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Author SHA1 Message Date
Martino Russi 2cfd5971a8 Merge branch 'main' into feat/onnx_support 2026-07-05 17:34:12 +02:00
Martino Russi 30cbea056e style: apply ruff format/lint to onnx examples 2026-07-05 17:32:54 +02:00
Martino Russi b5201f6c15 add onnx support 2026-06-16 15:15:48 +02:00
71 changed files with 1589 additions and 3932 deletions
+2 -2
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@@ -55,7 +55,7 @@ jobs:
github.repository == 'huggingface/lerobot'
permissions:
contents: read
uses: huggingface/doc-builder/.github/workflows/build_main_documentation.yml@e60a538eea9817ab312196d0d233604b01697265 # main
uses: huggingface/doc-builder/.github/workflows/build_main_documentation.yml@2430c1ec91d04667414e2fa31ecfc36c153ea391 # main
with:
commit_sha: ${{ github.sha }}
package: lerobot
@@ -78,7 +78,7 @@ jobs:
permissions:
contents: read
pull-requests: write
uses: huggingface/doc-builder/.github/workflows/build_pr_documentation.yml@e60a538eea9817ab312196d0d233604b01697265 # main
uses: huggingface/doc-builder/.github/workflows/build_pr_documentation.yml@2430c1ec91d04667414e2fa31ecfc36c153ea391 # main
with:
commit_sha: ${{ github.event.pull_request.head.sha }}
pr_number: ${{ github.event.number }}
-2
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@@ -169,8 +169,6 @@
- sections:
- local: phone_teleop
title: Phone
- local: isaac_teleop
title: Isaac Teleop
title: "Teleoperators"
- sections:
- local: cameras
+21 -30
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@@ -81,12 +81,6 @@ merged. Both prompts also carry a causal **event-boundary** definition (a
new event starts when an object becomes held / is released / reaches a new
location / a lid changes state / contents move) to sharpen where cuts land.
Optionally, a third **seeded-relabel** pass (`--plan.subtask_seeded_relabel`)
revisits each span with its previous/current/next segment contact sheets and
minimally corrects the label, using the first label as a prior — it keeps the
boundaries fixed and only sharpens wording, at the cost of one extra call per
subtask.
The resulting spans are then stitched into a gap-free, full-episode
cover, so **every frame has exactly one active subtask**. See
[`run_hf_job.py`](https://github.com/huggingface/lerobot/blob/main/examples/annotations/run_hf_job.py)
@@ -163,33 +157,30 @@ Every module is on by default and can be toggled independently (set to
### The VLM (`--vlm.*`)
| Flag | Default | What it does |
| -------------------------- | ------------------ | ------------------------------------------------------------------------------------ |
| `--vlm.model_id` | `Qwen/Qwen3.6-27B` | The model to serve and prompt. |
| `--vlm.camera_key` | first `images.*` | Which camera every prompt is grounded on. |
| `--vlm.serve_command` | auto | The exact `vllm serve …` command (set TP size, GPU memory, `--max-model-len` here). |
| `--vlm.parallel_servers` | `1` | Independent servers for round-robin routing (one per GPU). |
| `--vlm.num_gpus` | `0` | GPUs per server (`0` = one each). |
| `--vlm.client_concurrency` | `16` | In-flight requests across all servers. |
| `--vlm.max_new_tokens` | `512` | Generation cap per call. |
| `--vlm.temperature` | `0.2` | Sampling temperature. |
| `--vlm.reasoning_effort` | `null` | Thinking-budget hint (`low`/`medium`/`high`) forwarded to OpenAI-compatible servers. |
| Flag | Default | What it does |
| -------------------------- | ------------------ | ----------------------------------------------------------------------------------- |
| `--vlm.model_id` | `Qwen/Qwen3.6-27B` | The model to serve and prompt. |
| `--vlm.camera_key` | first `images.*` | Which camera every prompt is grounded on. |
| `--vlm.serve_command` | auto | The exact `vllm serve …` command (set TP size, GPU memory, `--max-model-len` here). |
| `--vlm.parallel_servers` | `1` | Independent servers for round-robin routing (one per GPU). |
| `--vlm.num_gpus` | `0` | GPUs per server (`0` = one each). |
| `--vlm.client_concurrency` | `16` | In-flight requests across all servers. |
| `--vlm.max_new_tokens` | `512` | Generation cap per call. |
| `--vlm.temperature` | `0.2` | Sampling temperature. |
### Subtasks / plan / memory (`--plan.*`)
| Flag | Default | What it does |
| ------------------------------- | ---------- | ---------------------------------------------------------------------------------------------------------------------------- |
| `--plan.frames_per_second` | `2.0` | Frame sampling rate for the contact sheets (`2.0` = one frame every 0.5s). |
| `--plan.max_frames_per_prompt` | `60` | Frame budget per VLM call. Episodes whose sampling exceeds this are auto-windowed at the same density, then stitched. |
| `--plan.contact_sheet_columns` | `5` | Columns per contact-sheet grid (`contact_sheet_frames_per_sheet` tiles, time row-major). |
| `--plan.plan_max_steps` | `8` | Upper bound on subtasks per episode. |
| `--plan.subtask_describe_first` | `true` | Run the describe→segment grounding pass (best subtask quality; +1 call/episode). |
| `--plan.subtask_seeded_relabel` | `false` | Second pass: re-label each subtask from its prev/current/next contact sheets, seeded with the first label (+1 call/subtask). |
| `--plan.subtask_relabel_frames` | `5` | Frames sampled uniformly per segment sheet in the relabel pass (only used when `subtask_seeded_relabel=true`). |
| `--plan.emit_plan` | `true` | Emit the numbered `plan` rows (`false` = subtasks + memory only). |
| `--plan.emit_memory` | `true` | Emit the `memory` rows (`false` = subtasks + plan only); symmetric to `emit_plan`. |
| `--plan.n_task_rephrasings` | `10` | How many `task_aug` rephrasings to emit (`0` disables). |
| `--plan.derive_task_from_video` | `if_short` | Use the dataset task as-is (`off`), only when it's missing/short (`if_short`), or always re-derive from video (`always`). |
| Flag | Default | What it does |
| ------------------------------- | ---------- | ------------------------------------------------------------------------------------------------------------------------- |
| `--plan.frames_per_second` | `2.0` | Frame sampling rate for the contact sheets (`2.0` = one frame every 0.5s). |
| `--plan.max_frames_per_prompt` | `60` | Frame budget per VLM call. Episodes whose sampling exceeds this are auto-windowed at the same density, then stitched. |
| `--plan.contact_sheet_columns` | `5` | Columns per contact-sheet grid (`contact_sheet_frames_per_sheet` tiles, time row-major). |
| `--plan.plan_max_steps` | `8` | Upper bound on subtasks per episode. |
| `--plan.subtask_describe_first` | `true` | Run the describe→segment grounding pass (best subtask quality; +1 call/episode). |
| `--plan.emit_plan` | `true` | Emit the numbered `plan` rows (`false` = subtasks + memory only). |
| `--plan.emit_memory` | `true` | Emit the `memory` rows (`false` = subtasks + plan only); symmetric to `emit_plan`. |
| `--plan.n_task_rephrasings` | `10` | How many `task_aug` rephrasings to emit (`0` disables). |
| `--plan.derive_task_from_video` | `if_short` | Use the dataset task as-is (`off`), only when it's missing/short (`if_short`), or always re-derive from video (`always`). |
### Interjections + VQA
+14 -16
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@@ -150,14 +150,14 @@ class MyPolicy(PreTrainedPolicy):
The methods called by the train/eval loops:
| Method | Used by | What it does |
| ----------------------------------------------------------------- | ----------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `reset() -> None` | `lerobot-eval` | Clear per-episode state at the start of each episode. |
| `select_action(batch, **kwargs) -> Tensor` | `lerobot-eval` | Return the next action `(B, action_dim)`. Called every step. |
| `predict_action_chunk(batch, **kwargs) -> Tensor` | the policy itself | Return an action chunk `(B, chunk_size, action_dim)`. Currently abstract on the base class — raise `NotImplementedError` if your policy doesn't chunk. |
| `forward(batch, reduction="mean") -> tuple[Tensor, dict \| None]` | `lerobot-train` | Return `(loss, output_dict)`. Accept `reduction="none"` if you want to support per-sample weighting. |
| `get_optim_params() -> dict` | the optimizer | Return `self.parameters()` for simple policies; return a named parameter dict for multi-optimizer policies (see `get_optim_params` in [`modeling_act.py`](https://github.com/huggingface/lerobot/blob/main/src/lerobot/policies/act/modeling_act.py) for a per-group learning-rate example). |
| `update() -> None` _(optional)_ | `lerobot-train` | Called after each optimizer step _if defined_. Use for EMA, target nets, replay buffers (TDMPC uses this). |
| Method | Used by | What it does |
| ----------------------------------------------------------------- | ----------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `reset() -> None` | `lerobot-eval` | Clear per-episode state at the start of each episode. |
| `select_action(batch, **kwargs) -> Tensor` | `lerobot-eval` | Return the next action `(B, action_dim)`. Called every step. |
| `predict_action_chunk(batch, **kwargs) -> Tensor` | the policy itself | Return an action chunk `(B, chunk_size, action_dim)`. Currently abstract on the base class — raise `NotImplementedError` if your policy doesn't chunk. |
| `forward(batch, reduction="mean") -> tuple[Tensor, dict \| None]` | `lerobot-train` | Return `(loss, output_dict)`. Accept `reduction="none"` if you want to support per-sample weighting. |
| `get_optim_params() -> dict` | the optimizer | Return `self.parameters()` for simple policies; return a named parameter dict for [multi-optimizer policies](https://github.com/huggingface/lerobot/blob/ecd38c50d7d15b4184cf42649ff1185ee2e11eeb/src/lerobot/policies/sac/modeling_sac.py#L61-L73). |
| `update() -> None` _(optional)_ | `lerobot-train` | Called after each optimizer step _if defined_. Use for EMA, target nets, replay buffers (TDMPC uses this). |
Batches are flat dictionaries keyed by the constants in [`lerobot.utils.constants`](https://github.com/huggingface/lerobot/blob/main/src/lerobot/utils/constants.py): `OBS_STATE` (`observation.state.<motor>`), `OBS_IMAGES` (`observation.images.<camera>`), `OBS_LANGUAGE`, `ACTION`, etc. Reuse the constants — don't invent new prefixes.
@@ -295,10 +295,12 @@ The file names are load-bearing: the factory does lazy imports by name, and the
### Wiring
Two places need to know about your policy. All by name.
Four places need to know about your policy. All by name.
1. **`policies/__init__.py`** — re-export `MyPolicyConfig` and add it to `__all__`. This import is what registers your policy: `@PreTrainedConfig.register_subclass("my_policy")` runs, and from then on the factory resolves everything by convention. **Don't** re-export the modeling class; it loads lazily through the factory (so `import lerobot` stays fast).
2. **`templates/lerobot_modelcard_template.md` and the root `README.md`** — the template is what `push_model_to_hub` renders into the model card of every checkpoint trained with your policy: add a one-line description of your policy in the `model_name` branches, map it in `policy_docs` so cards link to your MDX guide, and optionally add an architecture image to `diagrams`. Then add your policy to the models table in the root `README.md`, under the right category, linking to your doc page.
1. **`policies/__init__.py`** — re-export `MyPolicyConfig` and add it to `__all__`. **Don't** re-export the modeling class; it loads lazily through the factory (so `import lerobot` stays fast).
2. **`factory.py:get_policy_class`** — add a branch returning `MyPolicy` from a lazy import.
3. **`factory.py:make_policy_config`** and **`factory.py:make_pre_post_processors`** — same idea, two more branches.
4. **`templates/lerobot_modelcard_template.md` and the root `README.md`** — the template is what `push_model_to_hub` renders into the model card of every checkpoint trained with your policy: add a one-line description of your policy in the `model_name` branches, map it in `policy_docs` so cards link to your MDX guide, and optionally add an architecture image to `diagrams`. Then add your policy to the models table in the root `README.md`, under the right category, linking to your doc page.
Mirror an existing policy that's structurally similar to yours; the diff is small.
@@ -330,10 +332,6 @@ This way:
Add a matching extra to [`pyproject.toml`](https://github.com/huggingface/lerobot/blob/main/pyproject.toml) `[project.optional-dependencies]` and include it in the `all` extra so `pip install 'lerobot[all]'` keeps installing everything.
### Avoid copying a modeling file — subclass it
If your policy needs to modify a backbone that already exists in `transformers` (custom conditioning, extra inputs, a swapped sub-module), **do not vendor a copy of its `modeling_*.py`**. Instead, subclass the smallest upstream unit and override only what changes. [`pi_gemma.py`](https://github.com/huggingface/lerobot/blob/main/src/lerobot/policies/pi_gemma.py) is the canonical reference: it injects AdaRMS conditioning into PaliGemma/Gemma in ~370 lines by subclassing `GemmaModel`/`PaliGemmaModel` and overriding the decoder-layer forward, instead of forking the ~2,000-line modeling file. Model surgery on a _loaded_ native model is also fine (layer truncation, tokenizer expansion, hidden-state capture — see `evo1/internvl3_embedder.py`, `eo1/modeling_eo1.py`, `groot/groot_n1_7.py` for working examples). Reviewers will ask for this pattern when a PR arrives with a copied modeling file; the only accepted exception is a model that does not exist in `transformers` at all.
### Benchmarks and a published checkpoint
A new policy is much easier to review — and far more useful — when it ships with a working checkpoint and at least one number you can reproduce.
@@ -369,7 +367,7 @@ If your policy is real-robot-only and no sim benchmark applies, swap the sim eva
The general expectations are in [`CONTRIBUTING.md`](https://github.com/huggingface/lerobot/blob/main/CONTRIBUTING.md) and the [PR template](https://github.com/huggingface/lerobot/blob/main/.github/PULL_REQUEST_TEMPLATE.md). On top of those, reviewers will look for:
- [ ] `MyPolicy` and `MyPolicyConfig` cover the surface above; `__init_subclass__` accepts the class.
- [ ] `policies/__init__.py` re-exports the config (this registers the policy; the factory resolves modeling/processor by naming convention).
- [ ] `factory.py` and `policies/__init__.py` are wired (lazy imports for modeling).
- [ ] `make_my_policy_pre_post_processors` follows the naming convention.
- [ ] Optional deps live behind a `[project.optional-dependencies]` extra and the `TYPE_CHECKING + require_package` guard.
- [ ] `tests/policies/` updated; backward-compat artifact committed & policy-specific tests.
+5 -5
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@@ -162,11 +162,11 @@ Preliminary LeRobot integration results (GR00T-LeRobot, `eval.n_episodes >= 50`
| Suite | Success rate | Checkpoint |
| ---------------- | -----------: | ------------------------------------------------------------------------------------------------------------- |
| LIBERO Spatial | 95% | [nvidia/gr00t17-lerobot-libero_spatial-640](https://huggingface.co/nvidia/gr00t17-lerobot-libero_spatial-640) |
| LIBERO Object | 100% | [nvidia/gr00t17-lerobot-libero_object-640](https://huggingface.co/nvidia/gr00t17-lerobot-libero_object-640) |
| LIBERO Goal | 98% | [nvidia/gr00t17-lerobot-libero_goal-640](https://huggingface.co/nvidia/gr00t17-lerobot-libero_goal-640) |
| LIBERO 10 (Long) | 93% | [nvidia/gr00t17-lerobot-libero_10-640](https://huggingface.co/nvidia/gr00t17-lerobot-libero_10-640) |
| **Average** | **96.5%** | |
| LIBERO Spatial | 91% | [nvidia/gr00t17-lerobot-libero_spatial-640](https://huggingface.co/nvidia/gr00t17-lerobot-libero_spatial-640) |
| LIBERO Object | 81% | [nvidia/gr00t17-lerobot-libero_object-640](https://huggingface.co/nvidia/gr00t17-lerobot-libero_object-640) |
| LIBERO Goal | 97% | [nvidia/gr00t17-lerobot-libero_goal-640](https://huggingface.co/nvidia/gr00t17-lerobot-libero_goal-640) |
| LIBERO 10 (Long) | 84% | [nvidia/gr00t17-lerobot-libero_10-640](https://huggingface.co/nvidia/gr00t17-lerobot-libero_10-640) |
| **Average** | **88.25%** | |
```bash
export MODEL_ID=your_trained_model_on_huggingface
-397
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@@ -1,397 +0,0 @@
# Isaac Teleop
Control your robot with NVIDIA [Isaac Teleop](https://github.com/NVIDIA/IsaacTeleop), a
multi-modal teleoperation framework. Isaac Teleop drives a single `TeleopSession` from a range
of input devices — XR (VR) controllers, hand tracking, full-body tracking, Manus gloves, foot
pedals, and more.
In LeRobot, Isaac Teleop ships as a self-contained example under
[`examples/isaac_teleop_to_so101/`](https://github.com/huggingface/lerobot/tree/main/examples/isaac_teleop_to_so101).
Each Isaac Teleop input device is its own `Teleoperator` subclass in the example's
`isaac_teleop` package, sharing one session lifecycle (see `IsaacTeleopTeleoperator`). The
devices available today are the **XR controller** (`XRController`) and a back-drivable
**SO-101 leader arm** (`SO101LeaderArm`); Manus gloves and hand/full-body tracking are the
natural next devices. This guide focuses on the XR controller; the SO-101 leader is summarized
under [Run the example](#step-3-run-the-example).
**In this guide you'll learn:**
- How an Isaac Teleop device drives a robot endeffector (EE) target
- How the _clutch_ (squeeze/grip on the XR controller) engages teleoperation without jerking the arm
- How to run the SO101 teleoperation example and tune motion / gripper / IK
## Installation
The example lives in the LeRobot repository (it is not part of the `lerobot` pip package), so
clone the repo and install from source. The canonical, always-up-to-date install and usage
reference is the example's
[`README.md`](https://github.com/huggingface/lerobot/tree/main/examples/isaac_teleop_to_so101/README.md);
in short:
```bash
git clone https://github.com/huggingface/lerobot.git
cd lerobot
uv pip install -e ".[feetech,kinematics,dataset]" "huggingface_hub>=1.5"
uv pip install "isaacteleop[cloudxr,retargeters-lite]~=1.3.131" "scipy>=1.14"
```
`isaacteleop` is published on public PyPI (Linux only). The `cloudxr` extra brings the CloudXR
runtime bindings; `retargeters-lite` is the scipy-based retargeter path that resolves on both
x86_64 and ARM (on aarch64 — e.g. a DGX Spark — the full `retargeters` extra does not resolve
because of its `dex-retargeting`/`nlopt` pins, which is why it is not the default here). On
x86_64 you can additionally install the full retargeter stack:
```bash
uv pip install "isaacteleop[retargeters]~=1.3.131"
```
### Set up CloudXR and connect a headset
Isaac Teleop streams the headset to your machine over **NVIDIA CloudXR**, which provides the
OpenXR runtime the session connects to. By default LeTeleop **auto-launches the CloudXR runtime
for you** when you call `teleop_device.connect()` — you no longer have to run `python -m
isaacteleop.cloudxr` and `source cloudxr.env` in a separate shell. All you need is a supported
headset connected and the CloudXR firewall ports open. Follow the Isaac Teleop
[Quick Start](https://nvidia.github.io/IsaacTeleop/main/getting_started/quick_start.html) for the
headset-pairing and firewall details.
**First run (EULA).** The very first launch must accept the NVIDIA CloudXR EULA. The auto-launch
prompts for it **on stdin**, so on a headless machine it will hang waiting for input. Bootstrap
the EULA once, interactively, with:
```bash
python -m isaacteleop.cloudxr --accept-eula # one-time: accept the CloudXR EULA
```
After that, `connect()` launches the runtime non-interactively. The launch **blocks for ~30s**
while the runtime comes up.
**Configuration.** Two fields on `IsaacTeleopConfig` (shared by every device) control this:
- `auto_launch_cloudxr` (default `True`) — whether `connect()` starts the runtime. Set `False`
when CloudXR is already running externally.
- `cloudxr_env_file` (default `None`) — an optional CloudXR device-profile `.env` selecting the
headset transport (e.g. an Apple Vision Pro profile). This is launcher **input**; it is not the
`~/.cloudxr/run/cloudxr.env` **output** file the old manual flow told you to `source`. `None`
keeps the default auto-WebRTC profile — though the SO-101 example overrides it to the
`default.env` shipped next to `teleoperate.py` unless you pass `--teleop.cloudxr_env_file`.
**Opting out.** To skip the auto-launch (CloudXR already running), either set
`auto_launch_cloudxr=False` or export:
```bash
export LEROBOT_CLOUDXR_SKIP_AUTOLAUNCH=1
```
The **env var takes precedence over the config field**: if `LEROBOT_CLOUDXR_SKIP_AUTOLAUNCH=1` is
set, the auto-launch is skipped even when `auto_launch_cloudxr=True`. This variable is
**independent** of Isaac Lab's `ISAACLAB_CXR_SKIP_AUTOLAUNCH` — setting one does not affect the
other.
**One teleoperator per process.** The CloudXR runtime configures the environment process-wide (a
singleton), so run a single Isaac Teleop teleoperator per process.
**Shutting down.** Always call `teleop_device.disconnect()` on exit — including on Ctrl-C. Wrap
your teleoperation loop in `try/finally` and call `disconnect()` in the `finally`. This tears down
the OpenXR session **before** the CloudXR runtime, which is the required order; the launcher's
`atexit` hook only reaps the runtime and does not run the session's `__exit__`, so without an
explicit `disconnect()` an interrupted run shuts down in the wrong order.
```python
teleop_device.connect()
try:
while True:
action = teleop_device.get_action()
# ... drive the robot ...
finally:
teleop_device.disconnect()
```
See [System Requirements](https://nvidia.github.io/IsaacTeleop/main/references/requirements.html)
for supported OS / GPU / CloudXR versions and headsets.
## How it works
The XR controller is one Isaac Teleop **input** device. `XRController` is a deliberately thin
reader: it exposes the **raw** controller grip pose — already statically rebased into the robot
base frame — plus the squeeze and trigger analog values. It has **no** retargeters and **no**
clutch logic of its own. The clutch (engage latch + delta rebasing onto the EE) and the gripper
mapping live downstream in the example loop, which then feeds LeRobot's existing closedloop
Cartesian IK pipeline — the same one the phone teleoperator uses. The devicespecific pieces are
`XRController`, the loop's `Clutch`, and `MapXRControllerActionToRobotAction`; everything downstream
(`EEBoundsAndSafety`, `InverseKinematicsEEToJoints`) is shared, and a future device (e.g. Manus
gloves) would swap in its own `teleop_<device>.py` + processor while reusing the rest.
`XRController._build_pipeline` wires Isaac Teleop's `ControllersSource` — statically rebased into
the robot base frame by the native `ControllerTransform` (`base_T_anchor`) — and exposes the
transformed controller stream verbatim. `get_action()` reads the grip pose, squeeze, and trigger
straight off it; the session is always stepped `RUNNING` (there is no clutch retargeter to gate).
The `Clutch` class (in `examples/isaac_teleop_to_so101/isaac_teleop/clutch.py`, driven by the
loop in `common.py`) mirrors Isaac Teleop's `SO101ClutchRetargeter`, but lives in-loop so the
device can stay a thin reader:
- It latches its engage origin on the squeeze **engage edge** (the frame the squeeze first crosses
`clutch_threshold`) and rebases both position and orientation around it, so engaging does not
teleport the arm. `Clutch.rebase` returns the absolute base-frame target as a `(pos, quat)`
pair, which the loop concatenates into the 7D `ee_pose` fed to the processor.
- The analog trigger becomes a gripper `closedness` in `[0, 1]` (0 = open, 1 = closed),
proportional to the trigger pull, which `MapXRControllerActionToRobotAction` maps to a jaw target.
See the Isaac Teleop
[Retargeting interface](https://nvidia.github.io/IsaacTeleop/main/references/retargeting/index.html)
and [architecture overview](https://nvidia.github.io/IsaacTeleop/main/overview/architecture.html)
for how source nodes and retargeters compose.
```text
VR controller (OpenXR)
XRController.get_action() ── raw base-frame grip_pos / grip_quat + squeeze + trigger
│ (TeleopSession always stepped RUNNING; clutch lives downstream)
Clutch.rebase(grip_pos, grip_quat) ── engage-relative delta applied to the EE home (pos + orient)
│ ee_pose (7) / closedness → absolute ee_pose; closedness = trigger
MapXRControllerActionToRobotAction ── absolute ee.x/y/z; ee.w* = orientation rotvec target;
│ ee.x/y/z / ee.w* / ee.gripper_pos ee.gripper_pos = (1 - closedness) * 100
EEBoundsAndSafety ── workspace clip + per-frame step clamp (clamp+warn)
InverseKinematicsEEToJoints ── closed-loop Placo IK; position + soft-orientation
│ (orientation_weight=0.01) (passes ee.gripper_pos → gripper.pos)
SO-101 follower joint targets
```
### The clutch: owned by the example loop
Unlike the phone pipeline (which splits the clutch across `MapPhoneActionToRobotAction` and
`EEReferenceAndDelta`), the XR clutch lives entirely in the example loop's `Clutch` class. It emits
an **absolute** EE pose, so there is no `EEReferenceAndDelta` stage and no delta accumulation in the
processor — `MapXRControllerActionToRobotAction` is a pure, stateless perframe mapping.
The clutch latches its engage origin on the squeeze **engage edge** (the moment the squeeze crosses
`clutch_threshold`) and drives the EE from the motion _relative_ to that origin, so the arm does not
teleport on engage. On **every** engage — startup and midtask reclutch alike — the home
_position_ is latched from forward kinematics on the arm's **measured joints**, so the home equals
where the arm physically is even if it moved while disengaged, and the engage is jumpfree. The
home _orientation_ keeps the last commanded rotation: the 5DOF arm tracks orientation only
softly, so latching the measured wrist orientation would inject its tracking offset into the
command on every reclutch.
## Controls
- **Squeeze / grip** — the **clutch** (deadman). Hold it past `clutch_threshold` to engage
teleoperation; release to pause. Each engage recaptures the origin, so you can reposition
your hand while paused and reengage without the arm jumping (index/clutch style).
- **Trigger** — the **gripper**, controlled **analog**. The jaw tracks the trigger
proportionally — a halfpressed trigger leaves the jaw halfclosed — via a closedness in
`[0, 1]` (0 = open, 1 = closed) that maps to an absolute gripper joint target.
- **Controller orientation** — the **wrist**. The clutch rebases the controller orientation
(engagerelative, baseframe) into a soft IK orientation target the wrist tracks alongside
position. On the 5DOF SO101 the wrist follows the hand only partially by design — see
`orientation_weight` below.
## Get started
### Step 1: Create the teleoperator
```python
# Run from the repo root so the `examples` package is importable.
from examples.isaac_teleop_to_so101.isaac_teleop import XRController, XRControllerConfig
teleop_config = XRControllerConfig(
hand_side="right", # "left" or "right" controller
clutch_threshold=0.5, # squeeze value above which the clutch engages
)
teleop_device = XRController(teleop_config)
```
`XRController.get_action()` returns the **raw** baseframe controller pose, not a clutchrebased
target: `grip_pos` (3,) `[x, y, z]` [m] and `grip_quat` (4,) `[qx, qy, qz, qw]` in the robot base
frame, plus scalar `squeeze` and `trigger` analog values in `[0, 1]`. The example loop's `Clutch`
turns these into the absolute `ee_pose`, and the squeeze is thresholded by the loop against
`clutch_threshold` to engage.
### Step 2: Connect
Calling `teleop_device.connect()` first auto-launches the CloudXR runtime (unless you opted out —
see [Set up CloudXR and connect a headset](#set-up-cloudxr-and-connect-a-headset); this blocks for
~30s and on the first run prompts for the EULA on stdin), then starts the Isaac Teleop
[`TeleopSession`](https://nvidia.github.io/IsaacTeleop/main/getting_started/teleop_session.html)
(opens the OpenXR session and discovers the controllers). XR controllers are selfcalibrating, so
there is no manual calibration step — the clutch handles recentering each time you engage. Pair
`connect()` with a `try/finally` that calls `disconnect()` so the session tears down before the
runtime on exit/Ctrl-C.
### Step 3: Run the example
The example assumes you configured your robot (SO101 follower) and set the correct serial port.
The **robot URDF and its meshes are fetched automatically** on first run: the XR device downloads
the SO-101 URDF from the
[`lerobot/robot-urdfs` Hugging Face bucket](https://huggingface.co/buckets/lerobot/robot-urdfs/tree/so101)
into the LeRobot cache (`HF_LEROBOT_HOME/robot-urdfs/so101/`) and reuses it after, so there is no
separate download step :
```bash
python -m examples.isaac_teleop_to_so101.teleoperate --robot.type=so101_follower --robot.port=/dev/ttyACM0 \
--robot.id=so101_follower_arm --teleop.type=xr_controller
```
The CLI is `lerobot-teleoperate`-style (draccus): `--robot.*` configures the SO-101 follower and
`--teleop.type` selects the Isaac input device (`xr_controller` | `so101_leader`), with
`--teleop.*` its device knobs. `--teleop.type=xr_controller` runs the XR-controller path described
above. The startup safety contract: by default it slews all joints to a default reset pose over
`--reset_duration` seconds (`--reset_to_origin=false` keeps the arm where it is), then seeds the
clutch home from the arm's measured pose so the first engage is jump-free; the follower is
commanded only while the clutch is engaged.
**Customizing the reset pose.** The reset pose ships as a built-in default (a comfortable mid-range
pose) and works out of the box — you do **not** need to record anything. To tailor it to your setup,
back-drive the arm to the pose you want and run
`python -m examples.isaac_teleop_to_so101.override_reset_pose --id <robot.id>`; it writes the
current joints to a per-arm file in the LeRobot cache
(`HF_LEROBOT_HOME/reset_poses/<robot.name>/<robot.id>.json`, keyed like calibration), which then takes
priority over the built-in default on the next run. Because it lives in the user-local cache (not
the repo), your override stays on your machine, and both `teleoperate` and `record` honor it
when launched with the same `--robot.id`.
The other device, `--teleop.type=so101_leader`, mirrors the follower 1:1 from a back-drivable
SO-101 _leader arm_ whose joints are streamed by Isaac Teleop's native `so101_leader` plugin (no
clutch, no IK — the leader and follower share the SO-101 kinematics).
The `so101_leader_plugin` binary is a C++ plugin that is **not** part of the `isaacteleop` pip
package — you build it from the Isaac Teleop source tree. Follow
[Build Isaac Teleop from source](https://nvidia.github.io/IsaacTeleop/main/getting_started/build_from_source/index.html)
(in short, from your Isaac Teleop checkout: `cmake -B build && cmake --build build --parallel &&
cmake --install build`); the build installs the plugins under `<IsaacTeleop>/install/plugins/`, so
the binary lands at `install/plugins/so101_leader/so101_leader_plugin` — the `--launch_plugin` path
below. See the plugin's own `README.md` (next to the binary) for its serial/calibration details.
Point `--teleop.port` at the physical leader's serial port and `--launch_plugin` at that plugin
binary to have the script spawn it after CloudXR is up:
```bash
python -m examples.isaac_teleop_to_so101.teleoperate --robot.type=so101_follower --robot.port=/dev/ttyACM0 \
--robot.id=so101_follower_arm --teleop.type=so101_leader \
--teleop.port=/dev/ttyACM1 --teleop.id=so101_leader_arm \
--launch_plugin=/code/Teleop/install/plugins/so101_leader/so101_leader_plugin
```
(Note `so101_leader` here is the _Isaac_ leader, resolved against the Isaac Teleop device
registry, distinct from `lerobot-teleoperate`'s serial `so101_leader`.) When a `--teleop.port` is
set, the plugin's tick→radian calibration is inferred from `--teleop.id` and passed to the plugin
as its third positional arg — the LeRobot-format JSON at
`HF_LEROBOT_CALIBRATION/teleoperators/so_leader/<id>.json`, the same file the serial SO-101 leader
uses (`lerobot-calibrate --teleop.type=so101_leader --teleop.id=<id>`). If it is missing the script
warns and the plugin uses built-in defaults. Run `python -m examples.isaac_teleop_to_so101.teleoperate --help` for all flags. Its
startup safety contract: by default the follower is
slewed to the leader's first reading over `--align_duration` seconds (`--align=false` to skip) so
the arm does not snap when the mirror begins, and while the leader stream is stale the follower is
held at its measured pose.
The URDF fetch uses `huggingface_hub` (already a LeRobot dependency) against the public
`lerobot/robot-urdfs` bucket, so it needs no login. It is cached under
`HF_LEROBOT_HOME/robot-urdfs/so101/`; delete that folder to force a redownload.
Then, in your headset: squeeze and hold the grip to engage, move the controller to drive the
arm, twist/tilt it to orient the wrist, and press the trigger to close the gripper
(proportionally — release to open).
To record a dataset (not just teleoperate), use `record.py` in the same folder. It dispatches on
`--teleop.type` (`xr_controller` | `so101_leader`) exactly like `teleoperate.py`, so either device
can drive the follower, and it saves the commanded joints to a LeRobot dataset (`lerobot-record`-style
`--dataset.*` flags). See its module docstring for the full CLI and the keyboard recording shortcuts.
## Important pipeline steps and options
The clutch already produces an absolute baseframe pose, so the processor side is a thin
**absolutepose** path — there is no frame remap, no delta accumulation, and no
`EEReferenceAndDelta` stage.
- `MapXRControllerActionToRobotAction` is a stateless perframe mapping from the device output to
the IK input contract. It writes the absolute baseframe position, encodes the absolute
orientation as a rotvec target, and inverts the closedness into a motor gripper target:
```python
action["ee.x"], action["ee.y"], action["ee.z"] = ee_pose[:3] # absolute, base frame [m]
action["ee.wx"], action["ee.wy"], action["ee.wz"] = orient_rotvec # orientation target (rotvec)
action["ee.gripper_pos"] = (1 - closedness) * 100 # motor units; SO-101 calibrates 100 = open
```
The gripper polarity (`100 = open, 0 = closed`) is a hardwarecalibration convention in the source — flip it there if the jaw opens when it should close.
- `EEBoundsAndSafety` clamps the EE to a workspace and ratelimits perframe jumps. The clutch's
noteleport keeps frames small, so `max_ee_step_m` mostly catches transient controller tracking
glitches. The z floor is `0.0` (the table plane) so a stray target cannot drive the EE below the
table; x/y stay at the loose `[-1, 1]` m box. Set `raise_on_jump=False` so an overlimit frame is
**clamped and warned** instead of raising — a crash midloop would leave the arm uncontrolled:
```python
EEBoundsAndSafety(
end_effector_bounds={"min": [-1.0, -1.0, 0.0], "max": [1.0, 1.0, 1.0]},
max_ee_step_m=0.10,
raise_on_jump=False,
)
```
- `InverseKinematicsEEToJoints(initial_guess_current_joints=False, orientation_weight=0.01)` solves
closedloop Placo IK. SO101 is a 5DOF arm, so the IK is positiondominant; the small
`orientation_weight` lets it softly track the orientation target carried in `ee.w*` so the wrist
follows the hand, while the underdetermined roll stays partial by design. There is **no**
`GripperVelocityToJoint`: the absolute `ee.gripper_pos` is passed straight to `gripper.pos`.
`initial_guess_current_joints=False` warmstarts each solve from the **previous IK solution**
rather than reseeding from the measured joints, so the joint trajectory stays continuous
frametoframe. Tune `orientation_weight` on hardware — too high fights position tracking, too
low ignores the orientation command.
The example also gates safety at the loop level: after the startup reset slew (on by default —
pass `--reset_to_origin=false` to keep the arm where it is), it commands the robot **only while
the clutch is engaged**, and resends the measured joints while disengaged, so releasing the
clutch freezes the arm in place.
See the [Processors for Robots and Teleoperators](./processors_robots_teleop) guide for more on
adapting the pipeline to other robots.
## Troubleshooting
- **`ModuleNotFoundError: isaacteleop`** — the `isaacteleop` package is not installed in the
active environment. Re-run the install command at the top of this guide:
`uv pip install "isaacteleop[cloudxr,retargeters-lite]~=1.3.131"`.
- **No controllers found** — make sure the CloudXR runtime is running, the firewall ports are
whitelisted, and the headset is connected (see
[Set up CloudXR and connect a headset](#set-up-cloudxr-and-connect-a-headset) and the Isaac
Teleop [Quick Start](https://nvidia.github.io/IsaacTeleop/main/getting_started/quick_start.html)).
- **CloudXR auto-launch failed** — `connect()` raises a `RuntimeError` if the runtime does not
come up within its startup timeout. Check the launcher logs under `~/.cloudxr/logs`. Common
causes: the EULA was never accepted (run `python -m isaacteleop.cloudxr --accept-eula` once,
interactively — the auto-launch prompts on stdin and hangs headless), or the runtime is already
running externally (set `LEROBOT_CLOUDXR_SKIP_AUTOLAUNCH=1` or `auto_launch_cloudxr=False` to
skip the auto-launch).
- **Arm does not move** — the clutch is a deadman: you must hold the squeeze/grip past
`clutch_threshold`. Lower the threshold if your controller's squeeze is reported softly.
- **Motion feels misaligned** — confirm the headset/play space orientation. The controller stream
is rebased into the robot base frame by the `base_T_anchor` transform on `XRControllerConfig`
(default: standard OpenXR → robot axis convention); adjust it if your anchor frame differs.
## Learn more
NVIDIA Isaac Teleop documentation ([docs home](https://nvidia.github.io/IsaacTeleop/),
[GitHub](https://github.com/NVIDIA/IsaacTeleop)):
- [Quick Start](https://nvidia.github.io/IsaacTeleop/main/getting_started/quick_start.html) —
install, run the CloudXR server, connect a headset, run a teleop example.
- [TeleopSession](https://nvidia.github.io/IsaacTeleop/main/getting_started/teleop_session.html) —
the session API `XRController` wraps.
- [Retargeting interface](https://nvidia.github.io/IsaacTeleop/main/references/retargeting/index.html)
and [architecture overview](https://nvidia.github.io/IsaacTeleop/main/overview/architecture.html) —
how source nodes and retargeters compose into a pipeline.
- [Build from source](https://nvidia.github.io/IsaacTeleop/main/getting_started/build_from_source/index.html) —
build `isaacteleop` (and its C++ plugins, including the `so101_leader` plugin used above) from a
local checkout.
- [System Requirements](https://nvidia.github.io/IsaacTeleop/main/references/requirements.html) and
the [CloudXR SDK docs](https://docs.nvidia.com/cloudxr-sdk) — supported platforms, GPUs,
CloudXR/OpenXR runtime versions, and headsets.
+41 -108
View File
@@ -6,11 +6,12 @@ Encoding frames into an MP4 is a full FFmpeg pipeline: choice of encoder, pixel
You can set these parameters from the CLI with `--dataset.rgb_encoder.<field>` (e.g. with `lerobot-record` or `lerobot-rollout`). The same block applies to every camera video stream in that run.
> [!TIP]
> Video storage must be on for `rgb_encoder` to have any effect —
> `use_videos=True` in Python APIs, or `--dataset.video=true` on the CLI (the
> recording default). With video off, inputs stay as images and `rgb_encoder` is
> ignored.
<Tip>
Video storage must be on for `rgb_encoder` to have any effect —
`use_videos=True` in Python APIs, or `--dataset.video=true` on the CLI (the
recording default). With video off, inputs stay as images and `rgb_encoder` is
ignored.
</Tip>
For details on **when** frames are written vs. encoded (streaming vs. post-episode), queues, and other top-level `--dataset.*` switches, see [Streaming Video Encoding](./streaming_video_encoding). For an encoding-parameter comparison and experiments, see the [video-benchmark Space](https://huggingface.co/spaces/lerobot/video-benchmark).
@@ -42,10 +43,12 @@ lerobot-record \
## Tuning parameters
> [!WARNING]
> The defaults are tuned to balance **compression ratio**, **visual quality**, and **decoding/seek speed** for typical robotics datasets. Changing them can affect both recording (CPU load, frame drops) and training (decoding throughput, image quality).
>
> Only override these parameters if you have a specific reason to, and measure the impact on your pipeline before relying on the new settings.
<Tip warning={true}>
The defaults are tuned to balance **compression ratio**, **visual quality**, and **decoding/seek speed** for typical robotics datasets. Changing them can affect both recording (CPU load, frame drops) and training (decoding throughput, image quality).
Only override these parameters if you have a specific reason to, and measure the impact on your pipeline before relying on the new settings.
</Tip>
All flags below are prefixed with `--dataset.rgb_encoder.` on the CLI.
@@ -66,92 +69,25 @@ All flags below are prefixed with `--dataset.rgb_encoder.` on the CLI.
Depth maps (Intel RealSense, Reachy 2) are stored as their **own video streams** alongside the RGB streams. Raw depth (`uint16` millimetres or `float32` metres) can't survive an 8-bit codec, so LeRobot **quantizes** each map to a 12-bit code (`[0, 4095]`) — logarithmically by default, to match the `1/depth` error profile of depth sensors — then packs it into a high-bit-depth pixel format (`gray12le`) and encodes it with a 12-bit codec.
<div style="margin:28px 0;padding:14px 0;">
<div style="margin:0 auto;display:flex;flex-wrap:wrap;justify-content:center;align-items:stretch;gap:6px;font-family:'Source Sans 3',ui-sans-serif,system-ui,sans-serif;font-size:14px;font-weight:600;color:#1B1B1D;">
<span style="display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:2px;background:#DBEAFE;color:#1D4ED8;border-radius:9px;padding:8px 12px;">
<span>Raw depth</span>
<span style="font-size:11px;font-weight:400;color:#3B6FD4;white-space:nowrap;">
uint16 mm
<br />
float32 m
</span>
</span>
<span style="display:flex;align-items:center;font-size:16px;color:#C3CBD9;">
</span>
<div style="border:2px dashed #C4B5FD;border-radius:13px;padding:18px 12px 12px;position:relative;display:flex;align-items:stretch;gap:6px;">
<span style="position:absolute;top:-10px;left:12px;background:#fff;padding:0 6px;font-size:11px;font-weight:700;color:#7E22CE;text-transform:uppercase;letter-spacing:0.5px;white-space:nowrap;">
Record time
</span>
<span style="display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:2px;background:#F3E8FF;color:#7E22CE;border-radius:9px;padding:8px 12px;">
<span>Clip</span>
<span style="font-size:11px;font-weight:400;color:#9061C2;white-space:nowrap;">
to [depth_min,
<br />
depth_max]
</span>
</span>
<span style="display:flex;align-items:center;font-size:16px;color:#C3CBD9;">
</span>
<span style="display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:2px;background:#F3E8FF;color:#7E22CE;border-radius:9px;padding:8px 12px;">
<span>Quantize</span>
<span style="font-size:11px;font-weight:400;color:#9061C2;white-space:nowrap;">
12-bit codes 04095
<br />
log (default) or linear
</span>
</span>
<span style="display:flex;align-items:center;font-size:16px;color:#C3CBD9;">
</span>
<span style="display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:2px;background:#F3E8FF;color:#7E22CE;border-radius:9px;padding:8px 12px;">
<span>Pack</span>
<span style="font-size:11px;font-weight:400;color:#9061C2;white-space:nowrap;">
into gray12le
<br />
plane
</span>
</span>
<span style="display:flex;align-items:center;font-size:16px;color:#C3CBD9;">
</span>
<span style="display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:2px;background:#F3E8FF;color:#7E22CE;border-radius:9px;padding:8px 12px;">
<span>Encode</span>
<span style="font-size:11px;font-weight:400;color:#9061C2;white-space:nowrap;">
HEVC
<br />
Main 12
</span>
</span>
</div>
<span style="display:flex;align-items:center;font-size:16px;color:#C3CBD9;">
</span>
<span style="display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:2px;background:#FEF3C7;color:#B45309;border-radius:9px;padding:8px 12px;">
<span>MP4</span>
<span style="font-size:11px;font-weight:400;color:#C77D18;white-space:nowrap;">
stored
<br />
stream
</span>
</span>
<span style="display:flex;align-items:center;font-size:16px;color:#34A06B;">
</span>
<div style="border:2px dashed #6EE7B7;border-radius:13px;padding:18px 12px 12px;position:relative;display:flex;align-items:center;gap:6px;">
<span style="position:absolute;top:-10px;left:12px;background:#fff;padding:0 6px;font-size:11px;font-weight:700;color:#047857;text-transform:uppercase;letter-spacing:0.5px;white-space:nowrap;">
Load time
</span>
<span style="display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:2px;background:#D1FAE5;color:#047857;border-radius:9px;padding:8px 12px;">
<span>Dequantize</span>
<span style="font-size:11px;font-weight:400;color:#059669;white-space:nowrap;">
to mm / m
</span>
</span>
</div>
</div>
</div>
```mermaid
flowchart LR
A["Raw depth (uint16 mm / float32 m)"] --> B["Clip to depth_min, depth_max"]
B --> C["Quantize to 12-bit code 04095 (log or linear)"]
C --> D["Pack into gray12le"]
D --> E["Encode video (hevc Main 12)"]
E --> F[("MP4 + metadata: depth_min/max, shift, use_log")]
F -. "load time (depth_output_unit)" .-> G["Dequantize to mm or m"]
classDef input fill:#e3f2fd,stroke:#1565c0,color:#0d47a1;
classDef encode fill:#ede7f6,stroke:#5e35b1,color:#311b92;
classDef store fill:#fff8e1,stroke:#f9a825,color:#e65100;
classDef load fill:#e8f5e9,stroke:#2e7d32,color:#1b5e20;
class A input;
class B,C,D,E encode;
class F store;
class G load;
```
Configure the depth pipeline through a parallel **`depth_encoder`** block (`DepthEncoderConfig`). It shares every `RGBEncoderConfig` field (`vcodec`, `pix_fmt`, `crf`, …) and adds four quantizer knobs, set via `--dataset.depth_encoder.<field>`:
@@ -232,16 +168,15 @@ After the first episode of a video stream is encoded, the encoder configuration
Two sources contribute to the `info` block:
| Source | Where it comes from | Fields |
| ------------------- | ----------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------- |
| **Stream-derived** | Read back from the encoded MP4 with PyAV. | `video.height`, `video.width`, `video.codec`, `video.pix_fmt`, `video.fps`, `video.channels`, `is_depth_map`, `audio.*` |
| **Encoder-derived** | Taken from `RGBEncoderConfig` / `DepthEncoderConfig`. | `video.g`, `video.crf`, `video.preset`, `video.fast_decode`, `video.video_backend`, `video.extra_options` |
- **Stream-derived** (read back from the encoded MP4 with PyAV): `video.height`, `video.width`, `video.codec`, `video.pix_fmt`, `video.fps`, `video.channels`, `is_depth_map`, plus `audio.*` if an audio stream is present.
- **Encoder-derived** (taken from `RGBEncoderConfig` or `DepthEncoderConfig`): `video.g`, `video.crf`, `video.preset`, `video.fast_decode`, `video.video_backend`, `video.extra_options`.
> [!IMPORTANT]
> This block is populated **once**, from the **first** episode. It assumes every
> episode in the dataset was encoded with the same `rgb_encoder`. Changing
> encoder settings partway through a recording is not supported — the
> `info.json` will only reflect the parameters used for the first episode.
<Tip>
This block is populated **once**, from the **first** episode. It assumes every
episode in the dataset was encoded with the same `rgb_encoder`. Changing
encoder settings partway through a recording is not supported — the
`info.json` will only reflect the parameters used for the first episode.
</Tip>
---
@@ -249,7 +184,5 @@ Two sources contribute to the `info` block:
When aggregating datasets with `merge_datasets`, video files are concatenated as-is (no re-encoding), and encoder fields in `info.json` are merged per-key:
| Merge rule | Fields | Behaviour |
| ------------------ | ---------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Must match** | `video.codec`, `video.pix_fmt`, `video.height`, `video.width`, `video.fps` | Stream-derived fields must match across sources, otherwise FFmpeg's concat demuxer fails. |
| **Merged loosely** | `video.g`, `video.crf`, `video.preset`, `video.fast_decode`, `video.extra_options` | Encoder-tuning fields. If every source agrees, the value is kept; if not, it's set to `null` (or `{}` for `video.extra_options`) and a warning is logged. |
- **Stream-derived fields must match** across sources: `video.codec`, `video.pix_fmt`, `video.height`, `video.width`, `video.fps`. Otherwise FFmpeg's concat demuxer fails.
- **Encoder-tuning fields are merged loosely**: `video.g`, `video.crf`, `video.preset`, `video.fast_decode`, `video.extra_options`. If every source agrees, the value is kept; if not, it's set to `null` (or `{}` for `video.extra_options`) and a warning is logged.
+1 -4
View File
@@ -46,11 +46,8 @@ CMD = (
"apt-get update -qq && apt-get install -y -qq git ffmpeg && "
"pip install --no-deps "
"'lerobot @ git+https://github.com/huggingface/lerobot.git@main' && "
# Pins mirror pyproject.toml — unpinned installs pull av 18 / datasets 5 /
# draccus 0.11, which break lerobot at import time.
"pip install --upgrade-strategy only-if-needed "
"'datasets>=4.7.0,<5.0.0' 'pyarrow>=21.0.0,<30.0.0' 'av>=15.0.0,<16.0.0' 'draccus==0.10.0' "
"'pandas>=2.0.0,<3.0.0' jsonlines gymnasium torchcodec mergedeep pyyaml-include toml typing-inspect "
"datasets pyarrow av jsonlines draccus gymnasium torchcodec mergedeep pyyaml-include toml typing-inspect "
"openai && "
"export VLLM_MEMORY_PROFILER_ESTIMATE_CUDAGRAPHS=0 && "
"export VLLM_VIDEO_BACKEND=pyav && "
-131
View File
@@ -1,131 +0,0 @@
# Isaac Teleop → SO-101
Teleoperate an SO-101/SO-100 follower arm — and record LeRobot datasets — with NVIDIA
[Isaac Teleop](https://github.com/NVIDIA/IsaacTeleop). Two input devices ship today:
- **XR (VR) controller** (`--teleop.type=xr_controller`) — the controller's grip pose drives the
end-effector through a squeeze-to-engage clutch and LeRobot's Cartesian IK pipeline; the analog
trigger drives the gripper.
- **SO-101 leader arm** (`--teleop.type=so101_leader`) — a back-drivable leader arm mirrored 1:1
onto the follower via Isaac Teleop's native `so101_leader` plugin (no clutch, no IK).
The full narrative guide (how the clutch works, CloudXR setup, headset pairing, tuning, and
troubleshooting) is in the [LeRobot docs](https://huggingface.co/docs/lerobot/isaac_teleop)
(source: `docs/source/isaac_teleop.mdx`). This README is the canonical install and usage
reference.
## Requirements
- Linux workstation (see NVIDIA's
[system requirements](https://nvidia.github.io/IsaacTeleop/main/references/requirements.html)
for supported OS/GPU/headset combinations; `isaacteleop` publishes Linux wheels only).
- An SO-101 (or SO-100) follower arm, calibrated with `lerobot-calibrate`.
- For the XR device: a CloudXR-capable headset (e.g. Quest 3, Pico 4, Apple Vision Pro) on the
same network.
- For the leader device: a second, back-drivable SO-101 leader arm and the `so101_leader` plugin
binary built from the Isaac Teleop source tree (see
[Build from source](https://nvidia.github.io/IsaacTeleop/main/getting_started/build_from_source/index.html)).
## Installation
This example lives in the LeRobot repository and is not part of the `lerobot` pip package, so
work from a source checkout. From the repo root:
```bash
# LeRobot with the extras this example uses:
# feetech - SO-101 serial motor bus
# kinematics - Placo IK solver (XR controller path)
# dataset - dataset recording (record.py)
# huggingface_hub >= 1.5 is needed by the automatic URDF fetch (Buckets API).
uv pip install -e ".[feetech,kinematics,dataset]" "huggingface_hub>=1.5"
# Isaac Teleop from public PyPI. `cloudxr` brings the CloudXR runtime bindings;
# `retargeters-lite` is the scipy-based retargeter path that resolves on both
# x86_64 and ARM (the full `retargeters` extra does not resolve on aarch64).
uv pip install "isaacteleop[cloudxr,retargeters-lite]~=1.3.131" "scipy>=1.14"
# Optional, x86_64 only: the full retargeter stack.
uv pip install "isaacteleop[retargeters]~=1.3.131"
```
One-time CloudXR EULA (the auto-launch prompts on stdin and would hang on a headless machine):
```bash
python -m isaacteleop.cloudxr --accept-eula
```
## Usage
Run everything from the repo root with `python -m` so the `examples` package resolves.
### Teleoperate — XR controller
```bash
python -m examples.isaac_teleop_to_so101.teleoperate \
--robot.type=so101_follower \
--robot.port=/dev/ttyACM0 \
--robot.id=so101_follower_arm \
--teleop.type=xr_controller
```
On startup the script launches the CloudXR runtime (~30 s), prints the workstation IP to enter in
the headset's CloudXR web client, waits for the controllers to stream, slews the arm to a reset
pose (`--reset_to_origin=false` to skip), and then: **hold the squeeze/grip** to engage, move the
controller to drive the arm, pull the trigger to close the gripper. Releasing the squeeze freezes
the arm. The SO-101 URDF is fetched automatically from the `lerobot/robot-urdfs` Hugging Face
bucket into the LeRobot cache on first run.
To customize the reset pose: back-drive the arm to the pose you want, then
```bash
python -m examples.isaac_teleop_to_so101.override_reset_pose --port /dev/ttyACM0 --id so101_follower_arm
```
which writes it to `HF_LEROBOT_HOME/reset_poses/<robot.name>/<robot.id>.json`; runs with the same
`--robot.id` use it automatically.
### Teleoperate — SO-101 leader arm
```bash
python -m examples.isaac_teleop_to_so101.teleoperate \
--robot.type=so101_follower --robot.port=/dev/ttyACM0 --robot.id=so101_follower_arm \
--teleop.type=so101_leader --teleop.port=/dev/ttyACM1 --teleop.id=so101_leader_arm \
--launch_plugin=/path/to/IsaacTeleop/install/plugins/so101_leader/so101_leader_plugin
```
The follower is first slewed to the leader's pose over `--align_duration` seconds
(`--align=false` to skip), then mirrors it 1:1. The plugin reuses the serial leader's calibration
(`HF_LEROBOT_CALIBRATION/teleoperators/so_leader/<teleop.id>.json`).
### Record a dataset
`record.py` takes the same `--robot.*`/`--teleop.*`/loop flags plus `lerobot-record`-style
`--dataset.*` flags:
```bash
python -m examples.isaac_teleop_to_so101.record \
--robot.type=so101_follower --robot.port=/dev/ttyACM0 --robot.id=so101_follower_arm \
--teleop.type=xr_controller \
--robot.cameras="{ front: {type: opencv, index_or_path: 0, width: 640, height: 480, fps: 30}}" \
--dataset.repo_id=<hf_user>/<dataset_name> \
--dataset.single_task="Pick up the cube" \
--dataset.num_episodes=3 --dataset.episode_time_s=20 --dataset.reset_time_s=5
```
Keyboard shortcuts (terminal-first, so they work over SSH): **Right/n** end episode early,
**Left/r** re-record, **Esc/q** stop after the current episode.
Run either script with `--help` for all flags.
## Layout
```
isaac_teleop/ device library: session lifecycle (base.py), XRController,
SO101LeaderArm, Clutch, configs, and the XR→IK processor step
common.py shared loop infra: device bundles, clutch/IK pipeline wiring,
reset/align slews, URDF fetch, keyboard listener
teleoperate.py teleoperation CLI (device selected via --teleop.type)
record.py dataset-recording CLI (same device selection + --dataset.*)
override_reset_pose.py save the current joints as the per-arm reset pose
default.env CloudXR device-profile overrides passed to the launcher
```
@@ -1,17 +0,0 @@
#!/usr/bin/env python
# Copyright 2026 NVIDIA Corporation and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Isaac Teleop -> SO-101 example package."""
-650
View File
@@ -1,650 +0,0 @@
#!/usr/bin/env python
# Copyright 2026 NVIDIA Corporation and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Shared device + control-loop infrastructure for the Isaac Teleop -> SO-101 examples.
Consumed by ``teleoperate.py`` and ``record.py``, which both build a per-device
:class:`Device` bundle and run the same loop: read -> (maybe command) -> hold-when-idle ->
sleep. A :class:`Device` bundles three closures: ``compute(obs) -> RobotAction | None``
(``None`` = hold at the measured pose while idle), ``startup``, and ``cleanup``. The devices:
* ``xr_controller`` — a thin :class:`XRController` whose raw grip pose an in-loop
:class:`Clutch` turns into an EE target for LeRobot's Cartesian IK pipeline.
* ``so101_leader`` — a back-drivable leader arm mirrored 1:1 into the follower.
Requires the ``isaacteleop`` package and an OpenXR runtime (install instructions in this
folder's ``README.md``). User-facing guide: ``docs/source/isaac_teleop.mdx``.
"""
import json
import logging
import socket
import subprocess
import sys
import time
from collections.abc import Callable
from contextlib import suppress
from dataclasses import dataclass
from importlib.resources import files
from pathlib import Path
from typing import Protocol
import numpy as np
from lerobot.model.kinematics import RobotKinematics
from lerobot.processor import (
RobotProcessorPipeline,
robot_action_observation_to_transition,
transition_to_robot_action,
)
from lerobot.robots import RobotConfig, make_robot_from_config
from lerobot.robots.so_follower import SOFollowerConfig # noqa: F401 (registers so101_follower)
from lerobot.robots.so_follower.robot_kinematic_processor import (
EEBoundsAndSafety,
InverseKinematicsEEToJoints,
)
from lerobot.types import RobotAction, RobotObservation
from lerobot.utils.constants import HF_LEROBOT_CALIBRATION, HF_LEROBOT_HOME, TELEOPERATORS
from lerobot.utils.robot_utils import precise_sleep
from .isaac_teleop import (
Clutch,
IsaacTeleopConfig,
MapXRControllerActionToRobotAction,
SO101LeaderArm,
SO101LeaderArmConfig,
XRController,
)
# Fixed rate [Hz] for the teleoperate loop and the pre-loop slews / connect-wait poll sleeps.
FPS = 30
# CloudXR device-profile env file passed to the launcher (see default.env in this package).
CLOUDXR_ENV_FILE = str(files(__package__) / "default.env")
class LoopConfig(Protocol):
"""Structural type for the loop/launch knobs ``build_device`` and the ``setup_*`` read.
Both ``TeleoperateConfig`` and ``RecordConfig`` satisfy it, keeping ``common`` decoupled
from either entry point's concrete config.
"""
teleop: IsaacTeleopConfig
robot: RobotConfig
launch_plugin: str | None
reset_to_origin: bool
reset_duration: float
align: bool
align_duration: float
# Per-device bundle consumed by the shared loop. ``compute`` returns None to mean
# "idle -> hold at the measured pose"; ``startup`` warms up; ``cleanup`` reaps/disconnects.
@dataclass(frozen=True)
class Device:
compute: Callable[[RobotObservation | None], RobotAction | None]
startup: Callable[[], None]
cleanup: Callable[[], None]
def hold_action(obs: RobotObservation, motor_names: list[str]) -> dict[str, float]:
"""Re-send the measured joints — the explicit hold when a device is idle."""
return {f"{name}.pos": float(obs[f"{name}.pos"]) for name in motor_names}
class HoldLatch:
"""Resolve the per-frame action, holding one LATCHED pose while the device is idle.
Re-sending the freshly measured joints on every idle frame would ratchet the arm
downward: under gravity the P-only servo settles below its goal by a steady-state
error, so each re-command of the measurement lowers the goal by that error again.
Latching the target once on the active->idle transition holds a fixed pose instead.
"""
def __init__(self, motor_names: list[str]):
self._motor_names = motor_names
self._held: dict[str, float] | None = None
def resolve(self, action: RobotAction | None, obs: RobotObservation) -> RobotAction:
"""Pass through an active action (clearing the latch); latch + hold when idle."""
if action is not None:
self._held = None
return action
if self._held is None:
self._held = hold_action(obs, self._motor_names)
return self._held
def slew(
robot,
motor_names: list[str],
target_fn: Callable[[], dict[str, float]],
duration_s: float,
) -> None:
"""Linearly slew all joints from their current measured pose toward a target.
``target_fn`` is called EACH step, so the leader can pass a live re-read (landing on its
current pose at ``alpha == 1`` for a continuous handoff) while XR passes a constant.
"""
obs = robot.get_observation()
start = {name: float(obs[f"{name}.pos"]) for name in motor_names}
n_steps = max(1, int(duration_s * FPS))
for step in range(1, n_steps + 1):
alpha = step / n_steps
target = target_fn()
action = {f"{name}.pos": start[name] + alpha * (target[name] - start[name]) for name in motor_names}
robot.send_action(action)
precise_sleep(1.0 / FPS)
# ============================================================================
# XR controller device
# ============================================================================
# Per-frame EE rate limit [m]. With raise_on_jump=False, EEBoundsAndSafety clamps an
# over-limit step instead of raising, absorbing a tracking glitch as one slow frame. At
# FPS=30, 0.1 m/frame caps EE speed at ~3 m/s. (end_effector_bounds clips the absolute target.)
MAX_EE_STEP_M = 0.1
# Soft-orientation IK weight: small but nonzero so the wrist follows the hand while position
# dominates (the 5-DOF SO-101 cannot realize an arbitrary orientation). 0.0 = position-only.
IK_ORIENTATION_WEIGHT = 0.01
def _ensure_so101_urdf() -> str:
"""Return the cached SO-101 URDF path, fetching the ``so101`` folder (URDF + meshes) from
the public ``lerobot/robot-urdfs`` HF bucket into the LeRobot cache on first use."""
dest_dir = HF_LEROBOT_HOME / "robot-urdfs" / "so101"
urdf_path = dest_dir / "so101_new_calib.urdf"
# Completeness marker written only after a FULL sync: the URDF file alone is not a
# completeness signal (an interrupted first sync can leave the meshes it references
# missing, which the URDF's mere existence would then hide forever). Re-syncing is
# idempotent and repairs a partial cache; delete the folder to force a re-download.
marker = dest_dir / ".sync_complete"
if not marker.exists():
from huggingface_hub import sync_bucket
sync_bucket("hf://buckets/lerobot/robot-urdfs/so101", str(dest_dir), quiet=True)
marker.touch()
return str(urdf_path)
# Default duration [s] for the startup reset-to-origin slew.
RESET_DURATION_S = 5.0
# Optional cached file written by override_reset_pose.py. When present it takes priority over RESET_ORIGIN_DEG.
RESET_POSE_FILE = str(HF_LEROBOT_HOME / "reset_poses" / "{robot_name}" / "{robot_id}.json")
# Reset target in each motor's native units (arm joints in degrees, gripper RANGE_0_100,
# 100 = open). An empirically comfortable pose (elbow/wrist bent) avoiding the singularity of
# a fully-extended arm; assumes standard calibration. Override per-arm via override_reset_pose.py.
RESET_ORIGIN_DEG: dict[str, float] = {
"shoulder_pan": -4.0,
"shoulder_lift": -103.0,
"elbow_flex": 97.0,
"wrist_flex": 78.0,
"wrist_roll": -65.0,
"gripper": 0.0,
}
def _load_reset_target(reset_pose_file: Path, motor_names: list[str]) -> dict[str, float]:
"""Return reset targets: the saved reset pose if present, else RESET_ORIGIN_DEG."""
if reset_pose_file.exists():
saved = json.loads(reset_pose_file.read_text())
# Fill any missing motors from the fallback dict.
return {name: float(saved.get(name, RESET_ORIGIN_DEG.get(name, 0.0))) for name in motor_names}
return {name: RESET_ORIGIN_DEG.get(name, 0.0) for name in motor_names}
# CloudXR web client URL opened in the headset (Isaac Teleop quick start, step 5).
_CLOUDXR_WEB_CLIENT_URL = "https://nvidia.github.io/IsaacTeleop/client"
# WSS-proxy / self-signed-cert port the operator accepts in-browser before connecting.
_CLOUDXR_WSS_PORT = 48322
# How often to re-print the connection hint while waiting for the headset [s].
_XR_CONNECT_REMINDER_S = 15.0
# Virtual / bridge / USB-gadget interfaces a headset can't reach over the network — skip
# by name prefix (``docker0``, compose ``br-*``, ``veth*``, libvirt ``virbr*``, and the
# Tegra USB device-mode bridge ``l4tbr0``).
_SKIP_IFACE_PREFIXES = ("docker", "br-", "veth", "virbr", "l4tbr")
def _primary_ipv4() -> str | None:
"""The workstation's primary outbound IPv4, via the UDP-socket trick (``connect()`` on a
datagram socket selects the egress interface without sending packets)."""
with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as s:
try:
s.connect(("8.8.8.8", 80))
return s.getsockname()[0]
except OSError:
return None
def _candidate_ipv4s() -> list[tuple[str, str]]:
"""Return ``[(interface, ipv4), ...]`` the headset might reach this workstation at.
Lists each interface's IPv4 via ``psutil`` (dropping loopback, link-local, and the
virtual/bridge interfaces in ``_SKIP_IFACE_PREFIXES``), primary outbound first. Falls
back to just the primary IP when ``psutil`` is unavailable.
"""
primary = _primary_ipv4()
found: list[tuple[str, str]] = []
try:
import psutil
for iface, addrs in psutil.net_if_addrs().items():
if iface.startswith(_SKIP_IFACE_PREFIXES):
continue
for addr in addrs:
if addr.family != socket.AF_INET:
continue
ip = addr.address
if ip.startswith("127.") or ip.startswith("169.254."):
continue
found.append((iface, ip))
except Exception:
if primary:
found.append(("default", primary))
found.sort(key=lambda t: t[1] != primary) # primary outbound interface first
return found
def _print_xr_connect_help() -> None:
"""Print how to connect the headset to this workstation over CloudXR."""
ips = _candidate_ipv4s()
print("\n" + "=" * 76)
print("Connect your XR headset to this workstation over NVIDIA CloudXR:")
print(f" 1. In the headset, open the CloudXR web client: {_CLOUDXR_WEB_CLIENT_URL}")
print(" 2. Enter this workstation's IP address:")
if ips:
for iface, ip in ips:
print(f" {ip:<15} ({iface})")
if len(ips) > 1:
print(" (use the address on the same network as your headset)")
else:
print(" <could not determine — check `hostname -I` / `ip addr`>")
print(f" 3. Accept the self-signed cert at https://<that-ip>:{_CLOUDXR_WSS_PORT}/ , then Connect.")
print("=" * 76 + "\n")
def _wait_for_xr_controller(teleop_device: XRController) -> None:
"""Block until the XR controller is tracked, polling ``get_action()`` and re-printing a
reminder every ``_XR_CONNECT_REMINDER_S``. User-paced; ``Ctrl-C`` aborts (no hard timeout).
"""
_print_xr_connect_help()
print("Waiting for the headset controllers to start streaming… (Ctrl-C to abort)")
last_reminder = time.time()
while True:
teleop_device.get_action() # steps the session; updates is_tracking
if teleop_device.is_tracking:
print("Headset connected — controllers are streaming.")
return
if time.time() - last_reminder >= _XR_CONNECT_REMINDER_S:
print("…still waiting for the headset to connect (Ctrl-C to abort).")
last_reminder = time.time()
time.sleep(1.0 / FPS)
def setup_xr(cfg: LoopConfig, robot, motor_names: list[str]) -> Device:
"""Build the XR controller device bundle (clutch + soft-orientation IK pipeline)."""
kinematics_solver = RobotKinematics(
urdf_path=_ensure_so101_urdf(),
target_frame_name="gripper_frame_link",
joint_names=motor_names,
)
teleop_config = cfg.teleop # XRControllerConfig (selected via --teleop.type=xr_controller)
teleop_device = XRController(teleop_config)
# The clutch (below) turns the raw grip pose into an absolute base-frame ee_pose; this
# pipeline maps it to joint targets: rename -> bounds/rate-limit -> IK.
xr_to_robot_joints_processor = RobotProcessorPipeline[tuple[RobotAction, RobotObservation], RobotAction](
steps=[
MapXRControllerActionToRobotAction(),
# raise_on_jump=False: an over-limit step (e.g. a tracking glitch) is clamped +
# warned instead of raised, since a crash mid-loop would leave the arm uncontrolled.
# z floor 0.0 keeps a stray target above the table; x/y stay at a loose [-1,1]m box.
EEBoundsAndSafety(
end_effector_bounds={"min": [-1.0, -1.0, 0.0], "max": [1.0, 1.0, 1.0]},
max_ee_step_m=MAX_EE_STEP_M,
raise_on_jump=False,
),
# initial_guess_current_joints=False: warm-start from the previous IK solution so
# the joint trajectory stays continuous frame-to-frame.
InverseKinematicsEEToJoints(
kinematics=kinematics_solver,
motor_names=motor_names,
initial_guess_current_joints=False,
orientation_weight=IK_ORIENTATION_WEIGHT,
),
],
to_transition=robot_action_observation_to_transition,
to_output=transition_to_robot_action,
)
# The clutch is built in startup() (after the optional reset slew, seeded from the
# post-slew MEASURED pose) and shared with compute() via nonlocal.
clutch: Clutch | None = None
prev_enabled = False
def startup() -> None:
nonlocal clutch
# Connect and wait for the operator to don the headset BEFORE moving the arm, so the
# reset slew happens while they are watching in VR.
teleop_device.connect()
if not teleop_device.is_connected:
raise ValueError("Teleop is not connected!")
_wait_for_xr_controller(teleop_device)
if cfg.reset_to_origin:
reset_pose_file = Path(RESET_POSE_FILE.format(robot_name=robot.name, robot_id=robot.id))
target = _load_reset_target(reset_pose_file, motor_names)
source = str(reset_pose_file) if reset_pose_file.exists() else "hardcoded defaults"
print(f"Reset target source: {source}")
print(f"Resetting to origin over {cfg.reset_duration:.1f} s…")
slew(robot, motor_names, lambda: target, cfg.reset_duration)
print("Reset complete.")
# Seed the clutch home from the arm's measured pose (FK of the current joints) so the
# first engage is jump-free, whether or not a reset slew ran.
obs0 = robot.get_observation()
q_measured_deg = np.array([float(obs0[f"{name}.pos"]) for name in motor_names], dtype=float)
home_base_T_ee = kinematics_solver.forward_kinematics(q_measured_deg) # noqa: N806
clutch = Clutch(home_base_T_ee)
print("Starting teleop loop. Squeeze and move the controller to teleoperate the robot...")
def compute(robot_obs: RobotObservation | None) -> RobotAction | None:
nonlocal prev_enabled
if clutch is None: # set in startup(), which runs before compute()
raise RuntimeError("compute() called before startup(); the clutch is not initialized")
xr_action = teleop_device.get_action()
grip_pos = np.asarray(xr_action["grip_pos"], dtype=float)
grip_quat = np.asarray(xr_action["grip_quat"], dtype=float)
squeeze = float(xr_action["squeeze"])
trigger = float(xr_action["trigger"])
enabled = squeeze > teleop_config.clutch_threshold
# On the engage edge, latch the clutch home at the arm's MEASURED EE pose (FK of
# the live joints) and the controller origin so the per-frame delta starts at zero.
# Latching the last commanded pose instead would snap the arm back to it at full
# servo speed if the arm moved while disengaged (gravity sag, external contact).
is_engage_frame = enabled and not prev_enabled
if is_engage_frame:
q_measured = np.array([float(robot_obs[f"{name}.pos"]) for name in motor_names], dtype=float)
measured_base_T_ee = kinematics_solver.forward_kinematics(q_measured) # noqa: N806
clutch.engage(grip_pos, grip_quat, measured_base_T_ee=measured_base_T_ee)
# Re-anchor the pipeline state at the measured pose as well: EEBoundsAndSafety's
# rate limiter and the IK warm start otherwise still reference the stale
# pre-disengage command and would fight the fresh home for several frames.
xr_to_robot_joints_processor.reset()
prev_enabled = enabled
# SAFETY GATE: command the robot ONLY while the clutch is engaged; otherwise return
# None so the loop holds the measured joints (releasing the clutch freezes the arm).
if not enabled:
return None
# Rebase the raw grip pose onto the EE, then run the pipeline. closedness = trigger.
ee_pos, ee_quat = clutch.rebase(grip_pos, grip_quat)
ee_action = {
"ee_pose": np.concatenate([ee_pos, ee_quat]).astype(np.float32),
"closedness": trigger,
}
return xr_to_robot_joints_processor((ee_action, robot_obs))
return Device(compute=compute, startup=startup, cleanup=teleop_device.disconnect)
# ============================================================================
# SO-101 leader arm device
# ============================================================================
# Default duration [s] for the startup alignment slew (follower current -> leader first pose).
ALIGN_DURATION_S = 3.0
# How long to wait for the leader plugin to start streaming before aligning / looping.
LEADER_WARMUP_TIMEOUT_S = 20.0
# The plugin converts the leader's servo ticks to radians, so it reuses the serial SO-101
# leader's calibration, stored by lerobot-calibrate under SO101Leader.name == "so_leader".
SO_LEADER_CALIBRATION_NAME = "so_leader"
def _leader_calibration_path(cfg: LoopConfig) -> Path | None:
"""Infer the calibration JSON the launched plugin should read, or None.
Path convention: ``HF_LEROBOT_CALIBRATION / teleoperators / so_leader / {--teleop.id}.json``
(or ``--teleop.calibration_dir`` if set). Returns None (plugin falls back to defaults) when
it does not exist, warning if an id was given, or when no ``--teleop.id`` is set.
"""
if not cfg.teleop.id:
return None
calib_dir = cfg.teleop.calibration_dir or (
HF_LEROBOT_CALIBRATION / TELEOPERATORS / SO_LEADER_CALIBRATION_NAME
)
calib_path = Path(calib_dir) / f"{cfg.teleop.id}.json"
if calib_path.is_file():
return calib_path
print(
f"WARNING: no leader calibration at {calib_path}; the plugin will use built-in defaults. "
f"Calibrate with the serial leader (`lerobot-calibrate --teleop.type=so101_leader "
f"--teleop.id={cfg.teleop.id}`) or the plugin's `calibrate` subcommand."
)
return None
def _wait_for_leader(teleop: SO101LeaderArm, timeout_s: float) -> dict[str, float]:
"""Poll the leader until it streams a live frame; return that frame's ``{joint}.pos``.
Raises ``SystemExit`` if no live frame arrives within ``timeout_s`` (plugin not pushing,
wrong ``--teleop.collection_id``, or CloudXR not up).
"""
print(f"Waiting up to {timeout_s:.0f}s for the so101_leader plugin to stream…")
deadline = time.time() + timeout_s
while time.time() < deadline:
action = teleop.get_action()
if teleop.is_tracking:
print("Leader is streaming.")
return action
time.sleep(1.0 / FPS)
raise SystemExit(
f"FAILED: leader did not stream within {timeout_s:.0f}s. Is the so101_leader plugin "
"running and pushing (check --teleop.collection_id)? Is CloudXR up?"
)
def _maybe_launch_plugin(cfg: LoopConfig) -> subprocess.Popen | None:
"""Spawn the so101_leader plugin if ``--launch_plugin <path>`` was given (after connect())."""
if cfg.launch_plugin is None:
return None
if not Path(cfg.launch_plugin).exists():
raise SystemExit(
f"plugin binary not found: {cfg.launch_plugin} (build it in the IsaacTeleop repo first)"
)
leader_port = cfg.teleop.port # SO101LeaderArmConfig.port, forwarded to the plugin
backend = f"leader on {leader_port}" if leader_port else "synthetic trajectory"
print(f"launching plugin: {cfg.launch_plugin} ({backend})")
# Positional args: [device_path] [collection_id] [calibration_file]. Empty device_path ->
# synthetic backend. Calibration (only real hardware needs it) is appended when a port is set.
argv = [cfg.launch_plugin, leader_port, cfg.teleop.collection_id]
if leader_port:
calib_path = _leader_calibration_path(cfg)
if calib_path is not None:
argv.append(str(calib_path))
print(f" leader calibration: {calib_path}")
# Spawned after connect() so it inherits the CloudXR runtime env (XR_RUNTIME_JSON, ...).
proc = subprocess.Popen(argv)
time.sleep(1.5) # let it create its OpenXR session and start pushing
return proc
def setup_leader(cfg: LoopConfig, robot, motor_names: list[str]) -> Device:
"""Build the SO-101 leader arm device bundle (1:1 joint mirror)."""
teleop_config = cfg.teleop # SO101LeaderArmConfig (selected via --teleop.type=so101_leader)
teleop = SO101LeaderArm(teleop_config)
plugin_proc: subprocess.Popen | None = None
def startup() -> None:
nonlocal plugin_proc
# connect() auto-launches CloudXR (unless opted out); spawn the plugin AFTER so it
# inherits the runtime env. The plugin is reaped in cleanup().
teleop.connect()
plugin_proc = _maybe_launch_plugin(cfg)
if not teleop.is_connected:
raise ValueError("Teleop is not connected!")
# Block until the leader streams a live frame (clear error if it never does).
_wait_for_leader(teleop, LEADER_WARMUP_TIMEOUT_S)
if cfg.align:
print(f"Aligning follower to leader over {cfg.align_duration:.1f}s…")
# Re-read the live leader pose once per step so alpha=1 lands on its current pose
# from a single coherent frame.
def _leader_target() -> dict[str, float]:
leader_now = teleop.get_action()
return {name: float(leader_now[f"{name}.pos"]) for name in motor_names}
slew(robot, motor_names, _leader_target, cfg.align_duration)
print("Alignment complete.")
print(
"Starting joint-mirror loop. Back-drive the leader to teleoperate the follower… (Ctrl-C to stop)"
)
def compute(robot_obs: RobotObservation | None) -> RobotAction | None:
leader_action = teleop.get_action()
# Hold the follower at its measured pose when the leader drops out (stale stream)
# rather than commanding a possibly-old target.
if not teleop.is_tracking:
return None
return leader_action
def cleanup() -> None:
# A plugin-reaping failure must not skip the session disconnect (and vice versa
# the disconnect runs after the plugin stops pushing on it).
try:
if plugin_proc is not None:
plugin_proc.terminate()
try:
plugin_proc.wait(timeout=5)
except subprocess.TimeoutExpired:
plugin_proc.kill()
finally:
teleop.disconnect()
return Device(compute=compute, startup=startup, cleanup=cleanup)
# ============================================================================
# Shared setup
# ============================================================================
def build_device(cfg: LoopConfig) -> tuple:
"""Connect the follower, build the selected Isaac device, and run its pre-loop startup.
Connects the follower FIRST (so the startup slew / clutch-home seed can read live joints),
dispatches on ``--teleop.type``, then runs ``device.startup()`` before returning. On any
failure after ``connect()`` the follower is disconnected so the connection never leaks.
Returns ``(robot, device, motor_names)``.
"""
# Default the CloudXR input profile to this example's default.env unless the user overrode
# it via --teleop.cloudxr_env_file.
if cfg.teleop.cloudxr_env_file is None:
cfg.teleop.cloudxr_env_file = CLOUDXR_ENV_FILE
# SO-101/SO-100 only (both share the SO-101 URDF), reject other followers.
supported_robots = {"so101_follower", "so100_follower"}
if cfg.robot.type not in supported_robots:
raise ValueError(
f"This example only supports SO-101/SO-100 followers ({sorted(supported_robots)}), "
f"but got --robot.type={cfg.robot.type}."
)
# The degree-based pipeline relies on --robot.use_degrees (default True).
robot = make_robot_from_config(cfg.robot)
# Connect FIRST so the startup slew and clutch-home seed can read live joints.
robot.connect()
# Everything after connect() can fail; this runs outside the callers' try/finally, so
# disconnect the follower on any failure to avoid leaking the connection.
device: Device | None = None
try:
# Joint names in action order, read from {name}.pos action features (robot-agnostic).
motor_names = [key.removesuffix(".pos") for key in robot.action_features if key.endswith(".pos")]
if isinstance(cfg.teleop, SO101LeaderArmConfig):
device = setup_leader(cfg, robot, motor_names)
else:
device = setup_xr(cfg, robot, motor_names)
device.startup()
except BaseException:
# Reap a partially-started device, then always disconnect the follower.
if device is not None:
with suppress(Exception):
device.cleanup()
robot.disconnect()
raise
return robot, device, motor_names
# ============================================================================
# Keyboard control
# ============================================================================
def init_keyboard_listener():
"""Recording shortcuts, terminal-first so they work over SSH.
Whenever stdin is a TTY we use the stdlib :class:`TerminalKeyListener` directly rather
than upstream's pynput-first :func:`init_keyboard_listener`, whose global listener would
capture the workstation console instead of this (often SSH) terminal. With no TTY we defer
to upstream (pynput on a GUI, else headless no-op).
"""
if not (sys.stdin is not None and sys.stdin.isatty()):
from lerobot.utils.keyboard_input import init_keyboard_listener as _upstream
return _upstream()
from lerobot.utils.keyboard_input import TerminalKeyListener, apply_recording_control
events = {"exit_early": False, "rerecord_episode": False, "stop_recording": False}
# n/r/q are the arrow/Esc equivalents that survive escape-sequence splitting over laggy
# SSH/VNC links. Case-insensitive so Shift+letter still works.
def on_key(name: str) -> None:
key = name.lower()
if key in ("right", "n"):
apply_recording_control("right", events)
elif key in ("left", "r"):
apply_recording_control("left", events)
elif key in ("esc", "q"):
apply_recording_control("esc", events)
listener = TerminalKeyListener(on_key)
listener.start()
logging.info(
"Keyboard control via terminal — keep this terminal focused: "
"Right/n = end episode early, Left/r = re-record, Esc/q = stop."
)
return listener, events
@@ -1,21 +0,0 @@
# CloudXR device-profile overrides for the Isaac Teleop XR -> SO-101 example.
#
# Passed to isaacteleop's CloudXRLauncher as `env_config` (via
# XRControllerConfig.cloudxr_env_file). Format: KEY=value, one per line; `#`
# comments and blank lines ignored; $VARS / ~ expanded. See
# isaacteleop/cloudxr/env_config.py::_load_env_file.
#
# Runtime-resolved keys (XR_RUNTIME_JSON, XRT_NO_STDIN, NV_CXR_RUNTIME_DIR,
# NV_CXR_OUTPUT_DIR) are reserved and ignored if set here.
# Transport profile the runtime advertises (CloudXR default: auto-webrtc).
# "Quest3" also covers the Pico 4. Other values: auto-native, AppleVisionPro.
NV_DEVICE_PROFILE=Quest3
# Input device discovery channels (both default to true; pinned for clarity).
NV_CXR_ENABLE_PUSH_DEVICES=true
NV_CXR_ENABLE_TENSOR_DATA=true
# Runtime logs to ~/.cloudxr/logs — helps debug connection issues
# (e.g. "Failed to get OpenXR system: -35").
NV_CXR_FILE_LOGGING=true
@@ -1,40 +0,0 @@
#!/usr/bin/env python
# Copyright 2026 NVIDIA Corporation and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""NVIDIA Isaac Teleop teleoperators for LeRobot.
Each input device is an :class:`IsaacTeleopTeleoperator` subclass: :class:`XRController`
(XR/VR controller) and :class:`SO101LeaderArm` (back-drivable SO-101 leader arm) ship today.
"""
from .base import IsaacTeleopTeleoperator
from .clutch import Clutch
from .config_isaac_teleop import IsaacTeleopConfig, SO101LeaderArmConfig, XRControllerConfig
from .teleop_so101_leader_arm import SO101LeaderArm, leader_joints_to_robot_action
from .teleop_xr_controller import XRController
from .xr_controller_processor import MapXRControllerActionToRobotAction
__all__ = [
"Clutch",
"IsaacTeleopConfig",
"IsaacTeleopTeleoperator",
"MapXRControllerActionToRobotAction",
"SO101LeaderArm",
"SO101LeaderArmConfig",
"XRController",
"XRControllerConfig",
"leader_joints_to_robot_action",
]
@@ -1,282 +0,0 @@
#!/usr/bin/env python
# Copyright 2026 NVIDIA Corporation and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Shared base for NVIDIA Isaac Teleop-backed LeRobot teleoperators.
Isaac Teleop is a multi-modal framework: a single ``TeleopSession`` can be driven by
XR controllers, hand tracking, Manus gloves, etc. Each modality is a
:class:`Teleoperator` subclass in its own ``teleop_<device>.py``.
:class:`IsaacTeleopTeleoperator` owns what those devices share — the session
lifecycle, the per-step staleness/worker-health guard, and the no-op calibration
tracking devices need. A concrete device implements :meth:`_build_pipeline` (its
retargeting graph) and :meth:`get_action` (usually via :meth:`_step`).
``isaacteleop`` is an optional NVIDIA dependency (install instructions in the example's
``README.md``); its imports are guarded behind an availability check at module top, so this
module imports without it and constructing a device fails fast with install instructions.
"""
from __future__ import annotations
import abc
import logging
import os
from collections.abc import Mapping
from pathlib import Path
from typing import TYPE_CHECKING, Any
from lerobot.teleoperators.teleoperator import Teleoperator
from lerobot.utils.import_utils import is_package_available
from .config_isaac_teleop import IsaacTeleopConfig
_isaacteleop_available = is_package_available("isaacteleop")
if TYPE_CHECKING or _isaacteleop_available:
from isaacteleop.cloudxr import CloudXRLauncher
from isaacteleop.retargeting_engine.interface import (
ExecutionEvents,
ExecutionState,
GraphExecutable,
RetargeterIO,
)
from isaacteleop.teleop_session_manager import TeleopSession, TeleopSessionConfig
else:
CloudXRLauncher = None
ExecutionEvents = None
ExecutionState = None
GraphExecutable = None
RetargeterIO = None
TeleopSession = None
TeleopSessionConfig = None
logger = logging.getLogger(__name__)
# Gripper closedness [0, 1] -> SO-101 follower motor units [0, 100] (RANGE_0_100, 100 = OPEN).
# Shared by the XR processor and leader device, which invert via ``pos = (1 - c) * SCALE``.
_GRIPPER_MOTOR_SCALE = 100.0
def _require_isaacteleop() -> None:
"""Fail fast with install pointers when the optional ``isaacteleop`` package is missing."""
if not _isaacteleop_available:
raise ImportError(
"The 'isaacteleop' package is required for Isaac Teleop devices but is not "
"installed. See examples/isaac_teleop_to_so101/README.md for install instructions."
)
class IsaacTeleopTeleoperator(Teleoperator):
"""Abstract base for teleoperators backed by an Isaac Teleop ``TeleopSession``.
Owns the session lifecycle and the per-step health guard; subclasses supply
:meth:`_build_pipeline` and :meth:`get_action`.
"""
config_class = IsaacTeleopConfig
def __init__(self, config: IsaacTeleopConfig):
_require_isaacteleop()
super().__init__(config)
self.config: IsaacTeleopConfig = config
self._session: TeleopSession | None = None
self._cloudxr_launcher: CloudXRLauncher | None = None
# ------------------------------------------------------------------
# Pipeline construction (device override point)
# ------------------------------------------------------------------
@abc.abstractmethod
def _build_pipeline(self) -> GraphExecutable:
"""Build this device's retargeting pipeline (the ``GraphExecutable`` for
``TeleopSessionConfig.pipeline``). Called once in :meth:`connect`; its output
keys must match what :meth:`get_action` unpacks.
"""
raise NotImplementedError
# ------------------------------------------------------------------
# Lifecycle (shared)
# ------------------------------------------------------------------
@property
def is_connected(self) -> bool:
return self._session is not None
@property
def is_calibrated(self) -> bool:
return True # Tracking devices are self-calibrating.
def calibrate(self) -> None:
pass
def configure(self) -> None:
pass
def connect(self, calibrate: bool = True) -> None:
"""Auto-launch the CloudXR runtime (unless opted out) and open the session.
The CloudXR launch blocks ~30s and, on the first run, prompts on stdin for the
EULA (accept once via ``python -m isaacteleop.cloudxr --accept-eula``). Opt out
when CloudXR runs externally via ``config.auto_launch_cloudxr=False`` or
``LEROBOT_CLOUDXR_SKIP_AUTOLAUNCH=1`` (env var wins).
"""
if self._session is not None:
raise RuntimeError("Already connected. Call disconnect() first.")
self._ensure_cloudxr_runtime()
try:
pipeline = self._build_pipeline()
session_config = TeleopSessionConfig(app_name=self.config.app_name, pipeline=pipeline)
self._session = TeleopSession(session_config)
self._session.__enter__()
except Exception:
self._session = None
try:
self._stop_cloudxr_runtime()
except Exception:
logger.exception("Failed to stop CloudXR runtime during connect() rollback")
raise
logger.info("Isaac Teleop session started: %s", self.config.app_name)
def disconnect(self) -> None:
try:
if self._session is not None:
# Null the handle BEFORE __exit__: even a failed session teardown must not
# wedge the device as is_connected (blocking every later connect/disconnect).
session = self._session
self._session = None
session.__exit__(None, None, None)
logger.info("Isaac Teleop session ended")
finally:
# Reap the CloudXR runtime even if session teardown raised, and even if no
# session was ever established (e.g. the launcher came up but session creation
# failed before this point); a no-op when we never launched CloudXR (opt-out /
# externally-owned runtime), so we never stop a runtime we don't own.
self._stop_cloudxr_runtime()
# ------------------------------------------------------------------
# CloudXR runtime (shared)
# ------------------------------------------------------------------
def _ensure_cloudxr_runtime(self) -> None:
"""Auto-launch the CloudXR runtime once, unless opted out.
Idempotent (no-op once the launcher is up). ``LEROBOT_CLOUDXR_SKIP_AUTOLAUNCH``
is checked first and wins over ``config.auto_launch_cloudxr``. Constructing
:class:`CloudXRLauncher` mutates the process env (``XR_RUNTIME_JSON`` etc.) and
blocks until the runtime is ready or raises :class:`RuntimeError`.
"""
if self._cloudxr_launcher is not None:
return
if os.environ.get("LEROBOT_CLOUDXR_SKIP_AUTOLAUNCH", "").strip() == "1":
logger.info(
"LEROBOT_CLOUDXR_SKIP_AUTOLAUNCH=1 set; skipping CloudXR auto-launch "
"(assuming CloudXR is already running externally)"
)
return
if not self.config.auto_launch_cloudxr:
logger.info(
"config.auto_launch_cloudxr is False; skipping CloudXR auto-launch "
"(assuming CloudXR is already running externally)"
)
return
logger.info("Launching CloudXR runtime (first run may prompt for EULA and take ~30s)...")
self._cloudxr_launcher = CloudXRLauncher(
install_dir=str(Path.home() / ".cloudxr"),
env_config=self.config.cloudxr_env_file,
accept_eula=False,
)
def _stop_cloudxr_runtime(self) -> None:
"""Stop the auto-launched CloudXR runtime, if any.
Clean stop nulls the handle. On :class:`RuntimeError` the handle is RETAINED so
the launcher's ``atexit`` hook owns the retry — a later :meth:`connect` then
treats the retained runtime as still up and will not relaunch.
"""
if self._cloudxr_launcher is None:
return
try:
self._cloudxr_launcher.stop()
except RuntimeError:
logger.warning("CloudXR runtime could not be terminated; handle retained for atexit cleanup")
else:
self._cloudxr_launcher = None
logger.info("CloudXR runtime stopped")
def send_feedback(self, feedback: dict[str, Any]) -> None:
pass # Haptic feedback not yet implemented.
# ------------------------------------------------------------------
# Stepping (shared)
# ------------------------------------------------------------------
def _running_events(self) -> ExecutionEvents:
"""Constant ``RUNNING`` ``ExecutionEvents`` for a device with no clutch lifecycle.
Keeps the stream flowing; ``reset`` stays ``False``. A clutched device that needs
a real lifecycle should build its own ``ExecutionEvents`` instead.
"""
return ExecutionEvents(execution_state=ExecutionState.RUNNING, reset=False)
def _step(
self,
*,
execution_events: ExecutionEvents | None = None,
external_inputs: Mapping[str, Any] | None = None,
) -> RetargeterIO:
"""Step the session once and return the raw pipeline outputs.
Applies the shared guard: re-raises a retargeting-worker exception and warns on a
stale frame. Subclasses call this from :meth:`get_action`.
Args:
execution_events: The ``ExecutionEvents`` driving the session this frame.
Devices with a lifecycle (clutch) MUST pass this every frame — when
``None``, ``TeleopSession.step`` auto-fires ``RUNNING`` (the clutch would
latch immediately and never stop).
external_inputs: Per-step inputs (e.g. a static ``base_T_anchor``) in the
``{leaf_node_name: {output_port_name: TensorGroup}}`` shape ``step`` expects.
Raises:
RuntimeError: If not connected, or if the retargeting worker raised.
"""
if self._session is None:
raise RuntimeError("Not connected. Call connect() first.")
result = self._session.step(
execution_events=execution_events,
external_inputs=external_inputs,
)
info = self._session.last_step_info
if info is not None:
if info.worker_exception is not None:
raise RuntimeError(
"Isaac Teleop retargeting worker raised an exception"
) from info.worker_exception
if info.frame_deadline_miss:
logger.warning(
"Isaac Teleop frame deadline miss (returned_age_frames=%s)",
info.returned_age_frames,
)
return result
@@ -1,102 +0,0 @@
#!/usr/bin/env python
# Copyright 2026 NVIDIA Corporation and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Engage-relative clutch for the XR -> SO-101 teleop loop.
Turns the raw controller grip pose into an absolute base-frame EE target, so the XR
device can stay a thin raw-pose reader. Pure numpy + the local ``Rotation`` helper (no
``isaacteleop``), so it is unit-testable without the XR runtime.
"""
from __future__ import annotations
import numpy as np
from lerobot.utils.rotation import Rotation
class Clutch:
"""Engage-relative clutch for both position AND orientation.
Latch an origin on engage, then track the base-frame delta from it, applied
independently to position and orientation. State:
- ``_last_commanded_pos`` / ``_last_commanded_rot``: last commanded EE pose; held
while disengaged so the arm freezes where it was left.
- ``_home_pos`` / ``_home_rot``: latched on engage — the EE pose the delta applies to.
The position comes from the arm's MEASURED pose when the caller provides it (so an
arm that moved while disengaged is not snapped back to a stale command); the
orientation always comes from the last commanded rotation (see NOTE below).
- ``_origin_pos`` / ``_origin_rot``: latched on engage — the controller pose the delta
is measured against.
Each engaged frame :meth:`rebase` returns::
pos = home_pos + (grip_pos - origin_pos) # 1:1 controller -> EE translation
rot = (R_ctrl @ R_origin ^ -1) @ R_home # base-frame delta, left-composed
On the engage edge the output is exactly the home pose (no teleport). The orientation
delta is left-composed (base frame), so hand rotation about base Z maps to EE rotation
about base Z. A re-clutch latches a fresh home/origin.
NOTE: ``_home_rot`` is the last *commanded* orientation even when the measured pose is
supplied: the 5-DOF SO-101 tracks orientation only softly, so its measured wrist
orientation persistently differs from the command, and latching the measurement would
inject that offset into the commanded signal on every re-clutch. Position has no such
tracking gap, and there latching the measurement is what prevents the snap-back.
"""
def __init__(self, home_base_T_ee: np.ndarray): # noqa: N803
# Seed the held pose from the arm's measured startup EE pose so the first
# engage latches home there (no jump on the first squeeze).
home = np.asarray(home_base_T_ee, dtype=float)
self._last_commanded_pos = home[:3, 3].copy()
self._last_commanded_rot = Rotation.from_matrix(home[:3, :3])
self._home_pos = self._last_commanded_pos.copy()
self._home_rot = self._last_commanded_rot
self._origin_pos = np.zeros(3, dtype=float)
self._origin_rot = Rotation.from_quat(np.array([0.0, 0.0, 0.0, 1.0]))
def engage(
self,
grip_pos: np.ndarray,
grip_quat: np.ndarray,
measured_base_T_ee: np.ndarray | None = None, # noqa: N803
) -> None:
"""Latch the engage home (where the arm is now) and controller origin.
Pass ``measured_base_T_ee`` (FK of the measured joints) so the home POSITION is
where the arm physically is — if the arm moved while disengaged (gravity sag,
external contact), latching the stale last-commanded position would make the
first engaged frame command a full-speed jump back to it. The home ORIENTATION
always stays the last commanded one (see the class NOTE).
"""
if measured_base_T_ee is not None:
self._home_pos = np.asarray(measured_base_T_ee, dtype=float)[:3, 3].copy()
else:
self._home_pos = self._last_commanded_pos.copy()
self._home_rot = self._last_commanded_rot
self._origin_pos = np.asarray(grip_pos, dtype=float).copy()
self._origin_rot = Rotation.from_quat(np.asarray(grip_quat, dtype=float))
def rebase(self, grip_pos: np.ndarray, grip_quat: np.ndarray) -> tuple[np.ndarray, np.ndarray]:
"""Return the absolute base-frame EE target ``(pos [m], quat [xyzw])`` for this frame."""
pos = self._home_pos + (np.asarray(grip_pos, dtype=float) - self._origin_pos)
rot_ctrl = Rotation.from_quat(np.asarray(grip_quat, dtype=float))
rot = (rot_ctrl * self._origin_rot.inv()) * self._home_rot
self._last_commanded_pos = pos.copy()
self._last_commanded_rot = rot
return pos, rot.as_quat()
@@ -1,135 +0,0 @@
#!/usr/bin/env python
# Copyright 2026 NVIDIA Corporation and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Configuration dataclasses for NVIDIA Isaac Teleop-backed teleoperators.
:class:`IsaacTeleopConfig` holds the shared fields; each device adds its own subclass
(e.g. :class:`XRControllerConfig`, :class:`SO101LeaderArmConfig`).
"""
from __future__ import annotations
from dataclasses import dataclass, field
from typing import ClassVar
from lerobot.teleoperators.config import TeleoperatorConfig
@dataclass(kw_only=True)
class IsaacTeleopConfig(TeleoperatorConfig):
"""Shared config for all Isaac Teleop-backed teleoperators.
Uses its own draccus ``_choice_registry`` (decoupled from the global
:class:`TeleoperatorConfig` one) so ``--teleop.type`` on a field typed
``IsaacTeleopConfig`` resolves against ONLY the Isaac devices — letting them claim
short names (``xr_controller``, ``so101_leader``) without colliding with the global
registry. These devices are selected by the example scripts, not routed through
``make_teleoperator_from_config``.
"""
_choice_registry: ClassVar[dict] = {}
app_name: str = "LeTeleop"
"""Application name for the OpenXR / Isaac Teleop session."""
auto_launch_cloudxr: bool = True
"""Auto-launch the CloudXR runtime on :meth:`connect`. Set ``False`` (or export
``LEROBOT_CLOUDXR_SKIP_AUTOLAUNCH=1``, which wins) when CloudXR runs externally.
"""
cloudxr_env_file: str | None = None
"""Optional CloudXR device-profile ``.env`` (an INPUT profile selecting the headset
transport) passed to ``CloudXRLauncher``. ``None`` keeps the default auto-WebRTC profile.
"""
# Static rebase from the OpenXR controller anchor frame (X=Right, Y=Up, Z=Backward) into the
# robot base frame (X=Forward, Y=Left, Z=Up). A proper rotation (det=+1): controller motion
# forward -> robot +X, right -> robot -Y (i.e. rightward), up -> robot +Z.
_DEFAULT_BASE_T_ANCHOR: list[list[float]] = [
[0.0, 0.0, -1.0, 0.0],
[-1.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 1.0],
]
@IsaacTeleopConfig.register_subclass("xr_controller")
@dataclass(kw_only=True)
class XRControllerConfig(IsaacTeleopConfig):
"""Config for Isaac Teleop XR (VR) controller teleoperation.
Exposes the raw base-frame grip pose, squeeze, and trigger via ``ControllersSource``.
No retargeters: the clutch and gripper mapping live in the owning loop.
"""
hand_side: str = "right"
"""Which controller hand to use: ``"left"`` or ``"right"``. A plain ``str`` (validated in
``__post_init__``) because draccus cannot decode ``Literal``-typed fields from the CLI."""
clutch_threshold: float = 0.5
"""Squeeze value above which the owning loop's clutch engages (held-to-enable). The
device reports only the raw squeeze; the threshold is applied by the loop."""
base_T_anchor: list[list[float]] = field( # noqa: N815 (frameA_T_frameB transform-matrix convention)
# Fresh copy per instance: returning the module-level list itself would alias one
# mutable matrix across every config.
default_factory=lambda: [row.copy() for row in _DEFAULT_BASE_T_ANCHOR]
)
"""Static 4x4 [row-major] transform rebasing the OpenXR controller anchor frame into
the robot base frame. Defaults to OpenXR (X=Right, Y=Up, Z=Backward) -> robot
(X=Forward, Y=Left, Z=Up). Plain nested lists so the config stays serializable.
"""
def __post_init__(self):
if self.hand_side not in ("left", "right"):
raise ValueError(f"hand_side must be 'left' or 'right', got {self.hand_side!r}")
# Provisional gripper open/close endpoints [rad], normalizing the streamed gripper angle
# into the follower's RANGE_0_100 jaw target. Derived from the so101_leader plugin README's
# example calibration (home_ticks=2048, range 2000..3000; angle = (ticks-home)*2*pi/4096).
_DEFAULT_GRIPPER_OPEN_RAD = -0.074
_DEFAULT_GRIPPER_CLOSE_RAD = 1.460
@IsaacTeleopConfig.register_subclass("so101_leader")
@dataclass(kw_only=True)
class SO101LeaderArmConfig(IsaacTeleopConfig):
"""Config for an Isaac Teleop SO-101 *leader arm* (generic joint-space device).
Mirrors the leader's joint angles 1:1 onto a follower SO-101. The leader state is
streamed in radians by the native ``so101_leader`` plugin and read via a
``JointStateSource``; the device converts arm joints to degrees and the gripper to the
follower's RANGE_0_100 jaw target (no IK/clutch/retargeter on the LeRobot side).
"""
port: str = ""
"""Serial port of the physical LEADER arm (e.g. ``/dev/ttyACM1``), forwarded to the
plugin (which reads the servos) when the example launches it. Empty -> the plugin runs
its synthetic trajectory."""
collection_id: str = "so101_leader"
"""Tensor collection id the leader plugin pushes on; must match the running
``so101_leader`` plugin (its second positional arg, default ``"so101_leader"``)."""
gripper_open_rad: float = _DEFAULT_GRIPPER_OPEN_RAD
"""Leader gripper angle [rad] at fully OPEN -> follower jaw 100. Provisional default;
set from the plugin's ``calibrate`` subcommand. See ``_DEFAULT_GRIPPER_OPEN_RAD``."""
gripper_close_rad: float = _DEFAULT_GRIPPER_CLOSE_RAD
"""Leader gripper angle [rad] at fully CLOSED -> follower jaw 0. Provisional default;
set from the plugin's ``calibrate`` subcommand. See ``_DEFAULT_GRIPPER_CLOSE_RAD``."""
@@ -1,186 +0,0 @@
#!/usr/bin/env python
# Copyright 2026 NVIDIA Corporation and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""SO-101 leader-arm device for NVIDIA Isaac Teleop, exposed to LeRobot.
The leader is a back-drivable SO-101 whose six joint angles are streamed (in radians) by
the native ``so101_leader`` plugin; this device reads them via a ``JointStateSource`` and
converts them into follower-ready ``{joint}.pos``. Same kinematics as the follower, so it
needs no retargeting — a 1:1 joint mirror, direct joint drive.
Units (converted in the device so the output is always follower-valid):
* arm joints: ``rad2deg`` — correct only if the leader's calibrated zero and the follower's
homing map to the same physical zero (the standard same-hardware assumption).
* gripper: normalized from ``[gripper_open_rad, gripper_close_rad]`` to RANGE_0_100.
``isaacteleop`` imports are guarded behind the availability flag so this module — and the
pure :func:`leader_joints_to_robot_action` converter — import without it (construction
fails fast via the base class).
"""
from __future__ import annotations
from typing import TYPE_CHECKING
import numpy as np
from lerobot.types import RobotAction
from .base import _GRIPPER_MOTOR_SCALE, IsaacTeleopTeleoperator, _isaacteleop_available
from .config_isaac_teleop import SO101LeaderArmConfig
if TYPE_CHECKING or _isaacteleop_available:
from isaacteleop.retargeting_engine.deviceio_source_nodes import JointStateSource
from isaacteleop.retargeting_engine.interface import OutputCombiner
else:
JointStateSource = None
OutputCombiner = None
# Canonical SO-101 DOF names and order — matches the plugin stream and the follower's motor
# order. Passed to the ``JointStateSource`` as its output layout; the source maps by name and
# :func:`_joints_group_to_rad` reads back by name, so a layout mismatch can't mislabel a DOF.
SO101_LEADER_JOINTS = [
"shoulder_pan",
"shoulder_lift",
"elbow_flex",
"wrist_flex",
"wrist_roll",
"gripper",
]
def leader_joints_to_robot_action(
joints_rad: dict[str, float],
*,
gripper_joint: str,
gripper_open_rad: float,
gripper_close_rad: float,
) -> RobotAction:
"""Convert streamed leader joint angles [rad] to follower-ready ``{joint}.pos``.
Pure (no ``isaacteleop``, no I/O). Iteration follows ``joints_rad`` insertion order, so
pass it in :data:`SO101_LEADER_JOINTS` order for a stable layout. Arm joints are
converted ``rad2deg``; ``gripper_joint`` is normalized from
``[gripper_open_rad, gripper_close_rad]`` to RANGE_0_100 (clipped).
"""
action: RobotAction = {}
span = gripper_close_rad - gripper_open_rad
for name, rad in joints_rad.items():
if name == gripper_joint:
# Closedness c=0 at open, c=1 at closed; invert to the follower's 100=open jaw.
closedness = 0.0 if span == 0.0 else (rad - gripper_open_rad) / span
closedness = min(1.0, max(0.0, closedness))
action[f"{name}.pos"] = (1.0 - closedness) * _GRIPPER_MOTOR_SCALE
else:
action[f"{name}.pos"] = float(np.rad2deg(rad))
return action
def _joints_group_to_rad(joints) -> dict[str, float]:
"""Read a ``JointStateSource`` output group into ``{joint_name: angle [rad]}``.
Pure (duck-typed on the group). The group is positional but each slot carries its joint
name in ``group.group_type.types``; we key off those names (not a positional index) so a
layout mismatch surfaces as a wrong/missing key here rather than a mislabeled DOF.
"""
names = [t.name for t in joints.group_type.types]
return {name: float(joints[i]) for i, name in enumerate(names)}
class SO101LeaderArm(IsaacTeleopTeleoperator):
"""SO-101 leader-arm teleoperator (joint-space), direct joint mirror to the follower.
Reads the six joint angles off a single ``JointStateSource`` each frame; no retargeter,
no clutch. When the leader is not streaming, :meth:`get_action` returns the held-last
joints and :attr:`is_tracking` is ``False`` so the owning loop can hold the follower.
"""
config_class = SO101LeaderArmConfig
name = "isaac_teleop_so101_leader"
def __init__(self, config: SO101LeaderArmConfig):
super().__init__(config)
self.config: SO101LeaderArmConfig = config
# Held-last joint angles [rad], seeded at zero (URDF/home pose) so the first frames
# before the plugin starts pushing read as the home pose, not garbage.
self._last_joints_rad: dict[str, float] = dict.fromkeys(SO101_LEADER_JOINTS, 0.0)
# Whether the most recent get_action() read live leader data (vs held-last).
self._is_tracking = False
# ------------------------------------------------------------------
# Pipeline construction
# ------------------------------------------------------------------
def _build_pipeline(self) -> OutputCombiner:
"""Build the joint-mirror pipeline: a single ``JointStateSource`` leaf that converts
the raw stream into a name-keyed joint group. No retargeter (shared kinematics)."""
source = JointStateSource(
name="so101_leader",
collection_id=self.config.collection_id,
joint_names=SO101_LEADER_JOINTS,
)
return OutputCombiner({"joints": source.output(JointStateSource.JOINTS)})
# ------------------------------------------------------------------
# Action features
# ------------------------------------------------------------------
@property
def action_features(self) -> dict[str, type]:
# Matches the serial SOLeader's action features so this is a drop-in joint-space
# leader: one float `{joint}.pos` per DOF, sendable straight to an SO-101 follower.
return {f"{name}.pos": float for name in SO101_LEADER_JOINTS}
@property
def feedback_features(self) -> dict[str, type]:
return {}
@property
def is_tracking(self) -> bool:
"""Whether the last :meth:`get_action` read live leader data (vs held-last)."""
return self._is_tracking
# ------------------------------------------------------------------
# Action extraction
# ------------------------------------------------------------------
def get_action(self) -> RobotAction:
"""Step the session and return the leader joints as follower-ready ``{joint}.pos``.
When the leader is streaming, the live angles are cached and converted; otherwise the
held-last angles are reused and :attr:`is_tracking` is set ``False``.
"""
result = self._step(execution_events=self._running_events())
joints = result["joints"]
# The JointStateSource output is Optional: absent (is_none) when the device is
# inactive. Treat that as "not tracking" and reuse the held-last angles.
self._is_tracking = not getattr(joints, "is_none", False)
if self._is_tracking:
try:
self._last_joints_rad = _joints_group_to_rad(joints)
except (AttributeError, IndexError, KeyError, TypeError, ValueError):
# A partially-populated / malformed group on an odd frame: keep held-last, but
# report it as not-tracking so the loop holds the follower rather than trusting it.
self._is_tracking = False
return leader_joints_to_robot_action(
self._last_joints_rad,
gripper_joint="gripper",
gripper_open_rad=self.config.gripper_open_rad,
gripper_close_rad=self.config.gripper_close_rad,
)
@@ -1,204 +0,0 @@
#!/usr/bin/env python
# Copyright 2026 NVIDIA Corporation and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""XR (VR) controller device for NVIDIA Isaac Teleop, exposed to LeRobot.
A deliberately thin reader: exposes the raw controller grip pose off
``ControllersSource`` (statically rebased into the robot base frame by
``ControllerTransform``), plus squeeze and trigger. No retargeters and no clutch —
the clutch rebasing and gripper mapping live downstream in the owning loop, so this
device is stateless across frames.
``isaacteleop`` imports are guarded behind the availability flag so this module imports
without it (construction fails fast via the base class).
"""
from __future__ import annotations
from typing import TYPE_CHECKING, Any
import numpy as np
from lerobot.types import RobotAction
from .base import IsaacTeleopTeleoperator, _isaacteleop_available
from .config_isaac_teleop import XRControllerConfig
if TYPE_CHECKING or _isaacteleop_available:
from isaacteleop.retargeting_engine.deviceio_source_nodes import ControllersSource
from isaacteleop.retargeting_engine.interface import OutputCombiner, TensorGroup, ValueInput
from isaacteleop.retargeting_engine.tensor_types import TransformMatrix
from isaacteleop.retargeting_engine.tensor_types.indices import ControllerInputIndex
else:
ControllersSource = None
OutputCombiner = None
TensorGroup = None
ValueInput = None
TransformMatrix = None
ControllerInputIndex = None
# Source-node name for the static base_T_anchor rebase input fed via
# ``TeleopSession.step(external_inputs=...)`` each frame.
_BASE_T_ANCHOR_INPUT = "base_T_anchor"
class XRController(IsaacTeleopTeleoperator):
"""Raw XR controller grip-pose teleoperator (base-frame), no retargeters.
Reads the raw grip pose + squeeze + trigger off a ``ControllersSource`` rebased into
the robot base frame. :meth:`get_action` returns the absolute base-frame grip pose
untouched; the owning loop owns the clutch and gripper mapping.
"""
config_class = XRControllerConfig
name = "isaac_teleop_controller"
def __init__(self, config: XRControllerConfig):
super().__init__(config)
self.config: XRControllerConfig = config
# Constant base_T_anchor input, built once in connect() (a TensorGroup is heavy and
# isaacteleop-backed) and reused every step.
self._external_inputs: dict[str, Any] | None = None
# Whether the last get_action() read a tracked controller; the owning loop polls this
# to wait for the operator to connect before driving the arm.
self._is_tracking = False
# ------------------------------------------------------------------
# Pipeline construction
# ------------------------------------------------------------------
def _build_pipeline(self) -> OutputCombiner:
"""Build the raw-grip-pose pipeline: a ``ControllersSource`` rebased into the base
frame by ``ControllerTransform``, exposed verbatim as ``"controller"``. No retargeters.
"""
side = self.config.hand_side
controller_key = f"controller_{side}"
controllers = ControllersSource(name="controllers")
# Static base_T_anchor rebase fed via external_inputs each step.
xform = ValueInput(_BASE_T_ANCHOR_INPUT, TransformMatrix())
transformed = controllers.transformed(xform.output("value"))
ctrl = transformed.output(controller_key)
return OutputCombiner({"controller": ctrl})
def _build_external_inputs(self) -> dict[str, Any]:
"""Materialize the constant ``base_T_anchor`` external input (once, in connect)."""
tg = TensorGroup(TransformMatrix())
tg[0] = np.asarray(self.config.base_T_anchor, dtype=np.float32)
return {_BASE_T_ANCHOR_INPUT: {"value": tg}}
def connect(self, calibrate: bool = True) -> None:
super().connect(calibrate=calibrate)
try:
self._external_inputs = self._build_external_inputs()
except Exception:
# Roll the session/runtime back so a failed connect() leaves no half-state
# (a live session behind a raised connect would leak the CloudXR runtime).
self.disconnect()
raise
# ------------------------------------------------------------------
# Action features
# ------------------------------------------------------------------
@property
def action_features(self) -> dict:
return {
"grip_pos": {
"dtype": "float32",
"shape": (3,),
"names": {"x": 0, "y": 1, "z": 2},
},
"grip_quat": {
"dtype": "float32",
"shape": (4,),
"names": {"qx": 0, "qy": 1, "qz": 2, "qw": 3},
},
# ``get_action`` returns scalars for these two, so the advertised
# shape is () (0-d) to stay consistent with the returned values.
"squeeze": {
"dtype": "float32",
"shape": (),
"names": None,
},
"trigger": {
"dtype": "float32",
"shape": (),
"names": None,
},
}
@property
def feedback_features(self) -> dict:
return {}
@property
def is_tracking(self) -> bool:
"""Whether the last :meth:`get_action` read a tracked controller. ``False`` until the
headset is connected over CloudXR and its controllers are live; the owning loop polls
it to wait for the operator before commanding the arm."""
return self._is_tracking
# ------------------------------------------------------------------
# Action extraction
# ------------------------------------------------------------------
def get_action(self) -> RobotAction:
"""Step the session and return the raw base-frame grip pose.
Reads the grip pose + squeeze + trigger off the transformed controller stream (with
the constant ``base_T_anchor`` rebase). When the controller is not tracked, returns
identity pose and squeeze/trigger = 0.0 so the owning loop freezes the arm.
Returns:
``{"grip_pos": (3,) [m], "grip_quat": (4,) [qx,qy,qz,qw], "squeeze": float,
"trigger": float}`` — pose in the robot base frame; squeeze/trigger in ``[0, 1]``.
"""
result = self._step(execution_events=self._running_events(), external_inputs=self._external_inputs)
# Optional controller group is None until the headset is connected and its controllers
# are live; expose that as is_tracking so the loop can wait before driving the arm.
controller = result["controller"]
grip_pos = np.zeros(3, dtype=np.float32)
grip_quat = np.array([0.0, 0.0, 0.0, 1.0], dtype=np.float32)
squeeze = 0.0
trigger = 0.0
self._is_tracking = not getattr(controller, "is_none", False)
if self._is_tracking:
# Read ALL four fields into locals before committing any of them: a failure on a
# partially-populated frame must not mix live values with the safe defaults (a
# live squeeze paired with a defaulted trigger=0.0 would keep the clutch engaged
# while commanding the gripper fully open, dropping whatever is grasped). On
# failure the defaults stand untouched and the frame reports not-tracked.
try:
pos = np.asarray(controller[ControllerInputIndex.GRIP_POSITION], dtype=np.float32)
quat = np.asarray(controller[ControllerInputIndex.GRIP_ORIENTATION], dtype=np.float32)
squeeze_val = float(controller[ControllerInputIndex.SQUEEZE_VALUE])
trigger_val = float(controller[ControllerInputIndex.TRIGGER_VALUE])
except (IndexError, KeyError, TypeError, ValueError):
self._is_tracking = False
else:
grip_pos, grip_quat = pos, quat
squeeze, trigger = squeeze_val, trigger_val
return {
"grip_pos": grip_pos,
"grip_quat": grip_quat,
"squeeze": squeeze,
"trigger": trigger,
}
@@ -1,87 +0,0 @@
#!/usr/bin/env python
# Copyright 2026 NVIDIA Corporation and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Processor step that maps XR controller actions to robot EE targets.
Analogous to ``MapPhoneActionToRobotAction``, this bridges the clutch-rebased EE pose to
the IK pipeline's input contract (``EEBoundsAndSafety`` -> ``InverseKinematicsEEToJoints``).
Pure (no ``isaacteleop``), so it is unit-testable without the XR runtime.
"""
from __future__ import annotations
from dataclasses import dataclass
from lerobot.configs.types import FeatureType, PipelineFeatureType, PolicyFeature
from lerobot.processor import ProcessorStepRegistry, RobotActionProcessorStep
from lerobot.types import RobotAction
from lerobot.utils.rotation import Rotation
from .base import _GRIPPER_MOTOR_SCALE
@ProcessorStepRegistry.register("map_xr_controller_action_to_robot_action")
@dataclass
class MapXRControllerActionToRobotAction(RobotActionProcessorStep):
"""Maps an absolute base-frame EE pose + gripper closedness to the IK input contract.
Pure, stateless rename (the owning loop's clutch already produced the absolute base-frame
target). Each frame it writes:
- ``ee.x/y/z`` = ``ee_pose[:3]`` (position [m]);
- ``ee.wx/wy/wz`` = rotvec of ``ee_pose[3:7]`` (orientation; the IK tracks it softly at a
small ``orientation_weight`` on the 5-DOF SO-101);
- ``ee.gripper_pos`` = ``(1 - closedness) * _GRIPPER_MOTOR_SCALE`` (jaw target [0, 100],
RANGE_0_100 where 100 = open, so closedness is inverted).
Input keys: ``ee_pose`` ``(7,)`` ``[x,y,z,qx,qy,qz,qw]``, ``closedness`` float in [0, 1].
"""
def action(self, action: RobotAction) -> RobotAction:
ee_pose = action.pop("ee_pose")
closedness = float(action.pop("closedness"))
action["ee.x"] = float(ee_pose[0])
action["ee.y"] = float(ee_pose[1])
action["ee.z"] = float(ee_pose[2])
# Orientation target as a rotvec (quat [qx,qy,qz,qw] -> axis-angle); the IK
# consumes ee.w* as a rotvec and tracks it with orientation_weight.
rotvec = Rotation.from_quat(ee_pose[3:7]).as_rotvec()
action["ee.wx"] = float(rotvec[0])
action["ee.wy"] = float(rotvec[1])
action["ee.wz"] = float(rotvec[2])
# Inverted: closedness c=1 (closed) -> 0, c=0 (open) -> 100 (SO-101 calibration).
action["ee.gripper_pos"] = (1.0 - closedness) * _GRIPPER_MOTOR_SCALE
return action
def transform_features(
self, features: dict[PipelineFeatureType, dict[str, PolicyFeature]]
) -> dict[PipelineFeatureType, dict[str, PolicyFeature]]:
for feat in ["ee_pose", "closedness"]:
features[PipelineFeatureType.ACTION].pop(feat, None)
for feat in [
"ee.x",
"ee.y",
"ee.z",
"ee.wx",
"ee.wy",
"ee.wz",
"ee.gripper_pos",
]:
features[PipelineFeatureType.ACTION][feat] = PolicyFeature(type=FeatureType.ACTION, shape=(1,))
return features
@@ -1,73 +0,0 @@
#!/usr/bin/env python
# Copyright 2026 NVIDIA Corporation and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Save the current SO-101 joint positions as the reset-origin pose (override).
Move the arm to the desired reset pose by hand (torque off), then run this script to write
those joints to a per-arm file in the LeRobot cache. ``teleoperate.py`` / ``record.py`` load
it on startup (matched by ``--robot.id``) as the reset target instead of the defaults.
Usage::
# 1. Move arm to desired reset pose by hand
python -m examples.isaac_teleop_to_so101.override_reset_pose [--port /dev/ttyACM0] [--id so101_follower_arm]
# 2. Launch teleop with the SAME --robot.id — it will now reset to this pose on startup
python -m examples.isaac_teleop_to_so101.teleoperate --robot.type=so101_follower --robot.port=/dev/ttyACM0 --robot.id=so101_follower_arm --teleop.type=xr_controller
"""
import argparse
import json
from pathlib import Path
from lerobot.robots.so_follower import SO100Follower, SO100FollowerConfig
from .common import RESET_POSE_FILE
def parse_args():
parser = argparse.ArgumentParser(
description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter
)
parser.add_argument("--port", type=str, default="/dev/ttyACM0")
parser.add_argument("--id", type=str, default="so101_follower_arm")
return parser.parse_args()
def main():
args = parse_args()
robot = SO100Follower(SO100FollowerConfig(port=args.port, id=args.id, use_degrees=True))
robot.connect()
# Always disconnect the follower so a failure never leaks the serial connection.
try:
obs = robot.get_observation()
motor_names = list(robot.bus.motors.keys())
pose = {name: float(obs[f"{name}.pos"]) for name in motor_names}
finally:
robot.disconnect()
print("Current joint positions:")
for name, val in pose.items():
print(f" {name:20s}: {val:.2f}")
reset_pose_file = Path(RESET_POSE_FILE.format(robot_name=robot.name, robot_id=robot.id))
reset_pose_file.parent.mkdir(parents=True, exist_ok=True)
reset_pose_file.write_text(json.dumps(pose, indent=2))
print(f"\nSaved to {reset_pose_file}")
if __name__ == "__main__":
main()
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@@ -1,321 +0,0 @@
#!/usr/bin/env python
# Copyright 2026 NVIDIA Corporation and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Record a LeRobot dataset via NVIDIA Isaac Teleop -> SO-101.
Runs ``teleoperate.py``'s control loop while also saving each frame to a LeRobot dataset.
``--teleop.type`` selects the device (``xr_controller`` | ``so101_leader``) as in
``teleoperate.py``.
Usage::
# XR (VR) controller: clutch + soft-orientation IK
python -m examples.isaac_teleop_to_so101.record \\
--robot.type=so101_follower \\
--robot.port=/dev/ttyACM0 \\
--robot.id=so101_follower_arm \\
--teleop.type=xr_controller \\
--robot.cameras="{ front: {type: opencv, index_or_path: 0, width: 640, height: 480, fps: 30}}" \\
--dataset.repo_id=<hf_user>/<dataset_name> \\
--dataset.single_task="Pick up vial from rack on the left side" \\
--dataset.num_episodes=3 \\
--dataset.episode_time_s=20 \\
--dataset.reset_time_s=5
# SO-101 leader arm: 1:1 joint mirror (real leader on /dev/ttyACM1)
python -m examples.isaac_teleop_to_so101.record \\
--robot.type=so101_follower --robot.port=/dev/ttyACM0 --robot.id=so101_follower_arm \\
--teleop.type=so101_leader --teleop.port=/dev/ttyACM1 --teleop.id=so101_leader_arm \\
--launch_plugin=/path/to/IsaacTeleop/install/plugins/so101_leader/so101_leader_plugin \\
--dataset.repo_id=<hf_user>/<dataset_name> --dataset.single_task="Pick up the cube" \\
--dataset.num_episodes=3 --dataset.episode_time_s=20 --dataset.reset_time_s=5
The loop/launch knobs mirror ``teleoperate.py`` (tagged ``[xr]`` / ``[leader]`` below).
Keyboard shortcuts: Right/n = end episode early and save, Left/r = discard + re-record,
Esc/q = stop after the current episode. All frames are recorded (including hold frames).
"""
import logging
import time
from dataclasses import asdict, dataclass
from pprint import pformat
from lerobot.cameras import CameraConfig # noqa: F401
from lerobot.cameras.opencv import OpenCVCameraConfig # noqa: F401
from lerobot.common.control_utils import sanity_check_dataset_robot_compatibility
from lerobot.configs import parser
from lerobot.configs.dataset import DatasetRecordConfig
from lerobot.datasets import (
LeRobotDataset,
VideoEncodingManager,
aggregate_pipeline_dataset_features,
create_initial_features,
safe_stop_image_writer,
)
from lerobot.processor import make_default_processors
from lerobot.robots import RobotConfig
from lerobot.robots.so_follower import SOFollowerConfig # noqa: F401 (registers so101_follower)
from lerobot.utils.constants import ACTION, OBS_STR
from lerobot.utils.feature_utils import build_dataset_frame, combine_feature_dicts
from lerobot.utils.robot_utils import precise_sleep
from lerobot.utils.utils import init_logging
from .common import (
ALIGN_DURATION_S,
RESET_DURATION_S,
Device,
HoldLatch,
build_device,
init_keyboard_listener,
)
from .isaac_teleop import IsaacTeleopConfig
@dataclass
class RecordConfig:
"""CLI config for Isaac Teleop -> SO-101 dataset recording.
``--robot.*`` / ``--teleop.*`` / ``--dataset.*`` configure the follower, device, and
recording; the loop/launch knobs below carry the same ``[xr]`` / ``[leader]`` tags as
``teleoperate.py``. Use ``--flag=false`` for booleans (draccus style).
"""
robot: RobotConfig
# --teleop.type=xr_controller|so101_leader, resolved against IsaacTeleopConfig's registry.
teleop: IsaacTeleopConfig
dataset: DatasetRecordConfig
# [leader] Path to the so101_leader plugin binary to spawn after CloudXR is up (it then
# inherits the runtime env). None (default) -> assume the plugin already runs externally.
launch_plugin: str | None = None
# [xr] Slew all joints to the reset pose before the first episode (--reset_to_origin=false to
# keep the arm where it is). After the slew the clutch seeds its home from the measured pose.
reset_to_origin: bool = True
# [xr] Duration [s] of the reset-to-origin slew (passed through to setup_xr).
reset_duration: float = RESET_DURATION_S
# [leader] Slew the follower to the leader's first pose before mirroring (--align=false to
# begin the 1:1 mirror immediately; the follower may snap).
align: bool = True
# [leader] Duration [s] of the startup alignment slew.
align_duration: float = ALIGN_DURATION_S
# Resume recording on an existing (previously interrupted) dataset.
resume: bool = False
@safe_stop_image_writer
def _record_loop(
robot,
device: Device,
motor_names: list[str],
events: dict,
fps: int,
dataset: LeRobotDataset | None = None,
control_time_s: float = 0.0,
single_task: str | None = None,
) -> None:
"""Run one episode (or reset phase) of the control loop.
When ``dataset`` is None the loop still controls the robot (so the operator
can reposition the arm during the reset window) but does not record frames.
"""
control_interval = 1.0 / fps
timestamp = 0.0
start_t = time.perf_counter()
record_frames = dataset is not None
hold = HoldLatch(motor_names)
while timestamp < control_time_s:
loop_start = time.perf_counter()
if events["exit_early"]:
events["exit_early"] = False
break
obs = robot.get_observation()
if record_frames:
observation_frame = build_dataset_frame(dataset.features, obs, prefix=OBS_STR)
# Device idle (XR clutch disengaged, or leader stream stale) -> hold the pose
# latched on the active->idle edge.
action = hold.resolve(device.compute(obs), obs)
robot.send_action(action)
if record_frames:
action_frame = build_dataset_frame(dataset.features, action, prefix=ACTION)
dataset.add_frame({**observation_frame, **action_frame, "task": single_task})
dt_s = time.perf_counter() - loop_start
precise_sleep(max(control_interval - dt_s, 0.0))
timestamp = time.perf_counter() - start_t
@parser.wrap()
def record(cfg: RecordConfig) -> LeRobotDataset:
init_logging()
logging.info(pformat(asdict(cfg)))
# Connect the follower, build the selected Isaac device, and run its pre-loop startup
# (reset slew / leader align) — shared with teleoperate.py.
robot, device, motor_names = build_device(cfg)
# Build dataset feature spec. The IK pipeline lives inside device.compute(), so the
# action features are exactly robot.action_features (joint positions in degrees).
teleop_proc, _, obs_proc = make_default_processors()
dataset_features = combine_feature_dicts(
aggregate_pipeline_dataset_features(
pipeline=teleop_proc,
initial_features=create_initial_features(action=robot.action_features),
use_videos=cfg.dataset.video,
),
aggregate_pipeline_dataset_features(
pipeline=obs_proc,
initial_features=create_initial_features(observation=robot.observation_features),
use_videos=cfg.dataset.video,
),
)
num_cameras = len(robot.cameras) if hasattr(robot, "cameras") else 0
image_writer_threads = cfg.dataset.num_image_writer_threads_per_camera * num_cameras
dataset: LeRobotDataset | None = None
listener = None
try:
if cfg.resume:
dataset = LeRobotDataset.resume(
cfg.dataset.repo_id,
root=cfg.dataset.root,
batch_encoding_size=cfg.dataset.video_encoding_batch_size,
rgb_encoder=cfg.dataset.rgb_encoder,
depth_encoder=cfg.dataset.depth_encoder,
encoder_threads=cfg.dataset.encoder_threads,
streaming_encoding=cfg.dataset.streaming_encoding,
encoder_queue_maxsize=cfg.dataset.encoder_queue_maxsize,
image_writer_processes=cfg.dataset.num_image_writer_processes if num_cameras > 0 else 0,
image_writer_threads=image_writer_threads if num_cameras > 0 else 0,
)
sanity_check_dataset_robot_compatibility(dataset, robot, cfg.dataset.fps, dataset_features)
else:
cfg.dataset.stamp_repo_id()
dataset = LeRobotDataset.create(
cfg.dataset.repo_id,
cfg.dataset.fps,
root=cfg.dataset.root,
robot_type=robot.name,
features=dataset_features,
use_videos=cfg.dataset.video,
image_writer_processes=cfg.dataset.num_image_writer_processes,
image_writer_threads=image_writer_threads,
batch_encoding_size=cfg.dataset.video_encoding_batch_size,
rgb_encoder=cfg.dataset.rgb_encoder,
depth_encoder=cfg.dataset.depth_encoder,
encoder_threads=cfg.dataset.encoder_threads,
streaming_encoding=cfg.dataset.streaming_encoding,
encoder_queue_maxsize=cfg.dataset.encoder_queue_maxsize,
)
listener, events = init_keyboard_listener()
loop_kwargs = {
"robot": robot,
"device": device,
"motor_names": motor_names,
"events": events,
"fps": cfg.dataset.fps,
"single_task": cfg.dataset.single_task,
}
with VideoEncodingManager(dataset):
recorded_episodes = 0
while recorded_episodes < cfg.dataset.num_episodes and not events["stop_recording"]:
logging.info(f"Recording episode {dataset.num_episodes}")
_record_loop(
**loop_kwargs,
dataset=dataset,
control_time_s=cfg.dataset.episode_time_s,
)
# Reset window: give the operator time to reposition the scene.
# Skipped for the last episode (or if stop_recording was set).
if not events["stop_recording"] and (
recorded_episodes < cfg.dataset.num_episodes - 1 or events["rerecord_episode"]
):
logging.info("Reset the environment")
_record_loop(
**loop_kwargs,
dataset=None,
control_time_s=cfg.dataset.reset_time_s,
)
if events["rerecord_episode"]:
logging.info("Re-record episode")
events["rerecord_episode"] = False
events["exit_early"] = False
dataset.clear_episode_buffer()
continue
dataset.save_episode()
recorded_episodes += 1
finally:
logging.info("Stop recording")
# Hardware teardown FIRST, each step guarded: the arm must be freed promptly (not
# after a potentially long finalize/encode), a cleanup failure must not skip the
# follower disconnect (which is what disables torque), and neither must prevent
# the dataset from being finalized below.
try:
device.cleanup()
except Exception:
logging.exception("Device cleanup failed")
try:
if robot.is_connected:
robot.disconnect()
except Exception:
logging.exception("Robot disconnect failed")
# Restore the terminal before the (potentially long) finalize/encode.
if listener is not None:
try:
listener.stop()
except Exception:
logging.exception("Keyboard listener stop failed")
if dataset is not None:
dataset.finalize()
if cfg.dataset.push_to_hub:
if dataset is not None and dataset.num_episodes > 0:
dataset.push_to_hub(tags=cfg.dataset.tags, private=cfg.dataset.private)
else:
logging.warning("No episodes saved — skipping push to hub")
logging.info("Exiting")
return dataset
def main():
record()
if __name__ == "__main__":
main()
@@ -1,117 +0,0 @@
#!/usr/bin/env python
# Copyright 2026 NVIDIA Corporation and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Teleoperate an SO-101 follower arm via NVIDIA Isaac Teleop.
``lerobot-teleoperate``-style CLI (draccus): ``--teleop.type`` selects the Isaac device
(``xr_controller`` | ``so101_leader``), ``--robot.*`` the follower::
# XR (VR) controller: clutch + soft-orientation IK
python -m examples.isaac_teleop_to_so101.teleoperate --robot.type=so101_follower \
--robot.port=/dev/ttyACM0 --robot.id=so101_follower_arm --teleop.type=xr_controller
# SO-101 leader arm: 1:1 joint mirror (real leader on /dev/ttyACM1)
python -m examples.isaac_teleop_to_so101.teleoperate --robot.type=so101_follower \
--robot.port=/dev/ttyACM0 --robot.id=so101_follower_arm --teleop.type=so101_leader \
--teleop.port=/dev/ttyACM1 --teleop.id=so101_leader_arm \
--launch_plugin=/code/Teleop/install/plugins/so101_leader/so101_leader_plugin
``--teleop.type`` resolves against the Isaac device registry (see :class:`IsaacTeleopConfig`),
distinct from the serial ``so101_leader``. The pipelines, clutch/IK/align internals, and
reset-pose behavior live in ``common.py``. Requires the ``isaacteleop`` package and an OpenXR
runtime (install instructions in this folder's ``README.md``).
"""
import time
from dataclasses import dataclass
from lerobot.configs import parser
from lerobot.robots import RobotConfig
from lerobot.robots.so_follower import SOFollowerConfig # noqa: F401 (registers so101_follower)
from lerobot.utils.robot_utils import precise_sleep
from .common import (
ALIGN_DURATION_S,
FPS,
RESET_DURATION_S,
HoldLatch,
build_device,
)
from .isaac_teleop import IsaacTeleopConfig
@dataclass
class TeleoperateConfig:
"""``lerobot-teleoperate``-style CLI for the Isaac Teleop -> SO-101 example.
The fields below are the loop/launch knobs (not part of either device's config); the
``[xr]`` / ``[leader]`` tags mark which device a knob applies to. Use ``--flag=false``
for booleans (draccus style).
"""
# Isaac Teleop input device + its knobs (--teleop.type=xr_controller|so101_leader,
# then --teleop.<field>=...). Resolved against IsaacTeleopConfig's own choice registry.
teleop: IsaacTeleopConfig
# SO-101 FOLLOWER arm (--robot.type=so101_follower --robot.port=/dev/ttyACM0 --robot.id=...).
robot: RobotConfig
# [leader] Path to the so101_leader plugin binary to spawn AFTER CloudXR is up (it then
# inherits the runtime env). None (default) -> assume the plugin already runs externally.
# The leader's serial port is --teleop.port (forwarded to the plugin; empty -> synthetic).
launch_plugin: str | None = None
# [xr] Slew all joints to a default reset pose before the loop (--reset_to_origin=false to
# keep the arm where it is). After the slew the clutch seeds its home from the measured pose.
reset_to_origin: bool = True
# [xr] Duration [s] of the reset-to-origin slew.
reset_duration: float = RESET_DURATION_S
# [leader] Slew the follower to the leader's first pose before mirroring (--align=false to
# begin the 1:1 mirror immediately; the follower may snap).
align: bool = True
# [leader] Duration [s] of the startup alignment slew.
align_duration: float = ALIGN_DURATION_S
@parser.wrap()
def teleoperate(cfg: TeleoperateConfig):
robot, device, motor_names = build_device(cfg)
hold = HoldLatch(motor_names)
try:
while True:
t0 = time.perf_counter()
obs = robot.get_observation()
# Idle (compute() -> None) holds the pose latched on the active->idle edge.
action = hold.resolve(device.compute(obs), obs)
robot.send_action(action)
precise_sleep(max(1.0 / FPS - (time.perf_counter() - t0), 0.0))
except KeyboardInterrupt:
pass
finally:
# A failing device cleanup must not skip the follower disconnect (which is what
# disables torque on the arm).
try:
device.cleanup()
finally:
robot.disconnect()
def main():
teleoperate()
if __name__ == "__main__":
main()
@@ -0,0 +1,79 @@
#!/usr/bin/env python
"""Convert a legacy LeRobot checkpoint to the current processor-pipeline format.
Older hub checkpoints (e.g. ``lerobot/act_aloha_sim_insertion_human``) bake
normalization stats into the model weights and do not ship
``policy_preprocessor.json`` / ``policy_postprocessor.json``. Current ``main``
loads those processor configs from the checkpoint, so eval/rollout fail with
``FileNotFoundError: Could not find 'policy_preprocessor.json'``.
This script rebuilds the processors from the training dataset's stats and saves
a pipeline-format checkpoint locally that ``lerobot-eval`` can consume directly.
Usage:
python examples/onnx/convert_legacy_checkpoint.py \
--policy-path=lerobot/act_aloha_sim_insertion_human \
--dataset-repo-id=lerobot/aloha_sim_insertion_human \
--output-dir=outputs/converted/act_aloha_sim_insertion_human
Then:
lerobot-eval \
--policy.path=outputs/converted/act_aloha_sim_insertion_human \
--env.type=aloha --env.task=AlohaInsertion-v0 \
--eval.batch_size=10 --eval.n_episodes=50 \
--eval.use_async_envs=false --policy.device=cuda
"""
import argparse
from pathlib import Path
from lerobot.configs.policies import PreTrainedConfig
from lerobot.datasets.dataset_metadata import LeRobotDatasetMetadata
from lerobot.policies.factory import make_policy, make_pre_post_processors
from lerobot.utils.constants import (
POLICY_POSTPROCESSOR_DEFAULT_NAME,
POLICY_PREPROCESSOR_DEFAULT_NAME,
)
def main():
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument("--policy-path", required=True, help="Legacy checkpoint repo id or local dir")
parser.add_argument(
"--dataset-repo-id",
required=True,
help="Training dataset repo id, used only for normalization stats",
)
parser.add_argument("--output-dir", required=True, help="Where to save the converted checkpoint")
parser.add_argument("--device", default="cpu", help="Device for building the policy (cpu is fine)")
args = parser.parse_args()
out = Path(args.output_dir)
out.mkdir(parents=True, exist_ok=True)
print(f"[1/4] Loading dataset stats from '{args.dataset_repo_id}' (metadata only)...")
ds_meta = LeRobotDatasetMetadata(args.dataset_repo_id)
print(f"[2/4] Loading policy weights from '{args.policy_path}'...")
cfg = PreTrainedConfig.from_pretrained(args.policy_path)
cfg.pretrained_path = args.policy_path
cfg.device = args.device
policy = make_policy(cfg, ds_meta=ds_meta)
print("[3/4] Building processors from dataset stats...")
preprocessor, postprocessor = make_pre_post_processors(
policy_cfg=policy.config,
dataset_stats=ds_meta.stats,
)
print(f"[4/4] Saving pipeline-format checkpoint to '{out}'...")
policy.save_pretrained(out)
preprocessor.save_pretrained(out, config_filename=f"{POLICY_PREPROCESSOR_DEFAULT_NAME}.json")
postprocessor.save_pretrained(out, config_filename=f"{POLICY_POSTPROCESSOR_DEFAULT_NAME}.json")
print(f"\nDone. Converted checkpoint at: {out}")
print("Eval it with --policy.path=" + str(out))
if __name__ == "__main__":
main()
+178
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@@ -0,0 +1,178 @@
#!/usr/bin/env python
"""Evaluate an ACT policy in sim with either the PyTorch or ONNX network.
The ONNX backend swaps only ``policy.model`` (ResNet + transformer + action head)
with an onnxruntime session. Everything else - the LeRobot processor pipeline
(normalization), the action queue, and the gym env - is identical, so any
difference in success rate is attributable to the network backend alone.
Run both backends with the same seed to compare:
python examples/onnx/eval_act_onnx.py \
--policy-path=lerobot/act_aloha_sim_transfer_cube_human \
--task=AlohaTransferCube-v0 \
--backend=torch --n-episodes=50 --batch-size=10 --device=cuda
python examples/onnx/eval_act_onnx.py \
--policy-path=lerobot/act_aloha_sim_transfer_cube_human \
--task=AlohaTransferCube-v0 \
--onnx=outputs/onnx/act_transfer_cube.onnx \
--backend=onnx --n-episodes=50 --batch-size=10 --device=cuda
"""
import argparse
from pathlib import Path
import numpy as np
import torch
from torch import nn
from lerobot.envs.factory import make_env, make_env_config, make_env_pre_post_processors
from lerobot.policies.act.modeling_act import ACTPolicy
from lerobot.policies.factory import make_pre_post_processors
from lerobot.scripts.lerobot_eval import eval_policy
from lerobot.utils.constants import OBS_ENV_STATE, OBS_IMAGES, OBS_STATE
from lerobot.utils.random_utils import set_seed
class ONNXACTModel(nn.Module):
"""Drop-in replacement for ``ACTPolicy.model`` backed by onnxruntime."""
def __init__(
self, onnx_path: str, image_keys: list[str], has_state: bool, has_env_state: bool, device: str
):
super().__init__()
import onnxruntime as ort
providers = (
["CUDAExecutionProvider", "CPUExecutionProvider"]
if str(device).startswith("cuda")
else ["CPUExecutionProvider"]
)
so = ort.SessionOptions()
so.log_severity_level = 3
self.sess = ort.InferenceSession(onnx_path, sess_options=so, providers=providers)
self.image_keys = image_keys
self.has_state = has_state
self.has_env_state = has_env_state
print(f"[onnx] providers in use: {self.sess.get_providers()}")
def forward(self, batch: dict):
state = batch[OBS_STATE] if self.has_state else batch[OBS_ENV_STATE]
ref = state
ort_inputs = {"state": state.detach().cpu().numpy().astype(np.float32)}
images = batch[OBS_IMAGES]
for i, img in enumerate(images):
ort_inputs[f"image_{i}"] = img.detach().cpu().numpy().astype(np.float32)
out = self.sess.run(None, ort_inputs)[0]
actions = torch.from_numpy(out).to(ref.device, dtype=ref.dtype)
return actions, None
def load_stats_from_checkpoint(policy_path: str, input_features, output_features) -> dict:
"""Recover MEAN_STD stats baked into a legacy ACT checkpoint's safetensors buffers.
Legacy checkpoints store normalization as buffers like
``normalize_inputs.buffer_observation_state.{mean,std}``. We map those back to
feature names so we can rebuild the processor pipeline without the dataset.
"""
from safetensors.torch import load_file
p = Path(policy_path)
if p.is_dir():
st_path = p / "model.safetensors"
else:
from huggingface_hub import hf_hub_download
st_path = Path(hf_hub_download(policy_path, "model.safetensors"))
sd = load_file(str(st_path))
stats: dict = {}
for feat in list(input_features) + list(output_features):
buf = "buffer_" + feat.replace(".", "_")
for prefix in ("normalize_inputs", "normalize_targets", "unnormalize_outputs"):
mkey, skey = f"{prefix}.{buf}.mean", f"{prefix}.{buf}.std"
if mkey in sd and skey in sd:
stats[feat] = {"mean": sd[mkey].numpy(), "std": sd[skey].numpy()}
break
return stats
def main():
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument("--policy-path", required=True)
parser.add_argument("--task", required=True, help="e.g. AlohaTransferCube-v0")
parser.add_argument("--env-type", default="aloha")
parser.add_argument("--backend", choices=["torch", "onnx"], default="torch")
parser.add_argument("--onnx", default=None, help="Path to .onnx (required for --backend=onnx)")
parser.add_argument("--n-episodes", type=int, default=50)
parser.add_argument("--batch-size", type=int, default=10)
parser.add_argument("--device", default="cuda")
parser.add_argument("--seed", type=int, default=1000)
args = parser.parse_args()
if args.backend == "onnx" and not args.onnx:
raise SystemExit("--backend=onnx requires --onnx=<path>")
device = "cuda" if (args.device == "cuda" and torch.cuda.is_available()) else "cpu"
set_seed(args.seed)
print(f"[1/4] Loading ACT policy from '{args.policy_path}'...")
policy = ACTPolicy.from_pretrained(args.policy_path)
policy.config.device = device
policy.eval()
policy.to(device)
cfg = policy.config
if args.backend == "onnx":
image_keys = list(cfg.image_features)
has_state = cfg.robot_state_feature is not None
has_env_state = cfg.env_state_feature is not None
print(f"[2/4] Swapping policy.model with ONNX backend ({args.onnx})")
policy.model = ONNXACTModel(args.onnx, image_keys, has_state, has_env_state, device)
policy.to(device)
else:
print("[2/4] Using PyTorch backend")
print("[3/4] Building processors and environment...")
stats = load_stats_from_checkpoint(args.policy_path, cfg.input_features, cfg.output_features)
preprocessor, postprocessor = make_pre_post_processors(
policy_cfg=cfg,
dataset_stats=stats,
preprocessor_overrides={"device_processor": {"device": device}},
)
env_cfg = make_env_config(args.env_type, task=args.task)
env_preprocessor, env_postprocessor = make_env_pre_post_processors(env_cfg=env_cfg, policy_cfg=cfg)
env_groups = make_env(env_cfg, n_envs=args.batch_size, use_async_envs=False)
# make_env returns {task_group: {idx: VectorEnv}}; grab the single env.
first_group = next(iter(env_groups.values()))
env = next(iter(first_group.values()))
print(f"[4/4] Evaluating backend='{args.backend}' for {args.n_episodes} episodes (seed={args.seed})...")
with torch.no_grad():
info = eval_policy(
env=env,
policy=policy,
env_preprocessor=env_preprocessor,
env_postprocessor=env_postprocessor,
preprocessor=preprocessor,
postprocessor=postprocessor,
n_episodes=args.n_episodes,
start_seed=args.seed,
)
agg = info["aggregated"]
print("\n==== RESULT ====")
print(f"backend : {args.backend}")
print(f"task : {args.task}")
print(f"n_episodes : {args.n_episodes}")
print(f"pc_success : {agg['pc_success']:.1f}%")
print(f"avg_max_reward: {agg['avg_max_reward']:.4f}")
print(f"eval_ep_s : {agg['eval_ep_s']:.2f}s")
env.close()
if __name__ == "__main__":
main()
+133
View File
@@ -0,0 +1,133 @@
#!/usr/bin/env python
"""Export an ACT policy's network to ONNX and verify numerical parity.
Only the inference network is exported (ResNet backbone + transformer enc/dec +
action head). The VAE encoder is training-only and the inference latent is zeros,
so the exported graph is a pure function of (state, images) -> action_chunk.
Normalization stays in the LeRobot processor pipeline (outside ONNX).
Usage:
python examples/onnx/export_act.py \
--policy-path=outputs/converted/act_aloha_sim_transfer_cube_human \
--output=outputs/onnx/act_transfer_cube.onnx
"""
import argparse
from pathlib import Path
import numpy as np
import torch
from torch import nn
from lerobot.policies.act.modeling_act import ACTPolicy
from lerobot.utils.constants import OBS_ENV_STATE, OBS_IMAGES, OBS_STATE
class ACTExportWrapper(nn.Module):
"""Tensor-in/tensor-out wrapper around ACT's inference network."""
def __init__(self, model: nn.Module, image_keys: list[str], has_state: bool, has_env_state: bool):
super().__init__()
self.model = model
self.image_keys = image_keys
self.has_state = has_state
self.has_env_state = has_env_state
def forward(self, state: torch.Tensor, *images: torch.Tensor) -> torch.Tensor:
batch: dict = {}
if self.has_state:
batch[OBS_STATE] = state
if self.has_env_state:
# Convention: when env_state is used it is passed as `state`.
batch[OBS_ENV_STATE] = state
batch[OBS_IMAGES] = list(images)
actions, _ = self.model(batch)
return actions
def main():
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument("--policy-path", required=True, help="Converted ACT checkpoint dir or repo id")
parser.add_argument("--output", required=True, help="Output .onnx path")
parser.add_argument("--opset", type=int, default=17)
parser.add_argument("--atol", type=float, default=1e-3)
parser.add_argument("--device", default="cpu")
args = parser.parse_args()
out = Path(args.output)
out.parent.mkdir(parents=True, exist_ok=True)
print(f"[1/4] Loading ACT policy from '{args.policy_path}'...")
policy = ACTPolicy.from_pretrained(args.policy_path)
policy.eval()
policy.to(args.device)
cfg = policy.config
image_keys = list(cfg.image_features)
has_state = cfg.robot_state_feature is not None
has_env_state = cfg.env_state_feature is not None
state_dim = (cfg.robot_state_feature or cfg.env_state_feature).shape[0]
print(
f" image_keys={image_keys} state_dim={state_dim} "
f"chunk_size={cfg.chunk_size} action_dim={cfg.action_feature.shape[0]}"
)
wrapper = ACTExportWrapper(policy.model, image_keys, has_state, has_env_state).eval().to(args.device)
# Build example inputs (batch size 1) from the config feature shapes.
state_example = torch.randn(1, state_dim, device=args.device)
image_examples = [torch.rand(1, *cfg.image_features[k].shape, device=args.device) for k in image_keys]
example_inputs = (state_example, *image_examples)
input_names = ["state"] + [f"image_{i}" for i in range(len(image_keys))]
output_names = ["action_chunk"]
dynamic_axes = {name: {0: "batch"} for name in input_names + output_names}
print(f"[2/4] Exporting to ONNX (opset {args.opset}) -> {out}")
torch.onnx.export(
wrapper,
example_inputs,
str(out),
input_names=input_names,
output_names=output_names,
dynamic_axes=dynamic_axes,
opset_version=args.opset,
do_constant_folding=True,
dynamo=False,
)
print("[3/4] Running parity check (torch vs onnxruntime)...")
import onnxruntime as ort
providers = ["CPUExecutionProvider"]
so = ort.SessionOptions()
so.log_severity_level = 3
sess = ort.InferenceSession(str(out), sess_options=so, providers=providers)
# Fresh random inputs for the check.
state_check = torch.randn(2, state_dim, device=args.device)
image_check = [torch.rand(2, *cfg.image_features[k].shape, device=args.device) for k in image_keys]
with torch.no_grad():
torch_out = wrapper(state_check, *image_check).cpu().numpy()
ort_inputs = {"state": state_check.cpu().numpy()}
for i, img in enumerate(image_check):
ort_inputs[f"image_{i}"] = img.cpu().numpy()
ort_out = sess.run(None, ort_inputs)[0]
max_abs = float(np.max(np.abs(torch_out - ort_out)))
mean_abs = float(np.mean(np.abs(torch_out - ort_out)))
print(f" shapes: torch={torch_out.shape} onnx={ort_out.shape}")
print(f" max_abs_diff={max_abs:.3e} mean_abs_diff={mean_abs:.3e} (atol={args.atol:.0e})")
ok = max_abs <= args.atol
print(f"[4/4] Parity: {'PASS' if ok else 'FAIL'}")
if not ok:
raise SystemExit(f"Parity check failed: max_abs_diff {max_abs:.3e} > atol {args.atol:.0e}")
print(f"\nDone. ONNX model at: {out}")
if __name__ == "__main__":
main()
+1 -1
View File
@@ -25,7 +25,7 @@ discord = "https://discord.gg/s3KuuzsPFb"
[project]
name = "lerobot"
version = "0.6.1"
version = "0.5.2"
description = "🤗 LeRobot: State-of-the-art Machine Learning for Real-World Robotics in Pytorch"
dynamic = ["readme"]
license = { text = "Apache-2.0" }
@@ -65,14 +65,6 @@ class PlanConfig:
# invented from the task text (+1 VLM call/episode).
subtask_describe_first: bool = True
# Seeded relabeling: after segmentation, re-label each span with a focused
# pass that sees the previous / current / next segment contact sheets and
# minimally corrects the seed label (macrodata's best end-to-end labeling
# step). Costs +1 VLM call per subtask; off by default.
subtask_seeded_relabel: bool = False
# Frames sampled uniformly per segment sheet in the relabel pass.
subtask_relabel_frames: int = 5
# Emit ``style="plan"`` rows at each boundary; False = subtasks + memory only.
emit_plan: bool = True
@@ -168,11 +160,6 @@ class VlmConfig:
# Forwarded as extra_body.chat_template_kwargs (e.g. {"enable_thinking": false}).
chat_template_kwargs: dict[str, Any] | None = None
# OpenAI-style thinking budget hint ("low"/"medium"/"high"); forwarded to
# the server when set. Used to cap a thinking model's reasoning so it
# leaves tokens for the actual JSON answer on OpenAI-compatible endpoints.
reasoning_effort: str | None = None
@dataclass
class ExecutorConfig:
@@ -413,16 +413,7 @@ def _draw_timestamp_badge(image: PIL.Image.Image, timestamp: float) -> PIL.Image
result = image.copy()
draw = ImageDraw.Draw(result)
# Scale the timestamp to the tile so it stays legible after the model
# downsamples the full sheet into 768px tiles — a tiny bitmap font blurs
# at contact-sheet resolution and the VLM can no longer read the exact
# source time, which is what the boundary score depends on. ``size=`` is
# supported by Pillow's bitmap default since 10.1; fall back otherwise.
badge_px = max(14, round(image.height * 0.12))
try:
font = ImageFont.load_default(size=badge_px)
except TypeError:
font = ImageFont.load_default()
font = ImageFont.load_default()
label = f"{timestamp:06.2f}s"
left, top, right, bottom = draw.textbbox((0, 0), label, font=font)
text_w, text_h = right - left, bottom - top
@@ -116,8 +116,6 @@ class PlanSubtasksMemoryModule:
rows.extend(self._task_aug_rows([effective_task, *variants], t0))
subtask_spans = self._generate_subtasks(record, task=effective_task)
if self.config.subtask_seeded_relabel and subtask_spans:
subtask_spans = self._seeded_relabel(record, subtask_spans, effective_task)
# subtask rows
for span in subtask_spans:
@@ -511,51 +509,6 @@ class PlanSubtasksMemoryModule:
return cleaned
def _seeded_relabel(
self, record: EpisodeRecord, spans: list[dict[str, Any]], task: str
) -> list[dict[str, Any]]:
"""Re-label each span using prev/current/next segment contact sheets.
Boundaries are kept fixed; only ``text`` is refined. The original
("seed") label is passed as a strong prior so the model verifies and
minimally corrects it rather than re-describing from scratch — the
macrodata seeded-relabeling step. One VLM call per span.
"""
n = len(spans)
out: list[dict[str, Any]] = []
for i, span in enumerate(spans):
content: list[dict[str, Any]] = []
if i > 0:
content += self._segment_sheet(record, spans[i - 1])
content += self._segment_sheet(record, span)
if i < n - 1:
content += self._segment_sheet(record, spans[i + 1])
prompt = load_prompt("plan_subtask_relabel").format(
episode_task=task,
seed_label=span["text"],
segment_index=i + 1,
segment_count=n,
start=float(span["start"]),
end=float(span["end"]),
)
content.append({"type": "text", "text": prompt})
label = self._vlm_field([{"role": "user", "content": content}], "label")
text = label.strip() if isinstance(label, str) and label.strip() else span["text"]
out.append({**span, "text": text})
return out
def _segment_sheet(self, record: EpisodeRecord, span: dict[str, Any]) -> list[dict[str, Any]]:
"""Contact-sheet block(s) for one span: up to N frames sampled uniformly."""
s, e = float(span["start"]), float(span["end"])
n = max(1, int(self.config.subtask_relabel_frames))
if e <= s or n == 1:
timestamps = [s]
else:
step = (e - s) / (n - 1)
timestamps = [s + i * step for i in range(n)]
frames = self.frame_provider.frames_at(record, timestamps)
return self._contact_sheet_blocks(frames, timestamps[: len(frames)])
def _generate_subtasks_windowed(
self, record: EpisodeRecord, task: str, window_s: float
) -> list[dict[str, Any]]:
@@ -22,23 +22,12 @@ plain editors and roundtrip cleanly through ``ruff format``.
from __future__ import annotations
import os
from pathlib import Path
_DIR = Path(__file__).parent
def load(name: str) -> str:
"""Read prompt template ``name.txt`` from the ``prompts/`` directory.
A ``LEROBOT_PROMPT_OVERRIDE_<name>`` environment variable, when set to a
non-empty value, takes precedence over the packaged file. This lets prompt
search (e.g. GEPA) inject candidate templates into a remote job without
rebuilding the package; the override must keep the same ``{placeholder}``
fields the call site formats in.
"""
override = os.environ.get(f"LEROBOT_PROMPT_OVERRIDE_{name}")
if override and override.strip():
return override
"""Read prompt template ``name.txt`` from the ``prompts/`` directory."""
path = _DIR / f"{name}.txt"
return path.read_text(encoding="utf-8")
@@ -1,35 +0,0 @@
Annotate one fixed segment from a longer robot demonstration.
Return only JSON:
{{"label": "<short descriptive subtask label>"}}
You are shown up to three timestamped contact sheets, in order:
- The FIRST sheet is the PREVIOUS segment (context only); it may be absent.
- The SECOND sheet is the CURRENT target segment.
- The THIRD sheet is the NEXT segment (context only); it may be absent.
Each tile has its timestamp (seconds, absolute video time) burned into its
top-left corner.
Episode instruction: "{episode_task}"
Target segment: {segment_index} of {segment_count}
Target time: {start:.2f}s to {end:.2f}s
Original predicted label for this exact segment: "{seed_label}"
Rules:
- Label ONLY the current target segment (the second sheet). Use the
previous/next sheets only to disambiguate what changed.
- Treat the original predicted label as a STRONG PRIOR, not ground truth:
verify it against the current segment and correct it minimally.
- If it already names the right action and main object, keep it; only fix
grammar or add a clearly visible essential detail.
- If it is vague but directionally correct, make it more specific.
- If it describes the previous/next segment, the wrong action, wrong
object, wrong destination, or a wrong state change, replace it.
- Do not describe the previous or next segment, and do not split, merge,
or move the fixed segment.
- Do not introduce an action that is not clearly visible in the current
target segment.
- Use one concise imperative phrase. Name the manipulated object and the
action / state change. Include source, destination, side, direction,
final placement, or opened/closed state when visible and central.
- Do not mention timestamps, frame numbers, uncertainty, or intent.
@@ -1,68 +1,112 @@
You are annotating a teleoperated robot demonstration shown as
timestamped contact sheets (each tile has its time in seconds burned
into the top-left corner). The operator's goal was: "{episode_task}"
You are labeling a teleoperated robot demonstration.
{observation_block}Reconstruct the sequence of COMPLETED manipulation events the robot
performs, in chronological order. Output one segment per event with a
[start, end] time in seconds and a short action label.
The user originally asked: "{episode_task}"
GROUNDING — read first, it overrides everything below:
- Label ONLY events you can SEE in the frames. The instruction is the
goal; the VIDEO is the ground truth for what actually happened.
- Do NOT invent, anticipate, or pad steps that are not shown.
You are shown the entire demonstration as a single video. Watch the
whole clip, then segment it into a list of consecutive atomic subtasks
the robot performs.
Granularity — segment by completed events, not by motion:
- Start a NEW segment whenever the world state changes: an object is
grasped, lifted, transported, placed, or released; a held object
changes; a drawer/door/lid/container opens or closes; contents move
between containers (poured); a tool starts or stops acting on a
surface. Watch the gripper open/close transitions — they usually mark
boundaries.
- Do NOT split approach, reach, grasp adjustment, small repositioning,
hesitation, or retreat into their own segments. Fold each into the
event it belongs to (the approach is part of the pick; the retreat is
part of the place).
- Do NOT merge separate completed events. Each distinct pick, place,
open, close, pour, push, wipe, or insert is its own segment, even when
they repeat on different objects or locations.
- Most segments last 2-10 seconds. Shorter segments are okay ONLY for
fast pick / place / open / close / release events. Never emit a
segment shorter than {min_subtask_seconds} seconds; merge a too-short
candidate into its neighbour instead.
- Skip idle time, pure camera motion, and tiny hand jitter.
{observation_block}GROUNDING — read this first, it overrides everything below:
- Label ONLY what the robot actually does in the video. Every subtask
you emit must correspond to motion you can SEE in specific frames.
- Do NOT invent, anticipate, or pad. If the robot only does one thing
(e.g. it just navigates to a location and the clip ends), emit
EXACTLY ONE subtask. Many demonstrations are a single atomic skill.
- ``max_steps`` below is a hard CEILING, not a target. Emitting fewer
subtasks than the ceiling is not just allowed, it is expected for
short / atomic demonstrations. One correct subtask is far better
than several invented ones.
- If the video does not clearly show the action implied by the task,
describe what you actually see — do NOT fabricate the task's steps
from the instruction text. The instruction tells you the goal; the
VIDEO is the ground truth for what happened.
Labels — short imperative phrases:
- One concise command naming the action and the manipulated object, e.g.
"pick up the red cup", "put the cup on the shelf", "open the top
drawer", "pour water into the glass", "insert the plug into the
socket".
- Include source, destination, side, direction, or the final
open/closed state when it is visible and central to the event.
- Prefer these verbs (extend only when none fits): pick up, put, place,
push, pull, turn, press, open, close, pour, insert, wipe, stack.
Disambiguate by what you SEE:
* STACK vs PUT: object placed ON TOP OF another object -> "stack".
* INSERT vs PUT: object pushed INTO a fitted slot/hole/socket -> "insert".
* PICK UP vs PUT (direction): gripper CLOSES and object moves WITH
the hand -> "pick up"; gripper OPENS and object stays -> "put".
* POUR vs PUT: source is tilted and contents flow -> "pour".
- Use the exact object nouns implied by the task; stay consistent across
the episode (don't switch "cube" to "block").
- Write imperative commands, never third person ("the robot ..."), and
drop articles/adverbs.
Authoring rules — Hi Robot atom granularity, pi0.7-style short prompts:
Timing:
- Use the burned-in timestamps to set start and end. Boundaries should
land on or near a printed time, and every [start, end] must lie within
[0.0, {episode_duration}] seconds, be non-overlapping, and cover the
episode in order.
- Emit at most {max_steps} segments.
- Each subtask = one COMPOSITE atomic skill the low-level policy can
execute end-to-end. A "skill" bundles its own approach motion with
its terminal action — do NOT split the approach off as its own
subtask. The whole-arm policy already learns to reach as part of
every manipulation primitive.
- Write each subtask as an IMPERATIVE COMMAND, starting with one of
these verbs (extend only when none fits):
pick up <obj> — approach + grasp + lift in one subtask
put <obj> on/in <loc> — transport + release in one subtask
place <obj> on/in <loc> — synonym of "put"; pick one and stay consistent
push <obj> — contact + linear shove
pull <obj> — contact + linear retract
turn <knob/dial/handle> — rotary actuation
press <button> — single-press contact
open <drawer/door/lid> — full open motion
close <drawer/door/lid> — full close motion
pour <src> into <dst> — tilt + flow
insert <obj> into <slot>— alignment + push-fit
go to <loc> — ONLY when no grasp / actuation follows
(e.g. a pure relocation between phases).
If the next subtask grasps something at
that location, drop "go to ..." and just
write "pick up ..." instead.
- Forbidden ultra-fine splits — the VLM is NOT allowed to emit these
as standalone subtasks; fold them into the parent composite:
"move to X" → fold into "pick up X" (or whatever follows)
"reach for X" → fold into "pick up X"
"grasp X" → fold into "pick up X"
"lift X" → fold into "pick up X" (or "put X on Y" if it's
the transport phase of a place)
"release X" → fold into "put X on Y" (or "place X in Y")
- Keep it SHORT — a verb phrase, not a sentence. Drop articles
("the", "a") and adverbs ("carefully", "slowly"). Add a "how"
detail (which hand, which grasp point) ONLY when it is needed to
disambiguate. Every subtask must begin with one of the verbs
above (no leading nouns, no "then", no "first").
- NEVER use third person. Never write "the robot", "the arm", "the
gripper moves", "it picks up" — the robot is implied. Command it,
do not describe it.
- Use the exact object nouns from the task above. If the task says
"cube", every subtask says "cube" — never switch to "block". If it
says "box", never switch to "bin"/"container". Keep vocabulary
consistent across the whole episode.
- Good: "pick up blue cube", "put blue cube in box", "open drawer",
"turn red knob", "press start button", "go to sink".
- Bad: "move to blue cube" (approach as its own subtask — forbidden,
must be folded into "pick up blue cube"); "the robot arm moves
towards the blue cube" (third person, too long); "carefully pick
up the cube" (adverb, article); "release the yellow block"
("block" when the task said "cube", and "release" must be folded
into a "put"/"place" subtask).
- Subtasks are non-overlapping and cover the full episode in order.
Choose the cut points yourself based on what you see in the video
(gripper open/close events, contact, regrasps, transitions).
- Each subtask spans at least {min_subtask_seconds} seconds. If a
candidate span would be shorter, merge it into its neighbour
rather than emitting it.
- Do not exceed {max_steps} subtasks total. Fewer, larger composites
are preferred over many micro-steps.
- Every subtask's [start_time, end_time] must lie within
[0.0, {episode_duration}] seconds.
SPECIAL CASES — verb disambiguation (each rule is narrowly visual and
fires ONLY on the spatial situation it names; it must not change how you
label any other situation):
- STACK vs PUT: if an object is placed ON TOP OF another specific object
(not on a flat table / shelf / counter), use "stack ... on ...", not
"put". "stack blue book on green book", NOT "put blue book on table".
- INSERT vs PUT: if an object goes INTO a fitted slot / hole / socket /
receptacle (push-fit), use "insert ... into ...", not "put".
- RETRIEVE/PICK-UP vs PUT (direction): watch the gripper. If it CLOSES
on the object and the object moves WITH the hand, it is "pick up" /
"retrieve" (object leaves its location). If the gripper OPENS and the
object stays where the hand left it, it is "put" / "place" (object
arrives at a location). Decide by which way the object moves, not by
where the hand ends up.
- POUR vs PUT: only use "pour" when the source is tilted and contents
flow out; moving a full container without tilting is "put"/"place".
Output strictly valid JSON of shape:
{{
"subtasks": [
{{"text": "<short imperative action label>", "start": <float>, "end": <float>}},
{{"text": "<short imperative verb phrase>", "start": <float>, "end": <float>}},
...
]
}}
@@ -285,8 +285,6 @@ def _make_openai_client(config: VlmConfig) -> VlmClient:
"max_tokens": max_tok,
"temperature": temp,
}
if config.reasoning_effort:
kwargs["reasoning_effort"] = config.reasoning_effort
extra_body: dict[str, Any] = {}
if send_mm_kwargs and mm_kwargs:
extra_body["mm_processor_kwargs"] = {**mm_kwargs, "do_sample_frames": True}
@@ -298,13 +296,7 @@ def _make_openai_client(config: VlmConfig) -> VlmClient:
chosen = clients[rr_counter["i"] % len(clients)]
rr_counter["i"] += 1
response = chosen.chat.completions.create(**kwargs)
# Some OpenAI-compatible servers can return a choice with no message
# (safety filter, or a "thinking" model that spends the whole budget
# before emitting content). Treat that as an empty reply so the
# JSON-retry path handles it instead of crashing the run.
choice = response.choices[0] if response.choices else None
message = choice.message if choice is not None else None
return (message.content if message is not None else None) or ""
return response.choices[0].message.content or ""
def _gen(batch: Sequence[Sequence[dict[str, Any]]], max_tok: int, temp: float) -> list[str]:
if len(batch) <= 1 or config.client_concurrency <= 1:
+9 -15
View File
@@ -205,30 +205,24 @@ class PreTrainedConfig(draccus.ChoiceRegistry, HubMixin, abc.ABC): # type: igno
f"{CONFIG_NAME} not found on the HuggingFace Hub in {model_id}"
) from e
# HACK: Parse the original config to get the config subclass, so that we can
# apply cli overrides.
# This is very ugly, ideally we'd like to be able to do that natively with draccus
# something like --policy.path (in addition to --policy.type)
with draccus.config_type("json"):
orig_config = draccus.parse(cls, config_file, args=[])
if config_file is None:
raise FileNotFoundError(f"{CONFIG_NAME} not found in {model_id}")
with open(config_file) as f:
config = json.load(f)
# Resolve the concrete config subclass from the serialized "type" tag, then parse
# the config (with CLI overrides) directly for that class. The "type" key is
# stripped because draccus only consumes it when parsing the registry base class.
policy_type = config.pop("type", None)
if policy_type is None:
raise ValueError(f"Missing 'type' field in {CONFIG_NAME} of {model_id}")
try:
config_cls = cls.get_choice_class(policy_type)
except Exception as e:
raise ValueError(
f"Policy type '{policy_type}' (from {CONFIG_NAME} of {model_id}) is not registered. "
f"Available policy types: {cls.get_known_choices()}"
) from e
config.pop("type")
with tempfile.NamedTemporaryFile("w+", delete=False, suffix=".json") as f:
json.dump(config, f)
config_file = f.name
cli_overrides = policy_kwargs.pop("cli_overrides", [])
with draccus.config_type("json"):
return draccus.parse(config_cls, config_file, args=cli_overrides)
return draccus.parse(orig_config.__class__, config_file, args=cli_overrides)
-2
View File
@@ -32,7 +32,6 @@ from .pretrained import PreTrainedPolicy as PreTrainedPolicy
from .smolvla.configuration_smolvla import SmolVLAConfig as SmolVLAConfig
from .tdmpc.configuration_tdmpc import TDMPCConfig as TDMPCConfig
from .utils import make_robot_action, prepare_observation_for_inference
from .vla_jepa.configuration_vla_jepa import VLAJEPAConfig as VLAJEPAConfig
from .vqbet.configuration_vqbet import VQBeTConfig as VQBeTConfig
from .wall_x.configuration_wall_x import WallXConfig as WallXConfig
from .xvla.configuration_xvla import XVLAConfig as XVLAConfig
@@ -58,7 +57,6 @@ __all__ = [
"PI05Config",
"SmolVLAConfig",
"TDMPCConfig",
"VLAJEPAConfig",
"VQBeTConfig",
"WallXConfig",
"XVLAConfig",
+39 -2
View File
@@ -18,10 +18,17 @@ from typing import Any
import torch
from lerobot.processor import (
AddBatchDimensionProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
make_default_pre_post_processors,
RenameObservationsProcessorStep,
UnnormalizerProcessorStep,
policy_action_to_transition,
transition_to_policy_action,
)
from lerobot.utils.constants import POLICY_POSTPROCESSOR_DEFAULT_NAME, POLICY_PREPROCESSOR_DEFAULT_NAME
from .configuration_act import ACTConfig
@@ -47,4 +54,34 @@ def make_act_pre_post_processors(
tuple[PolicyProcessorPipeline[dict[str, Any], dict[str, Any]], PolicyProcessorPipeline[PolicyAction, PolicyAction]]: A tuple containing the
pre-processor pipeline and the post-processor pipeline.
"""
return make_default_pre_post_processors(config, dataset_stats, normalizer_device=config.device)
input_steps = [
RenameObservationsProcessorStep(rename_map={}),
AddBatchDimensionProcessorStep(),
DeviceProcessorStep(device=config.device),
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
device=config.device,
),
]
output_steps = [
UnnormalizerProcessorStep(
features=config.output_features, norm_map=config.normalization_mapping, stats=dataset_stats
),
DeviceProcessorStep(device="cpu"),
]
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
@@ -19,10 +19,17 @@ from typing import Any
import torch
from lerobot.processor import (
AddBatchDimensionProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
make_default_pre_post_processors,
RenameObservationsProcessorStep,
UnnormalizerProcessorStep,
policy_action_to_transition,
transition_to_policy_action,
)
from lerobot.utils.constants import POLICY_POSTPROCESSOR_DEFAULT_NAME, POLICY_PREPROCESSOR_DEFAULT_NAME
from .configuration_diffusion import DiffusionConfig
@@ -56,4 +63,32 @@ def make_diffusion_pre_post_processors(
Returns:
A tuple containing the configured pre-processor and post-processor pipelines.
"""
return make_default_pre_post_processors(config, dataset_stats)
input_steps = [
RenameObservationsProcessorStep(rename_map={}),
AddBatchDimensionProcessorStep(),
DeviceProcessorStep(device=config.device),
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
]
output_steps = [
UnnormalizerProcessorStep(
features=config.output_features, norm_map=config.normalization_mapping, stats=dataset_stats
),
DeviceProcessorStep(device="cpu"),
]
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
+37 -12
View File
@@ -23,16 +23,24 @@ import torch
from lerobot.configs.types import FeatureType, PipelineFeatureType, PolicyFeature
from lerobot.processor import (
AddBatchDimensionProcessorStep,
ComplementaryDataProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
ProcessorStep,
ProcessorStepRegistry,
make_default_policy_processor_steps,
make_policy_processor_pipelines,
RenameObservationsProcessorStep,
UnnormalizerProcessorStep,
)
from lerobot.processor.converters import policy_action_to_transition, transition_to_policy_action
from lerobot.types import TransitionKey
from lerobot.utils.constants import OBS_STATE
from lerobot.utils.constants import (
OBS_STATE,
POLICY_POSTPROCESSOR_DEFAULT_NAME,
POLICY_PREPROCESSOR_DEFAULT_NAME,
)
from lerobot.utils.import_utils import _transformers_available, require_package
from .configuration_eo1 import EO1Config
@@ -234,12 +242,14 @@ def make_eo1_pre_post_processors(
]:
"""Build pre/post processor pipelines for EO1."""
steps = make_default_policy_processor_steps(config, dataset_stats)
input_steps: list[ProcessorStep] = [
steps.rename_observations,
steps.add_batch_dim,
steps.normalize,
RenameObservationsProcessorStep(rename_map={}),
AddBatchDimensionProcessorStep(),
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
EO1ConversationTemplateStep(input_features=config.input_features, chunk_size=config.chunk_size),
EO1QwenProcessorStep(
processor_name=config.vlm_base,
@@ -247,12 +257,27 @@ def make_eo1_pre_post_processors(
image_max_pixels=config.image_max_pixels,
use_fast_processor=config.use_fast_processor,
),
steps.to_device,
DeviceProcessorStep(device=config.device),
]
output_steps: list[ProcessorStep] = [
steps.unnormalize,
steps.to_cpu,
UnnormalizerProcessorStep(
features=config.output_features,
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
DeviceProcessorStep(device="cpu"),
]
return make_policy_processor_pipelines(input_steps=input_steps, output_steps=output_steps)
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
@@ -27,11 +27,9 @@ from lerobot.utils.import_utils import _transformers_available, require_package
if TYPE_CHECKING or _transformers_available:
from transformers import AutoModel, AutoTokenizer
from transformers.utils import is_flash_attn_2_available
else:
AutoModel = None
AutoTokenizer = None
is_flash_attn_2_available = None
IMAGENET_MEAN = (0.485, 0.456, 0.406)
IMAGENET_STD = (0.229, 0.224, 0.225)
@@ -137,13 +135,9 @@ class InternVL3Embedder(nn.Module):
raise ValueError(f"Unsupported EVO1 vlm_dtype '{model_dtype}'") from exc
self.model_dtype = model_dtype
attn_implementation = (
"flash_attention_2" if (use_flash_attn and is_flash_attn_2_available()) else "eager"
)
attn_implementation = "flash_attention_2" if (use_flash_attn and _flash_attn_available()) else "eager"
if use_flash_attn and attn_implementation == "eager":
logger.warning(
"Flash Attention 2 is unavailable on this runtime. Falling back to eager attention."
)
logger.warning("flash_attn is not installed. Falling back to eager attention.")
self.model = AutoModel.from_pretrained(
model_name,
@@ -365,3 +359,11 @@ class InternVL3Embedder(nn.Module):
@property
def device(self) -> torch.device:
return next(self.model.parameters()).device
def _flash_attn_available() -> bool:
try:
import flash_attn # noqa: F401
except ModuleNotFoundError:
return False
return True
+318 -66
View File
@@ -17,7 +17,6 @@
from __future__ import annotations
import importlib
import inspect
import logging
from typing import TYPE_CHECKING, Any, TypedDict, Unpack
@@ -45,10 +44,26 @@ from lerobot.utils.constants import (
)
from lerobot.utils.feature_utils import dataset_to_policy_features
from .act.configuration_act import ACTConfig
from .diffusion.configuration_diffusion import DiffusionConfig
from .eo1.configuration_eo1 import EO1Config
from .evo1.configuration_evo1 import Evo1Config
from .fastwam.configuration_fastwam import FastWAMConfig
from .gaussian_actor.configuration_gaussian_actor import GaussianActorConfig
from .groot.configuration_groot import GrootConfig
from .lingbot_va.configuration_lingbot_va import LingBotVAConfig
from .molmoact2.configuration_molmoact2 import MolmoAct2Config
from .multi_task_dit.configuration_multi_task_dit import MultiTaskDiTConfig
from .pi0.configuration_pi0 import PI0Config
from .pi05.configuration_pi05 import PI05Config
from .pretrained import PreTrainedPolicy
from .smolvla.configuration_smolvla import SmolVLAConfig
from .tdmpc.configuration_tdmpc import TDMPCConfig
from .utils import validate_visual_features_consistency
from .vla_jepa.configuration_vla_jepa import VLAJEPAConfig
from .vqbet.configuration_vqbet import VQBeTConfig
from .wall_x.configuration_wall_x import WallXConfig
from .xvla.configuration_xvla import XVLAConfig
def _reconnect_relative_absolute_steps(
@@ -73,23 +88,100 @@ def get_policy_class(name: str) -> type[PreTrainedPolicy]:
"""
Retrieves a policy class by its registered name.
Resolution is convention-based: the draccus-registered config class of ``name`` is
looked up, its ``configuration_*`` module path is rewritten to ``modeling_*``, and
the ``<X>Policy`` class is imported from there. The modeling module is only imported
at call time, keeping heavy optional dependencies lazy. This works for both built-in
policies and third-party lerobot plugins (anything registered via
``@PreTrainedConfig.register_subclass``).
This function uses dynamic imports to avoid loading all policy classes into memory
at once, improving startup time and reducing dependencies.
Args:
name: The registered name of the policy (e.g. "act", "diffusion", "pi0").
name: The name of the policy. Supported names are "tdmpc", "diffusion", "act",
"multi_task_dit", "vqbet", "pi0", "pi05", "gaussian_actor", "smolvla", "wall_x",
"molmoact2", "eo1", "evo1".
Returns:
The policy class corresponding to the given name.
Raises:
ValueError: If the policy name is not registered.
ImportError: If the policy's optional dependencies are not installed.
NotImplementedError: If the policy name is not recognized.
"""
return _get_policy_cls_from_policy_name(name=name)
if name == "tdmpc":
from .tdmpc.modeling_tdmpc import TDMPCPolicy
return TDMPCPolicy
elif name == "diffusion":
from .diffusion.modeling_diffusion import DiffusionPolicy
return DiffusionPolicy
elif name == "act":
from .act.modeling_act import ACTPolicy
return ACTPolicy
elif name == "multi_task_dit":
from .multi_task_dit.modeling_multi_task_dit import MultiTaskDiTPolicy
return MultiTaskDiTPolicy
elif name == "vqbet":
from .vqbet.modeling_vqbet import VQBeTPolicy
return VQBeTPolicy
elif name == "pi0":
from .pi0.modeling_pi0 import PI0Policy
return PI0Policy
elif name == "pi0_fast":
from .pi0_fast.modeling_pi0_fast import PI0FastPolicy
return PI0FastPolicy
elif name == "pi05":
from .pi05.modeling_pi05 import PI05Policy
return PI05Policy
elif name == "gaussian_actor":
from .gaussian_actor.modeling_gaussian_actor import GaussianActorPolicy
return GaussianActorPolicy
elif name == "smolvla":
from .smolvla.modeling_smolvla import SmolVLAPolicy
return SmolVLAPolicy
elif name == "groot":
from .groot.modeling_groot import GrootPolicy
return GrootPolicy
elif name == "xvla":
from .xvla.modeling_xvla import XVLAPolicy
return XVLAPolicy
elif name == "wall_x":
from .wall_x.modeling_wall_x import WallXPolicy
return WallXPolicy
elif name == "eo1":
from .eo1.modeling_eo1 import EO1Policy
return EO1Policy
elif name == "molmoact2":
from .molmoact2.modeling_molmoact2 import MolmoAct2Policy
return MolmoAct2Policy
elif name == "vla_jepa":
from .vla_jepa.modeling_vla_jepa import VLAJEPAPolicy
return VLAJEPAPolicy
elif name == "lingbot_va":
from .lingbot_va.modeling_lingbot_va import LingBotVAPolicy
return LingBotVAPolicy
elif name == "fastwam":
from .fastwam.modeling_fastwam import FastWAMPolicy
return FastWAMPolicy
elif name == "evo1":
from .evo1.modeling_evo1 import Evo1Policy
return Evo1Policy
else:
try:
return _get_policy_cls_from_policy_name(name=name)
except Exception as e:
raise ValueError(f"Policy type '{name}' is not available.") from e
def make_policy_config(policy_type: str, **kwargs) -> PreTrainedConfig:
@@ -100,8 +192,9 @@ def make_policy_config(policy_type: str, **kwargs) -> PreTrainedConfig:
mapping a string identifier to the corresponding config class.
Args:
policy_type: The registered type of the policy (any name registered via
``@PreTrainedConfig.register_subclass``, e.g. "act", "diffusion", "pi0").
policy_type: The type of the policy. Supported types include "tdmpc",
"multi_task_dit", "diffusion", "act", "vqbet", "pi0", "pi05", "gaussian_actor",
"smolvla", "wall_x", "molmoact2", "eo1", "evo1".
**kwargs: Keyword arguments to be passed to the configuration class constructor.
Returns:
@@ -110,11 +203,48 @@ def make_policy_config(policy_type: str, **kwargs) -> PreTrainedConfig:
Raises:
ValueError: If the `policy_type` is not recognized.
"""
try:
config_cls = PreTrainedConfig.get_choice_class(policy_type)
except Exception as e:
raise ValueError(f"Policy type '{policy_type}' is not available.") from e
return config_cls(**kwargs)
if policy_type == "tdmpc":
return TDMPCConfig(**kwargs)
elif policy_type == "diffusion":
return DiffusionConfig(**kwargs)
elif policy_type == "act":
return ACTConfig(**kwargs)
elif policy_type == "multi_task_dit":
return MultiTaskDiTConfig(**kwargs)
elif policy_type == "vqbet":
return VQBeTConfig(**kwargs)
elif policy_type == "pi0":
return PI0Config(**kwargs)
elif policy_type == "pi05":
return PI05Config(**kwargs)
elif policy_type == "gaussian_actor":
return GaussianActorConfig(**kwargs)
elif policy_type == "smolvla":
return SmolVLAConfig(**kwargs)
elif policy_type == "groot":
return GrootConfig(**kwargs)
elif policy_type == "xvla":
return XVLAConfig(**kwargs)
elif policy_type == "wall_x":
return WallXConfig(**kwargs)
elif policy_type == "eo1":
return EO1Config(**kwargs)
elif policy_type == "molmoact2":
return MolmoAct2Config(**kwargs)
elif policy_type == "vla_jepa":
return VLAJEPAConfig(**kwargs)
elif policy_type == "lingbot_va":
return LingBotVAConfig(**kwargs)
elif policy_type == "fastwam":
return FastWAMConfig(**kwargs)
elif policy_type == "evo1":
return Evo1Config(**kwargs)
else:
try:
config_cls = PreTrainedConfig.get_choice_class(policy_type)
return config_cls(**kwargs)
except Exception as e:
raise ValueError(f"Policy type '{policy_type}' is not available.") from e
class ProcessorConfigKwargs(TypedDict, total=False):
@@ -168,7 +298,8 @@ def make_pre_post_processors(
A tuple containing the input (pre-processor) and output (post-processor) pipelines.
Raises:
ValueError: If no processor factory exists for the given policy configuration type.
NotImplementedError: If a processor factory is not implemented for the given
policy configuration type.
"""
if pretrained_path:
if isinstance(policy_cfg, GrootConfig):
@@ -220,13 +351,166 @@ def make_pre_post_processors(
)
return preprocessor, postprocessor
# Create new processors from the policy config, resolving the per-policy factory
# function by naming convention (lazy import keeps optional dependencies optional).
return _make_processors_from_policy_config(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
dataset_meta=kwargs.get("dataset_meta"),
)
# Create a new processor based on policy type
if isinstance(policy_cfg, TDMPCConfig):
from .tdmpc.processor_tdmpc import make_tdmpc_pre_post_processors
processors = make_tdmpc_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, DiffusionConfig):
from .diffusion.processor_diffusion import make_diffusion_pre_post_processors
processors = make_diffusion_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, ACTConfig):
from .act.processor_act import make_act_pre_post_processors
processors = make_act_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, MultiTaskDiTConfig):
from .multi_task_dit.processor_multi_task_dit import (
make_multi_task_dit_pre_post_processors,
)
processors = make_multi_task_dit_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, VQBeTConfig):
from .vqbet.processor_vqbet import make_vqbet_pre_post_processors
processors = make_vqbet_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, PI0Config):
from .pi0.processor_pi0 import make_pi0_pre_post_processors
processors = make_pi0_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, PI05Config):
from .pi05.processor_pi05 import make_pi05_pre_post_processors
processors = make_pi05_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, GaussianActorConfig):
from .gaussian_actor.processor_gaussian_actor import make_gaussian_actor_pre_post_processors
processors = make_gaussian_actor_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, SmolVLAConfig):
from .smolvla.processor_smolvla import make_smolvla_pre_post_processors
processors = make_smolvla_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, GrootConfig):
from .groot.processor_groot import make_groot_pre_post_processors
processors = make_groot_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
dataset_meta=kwargs.get("dataset_meta"),
)
elif isinstance(policy_cfg, XVLAConfig):
from .xvla.processor_xvla import (
make_xvla_pre_post_processors,
)
processors = make_xvla_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, WallXConfig):
from .wall_x.processor_wall_x import make_wall_x_pre_post_processors
processors = make_wall_x_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, EO1Config):
from .eo1.processor_eo1 import make_eo1_pre_post_processors
processors = make_eo1_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, Evo1Config):
from .evo1.processor_evo1 import make_evo1_pre_post_processors
processors = make_evo1_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, MolmoAct2Config):
from .molmoact2.processor_molmoact2 import make_molmoact2_pre_post_processors
processors = make_molmoact2_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
dataset_meta=kwargs.get("dataset_meta"),
)
elif isinstance(policy_cfg, VLAJEPAConfig):
from .vla_jepa.processor_vla_jepa import make_vla_jepa_pre_post_processors
processors = make_vla_jepa_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, LingBotVAConfig):
from .lingbot_va.processor_lingbot_va import make_lingbot_va_pre_post_processors
processors = make_lingbot_va_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
elif isinstance(policy_cfg, FastWAMConfig):
from .fastwam.processor_fastwam import make_fastwam_pre_post_processors
processors = make_fastwam_pre_post_processors(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
else:
try:
processors = _make_processors_from_policy_config(
config=policy_cfg,
dataset_stats=kwargs.get("dataset_stats"),
)
except Exception as e:
raise ValueError(f"Processor for policy type '{policy_cfg.type}' is not implemented.") from e
return processors
def make_policy(
@@ -370,12 +654,10 @@ def make_policy(
return policy
def _get_policy_cls_from_policy_name(name: str) -> type[PreTrainedPolicy]:
def _get_policy_cls_from_policy_name(name: str) -> type[PreTrainedConfig]:
"""Get policy class from its registered name using dynamic imports.
Works for built-in policies and 3rd party lerobot plugins alike: the config class
registered under ``name`` is resolved via the draccus ChoiceRegistry, and the policy
class is imported from the sibling ``modeling_*`` module by naming convention.
This is used as a helper function to import policies from 3rd party lerobot plugins.
Args:
name: The name of the policy.
@@ -401,39 +683,22 @@ def _get_policy_cls_from_policy_name(name: str) -> type[PreTrainedPolicy]:
"configuration_", "modeling_"
) # e.g., configuration_diffusion -> modeling_diffusion
try:
module = importlib.import_module(module_path)
except ModuleNotFoundError as e:
if e.name == module_path:
# The modeling_* module itself does not exist for this policy type. A missing
# optional dependency inside an existing module propagates unchanged instead,
# so its actionable install hint stays visible.
raise ValueError(f"Policy class for '{name}' is not implemented.") from e
raise
policy_cls = getattr(module, cls_name, None)
if policy_cls is None:
raise ValueError(
f"Policy class '{cls_name}' not found in '{module_path}'. "
f"Policies must expose '<Name>Policy' in the sibling 'modeling_*' module by naming convention."
)
module = importlib.import_module(module_path)
policy_cls = getattr(module, cls_name)
return policy_cls
def _make_processors_from_policy_config(
config: PreTrainedConfig,
dataset_stats: dict[str, dict[str, torch.Tensor]] | None = None,
dataset_meta: Any | None = None,
) -> tuple[Any, Any]:
"""Create pre- and post-processors from a policy configuration using dynamic imports.
Resolves ``make_{type}_pre_post_processors`` from the policy's ``processor_*`` module
by naming convention. Works for built-in policies and 3rd party lerobot plugins.
This is used as a helper function to import processor factories from 3rd party lerobot plugins.
Args:
config: The policy configuration object.
dataset_stats: Dataset statistics for normalization.
dataset_meta: Dataset metadata, forwarded only to factories that declare a
``dataset_meta`` parameter (e.g. groot, molmoact2).
Returns:
A tuple containing the input (pre-processor) and output (post-processor) pipelines.
"""
@@ -446,19 +711,6 @@ def _make_processors_from_policy_config(
logging.debug(
f"Instantiating pre/post processors using function '{function_name}' from module '{module_path}'"
)
try:
module = importlib.import_module(module_path)
except ModuleNotFoundError as e:
if e.name == module_path:
# The processor_* module itself does not exist for this policy type. A missing
# optional dependency inside an existing module propagates unchanged instead,
# so its actionable install hint stays visible.
raise ValueError(f"Processor for policy type '{policy_type}' is not implemented.") from e
raise
function = getattr(module, function_name, None)
if function is None:
raise ValueError(f"Processor for policy type '{policy_type}' is not implemented.")
call_kwargs: dict[str, Any] = {"dataset_stats": dataset_stats}
if "dataset_meta" in inspect.signature(function).parameters:
call_kwargs["dataset_meta"] = dataset_meta
return function(config, **call_kwargs)
module = importlib.import_module(module_path)
function = getattr(module, function_name)
return function(config, dataset_stats=dataset_stats)
@@ -22,11 +22,20 @@ import torch
from lerobot.configs import PipelineFeatureType, PolicyFeature
from lerobot.processor import (
ActionProcessorStep,
AddBatchDimensionProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
ProcessorStepRegistry,
make_default_policy_processor_steps,
make_policy_processor_pipelines,
RenameObservationsProcessorStep,
UnnormalizerProcessorStep,
policy_action_to_transition,
transition_to_policy_action,
)
from lerobot.utils.constants import (
POLICY_POSTPROCESSOR_DEFAULT_NAME,
POLICY_PREPROCESSOR_DEFAULT_NAME,
)
from .configuration_fastwam import FastWAMConfig
@@ -96,20 +105,38 @@ def make_fastwam_pre_post_processors(
# anyway) and unsafe across fine-tuning: its `resize_size` would be inherited from the base
# checkpoint's camera geometry, not this dataset's, making the concatenation N_cameras x too wide.
steps = make_default_policy_processor_steps(config, normalization_stats, normalizer_device=config.device)
input_steps = [
steps.rename_observations,
steps.add_batch_dim,
steps.to_device,
steps.normalize,
RenameObservationsProcessorStep(rename_map={}),
AddBatchDimensionProcessorStep(),
DeviceProcessorStep(device=config.device),
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=normalization_stats,
device=config.device,
),
]
output_steps = [
steps.unnormalize,
UnnormalizerProcessorStep(
features=config.output_features,
norm_map=config.normalization_mapping,
stats=normalization_stats,
),
]
if config.toggle_action_dimensions:
output_steps.append(
FastWAMActionToggleProcessorStep(toggle_dimensions=config.toggle_action_dimensions)
)
output_steps.append(steps.to_cpu)
return make_policy_processor_pipelines(input_steps=input_steps, output_steps=output_steps)
output_steps.append(DeviceProcessorStep(device="cpu"))
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
@@ -20,10 +20,17 @@ from typing import Any
import torch
from lerobot.processor import (
AddBatchDimensionProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
make_default_pre_post_processors,
RenameObservationsProcessorStep,
UnnormalizerProcessorStep,
policy_action_to_transition,
transition_to_policy_action,
)
from lerobot.utils.constants import POLICY_POSTPROCESSOR_DEFAULT_NAME, POLICY_PREPROCESSOR_DEFAULT_NAME
from .configuration_gaussian_actor import GaussianActorConfig
@@ -55,4 +62,33 @@ def make_gaussian_actor_pre_post_processors(
Returns:
A tuple containing the configured pre-processor and post-processor pipelines.
"""
return make_default_pre_post_processors(config, dataset_stats)
# Add remaining processors
input_steps = [
RenameObservationsProcessorStep(rename_map={}),
AddBatchDimensionProcessorStep(),
DeviceProcessorStep(device=config.device),
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
]
output_steps = [
UnnormalizerProcessorStep(
features=config.output_features, norm_map=config.normalization_mapping, stats=dataset_stats
),
DeviceProcessorStep(device="cpu"),
]
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
@@ -25,12 +25,19 @@ import torch
from lerobot.configs.types import FeatureType, NormalizationMode
from lerobot.processor import (
AddBatchDimensionProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
ProcessorStep,
RenameObservationsProcessorStep,
UnnormalizerProcessorStep,
make_default_policy_processor_steps,
make_policy_processor_pipelines,
)
from lerobot.processor.converters import policy_action_to_transition, transition_to_policy_action
from lerobot.utils.constants import (
POLICY_POSTPROCESSOR_DEFAULT_NAME,
POLICY_PREPROCESSOR_DEFAULT_NAME,
)
from .configuration_lingbot_va import LingBotVAConfig
@@ -45,13 +52,15 @@ def make_lingbot_va_pre_post_processors(
]:
"""Build the pre/post processor pipelines for LingBot-VA."""
steps = make_default_policy_processor_steps(config, dataset_stats)
input_steps: list[ProcessorStep] = [
steps.rename_observations,
steps.add_batch_dim,
steps.normalize,
steps.to_device,
RenameObservationsProcessorStep(rename_map={}),
AddBatchDimensionProcessorStep(),
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
DeviceProcessorStep(device=config.device),
]
# Unnormalize actions from [-1, 1] to physical units (QUANTILES) using q01/q99 restored from the checkpoint.
@@ -61,7 +70,18 @@ def make_lingbot_va_pre_post_processors(
norm_map={FeatureType.ACTION: NormalizationMode.QUANTILES},
stats=dataset_stats,
),
steps.to_cpu,
DeviceProcessorStep(device="cpu"),
]
return make_policy_processor_pipelines(input_steps=input_steps, output_steps=output_steps)
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
@@ -19,12 +19,18 @@ from typing import Any
import torch
from lerobot.processor import (
AddBatchDimensionProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
RenameObservationsProcessorStep,
TokenizerProcessorStep,
make_default_policy_processor_steps,
make_policy_processor_pipelines,
UnnormalizerProcessorStep,
policy_action_to_transition,
transition_to_policy_action,
)
from lerobot.utils.constants import POLICY_POSTPROCESSOR_DEFAULT_NAME, POLICY_PREPROCESSOR_DEFAULT_NAME
from .configuration_multi_task_dit import MultiTaskDiTConfig
@@ -60,11 +66,9 @@ def make_multi_task_dit_pre_post_processors(
A tuple containing the configured pre-processor and post-processor pipelines.
"""
steps = make_default_policy_processor_steps(config, dataset_stats, normalizer_device=config.device)
input_steps = [
steps.rename_observations,
steps.add_batch_dim,
RenameObservationsProcessorStep(rename_map={}),
AddBatchDimensionProcessorStep(),
TokenizerProcessorStep(
tokenizer_name=config.text_encoder_name,
padding=config.tokenizer_padding,
@@ -72,12 +76,32 @@ def make_multi_task_dit_pre_post_processors(
max_length=config.tokenizer_max_length,
truncation=config.tokenizer_truncation,
),
steps.to_device,
steps.normalize,
DeviceProcessorStep(device=config.device),
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
device=config.device,
),
]
output_steps = [
steps.unnormalize,
steps.to_cpu,
UnnormalizerProcessorStep(
features=config.output_features,
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
DeviceProcessorStep(device="cpu"),
]
return make_policy_processor_pipelines(input_steps=input_steps, output_steps=output_steps)
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
+32 -11
View File
@@ -21,16 +21,22 @@ import torch
from lerobot.configs import PipelineFeatureType, PolicyFeature
from lerobot.processor import (
AbsoluteActionsProcessorStep,
AddBatchDimensionProcessorStep,
ComplementaryDataProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
ProcessorStep,
ProcessorStepRegistry,
RelativeActionsProcessorStep,
RenameObservationsProcessorStep,
TokenizerProcessorStep,
make_default_policy_processor_steps,
make_policy_processor_pipelines,
UnnormalizerProcessorStep,
policy_action_to_transition,
transition_to_policy_action,
)
from lerobot.utils.constants import POLICY_POSTPROCESSOR_DEFAULT_NAME, POLICY_PREPROCESSOR_DEFAULT_NAME
from .configuration_pi0 import PI0Config
@@ -130,12 +136,10 @@ def make_pi0_pre_post_processors(
action_names=getattr(config, "action_feature_names", None),
)
steps = make_default_policy_processor_steps(config, dataset_stats)
# OpenPI order: raw → relative → normalize → model → unnormalize → absolute
input_steps: list[ProcessorStep] = [
steps.rename_observations, # To mimic the same processor as pretrained one
steps.add_batch_dim,
RenameObservationsProcessorStep(rename_map={}), # To mimic the same processor as pretrained one
AddBatchDimensionProcessorStep(),
Pi0NewLineProcessor(), # Add newlines before tokenization for PaliGemma
TokenizerProcessorStep(
tokenizer_name="google/paligemma-3b-pt-224",
@@ -143,15 +147,32 @@ def make_pi0_pre_post_processors(
padding_side="right",
padding="max_length",
),
steps.to_device,
DeviceProcessorStep(device=config.device),
relative_step,
steps.normalize,
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
]
output_steps: list[ProcessorStep] = [
steps.unnormalize,
UnnormalizerProcessorStep(
features=config.output_features, norm_map=config.normalization_mapping, stats=dataset_stats
),
AbsoluteActionsProcessorStep(enabled=config.use_relative_actions, relative_step=relative_step),
steps.to_cpu,
DeviceProcessorStep(device="cpu"),
]
return make_policy_processor_pipelines(input_steps=input_steps, output_steps=output_steps)
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
+36 -12
View File
@@ -24,17 +24,26 @@ import torch
from lerobot.configs import PipelineFeatureType, PolicyFeature
from lerobot.processor import (
AbsoluteActionsProcessorStep,
AddBatchDimensionProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
ProcessorStep,
ProcessorStepRegistry,
RelativeActionsProcessorStep,
RenameObservationsProcessorStep,
TokenizerProcessorStep,
make_default_policy_processor_steps,
make_policy_processor_pipelines,
UnnormalizerProcessorStep,
policy_action_to_transition,
transition_to_policy_action,
)
from lerobot.types import EnvTransition, TransitionKey
from lerobot.utils.constants import OBS_STATE
from lerobot.utils.constants import (
OBS_STATE,
POLICY_POSTPROCESSOR_DEFAULT_NAME,
POLICY_PREPROCESSOR_DEFAULT_NAME,
)
from .configuration_pi05 import PI05Config
@@ -126,16 +135,18 @@ def make_pi05_pre_post_processors(
action_names=getattr(config, "action_feature_names", None),
)
steps = make_default_policy_processor_steps(config, dataset_stats)
# OpenPI order: raw → relative → normalize → model → unnormalize → absolute
input_steps: list[ProcessorStep] = [
steps.rename_observations, # To mimic the same processor as pretrained one
steps.add_batch_dim,
RenameObservationsProcessorStep(rename_map={}), # To mimic the same processor as pretrained one
AddBatchDimensionProcessorStep(),
relative_step,
# NOTE: NormalizerProcessorStep MUST come before Pi05PrepareStateTokenizerProcessorStep
# because the tokenizer step expects normalized state in [-1, 1] range for discretization
steps.normalize,
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
Pi05PrepareStateTokenizerProcessorStep(max_state_dim=config.max_state_dim),
TokenizerProcessorStep(
tokenizer_name="google/paligemma-3b-pt-224",
@@ -143,13 +154,26 @@ def make_pi05_pre_post_processors(
padding_side="right",
padding="max_length",
),
steps.to_device,
DeviceProcessorStep(device=config.device),
]
output_steps: list[ProcessorStep] = [
steps.unnormalize,
UnnormalizerProcessorStep(
features=config.output_features, norm_map=config.normalization_mapping, stats=dataset_stats
),
AbsoluteActionsProcessorStep(enabled=config.use_relative_actions, relative_step=relative_step),
steps.to_cpu,
DeviceProcessorStep(device="cpu"),
]
return make_policy_processor_pipelines(input_steps=input_steps, output_steps=output_steps)
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
@@ -25,17 +25,26 @@ from lerobot.configs import PipelineFeatureType, PolicyFeature
from lerobot.processor import (
AbsoluteActionsProcessorStep,
ActionTokenizerProcessorStep,
AddBatchDimensionProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
ProcessorStep,
ProcessorStepRegistry,
RelativeActionsProcessorStep,
RenameObservationsProcessorStep,
TokenizerProcessorStep,
make_default_policy_processor_steps,
make_policy_processor_pipelines,
UnnormalizerProcessorStep,
policy_action_to_transition,
transition_to_policy_action,
)
from lerobot.types import EnvTransition, TransitionKey
from lerobot.utils.constants import OBS_STATE
from lerobot.utils.constants import (
OBS_STATE,
POLICY_POSTPROCESSOR_DEFAULT_NAME,
POLICY_PREPROCESSOR_DEFAULT_NAME,
)
from .configuration_pi0_fast import PI0FastConfig
@@ -126,8 +135,6 @@ def make_pi0_fast_pre_post_processors(
action_names=getattr(config, "action_feature_names", None),
)
steps = make_default_policy_processor_steps(config, dataset_stats)
# Pi0Fast order: relative → normalize → tokenize → model → unnormalize → absolute
# This matches pi0/pi0.5: RelativeActionsProcessorStep runs first on raw absolute actions,
# caching the raw state. NormalizerProcessorStep then normalizes the raw relative actions,
@@ -137,10 +144,14 @@ def make_pi0_fast_pre_post_processors(
# before Pi0FastPrepareStateAndLanguageTokenizerProcessorStep, so the state tokenizer
# continues to receive normalized state in [-1, 1] as expected.
input_steps: list[ProcessorStep] = [
steps.rename_observations, # To mimic the same processor as pretrained one
steps.add_batch_dim,
RenameObservationsProcessorStep(rename_map={}), # To mimic the same processor as pretrained one
AddBatchDimensionProcessorStep(),
relative_step,
steps.normalize,
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
Pi0FastPrepareStateAndLanguageTokenizerProcessorStep(max_state_dim=config.max_state_dim),
TokenizerProcessorStep(
tokenizer_name=config.text_tokenizer_name,
@@ -154,13 +165,26 @@ def make_pi0_fast_pre_post_processors(
fast_skip_tokens=config.fast_skip_tokens,
paligemma_tokenizer_name=config.text_tokenizer_name,
),
steps.to_device,
DeviceProcessorStep(device=config.device),
]
output_steps: list[ProcessorStep] = [
steps.unnormalize,
UnnormalizerProcessorStep(
features=config.output_features, norm_map=config.normalization_mapping, stats=dataset_stats
),
AbsoluteActionsProcessorStep(enabled=config.use_relative_actions, relative_step=relative_step),
steps.to_cpu,
DeviceProcessorStep(device="cpu"),
]
return make_policy_processor_pipelines(input_steps=input_steps, output_steps=output_steps)
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
+21 -4
View File
@@ -23,6 +23,8 @@ from pathlib import Path
from tempfile import TemporaryDirectory
from typing import TYPE_CHECKING, TypedDict, TypeVar, Unpack
import packaging
import safetensors
from huggingface_hub import HfApi, ModelCard, ModelCardData, hf_hub_download, save_torch_state_dict
from huggingface_hub.constants import SAFETENSORS_SINGLE_FILE
from huggingface_hub.errors import HfHubHTTPError
@@ -32,7 +34,6 @@ from torch import Tensor, nn
from lerobot.__version__ import __version__
from lerobot.configs import PreTrainedConfig
from lerobot.configs.train import TrainPipelineConfig
from lerobot.utils.device_utils import resolve_safetensors_device
from lerobot.utils.hub import HubMixin
from .utils import log_model_loading_keys
@@ -220,10 +221,26 @@ class PreTrainedPolicy(nn.Module, HubMixin, abc.ABC):
@classmethod
def _load_as_safetensor(cls, model: T, model_file: str, map_location: str, strict: bool) -> T:
missing_keys, unexpected_keys = load_model_as_safetensor(
model, model_file, strict=strict, device=resolve_safetensors_device(map_location)
)
# Create base kwargs
kwargs = {"strict": strict}
# Add device parameter for newer versions that support it
if packaging.version.parse(safetensors.__version__) >= packaging.version.parse("0.4.3"):
kwargs["device"] = map_location
# Load the model with appropriate kwargs
missing_keys, unexpected_keys = load_model_as_safetensor(model, model_file, **kwargs)
log_model_loading_keys(missing_keys, unexpected_keys)
# For older versions, manually move to device if needed
if "device" not in kwargs and map_location != "cpu":
logging.warning(
"Loading model weights on other devices than 'cpu' is not supported natively in your version of safetensors."
" This means that the model is loaded on 'cpu' first and then copied to the device."
" This leads to a slower loading time."
" Please update safetensors to version 0.4.3 or above for improved performance."
)
model.to(map_location)
return model
@abc.abstractmethod
@@ -19,13 +19,19 @@ from typing import Any
import torch
from lerobot.processor import (
AddBatchDimensionProcessorStep,
DeviceProcessorStep,
NewLineTaskProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
RenameObservationsProcessorStep,
TokenizerProcessorStep,
make_default_policy_processor_steps,
make_policy_processor_pipelines,
UnnormalizerProcessorStep,
policy_action_to_transition,
transition_to_policy_action,
)
from lerobot.utils.constants import POLICY_POSTPROCESSOR_DEFAULT_NAME, POLICY_PREPROCESSOR_DEFAULT_NAME
from .configuration_smolvla import SmolVLAConfig
@@ -60,11 +66,9 @@ def make_smolvla_pre_post_processors(
A tuple containing the configured pre-processor and post-processor pipelines.
"""
steps = make_default_policy_processor_steps(config, dataset_stats)
input_steps = [
steps.rename_observations, # To mimic the same processor as pretrained one
steps.add_batch_dim,
RenameObservationsProcessorStep(rename_map={}), # To mimic the same processor as pretrained one
AddBatchDimensionProcessorStep(),
NewLineTaskProcessorStep(),
TokenizerProcessorStep(
tokenizer_name=config.vlm_model_name,
@@ -72,11 +76,28 @@ def make_smolvla_pre_post_processors(
padding_side="right",
max_length=config.tokenizer_max_length,
),
steps.to_device,
steps.normalize,
DeviceProcessorStep(device=config.device),
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
]
output_steps = [
steps.unnormalize,
steps.to_cpu,
UnnormalizerProcessorStep(
features=config.output_features, norm_map=config.normalization_mapping, stats=dataset_stats
),
DeviceProcessorStep(device="cpu"),
]
return make_policy_processor_pipelines(input_steps=input_steps, output_steps=output_steps)
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
+37 -2
View File
@@ -19,10 +19,17 @@ from typing import Any
import torch
from lerobot.processor import (
AddBatchDimensionProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
make_default_pre_post_processors,
RenameObservationsProcessorStep,
UnnormalizerProcessorStep,
policy_action_to_transition,
transition_to_policy_action,
)
from lerobot.utils.constants import POLICY_POSTPROCESSOR_DEFAULT_NAME, POLICY_PREPROCESSOR_DEFAULT_NAME
from .configuration_tdmpc import TDMPCConfig
@@ -54,4 +61,32 @@ def make_tdmpc_pre_post_processors(
Returns:
A tuple containing the configured pre-processor and post-processor pipelines.
"""
return make_default_pre_post_processors(config, dataset_stats)
input_steps = [
RenameObservationsProcessorStep(rename_map={}),
AddBatchDimensionProcessorStep(),
DeviceProcessorStep(device=config.device),
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
]
output_steps = [
UnnormalizerProcessorStep(
features=config.output_features, norm_map=config.normalization_mapping, stats=dataset_stats
),
DeviceProcessorStep(device="cpu"),
]
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
@@ -20,16 +20,20 @@ import torch
from lerobot.policies.vla_jepa.configuration_vla_jepa import VLAJEPAConfig
from lerobot.processor import (
AddBatchDimensionProcessorStep,
DeviceProcessorStep,
EnvTransition,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
ProcessorStep,
ProcessorStepRegistry,
RenameObservationsProcessorStep,
TransitionKey,
UnnormalizerProcessorStep,
make_default_policy_processor_steps,
make_policy_processor_pipelines,
)
from lerobot.processor.converters import policy_action_to_transition, transition_to_policy_action
from lerobot.utils.constants import POLICY_POSTPROCESSOR_DEFAULT_NAME, POLICY_PREPROCESSOR_DEFAULT_NAME
@ProcessorStepRegistry.register(name="vla_jepa_clip_actions")
@@ -108,12 +112,15 @@ def make_vla_jepa_pre_post_processors(
PolicyProcessorPipeline[PolicyAction, PolicyAction],
]:
features = {**config.input_features, **config.output_features}
steps = make_default_policy_processor_steps(config, dataset_stats)
input_steps = [
steps.rename_observations,
steps.add_batch_dim,
steps.to_device,
steps.normalize,
RenameObservationsProcessorStep(rename_map={}),
AddBatchDimensionProcessorStep(),
DeviceProcessorStep(device=config.device),
NormalizerProcessorStep(
features=features,
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
]
output_steps: list[ProcessorStep] = []
if config.clip_normalized_actions:
@@ -122,8 +129,6 @@ def make_vla_jepa_pre_post_processors(
output_steps.append(
PreSnapGripperProcessorStep(gripper_dim=config.gripper_dim, threshold=config.gripper_threshold)
)
# NOTE: unlike the default policy unnormalizer (output features only), VLA-JEPA
# unnormalizes over BOTH input and output features.
output_steps.append(
UnnormalizerProcessorStep(
features=features,
@@ -135,5 +140,16 @@ def make_vla_jepa_pre_post_processors(
output_steps.append(
BinarizeGripperProcessorStep(gripper_dim=config.gripper_dim, threshold=config.gripper_threshold)
)
output_steps.append(steps.to_cpu)
return make_policy_processor_pipelines(input_steps=input_steps, output_steps=output_steps)
output_steps.append(DeviceProcessorStep(device="cpu"))
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
+37 -2
View File
@@ -20,10 +20,17 @@ from typing import Any
import torch
from lerobot.processor import (
AddBatchDimensionProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
make_default_pre_post_processors,
RenameObservationsProcessorStep,
UnnormalizerProcessorStep,
policy_action_to_transition,
transition_to_policy_action,
)
from lerobot.utils.constants import POLICY_POSTPROCESSOR_DEFAULT_NAME, POLICY_PREPROCESSOR_DEFAULT_NAME
from .configuration_vqbet import VQBeTConfig
@@ -55,4 +62,32 @@ def make_vqbet_pre_post_processors(
Returns:
A tuple containing the configured pre-processor and post-processor pipelines.
"""
return make_default_pre_post_processors(config, dataset_stats)
input_steps = [
RenameObservationsProcessorStep(rename_map={}), # Let the possibility to the user to rename the keys
AddBatchDimensionProcessorStep(),
DeviceProcessorStep(device=config.device),
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
]
output_steps = [
UnnormalizerProcessorStep(
features=config.output_features, norm_map=config.normalization_mapping, stats=dataset_stats
),
DeviceProcessorStep(device="cpu"),
]
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
+32 -11
View File
@@ -20,13 +20,19 @@ import torch
from lerobot.configs import PipelineFeatureType, PolicyFeature
from lerobot.processor import (
AddBatchDimensionProcessorStep,
ComplementaryDataProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
ProcessorStepRegistry,
make_default_policy_processor_steps,
make_policy_processor_pipelines,
RenameObservationsProcessorStep,
UnnormalizerProcessorStep,
policy_action_to_transition,
transition_to_policy_action,
)
from lerobot.utils.constants import POLICY_POSTPROCESSOR_DEFAULT_NAME, POLICY_PREPROCESSOR_DEFAULT_NAME
from .configuration_wall_x import WallXConfig
@@ -59,22 +65,37 @@ def make_wall_x_pre_post_processors(
A tuple containing the configured pre-processor and post-processor pipelines
"""
steps = make_default_policy_processor_steps(config, dataset_stats)
input_steps = [
steps.rename_observations,
steps.add_batch_dim,
RenameObservationsProcessorStep(rename_map={}),
AddBatchDimensionProcessorStep(),
WallXTaskProcessor(), # Process task description
steps.normalize,
steps.to_device,
NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
DeviceProcessorStep(device=config.device),
]
output_steps = [
steps.unnormalize,
steps.to_cpu,
UnnormalizerProcessorStep(
features=config.output_features, norm_map=config.normalization_mapping, stats=dataset_stats
),
DeviceProcessorStep(device="cpu"),
]
return make_policy_processor_pipelines(input_steps=input_steps, output_steps=output_steps)
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
@ProcessorStepRegistry.register(name="wall_x_task_processor")
+34 -11
View File
@@ -22,14 +22,19 @@ import torch
from lerobot.configs import PipelineFeatureType, PolicyFeature
from lerobot.processor import (
AddBatchDimensionProcessorStep,
DeviceProcessorStep,
NormalizerProcessorStep,
ObservationProcessorStep,
PolicyAction,
PolicyProcessorPipeline,
ProcessorStep,
ProcessorStepRegistry,
RenameObservationsProcessorStep,
TokenizerProcessorStep,
make_default_policy_processor_steps,
make_policy_processor_pipelines,
UnnormalizerProcessorStep,
policy_action_to_transition,
transition_to_policy_action,
)
from lerobot.types import EnvTransition, TransitionKey
from lerobot.utils.constants import (
@@ -37,6 +42,8 @@ from lerobot.utils.constants import (
OBS_IMAGES,
OBS_PREFIX,
OBS_STATE,
POLICY_POSTPROCESSOR_DEFAULT_NAME,
POLICY_PREPROCESSOR_DEFAULT_NAME,
)
from .configuration_xvla import XVLAConfig
@@ -54,11 +61,10 @@ def make_xvla_pre_post_processors(
Build the LeRobot processor pipelines for XVLA.
"""
steps = make_default_policy_processor_steps(config, dataset_stats)
features = {**config.input_features, **config.output_features}
input_steps = [
steps.rename_observations,
steps.add_batch_dim,
RenameObservationsProcessorStep(rename_map={}),
AddBatchDimensionProcessorStep(),
TokenizerProcessorStep(
tokenizer_name=config.tokenizer_name,
max_length=config.tokenizer_max_length,
@@ -68,15 +74,32 @@ def make_xvla_pre_post_processors(
XVLAImageToFloatProcessorStep(),
XVLAImageNetNormalizeProcessorStep(),
XVLAAddDomainIdProcessorStep(),
steps.to_device,
steps.normalize,
DeviceProcessorStep(device=config.device),
NormalizerProcessorStep(
features=features, norm_map=config.normalization_mapping, stats=dataset_stats
),
]
output_steps = [
steps.unnormalize,
steps.to_cpu,
UnnormalizerProcessorStep(
features=config.output_features,
norm_map=config.normalization_mapping,
stats=dataset_stats,
),
DeviceProcessorStep(device="cpu"),
]
return make_policy_processor_pipelines(input_steps=input_steps, output_steps=output_steps)
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
# Custom XVLA processor steps
-8
View File
@@ -42,14 +42,10 @@ from .delta_action_processor import MapDeltaActionToRobotActionStep, MapTensorTo
from .device_processor import DeviceProcessorStep
from .env_processor import IsaaclabArenaProcessorStep, LiberoProcessorStep
from .factory import (
DefaultPolicyProcessorSteps,
make_default_policy_processor_steps,
make_default_pre_post_processors,
make_default_processors,
make_default_robot_action_processor,
make_default_robot_observation_processor,
make_default_teleop_action_processor,
make_policy_processor_pipelines,
)
from .gym_action_processor import (
Numpy2TorchActionProcessorStep,
@@ -133,14 +129,10 @@ __all__ = [
"ImageCropResizeProcessorStep",
"InfoProcessorStep",
"InterventionActionProcessorStep",
"DefaultPolicyProcessorSteps",
"make_default_policy_processor_steps",
"make_default_pre_post_processors",
"make_default_processors",
"make_default_teleop_action_processor",
"make_default_robot_action_processor",
"make_default_robot_observation_processor",
"make_policy_processor_pipelines",
"AbsoluteActionsProcessorStep",
"RelativeActionsProcessorStep",
"MapDeltaActionToRobotActionStep",
+2 -114
View File
@@ -14,33 +14,15 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from dataclasses import dataclass
from typing import Any
from lerobot.types import RobotAction, RobotObservation
import torch
from lerobot.configs.policies import PreTrainedConfig
from lerobot.types import PolicyAction, RobotAction, RobotObservation
from lerobot.utils.constants import POLICY_POSTPROCESSOR_DEFAULT_NAME, POLICY_PREPROCESSOR_DEFAULT_NAME
from .batch_processor import AddBatchDimensionProcessorStep
from .converters import (
observation_to_transition,
policy_action_to_transition,
robot_action_observation_to_transition,
transition_to_observation,
transition_to_policy_action,
transition_to_robot_action,
)
from .device_processor import DeviceProcessorStep
from .normalize_processor import NormalizerProcessorStep, UnnormalizerProcessorStep
from .pipeline import (
IdentityProcessorStep,
PolicyProcessorPipeline,
ProcessorStep,
RobotProcessorPipeline,
)
from .rename_processor import RenameObservationsProcessorStep
from .pipeline import IdentityProcessorStep, RobotProcessorPipeline
def make_default_teleop_action_processor() -> RobotProcessorPipeline[
@@ -79,97 +61,3 @@ def make_default_processors():
robot_action_processor = make_default_robot_action_processor()
robot_observation_processor = make_default_robot_observation_processor()
return (teleop_action_processor, robot_action_processor, robot_observation_processor)
@dataclass
class DefaultPolicyProcessorSteps:
"""The canonical processor steps shared by most policies' pre/post pipelines.
Policies compose these in their own order (step ORDER is a Hub-serialized contract
and intentionally stays explicit per policy) and interleave their custom steps.
"""
rename_observations: RenameObservationsProcessorStep
add_batch_dim: AddBatchDimensionProcessorStep
to_device: DeviceProcessorStep
normalize: NormalizerProcessorStep
unnormalize: UnnormalizerProcessorStep
to_cpu: DeviceProcessorStep
def make_default_policy_processor_steps(
config: PreTrainedConfig,
dataset_stats: dict[str, dict[str, torch.Tensor]] | None = None,
*,
normalizer_device: torch.device | str | None = None,
) -> DefaultPolicyProcessorSteps:
"""Construct the canonical policy processor steps from a policy config.
Args:
config: A `PreTrainedConfig` providing `device`, `input_features`,
`output_features` and `normalization_mapping`.
dataset_stats: Dataset statistics used for (un)normalization.
normalizer_device: Device passed to `NormalizerProcessorStep` (some policies pin
their normalization stats to the policy device; most leave it unset).
"""
return DefaultPolicyProcessorSteps(
rename_observations=RenameObservationsProcessorStep(rename_map={}),
add_batch_dim=AddBatchDimensionProcessorStep(),
to_device=DeviceProcessorStep(device=config.device),
normalize=NormalizerProcessorStep(
features={**config.input_features, **config.output_features},
norm_map=config.normalization_mapping,
stats=dataset_stats,
device=normalizer_device,
),
unnormalize=UnnormalizerProcessorStep(
features=config.output_features, norm_map=config.normalization_mapping, stats=dataset_stats
),
to_cpu=DeviceProcessorStep(device="cpu"),
)
def make_policy_processor_pipelines(
input_steps: list[ProcessorStep],
output_steps: list[ProcessorStep],
) -> tuple[
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]],
PolicyProcessorPipeline[PolicyAction, PolicyAction],
]:
"""Wrap pre/post step lists into the canonical policy pipeline pair.
Uses the standard pipeline names (which determine the serialized JSON filenames on
the Hub) and the standard policy-action converters on the postprocessor.
"""
return (
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]](
steps=input_steps,
name=POLICY_PREPROCESSOR_DEFAULT_NAME,
),
PolicyProcessorPipeline[PolicyAction, PolicyAction](
steps=output_steps,
name=POLICY_POSTPROCESSOR_DEFAULT_NAME,
to_transition=policy_action_to_transition,
to_output=transition_to_policy_action,
),
)
def make_default_pre_post_processors(
config: PreTrainedConfig,
dataset_stats: dict[str, dict[str, torch.Tensor]] | None = None,
*,
normalizer_device: torch.device | str | None = None,
) -> tuple[
PolicyProcessorPipeline[dict[str, Any], dict[str, Any]],
PolicyProcessorPipeline[PolicyAction, PolicyAction],
]:
"""The pure-scaffold policy pipeline pair: Rename -> Batch -> Device -> Normalize,
and Unnormalize -> Device(cpu). Policies with custom steps or a different step order
compose `make_default_policy_processor_steps` themselves instead.
"""
s = make_default_policy_processor_steps(config, dataset_stats, normalizer_device=normalizer_device)
return make_policy_processor_pipelines(
input_steps=[s.rename_observations, s.add_batch_dim, s.to_device, s.normalize],
output_steps=[s.unnormalize, s.to_cpu],
)
@@ -126,7 +126,7 @@ class RelativeActionsProcessorStep(ProcessorStep):
observation = transition.get(TransitionKey.OBSERVATION, {})
state = observation.get(OBS_STATE) if observation else None
# Always cache state for the paired AbsoluteActionsProcessorStep.
# Always cache state for the paired AbsoluteActionsProcessorStep
if state is not None:
self._last_state = state
@@ -146,11 +146,6 @@ class RelativeActionsProcessorStep(ProcessorStep):
"""Return the cached ``observation.state`` used as the reference point for relative/absolute action conversions."""
return self._last_state
def set_cached_state(self, state: torch.Tensor | None) -> None:
"""Override the cached anchor state, e.g. to re-pin a chunk's anchor after the
per-tick pipeline overwrote it (see ``SyncInferenceEngine``)."""
self._last_state = state
def get_config(self) -> dict[str, Any]:
return {
"enabled": self.enabled,
+21 -4
View File
@@ -21,6 +21,8 @@ from pathlib import Path
from tempfile import TemporaryDirectory
from typing import TYPE_CHECKING, Any, TypeVar
import packaging
import safetensors
from huggingface_hub import HfApi, ModelCard, ModelCardData, hf_hub_download
from huggingface_hub.constants import SAFETENSORS_SINGLE_FILE
from huggingface_hub.errors import HfHubHTTPError
@@ -28,7 +30,6 @@ from safetensors.torch import load_model as load_model_as_safetensor, save_model
from torch import Tensor, nn
from lerobot.configs.rewards import RewardModelConfig
from lerobot.utils.device_utils import resolve_safetensors_device
from lerobot.utils.hub import HubMixin
if TYPE_CHECKING:
@@ -128,13 +129,29 @@ class PreTrainedRewardModel(nn.Module, HubMixin, abc.ABC):
@classmethod
def _load_as_safetensor(cls, model: T, model_file: str, map_location: str, strict: bool) -> T:
missing_keys, unexpected_keys = load_model_as_safetensor(
model, model_file, strict=strict, device=resolve_safetensors_device(map_location)
)
# Create base kwargs
kwargs = {"strict": strict}
# Add device parameter for newer versions that support it
if packaging.version.parse(safetensors.__version__) >= packaging.version.parse("0.4.3"):
kwargs["device"] = map_location
# Load the model with appropriate kwargs
missing_keys, unexpected_keys = load_model_as_safetensor(model, model_file, **kwargs)
if missing_keys:
logging.warning(f"Missing key(s) when loading model: {missing_keys}")
if unexpected_keys:
logging.warning(f"Unexpected key(s) when loading model: {unexpected_keys}")
# For older versions, manually move to device if needed
if "device" not in kwargs and map_location != "cpu":
logging.warning(
"Loading model weights on other devices than 'cpu' is not supported natively in your version of safetensors."
" This means that the model is loaded on 'cpu' first and then copied to the device."
" This leads to a slower loading time."
" Please update safetensors to version 0.4.3 or above for improved performance."
)
model.to(map_location)
return model
def get_optim_params(self):
@@ -14,7 +14,6 @@
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
from dataclasses import dataclass, field
from typing import Any
@@ -34,8 +33,6 @@ from lerobot.processor import (
)
from lerobot.utils.rotation import Rotation
logger = logging.getLogger(__name__)
@ProcessorStepRegistry.register("ee_reference_and_delta")
@dataclass
@@ -197,17 +194,11 @@ class EEBoundsAndSafety(RobotActionProcessorStep):
Attributes:
end_effector_bounds: A dictionary with "min" and "max" keys for position clipping.
max_ee_step_m: The maximum allowed change in position (in meters) between steps.
raise_on_jump: When ``True`` (default) an over-limit per-frame step raises
``ValueError`` (aborting the control loop). When ``False`` the step is
rate-limited to ``max_ee_step_m`` and a warning is logged instead — the
safer choice for live teleoperation, where a transient tracking glitch
should not crash the loop and leave the robot uncontrolled.
_last_pos: Internal state storing the last commanded position.
"""
end_effector_bounds: dict
max_ee_step_m: float = 0.05
raise_on_jump: bool = True
_last_pos: np.ndarray | None = field(default=None, init=False, repr=False)
def action(self, action: RobotAction) -> RobotAction:
@@ -235,19 +226,8 @@ class EEBoundsAndSafety(RobotActionProcessorStep):
dpos = pos - self._last_pos
n = float(np.linalg.norm(dpos))
if n > self.max_ee_step_m and n > 0:
# Clamp the step to the per-frame limit (rate-limit). The clamped
# value is computed either way; raise_on_jump only decides whether
# an over-limit step aborts the loop or is rate-limited + warned.
pos = self._last_pos + dpos * (self.max_ee_step_m / n)
if self.raise_on_jump:
raise ValueError(f"EE jump {n:.3f}m > {self.max_ee_step_m}m")
logger.warning(
"EE jump %.3fm > %.3fm; rate-limited to the per-frame step "
"(likely a transient tracking glitch; if it recurs every frame "
"the commanded target is systematically out of workspace).",
n,
self.max_ee_step_m,
)
raise ValueError(f"EE jump {n:.3f}m > {self.max_ee_step_m}m")
self._last_pos = pos
@@ -284,18 +264,12 @@ class InverseKinematicsEEToJoints(RobotActionProcessorStep):
q_curr: Internal state storing the last joint positions, used as an initial guess for the IK solver.
initial_guess_current_joints: If True, use the robot's current joint state as the IK guess.
If False, use the solution from the previous step.
orientation_weight: Weight for the orientation constraint passed to
``RobotKinematics.inverse_kinematics``. Defaults to ``0.01`` (matching the solver
default, so existing callers are unchanged). Set to ``0.0`` for position-only IK on
under-actuated arms; a small nonzero weight gives soft-orientation IK on the 5-DOF
SO-101, where the wrist tracks orientation only partially (position dominates).
"""
kinematics: RobotKinematics
motor_names: list[str]
q_curr: np.ndarray | None = field(default=None, init=False, repr=False)
initial_guess_current_joints: bool = True
orientation_weight: float = 0.01
def action(self, action: RobotAction) -> RobotAction:
x = action.pop("ee.x")
@@ -334,9 +308,7 @@ class InverseKinematicsEEToJoints(RobotActionProcessorStep):
t_des[:3, 3] = [x, y, z]
# Compute inverse kinematics
q_target = self.kinematics.inverse_kinematics(
self.q_curr, t_des, orientation_weight=self.orientation_weight
)
q_target = self.kinematics.inverse_kinematics(self.q_curr, t_des)
self.q_curr = q_target
# TODO: This is sentitive to order of motor_names = q_target mapping
+11
View File
@@ -43,6 +43,7 @@ from lerobot.processor import (
make_default_processors,
rename_stats,
)
from lerobot.processor.relative_action_processor import RelativeActionsProcessorStep
from lerobot.robots import make_robot_from_config
from lerobot.teleoperators import Teleoperator, make_teleoperator_from_config
from lerobot.utils.feature_utils import combine_feature_dicts, hw_to_dataset_features
@@ -51,6 +52,7 @@ from .configs import BaseStrategyConfig, DAggerStrategyConfig, RolloutConfig
from .inference import (
InferenceEngine,
RTCInferenceConfig,
SyncInferenceConfig,
create_inference_engine,
)
from .robot_wrapper import ThreadSafeRobot
@@ -397,6 +399,15 @@ def build_rollout_context(
},
)
if isinstance(cfg.inference, SyncInferenceConfig) and any(
isinstance(step, RelativeActionsProcessorStep) and step.enabled
for step in getattr(preprocessor, "steps", ())
):
raise NotImplementedError(
"SyncInferenceEngine does not support policies with relative actions for now."
"Use --inference.type=rtc or remove relative action processor steps from the policy pipeline."
)
# --- 7. Inference strategy (needs policy + pre/post + hardware) --
logger.info(
"Creating inference engine (type=%s)...",
+14 -73
View File
@@ -24,21 +24,26 @@ import torch
from lerobot.policies.pretrained import PreTrainedPolicy
from lerobot.policies.utils import make_robot_action, prepare_observation_for_inference
from lerobot.processor import PolicyProcessorPipeline, RelativeActionsProcessorStep
from lerobot.processor import PolicyProcessorPipeline
from .base import InferenceEngine
logger = logging.getLogger(__name__)
# Relative-action support: a predicted chunk of offsets is anchored to the robot
# state at prediction time, but the sync engine reruns the pre/post pipeline every
# tick, so ``RelativeActionsProcessorStep`` would re-anchor cached actions to the
# current (moved) state and drift through the chunk. We pin the anchor per chunk:
# a probe on the policy's public ``predict_action_chunk`` flags the ticks that
# predict a fresh chunk; on the others the engine restores the anchor the relative
# step overwrote. ``select_action`` stays on the hot path, so per-tick side effects
# (e.g. LingBot-VA keyframe feedback) are preserved.
# TODO(Steven): support relative-action policies. The per-tick flow refreshes
# ``RelativeActionsProcessorStep._last_state`` every call, so cached chunk
# actions popped on later ticks get reanchored to the *current* robot state and
# absolute targets drift through the chunk. Relative-action policies are
# rejected at context-build time today; RTC postprocesses the whole chunk and
# is unaffected.
#
# Candidate fix: drive the policy via ``predict_action_chunk`` and serve a
# local FIFO of postprocessed actions. Eliminates drift by construction and
# saves per-tick pre/post work, but bypasses ``select_action`` — needs
# fallbacks for SAC (raises), ACT temporal ensembling (ensembler lives in
# ``select_action``), and Diffusion-family (obs-history queues populated as a
# side effect of ``select_action``).
class SyncInferenceEngine(InferenceEngine):
@@ -68,31 +73,6 @@ class SyncInferenceEngine(InferenceEngine):
self._task = task
self._device = torch.device(device or "cpu")
self._robot_type = robot_type
# Find an enabled RelativeActionsProcessorStep to pin its anchor per chunk
# (see module comment), mirroring the RTC engine.
self._relative_step = next(
(
s
for s in getattr(preprocessor, "steps", ())
if isinstance(s, RelativeActionsProcessorStep) and s.enabled
),
None,
)
# Set by the probe for the current tick / ever, respectively.
self._chunk_predicted = False
self._ever_predicted_chunk = False
self._original_predict_action_chunk = None # set while the probe is installed
if self._relative_step is not None:
# ``action_names`` is optional on the step; fill it lazily from the
# policy/dataset so the relative<->absolute mask is built correctly. This is
# a deliberate engine->step side effect (the step is configured by its consumer).
if self._relative_step.action_names is None:
cfg_names = getattr(policy.config, "action_feature_names", None)
self._relative_step.action_names = list(cfg_names) if cfg_names else list(ordered_action_keys)
self._install_chunk_probe()
logger.info("Relative actions enabled: chunk anchor pinned per predicted chunk")
logger.info(
"SyncInferenceEngine initialized (device=%s, action_keys=%d)",
self._device,
@@ -105,11 +85,6 @@ class SyncInferenceEngine(InferenceEngine):
def stop(self) -> None:
"""No background resources to stop."""
# Undo the probe so the policy object isn't left permanently patched
# (it may outlive this engine or be reused by another).
if self._original_predict_action_chunk is not None:
self._policy.predict_action_chunk = self._original_predict_action_chunk
self._original_predict_action_chunk = None
logger.info("SyncInferenceEngine stopped")
def reset(self) -> None:
@@ -118,27 +93,6 @@ class SyncInferenceEngine(InferenceEngine):
self._policy.reset()
self._preprocessor.reset()
self._postprocessor.reset()
# New episode: the next tick predicts a fresh chunk and re-anchors.
self._chunk_predicted = False
self._ever_predicted_chunk = False
def _install_chunk_probe(self) -> None:
"""Wrap the policy's public ``predict_action_chunk`` so we learn which ticks
predict a fresh chunk (when the anchor must advance) without introspecting any
private action queue. Chunking policies call it from ``select_action``.
Wraps whatever callable is currently bound (e.g. an already-``torch.compile``d
one, since ``build_rollout_context`` compiles before building the engine); undone
in ``stop()``."""
self._original_predict_action_chunk = self._policy.predict_action_chunk
inner = self._original_predict_action_chunk
def probe(*args, **kwargs):
self._chunk_predicted = True
self._ever_predicted_chunk = True
return inner(*args, **kwargs)
self._policy.predict_action_chunk = probe
def get_action(self, obs_frame: dict | None) -> torch.Tensor | None:
"""Run the full inference pipeline on ``obs_frame`` and return an action tensor."""
@@ -153,25 +107,12 @@ class SyncInferenceEngine(InferenceEngine):
if self._device.type == "cuda" and self._policy.config.use_amp
else nullcontext()
)
# Snapshot the chunk anchor before the preprocessor overwrites it with this
# tick's state; restore it below if this tick only served a cached action.
# ``clone`` so the snapshot survives even if the cached tensor is ever mutated
# in place (today it is only rebound, but the copy is cheap for a state vector).
anchor_before = None
if self._relative_step is not None:
cached = self._relative_step.get_cached_state()
anchor_before = cached.clone() if cached is not None else None
self._chunk_predicted = False
with torch.inference_mode(), autocast_ctx:
observation = prepare_observation_for_inference(
observation, self._device, self._task, self._robot_type
)
observation = self._preprocessor(observation)
action = self._policy.select_action(observation)
# Hold the anchor only for a chunking policy serving a cached action this
# tick; policies that never chunk or that recomputed keep refreshing.
if self._relative_step is not None and self._ever_predicted_chunk and not self._chunk_predicted:
self._relative_step.set_cached_state(anchor_before)
action = self._postprocessor(action)
action_tensor = action.squeeze(0).cpu()
+25 -23
View File
@@ -28,12 +28,7 @@ For distributed runs, see ``examples/annotations/run_hf_job.py``.
"""
import logging
from contextlib import suppress
from pathlib import Path
from typing import TYPE_CHECKING
from huggingface_hub import HfApi, snapshot_download
from huggingface_hub.errors import RevisionNotFoundError
from lerobot.annotations.steerable_pipeline.config import AnnotationPipelineConfig
from lerobot.annotations.steerable_pipeline.executor import Executor
@@ -47,12 +42,6 @@ from lerobot.annotations.steerable_pipeline.validator import StagingValidator
from lerobot.annotations.steerable_pipeline.vlm_client import make_vlm_client
from lerobot.annotations.steerable_pipeline.writer import LanguageColumnsWriter
from lerobot.configs import parser
from lerobot.utils.import_utils import _datasets_available, require_package
if TYPE_CHECKING or _datasets_available:
from lerobot.datasets.dataset_metadata import CODEBASE_VERSION
from lerobot.datasets.io_utils import load_info
from lerobot.datasets.utils import create_lerobot_dataset_card
logger = logging.getLogger(__name__)
@@ -61,6 +50,8 @@ def _resolve_root(cfg: AnnotationPipelineConfig) -> Path:
if cfg.root is not None:
return Path(cfg.root)
if cfg.repo_id is not None:
from huggingface_hub import snapshot_download
return Path(snapshot_download(repo_id=cfg.repo_id, repo_type="dataset"))
raise ValueError("Either --root or --repo_id must be provided.")
@@ -134,7 +125,7 @@ def _push_to_hub(root: Path, cfg: AnnotationPipelineConfig) -> None:
Pushes to ``cfg.new_repo_id`` when set, otherwise back to ``cfg.repo_id``.
"""
require_package("datasets", "dataset")
from huggingface_hub import HfApi # noqa: PLC0415
repo_id = cfg.new_repo_id or cfg.repo_id
commit_message = cfg.push_commit_message or "Add steerable annotations (lerobot-annotate)"
@@ -152,26 +143,33 @@ def _push_to_hub(root: Path, cfg: AnnotationPipelineConfig) -> None:
repo_id=repo_id,
repo_type="dataset",
commit_message=commit_message,
# README.md is excluded because when pushing to ``new_repo_id`` the
# source card's links (e.g. the visualize badge) would keep pointing
# at the source dataset; a fresh card is generated below instead.
ignore_patterns=[".annotate_staging/**", "**/.DS_Store", "README.md"],
ignore_patterns=[".annotate_staging/**", "**/.DS_Store"],
)
print(f"[lerobot-annotate] uploaded to https://huggingface.co/datasets/{repo_id}", flush=True)
dataset_info = load_info(root)
card = create_lerobot_dataset_card(dataset_info=dataset_info, license="apache-2.0", repo_id=repo_id)
card.push_to_hub(repo_id=repo_id, repo_type="dataset")
# Tag the upload with the codebase version. ``LeRobotDatasetMetadata``
# resolves the dataset revision via ``get_safe_version`` which scans
# for tags like ``v3.0``; without a tag it raises
# ``RevisionNotFoundError``. Read the version straight from the
# dataset's own ``meta/info.json`` so we tag whatever the writer
# actually wrote (no accidental drift if the codebase floor moves).
version_tag = (
dataset_info.codebase_version if dataset_info.codebase_version.startswith("v") else CODEBASE_VERSION
)
from lerobot.datasets.dataset_metadata import CODEBASE_VERSION # noqa: PLC0415
info_path = root / "meta" / "info.json"
version_tag = CODEBASE_VERSION
if info_path.exists():
try:
from lerobot.utils.io_utils import load_json # noqa: PLC0415
info = load_json(info_path)
ds_version = info.get("codebase_version")
if isinstance(ds_version, str) and ds_version.startswith("v"):
version_tag = ds_version
except Exception as exc: # noqa: BLE001
print(
f"[lerobot-annotate] could not read codebase_version from info.json ({exc}); falling back to {version_tag}",
flush=True,
)
revision = getattr(commit_info, "oid", None)
tag_kwargs = {
"repo_id": repo_id,
@@ -182,6 +180,10 @@ def _push_to_hub(root: Path, cfg: AnnotationPipelineConfig) -> None:
tag_kwargs["revision"] = revision
try:
from contextlib import suppress # noqa: PLC0415
from huggingface_hub.errors import RevisionNotFoundError # noqa: PLC0415
with suppress(RevisionNotFoundError):
api.delete_tag(repo_id, tag=version_tag, repo_type="dataset")
api.create_tag(**tag_kwargs)
+3 -7
View File
@@ -171,9 +171,6 @@ def update_policy(
train_metrics.update_s = time.perf_counter() - start_time
if torch.cuda.is_available():
train_metrics.gpu_mem_gb = torch.cuda.max_memory_allocated() / (1024**3)
# Aggregate the policy's scalar outputs for logging and rank-reduction across the log window.
if output_dict:
train_metrics.update_metrics(output_dict)
return train_metrics, output_dict
@@ -575,7 +572,7 @@ def train(cfg: TrainPipelineConfig, accelerator: "Accelerator | None" = None):
batch = preprocessor(batch)
train_tracker.dataloading_s = time.perf_counter() - start_time
train_tracker, _ = update_policy(
train_tracker, output_dict = update_policy(
train_tracker,
policy,
batch,
@@ -608,10 +605,9 @@ def train(cfg: TrainPipelineConfig, accelerator: "Accelerator | None" = None):
train_tracker.samples_per_s = effective_batch_size / step_time
logging.info(train_tracker)
if wandb_logger:
# Policy sub-losses (latent_loss, action_loss, ...) are aggregated into the
# tracker by update_policy, so to_dict() already carries their windowed,
# rank-reduced averages — no per-step output_dict passthrough needed.
wandb_log_dict = train_tracker.to_dict()
if output_dict:
wandb_log_dict.update(output_dict)
# Log sample weighting statistics if enabled
if sample_weighter is not None:
weighter_stats = sample_weighter.get_stats()
-14
View File
@@ -59,20 +59,6 @@ def get_safe_torch_device(try_device: str, log: bool = False) -> torch.device:
return device
def resolve_safetensors_device(map_location: str | torch.device) -> str:
"""Resolve a device string for a safetensors load, working around a device-mapping quirk.
safetensors' load maps the bare string "cuda" to cuda:0 regardless of the current device
(unlike torch's .to("cuda"), which honors torch.cuda.current_device()). Under multi-GPU
accelerate/FSDP every rank would then load its weights onto GPU 0, OOMing it before sharding.
Resolve "cuda" to the concrete current-device index so each rank loads onto its own GPU.
"""
map_location = str(map_location)
if map_location == "cuda" and torch.cuda.is_available():
return f"cuda:{torch.cuda.current_device()}"
return map_location
def get_safe_dtype(dtype: torch.dtype, device: str | torch.device):
"""
mps is currently not compatible with float64
-19
View File
@@ -104,7 +104,6 @@ class MetricsTracker:
"episodes",
"epochs",
"accelerator",
"_caller_metrics",
]
def __init__(
@@ -130,9 +129,6 @@ class MetricsTracker:
self.episodes = self.samples / self._avg_samples_per_ep
self.epochs = self.samples / self._num_frames
self.accelerator = accelerator
# Meter names the caller registered up front. update_metrics() leaves these untouched, so a
# policy that echoes e.g. "loss" in its output dict can't clobber the aggregated meter.
self._caller_metrics: set[str] = set(self.metrics)
def __getattr__(self, name: str) -> int | dict[str, AverageMeter] | AverageMeter | Any:
if name in self.__dict__:
@@ -160,21 +156,6 @@ class MetricsTracker:
self.episodes = self.samples / self._avg_samples_per_ep
self.epochs = self.samples / self._num_frames
def update_metrics(self, values: dict[str, Any]) -> None:
"""Accumulate a dict of scalar metrics, auto-registering a meter for each new key.
Non-numeric values and bools are ignored.
Caller-registered metrics (those passed to the constructor) are never overridden.
"""
for name, value in values.items():
if isinstance(value, bool) or not isinstance(value, (int, float)):
continue
if name in self._caller_metrics:
continue
if name not in self.metrics:
self.metrics[name] = AverageMeter(name, ":.3f", reduction="mean")
self.metrics[name].update(float(value))
def reduce_across_ranks(self) -> None:
"""
Synchronises the running averages of every metric whose ``reduction`` is not ``"none"``
+3 -3
View File
@@ -85,7 +85,7 @@ def _spy_responder(captured: list[list[dict[str, Any]]], reply: Any):
def test_module1_plan_memory_subtask_smoke(fixture_dataset_root: Path, tmp_path: Path) -> None:
vlm = make_canned_responder(
{
"COMPLETED manipulation events": {
"atomic subtasks": {
"subtasks": [
{"text": "grasp the handle of the sponge", "start": 0.0, "end": 0.4},
{"text": "wipe the counter from left to right", "start": 0.4, "end": 0.8},
@@ -126,7 +126,7 @@ def test_module1_emit_memory_false_skips_memory_keeps_subtasks_and_plan(
leaving subtask + plan generation intact — symmetric to ``emit_plan``."""
vlm = make_canned_responder(
{
"COMPLETED manipulation events": {
"atomic subtasks": {
"subtasks": [
{"text": "grasp the handle of the sponge", "start": 0.0, "end": 0.4},
{"text": "wipe the counter from left to right", "start": 0.4, "end": 0.8},
@@ -318,7 +318,7 @@ def test_module1_attaches_contact_sheets_to_subtask_prompt(
return block.get("text", "")
return ""
subtask_calls = [m for m in captured if "COMPLETED manipulation events" in _prompt_text(m)]
subtask_calls = [m for m in captured if "atomic subtasks" in _prompt_text(m)]
assert len(subtask_calls) == 1, "expected exactly one subtask-prompt VLM call"
content = subtask_calls[0][0]["content"]
video_blocks = [b for b in content if isinstance(b, dict) and b.get("type") == "video"]
-7
View File
@@ -346,10 +346,3 @@ def test_state_not_modified_by_relative_processor(dataset, action_dim):
result_state = result[TransitionKey.OBSERVATION][OBS_STATE]
torch.testing.assert_close(result_state, original_state)
def test_cached_anchor_not_in_config():
"""The cached anchor is ephemeral runtime state and must not leak into the config."""
step = RelativeActionsProcessorStep(enabled=True)
step.set_cached_state(torch.tensor([[1.0, 2.0, 3.0, 4.0]]))
assert set(step.get_config()) == {"enabled", "exclude_joints", "action_names"}
+7 -20
View File
@@ -18,8 +18,6 @@ import json
from types import SimpleNamespace
import pytest
import requests
from huggingface_hub.errors import RevisionNotFoundError
# ``lerobot.scripts.lerobot_annotate`` (and the ``_push_to_hub`` path it
# exercises) imports ``lerobot.datasets``, which only ships under the
@@ -28,13 +26,11 @@ pytest.importorskip("datasets", reason="datasets is required (install lerobot[da
def test_push_to_hub_tags_uploaded_dataset_revision(tmp_path, monkeypatch):
from lerobot.scripts import lerobot_annotate
from lerobot.scripts.lerobot_annotate import _push_to_hub
root = tmp_path / "dataset"
(root / "meta").mkdir(parents=True)
(root / "meta" / "info.json").write_text(
json.dumps({"codebase_version": "v3.0", "fps": 30, "features": {}})
)
(root / "meta" / "info.json").write_text(json.dumps({"codebase_version": "v3.0"}))
calls = {}
@@ -47,6 +43,9 @@ def test_push_to_hub_tags_uploaded_dataset_revision(tmp_path, monkeypatch):
return SimpleNamespace(oid="abc123")
def delete_tag(self, repo_id, **kwargs):
import requests
from huggingface_hub.errors import RevisionNotFoundError
calls["delete_tag"] = {"repo_id": repo_id, **kwargs}
# Simulate the common case: no stale tag to delete.
raise RevisionNotFoundError("no such tag", response=requests.Response())
@@ -54,12 +53,7 @@ def test_push_to_hub_tags_uploaded_dataset_revision(tmp_path, monkeypatch):
def create_tag(self, **kwargs):
calls["create_tag"] = kwargs
monkeypatch.setattr(lerobot_annotate, "HfApi", FakeHfApi)
def fake_card_push(self, **kwargs):
calls["card_push"] = {"content": str(self), **kwargs}
monkeypatch.setattr("huggingface_hub.DatasetCard.push_to_hub", fake_card_push)
monkeypatch.setattr("huggingface_hub.HfApi", FakeHfApi)
cfg = SimpleNamespace(
repo_id="source/dataset",
@@ -68,7 +62,7 @@ def test_push_to_hub_tags_uploaded_dataset_revision(tmp_path, monkeypatch):
push_commit_message=None,
)
lerobot_annotate._push_to_hub(root, cfg)
_push_to_hub(root, cfg)
assert calls["create_repo"] == {
"repo_id": "annotated/dataset",
@@ -77,13 +71,6 @@ def test_push_to_hub_tags_uploaded_dataset_revision(tmp_path, monkeypatch):
"exist_ok": True,
}
assert calls["upload_folder"]["repo_id"] == "annotated/dataset"
# The source README must not be copied over: its links (e.g. the
# visualize badge) point at the source dataset. A card regenerated for
# the target repo is pushed instead.
assert "README.md" in calls["upload_folder"]["ignore_patterns"]
assert calls["card_push"]["repo_id"] == "annotated/dataset"
assert "visualize_dataset?path=annotated/dataset" in calls["card_push"]["content"]
assert "source/dataset" not in calls["card_push"]["content"]
# A stale tag (e.g. from a previous annotation run) is deleted first so
# the new tag always points at the upload we just made.
assert calls["delete_tag"] == {
-222
View File
@@ -348,225 +348,3 @@ def test_rollout_context_fields():
field_names = {f.name for f in dataclasses.fields(RolloutContext)}
assert field_names == {"runtime", "hardware", "policy", "processors", "data"}
# ---------------------------------------------------------------------------
# Sync engine: relative-action anchoring (drift-free chunk execution)
# ---------------------------------------------------------------------------
_REL_ACTION_NAMES = ["j0.pos", "j1.pos", "j2.pos", "gripper.pos"]
_REL_ACTION_DIM = len(_REL_ACTION_NAMES)
def _relative_pre_post(exclude_joints=None):
"""Pre/post processors wrapping the real relative (caches anchor) and absolute
(relative + cached state) steps, mirroring what the sync engine feeds them."""
from lerobot.processor import (
AbsoluteActionsProcessorStep,
RelativeActionsProcessorStep,
TransitionKey,
create_transition,
)
from lerobot.utils.constants import OBS_STATE
relative_step = RelativeActionsProcessorStep(
enabled=True, exclude_joints=exclude_joints or [], action_names=list(_REL_ACTION_NAMES)
)
absolute_step = AbsoluteActionsProcessorStep(enabled=True, relative_step=relative_step)
class _Pre:
steps = [relative_step]
def __call__(self, observation):
# Run the relative step so it caches the anchor, then pass the batch through.
transition = create_transition(observation={OBS_STATE: observation[OBS_STATE]})
relative_step(transition)
return observation
def reset(self):
pass
class _Post:
def __call__(self, action):
transition = create_transition(action=action)
return absolute_step(transition)[TransitionKey.ACTION]
def reset(self):
pass
return _Pre(), _Post(), relative_step
def _fake_relative_policy(chunk_rel, n_action_steps, chunking=True):
"""Fake relative-action policy for the sync engine.
``chunking=True`` buffers a chunk and serves it one action per tick, calling the
public ``predict_action_chunk`` only on refill (pi0/fastwam/lingbot). ``False``
returns an action directly and never calls it. The engine's anchor probe keys off
that public call, so the fake routes through it rather than any private queue.
"""
from collections import deque
policy = MagicMock()
policy.config.use_amp = False
policy.config.action_feature_names = list(_REL_ACTION_NAMES)
state = {"predict_calls": 0}
queue = deque(maxlen=n_action_steps)
def predict_action_chunk(_batch=None, **_kwargs):
state["predict_calls"] += 1
return chunk_rel.unsqueeze(0) # [B=1, n, dim]
def select_action(_observation):
if not chunking:
return chunk_rel[0].unsqueeze(0)
if len(queue) == 0:
actions = policy.predict_action_chunk(_observation)
queue.extend(actions.transpose(0, 1)) # [n, 1, dim]
return queue.popleft()
policy.predict_action_chunk.side_effect = predict_action_chunk
policy.select_action.side_effect = select_action
policy.reset.side_effect = queue.clear
policy._predict_state = state
return policy
def _build_sync_engine(policy, pre, post):
from lerobot.rollout import SyncInferenceEngine
return SyncInferenceEngine(
policy=policy,
preprocessor=pre,
postprocessor=post,
dataset_features={"action": {"names": list(_REL_ACTION_NAMES)}},
ordered_action_keys=list(_REL_ACTION_NAMES),
task="test",
device="cpu",
robot_type="mock",
)
def _obs_frame(state_values):
import numpy as np
return {"observation.state": np.asarray(state_values, dtype=np.float32)}
def test_sync_relative_holds_anchor_across_chunk():
"""Every action popped within a chunk must anchor to the tick-0 state (no drift)."""
n = 4
# A distinct relative offset per chunk step so a wrong anchor would be visible.
chunk_rel = torch.stack([torch.full((_REL_ACTION_DIM,), 0.1 * (i + 1)) for i in range(n)])
pre, post, relative_step = _relative_pre_post()
policy = _fake_relative_policy(chunk_rel, n_action_steps=n)
engine = _build_sync_engine(policy, pre, post)
assert engine._relative_step is relative_step # introspection wired the step
s0 = [1.0, 2.0, 3.0, 4.0]
outputs = []
for tick in range(n):
# Feed a *different* state each tick; a drifting anchor would use it.
state = [v + tick for v in s0]
outputs.append(engine.get_action(_obs_frame(state)))
# Exactly one chunk was predicted across the n ticks.
assert policy._predict_state["predict_calls"] == 1
for tick in range(n):
expected = torch.tensor(s0) + chunk_rel[tick]
torch.testing.assert_close(outputs[tick], expected)
# Next tick empties the queue -> fresh chunk -> anchor advances to the new state.
s_next = [10.0, 20.0, 30.0, 40.0]
out = engine.get_action(_obs_frame(s_next))
assert policy._predict_state["predict_calls"] == 2
torch.testing.assert_close(out, torch.tensor(s_next) + chunk_rel[0])
# The anchor now reflects the fresh-chunk state, not the held one.
torch.testing.assert_close(relative_step.get_cached_state(), torch.tensor([s_next]))
def test_sync_relative_reset_reanchors_new_episode():
"""After ``reset()`` the first tick of the next episode anchors to the new state."""
n = 3
chunk_rel = torch.stack([torch.full((_REL_ACTION_DIM,), 0.2) for _ in range(n)])
pre, post, relative_step = _relative_pre_post()
policy = _fake_relative_policy(chunk_rel, n_action_steps=n)
engine = _build_sync_engine(policy, pre, post)
# Episode 1: one tick anchors to s0 and leaves cached actions in the queue.
engine.get_action(_obs_frame([1.0, 1.0, 1.0, 1.0]))
assert policy._predict_state["predict_calls"] == 1
engine.reset() # clears the queue and the per-episode chunk flags
# Episode 2: a fresh state must produce a fresh chunk anchored to that state,
# not carry over the previous episode's anchor.
s_new = [7.0, 8.0, 9.0, 10.0]
out = engine.get_action(_obs_frame(s_new))
assert policy._predict_state["predict_calls"] == 2
torch.testing.assert_close(out, torch.tensor(s_new) + chunk_rel[0])
torch.testing.assert_close(relative_step.get_cached_state(), torch.tensor([s_new]))
def test_sync_relative_non_chunking_policy_refreshes_every_tick():
"""A policy that never calls ``predict_action_chunk`` must not freeze the anchor."""
n = 3
chunk_rel = torch.stack([torch.full((_REL_ACTION_DIM,), 0.5) for _ in range(n)])
pre, post, _ = _relative_pre_post()
policy = _fake_relative_policy(chunk_rel, n_action_steps=n, chunking=False)
engine = _build_sync_engine(policy, pre, post)
s0 = [1.0, 1.0, 1.0, 1.0]
for tick in range(3):
state = [v + tick for v in s0]
out = engine.get_action(_obs_frame(state))
# Anchor must track the current state every tick (no chunk => no hold).
torch.testing.assert_close(out, torch.tensor(state) + chunk_rel[0])
assert policy._predict_state["predict_calls"] == 0
def test_sync_engine_no_relative_step_is_none():
"""Without an enabled relative step, the engine takes the plain select_action path."""
policy = MagicMock()
policy.config.use_amp = False
engine = _build_sync_engine(policy, MagicMock(steps=[]), MagicMock())
assert engine._relative_step is None
def test_sync_relative_exclude_joints_stay_absolute():
"""With ``exclude_joints``, excluded dims pass through absolute while the relative
dims still hold the tick-0 anchor across the chunk."""
n = 4
# Distinct offset per step *and* per dim so a wrong anchor or a wrong mask shows up.
chunk_rel = torch.stack([torch.full((_REL_ACTION_DIM,), 0.1 * (i + 1)) for i in range(n)])
pre, post, relative_step = _relative_pre_post(exclude_joints=["gripper"])
policy = _fake_relative_policy(chunk_rel, n_action_steps=n)
engine = _build_sync_engine(policy, pre, post)
# gripper (last dim) is kept absolute; j0..j2 are relative.
mask = torch.tensor([1.0, 1.0, 1.0, 0.0])
s0 = [1.0, 2.0, 3.0, 4.0]
outputs = []
for tick in range(n):
state = [v + tick for v in s0] # moving state; a drifting anchor would use it
outputs.append(engine.get_action(_obs_frame(state)))
assert policy._predict_state["predict_calls"] == 1 # one chunk held across n ticks
for tick in range(n):
# relative dims: anchor held at s0; excluded gripper dim: raw predicted value.
expected = chunk_rel[tick] + torch.tensor(s0) * mask
torch.testing.assert_close(outputs[tick], expected)
def test_sync_relative_stop_restores_policy_method():
"""``stop()`` un-patches the probe so the policy object isn't permanently modified."""
n = 3
chunk_rel = torch.stack([torch.full((_REL_ACTION_DIM,), 0.2) for _ in range(n)])
pre, post, _ = _relative_pre_post()
policy = _fake_relative_policy(chunk_rel, n_action_steps=n)
original = policy.predict_action_chunk
engine = _build_sync_engine(policy, pre, post)
assert policy.predict_action_chunk is not original # probe installed
engine.stop()
assert policy.predict_action_chunk is original # restored
-34
View File
@@ -233,37 +233,3 @@ def test_metrics_tracker_reduce_across_ranks_invokes_reduce():
# accumulate against the cluster view rather than the stale per-rank sum.
meter = tracker.update_s
assert meter.sum / meter.count == pytest.approx(meter.avg)
def test_metrics_tracker_update_metrics_registers_and_averages():
tracker = MetricsTracker(batch_size=32, num_frames=1000, num_episodes=50, metrics={})
tracker.update_metrics({"latent_loss": 0.2, "action_loss": 0.4})
tracker.update_metrics({"latent_loss": 0.4, "action_loss": 0.6})
# New keys are auto-registered as mean-reduced meters and averaged over the window.
assert tracker.metrics["latent_loss"].reduction == "mean"
assert tracker.metrics["latent_loss"].avg == pytest.approx(0.3)
assert tracker.metrics["action_loss"].avg == pytest.approx(0.5)
assert tracker.to_dict()["latent_loss"] == pytest.approx(0.3)
def test_metrics_tracker_update_metrics_skips_non_numeric():
tracker = MetricsTracker(batch_size=32, num_frames=1000, num_episodes=50, metrics={})
tracker.update_metrics({"loss": 0.5, "head_mode": "sparse", "enabled": True})
# strings and bools ignored
assert "loss" in tracker.metrics
assert "head_mode" not in tracker.metrics
assert "enabled" not in tracker.metrics
def test_metrics_tracker_update_metrics_does_not_override_caller_meter():
# A policy that echoes "loss" in its output dict must not overwrite the caller-owned,
# already-aggregated loss meter.
metrics = {"loss": AverageMeter("loss", ":.3f", reduction="mean")}
tracker = MetricsTracker(batch_size=32, num_frames=1000, num_episodes=50, metrics=metrics)
tracker.loss = 1.0 # caller-set optimized loss
tracker.update_metrics({"loss": 99.0, "latent_loss": 0.2})
assert tracker.metrics["loss"].avg == pytest.approx(1.0) # snapshot ignored
assert tracker.metrics["latent_loss"].avg == pytest.approx(0.2)
Generated
+8 -8
View File
@@ -1,5 +1,5 @@
version = 1
revision = 3
revision = 2
requires-python = ">=3.12"
resolution-markers = [
"(python_full_version >= '3.15' and platform_machine == 'AMD64' and sys_platform == 'linux') or (python_full_version >= '3.15' and platform_machine == 'x86_64' and sys_platform == 'linux')",
@@ -2127,16 +2127,16 @@ wheels = [
[[package]]
name = "hydra-core"
version = "1.3.4"
version = "1.3.3"
source = { registry = "https://pypi.org/simple" }
dependencies = [
{ name = "antlr4-python3-runtime", marker = "sys_platform == 'linux'" },
{ name = "omegaconf", marker = "sys_platform == 'linux'" },
{ name = "packaging", marker = "sys_platform == 'linux'" },
]
sdist = { url = "https://files.pythonhosted.org/packages/10/dd/220f0e91743136725352497e98540772a01fc7c3ab96ff16c3c74424e984/hydra_core-1.3.4.tar.gz", hash = "sha256:ad0f7b05a0242255a8984d5a4ed2f6847f7b783ed727368a2c0155ec52d6c34c", size = 3263348, upload-time = "2026-07-04T16:25:38.891Z" }
sdist = { url = "https://files.pythonhosted.org/packages/0d/0b/7c0d941311aadc6479ec01767edba9c8a07db1452685de3567ed3058d0c9/hydra_core-1.3.3.tar.gz", hash = "sha256:b7477ee21f08b62f71bf0126d44695c048dc7e9c0cc79e2d593b707cb1e44048", size = 3262532, upload-time = "2026-06-11T05:54:26.835Z" }
wheels = [
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