Commit Graph

58 Commits

Author SHA1 Message Date
Pepijn 894fc6bfb5 refactor(streaming): rebuild StreamingLeRobotDataset on native datasets primitives
The custom episode pool becomes a pure `datasets` pipeline:

  split_dataset_by_node -> batch(by_column="episode_index")
    -> shuffle(buffer=episode_pool_size)            # episode pool
    -> map(explode + exact delta windows)           # episode -> frames
    -> shuffle(buffer=frame_shuffle_buffer_size)    # frame interleave

and the torch IterableDataset wrapper keeps only per-sample video decode
(decode-on-exit), image transforms, task lookup, and decode/fetch timing.

Replaced by native machinery and deleted: the pooled-episode admission
loop, the refcounted video prefetcher, manual worker shard striding plus
the worker-split suppression patch, the per-(epoch, rank) shard-order
permutation, the per-consumer SplitMix64 RNG, and fast-forward resume.
DataLoader workers are split by `datasets` itself; .shuffle() permutes
shard order per epoch natively; resume delegates to the native
state_dict/load_state_dict (exact with num_workers=0; with workers use
torchdata's StatefulDataLoader, which checkpoints per-worker state
through the same protocol). An in-flight epoch counter ensures a
mid-iteration state_dict records the epoch the stream position belongs
to. Buffer contents are skipped on resume (documented datasets
behavior): never repeats data, drops at most ~pool + frame-buffer frames.

Randomness is unchanged: a batch still mixes up to episode_pool_size
episodes; delta windows are still exact in-episode slices with correct
boundary padding (value-verified against the map-style dataset). The
known trade accepted with this rewrite: no video prefetch-on-admit, so
remote decode pays per-frame range reads at yield time - use a colocated
bucket (data_files_root) at large scale.

The delta-consistency tests gained a scalar-comparison branch: they
silently skipped python-scalar keys before (stale `check` variable),
exposed by the new pipeline's key ordering.

Requires datasets with #8259 (pinned to the merge commit on this
branch). Example updated to per-rank native resume via torchdata's
StatefulDataLoader when available.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-11 21:03:09 +02:00
Pepijn 4e056081cb feat(streaming): seeded shard-order permutation per (seed, epoch, rank)
Shards were assigned to consumers in file-index order, so a sub-epoch
run over a corpus consolidated source-by-source trains on whatever the
first N% of files contains and drifts curriculum-style as sources change
under it. Permute the rank's shard list with a seeded RNG before worker
striding: a 30%-of-epoch run now sees a uniform 30% sample of files.

The permutation is seeded by (seed, epoch, rank) only - every DataLoader
worker of a rank must derive the identical list, since workers stride it
and disagreement would create overlapping shard assignments. It re-draws
each epoch, is the identity when shuffle=False, and stays deterministic
for fast-forward resume.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-11 17:08:26 +02:00
Pepijn a164bb97bd feat(streaming): native datasets-5 episode batching and worker-split suppression
Allow datasets 5.x (pin >=4.7,<6; lockfile moves to 5.0.0) and use its
Arrow-native batch(by_column="episode_index") (huggingface/datasets#8194
sibling, #8172) for episode admission when available - one Arrow
accumulation per episode instead of one Python dict per row - with the
existing row loop as the 4.x fallback. A parity test asserts both paths
group identically.

Also fixes a latent worker bug this surfaced: `datasets` detects torch
DataLoader workers and re-splits its shards internally (_iter_pytorch),
on top of our explicit per-worker shard assignment. That second split
silently drops data whenever a per-worker stream has fewer internal
shards than there are workers (masked so far by single-file test
fixtures), and on datasets 5.0 it crashes by_column batching outright.
The worker context is now hidden from `datasets` while draining streams
we already partitioned (process-local patch, restored on exit).

The multi-shard shuffle buffer (huggingface/datasets#8194) is
intentionally NOT used: frame-level shuffling upstream of episode
grouping would fragment episodes and break delta windows. Its threaded
multi-source prefetch idea remains a follow-up for episode admission if
fetch timings warrant it.

Verified on both datasets 4.8.5 (fallback) and 5.0.0 (native): 27/27
streaming tests each; full datasets suite 469 passed under 5.0.0.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-11 16:10:53 +02:00
Pepijn a7b7f4964e fix(streaming): worker-exact resume arithmetic and multi-worker resume test
The fast-forward skip assumed every DataLoader worker delivers batches;
workers that own no shards yield nothing and are stopped, so the batch
round-robin runs over min(num_workers, num_shards) active workers. Use
that effective count (shard-less workers skip nothing). Adds a resume
test under num_workers=2 asserting exact continuation.

Note: the test fixtures write a single parquet file regardless of
data_files_size_in_mb, so worker-splitting tests exercise the degenerate
single-shard layout; multi-shard behavior is covered by the rank-level
split_dataset_by_node tests.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-11 15:11:00 +02:00
Pepijn 1050c2fb6c feat(streaming): episode-pool iteration with decode-on-exit, video prefetch, and exact resume
Replace the shard/Backtrackable/decoded-shuffle-buffer internals with an
episode pool: each (rank x worker) consumer keeps episode_pool_size whole
episodes' tabular rows in RAM and emits uniformly random frames across
them. delta_timestamps windows become exact in-RAM slices with correct
boundary padding (the Backtrackable machinery and its lookback/lookahead
ceilings are gone), and video is decoded only when a sample is emitted,
so pool memory stays tabular-sized instead of buffer_size decoded
samples.

- Prefetch-on-admit: when streaming from a remote source, each pooled
  episode's video files download to a local cache in the background
  (refcounted, since v3 packs several episodes per file; deleted on
  eviction), so decode-on-exit reads local bytes instead of paying
  network seek latency.
- Per-consumer RNG derived from (seed, epoch, rank, worker): consumers
  decorrelated, runs reproducible, epochs reshuffle automatically.
- Deterministic fast-forward resume: load_state_dict takes the trainer's
  {batches_consumed, batch_size}; each worker re-derives its own skip
  from the DataLoader's round-robin batch assignment and replays
  tabular-only (no decode). Exact within an epoch, works with
  num_workers > 0, and the same state file serves every rank. Replaces
  the per-shard HF state_dict approach, which lived in worker processes
  and could not be captured from the trainer.
- Shard-cap default removed (max_num_shards=None uses every parquet
  shard); runtime warnings for non-divisible world sizes (datasets
  degrades to read-everything splitting) and workers left without
  shards.
- episode_pool_size replaces buffer_size (deprecated, ignored with a
  warning); decoder cache sized to the pool working set, capped at 128.

Legacy order-replication tests asserted the old buffer algorithm
step-by-step and are rewritten as behavior contracts (exactly-once
coverage, per-seed determinism, epoch reshuffle). Value-level parity
tests against the map-style dataset pass unchanged.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-11 15:02:15 +02:00
Pepijn ce326207e6 Merge remote-tracking branch 'origin/main' into feat/streaming-hf-native 2026-06-11 12:19:32 +02:00
Pepijn 41166b39fb fix(train): synchronize EpisodeAwareSampler shuffling across ranks and gate dataset download per node (#3768)
* fix(datasets): expose a generator on EpisodeAwareSampler for distributed shuffle sync

In distributed training, accelerate can only synchronize the shuffle
permutation across ranks when the sampler exposes a generator attribute.
EpisodeAwareSampler shuffled via the global torch RNG, so disjoint batch
shards relied on every rank's global CPU RNG staying in lockstep forever;
any rank-asymmetric RNG consumption (e.g. eval rollouts on the main
process only) silently desynced the permutations and ranks trained on
overlapping/missing samples.

* fix(train): seed sampler generator and gate dataset download per node

- Pass a generator seeded with cfg.seed to EpisodeAwareSampler so
  accelerator.prepare registers it as the synchronized RNG and the
  shuffle order is reproducible.
- Gate the initial make_dataset call on is_local_main_process instead of
  is_main_process: the global main process only exists on node 0, so on
  every other node all local ranks were downloading the dataset and
  building the Arrow cache concurrently.
2026-06-11 11:07:42 +02:00
Pepijn 68fa5d80b0 feat(streaming): multinode example, dataloading benchmark, distributed smoke test
- examples/scaling/train_streaming_multinode.py: Accelerate-based distributed/
  resumable streaming training (no DistributedSampler; rank/world_size auto-resolved),
  checkpoints the dataset stream state, and supports a --dummy pure-dataloading path
  with throughput logging. SLURM launcher in slurm/train_streaming_robocasa.sh.
- benchmarks/streaming/benchmark_streaming.py: dummy-consumer dataloading benchmark
  (single / sarm frame modes) emitting frames/s/node, p50/p95/p99 sample latency,
  first-batch latency, and VideoDecoderCache reuse stats as JSON + CSV. SLURM launcher
  + README documenting the source/node/mode matrix and manual bucket prewarming.
- VideoDecoderCache: add hit/miss/eviction counters and a stats() method so the
  benchmark can surface decoder thrash (no new cache, no eviction-policy change).
- tests/datasets/test_streaming_distributed.py: accelerate-launch smoke test asserting
  per-rank disjointness; skips (does not false-pass) when <2 processes spawn.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-09 13:48:23 +02:00
Pepijn d1fc8e298c feat(streaming): distributed + resumable HF-native StreamingLeRobotDataset
Add the large-scale streaming pieces that were missing from the frame-streaming
internals, keeping the existing Backtrackable + output-reservoir frame-shuffle:

- split_dataset_by_node(rank, world_size) before the per-shard loop so each rank
  streams a disjoint set of shards (fixes duplicate data across GPUs). rank and
  world_size auto-resolve from Accelerate state / RANK,WORLD_SIZE env / (0, 1).
- get_worker_info() shard splitting so DataLoader workers within a rank don't
  yield duplicate frames.
- Dynamic Backtrackable window (dynamic_bounds=True) sized to the requested
  delta_timestamps, removing the fixed 100-frame ceiling so long horizons (e.g. a
  SARM window ~160 frames) reach real frames instead of silently padding. Fix the
  peek_back off-by-one: history = lookback + 1.
- video_decoder_cache_size knob; default (active_shards + 1) x num_cameras so the
  live decoder working set does not thrash the VideoDecoderCache LRU.
- state_dict()/load_state_dict() for resume (per-shard HF stream state + exhausted
  set + RNG). Reservoir is re-warmed, so resumption is not bit-exact (documented).
- factory.py wires buffer_size from a new DatasetConfig.streaming_buffer_size field
  instead of repurposing max_num_shards as the worker count.

Tests: tests/datasets/test_streaming_native.py covers distributed disjointness,
worker de-duplication, the SARM-length window, resume, schema parity vs map-style,
local video path resolution, and shuffle decorrelation. 21 passed (13 existing + 8).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-09 13:37:30 +02:00
Roham Z. Nobari dfdc48a7f1 fix(datasets): bound VideoDecoderCache to prevent OOM on large datasets (#3614)
VideoDecoderCache used an unbounded dict keyed on absolute path, with no
eviction in the standard LeRobotDataset path. With shuffled iteration over
datasets that have many distinct mp4 files, every DataLoader worker
accumulated one cached (VideoDecoder, fsspec file handle) pair per distinct
path it had ever touched. Per-entry cost is ~3-5 MB of host RAM plus one
open FD; at ~8 k entries this is roughly 30 GB per worker.

This was hit in the wild during a SmolVLA training run on a 4,195-episode
SO-101 dataset (8,390 mp4s, two cameras per episode). dmesg showed
anon-rss climbing to 34.9 GB on a single pt_data_worker before the OOM
killer fired ~30 min into training; with --num_workers=8 the per-worker
peak halved to 17.9 GB, which is the expected inverse-scaling signature
when the leak is per-decode and the workload is split across workers. The
working workaround on the affected platform was --dataset.video_backend=pyav,
because the pyav path opens/closes per call and never touches this cache.

Switch the backing store to an OrderedDict and evict LRU entries when the
cap is reached, closing the evicted file handle inside the lock so we do
not leak FDs either. Default cap is DEFAULT_DECODER_CACHE_SIZE = 100,
overridable via LEROBOT_VIDEO_DECODER_CACHE_SIZE or by passing max_size=
to the constructor; max_size=None restores the legacy unbounded behaviour
for callers that need it.

Validation on the original failing workload (decode_video_frames_torchcodec
called over real mp4s from the affected SO-101 dataset):

  unbounded:    300 files  ->  +1087 MB host RSS,  cache=300, still climbing
  cap=50:       500 files  ->   +266 MB host RSS,  cache=50,  stable
  cap=50:      2000 calls  ->   +312 MB host RSS,  cache=50,  stable
  cap=100:     1000 calls  ->   +470 MB host RSS,  cache=100, stable

Three independent seeded runs at cap=50 agreed to within 1% (263 / 266 /
265 MB delta), and the 2000-call multi-pass run shows RSS plateaus after
the cap is reached instead of drifting.

Tests in tests/datasets/test_video_decoder_cache.py cover:
default-is-bounded, size cap, LRU ordering, FD close on eviction, FD close
on clear(), cache-hit invariance, max_size=None fallback, and env-var
override. No regressions in test_video_encoding.py, test_streaming.py, or
test_dataset_reader.py (73 prior tests still pass alongside the 8 new ones).
2026-05-19 16:54:25 +02:00
四七 6a8878a639 fix(datasets): normalize shape=(1,) numeric values before HF encoding (#3344)
* fix(datasets): normalize shape=(1,) numeric values before save

* test(datasets): cover shape=(1,) int/bool and finalize

Co-authored-by: Copilot <copilot@github.com>
2026-05-19 16:53:19 +02:00
Caroline Pascal d38eb89f71 feat(video re-encoding): Adding utility and dataset edition tool for video re-encoding (#3611)
* feat(utility): adding video re-encode utility

* feat(edit): adding a new lerobot-edit-dataset tool to re-encode all the videos of a dataset

* chore(format): formatting code

* chore(review): fix Claude reviews

* test(reencode dataset): adding missing test for reencode dataset
2026-05-19 14:46:14 +02:00
Pepijn 7ab4936b1b Add extensive language support (#3467)
* Add extensive language support

* Address review: split persistent/event schemas, drop event timestamps

- recipe.py: derive _VALID_ROLES/_VALID_STREAMS from MessageRole/MessageStream Literals
- dataset_metadata.py: keep CODEBASE_VERSION at v3.0
- language.py: remove RESERVED_STYLES; split arrow/feature schemas into
  persistent (with timestamp) and event (without timestamp); add docstrings
- language_render.py: events use frame-row timestamp implicitly; no
  per-event timestamp filtering or sorting
- converters.py: drop unused subtask_key passthrough
- add docstrings to new public APIs (recipe, render_messages_processor, collate)
- update tests for split schemas; revert uv.lock

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* Add docstrings to all new helpers; revert uv.lock

Covers private helpers in recipe.py, language.py, language_render.py,
and render_messages_processor.py. Also reverts uv.lock to main (it was
re-generated by `uv run` during local checks).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(language): add motion (persistent) and trace (event-only) styles

Promote the previously-reserved motion/trace styles to first-class core
styles. motion routes to language_persistent (it tracks robot state over
time); trace routes to language_events (single-moment annotations).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(language): per-camera tagging on view-dependent styles

Adds a nullable `camera` field to the language row struct (both persistent
and event variants) so view-dependent styles like `vqa` can carry which
`observation.images.*` view they were grounded against. Without this,
multi-camera datasets ended up with multiple `(vqa, role)` rows at the
same timestamp that the resolver could not disambiguate.

- `language.py`: add `camera` to PERSISTENT_ROW_FIELDS / EVENT_ROW_FIELDS,
  to both Arrow struct types and the HF datasets feature mappings;
  introduce VIEW_DEPENDENT_STYLES = {vqa, motion, trace} plus
  `is_view_dependent_style` and `validate_camera_field` helpers (camera
  required iff style is view-dependent).
- `language_render.py`: thread an optional `camera=` kwarg through every
  resolver (`active_at`, `emitted_at`, `nth_prev`, `nth_next`) and through
  `_matching_rows` / `_select_*`, so recipes can disambiguate per-camera
  VQA with `emitted_at(t, style=vqa, role=assistant, camera=...)`.
  Without a `camera` filter, multi-row matches keep raising the existing
  ambiguity error — which is the desired behaviour on multi-camera data.
- `recipes/pi05_hirobot.yaml`: replace the single `ask_vqa` branch with
  `ask_vqa_top` and `ask_vqa_wrist` per-camera sub-recipes (each carrying
  the matching image block), keeping the original 0.20 budget and
  documenting the customization point for datasets with different cameras.
- Tests: schema test asserts the new field order; new tests cover
  `is_view_dependent_style`, `validate_camera_field` (both required and
  forbidden directions), per-camera `emitted_at` filtering, and the
  ambiguity error when two cameras emit `(vqa, assistant)` at the same
  timestamp without a `camera=` filter. RenderMessagesStep + dataset
  passthrough fixtures updated to include the new field.
- `docs/source/language_and_recipes.mdx`: document the `camera` field,
  the per-camera resolver pattern, and the canonical recipe convention.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(language): drop motion from VIEW_DEPENDENT_STYLES

Motion primitives are described in robot-frame (joint / Cartesian) terms,
not pixel space, so they are camera-agnostic. Only `vqa` (event) and
`trace` (event, pixel-trajectory) are view-dependent.

The `camera` field stays on PERSISTENT_ROW_FIELDS for schema symmetry —
the validator, resolver, and HF feature mapping behave identically across
the two columns regardless of which styles populate `camera` today —
but persistent rows now always have `camera=None` in practice.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(language): task_aug style + automatic ${task} rephrasing rotation

Adds task-prompt diversity (Xiao 2022 / CAST) without touching
``meta/tasks.parquet`` or forcing recipes to opt in. The plan reserved
``task_aug`` as a future style; this lands it now.

- ``language.py``: add ``task_aug`` to ``CORE_STYLES`` and
  ``PERSISTENT_STYLES``. ``column_for_style("task_aug")`` returns
  ``language_persistent`` so PR 2 writers route it correctly.

- ``language_render.py``: ``_resolve_task`` now consults the persistent
  slice for rows of ``style="task_aug", role="user"``. When any exist
  it picks one deterministically by ``sample_idx`` (blake2b-keyed, not
  Python's randomized hash) so an epoch sees every rephrasing of every
  episode while the same sample still resolves identically across
  reruns. Falls back to the canonical ``meta/tasks.parquet`` task when
  no rephrasings are present, so existing datasets and unannotated runs
  keep their behaviour. Explicit ``task=`` overrides still win.

- Tests: rephrasing coverage across samples, determinism on repeat
  ``sample_idx``, fallback when persistent has no ``task_aug`` rows,
  and explicit override priority.

Recipes get this for free: any ``${task}`` placeholder rotates through
the available rephrasings. Recipes that want the literal canonical task
can override the binding.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(language): tool catalog in meta/info.json + LeRobotDatasetMetadata.tools

Stores OpenAI-style function schemas at ``meta/info.json["tools"]`` so
datasets can declare which tools are available (today: just ``say``;
tomorrow: per-dataset extensions). The ``DEFAULT_TOOLS`` constant
fills in for unannotated datasets so chat-template consumers don't
have to special-case anything.

Three pieces:

- ``language.py``: ``SAY_TOOL_SCHEMA`` and ``DEFAULT_TOOLS``
  constants. Single source of truth — PR 2's writer and PR 3's
  runtime tool registry will both import from here instead of
  duplicating the dict.
- ``dataset_metadata.py``: ``LeRobotDatasetMetadata.tools`` property
  reads ``info.json["tools"]`` and falls back to ``DEFAULT_TOOLS``.
  Returns deep-copied dicts so callers can mutate the result safely.
- ``docs/source/tools.mdx``: spec page covering the catalog, per-row
  invocations, and the three-step "how to add a new tool" workflow
  (declare schema, implement, register). Linked from the docs
  toctree under the Datasets section.

This lays the groundwork for PR 2's pipeline writing the catalog out
during annotation, and PR 3's ``src/lerobot/tools/`` package shipping
runnable implementations (one file per tool — first up:
``say.py`` wrapping Kyutai's pocket-tts).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* Apply ruff and prettier formatting after merge

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* refactor(language): unify resolver dispatch and prune redundant test scaffolding

* Drop the unused `events` kwarg from `active_at`/`nth_prev`/`nth_next`;
  only `emitted_at` actually consults events. The dispatcher in
  `_resolve_spec` now passes events conditionally.
* Replace the dual `_persistent_sort_key`/`_event_sort_key` pair with a
  single `_row_sort_key` and drop the `sort_key` parameter from
  `_select_one`. Event rows lack `timestamp` (it is implicit in the
  frame) and now default to `0.0` for sort purposes — the
  `(style, role)` tiebreaker is unchanged.
* Inline `_select_latest` into `active_at` (its only caller).
* Collapse `emitted_at`'s dual-branch into one `_select_one` call.
* Tighten `_validate_persistent_resolver` to a single
  `column_for_style(style) != LANGUAGE_PERSISTENT` check.
* Parameterize `test_per_camera_blend_renders_both_views` over the two
  cameras and factor the sub-recipe builder into `_vqa_subrecipe` so
  the test no longer hand-rolls two near-identical recipe blocks.

Net -98 LOC; behavior, public resolver names, and test expectations
unchanged.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(language): always raise on ambiguous resolver matches

`_select_one` previously skipped its ambiguity check whenever any of
`role`/`tool_name`/`camera` was set, on the assumption that the caller
had already pinned down a unique row. That left a real ambiguity hole
for VQA: with two cameras emitting `(vqa, assistant)` at the same
frame, `emitted_at(..., role="assistant")` silently picked the first
sorted row instead of telling the recipe to add `camera=...`. The
existing `test_emitted_at_raises_on_ambiguous_per_camera_vqa` test
already encoded the desired behavior.

Tighten the check: any time `len(rows) > 1` we now raise with the
selectors echoed back, so users see exactly which fields they passed
and that more is needed to disambiguate.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* chore: fix CI — collapse short ValueError to one line, refresh uv.lock

* `ruff format` on CI (newer version) wants the short `camera=None`
  ValueError on a single line.
* `uv.lock` was stale relative to `pyproject.toml`'s `datasets>=4.7.0`
  pin (and picked up upstream `s390x` marker fixes for cuda packages).
  CI runs `uv sync --locked` which rejected the divergence.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(language): keep base install green — drop processor re-export, gate dataset-extra tests

`lerobot.processor` re-exported `RenderMessagesStep` at the package
level, so importing anything from `lerobot.processor` pulled in
`lerobot.datasets.language` → `lerobot.datasets/__init__.py` →
`require_package("datasets")`, which fails in the Tier 1 base install
that intentionally omits the `[dataset]` extra. The chain bricked
collection for unrelated suites (`tests/policies/pi0_pi05/...`,
`tests/envs/...`, etc.).

* Stop re-exporting `RenderMessagesStep` from `lerobot.processor`. The
  only consumer (the test) already imports from the submodule.
  Document the deliberate omission in the module docstring.
* Add `pytest.importorskip("datasets", ...)` (and `pandas` where
  needed) at the top of the four PR-added tests that exercise the
  language stack:
  - tests/datasets/test_language.py
  - tests/datasets/test_language_render.py
  - tests/processor/test_render_messages_processor.py
  - tests/utils/test_collate.py

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(language): address review — tools accessor, motion docs, conditional collate

* **`meta.tools` actually reads `info.json["tools"]`.** `DatasetInfo`
  had no `tools` field, so `from_dict` silently dropped the key (it
  warned about unknown fields then discarded them) and the property
  always returned `DEFAULT_TOOLS`. Added `tools: list[dict] | None`
  to the dataclass; `to_dict()` drops it when unset so existing
  datasets keep a clean `info.json`. Fixed the accessor to read
  `self.info.tools` (the previous `.get(...)` would have raised
  AttributeError on the dataclass anyway). Added regression tests:
  fallback when absent, round-trip from disk, and round-trip
  through `DatasetInfo.from_dict` / `to_dict`.

* **`motion` is not view-dependent — fix the docs.** The mdx claimed
  rows of style `motion` must carry `camera`, but `VIEW_DEPENDENT_STYLES
  = {"vqa", "trace"}` and the validator agrees: motion primitives are
  joint/Cartesian-frame, not pixel-space. Updated both call-out
  paragraphs in `language_and_recipes.mdx`.

* **Conditional `collate_fn` swap.** Added `meta.has_language_columns`
  and gate the `lerobot_collate_fn` swap in `lerobot_train.py` on it,
  so non-language datasets keep PyTorch's `default_collate`. Also
  added a pass-through test in `test_collate.py` that asserts on a
  plain tensor batch the custom collate matches `default_collate`
  key-for-key, plus a test for the `None`-sample drop path.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* review: dedupe regex, centralize column names, harden collate, more tests

* **#2 — dedupe `_PLACEHOLDER_RE`.** The same regex was compiled in
  `recipe.py` and `language_render.py`. Promote to module-level
  `PLACEHOLDER_RE` in `recipe.py` (its primary owner — declares
  template syntax) and import from `language_render.py`.
* **#3 — centralize language column names.** `io_utils.py` had
  hardcoded `{"language_persistent", "language_events"}` literals at
  two sites. Replace with `LANGUAGE_COLUMNS` import so a future column
  rename can't silently desync.
* **#4 — defensive collate preserved-keys.** `lerobot_collate_fn`
  silently filtered language fields from samples that didn't have
  them, which would hand downstream consumers a preserved list
  shorter than the tensor batch. Now: if any sample carries a key,
  every sample in the batch must carry it; otherwise raise a
  `ValueError` so the upstream rendering bug surfaces at the boundary.
* **#5 — `_scalar` rejects non-singleton lists.** Previously a zero-
  or multi-element list fell through and triggered confusing
  `float([])` errors downstream. Now raises `ValueError` with the
  actual length.
* **#6 — refactor `_extract_complementary_data`.** Replace 11 lines
  of `key = {... if ... else {}}` plus an 11-line splat dict with a
  single `_COMPLEMENTARY_KEYS` tuple iterated once.
* **#7 — document `EXTENDED_STYLES`.** Was an empty `set()` with no
  comment. Add a docstring explaining it's an intentional extension
  point: downstream modules append project-local styles before
  `column_for_style` is called.
* **#9 — `tools.mdx` notes the runtime layer is future work.** The
  page referenced `src/lerobot/tools/`, `registry.py`, and
  `get_tools(meta)` — none exist in this PR. Added a callout at the
  start of "How to add your own tool" plus a note on the
  implementations paragraph.
* **#10 — tests for YAML round-trip, malformed rows, blend
  validation.** `test_recipe.py` grew from 1 case to 12 covering:
  blend-or-messages exclusivity, target-turn requirement, blend
  emptiness, weight presence/positivity, nested-blend rejection,
  `from_dict` with nested blends, `from_yaml` / `load_recipe`
  agreement, top-level non-mapping rejection. Added a malformed-row
  test for `_normalize_rows` that asserts non-dict entries raise
  `TypeError`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* review: emitted_at uses 0.1s tolerance; MessageTurn requires stream at construction

* **Float tolerance in `emitted_at` for persistent styles.** The
  ``_timestamp(row) == t`` exact-equality check silently missed any
  caller that derived ``t`` arithmetically (e.g. ``frame_idx / fps``)
  even though the parquet timestamp would only differ by ULPs. Added
  ``EMITTED_AT_TOLERANCE_S = 0.1`` and check ``abs(...) <= tolerance``
  instead, with a docstring explaining why exact equality wasn't
  enough and why 0.1 s is safe at typical 30–100 Hz control rates.
  Test asserts the new behavior at half-window (matches) and
  double-window (no match) using the constant so it stays in sync.

* **`MessageTurn.stream` is required at construction.** It was typed
  ``MessageStream | None = None`` so YAML could omit ``stream:`` and
  pass the dataclass invariant — but ``_validate_rendered`` rejected
  ``None`` streams later, surfacing the error at the first sample
  instead of at recipe load. Now ``__post_init__`` raises
  ``ValueError`` if ``stream`` is ``None``, with the list of valid
  streams in the message. The redundant late-stage check in
  ``_validate_rendered`` is replaced with a one-line comment that
  cites the upstream invariant. Test pins the new construction-time
  rejection.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs(tools): drop follow-up-PR references

Reword the two callouts in `tools.mdx` to describe the runtime layer
in present tense ("not part of the catalog layer shipped today",
"those modules don't yet exist in the tree") instead of pointing at a
specific follow-up PR. Keeps the doc honest about what works now
without coupling it to a particular release order.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* review: address CarolinePascal feedback

- language timestamps: float64 -> float32 to match LeRobotDataset frame
  timestamps (Arrow struct + HF feature)
- dataset_metadata: hoist `.language` imports to module top — language.py
  has no lerobot imports, so there is no circular-import risk
- dataset_metadata: add a `meta.tools` setter that persists the catalog to
  info.json and reloads `meta.info`
- feature_utils: validate the `language` dtype instead of returning "" —
  warn (non-fatal) when a non-empty value is written at record time
- centralize the scalar-unwrap helper as `lerobot.utils.utils.unwrap_scalar`,
  shared by render_messages_processor and language_render
- docs: move `## Layer 2 — recipe anatomy` ahead of the resolver sections,
  which describe recipe bindings rather than dataset layout
- language_render: note in EMITTED_AT_TOLERANCE_S that persistent rows change
  on a human-action timescale, not the camera frame rate

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 14:46:11 +02:00
Caroline Pascal bd9619dfc3 feat(encoding parameters): adding support for user provided video encoding parameters (#3455)
* chore(video backend): renaming codec into video_backend in get_safe_default_video_backend()

* feat(pyav utils): adding suport for PyAV encoding parameters validation

* feat(VideoEncoderConfig): creating a VideoEncoderConfig to encapsulate encoding parameters

* feat(VideoEncoderConfig): propagating the VideoEncoderConfig in the codebase

* chore(docs): updating the docs

* feat(metadata): adding encoding parameters in dataset metadata

* fix(concatenation compatibility): adding compatibility check when concatenating video files

* feat(VideoEncoderConfig init): making VideoEncoderConfig more robust and adaptable to multiple backends

* feat(pyav checks): making pyav parameters checks more robust

* chore(duplicate): removing duplicate get_codec_options definition

* test(existing): adapting existing tests

* test(new): adding new tests for encoding related features

* chore(format): fixing formatting issues

* chore(PyAV): cleaning up PyAV utils and encoding parameters checks to stick to the minimun required tooling.

* chore(format): formatting code

* chore(doctrings): updating docstrings

* fix(camera_encoder_config): Removing camera_encoder_config from LeRobotDataset, as it's only required in LeRobotDatasetWriter.

* feat(default values): applying a consistent naming convention for default RGB cameras video encoder parameters

* fix(rollout): propagating VideoEncoderConfig to the latest recording modes

* chore(format): formatting code, fixing error messages and variable names

* fix(arguments order): reverting changes in arguments order in StreamingVideoEncoder

* chore(relative imports): switching to relative local imports within lerobot.datasets

* test(artifacts): cleaning up artifacts for the video encoding tests

* chore(docs): updating docs

* chore(fromat): formatting code

* fix(imports): refactoring the file architecture to avoid circular imports. VideoEncoderConfig is now defined in lerobot.configs and lazily imports av at runtime.

* fix(typos): fixing typos and small mistakes

* test(factories): updating factories

* feat(aggregate): updating dataset aggregation procedure. Encoding tuning paramters (crf, g,...) are ignored for validation and changed to None in the aggregated dataset if incompatible.

* docs(typos): fixing typos

* fix(deletion): reverting unwanted deletion

* fix(typos): fixing multiple typos

* feat(codec options): passing codec options to lerobot_edit_dataset episode deletion tool

* typo(typo): typo

* fix(typos): fixing remaining typos

* chore(rename): renaming camera_encoder_config to camera_encoder

* docs(clean): cleaning and formating docs

* docs(dataset): addind details about datasets

* chore(format): formatting code

* docs(warning): adding warning regarding encoding parameters modification

* fix(re-encoding): removing inconsistent re-encoding option in lerobot_edit_dataset

* typos(typos): typos

* chore(format): resolving prettier issues

* fix(h264_nvenc): fixing crf handling for h264_nvenc

* docs(clean): removing too technical parts of the docs

* fix(imports): fixing imports at the __init__ level

* fix(imports): fixing not very pretty imports in video config file
2026-05-14 23:46:42 +02:00
Caroline Pascal f218d5ab30 feat(episodes): adding support for metadata based episodes filtering (#3530)
* feat(episode filtering): adding support for episodes filtering at initialization time in LeRobotDataset

* test(tests): adding tests

* chore(format): formatting code

* feat(performance): improving implementation for better performances on big datasets

* chores(warning): improving warnings and errors for episodes filtering

* test(invalid key): adding test for invalid filtering key

* chore(format): formatting code
2026-05-12 20:44:11 +02:00
Maxime Ellerbach cb0a944941 refactor(datasets): replace untyped dict with typed DatasetInfo dataclass (#3472)
* refactor(datasets): replace untyped dict with typed DatasetInfo dataclass

Introduce typed DatasetInfo dataclass to replace untyped dict representation of info.json.

Changes:
- Add DatasetInfo dataclass with explicit fields and validation
- Implement __post_init__ for shape conversion (list ↔ tuple)
- Add dict-style compatibility layer (__getitem__, __setitem__, .get())
- Add from_dict() and to_dict() for JSON serialization
- Update io_utils to use load_info/write_info with DatasetInfo
- Update dataset utilities and metadata to use attribute access
- Remove aggregate.py dict-style field access
- Add tests fixture support for DatasetInfo

Benefits:
- Type safety with IDE auto-completion
- Validation at construction time
- Explicit schema documentation

* fix pre-commit

* update docstring inside DatasetInfo.from_dict()

* sorts the unknown to have deterministic output

Signed-off-by: Maxime Ellerbach <maxime@ellerbach.net>

* refactoring the last few old fieds


* fix crop dataset roi type mismatch


* use consistantly int for data and video_files_size_in_mb

---------

Signed-off-by: Maxime Ellerbach <maxime@ellerbach.net>
Co-authored-by: jjolla93 <jjolla93@gmail.com>
2026-04-28 18:40:30 +02:00
Steven Palma ca87ccd941 feat(rollout): decouple policy deployment from data recording with new lerobot-rollout CLI (#3413)
* feat(scripts): lerobot-rollout

* fix(rollout) require dataset in dagger + use duration too

* fix(docs): dagger num_episodes

* test(rollout): fix expectations

* fix(rollout): features check

* fix(rollout): device and task propagation + feature pos + warn fps + move rename_map config

* docs(rollout): edit rename_map instructions

* chore(rollout): multiple minor improvements

* chore(rollout): address coments + minor improvements

* fix(rollout): enable default

* fix(tests): default value RTCConfig

* fix(rollout): robot_observation_processor and notify_observation at policy frequency instead of interpolator rate

Co-authored-by: Pepijn <138571049+pkooij@users.noreply.github.com>

* fix(rollout): prevent relativeactions with sync inference engine

Co-authored-by: Pepijn <138571049+pkooij@users.noreply.github.com>

* fix(rollout): rtc reanchor to non normalized state

Co-authored-by: Pepijn <138571049+pkooij@users.noreply.github.com>

* fix(rollout): fixing the episode length to use hwc (#3469)

also reducing default length to 5 minutes

* feat(rollout): go back to initial position is now a config

* fix(rollout): properly propagating video_files_size_in_mb to lerobot_dataset (#3470)

* chore(rollout): note about dagger correction stage

* chore(docs): update comments and docstring

* fix(test): move rtc relative out of rollout module

* fix(rollout): address the review comments

---------

Co-authored-by: Pepijn <138571049+pkooij@users.noreply.github.com>
Co-authored-by: Maxime Ellerbach <maxime.ellerbach@huggingface.co>
2026-04-28 00:57:35 +02:00
whats2000 52f508c51c fix(dataset): cleanup_interrupted_episode wipes image temp dirs (#3405) 2026-04-19 12:04:24 +02:00
Steven Palma df0763a2bc feat(dependencies): minimal default tag install (#3362) 2026-04-12 20:03:04 +02:00
Caroline Pascal d762f4bfe8 fix(dataset): adding metadata loading when reading from a dataset after writing (#3305)
* fix(one shot load): adding metadata loading when reading from a dataset after writing

* refactor(one shot load): move metadata reload to ensure_readable() on LeRobotDatasetMetadata

Move the metadata reload from DatasetReader.load_and_activate() to a new
public ensure_readable() method on LeRobotDatasetMetadata, called from
LeRobotDataset._ensure_reader(). This places lifecycle management in the
right layer: metadata owns its readiness check, the dataset orchestrates
the write-to-read transition, and the reader stays clean.

Also adds a regression test using delta_timestamps to exercise the
meta.episodes access path in the create -> write -> finalize -> read flow.

Co-authored-by: Steven Palma <imstevenpmwork@users.noreply.github.com>

---------

Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com>
Co-authored-by: Steven Palma <imstevenpmwork@users.noreply.github.com>
2026-04-10 11:29:40 +02:00
Francesco Capuano 7c032f19fc feat(dataset): registering torchvision transforms (#3153)
* add: a flexible transformation registry

* fix: image transforms can be set both at init and after

* add: tests

* fix: take in review

* feat(datasets): add image transform setters

* fix: pre-commit

* fix: CI

---------

Signed-off-by: Francesco Capuano <74058581+fracapuano@users.noreply.github.com>
2026-04-07 15:59:11 +02:00
Steven Palma 4e45acca52 fix(dataset): use revision-safe Hub cache for downloaded datasets (#3233)
* refactor(dataset): enhance dataset root directory handling and introduce hub cache support

- Updated DatasetConfig and LeRobotDatasetMetadata to clarify root directory behavior and introduce a dedicated hub cache for downloads.
- Refactored LeRobotDataset and StreamingLeRobotDataset to utilize the new hub cache and improve directory management.
- Added tests to ensure correct behavior when using the hub cache and handling different revisions without a specified root directory.

* refactor(dataset): improve root directory handling in LeRobotDataset

- Updated LeRobotDataset to store the requested root path separately from the actual root path.
- Adjusted metadata loading to use the requested root, enhancing clarity and consistency in directory management.

* refactor(dataset): minor improvements for hub cache support

* chore(datasets): guard in resume + assertion test

---------

Co-authored-by: AdilZouitine <adilzouitinegm@gmail.com>
Co-authored-by: mickaelChen <mickael.chen.levinson@gmail.com>
2026-03-27 22:21:55 +01:00
Steven Palma 123495250b refactor(dataset): split LeRobotDataset into DatasetReader & DatasetWriter (+ API cleanup) (#3180)
* refactor(dataset): split reader and writer

* chore(dataset): remove proxys

* refactor(dataset): better reader & writer encapsulation

* refactor(datasets): clean API + reduce leaky implementations

* refactor(dataset): API cleaning for writer, reader and meta

* refactor(dataset): expose writer & reader + other minor improvements

* refactor(dataset): improve teardown routine

* refactor(dataset): add hf_dataset property at the facade level

* chore(dataset): add init for datasset module

* docs(dataset): add docstrings for public API of the dataset classes

* tests(dataset): add tests for new classes

* fix(dataset): remove circular dependecy
2026-03-26 19:09:25 +01:00
Steven Palma d90e4bcfd3 refactor(dataset): modular files (#3171)
* refactor(dataset): modular files

* refactor(dataset): update imports across the codebase
2026-03-15 23:58:09 -07:00
Steven Palma 9d3b62aa61 chore(dataset): basic house-keeping (#3170) 2026-03-15 22:12:09 -07:00
Steven Palma 7c2ec31793 refactor(datasets): module cleanup (#3169) 2026-03-15 20:42:15 -07:00
Steven Palma e96339a3b4 feat(dataset): add streaming video encoding + HW encoder support (#2974)
* feat(dataset): init stream encoding

* feat(dataset): use threads to fix frame pickle latency

* refactor(dataset): remove HW encoded related changes

* add lp (#2977)

* feat(dataset): add Hw encoding + log drop frames (#2978)

* chore(docs): add streaming video encoding guide

* fix(dataset): style docs + testing

* chore(docs): simplify sttreaming video encoding guide

* chore(dataset): add commands + streaming encoding default false + print note if false + queue default is now 30

* chore(docs): add verification note advice

* chore(dataset): adjusting defaults & docs for streaming encoding

* docs(scripts): improve docstrings

* test(dataset): polish streaming encoding tests

* chore(dataset): move FYI log related to streaming

* chore(dataset): add arg vcodec to suggestions

* refactor(dataset): better handling for auto and available vcodec

* chore(dataset): change log level

* docs(dataset): add note related to training performance vcodec

* docs(dataset): add more notes to streaming encoding

---------

Co-authored-by: Caroline Pascal <caroline8.pascal@gmail.com>
Co-authored-by: Pepijn <pepijn@huggingface.co>
2026-02-23 13:57:43 +01:00
Reece O'Mahoney 97e7e0f9ed feat(datasets): improve image transform support (#2885)
* improve image transform support

* add tests

* Add stricter transform check and extra test

* improve subclass check
2026-02-05 15:39:58 +01:00
Jade Choghari b18cef2e26 feat(dataset): add subtask support (#2860)
* add subtask

* remove folder

* add docs

* update doc

* add testing

* update test

* update constant naming + doc

* more docs
2026-01-30 19:29:37 +01:00
Michel Aractingi ec04b7ce3a Feat(dataset_tools.py) Add modify tasks tool (#2875)
* feat(datasets): add modify_tasks function for in-place task editing

Add a new utility function to modify tasks in LeRobotDataset in-place.
This allows users to:
- Set a single task for all episodes
- Set specific tasks for individual episodes
- Combine a default task with per-episode overrides

* feat(edit-dataset): add CLI support for modify_tasks operation

Integrate the modify_tasks function into lerobot_edit_dataset CLI.
Users can now modify dataset tasks via command line:
Supports setting a default task, per-episode tasks, or both combined.

* test(datasets): add tests for modify_tasks function

Add comprehensive test coverage for the modify_tasks utility:
- Single task for all episodes
- Episode-specific task assignment
- Default task with per-episode overrides
- Error handling for missing/invalid arguments
- Verification of task_index correctness
- In-place modification behavior
- Metadata preservation

* respond to copilot review
2026-01-30 13:19:42 +01:00
Michel Aractingi 736b43f3cf Fix(aggregate.py) Aggregation of datasets when sub-datasets are already a result of a previous merge (#2861)
* Fix aggeregation of datasets when subdatasets are already a result of a previous merge

* docstring

* respond to copilot review + add regression test

* Remove unnecessary int conversion for indicies
2026-01-28 13:31:27 +01:00
Jade Choghari 79688a09f2 improve(dataset-tools): image2video editing tools : Multiple episodes per video file (#2811)
* improve image2video

* add episodes video encoding

* fix mypy failing

* iterate on review

* nit

* remove max, and let it be optional

* iterate more

* update docs

* fix test

---------

Co-authored-by: Michel Aractingi <michel.aractingi@huggingface.co>
2026-01-20 11:04:22 +01:00
Francesco Capuano b2ff219624 Fixes aggregation of image datasets (#2717)
* fix: use features when aggregating image based datasets

* add: test asserting for data type

* add: features param to writing dataset

---------

Co-authored-by: Steven Palma <imstevenpmwork@ieee.org>
2026-01-19 23:36:41 +01:00
Alex Tyshka 77dc49b3a3 Fix delta timestamps with episodes filter and add tests (#2612) 2026-01-16 18:14:54 +01:00
Alex Tyshka 33910673ec Bugfix: Add tests for image deletion and fix mixed image-video deletion (#2592)
* Add tests for image deletion and fix mixed-image-video deletion

* Fix docstring whitespace

* Remove debug print

Signed-off-by: Alex Tyshka <atyshka15@gmail.com>

* Remove inaccurate comment

* Remove batched video test

---------

Signed-off-by: Alex Tyshka <atyshka15@gmail.com>
2026-01-16 18:14:15 +01:00
Leo Tronchon 8b6fc0ae05 feat(datasets): expose video codec option for dataset recording (#2771)
* expose codec options + add tests

* pre-commit run -a
2026-01-08 18:06:39 +01:00
Jade Choghari 7f40b3bf82 feat(dataset): add tool to convert images to video datasets (#2560)
* add video encoding tool

* style

* make it work

* more fixes
2025-12-08 18:50:21 +01:00
Michel Aractingi 12f2f35760 - Introduce _current_file_start_frame for better tracking of the number of frames in each parquet file (#2280)
- Added testing for that section in `test_datasets.py`
2025-10-21 16:17:12 +02:00
Bryson Jones 88100943ef add affine transforms and test (#2145)
Co-authored-by: Steven Palma <imstevenpmwork@ieee.org>
2025-10-19 21:39:30 +02:00
Michel Aractingi 8e940bf361 Feat/expand add features (#2202)
* make add_feature take multiple features at a time and rename to add_features

* - New function: modify_features that was a combination of remove features and add features.
 - This function is important for when we want to add a feature and remove another so we can do it in one time to avoid copying and creating the dataset multiple times
2025-10-14 16:19:50 +02:00
Michel Aractingi f2ff370459 Incremental parquet writing (#1903)
* incremental parquet writing

* add .finalise() and a backup __del__ for stopping writers

* fix missing import

* precommit fixes added back the use of embed images

* added lazy loading for hf_Dataset to avoid frequently reloading the dataset during recording

* fix bug in video timestamps

* Added proper closing of parquet file before reading

* Added rigorous testing to validate the consistency of the meta data after creation of a new dataset

* fix bug in episode index during clear_episode_buffer

* fix(empty concat): check for empty paths list before data files concatenation

* fix(v3.0 message): updating v3.0 backward compatibility message.

* added fixes for the resume logic

* answering co-pilot review

* reverting some changes and style nits

* removed unused functions

* fix chunk_id and file_id when resuming

* - fix parquet loading when resuming
- add test to verify the parquet file integrity when resuming so that data files are now overwritten

* added general function get_file_size_in_mb and removed the one for video

* fix table size value when resuming

* Remove unnecessary reloading of the parquet file when resuming record.
Write to a new parquet file when resuming record

* added back reading parquet file for image datasets only

* - respond to Qlhoest comments
- Use pyarrows `from_pydict` function
- Add buffer for episode metadata to write to the parquet file in batches to improve efficiency
- Remove the  use of `to_parquet_with_hf_images`

* fix(dataset_tools) with the new logic using proper finalize
bug in finding the latest path of the metdata that was pointing to the data files
added check for the metadata size in the case the metadatabuffer was not written yet

* nit in flush_metadata_buffer

* fix(lerobot_dataset) return the right dataset len when a subset of the dataset is requested

---------

Co-authored-by: Harsimrat Sandhawalia <hs.sandhawalia@gmail.com>
2025-10-11 11:01:30 +02:00
Michel Aractingi b8f7e401d4 Dataset tools (#2100)
* feat(dataset-tools): add dataset utilities and example script

- Introduced dataset tools for LeRobotDataset, including functions for deleting episodes, splitting datasets, adding/removing features, and merging datasets.
- Added an example script demonstrating the usage of these utilities.
- Implemented comprehensive tests for all new functionalities to ensure reliability and correctness.

* style fixes

* move example to dataset dir

* missing lisence

* fixes mostly path

* clean comments

* move tests to functions instead of class based

* - fix video editting, decode, delete frames and rencode video
- copy unchanged video and parquet files to avoid recreating the entire dataset

* Fortify tooling tests

* Fix type issue resulting from saving numpy arrays with shape 3,1,1

* added lerobot_edit_dataset

* - revert changes in examples
- remove hardcoded split names

* update comment

* fix comment
add lerobot-edit-dataset shortcut

* Apply suggestion from @Copilot

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Michel Aractingi <michel.aractingi@huggingface.co>

* style nit after copilot review

* fix: bug in dataset root when editing the dataset in place (without setting new_repo_id

* Fix bug in aggregate.py when accumelating video timestamps; add tests to fortify aggregate videos

* Added missing output repo id

* migrate delete episode to using pyav instead of decoding, writing frames to disk and encoding again.
Co-authored-by: Caroline Pascal <caroline8.pascal@gmail.com>

* added modified suffix in case repo_id is not set in delete_episode

* adding docs for dataset tools

* bump av version and add back time_base assignment

* linter

* modified push_to_hub logic in lerobot_edit_dataset

* fix(progress bar): fixing the progress bar issue in dataset tools

* chore(concatenate): removing no longer needed concatenate_datasets usage

* fix(file sizes forwarding): forwarding files and chunk sizes in metadata info when splitting and aggregating datasets

* style fix

* refactor(aggregate): Fix video indexing and timestamp bugs in dataset merging

There were three critical bugs in aggregate.py that prevented correct dataset merging:

1. Video file indices: Changed from += to = assignment to correctly reference
   merged video files

2. Video timestamps: Implemented per-source-file offset tracking to maintain
   continuous timestamps when merging split datasets (was causing non-monotonic
   timestamp warnings)

3. File rotation offsets: Store timestamp offsets after rotation decision to
   prevent out-of-bounds frame access (was causing "Invalid frame index" errors
   with small file size limits)

Changes:
- Updated update_meta_data() to apply per-source-file timestamp offsets
- Updated aggregate_videos() to track offsets correctly during file rotation
- Added get_video_duration_in_s import for duration calculation

* Improved docs for split dataset and added a check for the possible case that the split size results in zero episodes

* chore(docs): update merge documentation details

Signed-off-by: Steven Palma <imstevenpmwork@ieee.org>

---------

Co-authored-by: CarolinePascal <caroline8.pascal@gmail.com>
Co-authored-by: Jack Vial <vialjack@gmail.com>
Co-authored-by: Steven Palma <imstevenpmwork@ieee.org>
2025-10-10 12:32:07 +02:00
Pepijn abde7be3b3 Add OpenPi, Pi0 and Pi0.5 (#1910)
* initial commit

* change device in test

* do detailed import

* adhere to python 3.11 syntax

* fix autodocstring

* additionally

* do same in other files

* add model. prefix to all keys in state dict

* use dummy stats

* add pi05

* also shorten action_steps

* fix test

* all test pass! and fix tokenizer max length between 05 and 0

* remove test

* fix transformer dependency

* fix test

* split pi0 and pi05 policy in seperate files

* fix test

* fix push to hub test

* add some comments, license and readme

* remove warning in config

* add pi05 to factory

* remove check

* rename action_horizon to chunk_size

* clean up padding of state and action (more in line with lerobot pi0)

* add openpi image transforms for training and add more flexibility to _preprocess_images similar to lerobot pi0

* fix key match from pytorch state dict (similar keys to openpi implementation now)

* also for pi05

* update to python 3.11

* revert to openpi transformer replace python 3.11

* fix(modeling pi0): nit  warning message

* use safeauto_docstring

* fix: remove unused param

* fix from pretrained

* add preprocess tests

* also compile forward method

* Do not add model prefix to normalization

* use same name for action and state dim as lerobot pi0 and remove fixed image keys

* load from pretrained_path

* temp: hardcode base model

* fix override self.pretrained_path = None overwrite

* rename to loss

* remove additional image augmentations, lerobot dataset already does this

* Add docs

* put tests in test folder

* Add test to instatiate all base models

* go back to python 3.10

* update docs

* adapt docs pi05

* change docs: finetune base model options

* minor docs fixes and dependencies

* remove todo

* cast float64 to float32 for mps

* skip if no transformers

* fix tests

* add new models to modelcard

* add back init

* fix circular input

* feat: only run pi test on GPU

* remove require_nightly_gpu

* replace decorator test_pi0_openpi

* rename action_dim, state_dim to max_action_dim, max_state_dim

* fix doc and constants

* cleanup tests

* fix from pretrained

* fix tests

* add comment pi0 pi05 tests, add image features to pi0 pi05 hub tests

* fix, state is included in language not in flow head

* Move test to specific folder

* and paligemma task with newline

* remove add_special_tokens, not needed

* feedback pr

* Remove previous pi0 and rename pi0_openpi and pi05_openpi

* Add Quantile stats to LeRobotDataset (#1985)

* - Add RunningQuantileStats class for efficient histogram-based quantile computation
- Integrate quantile parameters (compute_quantiles, quantiles) into LeRobotDataset
- Support quantile computation during episode collection and aggregation
- Add comprehensive function-based test suite (24 tests) for quantile functionality
- Maintain full backward compatibility with existing stats computation
- Enable configurable quantiles (default: [0.01, 0.99]) for robust normalization

* style fixes, make quantiles computation by default to new datasets

* fix tests

* - Added DEFAULT_QUANTILES=[0.01, 0.10, 0.50, 0.90, 0.99] to be computed for each features instead of being chosen by the user
- Fortified tests.

* - add helper functions to reshape stats
- add missing test for quantiles

* - Add QUANTILE normalization mode to normalize the data with the 1st and 99th percentiles.
- Add QUANTILE10 normalization mode to normalize the data with the 10th and 90th percentiles.

* style fixes

* Added missing lisence

* Simplify compute_stats

* - added script `augment_dataset_quantile_stats.py` so that we can add quantile stats to existing v3 datasets that dont have quatniles
- modified quantile computation instead of using the edge for the value, interpolate the values in the bin

* rename pi0/pi05 files

* Remove open pi patch and use custom transformer branch for now

* renaming

* fix

* Revert "fix"

This reverts commit 1ea65730ac.

* fix naming

* feet(pi0/pi0.5): add pipeline (#2009)

* feat(processor): convert openpi model with processor

* TODO: Make test works

* fix(modeling_pi0openpi): update attention mask value and time scaling; improve task handling in tests

- Changed the attention mask value from `self.config.attention_mask_value` to a fixed value of `-2.3819763e38`.
- Updated time scaling in the `sample_noise` method to use a constant factor of `0.999` and an offset of `0.001`.
- Enhanced task handling in tests to ensure proper formatting and batch size consistency.
- Cleaned up commented-out test code for clarity.

* refactor(pi0): rename PI0OpenPIConfig and PI0OpenPIPolicy to PI0Config and PI0Policy

- Updated imports and references throughout the codebase to reflect the new naming convention.
- Introduced a new processor file for PI0 to handle pre-processing and post-processing steps.
- Adjusted tests to utilize the renamed classes, ensuring consistency and functionality.
- Enhanced clarity and maintainability by removing outdated naming conventions.

* refactor(pi05): rename PI0OpenPIPolicy to PI0Policy and update configuration

- Renamed `PI0OpenPIPolicy` to `PI0Policy` for consistency with naming conventions.
- Updated the `PI05OpenPIConfig` to include a new `tokenizer_max_length` attribute and changed the normalization mode for state from `MEAN_STD` to `QUANTILES`.
- Simplified model initialization in `PI05OpenPIPolicy` by removing unused `dataset_stats` parameter.
- Added a new processor class for `Pi05PrepareStateTokenizerProcessorStep` with `@dataclass` for improved readability.
- Introduced a test script to compare the integration of the PI0OpenPI policy with the original implementation, ensuring local testing compatibility.

* feat(processor): convert openpi model with processor

* TODO: Make test works

* fix(modeling_pi0openpi): update attention mask value and time scaling; improve task handling in tests

- Changed the attention mask value from `self.config.attention_mask_value` to a fixed value of `-2.3819763e38`.
- Updated time scaling in the `sample_noise` method to use a constant factor of `0.999` and an offset of `0.001`.
- Enhanced task handling in tests to ensure proper formatting and batch size consistency.
- Cleaned up commented-out test code for clarity.

* refactor(pi0): rename PI0OpenPIConfig and PI0OpenPIPolicy to PI0Config and PI0Policy

- Updated imports and references throughout the codebase to reflect the new naming convention.
- Introduced a new processor file for PI0 to handle pre-processing and post-processing steps.
- Adjusted tests to utilize the renamed classes, ensuring consistency and functionality.
- Enhanced clarity and maintainability by removing outdated naming conventions.

* refactor(pi05): rename PI0OpenPIPolicy to PI0Policy and update configuration

- Renamed `PI0OpenPIPolicy` to `PI0Policy` for consistency with naming conventions.
- Updated the `PI05OpenPIConfig` to include a new `tokenizer_max_length` attribute and changed the normalization mode for state from `MEAN_STD` to `QUANTILES`.
- Simplified model initialization in `PI05OpenPIPolicy` by removing unused `dataset_stats` parameter.
- Added a new processor class for `Pi05PrepareStateTokenizerProcessorStep` with `@dataclass` for improved readability.
- Introduced a test script to compare the integration of the PI0OpenPI policy with the original implementation, ensuring local testing compatibility.

* refactor(pi05): update imports and rename configuration classes

- Changed imports to reflect the new naming convention for PI05 configuration and policy classes.
- Renamed `PI05OpenPIConfig` to `PI05Config` and `PI05OpenPIPolicy` to `PI05Policy` for consistency.
- Introduced a new processor file for PI05, implementing pre-processing and post-processing steps.
- Updated tests to utilize the renamed classes, ensuring functionality and consistency across the codebase.

* update(pi05): increase tokenizer_max_length for improved processing

- Changed the `tokenizer_max_length` from 48 to 200 to enhance the model's capability in handling longer sequences.
- This adjustment aims to improve the overall performance and flexibility of the PI05 configuration.

* add default for state (max_state_dim)

* correct naming

* fix import

* cleanup code

* remove unused test

* us quantiles for action

* move to device

* remove discrete state assert

* fix pi05 test

* move pi05 to device

* use base models in comparison tests

* small renames for tests

* change number of tokens pi05 test

* fix openpi tokenization in test

* fix hub test

* fix test

* assert lerobot vs openpi tests

---------

Co-authored-by: Pepijn <pepijn@huggingface.co>

* add headers

* add back previously removed imports

* update if statement load processor with dataset stats

* remove to avoid circular import

* inject dataset stats for pretrained models

* check normalization before applying

* add link to  quantile augument script

* fix(policies): transformers import for ci in PI0 & PI05 (#2039)

* fix(policies): transformers import for ci in PI0

* fix(policies): transformers import for ci in PI05

* test(processor): fix expected raise when normalization types are missing (#2040)

* switch normalization order pipeline for pi05

* Fix/quantiles script (#2064)

* refactor augment stats with quantiles script
add parallelization for faster processing
shift the quantile normalization between -1 1

* fix replay buffer tests

* fix comment

* overwrite the pipeline normalization features with the policy features

* remove double normalization overwrite

* cleanup from pretrained

* remove typo

* also set norm_map

* fix(augment_quantiles) images incorrectly divided by 255

* clamp quantiles

* link to lerobot base models

* rename tests

* encorperate PR feedback

* update docstring for RunningQuantileStats

* update doc links

* Revert "clamp quantiles"

This reverts commit 172207471c.

* fix self.paligemma

* fix tests related to quantiles that were scaled to [0,1], the new range is [-1, 1]

* fix libero doc and use different transformer branch

* use fix branch instead of feat

* update results libero

* add new line

* fix formatting

* precommit

* update results libero

* update libero doc

* update title

* final changes

* add quantiles to test

* run pre commit

---------

Signed-off-by: Steven Palma <imstevenpmwork@ieee.org>
Co-authored-by: Michel Aractingi <michel.aractingi@huggingface.co>
Co-authored-by: Adil Zouitine <adilzouitinegm@gmail.com>
Co-authored-by: Steven Palma <imstevenpmwork@ieee.org>
Co-authored-by: Steven Palma <steven.palma@huggingface.co>
2025-10-02 13:14:45 +02:00
Steven Palma bbcf66bd82 chore: enable simplify in ruff lint (#2085) 2025-09-29 15:06:56 +02:00
Steven Palma c5b5955c5a chore: replace hard-coded next values with constants throughout all the source code (#2056) 2025-09-26 14:30:07 +02:00
Steven Palma d2782cf66b chore: replace hard-coded action values with constants throughout all the source code (#2055)
* chore: replace hard-coded 'action' values with constants throughout all the source code

* chore(tests): replace hard-coded action values with constants throughout all the test code
2025-09-26 13:33:18 +02:00
Steven Palma 43d878a102 chore: replace hard-coded obs values with constants throughout all the source code (#2037)
* chore: replace hard-coded OBS values with constants throughout all the source code

* chore(tests): replace hard-coded OBS values with constants throughout all the test code
2025-09-25 15:36:47 +02:00
Steven Palma 7cf04a5ec3 chore: move constants to utils (#2016) 2025-09-24 11:11:53 +02:00
Steven Palma c9787bd98a feat(script): add entry point for image transform viz (#2007)
* feat(Scripts): add entry point for img transform viz

* chore(style): pre-commit style
2025-09-23 18:47:36 +02:00
Steven Palma c435d3cebc feat(script): add entry point for dataset viz (#2006)
* chore(scripts): rename script dataset viz

* feat(scripts): add entry point for dataset-viz

---------

Signed-off-by: Steven Palma <imstevenpmwork@ieee.org>
2025-09-23 18:46:27 +02:00