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lerobot/examples/behavior_1k/convert_to_lerobot_v3.py
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2025-10-24 14:17:30 +02:00

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Python
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#!/usr/bin/env python
import argparse
import h5py
import numpy as np
import os
import torch as th
from pathlib import Path
from tqdm import tqdm
import logging
from .behavior_lerobot_dataset_v3 import BehaviorLeRobotDatasetV3
from .behaviour_1k_constants import TASK_NAMES_TO_INDICES, TASK_INDICES_TO_NAMES, BEHAVIOR_DATASET_FEATURES
from lerobot.utils.utils import init_logging
init_logging()
def load_hdf5_episode(hdf5_path: str, episode_id: int = 0) -> dict:
"""
Load episode data from HDF5 file.
Args:
hdf5_path: Path to the HDF5 file
episode_id: Episode ID to load (default: 0)
Returns:
Dictionary containing episode data
"""
episode_data = {}
with h5py.File(hdf5_path, "r") as f:
# Find the episode with most samples if episode_id not specified
if episode_id == -1:
num_samples = [f["data"][key].attrs["num_samples"] for key in f["data"].keys()]
episode_id = num_samples.index(max(num_samples))
demo_key = f"demo_{episode_id}"
if demo_key not in f["data"]:
raise ValueError(f"Episode {episode_id} not found in {hdf5_path}")
demo_data = f["data"][demo_key]
# Load actions
episode_data["action"] = np.array(demo_data["action"][:])
# Load observations
episode_data["obs"] = {}
for key in demo_data["obs"].keys():
episode_data["obs"][key] = np.array(demo_data["obs"][key][:])
# Load attributes
episode_data["attrs"] = {}
for attr_name in demo_data.attrs:
episode_data["attrs"][attr_name] = demo_data.attrs[attr_name]
# Add global attributes
for attr_name in f["data"].attrs:
episode_data["attrs"][f"global_{attr_name}"] = f["data"].attrs[attr_name]
return episode_data
def convert_episode(
data_folder: str,
output_repo_id: str,
task_id: int,
demo_id: int,
dataset: BehaviorLeRobotDatasetV3,
include_videos: bool = True,
include_segmentation: bool = True,
) -> None:
"""
Convert a single episode from HDF5 to LeRobotDataset v3.0 format.
Args:
data_folder: Base data folder containing HDF5 files
output_repo_id: Output repository ID for the dataset
task_id: Task ID
demo_id: Demo ID (episode ID)
dataset: BehaviorLeRobotDatasetV3 instance to add data to
include_videos: Whether to include video data
include_segmentation: Whether to include segmentation data
"""
# Construct paths
task_name = TASK_INDICES_TO_NAMES[task_id]
hdf5_path = f"{data_folder}/2025-challenge-rawdata/task-{task_id:04d}/episode_{demo_id:08d}.hdf5"
if not os.path.exists(hdf5_path):
logging.error(f"HDF5 file not found: {hdf5_path}")
return
logging.info(f"Converting episode {demo_id} from task {task_name}")
# Load episode data
try:
episode_data = load_hdf5_episode(hdf5_path, episode_id=0)
except Exception as e:
logging.error(f"Failed to load episode data: {e}")
return
# Filter out segmentation if not requested
if not include_segmentation:
keys_to_remove = [k for k in episode_data["obs"].keys() if "seg_instance_id" in k]
for key in keys_to_remove:
del episode_data["obs"][key]
# Add episode to dataset
dataset.add_episode_from_hdf5(
hdf5_data=episode_data,
task_id=task_id,
episode_id=demo_id,
include_videos=include_videos,
)
def convert_dataset(
data_folder: str,
output_repo_id: str,
task_names: list = None,
episode_ids: list = None,
max_episodes_per_task: int = None,
include_videos: bool = True,
include_segmentation: bool = True,
fps: int = 30,
batch_encoding_size: int = 1,
image_writer_processes: int = 0,
image_writer_threads: int = 4,
push_to_hub: bool = False,
) -> None:
"""
Convert BEHAVIOR-1K dataset from HDF5 to LeRobotDataset v3.0 format.
Args:
data_folder: Base folder containing HDF5 data
output_repo_id: Output repository ID (e.g., "username/dataset-name")
task_names: List of task names to convert (None = all tasks)
episode_ids: Specific episode IDs to convert (None = all episodes)
max_episodes_per_task: Maximum episodes per task to convert
include_videos: Whether to include video data
include_segmentation: Whether to include segmentation data
fps: Frames per second
batch_encoding_size: Number of episodes to batch before encoding
image_writer_processes: Number of processes for image writing
image_writer_threads: Number of threads for image writing
push_to_hub: Whether to push to HuggingFace Hub
"""
# Create output directory
output_dir = Path.home() / ".cache/huggingface/lerobot" / output_repo_id
output_dir.mkdir(parents=True, exist_ok=True)
logging.info(f"Converting dataset to: {output_dir}")
# Initialize dataset
dataset = BehaviorLeRobotDatasetV3.create(
repo_id=output_repo_id,
root=output_dir,
fps=fps,
robot_type="R1Pro",
use_videos=include_videos,
video_backend="pyav",
batch_encoding_size=batch_encoding_size,
image_writer_processes=image_writer_processes,
image_writer_threads=image_writer_threads,
)
# Determine which tasks to process
if task_names is None:
task_names = list(TASK_NAMES_TO_INDICES.keys())
task_ids = [TASK_NAMES_TO_INDICES[name] for name in task_names]
# Process each task
total_episodes = 0
for task_id in tqdm(task_ids, desc="Processing tasks"):
task_name = TASK_INDICES_TO_NAMES[task_id]
task_folder = f"{data_folder}/2025-challenge-rawdata/task-{task_id:04d}"
if not os.path.exists(task_folder):
logging.warning(f"Task folder not found: {task_folder}")
continue
# Find all episodes for this task
if episode_ids is not None:
# Use specified episode IDs
task_episode_ids = [eid for eid in episode_ids if eid // 10000 == task_id]
else:
# Find all episodes in the task folder
task_episode_ids = []
for filename in os.listdir(task_folder):
if filename.startswith("episode_") and filename.endswith(".hdf5"):
eid = int(filename.split("_")[1].split(".")[0])
task_episode_ids.append(eid)
task_episode_ids.sort()
# Limit episodes if requested
if max_episodes_per_task is not None:
task_episode_ids = task_episode_ids[:max_episodes_per_task]
logging.info(f"Processing {len(task_episode_ids)} episodes for task {task_name}")
# Convert each episode
for demo_id in tqdm(task_episode_ids, desc=f"Task {task_name}", leave=False):
try:
convert_episode(
data_folder=data_folder,
output_repo_id=output_repo_id,
task_id=task_id,
demo_id=demo_id,
dataset=dataset,
include_videos=include_videos,
include_segmentation=include_segmentation,
)
total_episodes += 1
except Exception as e:
logging.error(f"Failed to convert episode {demo_id}: {e}")
continue
logging.info(f"Converted {total_episodes} episodes total")
# Finalize dataset
logging.info("Finalizing dataset...")
dataset.finalize()
# Push to hub if requested
if push_to_hub:
logging.info("Pushing dataset to HuggingFace Hub...")
dataset.push_to_hub(
private=True,
license="apache-2.0",
)
logging.info("Conversion complete!")
def main():
parser = argparse.ArgumentParser(description="Convert BEHAVIOR-1K data to LeRobotDataset v3.0")
parser.add_argument("--data_folder", type=str, required=True, help="Path to the data folder")
parser.add_argument("--output_repo_id", type=str, required=True,
help="Output repository ID (e.g., 'username/behavior-dataset-v3')")
parser.add_argument("--task_names", type=str, nargs="+", default=None,
help="Task names to convert (default: all)")
parser.add_argument("--episode_ids", type=int, nargs="+", default=None,
help="Specific episode IDs to convert")
parser.add_argument("--max_episodes_per_task", type=int, default=None,
help="Maximum episodes per task to convert")
parser.add_argument("--no_videos", action="store_true",
help="Exclude video data")
parser.add_argument("--no_segmentation", action="store_true",
help="Exclude segmentation data")
parser.add_argument("--fps", type=int, default=30,
help="Frames per second (default: 30)")
parser.add_argument("--batch_encoding_size", type=int, default=1,
help="Number of episodes to batch before encoding videos")
parser.add_argument("--image_writer_processes", type=int, default=0,
help="Number of processes for async image writing")
parser.add_argument("--image_writer_threads", type=int, default=4,
help="Number of threads for image writing")
parser.add_argument("--push_to_hub", action="store_true",
help="Push dataset to HuggingFace Hub")
args = parser.parse_args()
# Convert dataset
convert_dataset(
data_folder=args.data_folder,
output_repo_id=args.output_repo_id,
task_names=args.task_names,
episode_ids=args.episode_ids,
max_episodes_per_task=args.max_episodes_per_task,
include_videos=not args.no_videos,
include_segmentation=not args.no_segmentation,
fps=args.fps,
batch_encoding_size=args.batch_encoding_size,
image_writer_processes=args.image_writer_processes,
image_writer_threads=args.image_writer_threads,
push_to_hub=args.push_to_hub,
)
if __name__ == "__main__":
main()