Datasets:
The dataset viewer is not available for this subset.
Exception: SplitsNotFoundError
Message: The split names could not be parsed from the dataset config.
Traceback: Traceback (most recent call last):
File "tsfile/tsfile_py_cpp.pyx", line 567, in tsfile.tsfile_py_cpp.tsfile_reader_new_c
tsfile.exceptions.FileOpenError: 28:
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 286, in get_dataset_config_info
for split_generator in builder._split_generators(
~~~~~~~~~~~~~~~~~~~~~~~~~^
StreamingDownloadManager(base_path=builder.base_path, download_config=download_config)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/tsfile/tsfile.py", line 271, in _split_generators
scan = self._scan_metadata(all_files)
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/tsfile/tsfile.py", line 318, in _scan_metadata
with self._open_reader(file) as reader:
~~~~~~~~~~~~~~~~~^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/tsfile/tsfile.py", line 742, in _open_reader
return TsFileReader(file)
File "tsfile/tsfile_reader.pyx", line 323, in tsfile.tsfile_reader.TsFileReaderPy.__init__
SystemError: <class '_weakrefset.WeakSet'> returned a result with an exception set
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/src/services/worker/src/worker/job_runners/config/split_names.py", line 71, in compute_split_names_from_streaming_response
for split in get_dataset_split_names(
~~~~~~~~~~~~~~~~~~~~~~~^
path=dataset,
^^^^^^^^^^^^^
config_name=config,
^^^^^^^^^^^^^^^^^^^
token=hf_token,
^^^^^^^^^^^^^^^
)
^
File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 340, in get_dataset_split_names
info = get_dataset_config_info(
path,
...<6 lines>...
**config_kwargs,
)
File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 291, in get_dataset_config_info
raise SplitsNotFoundError("The split names could not be parsed from the dataset config.") from err
datasets.inspect.SplitsNotFoundError: The split names could not be parsed from the dataset config.Need help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
Piper Joystick Test Video TsFile
Apache TsFile edition of maskjp/piper-joystick-test-video, a LeRobot v2.0 Piper manipulation dataset. It contains synchronized robot state/action signals for picking up an orange object from a table and placing it in a box.
Source and Attribution
- Publisher and uploader:
maskjp. The source card does not name a separate individual author. - License: Apache-2.0.
- Paper and citation: not supplied by the source card.
- Robot type:
piper; sampling rate: 20 fps. - Split:
train; 30 episodes; 19,963 frame rows; one task. - Numeric source layout:
data/chunk-{episode_chunk:03d}/episode_{episode_index:06d}.parquet(30 files, 1,305,117 bytes). - TsFile path:
data/maskjp_piper_joystick_test_video.tsfile; table:maskjp_piper_joystick_test_video; size: 545,071 bytes (0.418 of the source Parquet bytes).
Schema
| Role | Columns | Type and storage |
|---|---|---|
| TIME | Time |
TIMESTAMP, TS_2DIFF + LZ4 |
| TAG | episode_index, task_index |
TsFile table/device tags |
| FIELD | frame_index, sample_index |
INT64, TS_2DIFF + ZSTD |
| FIELD | next_done, correction |
BOOLEAN, RLE + LZ4 |
| FIELD | observation_state_0 ... observation_state_6 |
FLOAT, GORILLA + ZSTD |
| FIELD | action_0 ... action_6 |
FLOAT, GORILLA + ZSTD |
Time = round(timestamp * 1000) in milliseconds and restarts at zero for each episode. The redundant source timestamp column is then dropped because it equals Time / 1000 seconds. Source index is renamed sample_index, next.done is renamed next_done, and frame_index is retained. The two 7-element vectors are flattened in source order. No rows or numeric/boolean dimensions are dropped.
Videos
The original repository stores 90 frame-aligned H.264 MP4 files, 30 per camera stream, at:
Their source path is videos/chunk-{episode_chunk:03d}/{video_key}/episode_{episode_index:06d}.mp4. Videos are not included here; use episode_index and frame_index to align TsFile rows with the original MP4 frames.
Read Example
from tsfile import TsFileReader
reader = TsFileReader("data/maskjp_piper_joystick_test_video.tsfile")
with reader.query_table(
"maskjp_piper_joystick_test_video",
["episode_index", "task_index", "frame_index", "next_done", "action_0"],
batch_size=65536,
) as result:
print(result.read_arrow_batch().to_pandas().head())
reader.close()
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