ValueError: нет действительного потока, найденного во входном файле. Является ли -1 желаемого типа медиа? ⇐ Python

[Anonymous]

При использовании TORCHCODEC со следующим кодом

Код: Выделить всё

import torchcodec
file_path = "/path/to/episode_000000.mp4"
x = torchcodec.decoders.VideoDecoder(file_path, seek_mode="approximate")
< /code>
Я получил следующую ошибку: < /p>
[rank0]:   File "/home/hzxie/Applications/miniconda3/envs/lerobot/lib/python3.10/site-packages/torch/utils/data/dataloader.py", line 764, in _next_data
[rank0]:     data = self._dataset_fetcher.fetch(index)  # may raise StopIteration
[rank0]:   File "/home/hzxie/Applications/miniconda3/envs/lerobot/lib/python3.10/site-packages/torch/utils/data/_utils/fetch.py", line 52, in fetch
[rank0]:     data = [self.dataset[idx] for idx in possibly_batched_index]
[rank0]:   File "/home/hzxie/Applications/miniconda3/envs/lerobot/lib/python3.10/site-packages/torch/utils/data/_utils/fetch.py", line 52, in 
[rank0]:     data = [self.dataset[idx] for idx in possibly_batched_index]
[rank0]:   File "/home/hzxie/Development/vla/utils/datasets.py", line 214, in __getitem__
[rank0]:     else self._get_episode(ep_idx)
[rank0]:   File "/home/hzxie/Development/vla/utils/datasets.py", line 192, in _get_episode
[rank0]:     episode[video_key] = self._get_video_bytes(ep_idx, video_key)
[rank0]:   File "/home/hzxie/Development/vla/utils/datasets.py", line 202, in _get_video_bytes
[rank0]:     x = torchcodec.decoders.VideoDecoder(vbytes)
[rank0]:   File "/home/hzxie/Applications/miniconda3/envs/lerobot/lib/python3.10/site-packages/torchcodec/decoders/_video_decoder.py", line 98, in __init__
[rank0]:     core.add_video_stream(
[rank0]:   File "/home/hzxie/Applications/miniconda3/envs/lerobot/lib/python3.10/site-packages/torch/_ops.py", line 723, in __call__
[rank0]:     return self._op(*args, **kwargs)
[rank0]: ValueError: No valid stream found in input file. Is -1 of the desired media type?

Как решить эту проблему?


Подробнее здесь: https://stackoverflow.com/questions/796 ... media-type