from torchcodec.decoders import set_cuda_backend, VideoDecoder

with set_cuda_backend("beta"):
    dec = VideoDecoder("file.mp4", device="cuda")

# All existing methods are supported
batch = dec.get_frames_at(...)

Custom Frame Mappings

Video decoding now accepts pre-computed frame index data for faster VideoDecoder instantiation speeds, while maintaining exact frame seeking accuracy.

Read more about this feature in our tutorial!

Enhancements

• #935, #947 - Enabled compatibility with FFmpeg8 for Linux and Mac
• #899 - More robust support for 10-bit videos on CUDA.
• #915 - Added support for tensor indices in dec.get_frames_at(indices) and for timestamps in dec.get_frames_played_at(timestamps).

Bug fixes

• #901 - Fixed a rare floating point error in clips_at_regular_timestamps()