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Encode GPU frames with pix_fmt=cuda, expose VideoFrame.sw_format A hardware frame (e.g. a CUDA frame from DLPack) carries its own frames context. nvenc and friends require hw_frames_ctx to be set before avcodec_open2, so adopt the frame's before opening the encoder. This lets GPU frames encode on-device with no download/upload round-trip. Also expose VideoFrame.sw_format, which returns the underlying software pixel format (nv12, yuv444p, p010le, ...) for a hardware frame and None otherwise. closes #2199
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Encode GPU frames with pix_fmt=cuda, expose VideoFrame.sw_format
A hardware frame (e.g. a CUDA frame from DLPack) carries its own frames context. nvenc and friends require hw_frames_ctx to be set before avcodec_open2, so adopt the frame's before opening the encoder. This lets GPU frames encode on-device with no download/upload round-trip.
Also expose VideoFrame.sw_format, which returns the underlying software pixel format (nv12, yuv444p, p010le, ...) for a hardware frame and None otherwise.
closes #2199