spdl.io.decode_packets_nvdec

decode_packets_nvdec(packets: VideoPackets, *, device_config: CUDAConfig, pix_fmt: str = 'rgb', **kwargs) → CUDABuffer[source]

[Experimental] Decode packets with NVDEC.

Warning

This API is exmperimental. The performance is not probed, and the specification might change.

Changed in version 0.0.10:

  • The alpha channel was removed, and the supported format values were changed from "rgba" and "bgra" to "rgb" and "bgr".

  • width and height options were renamed to scale_width and scale_height.

Note

Unlike FFmpeg-based decoding, NVDEC returns GPU buffer directly.

See also

NvDecDecoder: The underlying decoder implementation, which supports incremental decoding.

Parameters:

  • packets – Packets object.

  • device_config – The device to use for decoding. See spdl.io.cuda_config().

  • crop_left (int) – Optional: Crop the given number of pixels from each side.

  • crop_top (int) – Optional: Crop the given number of pixels from each side.

  • crop_right (int) – Optional: Crop the given number of pixels from each side.

  • crop_bottom (int) – Optional: Crop the given number of pixels from each side.

  • scale_width (int) – Optional: Resize the frame. Resizing is done after cropping.

  • scale_height (int) – Optional: Resize the frame. Resizing is done after cropping.

  • pix_fmt (str or None) – Optional: Change the format of the pixel. Supported value is "rgb" and "bgr". Default: "rgb".

Returns:

A CUDABuffer object.