spdl.io.Decoder¶

Decoder(codec: AudioCodec, *, filter_desc: str | None = _FILTER_DESC_DEFAULT, decode_config: DecodeConfig | None = None) → AudioDecoder[source]¶

Decoder(codec: VideoCodec, *, filter_desc: str | None = _FILTER_DESC_DEFAULT, decode_config: DecodeConfig | None = None) → VideoDecoder

Decoder(codec: ImageCodec, *, filter_desc: str | None = _FILTER_DESC_DEFAULT, decode_config: DecodeConfig | None = None) → ImageDecoder

Initialize a decoder object that can incrementally decode packets of the same stream.

Example

src = "foo.mp4"

demuxer = spdl.io.Demuxer(src)
decoder = spdl.io.Decoder(demuxer.video_codec)
for packets in demuxer.streaming_demux_video(num_frames):
    frames: VideoFrames | None = decoder.decode(packets)
    ...

frames: VideoFrames | None = decoder.flush()

Parameters:

codec (AudioCodec, VideoCodec or ImageCodec) – The codec of the incoming packets.
filter_desc (str) – Optional: See decode_packets().
decode_config (DecodeConfig) – Optional: See decode_packets().

Returns:

Decoder instance.