Struct Decoder 

pub struct Decoder { /* private fields */ }

Decodes container payloads (the codec bitstream) into raw Frames.

The bring-your-own-payload layer under Consumer: use it when the frames don’t come from a plain track subscription, e.g. a transcoder serving individually fetched groups. Feed it the payload of each container frame in decode order; it handles avc1/hvc1 -> Annex-B conversion, passes AV1 OBU temporal units through, and gates output until the first keyframe.

Implementations

impl Decoder

pub fn new(catalog: &VideoConfig, config: &Config) -> Result<Self, Error>

Build a decoder for the catalog’s video config. Errors if the codec is not supported by the native backends.

pub fn name(&self) -> &str

The decoder backend name in use, e.g. "videotoolbox".

pub fn decode( &mut self, payload: &Bytes, timestamp: Timestamp, keyframe: bool, ) -> Result<Vec<Frame>, Error>

Decode one container frame, returning zero or more raw frames. timestamp is this frame’s presentation time; it rides through the decoder and comes back on each output frame, so a reordering decoder (B-frames) stamps every picture with its own presentation time rather than this access unit’s. With no reordering the two coincide.

pub fn flush(&mut self) -> Result<Vec<Frame>, Error>

Return the frames the backend still holds once the stream has ended.

Call this after the last access unit and before dropping the decoder. The decoder remains reusable and waits for a keyframe before accepting the next stream.