Crate moq_audio 

Native audio encoding and decoding for Media over QUIC.

Sits on top of moq_mux and hang and adds the missing piece for native callers: a Rust-native Opus codec implementation that turns raw PCM into the bitstreams moq_mux::codec::opus already knows how to ingest (and vice versa for decode).

• AudioFormat mirrors WebCodecs AudioData.format. The helpers convert between any supported layout and the interleaved f32 representation libopus expects.
• Frame is a thin owned buffer: just a timestamp and a payload. PCM layout lives on the Encoder / Decoder via EncoderInput / EncoderOutput / DecoderOutput, not on each frame, so callers can’t drift between calls.
• Encoder / Decoder are the Opus codec types.
• AudioProducer / AudioConsumer wire those together with moq_mux::container and the hang catalog.

Re-exports

pub use consumer::AudioConsumer;

pub use producer::AudioProducer;

Modules

consumer

Subscribe to an encoded audio track and emit raw PCM.

producer

Publish raw PCM as encoded audio in a moq broadcast.

Structs

Decoder

Opus decoder producing interleaved f32 PCM.

DecoderOutput

PCM layout the caller wants out of Decoder::decode_f32 / AudioConsumer::read. sample_rate and channels None means “match the codec’s native shape from the catalog”.

Encoder

Opus encoder over the PCM layout declared in EncoderInput.

EncoderInput

PCM layout the caller hands to Encoder::encode_f32 / AudioProducer::write.

EncoderOutput

Codec-side configuration. sample_rate and channels are optional overrides; None means “match input (snapping the rate up to a libopus-supported value if necessary)”.

Frame

One unit of audio passed across the codec boundary.

Resampler

Sample-rate converter over interleaved f32 PCM.

Enums

AudioError

Errors returned by moq-audio.

AudioFormat

Raw PCM sample format.

Codec

Codec identifier. Opus is the only variant today; AAC may follow.

Functions

pick_opus_rate

Snap an arbitrary sample rate up to the nearest libopus-supported rate (8/12/16/24/48 kHz); falls back to 48 kHz for anything above.