Module audio 

Available on crate features alloc or std only.

Audio-stream descriptor vocabulary — channel layout (the name) and channel layout description (the structure: order, mask, per-channel list), sample / container format, bit-rate mode, EBU R128 loudness, fingerprint, embedded metadata tags + cover art. Requires the alloc feature (std includes it) for the Other(SmolStr) escape arms and the Vec<u8> payloads.

Derive threshold. Every open enum here carries Unwrap / TryUnwrap for its Other(SmolStr) arm. The pair generates three methods per variant, so an enum in the hundreds pays that in compile time for one reachable payload arm; the two 200-plus-variant codec enums in codec are the crate’s only exemptions. The line is variant count, not principle. Audio-stream descriptor vocabulary — channel layout (the name) and channel layout description (the structure), sample / container format, bit-rate mode, EBU R128 loudness, ReplayGain normalization, fingerprint, embedded metadata tags + cover art.

Re-exports

pub use bit_rate_mode::BitRateMode;

pub use channel_layout::ChannelLayout;

pub use channel_layout_description::ChannelLayoutDescription;

pub use channel_order::ChannelOrder;

pub use channel_spec::ChannelSpec;

pub use cover_art::CoverArt;

pub use cover_art::CoverArtError;

pub use fingerprint::Fingerprint;

pub use fingerprint::FingerprintError;

pub use format::ContainerFormat;

pub use format::SampleFormat;

pub use loudness::Loudness;

pub use replay_gain::ReplayGain;

pub use tags::Tags;

Modules

bit_rate_mode

Audio bit-rate mode — the classic Constant / Variable / Average Bit Rate trichotomy.

channel_layout

Audio channel layout vocabulary — the common named layouts plus an Other(SmolStr) lossless escape for anything outside the closed set.

channel_layout_description

The full structural description of an audio channel layout — order, channel count, mask, per-channel list, and the backend’s rendering.

channel_order

Audio channel order — how a layout’s channels are arranged, mirroring FFmpeg’s AVChannelOrder.

channel_spec

One channel’s entry in a custom-ordered layout — index, backend raw id, and an optional label.

cover_art

Embedded audio cover art — a typed (mime, data) pair carried in ID3v2 APIC frames / MP4 covr atoms / Vorbis METADATA_BLOCK_PICTURE / FLAC PICTURE blocks.

fingerprint

Audio fingerprint — algorithm-tagged raw bytes.

format

Audio sample-format vocabulary (SampleFormat, FFmpeg AVSampleFormat) and audio-only container-format vocabulary (ContainerFormat, audio file extensions).

loudness

EBU R128 / ITU-R BS.1770 loudness measurement: integrated loudness, loudness range, true peak, and sample peak.

replay_gain

ReplayGain — container-tagged loudness-normalization recommendation.

tags

Embedded audio metadata tags — FFmpeg / Vorbis-Comment / iTunes atom-style key-value side data (artist, album, year, genre, …).