Enum Output 

#[non_exhaustive]
pub enum Output {
    Init(Vec<u8>),
    Samples {
        track_id: u32,
        samples: Vec<Sample>,
    },
    Discontinuity,
    EndOfStream,
}

One unit of decoded output, drained in order via crate::client::HlsClient::next_output.

The ordering contract: exactly one Output::Init is emitted before any Output::Samples for a given track, and Samples are emitted in decode order with no gap and no repeat — a fetched Part’s samples are emitted exactly once, whether it arrived as a standalone Part fetch or was coalesced into its parent’s closed-segment view (see the crate docs’ “Dedup” section).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Init(Vec<u8>)

The Media Initialization Section bytes (ftyp+moov, RFC 8216bis §4.4.4.5’s EXT-X-MAP resource) — hand to the decoder once before any Samples. Re-emitted only when the playlist’s EXT-X-MAP changes (e.g. across an EXT-X-DISCONTINUITY).

Samples

Newly available coded samples (access units) for one track, in decode order, demuxed from a fetched Part or Segment resource via transmux::Fmp4Demux.

Fields

track_id: u32

Track ID, matching the moov’s trak.tkhd.track_ID (ISO/IEC 14496-12 §8.3.2) carried by the preceding Output::Init.

samples: Vec<Sample>

The samples, in decode order.

Discontinuity

EXT-X-DISCONTINUITY (RFC 8216 §4.3.4.3): the encoding, timestamps, tracks, or codec parameters may have changed between the previously emitted samples and the ones that follow this marker. Forwarded verbatim so the sink can flush/reset its decoder pipeline.

EndOfStream

The playlist reached #EXT-X-ENDLIST (RFC 8216 §4.3.3.4) with no further open segment or preload hint outstanding — playback is complete, no more output will ever be produced.

Trait Implementations

impl Clone for Output

fn clone(&self) -> Output

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Output

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.