Crate timed_metadata 

Timed-metadata / DPI signalling conversion core.

Translates SCTE-35 splice information to and from the carriages used in OTT delivery: HLS EXT-X-DATERANGE (RFC 8216 / draft-pantos-hls-rfc8216bis §4.4.5.1) and DASH emsg (SCTE 214-3, scheme urn:scte:scte35:2013:bin).

Conversions are lossless: the original splice_info_section bytes are carried verbatim (DATERANGE SCTE35-OUT hex, emsg message_data).

Pure functions live in convert; the stateful Timeline session adds a wall-clock TimeAnchor and 33-bit PTS wrap-unrolling.

webvtt converts a different kind of timed metadata — CEA-608/708 closed captions — to WebVTT cues (W3C WebVTT + RFC 8216 §3.5 X-TIMESTAMP-MAP), feature cc-data for the CEA-608/708 extraction half. Lossy by design (see its module docs).

Re-exports

pub use anchor::TimeAnchor;

pub use daterange::DateRange;

pub use error::Error;

pub use error::Result;

pub use event::EventKind;

pub use event::MediaDuration;

pub use event::MediaTime;

pub use event::SourcePayload;

pub use event::TimedEvent;

pub use timeline::Timeline;

Modules

anchor

Media-time ↔ wall-clock mapping for conversions that cross into UTC.

convert

Pure conversion functions (the foundation layer).

daterange

HLS EXT-X-DATERANGE model + (de)serialization.

error

Crate error type.

event

Canonical timed-metadata event (the hub of the hub-and-spoke model).

timeline

Stateful conversion session: holds the wall-clock anchor and unrolls 33-bit PTS wrap across a stream of events.

webvtt

CEA-608/708 -> WebVTT cue conversion (issue #568).

Constants

PTS_HZ

90 kHz — the SCTE-35 / MPEG-2 PTS clock.