Module ids 

WebM element IDs used by the v1 demux subset.

See facade ADR-0001 / this crate’s adr/0001. Values are the raw EBML element ID (marker bits included, per RFC 8794) — see docs/standards/registry.toml (rfc-8794-ebml, webm-container-guidelines).

Constants

AUDIO

TrackEntry\Audio.

BLOCK

BlockGroup\Block — same wire format as SimpleBlock, but the keyframe flag bit is reserved here; keyframe-ness is instead the absence of a sibling ReferenceBlock.

BLOCK_DURATION

BlockGroup\BlockDuration (in TimecodeScale ticks).

BLOCK_GROUP

Cluster\BlockGroup.

CHANNELS

Audio\Channels (default 1).

CLUSTER

Segment\Cluster — may be indefinite size.

CODEC_ID

TrackEntry\CodecID (ASCII, e.g. "V_VP9").

CODEC_PRIVATE

TrackEntry\CodecPrivate (codec-specific config: OpusHead for Opus, the VP9 uncompressed-header config for VP9, …).

CUES

Segment\Cues — seek index; informational only (this crate does no seeking itself, per sans-io — see crate-local ADR-0002).

CUE_CLUSTER_POSITION

CueTrackPositions\CueClusterPosition (byte offset from Segment’s data start).

CUE_POINT

Cues\CuePoint.

CUE_TIME

CuePoint\CueTime.

CUE_TRACK

CueTrackPositions\CueTrack.

CUE_TRACK_POSITIONS

CuePoint\CueTrackPositions.

DOC_TYPE

EBML\DocType (mux only — ASCII "webm").

DOC_TYPE_READ_VERSION

EBML\DocTypeReadVersion (mux only).

DOC_TYPE_VERSION

EBML\DocTypeVersion (mux only).

EBML_HEADER

EBML header — skipped whole in v1 demux (no DocType validation); the mux side writes a minimal, spec-valid one (adr/0003).

EBML_MAX_ID_LENGTH

EBML\EBMLMaxIDLength (mux only — always 4, matching decode_id’s limit).

EBML_MAX_SIZE_LENGTH

EBML\EBMLMaxSizeLength (mux only — always 8).

EBML_READ_VERSION

EBML\EBMLReadVersion (mux only — always 1).

EBML_VERSION

EBML\EBMLVersion (mux only — always 1).

PIXEL_HEIGHT

Video\PixelHeight.

PIXEL_WIDTH

Video\PixelWidth.

REFERENCE_BLOCK

BlockGroup\ReferenceBlock — presence (value is unused) marks the block as not a keyframe.

SAMPLING_FREQUENCY

Audio\SamplingFrequency (EBML Float; default 8000.0 Hz).

SEEK

SeekHead\Seek.

SEEK_HEAD

Segment\SeekHead — informational only (see CUES).

SEEK_ID

Seek\SeekID (the referenced element’s raw ID bytes).

SEEK_POSITION

Seek\SeekPosition (byte offset from Segment’s data start).

SEGMENT

Segment — top-level container; may be indefinite size.

SEGMENT_INFO

Segment\Info.

SIMPLE_BLOCK

Cluster\SimpleBlock.

TIMECODE

Cluster\Timecode (in TimecodeScale ticks, relative to Segment start).

TIMECODE_SCALE

Segment\Info\TimecodeScale (ns per tick; default 1_000_000).

TRACKS

Segment\Tracks.

TRACK_ENTRY

Segment\Tracks\TrackEntry.

TRACK_NUMBER

TrackEntry\TrackNumber.

TRACK_TYPE

TrackEntry\TrackType (1 = video, 2 = audio, …).

VIDEO

TrackEntry\Video.

Functions

is_descend_master

Master elements the walker descends into. Every other element ID (recognized leaf or not) is treated as opaque and skipped by its own element size.