Module cmaf_util 

Shared CMAF/HLS helpers used by the job engine and the multi-GPU orchestrator: segment-boundary flushing, per-rung contribution merging, bandwidth measurement, and AV1 codec-string extraction.

Structs

RungContribution

One encoder worker’s contribution to a rung (a slice of its segments).

Functions

add_audio_sample_with_segment_flush

Add one audio sample to a CmafAudioMuxer with segment flushing on the same time grid.

add_packet_with_segment_flush

Add one encoded video packet to a CmafVideoMuxer, flushing the prior segment first when the next packet is a keyframe and the buffered duration has reached the segment target (so each segment opens on an IDR).

av1_codec_string_from_init

Parse the AV1 codec string (av01.…) from a rendition’s init segment.

keyframe_interval_for_segment

Keyframe interval (frames) for a target segment length at a frame rate.

measure_bandwidth

(average, peak) bandwidth in bits/sec across a manifest’s segments.

merge_rung_contributions

Merge several workers’ segment lists for one rung into a single ordered manifest, detecting duplicate segment numbers and internal gaps.

total_segments_for_rung

Number of CMAF segments a rung will produce (ceil division).