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Add sub stream recording with adaptive quality playback (#24009)

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* add sub stream recording with adaptive quality playback

Optionally record a second, lower bitrate stream alongside the main
recording stream via a `record_sub` input role and `record.sub` config block, with its own retention windows.
Recordings rows now carry the stream type plus the media details needed to serve both streams from one manifest: video codec, audio presence, audio codec and rate, and a record-time keyframe index.

Playback resolves coverage across both streams and merges them into a single VOD sequence, falling back to a discontinuity manifest with per-clip init segments when the media signatures differ. The player exposes a quality selector, and an auto governor picks the stream from stall time, bandwidth, codec support, and the save-data hint.

* fix tests and i18n
This commit is contained in:
Josh Hawkins
2026-09-12 07:30:04 -06:00
committed by Nicolas Mowen
parent f7c5500ea8
commit 1498231eb9
68 changed files with 6794 additions and 602 deletions
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web/src/utils/videoUtil.ts
+7 -4
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@@ -61,15 +61,18 @@ export function calculateSeekPosition(
return false;
}
// playlist duration exceeds wall length when the clip carries
// keyframe back-snap lead-in
const wallLength = segment.end_time - segment.start_time;
const leadIn = Math.max(0, segment.duration - wallLength);
if (segment.end_time < timestamp) {
// Add the full duration of this segment
seekSeconds += segment.end_time - segment.start_time;
seekSeconds += segment.duration;
return true;
}
// We're in this segment - calculate position within it
seekSeconds +=
segment.end_time - segment.start_time - (segment.end_time - timestamp);
seekSeconds += leadIn + (timestamp - segment.start_time);
return true;
});