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New Dateranges in HLS Delta Update not parsed #7461

@itsalexjones

Description

@itsalexjones

What version of Hls.js are you using?

v1.6.9

What browser (including version) are you using?

Firefox 136.0.1 (aarch64)

What OS (including version) are you using?

MacOS 15.6 (24G84)

Test stream

https://e8f9514266214807925c660f3b60359a.mediatailor.eu-west-1.amazonaws.com/v1/master/6f4ca44fb2a3ae1090425884cba73e2a824f9228/Test/capital/capital_delta.isml/audio/master.m3u8

Configuration

{
  debug: false,
  enableWorker: false,
  backBufferLength: 90,
  liveDurationInfinity: true,
  startFragPrefetch: true,
  lowLatencyMode: false,
  cmcd: {
    useHeaders: true
  }
}

Additional player setup steps

No response

Checklist

Steps to reproduce

  1. Play the included stream.
  2. Attach to Hls.Events.LEVEL_UPDATED
  3. wait for a new Daterange to appear in the playlist.
  4. Inspect data.details.dateRanges

Expected behaviour

LevelDetails.dateRanges contains a map of dateranges

What actually happened?

LevelDetails.dateRanges is empty

Console output

log] > [stream-controller]: Loading main sn: 292513545 of level 2 (frag:[4359.161-4366.841]) cc: 8 [292512600-292513545], target: 4359.161 base-stream-controller.ts:956:9
[log] > [stream-controller]: IDLE->FRAG_LOADING base-stream-controller.ts:2173:11
Object { PTSKnown: true, alignedSliding: true, averagetargetduration: 8.969809725158562, endCC: 8, endSN: 292513545, fragments: (946) […], fragmentHint: undefined, partList: null, dateRanges: {…}, dateRangeTagCount: 1, … }
HlsScte35Player.svelte:40:10
[log] > [stream-controller]: FRAG_LOADING->PARSING base-stream-controller.ts:2173:11
[log] > [stream-controller]: Loaded main sn: 292513545 of level 2 base-stream-controller.ts:529:15
[log] > [transmuxer.ts]: Flushed main sn: 292513545 of level 2 transmuxer.ts:292:16
[log] > [stream-controller]: PARSING->PARSED base-stream-controller.ts:2173:11
[log] > [stream-controller]: Parsed main sn: 292513545 of level 2 (frag:[4359.161-4366.841]) base-stream-controller.ts:2120:9
[log] > [stream-controller]: Buffered main sn: 292513545 of level 2 (frag:[4359.161-4366.841] > buffer:[4282.361-4366.841]) base-stream-controller.ts:758:9
[log] > [stream-controller]: PARSED->IDLE base-stream-controller.ts:2173:11
[log] > [level-controller]: Loading level index 2 age 7.1 https://e8f9514266214807925c660f3b60359a.mediatailor.eu-west-1.amazonaws.com/v1/manifest/6f4ca44fb2a3ae1090425884cba73e2a824f9228/Test/ecf7319b-621d-4f9d-85a4-5c31d55cbd1d/3.m3u8?_HLS_skip=v2 level-controller.ts:673:9
[log] > [level-controller]: live playlist 2 REFRESHED 292513546--1 base-playlist-controller.ts:216:11
[log] > [level-controller]: reload live playlist 214000bps in 7142 ms base-playlist-controller.ts:346:9
[log] > [stream-controller]: Level 2 loaded [292512600,292513546][part-292513546--1], cc [0, 8] duration:4374.521175319036 stream-controller.ts:671:9
[log] > [buffer-controller]: MediaSource duration is set to Infinity. Setting seekable range to 2.3714753538683908e-7-4374.521175556183. buffer-controller.ts:1340:11
Object { PTSKnown: true, alignedSliding: true, averagetargetduration: 8.969841605068638, endCC: 8, endSN: 292513546, fragments: (947) […], fragmentHint: undefined, partList: null, dateRanges: {}, dateRangeTagCount: 0, … }
HlsScte35Player.svelte:40:10
Updated SCTE events (delta): 50 total events, 0 in current playlist HlsScte35Player.svelte:187:11
[log] > [stream-controller]: Loading main sn: 292513546 of level 2 (frag:[4366.841-4374.521]) cc: 8 [292512600-292513546], target: 4366.841 base-stream-controller.ts:956:9
[log] > [stream-controller]: IDLE->FRAG_LOADING base-stream-controller.ts:2173:11
Object { PTSKnown: true, alignedSliding: true, averagetargetduration: 8.969841605068638, endCC: 8, endSN: 292513546, fragments: (947) […], fragmentHint: undefined, partList: null, dateRanges: {}, dateRangeTagCount: 0, … }
HlsScte35Player.svelte:40:10
[log] > [stream-controller]: FRAG_LOADING->PARSING base-stream-controller.ts:2173:11
[log] > [stream-controller]: Loaded main sn: 292513546 of level 2 base-stream-controller.ts:529:15
[log] > [transmuxer.ts]: Flushed main sn: 292513546 of level 2 transmuxer.ts:292:16
[log] > [stream-controller]: PARSING->PARSED base-stream-controller.ts:2173:11
[log] > [stream-controller]: Parsed main sn: 292513546 of level 2 (frag:[4366.841-4374.521]) base-stream-controller.ts:2120:9
[log] > [stream-controller]: Buffered main sn: 292513546 of level 2 (frag:[4366.841-4374.521] > buffer:[4282.361-4374.521]) base-stream-controller.ts:758:9
[log] > [stream-controller]: PARSED->IDLE base-stream-controller.ts:2173:11
[log] > [level-controller]: Loading level index 2 age 7.1 https://e8f9514266214807925c660f3b60359a.mediatailor.eu-west-1.amazonaws.com/v1/manifest/6f4ca44fb2a3ae1090425884cba73e2a824f9228/Test/ecf7319b-621d-4f9d-85a4-5c31d55cbd1d/3.m3u8?_HLS_skip=v2 level-controller.ts:673:9
[log] > [level-controller]: live playlist 2 REFRESHED 292513548--1 base-playlist-controller.ts:216:11
[log] > [level-controller]: reload live playlist 214000bps in 7196 ms base-playlist-controller.ts:346:9

Chrome media internals output

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BugConfirmedBug report confirmed or reproduced.RegressionA bug introduced in a recent release

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