webvtt subtitles in HLS are not displayed when the PTS wraps around

[bbagland]

Issue description

Play a HLS stream where the PTS from the main video segment are wrapping around with webvtt subtitles.
bugreport.1.txt.gz
The webvtt subtitles are never displayed.

Reproduction steps

It is reproduced with the demo on the latest release 2.4.1.
it is not necessary, but it is easier if subtitles are set by default:

  DefaultTrackSelector.Parameters parameters = trackSelector.getParameters();
  parameters = parameters.withPreferredTextLanguage("heb");
  trackSelector.setParameters(parameters);

Link to test content

stream to be sent by email

Version of ExoPlayer being used

release 2.4.1 (commit 9f81485)

Device(s) and version(s) of Android being used

reproduced on Sony xperia z3 compact, as well as android tv devices.

[bbagland]

The subtitles are displayed if we call adjustTsTimestamp instead of adjustTsTimestamp instead of adjustSampleTimestamp in WebvttExtractor.java, ie:

long sampleTimeUs = firstCueTimeUs + timestampAdjuster.adjustTsTimestamp(Long.parseLong(mediaTimestampMatcher.group(1))) - vttTimestampUs;

[AquilesCanta]

A fix will be available in the next push. Thanks for reporting and your patience!

[ojw28]

This is fixed in dev-v2, and will be in r2.5.3, which will be released some time this week.

[bbagland]

Thanks.
I no longer have access to the environnent to replicate, but I will see if I can check nonetheless.