3763e5bc1d
This is caused when the requested "output start time" is equal to or larger than the last event time in a `Subtitle` object. This resolves the error in Issue: androidx/media#1516, but subtitles are still not renderered (probably because the timestamps aren't what we expect somewhere, but I need to investigate this part further). #cherrypick PiperOrigin-RevId: 660462720