[FFmpeg-trac] #2516(undetermined:new): pgssub produce warnings and are blinking
FFmpeg
trac at avcodec.org
Thu Jul 17 20:24:52 CEST 2014
#2516: pgssub produce warnings and are blinking
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Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: important | Component:
Version: git-master | undetermined
Keywords: pgssub | Resolution:
regression videolan | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by JohnAStebbins):
Has anyone confirmed that kagero_cut.ts has a *valid* PGS stream. I just
took a closer look and it is violating the PGS spec or at least abusing it
horribly. The spec states that the presentation time for a PGS sub is the
PTS of the PES containing the presentation segment. The spec also states
that only one presentation segment may be active at any point in time.
This stream has multiple presentation segments that have the same PTS.
The fix that was committed for this appears very wrong to me, though it
might be working around problems created by this broken stream.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/2516#comment:10>
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