[FFmpeg-trac] #3825(avformat:new): Wrong PTS in Ogg Vorbis file

FFmpeg trac at avcodec.org
Mon Oct 2 00:06:09 EEST 2017

#3825: Wrong PTS in Ogg Vorbis file
             Reporter:  Cigaes      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  ogg vorbis  |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |

Comment (by uklotzde):

 This bug can also be verified with one of our test files:

 1st frame: pts = 0, nb_samples = 576
 2nd frame: pts = 1024, nb_samples = 576
 3rd frame: pts = 1152, nb_samples = 128

 The new FFmpeg decoder (work-in-progress) correctly detects those
 inconsistencies caused by overlapping frames.

 Our tests for sample accurate decoding fail when decoding OGG files using

Ticket URL: <https://trac.ffmpeg.org/ticket/3825#comment:2>
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