[FFmpeg-trac] #2786(avformat:reopened): last packet of TTA stream in Matroska isn't decoded correctly

[FFmpeg]

#2786: last packet of TTA stream in Matroska isn't decoded correctly
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             Reporter:  jamal       |                    Owner:
                 Type:  defect      |                   Status:  reopened
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  mkv tta     |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by mkver):

 When I remux inside.tta with MKVToolNix, the TimestampScale is by default
 choosen so small that one can represent the timestamps sample-accurately.
 In this case the md5 is correct and no decoding error exists.

 mkvmerge stores the information about the length twice in the file: Once
 in Info and once in a BlockDuration element (the last frame is written as
 BlockGroup, not as SimpleBlock). It is the duration in the Info element
 (that gets included in the extradata) that matters. The BlockDuration
 element gets exported, but it seems to be ignored by the decoder. Which is
 a shame because the duration in Info is not per-track, so one
 automatically has a problem when the file contains more than one track.

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Ticket URL: <https://trac.ffmpeg.org/ticket/2786#comment:13>
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