[FFmpeg-trac] #6873(avformat:open): Crash with muxing a lot of streams in Matroska

FFmpeg trac at avcodec.org
Sun Nov 26 18:40:03 EET 2017


#6873: Crash with muxing a lot of streams in Matroska
-------------------------------------+-------------------------------------
             Reporter:  mkver        |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mkv crash    |               Blocked By:
  SIGSEGV regression                 |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by mkver):

 Replying to [comment:7 jamrial]:
 > With more than 128 streams you would probably get a crash in lines
 2182/2184 instead.
 This is not what I experienced: It's just that the TrackIDs are not
 correct: The TrackID is encoded in one byte and therefore only the 7 least
 significant bits are correct. But there is no crash (in my tests).

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Ticket URL: <https://trac.ffmpeg.org/ticket/6873#comment:8>
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