[Libav-user] Bug in mpegts reader with H.264 video?

Andrey Utkin andrey.krieger.utkin at gmail.com
Mon Sep 24 08:37:28 CEST 2012

2012/9/19 Thomas Worth <dev at rarevision.com>:
> Ok, fine. BUT, once these errors occur, if I try to seek to the
> beginning again the DTS and PTS values are ALWAYS
> -9223372036854775808. It doesn't matter how many times I flush
> buffers, or close and reopen the codec, I am stuck with never being
> able to read the correct DTS and PTS ever again for that file (unless
> I quit and restart the app)! It's like something internal to avcodec
> is botched and can't be recovered. If these decode errors are
> encountered in the middle of a loop, the DTS/PTS are still shown
> correctly until the end of the loop but once I issue the
> av_seek_frame() and flush buffers to rewind the stream, the timestamps
> are always -9223372036854775808 from that point on.
> Has anyone encountered this? Is there something else I need to do to
> restore proper DTS/PTS after a decode error?

Sounds serious. Could you please supply us with sample media file, and
simple app that reproduces the issue?
And first ensure you reproduce it with latest revision from git.

Andrey Utkin

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