[gstreamer-bugs] [Bug 532690] New: theora keyframe problem

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-base | Ver: 0.10.19
           Summary: theora keyframe problem
           Product: GStreamer
           Version: 0.10.19
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: mammique at lamenagerie.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Hello,

when i try to mux theora frames into an ogg container it seems that keyframe
information is lost resulting in an almost unplayable file. This problem has
been experienced compiling gst-plugins-base-0.10.19.tar.gz or using Ubuntu
Hardy's package gstreamer0.10-plugins-base Version: 0.10.18-3. But no problem
compiling gst-plugins-base-0.10.14.tar.gz or or using Ubuntu Gutsy's package
gstreamer0.10-plugins-base Version: 0.10.14-X.

Here are two buggy (with 0.10.19/0.10.18) gst-launch commands:

gst-launch-0.10 filesrc location=in.mkv ! matroskademux name=demux
demux.video_00 ! queue ! theoraparse ! mux. demux.audio_00 ! queue !
vorbisparse ! mux. oggmux name=mux ! filesink location=out.ogg
(in.mkv contains one Theora and one Vorbis stream)

gst-launch filesrc location==video.ogg ! oggdemux ! theoraparse ! oggmux
name=mux ! filesink location=mux.ogg filesrc location=audio.ogg ! oggdemux !
vorbisparse !  mux.
(video.ogg contains one Theora stream, audio.ogg contains one vorbis stream)

Here is the repeated warning i got:

** (gst-launch-0.10:10889): CRITICAL **: make_granulepos: assertion `frame >=
keyframe' failed

I experienced this on two different computers with different configurations so
i guess it is easy to reproduce.

Regards,

Camille.


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