[gstreamer-bugs] [Bug 575759] Regression in framerates

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-ffmpeg | Ver: git

Edward Hervey changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bilboed at gmail.com
           Severity|normal                      |blocker
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Priority|Normal                      |High
            Summary|framerate doubled in h264   |Regression in framerates
   Target Milestone|HEAD                        |0.10.7




------- Comment #2 from Edward Hervey  2009-03-17 21:45 UTC -------
great... thanks to a last minute commit to ffmpeg by M.Niedermayer we get a
great surprise... by having a regression in framerates for mpeg2 and h264
decoding ! yay !

We need to take into account ticks_per_frame in all framerate conversions
between framerate and time_base.

The two commits changing that are as follow:

commit 68f29ac60ec3f3c33f142497337666a36288d54d
Author: michael <michael at 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b>
Date:   Thu Feb 26 23:47:32 2009 +0000

    Add ticks_per_frame, this should hopefully fix the regressions caused
    by the time_base change.


    git-svn-id: file:///var/local/repositories/ffmpeg/trunk@17630
9553f0bf-9b14-0410-a0b8-cfaf0461ba5b


commit 9689f4f468988d2b2ceb1231c3637c091920307d
Author: michael <michael at 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b>
Date:   Sat Feb 28 20:58:07 2009 +0000

    Adjust time_base exactly when changing ticks_per_frame to 2 this is safer
    and for some raw h264 we managed to change the timebase twice before.


    git-svn-id: file:///var/local/repositories/ffmpeg/trunk@17669
9553f0bf-9b14-0410-a0b8-cfaf0461ba5b


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