[Bug 659489] h264parse: Calculate PTS from DTS (and vice-versa)

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=659489
  GStreamer | gst-plugins-bad | git

Matej Knopp <matej.knopp> changed:

           What    |Removed                     |Added
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                 CC|                            |matej.knopp at gmail.com

--- Comment #42 from Matej Knopp <matej.knopp at gmail.com> 2014-11-23 00:45:52 UTC ---
I noticed that the timestamp calculation code depends on num_units_in_tick and
time_scale, but what about files that don't have VUI or don't have the
framerate specified? it's not mandatory (or even guaranteed to be right).

With encoders the timestamp delta (PTS - DTS) seem to depend on b-pyramid
level. I.e. when b-pyramid is 0, DTS are one frame behind PTS; with b-pyramid
1, DTS are two frames behind DTS. I have also noticed certain muxers do that.
Could that be done here?

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