[Bug 675132] tsdemux: implement proper seeking with binary search and keyframe detection

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=675132
  GStreamer | gst-plugins-bad | git

Mathieu Duponchelle <mathieu.duponchelle> changed:

           What    |Removed                     |Added
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 Attachment #272581|0                           |1
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--- Comment #28 from Mathieu Duponchelle <mathieu.duponchelle at epitech.eu> 2014-04-02 02:35:44 UTC ---
Created an attachment (id=273444)
 View: https://bugzilla.gnome.org/attachment.cgi?id=273444
 Review: https://bugzilla.gnome.org/review?bug=675132&attachment=273444

Fixes Edward's observations, will be fixed up.

I fixed Edward's observations. Regarding the h264infos they don't get reused.

I also fixed a remaining problem with my algorithm, which queued packets that
it shouldn't have queued as the rewind was still happening, in certain cases it
was leading to a buffer getting discarded.

It returns GST_FLOW_CUSTOM_ERROR for now in push_pending_data, Edward do you
think I should actually define a custom error value for that? Not too sure if
it is needed.

To test the patch, validate is a good option, I use such command lines :

gst-validate-1.0 filesrc location= /home/meh/Downloads/GH1_00094_1920x1280.MTS
! tsdemux ! h264parse ! avdec_h264 ! xvimagesink --set-scenario
scrub_forward_seeking to assert that the behaviour is correct.

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