[Bug 753090] basetransform: check the segment condition

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=753090

Myoungsun Lee <ohmygod0327 at gmail.com> changed:

           What    |Removed                     |Added
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--- Comment #4 from Myoungsun Lee <ohmygod0327 at gmail.com> ---
Created attachment 309049
  --> https://bugzilla.gnome.org/attachment.cgi?id=309049&action=edit
basetransform: check the segment condition

basetransform: check the segment condition

Problem:
In gst-validate test, mjpeg-reverse-playback-test with fakesink is failed
because gstreamer occur critical error by segment transformation function.

Critical error gst_segment_to_stream_time: assertion 'segment->format ==
format' failed

Caused:
Basetransform reset the segment values when it received flush stop event.
Before the segment is set, basetransform try to execute transformation segment.

Steps to Reproduce:
GST_VALIDATE_SCENARIO=reverse_playback GST_GL_XINITTHREADS=1 playbin
uri=file:///home/gst-validate/gst-integration-testsuites/medias/defaults/avi/bowlerhatdancer.sleepytom.SGP.mjpeg.avi
audio-sink='fakesink sync=true' video-sink='fakesink sync=true'
--set-media-info
/home/gst-validate/gst-integration-testsuites/medias/defaults/avi/bowlerhatdancer.sleepytom.SGP.mjpeg.avi.media_info

Resolution: 
Basetransform need to check the segment values before it executes
transformation segment.

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