[Bug 797206] There are duplicate frames when cutting and further gluing adjacent segments

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=797206

--- Comment #5 from Thibault Saunier <tsaunier at gnome.org> ---
(In reply to Oleg from comment #2)
> I found another video with a similar problem. Source video codec format is
> "video/mpeg" (mpegversion: 4)
> 
> source file: "Matrix_Reloaded_Trailer_XviD_AAC_11sub_640x346.mkv"
> result file: "Matrix_Reloaded_Trailer_XviD_AAC_11sub_640x346.mkv_out.mkv"
> 
> Attachments (~25 Mb):
> https://yadi.sk/d/v6hRV3g4MTFvCQ
> 
> I use next command file (under windows):
> 
> set file=Matrix_Reloaded_Trailer_XviD_AAC_11sub_640x346.mkv
> ges-launch-1.0 
>  +clip %file% inpoint=70 duration=5^
>  +clip %file% inpoint=75 duration=5^
>  -o %file%_out.mkv^
>  -f video/x-matroska:video/x-h264:audio/mpeg
> 
> ---
> I want to use file with codec `video/x-vp6-flash` in my program.
> How can I use GES in my program with fast and accurate editing with this and
> others video formats ?
> Do I need to use proxy files, as Pitivi does (i.e. transcode the original
> video into the MJPEG codec format before editing)?

Seeking on this file is broken (for some reason we start decoding before a
keyframe and first frames are broken)

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