https://bugs.kde.org/show_bug.cgi?id=478562

--- Comment #1 from red_Arti <jijili...@yandex.com> ---
I think I found where the problem comes from. ffmpeg gives different
timestamps.

Two "start" timestamps are different: 
0.083 - 0.015 = 0.068
0.068 is the drifted time !

I don't know why ffmpeg think start time different. 
I cut and saved those two video files by Avidmux, from same movie file.

Can we do something in Kdenlive to correct that result?

----------------------------------------------------------------------------------

video-short.mkv

`ffmpeg -i` RESULT:
Input #0, matroska,webm, from 'video-short.mkv':
Duration: 00:00:23.45, start: 0.083000  <---------------- *** look at this ***
Stream #0:0: Video: DURATION        : 00:00:23.440000000
Stream #0:1: Audio: DURATION        : 00:00:23.450000000

GOR RESULTS:  (5.715, 5.756, 12.68, 18.352)  <---------------- *** look at this
***

`ffprobe packet=pts_time,flags` RESULT:
0.083000,K_
0.250000,__
0.167000,__
0.125000,__
---------------------------------------------------------------

video-long.mkv

`ffmpeg -i` RESULT:
Input #0, matroska,webm, from 'video-long.mkv':
Duration: 00:02:48.18, start: 0.015000  <---------------- *** look at this ***
Stream #0:0: Video: DURATION        : 00:02:48.168000000
Stream #0:1: Audio: DURATION        : 00:02:48.175000000

GOR RESULTS:  (5.783, 5.824, 12.748, 18.42,  ...)  <---------------- *** look
at this ***

`ffprobe packet=pts_time,flags` RESULT:
0.084000,K_
0.250000,__
0.167000,__
0.125000,__
0.209000,__

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