Bug 366242 - mxf files are randomly incorrectly seeking
Summary: mxf files are randomly incorrectly seeking
Status: RESOLVED UPSTREAM
Alias: None
Product: kdenlive
Classification: Applications
Component: Video Display & Export (show other bugs)
Version: 16.04.0
Platform: Ubuntu Linux
: NOR normal
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-07-29 13:02 UTC by aslanex
Modified: 2016-07-31 19:43 UTC (History)
1 user (show)

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Description aslanex 2016-07-29 13:02:18 UTC 
In Kdenlive 16.07.80, when imported an .MXF clip and played, it randomly seeks. I can jump to any time of the clip, and another part is playing. Audio and video is desynchronized and when playing from the beginning, video is often freezed. It happens both when playing from project bin and from timeline.

Using MLT 6.3.0. In old Kdenlive 0.9, this didn't happen. When I convert the clip to another format, everything is ok.

Reproducible: Always
Comment 1 Wegwerf 2016-07-30 11:14:53 UTC 
Same ffmpeg across old and new Kdenlive?
Comment 2 aslanex 2016-07-30 14:53:02 UTC 
Not sure about that, but probably not, because I have updated the whole OS. Current ffmpeg version is 2.8.6-1ubuntu2. When playing the video in Totem video player or VLC, it works correctly.
Comment 3 Wegwerf 2016-07-30 14:55:05 UTC 
Does it play and seek correctly in melt?
Comment 4 aslanex 2016-07-30 15:31:29 UTC 
No, playing in melt behaves the same way as in Kdenlive.
Comment 5 Wegwerf 2016-07-30 15:33:57 UTC 
Then this is an upstream issue and you need to contact the MLT project, http://mltframework.org/. The reason is that MLT is the engine inside Kdenlive; so if melt already chokes, then Kdenlive cannot do anything about this.
Comment 6 aslanex 2016-07-31 19:43:50 UTC 
Ok, reported the bug on MLT website.