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[Bug 509851] Re: timeline playback audio out of sync on high definition mp4 file

 

Using Karmic on a pentium 4 laptop with openshot installed via the ppa
and mlt 0.4.10 installed through the kdenlive ppa.

Tried the clip using melt (mlt 0.4.10) - can confirm no audio sync
issues.

Audio was slightly glitchy when playing through melt.  Definitely worse
with openshot.  But mlt 0.4.10 & openshot 1.0 is much much better that
mlt 0.4.4 and openshot 1.0.

Audio and video was excellent using VLC.

Audio and video was completely out of sync using ffplay - but I've yet
to find a video that ffplay plays correctly anyway.

-- 
timeline playback audio out of sync on high definition mp4 file
https://bugs.launchpad.net/bugs/509851
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Status in OpenShot Video Editor: New

Bug description:
Similar to #509466, but have only a single high definition mp4 file on the time line and the audio gets progressively more out of sync as it plays.  Playback of the video in Totum has good a/v sync even after seeking during playback.

You can download the video here:
http://www.nasa.gov/mp4/312373main_nasa360-0107-hi.mp4

I thought cutting the clips of our lab from the show would be a good test for the kind of things I usually do with a Video editor for work -- produce short clips from larger sources to use in presentations.  Currently I usually  use Sony Vegas Movie Studio 7 or Premier Elements 2 depending on the original formats on my XP notebook to do this


I'm using Ubuntu 9.10 with all updates current as of 3PM CST 19Jan2010
OpenShot version 1.0.0 installed via the PPA.





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