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http://opencast.jira.com/browse/MH-8505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=29259#comment-29259
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Adam McKenzie commented on MH-8505:
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Hi Kevin,
I think when we were talking in irc if I remember correctly it was about Adobe
Premiere having issues with the VGA feed's framerate being interpreted wrongly.
I cut 43 clips over the Christmas break for an instructor and sometimes saw
some noticeable drift between the audio and camera feed versus the VGA feed.
For myself encoding it to another format and then trimming it solved the
problem. Sorry I made this speculation back before I knew that ffmpeg actually
reported different durations (in my cases the durations would be the same but
the timing of slide changes would be off). Moving to h264 would be lovely
except in the cases where the metadata can't be written before closing the file
(say a power outtage during capture). We will have to do some testing to make
sure that we can recover these files alright.
Thanks,
Adam
> Time length discrepancy in capture files due to dropped frames
> --------------------------------------------------------------
>
> Key: MH-8505
> URL: http://opencast.jira.com/browse/MH-8505
> Project: Matterhorn Project
> Issue Type: Bug
> Components: Capture (Devices and Software)
> Affects Versions: 1.2.1
> Reporter: Kevin Chan
> Assignee: Adam McKenzie
>
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