[mythtv-users] watching mkv movies causes pausing problems

Marc Williams marcjw53 at gmail.com
Mon Nov 28 21:04:50 UTC 2011

On 11/28/2011 12:04 PM, Raymond Wagner wrote:
> I ran my copy of Adjustment Bureau through mkvmerge with your suggestion
> and then tested it.  It cured the problem of pauses resuming at a
> different location in the movie.  That's terrific!  However, the "Time
> Remaining" barometer still showed incorrect time remaining.  For me,
> that's relatively minor.  Thanks for the tip!
> Just a sanity check with Taylor Ralph to make sure I'm not telling you
> to do something horribly bad.
> <taylorr>  wagnerrp: if they are happy with changing the FPS to 23.976
> then that's fine... however, what is happening is that the AV-sync code
> is constantly making adjustments to speed up frames at times.
> <taylorr>  basically, 29.97 fps + frame repeats = 23.976 fps if you
> change it to 23.976 + frame repeats then you are technically playing the
> video back too slow
> <taylorr>  plus you aren't properly displaying each frame for the proper
> interval
> <taylorr>  with all that said, it's probably not very noticeable for most
> people
> In other words, the above solution is not the correct solution, but is
> one that makes the current player work... mostly.  Seeking will work
> properly, but playback might have a bit of visible jitter.  If it works
> well enough now, it's a quick change amounting to little more than a
> file copy, and more importantly can be reverted just as easily.
> However, if the files don't work properly elsewhere, or in later,
> improved versions of the internal player, remember that you made this
> change.
Thanks for the heads up and the extra checking.  I didn't notice 
anything wrong or different with the video at all.  I'll now have to 
weigh the benefits and risks of performing the same modification to the 
rest of my mkv's.

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