Choppy Video On Dvd Playback
Posted 09 April 2012 - 10:39 PM
Has anyone solved the long-standing choppy video problem on Lion?
I had everything working fine under SL, but since Lion I have had nothing but trouble with video, and DVDs/mpeg2 especially.
QuicktimeX hates mpeg2, freezes on scrubbing and gives choppy playback, as though it is getting audio and video out of sync and having to resync. Quicktime 7 Pro, on the other hand, plays mpeg2 just fine. (QTX is ok with mp4/h264).
I had Apple Support on to this and we ascertained that QTX under Lion is much more fussy about its mpeg2s than QTX under SL. In particular it was picky about what application had created the mpeg2s and its compliance to the standard. My worst offenders are created by exporting out of EyeTV. Other mpegs edited using VideoRedo for PC in my W7 VM are better. I'm guessing that EyeTV is making low-compliance videos.
And, it seems, anything that uses QT to do its video playback has the same problem - I presume that''s how DVD player works and it is having trouble with mpeg2 videos out of EyeTV burned as dvd-video discs using Toast 10. Presumably it is using QTX for decoding and display and hence the same problem. My assumption is that Toast is not the problem - it is the playback component which is.
So my guess is that QTX mpeg2 codec is primary cuprit, I just can't fix it.any thoughts gratefully received.
Posted 10 April 2012 - 06:32 AM
What I'm suspicious of is the possibility of another audio or video codec that may be causing a conflict. Have you removed non-Apple codecs from your QuickTime Libraries to see if that makes a difference? If you have Perian have you updated to its latest version?
Posted 17 August 2012 - 07:30 AM
Hope this helps someone.
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