[MEncoder-users] avi->dvd: -oac copy jerky
tomas.bazant at rozhlas.cz
Wed Dec 28 11:19:55 CET 2005
Nico Sabbi wrote:
> Tomáš Bažant wrote:
>> after three days of experimenting, i found that:
>> when converting AVI+5.1AC3 to dvd compliant MPEG2 stream with -oac
>> copy (i.e i wanted to preserve the 6ch audio track as is in the
>> original avi), the resulting mpeg2 stream is ok (also my harware
>> player plays it ok), but after authoring (dvdauthor) and burning it
>> (k3b) as Video DVD, the sam ehardware player jerks from time to tim.
>> this jerkiness becomes more and more often until it stops fully.
>> but when i use the same command line BUT change and put '-oac lavc
>> -lavcopts acodec=ac3:br=192...' instead of '-oac copy', everything's
>> fine then. it's a pity i cannot preserve 6 channels, but these two
>> would do as well.
> does your player show the same problems if you encode audio to 384 or
> higher kb/s ?
no, i even tried to encode the audio like this '-channels 6 -lavcopts
acodec=ac3:br=384' and the video stayed perfectly fluent (but the
channels got mixed up incorrectly). the problem is with '-oac copy' and
it does not work with any valid fps's - 25fps nor 24000/1001fps neither
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