[Mplayer-dev-eng] A-V resync problems again

[Nick Kurshev]

Hi, Felix Buenemann!

On 2001-06-03 12:29:39 you wrote:

>> >> >> I just have found SUBJ. I watched the 3 hours of DivX film and at the
>> >> >> 15 minutes until end video was freezed but sound continued playing
>> >> >> and as result well known 15 sec resync when audio is outdistance of
>> >> >> video stream. It seems that resync is accumulated during film and
>> >> >> activate at end. I don't know why this is occured, but may be would
>> >> >> be better to use 64-bit integer type (long long int) for code which
>> >> >> perform
>> >> >> synchronization or something likewise?
>> >> >
>> >> >Video usually freezes with divx on defect frames, dunno if mplayer
>> >> > should usually hanle it but windooze mplayer stops video then and
>> >> > sound goes on, you have to skip forward to get video again. (Haven't
>> >> > treid playing freezeframe divx with mplayer yet...)
>> >>
>> >> Of course, to continue watching I skip this frame and get unrecoverable
>> >> A-V resync. I.e. after prexsing <- and -> nothing was occured and
>> >> streams were resync even I skip back on point where were no problems.
>> >> Btw during watching this film I've found also several such frames but
>> >> they only caused slowing down of playback but not stop video stream and
>> >> there was not resync. But possible that mplayer handle such situation
>> >> and correctly avoid them ?
>> >
>> >Please check DOCS/BUGS section bout A/V sync, starting line 42, if it
>> > doesn't help you should upload enough of the file to thot ftp so we can
>> > reproduce the error.
>>
>> At first from DOCS/BUGS:
>> #- your soundcard doesn't support 48Khz playback
>> #  Workaround: buy a better soundcard...
>> #             or try to decrease fps by 10% (use -fps 27 for a 30fps movie)
>> I have SB16 which can play only 44100 but I've watched almost film entire
>> (first 2 hours 45 min) without any problems and without a-v resync. Arpi
>> probably fixed this by syncing each frame. Second:
>> I would be glad to upload "bad" piece of avi but not entire avi - because
>> avi have size about 700Mb but "bug" is occured withing last 15min of film.
>> How I can cut out "bad" piece? I tried cut out one avi (I've cut only first
>> megabyte of file) and mplayer says that this avi have no indexes and seek
>> not possible.
>You can split it under windooze with virtual dub (virtualdub.sf.net)
IMHO this URL should be in DOCS if it lonely way to do that

Best regards! Nick (2001-06-03 19:51:58)


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