Opened 18 years ago
Last modified 18 years ago
#477 new defect
decoding vbr mp3 in avi with libmad causes A/V desync
| Reported by: | Owned by: | ||
|---|---|---|---|
| Priority: | normal | Component: | demuxer |
| Version: | HEAD | Severity: | normal |
| Keywords: | Cc: | ||
| Blocked By: | Blocking: | ||
| Reproduced by developer: | no | Analyzed by developer: | no |
Description
Usually I use libmad for decoding mpeg audio with mplayer (-afm=libmad).
I just encode some movie with mencoder 1.0pre7-3.4.2 with following options:
-ovc xvid -xvidencopts pass=2:bitrate=1000:max_key_interval=40 -oac mp3lame -
lameopts vbr=2:q=5:aq=2
Then I try to play just encoded movie with:
mplayer -afm libmad movie.avi
And I have desynced A/V streams. While I don't use libmad, let mplayer use it's
default mp3lib for decoding audio, then A/V streams is synced normally.
mplayer -identify movie.avi, gives following info:
ID_DEMUXER=avi
ID_VIDEO_FORMAT=XVID
ID_VIDEO_BITRATE=1113232
ID_VIDEO_WIDTH=720
ID_VIDEO_HEIGHT=576
ID_VIDEO_FPS=25.000
ID_VIDEO_ASPECT=1.3333
ID_AUDIO_CODEC=mp3
ID_AUDIO_FORMAT=85
ID_AUDIO_BITRATE=32000
ID_AUDIO_RATE=48000
ID_AUDIO_NCH=2
ID_LENGTH=672.48
P.S. Sorry for my bad english.
I use MPlayer dev-CVS-060407-05:10-3.3.5 for playing movie.