[Ffmpeg-devel] audio stream out of sync (to slow)

Walter Hofstetter walter.hofstetter
Fri Oct 13 16:56:13 CEST 2006

I'm useing nuvexport to export recordings from my mythtv box to an ipod 
Unfortunately the audio takes about twice as long as the video stream.

This is not related to the ipod encoding, I tried divix as well and have 
the same issue.

Any idea how to track this down?

Regards, Walter

These are the comands used:

system call:
mkdir -m 0755 /tmp/fifodir_15890/

/bin/nice -n19 /usr/bin/mythtranscode --showprogress -p autodetect -c 3 
-s 2006-10-13-15-16-57 -f "/tmp/fifodir_15890/" 2>&1

/bin/nice -n19 ffmpeg -y -f s16le -i /tmp/fifodir_15890/audout -f 
rawvideo -pix_fmt yuv420p -s 720x576 -aspect 1.33333333333333 -r 25.000 
-i /tmp/fifodir_15890/vidout -aspect 1.33333333333333 -r 25 -croptop    
12 -cropright 14 -cropbottom 12 -cropleft  14 -s 320x240  -vcodec mpeg4 
-bit_rate '384' -title 'Sturm der Liebe' -flags +4mv+trell+loop -aic 1 
-mbd 1 -cmp 2 -subcmp 2 -acodec aac -ar 48000 -async 1 -ab 64 
'/root/Sturm der Liebe.3.mp4' 2>&1

More information about the ffmpeg-devel mailing list