[Ffmpeg-devel] mpeg4 bitrate unusable?

[Cyrus A]

(This problem arose somewhere between rev 4526 and 6849. Sorry I can't 
be more specific without doing another binary search. If I get time, 
I'll repost with what I can find.)

I think MPEG-4 video encoding bitrate specification is broken. Using rev 
4526, the following command produces crystal clear video from my video 
capture card:

ffmpeg -i /dev/video0 -async 1 -y -vcodec mpeg4 -acodec mp3 -t 30 -b 
1750 -ab 192 -s 480x384 test.avi

However, after upgrading to the latest SVN, the resulting video is very 
pixelated. While recording, ffmpeg reports bitrates in the mid to lower 
hundreds, far below 1750 kbps.

Any ideas why this happens?

Cyrus

p.s. The seek/duration bug is definitely fixed. Thanks.