ffmpeg: getting quality loss of avi when adding audio back in

[vidgem]

Hello, I have a silent avi that I want to add an audio track to.

I am using ffmpeg, and I have tried various commands, but with each one I get quality degradation of the video. and sometimes the frame rate changes. Really weird.

The original avi is 29.97 fps.

the command I am using is ffmpeg -i someaudio.mp3 -i somevideo.avi -r 29.97 -b 16384k somecombined.mov (mp4, avi, whatever)

the final file comes out and says it is 29.97 thru the quicktime info bar, but when I play it is in half motion, and there is definite loss of quality in the video. The sound is also half motion.

Has anyone had any luck in embedding audio into a movie using ffmpeg successfully?

[bat999]

Has anyone had any luck in embedding audio into a movie using ffmpeg successfully?

Yup
Try a command like this:-

ffmpeg -i somevideo.avi -i someaudio.mp3 -vcodec copy -acodec copy somecombined.mov

[vidgem]

cool, thank you bat999, that seems to work. am going to test with some others tonight.