FFMPEG - Adding Audio to Video Not Working Correctly

[Endemoniada]

EDIT: I fixed it, I'm a happy camper

Hi guys,

I'm creating a movie from images and trying to add audio. The movie comes out perfectly but when I add audio it's not only way out of sync but the movie comes out longer than it should be.

Here is the setup:

300 bitmaps at 30 fps make a 10 sec video perfectly
a .wav file that's exactly 10 secs at sample rate 44100 with 2 channels and 16-bit (standard CD PCM)

When I add in the audio the movie becomes 12 secs and the sound events occur much too early.

Here is the code:

// this works great:
ffmpeg -r 30 -i frame_%d.bmp -vcodec rawvideo -y movie.avi

// trying to add audio:
ffmpeg -r 30 -i frame_%d.bmp -i audio.wav -vcodec rawvideo -acodec copy -y movie.avi

This is killing me, please help. Thank you.

[Baldrick]

You could try mux the audio after

ffmpeg -i movie.avi -i audio.wav -vcodec copy -acodec copy newmovie.avi

[Baldrick]

I see you solved it.....it would would be good if you told how also. It might help others who searches for same problem.

[Selur]

untested:

ffmpeg -r 30 -i frame_%d.bmp -i audio.wav -map 0:0 -map 1:1 -c:v:0 rawvideo -c:a:1 copy -y movie.avi