# test video out.avi created with:
# ffmpeg -t 30 -i 2.avi -vcodec copy -acodec mp2 -ab 224k -ac 2 -ar 48000 -sameq -y out.avi
# tovid output
Analysis of file /work/svn/tovid/src/out.avi:
720 x 480 pixels, 23.977 fps
Duration (best guess): 00:00:30 (HH:MM:SS)
DIV3 video with mp2 audio
=========================================================
Audio stream is already compliant with PAL DVD.
No re-encoding is necessary. To force encoding, use -force
=========================================================
Target format:
720 x 576 pixels, 25.000 fps
m2v video with ac3 audio
5400 kbits/sec video, 224 kbits/sec audio
=========================================================
Using auto-detected aspect ratio 150:100 (override with -aspect)
Letterboxing vertically
Input is not 25.000 fps. Framerate will be adjusted.
Scaling picture to 720 x 512
Centering picture against a 720 x 576 black background
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Found compliant audio and dumping the stream.
This sometimes causes errors when multiplexing; add '-force' to the tovid
command line to re-encode if multiplexing fails.
Copying the existing audio stream with the following command:
nice -n 0 ffmpeg -i /work/svn/tovid/src/out.avi -vn -acodec copy /home/robert/tmp/out.avi.enc.0/audio.ac3
Processing started. Please wait...
--- Copying compliant audio stream: 1 MB written to audio.ac3