making ffmpeg recognise mp4

Question

What should I install on ubuntu 10.04 to allow my ffmpeg convert files to MP4 ?

Answer 1

You can try installing unstripped libraries:

sudo apt-get purge ffmpeg
sudo apt-get update
sudo apt-get install libavcodec-unstripped-51 libavdevice-unstripped-52 libavformat-unstripped-52 libavutil-unstripped-49 libpostproc-unstripped-51 libswscale-unstripped-0 ffmpeg

(Suggested here)