Hello all,

Well, I want to share a easy way to convert your AVI's to 3GP videos with ffmpeg.

ffmpeg -i input.avi -vcodec h263 -s 176x144 -r 15 -acodec libamr_nb -ar 8000 -ac 1 -ab 12.2k -y output.3gp

Be sure you have h263 video codec and libamr_nb audio codec. Most linux distros does not have libarm_nb builtin because patents, but you can download and compile ffmpeg by hand. I use this configure comand (you must have ffmpeg sources).

configure --prefix=/usr --enable-shared --libdir=/usr/lib --enable-liba52 --enable-pp --enable-gpl --enable-pthreads --enable-libnut --enable-x11grab --enable-dirac --enable-libmp3lame --enable-libfaad --enable-libfaac --enable-x264 --enable-xvid --enable-libamr_nb --enable-libamr-wb --enable-xvid

Hope this may help others. Dont ask where is ffmpeg or codec, I dont know, my linux distro (mandriva 2008.0) has it.