convertendo formatos com o ffmpeg

Sintaxe
$ ffmpeg –i ‘input filename’ ‘output filename’

MOV to FLV / MOV 2 FLV / MOV para FLV
$ ffmpeg -i movie1.mov movie1.flv

Mpeg to FLV / Mpeg 2 FLV / Mpeg para FLV
$ ffmpeg -i movie1.mpeg movie1.flv

AVI to FLV / AVI 2 FLV / AVI para FLV
$ ffmpeg -i movie1.avi -s 500×500 movie1.flv

3GP to FLV / 3GP 2 FLV / 3GP para FLV
$ ffmpeg -i movie1.3gp -sameq -an movie1.flv

MPEG to 3GP / MPEG 2 3GP / MPEG para 3GP
$ ffmpeg -i movie1.mpeg -ab 8.85k -acodec libamr_wb -ac 1 -ar 16000 -vcodec h263 -s qcif movie2.3gp

FLV to MPEG / FLV 2 MPEG / FLV para MPEG
$ ffmpeg -i input.flv output.mpg

aac to mp3 / aac 2 mp3 / aac para mp3
ffmpeg -i audio1.aac -ar 22050 -ab 32 -map_meta_data audio1.mp3:audio1.aac audio1.mp3

WMV to MP3 / WMV 2 MP3 / WMV para MP3
ffmpeg -i audio1.wmv audio1.mp3

WMV to FLV / WMV 2 FLV / WMV para FLV
ffmpeg -i audio1.wmv audio1.flv

AMR to MP3 / AMR2MP3 /AMR para MP3
ffmpeg -i audio1.amr -ar 22050 audio1.mp3

aac to mp3 / aac2mp3 / aac para mp3
ffmpeg -i audio1.aac -ar 22050 -ab 32 audio1.mp3