rawvideo
h263
mpeg4
msmpeg4v1
msmpeg4v2
msmpeg4
wmv1
wmv2
mpegvideo
h263i
rv10
mjpeg
mp2
mp3
ac3
pcm_s16le
pcm_s16be
pcm_u16le
pcm_u16be
pcm_s8
pcm_u8
pcm_alaw
pcm_mulaw