[3GPP H.263 128x96 4:3 AAC mono]
params=-r 15 -b:v 64k -ac 1 -vf scale=128:96 -ar 16000 -b:a 32k -acodec libvo_aacenc -vcodec h263
extension=3gp
[3GPP H.263 176x144 16:9 crop AAC mono]
params=-r 15 -b:v 64k -ac 1 -vf scale=256:144,crop=iw-2*40 -ar 16000 -b:a 32k -acodec libvo_aacenc -vcodec h263
extension=3gp
[3GPP H.263 176x144 16:9 letterbox AAC mono]
params=-r 15 -b:v 64k -ac 1 -vf scale=176:100,pad=iw:ih+2*22:0:22 -ar 16000 -b:a 32k -acodec libvo_aacenc -vcodec h263
extension=3gp
[3GPP H.263 176x144 4:3 AAC mono]
params=-r 15 -b:v 64k -ac 1 -vf scale=176:132,pad=iw:ih+2*6:0:6 -ar 16000 -b:a 32k -acodec libvo_aacenc -vcodec h263
extension=3gp
[3GPP H.264 320x240 16:9 crop AAC stereo]
params=-r 15 -b:v 128k -vf scale=426:240,crop=iw-52-54:ih:52 -ar 22050 -b:a 64k -acodec libvo_aacenc -vcodec libx264 -coder 1 -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -me_method hex -subq 6 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -b_strategy 1 -qcomp 0.6 -qmin 0 -qmax 69 -qdiff 4 -bf 3 -refs 3 -direct-pred 1 -trellis 1 -wpredp 2 -threads 0
extension=3gp
[3GPP H.264 320x240 16:9 letterbox AAC stereo]
params=-r 15 -b:v 128k -vf scale=320:180,pad=iw:ih+2*30:0:30 -ar 22050 -b:a 64k -acodec libvo_aacenc -vcodec libx264 -coder 1 -threads 0
extension=3gp
[3GPP H.264 320x240 4:3 AAC stereo]
params=-r 15 -b:v 128k -vf scale=320:240 -ar 22050 -b:a 64k -acodec libvo_aacenc -vcodec libx264 -coder 1 -threads 0
extension=3gp