[MPlayer-users] Converting video to Nintendo 3DS

[Carl Eugen Hoyos]

Lucas Badiale <lcbadial <at> gmail.com> writes:

> ffmpeg -i revenge.mp4 -s 400x240 -aspect 2:1 -r 20 -vcodec mjpeg
> -qscale 1 -acodec adpcm_ima_wav -ac 2 VID_0001.AVI -t 10

> mencoder revenge.mp4 -o VID_0002.AVI -vf
> scale=400:-11,expand=400:240:0:0 -ofps 20 -ovc lavc -oac lavc
> -lavcopts acodec=adpcm_ima_wav:vcodec=mjpeg:aspect=2 -ffourcc MJPG
> -endpos 10

> I used the "identify" flag on mplayer on both outputs, to see the
> diference... but I couldn't find anything suspicious =/

I suspect ffmpeg -i file would have told you the fourccs are different 
which is not surprising since you did pass -ffourcc to mencoder, 
but your ffmpeg command line is missing -vtag MJPG.

Carl Eugen