Yes, the quality depends on how FFMpeg has been configured and which codecs they are using.
We recommend these configurations for Video settings:
Requires FFMPEG, Mencoder, FLVTool2.
Params for FFMPEG:
-qscale 3 -i {source} -vcodec h264 -b 4000k -s {width}x{height} -ar 44100 {destination}
Params for Mencoder:
{source} -o {destination} -of lavf -oac mp3lame -lameopts abr:br=56 -ovc lavc -lavcopts vcodec=flv:vbitrate=800:mbd=2:mv0:trell:v4mv:cbp:last_pred=3 -vf scale={width}:{height}
Fallback Params for Mencoder:
{source} -o {destination} -of lavf -oac pcm -ovc lavc -lavcopts vcodec=flv:vbitrate=800:mbd=2:mv0:trell:v4mv:cbp:last_pred=3 -srate 22050 -ofps 24 -vf scale={width}:{height}
It work for all file formats: mp4, mov, mkv, 3gp...
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