Can you change your preset line to this and try again:
-r 20 -vcodec mpeg4 -vtag DX50 -s 224x176 -aspect 1.273 -b 700k -qmin 3 -qmax 5 -mbd 2 -bf 2 -aic 2 -cmp 2 -subcmp 2 -bf 0 -acodec libmp3lame -ar 44100 -ab 128k -ac 2
I simply removed “-flags +4mv+trell” because FFmpeg seems to have a problem with it. You have another issue with the frame rate but I hope FFmpeg will resolve it ifyou get it to start.
