for source in *.mkv ;
do
  nohup mplayer -nosound -benchmark -sws 9 -vf dsize=800:480:0,scale=800:480 -vo yuv4mpeg:file=v.y "$source" &
  x264 --demuxer y4m --crf 19 --tune animation --preset veryfast --profile baseline --level 30 --vbv-bufsize 10000 --vbv-maxrate 10000 --threads auto --output output.264 v.y 2>x264.log
  nohup mplayer -nocorrect-pts -novideo -benchmark -vo null -vc null -ao pcm:file=>(./neroAacEnc -ignorelength -lc -q 0.4 -if - -of audio.mp4 2>nero.log) "$source" &
  nohup MP4Box -fps 23.976 -add output.264 -add audio.mp4 -par 1=1 "$source.mp4" &
done