4 echo "Usage: [vcodec=s] [vbitrate=n] [vscale=s] [aid=n] [acodec=s] [abitrate=n] [ascale=s] [pass=n] $0 input.avi [-ffmpeg_options]"
8 if [ -z "$vcodec" ]; then
14 if [ -z "$vbitrate" ]; then
20 if [ -n "$vscale" ]; then
24 if [ -z "$acodec" ]; then
30 if [ -z "$abitrate" ]; then
36 if [ -z "$pass" ]; then
45 if [ "$pass" -eq 1 ]; then
46 exec ffmpeg -i "$input" -f avi -c:v "$vcodec" -b:v "$vbitrate" -g 300 -bf 2 -c:a "$acodec" -b:a "$abitrate" "$@" output.avi
48 elif [ "$pass" -eq 2 ]; then
49 ffmpeg -pass 1 -i "$input" -f avi -c:v "$vcodec" -b:v "$vbitrate" -g 300 -bf 2 -an -f rawvideo -y /dev/null "$@" &&
50 exec ffmpeg -pass 2 -i "$input" -f avi -c:v "$vcodec" -b:v "$vbitrate" -g 300 -bf 2 -c:a "$acodec" -b:a "$abitrate" "$@" output.avi
53 echo "Can only do 1 or 2 passes." >&2