video transcoding for the web

convert

#!/bin/bash

# Produces HTML5 friendly video formats
# Usage (OSX):
# brew install ffmpeg --with-libvpx --with-libvorbis --with-theora
# curl https://gist.githubusercontent.com/okjake/7d347f26b8bdc9496b67/raw/f2c91daf1ebacc3c117d8b304403f03b157f1109/gistfile1.txt > cnv.sh && chmod u+x cnv.sh
# cnv.sh /path/to/video1.mp4 /path/to/video2.mov


if [ ! $# -gt 0 ]; then
    echo "Usage: cnv.sh file1 [file2 file3 ...]"
    exit
fi

`mkdir converted`

for path in "$@"
do
    name="${path##*/}"
    ffmpeg -i $path -vcodec libx264 -pix_fmt yuv420p -profile:v baseline -preset slower -crf 18 -vf "scale=trunc(in_w/2)*2:trunc(in_h/2)*2" converted/${name%.*}.mp4 &
    ffmpeg -i $path -c:v libvpx -c:a libvorbis -pix_fmt yuv420p -quality good -b:v 2M -crf 5 converted/${name%.*}.webm &
    ffmpeg -i $path -q 5 -pix_fmt yuv420p -acodec libvorbis -vcodec libtheora converted/${name%.*}.ogv &
done