bipbop-cenc.sh (1324B)
1 mkdir work.tmp 2 3 for r in 225w_175kbps 300_215kbps 300wp_227kbps 360w_253kbps 480_624kbps 480wp_663kbps 480_959kbps 480wp_1001kbps 4 do 5 for k in 1 2 6 do 7 # Encrypt bipbop_<res>.mp4 with the keys specified in this file, 8 # and output to |bipbop_<res>-cenc-{video,audio}.mp4| 9 MP4Box -crypt bipbop-cenc-audio-key${k}.xml -rem 1 -out work.tmp/bipbop_${r}-cenc-audio-key${k}.mp4 bipbop_${r}.mp4 10 MP4Box -crypt bipbop-cenc-video-key${k}.xml -rem 2 -out work.tmp/bipbop_${r}-cenc-video-key${k}.mp4 bipbop_${r}.mp4 11 12 # Fragment |bipbop_<res>-cenc-*.mp4| into 500ms segments: 13 MP4Box -dash 500 -rap -segment-name work.tmp/bipbop_${r}-cenc-audio-key${k}- -subsegs-per-sidx 5 work.tmp/bipbop_${r}-cenc-audio-key${k}.mp4 14 MP4Box -dash 500 -rap -segment-name work.tmp/bipbop_${r}-cenc-video-key${k}- -subsegs-per-sidx 5 work.tmp/bipbop_${r}-cenc-video-key${k}.mp4 15 16 # The above command will generate a set of fragments |bipbop_<res>-cenc-{video,audio}-*.m4s 17 # and |bipbop_<res>-cenc-{video,audio}-init.mp4| containing just the init segment. 18 19 # Remove unneeded mpd files. 20 rm bipbop_${r}-cenc-{audio,video}-key${k}_dash.mpd 21 done 22 done 23 24 # Only keep the first 4 audio & 2 video segments: 25 cp work.tmp/*-init[.]mp4 ./ 26 cp work.tmp/*audio*-[1234][.]m4s ./ 27 cp work.tmp/*video*-[12][.]m4s ./ 28 29 rm -Rf work.tmp