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- MYDIR=$(dirname $(readlink -f ${BASH_SOURCE[0]}))
- SAVEDIR=$(pwd)
- # Check programs
- if [ -z "$(which ffmpeg)" ]; then
- echo "Error: ffmpeg is not installed"
- exit 1
- fi
- if [ -z "$(which MP4Box)" ]; then
- echo "Error: MP4Box is not installed"
- exit 1
- fi
- cd "$MYDIR"
- TARGET_FILES=$(find ./ -maxdepth 1 -type f ( -name "*.mov" -or -name "*.mp4" ))
- for f in $TARGET_FILES
- do
- fe=$(basename "$f") # fullname of the file
- f="${fe%.*}" # name without extension
- if [ ! -d "${f}" ]; then #if directory does not exist, convert
- echo "Converting "$f" to multi-bitrate video in MPEG-DASH"
- mkdir "${f}"
- ffmpeg -y -i "${fe}" -c:a aac -b:a 192k -vn "${f}_audio.m4a"
- ffmpeg -y -i "${fe}" -preset slow -tune film -vsync passthrough -write_tmcd 0 -an -c:v libx264 -x264opts 'keyint=25:min-keyint=25:no-scenecut' -crf 23 -maxrate 800k -bufsize 2000k -pix_fmt yuv420p -vf "scale=-2:720" -f mp4 "${f}_800.mp4"
- # static file for ios and old browsers and mobile safari
- ffmpeg -y -i "${fe}" -preset slow -tune film -movflags +faststart -vsync passthrough -write_tmcd 0 -c:a aac -b:a 160k -c:v libx264 -crf 23 -maxrate 1400 -bufsize 3000k -pix_fmt yuv420p -f mp4 "${f}/${f}.mp4"
- rm -f ffmpeg*log*
- # if audio stream does not exist, ignore it
- if [ -e "${f}_audio.m4a" ]; then
- MP4Box -dash-strict 2000 -rap -frag-rap -bs-switching no -profile "dashavc264:live" "${f}_5000.mp4" "${f}_3000.mp4" "${f}_1500.mp4" "${f}_800.mp4" "${f}_400.mp4" "${f}_audio.m4a" -out "${f}/${f}.mpd"
- rm "${f}_5000.mp4" "${f}_3000.mp4" "${f}_1500.mp4" "${f}_800.mp4" "${f}_400.mp4" "${f}_audio.m4a"
- else
- MP4Box -dash-strict 2000 -rap -frag-rap -bs-switching no -profile "dashavc264:live" "${f}_5000.mp4" "${f}_3000.mp4" "${f}_1500.mp4" "${f}_800.mp4" "${f}_400.mp4" -out "${f}/${f}.mpd"
- rm "${f}_5000.mp4" "${f}_3000.mp4" "${f}_1500.mp4" "${f}_800.mp4" "${f}_400.mp4"
- fi
- # create a jpg for poster. Use imagemagick or just save the frame directly from ffmpeg is you don't have cjpeg installed.
- ffmpeg -i "${fe}" -ss 00:00:00 -vframes 1 -qscale:v 10 -n -f image2 - | cjpeg -progressive -quality 75 -outfile "${f}"/"${f}".jpg
- fi
- done
- cd "$SAVEDIR"
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