Created
October 4, 2021 13:49
-
-
Save cghiban/4d05edb460b9503bea46acdec0f8f0db to your computer and use it in GitHub Desktop.
mp4-to-dash.sh
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #!/bin/bash | |
| # can't remember where I found this.. | |
| # | |
| # THIS SCRIPT CONVERTS EVERY MP4 (IN THE CURRENT FOLDER AND SUBFOLDER) TO A MULTI-BITRATE VIDEO IN MP4-DASH | |
| # For each file "videoname.mp4" it creates a folder "dash_videoname" containing a dash manifest file "stream.mpd" and subfolders containing video segments. | |
| # Explanation: | |
| # Validation tool: | |
| # https://conformance.dashif.org/ | |
| # MDN reference: | |
| # https://developer.mozilla.org/en-US/Apps/Fundamentals/Audio_and_video_delivery/Setting_up_adaptive_streaming_media_sources | |
| # Add the following mime-types (uncommented) to .htaccess: | |
| # AddType video/mp4 m4s | |
| # AddType application/dash+xml mpd | |
| # Use type="application/dash+xml" | |
| # in html when using mp4 as fallback: | |
| # <video data-dashjs-player loop="true" > | |
| # <source src="/walking/walking.mpd" type="application/dash+xml"> | |
| # <source src="/walking/walking.mp4" type="video/mp4"> | |
| # </video> | |
| # DASH.js | |
| # https://github.com/Dash-Industry-Forum/dash.js | |
| #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 | |
| 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 22 -maxrate 5000k -bufsize 12000k -pix_fmt yuv420p -f mp4 "${f}_5000.mp4" | |
| ffmpeg -y -i "${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 3000k -bufsize 6000k -pix_fmt yuv420p -f mp4 "${f}_3000.mp4" | |
| ffmpeg -y -i "${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 1500k -bufsize 3000k -pix_fmt yuv420p -f mp4 "${f}_1500.mp4" | |
| ffmpeg -y -i "${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 "${f}_800.mp4" | |
| ffmpeg -y -i "${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 400k -bufsize 1000k -pix_fmt yuv420p -vf "scale=-2:540" -f mp4 "${f}_400.mp4" | |
| # static file for ios and old browsers, you may choose to not do this do this.. | |
| ffmpeg -y -i "${fe}" -preset slow -tune film -vsync passthrough -write_tmcd 0 -c:a aac -b:a 160k -c:v libx264 -crf 23 -maxrate 2000k -bufsize 4000k -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 | |
| ffmpeg -v quiet -i "${fe}" -vframes 1 -an -f image2 -y "${f}"/"${f}".jpg | |
| fi | |
| done |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment