mp4box-dash-generator.sh

#!/bin/bash

#generate dash files
#outputs :
#   video_480p_track2_dashinit.mp4
#   video_480p_track2_dashinit.mp4
#   video_720p_track2_dashinit.mp4
#   video_720p_track1_dashinit.mp4
#   video_1080p_track2_dashinit.mp4
#   video_1080p_track1_dashinit.mp4
#   video.mpd

#track1 is only video without audio
#track2 is audio of video
#mpd  store the all of dashinit files for this video in a relational database format.
dash_output_directory=$1
input_directory=$2

inp_1080="$input_directory/video_1080p.mp4"
inp_720="$input_directory/video_720p.mp4"
inp_480="$input_directory/video_480p.mp4"

MP4Box -dash 1000 -rap -frag-rap -profile onDemand -out $dash_output_directory $inp_1080#video $inp_720#video $inp_480#video $inp_1080#audio $inp_720#audio $inp_480#audio