script.sh

ffmpeg -i $1 -vn -acodec libvorbis -ab 128k -dash 1 $2/audio.webm

ffmpeg -i $1 -c:v libvpx-vp9 -keyint_min 150 \
-g 150 -tile-columns 4 -frame-parallel 1  -f webm -dash 1 \
-an -vf scale=160:190   -b:v 250k   -dash 1 $2/video_160x90_250k.webm \
-an -vf scale=320:180   -b:v 500k   -dash 1 $2/video_320x180_500k.webm \
-an -vf scale=640:360   -b:v 750k   -dash 1 $2/video_640x360_750k.webm \
-an -vf scale=640:360   -b:v 1000k  -dash 1 $2/video_640x360_1000k.webm \
-an -vf scale=1280:720  -b:v 1500k  -dash 1 $2/video_1280x720_1500k.webm \
-an -vf scale=1920:1080 -b:v 5300k  -dash 1 $2/video_1920x1080_5300k.webm

pushd $2

ffmpeg \
  -f webm_dash_manifest -i video_160x90_250k.webm \
  -f webm_dash_manifest -i video_320x180_500k.webm \
  -f webm_dash_manifest -i video_640x360_750k.webm \
  -f webm_dash_manifest -i video_1280x720_1500k.webm \
  -f webm_dash_manifest -i video_1920x1080_5300k.webm \
  -f webm_dash_manifest -i audio.webm \
  -c copy \
  -map 0 -map 1 -map 2 -map 3 -map 4 -map 5 \
  -f webm_dash_manifest \
  -adaptation_sets "id=0,streams=0,1,2,3,4 id=1,streams=5" \
  my_video_manifest.mpd

popd