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37 lines
1.5 KiB
37 lines
1.5 KiB
#!/bin/bash
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#HLS, Dash and fallback code from zazu.berlin 2020, Version 20200424
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VIDEO_IN=rtmp://localhost/live
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VIDEO_OUT=master
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HLS_TIME=4
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FPS=25
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GOP_SIZE=100
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PRESET_P=veryslow
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V_SIZE_1=960x540
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V_SIZE_2=416x234
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V_SIZE_3=640x360
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V_SIZE_4=768x432
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V_SIZE_5=1280x720
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V_SIZE_6=1920x1080
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# DASH
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ffmpeg -i $VIDEO_IN -y \
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-preset $PRESET_P -keyint_min $GOP_SIZE -g $GOP_SIZE -sc_threshold 0 -r $FPS -c:v libx264 -pix_fmt yuv420p \
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-map v:0 -s:0 $V_SIZE_1 -b:v:0 2M -maxrate:0 2.14M -bufsize:0 3.5M \
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-map v:0 -s:1 $V_SIZE_2 -b:v:1 145k -maxrate:1 155k -bufsize:1 220k \
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-map v:0 -s:2 $V_SIZE_3 -b:v:2 365k -maxrate:2 390k -bufsize:2 640k \
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-map v:0 -s:3 $V_SIZE_4 -b:v:3 730k -maxrate:3 781k -bufsize:3 1278k \
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-map v:0 -s:4 $V_SIZE_4 -b:v:4 1.1M -maxrate:4 1.17M -bufsize:4 2M \
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-map v:0 -s:5 $V_SIZE_5 -b:v:5 3M -maxrate:5 3.21M -bufsize:5 5.5M \
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-map v:0 -s:6 $V_SIZE_5 -b:v:6 4.5M -maxrate:6 4.8M -bufsize:6 8M \
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-map v:0 -s:7 $V_SIZE_6 -b:v:7 6M -maxrate:7 6.42M -bufsize:7 11M \
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-map v:0 -s:8 $V_SIZE_6 -b:v:8 7.8M -maxrate:8 8.3M -bufsize:8 14M \
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-init_seg_name init\$RepresentationID\$.\$ext\$ -media_seg_name chunk\$RepresentationID\$-\$Number%05d\$.\$ext\$ \
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-use_template 1 -use_timeline 1 \
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-seg_duration 4 -adaptation_sets "id=0,streams=v id=1,streams=a" \
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-f dash Dash/dash.mpd
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# Fallback video file
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ffmpeg -i $VIDEO_IN -y -c:v libx264 -pix_fmt yuv420p -r $FPS -s $V_SIZE_1 -b:v 1.8M -c:a aac -b:a 128k -ac 1 -ar 44100 fallback-video-$V_SIZE_1.mp4
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