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rc3-pgm-monitor 

script to monitor an SRT stream with two lingo audio tracks, rendering ebur128 graphs, and push it back via SRT
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Jan Koppe 2021-12-17 22:59:44 +01:00 committed by GitHub
parent deb820a854
commit ea9d0650ba
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rc3-pgm-monitor.sh Normal file
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#!/bin/sh
set -euxo pipefail
FONT='/opt/comic.ttf'
STREAM="${1:-pgm}"
STREAM_OUT_SUFFIX="${2:-monitor}"
KEY_PLAY=$(cat /opt/srt_play)
KEY_PUBLISH=$(cat /opt/srt_publish)
SRT_HOST="srt://srt.mon2.de:20000"
ffmpeg -y -i "${SRT_HOST}?streamid=play/$STREAM/${KEY_PLAY}" \
-nostats -progress "/tmp/ffmpeg/${STREAM}_${STREAM_OUT_SUFFIX}" -loglevel repeat+level+info \
-filter_complex \
"[0:a:0]ebur128=video=1:meter=18:target=-14[native][native_a]; [native_a]anullsink; \
[native]drawtext=fontfile=$FONT:text=native:fontcolor=white:fontsize=60:box=1:boxcolor=black@0.5:boxborderw=5:x=(w-text_w)/2:y=(h-text_h)/1.5[native_overlay];\
[0:a:0]showvolume=r=50:w=640:h=20:b=0:ds=log:dm=1.0[native_vu]; \
[0:a:1]ebur128=video=1:meter=18:target=-14[lingo1][lingo1_a]; [lingo1_a]anullsink; \
[lingo1]drawtext=fontfile=$FONT:text=lingo1:fontcolor=white:fontsize=60:box=1:boxcolor=black@0.5:boxborderw=5:x=(w-text_w)/2:y=(h-text_h)/1.5[lingo1_overlay];\
[0:a:1]showvolume=r=50:w=640:h=20:b=0:ds=log:dm=1.0[lingo1_vu]; \
[0:a:2]ebur128=video=1:meter=18:target=-14[lingo2][lingo2_a]; [lingo2_a]anullsink; \
[lingo2]drawtext=fontfile=$FONT:text=lingo2:fontcolor=white:fontsize=60:box=1:boxcolor=black@0.5:boxborderw=5:x=(w-text_w)/2:y=(h-text_h)/1.5[lingo2_overlay];\
[0:a:2]showvolume=r=50:w=640:h=20:b=0:ds=log:dm=1.0[lingo2_vu]; \
[native_overlay][lingo1_overlay][lingo2_overlay]hstack=inputs=3[ebu_mix]; \
[0:v:0]drawtext=fontfile=$FONT:text=$STREAM:fontcolor=white:fontsize=100:box=1:boxcolor=black@0.5:boxborderw=5:x=(w-text_w)/2:y=(h-text_h)/1.5[preview_overlay];\
[native_vu][lingo1_vu][lingo2_vu]hstack=inputs=3[vu_mix]; \
[preview_overlay][vu_mix][ebu_mix]vstack=inputs=3[full_mix];[full_mix]framerate=fps=25[out]" \
-map "[out]" \
-g 75 \
-c:v libx264 -preset ultrafast -f mpegts "${SRT_HOST}?streamid=publish/${STREAM}_${STREAM_OUT_SUFFIX}/${KEY_PUBLISH}"