2023-02-07 22:00:04 +01:00
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# ansible_playbook_audiometer
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2023-02-17 15:50:19 +01:00
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Ansible Playbook to Install Audio Meter
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## Some useful links:
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+ [FFMPEG HLS](https://www.martin-riedl.de/2018/08/24/using-ffmpeg-as-a-hls-streaming-server-part-1/)
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## FFMPEG COMMAND
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Generate Audiometer for video
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```bash
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#!/bin/bash
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# video in 640 x 960 and 25FPS
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yt-dlp "https://youtu.be/eWZwzxNSLVc" -o - | ffmpeg -y -i pipe: \
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-nostats \
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-loglevel repeat+level+info \
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-filter_complex \
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"[0:v:0]scale=640x360[orig_scaled];\
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[full_mix]framerate=fps=25[out]; \
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[orig_scaled]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];\
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[0:a:0]ebur128=video=1:size=640x480:meter=9:target=-16:gauge=shortterm[native][native_a]; [native_a]anullsink; \
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[native]drawtext=fontfile=$FONT:text=native:fontcolor=white:fontsize=60:box=1:boxcolor=black@0.5:boxborderw=5:x=(w-text_w)/2:y=(h-text_h)/1.5[native_overlay];\
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[0:a:0]showvolume=r=50:w=640:h=60:b=0:ds=log:dm=1.0[native_vu]; \
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[preview_overlay][native_vu][native_overlay]vstack=inputs=3[full_mix] " \
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-map "[out]" \
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-g 30 \
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-c:v libx264 -bufsize 16M -maxrate 8M -crf 24 -pix_fmt yuv420p -preset ultrafast \
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-f mpegts "udp://[ffd2::1]:1235"
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```
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Listen o rtmp and gen hls
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```
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ffmpeg -listen 1 -i rtmp://localhost/stream \
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-nostats \
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-loglevel repeat+level+info \
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-filter_complex \
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"[0:v:0]scale=640x360[orig_scaled];\
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[full_mix]framerate=fps=25[out]; \
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[orig_scaled]drawtext=fontfile=$FONT:text=$STREAM:fontcolor=white:fontsize=100:box=1:boxcolor=black@0.5:boxborderw=5:x=(w-text_w)/2:y=(h-text_h)/1.5[preview_overlay];\
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[0:a:0]ebur128=video=1:size=640x480:meter=9:target=-16:gauge=shortterm[native][native_a]; [native_a]anullsink; \
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[native]drawtext=fontfile=$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];\
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[0:a:0]showvolume=r=50:w=640:h=60:b=0:ds=log:dm=1.0[native_vu]; \
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[preview_overlay][native_vu][native_overlay]vstack=inputs=3[full_mix] " \
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-map "[out]" \
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-g 30 \
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-c:v libx264 -bufsize 16M -maxrate 8M -crf 24 -pix_fmt yuv420p -preset ultrafast \
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-f hls -hls_time 4 -hls_playlist_type event stream.m3u8
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```
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Stream to rtmp://localhost/stream
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```
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yt-dlp "https://youtu.be/eWZwzxNSLVc" -o - | ffmpeg -y -i pipe: \
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-c:v libx264 -bufsize 16M -maxrate 8M -crf 24 -pix_fmt yuv420p -preset ultrafast \
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-c:a aac \
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-f flv rtmp://localhost/stream
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```
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Webplayer example
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```
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset=utf-8 />
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<title>videojs-contrib-hls embed</title>
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<link href="//vjs.zencdn.net/7.10.2/video-js.min.css" rel="stylesheet">
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</head>
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<body>
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<video-js id=vid1 width=640 height=960 class="vjs-default-skin" controls>
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<source
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src="stream.m3u8"
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type="application/x-mpegURL">
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</video-js>
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<script src="//vjs.zencdn.net/7.10.2/video.min.js"></script>
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<script src="https://github.com/videojs/http-streaming/releases/download/v2.16.0/videojs-http-streaming.min.js"></script>
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<script>
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var player = videojs('vid1');
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player.play();
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</script>
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</body>
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</html>
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```
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