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• nginx.conf with RTMP module : Add watermark on MULTIPLE video streams withh ffmpeg

  16 mai 2023, par Frederick Eyland

  I need to add a watermark in nginx.conf on all my output streams. This is what I found from the documentation from ffmpeg but it is not working.

  



  exec ffmpeg -i rtmp://localhost/$app/$name -i /mnt/pictures/flowtech.png -filter_complex "overlay=10:10,split=5[out1][out2][out3][out4][out5]"
-map '[out1]' -map 0:a -c:v libx264 -c:a aac -ac 1 -strict -2 -b:v 256k -b:a 32k -vf "scale=480:trunc(ow/a/2)*2" -tune zerolatency -preset veryfast -crf 23 -f flv rtmp://localhost/hlsall/$name_low
-map '[out2]' -map 0:a -c:v libx264 -c:a aac -ac 1 -strict -2 -b:v 768k -b:a 96k -vf "scale=720:trunc(ow/a/2)*2" -tune zerolatency -preset veryfast -crf 23 -f flv rtmp://localhost/hlsall/$name_mid
-map '[out3]' -map 0:a -c:v libx264 -c:a aac -ac 1 -strict -2 -b:v 1024k -b:a 128k -vf "scale=960:trunc(ow/a/2)*2" -tune zerolatency -preset veryfast -crf 23 -f flv rtmp://localhost/hlsall/$name_high
-map '[out4]' -map 0:a -c:v libx264 -c:a aac -ac 1 -strict -2 -b:v 1920k -b:a 128k -vf "scale=1280:trunc(ow/a/2)*2" -tune zerolatency -preset veryfast -crf 23 -f flv rtmp://localhost/hlsall/$name_hd720
-map '[out5]' -map 0:a -c copy -f flv rtmp://localhost/hlsall/$name_src 1>>/tmp/rtmp_log;


  


• Processing Camera stream in Opencv, pushing it over RTMP (NGINX RTMP Module) using FFMPEG

  12 août 2019, par Asymptote

  Output video :
  https://youtu.be/VxfoBQjoY6E

  Explanation :

  I want to : Process camera stream in Opencv and push it over to RTMP server. I already have NGINX (RTMP module) set up and I have tested streaming videos with both RTMP (Flash Player) and HLS.

  I am reading the frames in a loop and using ’subprocess’ in python to execute ffmpeg command. Here’s the command I am using :

  command = [ffmpeg,
  
      '-y',
  
      '-f', 'rawvideo',
  
      '-vcodec','rawvideo',
  
      '-pix_fmt', 'bgr24',
  
      '-s', dimension,
  
      '-i', '-',
  
      '-c:v', 'libx264',
  
      '-pix_fmt', 'yuv420p',
  
      '-preset', 'ultrafast',
  
      '-f', 'flv',
  
      'rtmp://10.10.10.80/live/mystream']
  
  
  
  
  
  import subprocess as sp
  
  ...
  
  proc = sp.Popen(command, stdin=sp.PIPE,shell=False)
  
  ...
  
  proc.stdin.write(frame.tostring()) #frame is read using opencv

  Problem :

  I can see the stream fine but it freezes and resumes frequently. Here’s the output of FFMPEG terminal log :

  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
  
  frame=  117 fps= 16 q=22.0 size=     344kB time=00:00:04.04 bitrate= 697.8kbits/s speed=0.543x   

  It mentions speed at the end. I believe it should be close to 1x. I am not sure how to achieve that.

  And I am on the same network as server, I can post my python code if required. Need some ffmpeg guru to give me some advise.

  EDIT

  My input fps is actually 3.
  With '-use_wallclock_as_timestamps', '1' I can see in the log that speed is close to 1x.
  But HLS is not streaming live there’s 2 min delay, it halts and . Chris’s advise partially worked. I am not sure where exactly is the problem, I am starting to believe it has something to do with nginx-rtmp module.

  Here’s the final output, on left it’s flash and on right it’s hls. I am showing the ffmpeg options at the end.
  https://youtu.be/jsm6XNFOUE4

• ffmpeg can't work via nginx + nginx-rtmp-module

  2 mai 2018, par Ubunkun

  nginx version : nginx/1.12.2
  ffmpeg version 3.4.2

  I’m trying to below.
  -> nginx -> ffmpeg multi encode -> HLS publish

  nginx configration is below (nginx.conf)

  worker_processes  1;
  
  
  
  events {
  
      worker_connections  1024;
  
  }
  
  
  
  http {
  
      include       mime.types;
  
      default_type  application/octet-stream;
  
  
  
      sendfile        on;
  
  
  
      keepalive_timeout  65;
  
  
  
      server {
  
          listen       80;
  
          server_name  localhost;
  
  
  
          location / {
  
              root   html;
  
              index  index.html index.htm index.php;
  
          }
  
  
  
      location ~ \.php$ {
  
              root           html;
  
              fastcgi_pass   unix:/var/run/php-fpm/php-fpm.sock;
  
              fastcgi_index  index.php;
  
              fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
  
              include        fastcgi_params;
  
          }
  
  
  
          error_page   500 502 503 504  /50x.html;
  
          location = /50x.html {
  
              root   html;
  
          }
  
      }
  
  }
  
  
  
  rtmp {
  
      server {
  
          listen 1935;
  
          application hls {
  
              live on;
  
              exec /usr/local/sbin/ffscript.sh $name;
  
          }
  
  
  
          application hls2 {
  
              live on;
  
              hls on;
  
              hls_path /usr/local/nginx/html;
  
              hls_nested on;
  
              hls_fragment 9s;
  
              hls_variant _low  BANDWIDTH=300000;
  
              hls_variant _mid  BANDWIDTH=700000;
  
              hls_variant _high BANDWIDTH=1200000;
  
          }
  
      }
  
  }

  (/usr/local/sbin/ffscript.sh)

  export LIBVA_DRIVERS_PATH=/opt/intel/mediasdk/lib64
  
  export LIBVA_DRIVER_NAME=iHD
  
  export MFX_HOME=/opt/intel/mediasdk
  
  export PKG_CONFIG_PATH=/opt/intel/opencl:
  
  
  
  /usr/local/bin/ffmpeg -i rtmp://localhost/hls/${1} -vcodec h264_qsv -init_hw
  
  _device qsv:hw -b:v 128K -c:a aac -ar 44100 -ac 2 -r 30 -f flv rtmp://localhost/
  
  hls2/${1}_low -b:v 512k -c:a aac -ar 44100 -ac 2 -r 30 -f flv rtmp://localhost/h
  
  ls2/${1}_mid -b:v 1024k -c:a aac -ar 44100 -ac 2 -r 30 -f flv rtmp://localhost/h
  
  ls2/${1}_high

  But it can’t work. The access.log appears just one line.

  192.168.1.121 [02/May/2018:21:52:39 +0900] PUBLISH "hls" "test2" "" - 580840 753 "" "FMLE/3.0 (compatible; Lavf57.55" (21s)

  There is no "hls2" PUBLISH on access log.

  When I tried to run the ffmpeg command line while nginx is running, it was succeed.

  Why ffmpeg called by nginx doesn’t work ? If you have any solution, let me know.

  Bests,