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• How to run ffmpeg on demand when someone opens my website with the player where a remote IP camera is displayed ?

  8 mai 2023, par alexiter

  I set up an nginx server to stream from an IP camera located elsewhere, I used a windows server because it was the one I had no use for (I usually prefer linux), I would need to know how I can make the ffmpeg command run only when someone opens the website where the player is located.

  


  This is my nginx.conf server code :

  


  worker_processes  1;

error_log  logs/error.log info;

events {
    worker_connections  1024;
}
rtmp {
    server {
        listen 1935;
        ping 30s;
        notify_method get;
        application live {
            live on;
            on_publish http://*******:8080/auth;
            dash on; 
            dash_path tmp/dash;
            
            
        }
    }
}
http{

   server {
        listen 8080;
        location /auth {
        if ($arg_psk = '*****') {
    return 201;
    }
  return 404;
  }
}
   
   server {
        listen 8443 ssl;
        server_name stream.*****.com;
        
        ssl on;
        ssl_certificate C:/Certbot/live/stream.*****.com/fullchain.pem;
        ssl_certificate_key C:/Certbot/live/stream.****.com/privkey.pem;
        ssl_session_timeout 5m;
        charset utf-8;
        location /dash {
            root tmp;
            add_header Cache-Control no-cache;
        }
        location / {
            root www;
        }
        

   }
}



  


  The command that I use from the DOS console in windows is this :

  


  ffmpeg -rtsp_transport tcp -i rtsp://*****:******@******.com:557/Streaming/Channels/101 -c copy -f flv -y -t 35 rtmp://********:1935/live/stream?psk=********


  


  Basically what I need is that ffmpeg is not running constantly, only when someone wants to view the video from the IP camera. (I have programmed ffmpeg to finish after 35 seconds, although I will put five minutes later)

  


• sdl 1.2 & ffmpeg 1.09 flickering when overlays a picture during a video is playing

  29 septembre 2014, par Alberto Martín

  Iḿ developing a media player using SDL1.2 & ffmpeg 1.09.(C programming over VS2010, win7)

  I have flickering when i try to overlay an image in the screen during the video is playing.(Like full screen buttons or an ad).

  To display the video i’m creating overlay using SDL_CreateYUVoverlay function. Then I set the rectangle and call SDL_DisplayYUVOverlay.

  I’m trying to show a picture while the video is playing.
  For showing the picture i tried YUV overlays(SDL_CreateYUVoverlay + SDL_DisplayYUVOverlay ) and also with surfaces(SDL_BlitSurface + SDL_UpdateRect or SDL_Flip) but it always flickers.

  I use ffplay.c as an example.

  I read something about merge two YUV overlays in one (2 input to 1 output), but i could not found information or examples about that.

  Does anyone knows how to do this ?

• Files of ffmpeg after installation on mac

  31 janvier 2018, par Hélder

  While reading this post on motion vector on SO, I went to my mac system files and tried to find the vf_codecview.c and frame.c files but without success.

  Does anyone know where they are located after we install ffmpeg ?