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  • restream the rtmp stream by using ffmpeg and nginx-rtmp-module

    30 octobre 2014, par Stanislav

    This is my current rtmp configuration for localhost, everything works well

      # Transcoding (ffmpeg needed)
    

    
   application big {
    

    
       live on;
    

    
   exec /usr/local/bin/ffmpeg -re -i rtmp://localhost:1935/$app/$name -vcodec flv -acodec copy -f flv rtmp://localhost:1935/anotherapp/${name};
    

    
   }
    

    
application anotherapp {
    
       live on;
    
  }

    This is what I am trying to achive

      # Transcoding (ffmpeg needed)
    

    
   application big {
    

    
       live on;
    

    
   # rtmp://localhost:1935/$app/$name  -> Receive this address dynamically from outside, for example the address will be rtmp://142.204.134.93/red5app/12345
    
   # rtmp://localhost:1935/anotherapp/${name};  -> and create new stream on my server with the same name. 
    
   # So this will be the result:
    

    
   exec /usr/local/bin/ffmpeg -re -i  rtmp://142.204.134.93/red5app/12345 -vcodec flv -acodec copy -f flv rtmp://localhost:1935/anotherapp/12345;
    

    
   }
    

    
application anotherapp {
    
       live on;
    
  }

    Thank you very much in advance.

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  • Transcode H264 stream into mpeg2 with ffmpeg and nginx-rtmp module

    21 mai 2015, par inside

    I am using nginix web server and nginx-rtmp module for managing my video stream encoded in h264. Here is my nginx conf :

    rtmp {
    
server {
    
    listen 1935;
    

    
    application big {
    
        live on;
    

    
    exec ffmpeg -re -i rtmp://localhost:1935/$app/$name -vcodec 
    
         libx264 -vprofile baseline -acodec libvo_aacenc -ac 1 -ar 441000 
    
         -f flv rtmp://localhost:1935/hls/${name};
    
      }
    
   }
    

    
   application hls
    
   {
    
      live on;
    
      hls_path /usr/local/nginx/html/video;
    
   }
    
}

    it works well in browser, however because my mobile client is Adobe Air it would only work on Android but not Apple, because Apple doesn’t support H264 encoding through AIR applications, so I was trying to transcode the stream to something supported for example mpeg. And this is how I changed my ffmpeg :

        exec ffmpeg -re -i rtmp://localhost:1935/$app/$name -vcodec 
    
         mpeg2video -acodec copy -b:v 10M -b:a 128k 
    
         -f mpegts rtmp://localhost:1935/hls/${name};

    However it just won’t show the video not in a browser nor on device, my assumption is that it probably failed to transcode.

    Maybe I am missing something ? Any ideas are highly appreciated.
    Thank you.

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