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• How to encode three streams in live from a CloudStorage ?

  18 mars 2021, par Damien Bertholet

  I search a lot and doesn't find anyone posted that question. If I'm wrong, I'm sorry and let me know the link please.

  


  Here is what I would like to do. I have an application that can record his screen as well as his computer's microphone and system sound. I save the three pieces in separate files which I then send to my server.

  


  Then I write these files directly in Azure strorage, live. Once the recording is finished, it may not be fully uploaded yet, I would like that we can already listen to what has been uploaded.

  


  So this I would like my server to start three streams to Azure Storage (it's an easy part), put those three streams in ffmpeg and output me an output that I can stream in HTTP response.

  


  The processing will only merge the two audio tracks and re-encode the audio in aac (it may be in opus) but I would not touch the video (which is in h264).

  


  Also, and it seems this is a very important point, the video is in mp4 format.

  


  Does this sound theoretically feasible ? If so, any hint to helping me ?

  


  Thereafter, I will have a process that will transform the three files into a ready-to-use mp4 file so that I don't have to encode every time the file is requested. But I see no stakes for this part there.

  


• http-flv live broadcast with flv.js error

  29 mars 2019, par Forest Yang

  When I try nginx + nginx-http-flv-module + flv.js to play video from camera, error happened, but play with VLC works fine.

  log in nginx :

  flv live: app args MUST be specified, client: 192.168.89.1, server: myserver, request: "GET /live.html HTTP/1.1", host: "192.168.89.134:8080"

  Some key configurations,

  nginx.conf :

  http{
  
     ...
  
     server{
  
     ...
  
      location /live {
  
              flv_live on;
  
              chunked_transfer_encoding  on; #open 'Transfer-Encoding: chunked' response
  
              add_header 'Access-Control-Allow-Origin' '*'; #add additional HTTP header
  
              add_header 'Access-Control-Allow-Credentials' 'true'; #add additional HTTP header
  
          }
  
  
  
      }
  
  }
  
  
  
  rtmp {
  
      server {
  
          listen 1935;
  
          server_name 192.168.89.134;
  
  
  
          application myapp {
  
              live on;
  
              gop_cache on; 
  
            }
  
      }
  
  }

  ffmpeg command :

  ffmpeg -f avfoundation -s 1280x720 -r 30  -i 0 -f flv rtmp://192.168.89.134:1935/myapp/test

  VLC network url :

  http://192.168.89.134:8080/live?port=1935&app=myapp&stream=test

  HTML with flv.js :

  if (flvjs.isSupported()) {
  
              var videoElement = document.getElementById('videoElement');
  
              var flvPlayer = flvjs.createPlayer({
  
                  type: 'flv',
  
                  'isLive': true,
  
                  url: 'http://192.168.89.134:8080/live?port=1935&app=myapp&stream=test'
  
              });
  
              flvPlayer.attachMediaElement(videoElement);
  
              flvPlayer.load();
  
              flvPlayer.play();
  
          }

  Can anyone tell me why based your experience ? thank you.

• DVR + FFMPEG + IOS Authentication and Live Streaming Fails

  6 août 2013, par user1744691

  How to grab video from a DVR using ffmpeg and DVR is password protected. Is there a way to grab live stream from IP-Cam connected to DVR.

  I was able to stream a channel (may be recorded video) but whenever i tried to connect to a DVR could not get it done.

  this
  http://www.wowza.com/_h264/BigBuckBunny_175k.mov and this rtsp ://live.sabah.com.tr:443/atv/atv3/
  link works great for getting me stream
  but when i try my DVR's (http://admril:56789@mysite.com) (mysite.com = 213.115.94.108) link it fails to establish a connection using FFMEG.

  I have used a variety of variation of DVR's url but all in vein.

  Please let me know where i am wrong and how i can get live stream.