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• Error using javacv library for live streaming camera to server

  22 juin 2015, par Prathyush Kumar

  I am new to live-streaming i’m following this link
  here for implementing camera streaming to server with ffserver listening on port 8090.But my code breaks at this line

  public void startRecording() {
  
      try {
  
          recorder.start();    //breaks here
  
          startTime = System.currentTimeMillis();
  
          recording = true;
  
          audioThread.start();
  
      } catch (FFmpegFrameRecorder.Exception e) {
  
          e.printStackTrace();
  
      }
  
  }

  I debugged a little bit to find out what is happening and i found out in this line in FFmpegFrameRecorder.class

  if((this.oformat.flags() & 1) == 0) {
  
      AVIOContext pb1 = new AVIOContext((Pointer)null);
  
      if((ret = avformat.avio_open(pb1, this.filename, 2)) < 0) {//throwing exception here
  
          this.release();
  
          throw new Exception("avio_open error() error " + ret + ": Could not open \'" + this.filename + "\'");
  
      }
  
  
  
      this.oc.pb(pb1);
  
  }

  ret is -5 which is less than 0 and so it cannot open the file(rtmp ://live:live@192.168.0.115:8090/live/test.flv).

  I am not able to understand whats happening in avformat.class Please help

  Is this any configuration problem for ffserver or is it anything else ?I’m not able to figure this out please any help would be greatly appreciated.

• Is there a way i can live stream in real time a canvas and send it to another web server [closed]

  7 mai 2024, par N0edL

  I'm working on a project where I have a canvas displaying gameplay, which is currently being live-streamed to the client canvas. Now, I want to stream this gameplay canvas to a third-party web server in real time using HLS or RTMP, but I'm unsure where to start. Could anyone provide some guidance or tips on how to achieve this ?

  


  Here's what I've tried so far :

  


  

  • I experimented with FFmpeg for the streaming, but didn't make much progress.

  


  • I have a system in place that streams the gameplay to the client canvas.

  


  


  Any advice on how to set up the live stream from the canvas to the third-party server using HLS/RTMP would be greatly appreciated. Thanks in advance !

  


• Live Streaming over HTTP using CloudFront and FFMPEG having delay issue

  23 avril 2021, par jitendra-gautam

  Live Streaming using CloudFront and FFMPEG having delay issue I am using the NodeJS server with FFMPEG and live streaming to CloudFront, which is then consumed by many people via CloudFront. Below is the data received at the user's end.

  


  #EXTM3U
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:1317
#EXT-X-ALLOW-CACHE:NO
#EXT-X-TARGETDURATION:1
#EXTINF:0.833333,
1317.ts
#EXTINF:0.833333,
1318.ts
#EXTINF:0.833333,
1319.ts


  


  The problem is the next .ts file that is 1320.ts is taking time to create on the server, thus the user is seeing the loading sign, and when this 1320.ts is created on the server, thereafter only the user is able to see the next live stream frame. How can the streaming be continuous ?? Below is the FFMPEG command that is being used :

  


  process = child_process.spawn('ffmpeg', commandArgs);



  


  let commandArgs = [
  '-loglevel',
  'debug',
  '-protocol_whitelist',
  'pipe,udp,rtp,rtmp,http,https,tcp',
  '-fflags',
  '+genpts',
  '-f',
  'sdp',
  '-i',
  'pipe:0',
  '-c:v',
  'libx264',
  '-crf',
  '21',
  '-preset',
  'veryfast',
  '-g',
  '25',
  '-sc_threshold',
  '0',
  '-c:a',
  'aac',
  '-b:a',
  '128k',
  '-ac',
  '2',
  '-hls_flags',
  'delete_segments+append_list',
  '-f',
  'segment',
  '-segment_list_flags',
  'live',
  '-segment_time',
  '1',
  '-segment_list_size',
  '3',
  '-segment_format',
  'mpegts',
  '-segment_list',
  `${RECORD_FILE_LOCATION_PATH}/${fileName}.m3u8`,
  `-segment_list_type`,
  'm3u8',
  `${RECORD_FILE_LOCATION_PATH}/%d.ts`
];