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• RTP stream from ffmpeg not reaching mediasoup producer : what could be wrong ? [closed]

  5 novembre 2024, par Francesco Vignola

  I developed a producer for mediasoup that is supposed to receive the RTP stream generated by ffmpeg (via fluent-ffmpeg) and send it to the consumer.

  


  ffmpeg correctly generates the stream, and I conducted a test with tcpdump, where I can see the traffic generated by ffmpeg being sent locally to the port of the PlainTransport with which the producer is created.

  


  However, neither the producer nor the consumer seem to be able to intercept it, as the listeners I attached to the specific events are never triggered.

  


  I also started an ffmpeg client to receive the stream, and the test was successful (it receives the stream). However, I can’t understand why it doesn't work with mediasoup.

  


  Can someone help me ? Did I forget any configuration parameters ?

  


  The code is as follows :

  


  const router = await worker.createRouter({
   mediaCodecs: [{
      kind: 'video',
      mimeType: 'video/VP8',
      clockRate: 90000,
      payloadType: 96
   }]
});

const transport = await router.createPlainTransport({
   listenIp: { ip: '127.0.0.1' },
   rtcpMux: false,
   comedia: true
});

const producer = await transport.produce({
   kind: 'video',
   rtpParameters: router.rtpParameters
});

const { localIp: ip, localPort: port } = transport.tuple;
const { localPort: rtcpPort } = transport.rtcpTuple;

await transport.connect({
   ip: ip,
   port: port,
   rtcpPort: rtcpPort
});

ffmpeg(videoFilePath)
   .inputOptions('-re')
   .videoCodec('libvpx')
   .outputOptions([
       '-f rtp',
       '-payload_type', '96',
       '-ssrc', ssrc,
       '-an',
       '-sdp_file', 'out.sdp'
   ])
   .output(`rtp://${ip}:${port}?rtcpport=${rtcpPort}`)
   .run();


  


  The video to be streamed has an .mp4 extension and is saved locally on the server.

  


  Thank you to anyone who is willing to help me.

  


• which video format is bessed for flat graphical animations

  26 avril 2020, par Zarc Rowden

  If i were to create an mp4 out of an svg animation, much of the color data in the output is the same, in PNG compression you can significantly reduce file size by reducing color. What I love about PNG is that the images always have a beautiful flat color / consistent look to them as opposed to jpegs which look very messy after antialiasing etc. (in the case of graphics to clarify). My feeling about .mp4 is that the compression technique results in frames that look "messy" like jpegs do when representing flat graphics or text. Is there a better codec out there ? Is this what webm does well ?
Thanks in advance for the input !

  


• Revision 17032 : bug dans le reducteur : taille_preview est un nombre, pas un oui|non

  28 janvier 2011, par cedric -