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• ffmpeg screencasting with webcam

  6 septembre 2017, par curiouser

  I want to use the screen view of the computer in real-time for a fake webcam. I did the video action on the bottom. But the frames like the video (2.34) are forming on top of each other. How can I solve this problem.

  https://www.youtube.com/watch?v=6AZRiW3hHrw

  Load the module
  
  sudo modprobe v4l2loopback exclusive_caps=1
  
  
  
  Find the dummy device
  
  v4l2-ctl --list-devices
  
  
  
  Start the virtual-webcam (change "/dev/video1" to reflect your system)
  
  ffmpeg -f x11grab -r 15 -s 1920x1080 -i :0.0+0,0 -vcodec rawvideo -pix_fmt yuv420p -threads 0 -f v4l2 /dev/video1

• How to get the support for SRT (Secure Reliable Transport) in React Native (for both iOS & Android) ?

  18 mars 2021, par Sourav Dey

  I tried many ways to get the support for SRT (Secure Reliable Transport) streaming in React Native but none of them worked. There were very few resources over the Internet and none seems to be working.
I tried using ffmpeg library but they are not providing the support for SRT as of now.

  


  The following error was thrown when a valid SRT link was passed to the below code :

  


  Code :

  


  useEffect(() => {&#xA;    RNFFmpeg.execute(&#xA;      &#x27;-i "srt://:<port>?streamid=live.sls.com/live/test2" -vcodec copy -acodec copy -strict -2 -y -f mpegts /storage/emulated/0/Download/srt_test_0.ts&#x27;,&#xA;    ).then(result => console.log(`>> FFmpeg process exited with rc=${result}.`));&#xA;&#xA;    return () => {&#xA;      console.log(&#x27;cancelling all executions&#x27;);&#xA;      RNFFmpeg.cancel();&#xA;    };&#xA;  }, []);&#xA;</port>

  


  Output :

  


  srt://:<port>?streamid=live.sls.com/live/test2: Protocol not found&#xA;index.js:115 Did you mean file:srt://:<port>?streamid=live.sls.com/live/test2index.js:22 &#xA;>> FFmpeg process exited with rc=1.&#xA;</port></port>

  


  Can anyone please help ?

  


• How to stream MacOS desktop screen over local IP using ffmpeg or python or objective-C or Swift ?

  24 novembre 2024, par Akella Niranjan

  I am trying to build a service/application/script on MacBook that can help me share my desktop screen [Mirror my screen] over a local IP address.

  


  Or I want to display it on a webpage using flask framework using python.

  


  I just wish to look at my desktop screen along with the mouse movements on a web-browser, just like a Remote Desktop.

  


  I did try the following command, but when I try to open my browser and go to the IP address it just shows a blank screen

  


  sudo ffmpeg -f avfoundation -framerate 30 -pix_fmt uyvy422 -i "0" -listen 1 -f mp4 -movflags frag_keyframe+empty_moov -preset ultrafast -tune zerolatency  "http://localhost:8000"


  


  Please kindly help !!