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• Cannot get MediaStream from Electron app to browser via Openvidu media server

  11 juin 2021, par foxy.bunny

  I'm currently having an issue with openvidu-browser-2.17.0.js

  


  I'm trying to transfer a camera stream from RTSP to an Openvidu media server deployed on cloud and get the stream back on the browser.

  


  The RTSP stream was converted into an HLS stream using FFmpeg and played using hls.js. It was captured in an video tag in HTML and I used the HTMLMediaElement.captureStream().getVideoTrack() to generate MediaStreamTrack and passed it into the videoSource property in initPublisher. This publisher part was wrapped in electron. Then, the stream was connected to our cloud Openvidu server deployed on-premises exactly like in the Docs (https://docs.openvidu.io/en/2.18.0/deployment/deploying-on-premises/). The subscriber part is a simple HTML page displayed on the browser to get the stream from the cloud server. The subscriber is responsible for creating session and generating stream from the media server when streamCreated event occurs.

  


  The whole workflow worked nicely when we tested it with our webcam, however, when we use MediaStreamTrack of our stream video instead of webcam, the subscriber part only showed the blank video.

  


  My question is :

  


  1 : Is it possible to stream an MediaStream to Openvidu media server like that ?

  


  2 : If yes, then what am I doing wrong here ?

  


  Describe the bug

  


  Cannot get MediaStream from Electron app to browser via Openvidu media server.

  


  Expected behavior

  


  Receive the stream from the Electron app to browser via Openvidu media server.

  


  Wrong current behavior

  


  Only get blank video

  


  Client device info

  


  

  • Chrome Version 91.0.4472.77 (Official Build) (64-bit) on Windows 10 Version 10.0.19042 Build 19042

  


  


• How to record browser animation to video, on Server/VPS

  11 novembre 2015, par Andy B

  I have one big question : How to record an animation that plays in the browser on a server/VPS ? We’re looking for a open/source or even proprietary solution.

  The use-case :

  We have an online project that generates animations and we want to record them on the server side.
  Practically it’s as simple as that, as opening a url(eg : https://greensock.com/gsap) in the browser and record the animation.

  On the local PC it works if we use ffmpeg, but we want to record the video on the server side, especially on a VPS without GUI.

  There are some solutions :

  1. Install a Lightweight GUI on the VPS, accesible through VNC

  Something like this :
  https://vpsboard.com/topic/2786-running-a-lightweight-gui-on-your-vps/

  Then create a cron job that will do the following :

  • open the browser with the correct url and play the animation
  • use ffmpeg to record the animation
  • save the video somewhere

  This solution allows a SINGLE execution thread at the same time and I don’t really like the setup.

  2. Use a fake X server

  Create/use a fake X server, tell the browser to run in there, tell ffmpeg to record that screen !?

  The question is : HOW ?

  3. Virtual Machines within the VPS

  The question is : HOW ?

  I would like to have the possibility to execute this job in a sort of container (be it docker or virtual machines within the VPS), having also the possibility to execute multiple jobs in parallel.

  Thank you all in advance !

• How to install FFMPEG on windows server..?

  20 mai 2023, par Praful Zaru

  Thanks in advance..

  



  I would like to install ffmpeg on my windows server.

  



  My php version is 5.2.3.

  



  i followed and copied the avcodec.dll and
avformat.dll files to system32 folder.and i copied ffmpeg file into php5\ext folder.Then i added tha extension php_ffmpeg in ini file extension.

  



  and also ffmpex.exe in c :/ffmpeg folder.

  



  i give the full rights of that all files.

  



  But ffmpeg still not working.

  



  Anyone guide me which thing i missed.....

  



  Thanks...