Recherche avancée

Sur d’autres sites (12270)

• Is it posible to add an HTML page as an overlay in a RTMP stream using Nginx and FFMPEG ?

  4 août 2021, par tanowalla

  I have already installed Nginx on a EC2 instance (Ubuntu 18.04) for livestreaming to Youtube using RTMP. I want to setup a HTML page with a world clock and transparent background.

  


  I installed Nginx using this tutorial.

  


  https://www.scaleway.com/en/docs/setup-rtmp-streaming-server/

  


  Would it be possible to load the HTML page using NGINX and FFMPEG so i can overlay it over the RTMP livestream incoming from a camera and push it to Youtube ?

  


  I hope someone gets the idea, i apologize for my english, it is not my native language and have really no idea if this is even possible.

  


  Thank you very much in advance.

  


• How to http streaming while encoding the accessed file

  5 décembre 2020, par hibiki31

  I am making a web application that plays videos.

  


  Files include non-mp4 in my server.
So I need to convert it, but I want to do it when it is accessed.
I can't change the original or use additional storage space.

  


  I'm learning Python, but I'm happy with any solution.

  


  This function is implemented by Plex Home media server.
https://www.plex.tv/

  


  Thank you.

  


  ---

  


  Thanks for the comments i found.
http://nginx.org/en/docs/http/ngx_http_hls_module.html

  


  I haven't tried the code yet.

  


  I'm worried about three options.

  


  First, implemented in Python code.
Second, implemented as a module for applications like Nginx.
Third, Google already knows the answer.

  


• Ffmpeg mathematical "expression" syntax in filters

  9 novembre 2022, par Jason C

  Multiple ffmpeg filters take a mathematical expression as a parameter, for example setpts and select (examples from docs) :

  


  setpts='1/(25*TB) * (N + 0.05 * sin(N*2*PI/25))';
select=select=between(t\,10\,20)


  


  The docs for each filter are generally good about listing available variables for that specific filter, but the actual syntax of this expression appears (?) to be completely undocumented, despite its heavy use. For example, what functions are available (e.g. sin, between) ? Are boolean combinations allowable and if so, what are the operators ? What other mathematical operators are available ?

  


  What is the syntax of these expressions ? Or, at the very least, is some non-ffmpeg library parsing them and if so, what is it ? That way I can at least look up the syntax. Or have I missed some documentation section somewhere...?