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• av_guess_format return null

  21 février, par Iva

  I used example from http://cekirdek.pardus.org.tr/ ismail/ffmpeg-docs/output-example_8c-source.html :

  



  out_ctx = avformat_alloc_context();
out_ctx->oformat = av_guess_format(NULL, filename, NULL);
if (out_ctx->oformat == NULL)
{
    out_ctx->oformat = av_guess_format("mpeg4", NULL, NULL);
    if (out_ctx->oformat == NULL)
    {
        LOGI(1, "Could not guess output format\n");
        exit(1);
     }
}


  



  av_guess_format always return null. I don't understand what I must re-configured in FFMPEG for enable any formats.

  


• can't livestream on facebook as 720p when using API

  1er août 2018, par boygiandi

  I just realized that when we using facebook api to create a livestream ( /me/live_videos ) , we only get 360p as output max even we sent 1080p. But, if we use Facebook dialog, we can get to 720p, the same video input.

  FB.ui({
  
      display: 'popup',
  
      method: 'live_broadcast',
  
      phase: 'create',
  
  }, function(response) {
  
      FB.ui({
  
        display: 'popup',
  
        method: 'live_broadcast',
  
        phase: 'publish',
  
        broadcast_data: response
  
      }, function(response) {
  
      });
  
  });

  https://developers.facebook.com/docs/graph-api/reference/live-video/

  Does anyone know how to get 720p when we use Facebook graph API ?

• How do I get FFMPEG Progress in order to create a progress bar ?

  18 mai 2012, par polandeer

  I'm trying to create a simple GUI for ffmpeg but am having problems getting the progress of a command. I'm using PySide as the GUI toolkit and I'm also using python3. I'm using QProcess to run the command and would just like to be able to create a progress bar. The code can be found here : https://github.com/stephenmac7/ffpy/blob/master/ffpy.py

  Also, I'd like to be able to use the statusbar of the main window. Thank you.

  EDIT : Preferably I'd like to use QProgressDialog : http://www.pyside.org/docs/pyside/PySide/QtGui/QProgressDialog.html