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• Elegant early exit from a spawned ffmpeg process in C

  21 octobre 2016, par jackson80

  I have a program where I build an ffmpeg command string to capture videos with options input through a gtk3 gui. Once I have all my options selected, I spawn a process with the ffmpeg command string. And I add a child watch to tell me when the process has completed.

    // Spawn child process 
  
    ret = g_spawn_async (NULL, argin, NULL, G_SPAWN_DO_NOT_REAP_CHILD, NULL, NULL, &pid1, NULL);
  
    if ( !ret )
  
    {
  
      g_error ("SPAWN FAILED");
  
      return;
  
    }
  
  
  
  /* Add watch function to catch termination of the process.  This function
  
     * will clean any remnants of process */
  
    g_child_watch_add (pid1, (GChildWatchFunc)cb_child_watch, widget );

  Executing ffmpeg from a terminal using a command line, the program will give an option to input a "q" at the terminal to end the ffmpeg process early.
  Is there any way to send a "q" to that spawned process to elegantly end the ffmpeg ? I’m fairly sure I could kill the process using the process id, but I would rather stop it using a mechanism that allows ffmpeg to gracefully exit..
  This is running Centos 7, kernel 4.7.5, ffmpeg version 3.0.2.
  Since I can still access the terminal where the ffmpeg output is displayed, I’ve tried typing a "q", but it has no effect on the process.

• curl (7) error when trying to install Homebrew on mac

  16 janvier 2017, par Peleadora

  Wanted to install Homebrew on my mac (on version 10.11.6) and put this into terminal :

  /usr/bin/ruby -e "$(/usr/bin/curl -fsSL https://raw.github.com/mxcl/homebrew/master/Library/Contributions/install_homebrew.rb)"

  The thing i get is the following :

  curl: (7) Couldn't connect to server

  Now, I don’t have any knowledge about terminal and curl and proxy and all this stuff, but I really need Homebrew (actually I need ffmpeg but apparently homebrew is necessary for ffmpeg)... I remember having ffmpeg already installed half a year ago, but somehow I got it deleted. Now, I have a backup of that time, so can I just recover it - just homebrew and ffmpeg without recovering the whole backup ? Or is there a way just to install homebrew again ?

  Thanks for helping !

  -Peleadora

• Java ffmpeg progress bar

  7 juin 2012, par user1440140

  Even I am working for making a progress bar for ffmpeg in java... So for that I want to read all the progress....

  String[] command = {"gnome-terminal", "-x", "/bin/sh", "-c","ffmpeg -i /home/tmp/F.webm /home/tmp/converted1.mp4"};

  And then just execute this by :

  Process process = Runtime.getRuntime().exec(command);

  This runs perfectly... BUt I want to read all this progress to make a progress bar... SO how can I read this from that terminal...