Recherche avancée

Sur d’autres sites (1290)

• ffprobe/ffmpeg exec doesn't return result on local machine, but works on production system

  27 juillet 2015, par Kinesias

  I want to get the duration of a movie, using ffprobe (part of ffmpeg).
  The command line I’m using is this :

  ffprobe -v error -show_entries format=duration -of
  
  default=noprint_wrappers=1:nokey=1
  
  path/to/video.mov

  It works perfectly in the shell, gives me a result of 4.5554 (seconds).

  However, if I call this command via exec on my local machine, I get an empty result.

  var_dump( exec("ffprobe -v .......") );
  
  returns string(0) ""

  Now comes the burner : It works perfectly on the production machine, though !!

  These are my configurations :

  Local machine:        Mac OS 10.9.5,      PHP 5.6.11   ffmpeg 2.7.1
  
  Production machine:   Mac OS Server 10.6  PHP 5.3.1    ffmpeg 2.7.2

  Is this kind of a bug in PHP 5.6 or something ???
  Thanks, Matt

• How many FFMPEG commands can I run on a machine

  16 septembre 2020, par Mickey

  Assuming that I have a machine that has the specifications listed below, how many ffmpeg commands (that are taking video from IP camera and encoding it for further stream) could be running at the same time :

  


  

  • i7 9th gen

  


  • 16 Gb of RAM

  


  • NVIDIA GeForce GTX 1060 3GB

  


  


  What is the resource takeup for each command like that.

  


  Example of one of the commands I am running could is below.

  


  ffmpeg -rtsp_transport tcp -i "rtsp://ipaddress:port/profile" -framerate 30 -video_size 1280x720 -vcodec libx264 -preset veryfast -maxrate 1984k -bufsize 3968k -vf "format=yuv420p" -g 60 -c:a aac -b:a 128k -ar 44100 -f flv rtmp://ipaddress:port/destination/application


  


• FFMPEG java command for mac machine

  15 novembre 2017, par java7760

  I am trying to make use of FFMPEG to convert/compression the .mov file to the .mp4 and while I am doing it with a Windows machine I didn’t face any problem with the java run time process command. But when I am trying to execute the same in a Mac machine the command itself is not getting executed.Please suggest me.

  Here is the sample code I am trying to use.

  import java.io.IOException;
  
  
  
  public class MyRuntime {
  
  
  
      public static void main(String[] args) {
  
  
  
              /*String cmd = "cmd /c ffmpeg.exe -i D:\\test\\xyz.mov D:\\test\\xyz.mp4 & del D:\\EP\\*.cap D:\\EP\\*.mov /f /s /q";
  
              Process p = Runtime.getRuntime().exec(cmd);*/
  
  
  
              String cmd = "/usr/local/Cellar/ffmpeg/3.4/bin/ffmpeg -i "
  
                      + "/Users/testuser/test/i.mov" + " " + "/Users/testuser/test/o.mov"; //+" && rm -rf "+infileName +" " +capfileName ;
  
                      System.out.println("CMD TO EXECUTE : " + cmd);
  
  
  
                      try {
  
                      Process p = Runtime.getRuntime().exec(cmd);
  
                      } catch (IOException e) {
  
                      // TODO Auto-generated catch block
  
                      e.printStackTrace();
  
                      }
  
      }
  
  
  
  }