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• How can I determine video rotation/orientation in PHP/FFMPEG/PhoneGap ?

  15 août 2024, par SomethingOn

  Once I upload videos to my server I'm creating a screencap using FFMPEG. Problem is, if the user takes a video in portrait mode the screencap is rotated 90º. The ridiculous things is that PhoneGap and FFMEG-php and FFMPEG don't seem to offer a mechanism for reading the video rotation/orientation value.

  



  I found another library called mediainfo that will provide the info, but not in an easy to read/digest manner and I'm trying to avoid having to use another library.

  



  Am I wrong about PhoneGap/FFMPEG ? Is there a direct way to determine video orienation ?

  



  ---

  



  Here's my solution as a PHP function :

  



  function get_video_orientation($video_path) {
    $cmd = FFMPEG_PATH . "ffprobe " . $video_path . " -show_streams 2>/dev/null";
    $result = shell_exec($cmd);

    $orientation = 0;
    if(strpos($result, 'TAG:rotate') !== FALSE) {
        $result = explode("\n", $result);
        foreach($result as $line) {
            if(strpos($line, 'TAG:rotate') !== FALSE) {
                $stream_info = explode("=", $line);
                $orientation = $stream_info[1];
            }
        }
    }

    return $orientation;
}


  


• Is it possible to read HLS (HTTP Live Stream) in C#

  27 juillet 2016, par kevinsal

  Is it possible to read an HLS stream in C# ? I have read though the documentation for the vlc.dotnet project and am not sure if it supports it, have done a little bit of research on FFMPEG, and have turned up with nothing, same with the libvlc.net library. May I be looking in the wrong place ? This is being done in WINFORMS

• How to use ffmpeg command in objective C

  7 avril 2016, par Anoop

  I’ve done with FFmpeg. Build Successfully and added in project. First time I was able to convert the file. But When I try again , program gets crash .
  So Some one suggest me , How to proper clean Up FFmpeg before sending next command. Or are there other way to send ffmpeg command.

   char **argv = (char **)malloc(sizeof(argc));
  
  
  
  argv[0]="ffmpeg";
  
  argv[1] = "-i";
  
  argv[2] = "-b:a";
  
  argv[3] = "192k";
  
  argv[2] =(char *)[inputFilePath UTF8String];
  
  argv[3] = (char *)[outputFilePath UTF8String];
  
  
  
  
  
     int result =   main_method(argc, argv);
  
  
  
  NSLog(@"result %d",result);