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• QCamera switch input pin number

  14 décembre 2017, par Preonix

  I have chinese video grabber which should work with my program. It has 2 connection variants : S-VIDEO and COMPOSITE.

  In native program bundled with this hardware I can switch input source from s-video to composite and vice versa. But I need to do it in my programm and I’ve founded solution with the help of FFMPEG. Just switch pin_number and that’s it. No need to know driver API of hardware.

  Another problem is that I can not attach this library to my CMAKE project, and I just thought that Qt could has some "switch pin_number" aswell, but I cant find anything useful in qt-docs.

  Thanks for any advices and sorry for my english, cheers !

• PHP-FFMpeg watermark not working

  30 août 2014, par user1017063

  I am trying to get PHP-FFMpeg to watermark a video but it is not working.

  I am working on Windows 7 , localhost Apache2 with the newest version of PHP.

  I installed PHP-FFMpeg from this source

  https://github.com/PHP-FFMpeg/PHP-FFMpeg/

  I installed the windows binaries and I set up a test run of the program with the example basic code

  $ffmpeg = FFMpeg\FFMpeg::create(array(
  
  'ffmpeg.binaries' => 'C:/ffmpeg/bin/ffmpeg.exe',
  
  'ffprobe.binaries' => 'C:/ffmpeg/bin/ffprobe.exe',
  
  'timeout' => 36000, // The timeout for the underlying process
  
  'ffmpeg.threads' => 12, // The number of threads that FFMpeg should use
  
  ));
  
  
  
  $video = $ffmpeg->open('video.mp4');
  
  $video
  
  ->filters()
  
  ->resize(new FFMpeg\Coordinate\Dimension(100, 100))
  
  ->synchronize();
  
  
  
  $video
  
  ->save(new FFMpeg\Format\Video\WebM(), 'export-webm.webm'); 

  The code works well and executes without any errors. So I assume that I’ve installed the program properly. So I try to add a watermark.

  $ffmpeg = FFMpeg\FFMpeg::create(array(
  
  'ffmpeg.binaries' => 'C:/ffmpeg/bin/ffmpeg.exe',
  
  'ffprobe.binaries' => 'C:/ffmpeg/bin/ffprobe.exe',
  
  'timeout' => 36000, // The timeout for the underlying process
  
  'ffmpeg.threads' => 12, // The number of threads that FFMpeg should use
  
  ));
  
  
  
  $coord = [ '10' , '10' ];
  
  $video = $ffmpeg->open('video.mp4');
  
  
  
  $video
  
  ->filters()
  
  ->watermark('watermark.png' , $coord )
  
  ->synchronize();
  
  
  
  $video
  
  ->save(new FFMpeg\Format\Video\WebM(), 'export-webm.webm');

  But I get the following error, an I am unsure what I am doing wrong.

  Any help you could could give would be much appreciated.

  Thanks.

  Fatal error: Uncaught exception 'Alchemy\BinaryDriver\Exception\ExecutionFailureException' with message 'ffprobe failed to execute command "C:/ffmpeg/bin/ffprobe.exe" "video.mp4" "-show_streams" "-print_format" "json"' in C:\Apache24\htdocs\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\ProcessRunner.php:100 Stack trace: #0 C:\Apache24\htdocs\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\ProcessRunner.php(72): Alchemy\BinaryDriver\ProcessRunner->doExecutionFailure('"C:/ffmpeg/bin/...') #1 C:\Apache24\htdocs\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\AbstractBinary.php(209): Alchemy\BinaryDriver\ProcessRunner->run(Object(Symfony\Component\Process\Process), Object(SplObjectStorage), false) #2 C:\Apache24\htdocs\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\AbstractBinary.php(137): Alchemy\BinaryDriver\AbstractBinary->run(Object(Symfony\Component\Process\Process), false, NULL) #3 C:\Apache24\htdocs\vendor\php-ffmpeg\php-ffmpeg\src\FFMpeg\FFProbe.php(241): Alchemy\BinaryDriver\AbstractBinary- in C:\Apache24\htdocs\vendor\php-ffmpeg\php-ffmpeg\src\FFMpeg\FFProbe.php on line 243

• Symfony PHP-FFMPEG (pulse00/ffmpeg-bundle) doesn't work

  8 juillet 2014, par harisK92

  I installed pulse00/ffmpeg-bundle

  and set it up like in documentation

  dubture_f_fmpeg:
  
      ffmpeg_binary:  C:\FFMPEG\bin\ffmpeg
  
      ffprobe_binary: C:\FFMPEG\bin\ffprobe

  But I got errors

  Unable to load FFProbe

  ..\vendor\php-ffmpeg\php-ffmpeg\src\FFMpeg\Driver\FFProbeDriver.php at line 50

      try { 
  
     }       return static::load($binaries, $logger, $configuration); 
  
     catch (BinaryDriverExecutableNotFound $e) { 
  
          throw new ExecutableNotFoundException('Unable to load FFProbe', $e->getCode(), $e); 
  
      } 
  
  } 

  When I add .exe

  dubture_f_fmpeg:
  
      ffmpeg_binary:  C:\FFMPEG\bin\ffmpeg.exe
  
      ffprobe_binary: C:\FFMPEG\bin\ffprobe.exe
  
  
  
     Unable to probe C:\Users\XXX\XXX\ProjectFolder\src\vendor\Bundle\Entity/../../../../web/uploads/videos/e4cbef010c42d819fd6c326011fb2434c4b43c68.mp4

  Code in my controller

  private  function getThumbnail(Video $videoObject)
  
      {
  
          $ffmpeg=$this->getFFMPEG();
  
          $video=$ffmpeg->open($videoObject->getAbsolutePath());
  
          $video->frame(FFMpeg\Coordinate\TimeCode::fromSeconds(10))
  
                ->save($videoObject->getImagesUploadDir().'/'."image.jpg");
  
  
  
      }