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• Decode h264 example ios 7 frame by frame

  18 février 2016, par Андрей Ярядом

  Good day.

  I have a ip camera. From it frame by frame comes stream h264.

  On the Internet, in particular on stackoverflow, a lot of information about how to decode h264 on iOS.
  But this information is not clear.
  I ask you to show me an example and show right direction of how to decode a frame by frame h264 stream to iOS 7.

  What options I have seen and what I know about them :

  • ffmpeg - not suitable for me, as it has LGPL license.

  • AVAnimator library - license inappropriate for me.

  • Hardware decoder - the best solution, but as I understand it, is only
    available for iOS 8.

  For me to be the perfect option if you give me an example for correct decoding h264 stream and display it on the way to the screen.

  Regards.

• Using a Web-based installer to retrieve (not distribute) 3rd party GPL or non-free software

  25 août 2013, par user1493918

  I am developing a software product which is able to communicate over a command line interface with GPL-covered software (specifically, my software can feed commands to FFMpeg). I understand that a crucial aspect of the GPL license is whether or not you distribute GPL-covered applications. My goal is to allow my users to have a seamless experience installing both my software and 3rd party GPL software. But I am trying to do this without my software actually including the the 3rd party (GPL-covered) software. To do this I am considering Web-based installers. I could use a Web-based installer to allow the end-user the option to retrieve a GPL-covered or non-free software app from a totally different server, independent of my own and outside my control. The user would be the one to install the software simply by making a decision (i.e. pressing "Next" in my installer). If they chose to do so, then my software's Web-based installer would retrieve the 3rd-party software, decompress and install it, then move on to installing my own application. In this way, my installer doesn't ship any GPL-covered or non-free software, and yet from the user's perspective all they had to do is click Next... Next... Next... Done !

  I have read about the GPL allowing you to distribute GPL-covered apps as part of an "aggregate..."
  http://www.gnu.org/licenses/gpl-faq.html#MereAggregation

  ...but this scenario isn't that. It's allowing the user to retrieve applications or libraries at his own discretion, using his own bandwidth, downloading from a server that has nothing to do with me.

  I can't seem to find information anywhere about the GPL-related licensing implications of using a Web-based installer. My goal is simply to give the end user every high-quality transcoding option possible within FFMpeg without stepping on anybody's toes legally.

  Possible ? If so then I'm hoping someone might be able to point me to a software installer program that would facilitate this. Thank you in advance for any replies.

• Uncaught Alchemy\BinaryDriver\Exception\ExecutableNotFoundException

  27 août 2018, par Jass

  I have linux shared hosting and Goddady is not installing ffmpeg extension on it so I have to keep binary library within my code so I am using https://github.com/PHP-FFMpeg/PHP-FFMpeg/ and following following steps.

  • I cloned project on on my local > windows 10 > laragon
  • I did composer install

  Now I called their example like following

  require 'vendor/autoload.php';
  
  $ffmpeg = FFMpeg\FFMpeg::create(array(
  
  'ffmpeg.binaries'  => 'F:/laragon/www/PHP-FFMpeg/src/FFMpeg',
  
  'ffprobe.binaries' => 'F:/laragon/www/PHP-FFMpeg/src/FFMpeg',
  
  'timeout'          => 3600, // The timeout for the underlying process
  
  'ffmpeg.threads'   => 12,   // The number of threads that FFMpeg should use
  
  ));
  
  $video = $ffmpeg->open('1535349237.mp4');
  
  $frame = $video->frame(FFMpeg\Coordinate\TimeCode::fromSeconds(2));
  
  $frame->save('image.jpg');

  But I am getting following error.

  Fatal error : Uncaught
  Alchemy\BinaryDriver\Exception\ExecutableNotFoundException : Executable
  not found, proposed : F :/laragon/www/PHP-FFMpeg/src/FFMpeg in
  F :\laragon\www\PHP-FFMpeg\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\AbstractBinary.php:160
  Stack trace : #0
  F :\laragon\www\PHP-FFMpeg\src\FFMpeg\Driver\FFProbeDriver.php(48) :
  Alchemy\BinaryDriver\AbstractBinary::load(Array, NULL,
  Object(Alchemy\BinaryDriver\Configuration)) #1
  F :\laragon\www\PHP-FFMpeg\src\FFMpeg\FFProbe.php(226) :
  FFMpeg\Driver\FFProbeDriver::create(Object(Alchemy\BinaryDriver\Configuration),
  NULL) #2 F :\laragon\www\PHP-FFMpeg\src\FFMpeg\FFMpeg.php(117) :
  FFMpeg\FFProbe::create(Array, NULL,
  Object(Doctrine\Common\Cache\ArrayCache)) #3
  F :\laragon\www\PHP-FFMpeg\index.php(6) : FFMpeg\FFMpeg::create(Array)

  4 main Next FFMpeg\Exception\ExecutableNotFoundException : Unable to load FFProbe in

  F :\laragon\www\PHP-FFMpeg\src\FFMpeg\Driver\FFProbeDriver.php:50 Stack
  trace : #0 F :\laragon\www\PHP-FFMpeg\src\FFMpeg\FFProbe.php(226) :
  FFMpeg\Driver\FFProbeD in
  F :\laragon\www\PHP-FFMpeg\src\FFMpeg\Driver\FFProbeDriver.php on line
  50

  I tried to figure it out searching on github and google but no success so any suggestions please what could be the solution in this case ?