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• mpegts : fix demuxing PES private stream 2

  31 août 2015, par Petri Hintukainen

  mpegts : fix demuxing PES private stream 2
  PES header size is 6 bytes (00 00 01 bf XX XX), not 0.
  
  BluRay text subtitles use private stream 2.
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/mpegts.c

• PHP-FFMpeg Installation and Basic Usage on windows issue

  7 mai 2017, par Miky

  following the README I installed PHP FFmpeg through Composer and I downloaded binaries from https://ffmpeg.zeranoe.com/builds/
  now I’m trying to run the "Basic Usage" example :
  

  <?php
  
  require("vendor/autoload.php");
  
  $ffmpeg = FFMpeg\FFMpeg::create();
  
  $video = $ffmpeg->open('video.mpg');
  
  $video
  
      ->filters()
  
      ->resize(new FFMpeg\Coordinate\Dimension(320, 240))
  
      ->synchronize();
  
  $video
  
      ->frame(FFMpeg\Coordinate\TimeCode::fromSeconds(10))
  
      ->save('frame.jpg');
  
  $video
  
      ->save(new FFMpeg\Format\Video\X264(), 'export-x264.mp4')
  
      ->save(new FFMpeg\Format\Video\WMV(), 'export-wmv.wmv')
  
      ->save(new FFMpeg\Format\Video\WebM(), 'export-webm.webm');
  
  ?>

  but i receive "Executable not found" errors because I didn’t understand where to put them
  

  I also tried specifying binaries ffmpeg.exe and ffprobe.exe with :
  

  $ffmpeg = FFMpeg\FFMpeg::create(array(
  
      'ffmpeg.binaries'  => '/pathtobin/ffmpeg',
  
      'ffprobe.binaries' => '/pathtobin/ffprobe',
  
      'timeout'          => 3600, // The timeout for the underlying process
  
      'ffmpeg.threads'   => 12   // The number of threads that FFMpeg should use
  
  ), $logger);

  but still same error... am I making a mountain out of a molehill ? any help is appreciated... Thanks

  EDIT 1

  I added ffmpeg\bin folder to system path and I can run executables from cmd from anywhere, but now I’m getting this error : "Executable not found, proposed : avprobe, ffprobe"...
  instead, if I give binary paths explicitly, I get 'ffprobe failed to execute command "C:/FFmpeg/bin/ffprobe.exe" "-help" "-loglevel" "quiet"'

  what am I doing wrong ?

  EDIT 2

  web server config

  • Windows 10 Pro
    
  • IIS 10
    
  • PHP 7.0.9
    

  site root ---> C:\inetpub\wwwroot\site\
  content :
  
   index.php
  
   input.mp4
  
   vendor/ (PHP-FFMpeg library folder)
  

  FFmpeg binaries ---> C:\inetpub\wwwroot\FFmpeg\
  content :
  
   ffmpeg.exe
  
   ffplay.exe
  
   ffprobe.exe
  

  index.php

  <?php
  
  ini_set('display_errors', 'On'); error_reporting(E_ALL);
  
  require("vendor/autoload.php");
  
  $ffmpeg = FFMpeg\FFMpeg::create(array(
  
      'ffmpeg.binaries'  => 'C:/inetpub/wwwroot/FFmpeg/ffmpeg.exe',
  
      'ffprobe.binaries' => 'C:/inetpub/wwwroot/FFmpeg/ffprobe.exe',
  
      'timeout'          => 3600, // The timeout for the underlying process
  
      'ffmpeg.threads'   => 12,   // The number of threads that FFMpeg should use
  
  ));
  
  $video = $ffmpeg->open('input.mp4');
  
  ?>

  result

  Fatal error: Uncaught Alchemy\BinaryDriver\Exception\ExecutionFailureException: ffprobe failed to execute command "C:/inetpub/wwwroot/FFmpeg/ffprobe.exe" "-help" "-loglevel" "quiet" in C:\inetpub\wwwroot\site\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\ProcessRunner.php:100 Stack trace: #0 C:\inetpub\wwwroot\site\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\ProcessRunner.php(72): Alchemy\BinaryDriver\ProcessRunner->doExecutionFailure('"C:/inetpub/www...') #1 C:\inetpub\wwwroot\site\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\AbstractBinary.php(209): Alchemy\BinaryDriver\ProcessRunner->run(Object(Symfony\Component\Process\Process), Object(SplObjectStorage), false) #2 C:\inetpub\wwwroot\site\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\AbstractBinary.php(137): Alchemy\BinaryDriver\AbstractBinary->run(Object(Symfony\Component\Process\Process), false, NULL) #3 C:\inetpub\wwwroot\site\vendor\php-ffmpeg\php-ffmpeg\src\FFMpeg\FFProbe\OptionsTester.php(61): Alchemy\Binary in C:\inetpub\wwwroot\site\vendor\php-ffmpeg\php-ffmpeg\src\FFMpeg\FFProbe\OptionsTester.php on line 63

• How to modify SPS/PPS aka Codec Private data of a mkv file

  13 novembre 2019, par Minh Nghĩa

  I encode my clip in 5 parts (output is x265 in MKV), using -ss and -t to seek to cut position. Now mkvtoolnix refuses to merge the encoded files, warning that codec private data doesn't match.

  From this question in mkvtoolnix repo, I learned that the codec private data is encoded in PPS/SPS field of the file. I check the encoding settings from mediainfo, and found that all settings are the same, just one file has a different numa-pool argument. I think my files can still be merged.

  How can I edit SPS/PPS data to fool mkvmerge into merging my files ? Thanks !