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• 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

• FFMPEG : how to select audio stream without language metadata

  2 décembre 2020, par riofly

  I have some source Video files with one or more audio streams inside.
  
I would to encode each source file with Italian language. Then I can do it.

  


  ffmpeg -i source-file.avi -c:v ... -c:a ... -map 0:a:m:language:ita ...


  


  But some source file has audio stream without Language metadata.
  
I look that it is possible to set Language metadata with "und" special value. Then I try to select the audio stream with this command :

  


  ffmpeg -i source-file.avi -c:v ... -c:a ... -map 0:a:m:language:ita? -map 0:a:m:language:und? ...


  


  (the " ?" char say to ffmpeg that he do not fire exception if the audio stream do not exists).
  
Unfortunatelly this command do not works... It seems that ffmpeg search the "und" language instead of search a audio stream "without" language.

  


  Video MetaData

  


  This is the video MetaData where audio stream do not have language value :

  


  Input #0, matroska,webm, from 'D:\My-Video.mkv':
  Metadata:
    title           : My-Video
    encoder         : libebml v1.3.3 + libmatroska v1.4.4
    creation_time   : 2016-01-20T16:02:03.000000Z
  Duration: 01:15:28.93, start: 0.000000, bitrate: 2775 kb/s
    Stream #0:0: Video: h264 (High), yuv420p(progressive), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 1k tbn, 50 tbc (default)
    Metadata:
      BPS             : 2387529
      BPS-eng         : 2387529
      DURATION        : 01:15:28.920000000
      DURATION-eng    : 01:15:28.920000000
      NUMBER_OF_FRAMES: 113223
      NUMBER_OF_FRAMES-eng: 113223
      NUMBER_OF_BYTES : 1351616420
      NUMBER_OF_BYTES-eng: 1351616420
      _STATISTICS_WRITING_APP: mkvmerge v8.7.0 ('All of the above') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v8.7.0 ('All of the above') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2016-01-20 16:02:03
      _STATISTICS_WRITING_DATE_UTC-eng: 2016-01-20 16:02:03
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:1: Audio: ac3, 48000 Hz, 5.1(side), fltp, 384 kb/s (default)
    Metadata:
      BPS             : 384000
      BPS-eng         : 384000
      DURATION        : 01:15:28.928000000
      DURATION-eng    : 01:15:28.928000000
      NUMBER_OF_FRAMES: 141529
      NUMBER_OF_FRAMES-eng: 141529
      NUMBER_OF_BYTES : 217388544
      NUMBER_OF_BYTES-eng: 217388544
      _STATISTICS_WRITING_APP: mkvmerge v8.7.0 ('All of the above') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v8.7.0 ('All of the above') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2016-01-20 16:02:03
      _STATISTICS_WRITING_DATE_UTC-eng: 2016-01-20 16:02:03
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:2(ita): Subtitle: dvd_subtitle, 720x576 (default)
    Metadata:
      BPS             : 2218
      BPS-eng         : 2218
      DURATION        : 01:09:57.232000000
      DURATION-eng    : 01:09:57.232000000
      NUMBER_OF_FRAMES: 965
      NUMBER_OF_FRAMES-eng: 965
      NUMBER_OF_BYTES : 1163769
      NUMBER_OF_BYTES-eng: 1163769
      _STATISTICS_WRITING_APP: mkvmerge v8.7.0 ('All of the above') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v8.7.0 ('All of the above') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2016-01-20 16:02:03
      _STATISTICS_WRITING_DATE_UTC-eng: 2016-01-20 16:02:03
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES


  


  Can someone help me ?
  
Thanks !

  


• Flutter record front facing camera at exact same time as playing video

  27 novembre 2020, par xceed

  I've been playing around with Flutter and trying to get it so I can record the front facing camera (using the camera plugin [https://pub.dev/packages/camera]) as well as playing a video to the user (using the video_player plugin [https://pub.dev/packages/video_player]).

  


  Next I use ffmpeg to horizontally stack the videos together. This all works fine but when I play back the final output there is a slight delay when listening to the audio. I'm calling Future.wait([cameraController.startVideoRecording(filePath), videoController.play()]); but there is a slight delay in these tasks actually starting. I don't even need them to fire at the exact same time (which I'm realising is probably impossible), instead if I knew exactly when each of the tasks begun then I can use the time difference to sync the audio using ffmpeg or similar.

  


  I've tried adding a listener on the videoController to see when isPlaying first returns true, and also watching the output directory for when the recorded video appears on the filesystem :

  


        listener = () {
        if (videoController.value.isPlaying) {
          isPlaying = DateTime.now().microsecondsSinceEpoch;
          log('isPlaying '+isPlaying.toString());
        }
        videoController.removeListener(listener);
      };
      videoController.addListener(listener);

      var watcher = DirectoryWatcher('${extDir.path}/');
      watcher.events.listen((event) {
        if (event.type == ChangeType.ADD) {
          fileAdded = DateTime.now().microsecondsSinceEpoch;
          log('added '+fileAdded.toString());
        }
      });


  


  Then likewise for checking if the camera is recording :

  


      var listener;
    listener = () {
      if (cameraController.value.isRecordingVideo) {
        log('isRecordingVideo '+DateTime.now().microsecondsSinceEpoch.toString());
        //cameraController.removeListener(listener);
      }
    };
    cameraController.addListener(listener);


  


  This results in (for example) the following order and microseconds for each event :

  


  is playing: 1606478994797247
is recording: 1606478995492889 (695642 microseconds later)
added: 1606478995839676 (346787 microseconds later)


  


  However, when I play back the video the syncing is off by approx 0.152 seconds so doesn't marry up to the time differences reported above.

  


  Does anyone have any idea how I could accomplish near perfect syncing when combining 2 videos ? Thanks.