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• lavfi : port mp=pp7 to libavfilter

  25 décembre 2014, par Arwa Arif

  lavfi : port mp=pp7 to libavfilter
  The only difference with mp=pp7 is that default mode is "medium", as stated
  
  in the MPlayer docs, rather than "hard".
  Signed-off-by : Stefano Sabatini <stefasab@gmail.com>
  

  • [DH] LICENSE.md
  • [DH] configure
  • [DH] doc/filters.texi
  • [DH] libavfilter/Makefile
  • [DH] libavfilter/allfilters.c
  • [DH] libavfilter/version.h
  • [DH] libavfilter/vf_pp7.c
  • [DH] libavfilter/vf_pp7.h
  • [DH] libavfilter/x86/Makefile
  • [DH] libavfilter/x86/vf_pp7.c

• PHP FFMpeg error ffprobe failed to execute command "ffprobe.exe" "-help" "-loglevel" "quiet"

  5 mars 2017, par Michele

  I’m searching for a way to compress and convert uploaded videos on my site, I’m trying to use FFMpeg with this PHP basic code (on windows) :

  <?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');
  
  $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’m getting this error :

  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

  what am I doing wrong ? there are better libraries ?

• Playing audio file using libavcodec and libao

  21 août 2013, par sarah john

  Myself trying to play an audio file using libavcodec in qt5 .While trying to play i am unable to play the the file.
  while decoding the file using av_read_frame()
  audioStream->index=0
  and packet.stream_index is some higher nos .so avcodec_decode_audio4() is not getting executed.Why is it so ?
  I am getting output as
  My output

  ---

  File Opend

  Input #0, ogg, from '/home/tel/Downloads/desktop-login.ogg':
  
  Duration: 00:00:07.72, start: 0.000000, bitrate: 108 kb/s
  
  Stream #0:0: Audio: vorbis, 44100 Hz, stereo, fltp, 112 kb/s
  
  audioStream 0x88b3f20
  
  Stream id: 0
  
  Codec ptr: 0x88b4100
  
  Codec Opened
  
  DRIVER ID 1
  
  Sample format 3
  
  Sample format:AV_SAMPLE_FMT_FLT 32
  
  Sample format channels 0
  
  Sample format rate 0
  
  Sample format  4
  
  buffersize  192008

  This is my program. My output is also given below.Please help me in solving this.

  for(i=0; i < container->nb_streams; i++){
  
  
  
      if(container->streams[i]->codec->codec_type==AVMEDIA_TYPE_AUDIO){
  
           stream_id=i;
  
           audioStream=container->streams[i];
  
  
  
           qWarning() <<"audioStream"<streams[stream_id]->codec;
  
  qWarning() <<"Codec ptr:"<< ctx;
  
  AVCodec *codec=avcodec_find_decoder(ctx->codec_id);
  
  if(codec==NULL){
  
          die("cannot find codec!");
  
  }
  
  
  
  if(avcodec_open2(ctx,codec,NULL)<0){
  
          die("Codec cannot be opended!");
  
  }
  
  else
  
          qWarning()<<"Codec Opened";
  
  
  
  
  
          ao_initialize();
  
          driver = ao_default_driver_id();
  
          qWarning()<<"DRIVER ID" <sample_fmt;
  
          qWarning()<<"Sample format"<channels;
  
     qWarning()<<"Sample format channels"<sample_rate;
  
    qWarning()<<"Sample format rate"<codec;
  
    while(av_read_frame(container,&packet)>=0)
  
    {
  
  
  
          if(packet.stream_index==audioStream->index){
  
          len=avcodec_decode_audio4(ctx,frame,&frameFinished,&packet);
  
          qWarning()<<"Enterd if loop";
  
  
  
          if(frameFinished){
  
              qWarning()<<"PLAYING";
  
              ao_play(audio_device, (char*)frame->extended_data[0],frame->linesize[0] );
  
          }
  
    }