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• Passing arguments to Powershells Call Operatore - I can't get it to work

  2 janvier 2020, par morgola22

  For some reason I cannot get even the most simple Ffmpeg case to work :

  $pathToFfmpeg = "PathToFfmpeg\ffmpeg.exe"
  
  $video = "PathToVideoFile\video.mp4"
  
  $param = "--i $video", "output.avi"
  
  $execute = &$pathToFfmpeg $param

  This should result in the most basic Ffmpeg usage according to Ffmpeg website : ffmpeg -i input.mp4 output.avi.
  However all I receive is :

  ffmpeg.exe : ffmpeg version git-2020-01-01-7b58702 Copyright (c) 2000-2020 the FFmpeg developers
  
  At line:4 char:12
  
  + [string[]] $execute = &$pathToFfmpeg $param
  
  +                          ~~~~~~~~~~~~~~~~~~~~~
  
      + CategoryInfo          : NotSpecified: (ffmpeg version ...mpeg developers:String) [], RemoteException
  
      + FullyQualifiedErrorId : NativeCommandError
  
  
  
    built with gcc 9.2.1 (GCC) 20191125
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass 
  
  --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb 
  
  --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame 
  
  --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma 
  
  --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex 
  
  --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec 
  
  --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  
    libavutil      56. 38.100 / 56. 38.100
  
    libavcodec     58. 65.100 / 58. 65.100
  
    libavformat    58. 35.101 / 58. 35.101
  
    libavdevice    58.  9.102 / 58.  9.102
  
    libavfilter     7. 70.101 /  7. 70.101
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  Unrecognized option '-i PathToVideoFile\video.mp4'.
  
  Error splitting the argument list: Option not found

  So it seems I am doing something wrong. Anybody knows how I get this to work ? I have tried different methods to create the params array and checked with EchoArgs.exe, but no avail. I am out of ideas. It looks like Ffmpeg does not recognise what Powershell is passing to it.

• What is a correct way of ffmpeg dshow webcamera properties save and load ?

  12 juin 2020, par C0oo1D

  Command (PS == Windows PowerShell) :

  



  PS D:\> ffmpeg -f dshow -show_video_device_dialog True -video_device_save some_profile.txt -i 'video=MicrosoftR LifeCam Studio(TM)'


  



  FFmpeg Header :

  



  ffmpeg version git-2020-06-04-7f81785 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9.3.1 (GCC) 20200523
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 49.100 / 56. 49.100
  libavcodec     58. 90.100 / 58. 90.100
  libavformat    58. 44.100 / 58. 44.100
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 84.100 /  7. 84.100
  libswscale      5.  6.101 /  5.  6.101
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100


  



  Error after OK/Cancel/Close in camera settings dialog (empty file was created). Also tried without dialog - the same problem :

  



  [dshow @ 0715de40] Query for IPersistStream failed.
video=Microsoft® LifeCam Studio(TM): I/O error


  



  I assume that problem at the camera side, but I don't exclude my blindness (didn’t find any examples of saving settings or required command options in the documentation).

  



  Perhaps there is another way to save / load webcamera properties ?

  


• Error FFMpeg Laravel Filters on HLS conversion

  3 novembre 2020, par TwistCode

  I'm trying to transform a mp4 to m3u8 video format using ffmpeg library on Laravel.

  


  Currently it works with the bitrates and the size of the generated videos, but when I try to add the filters to define the resolutions, it generates the following log error.

  


  


  20-11-03 16:55:19] local.ERROR : custom_filter filter is supported
starting from 0.3 ffmpeg version ; your ffmpeg version is
git-2020-08-26-8f2c1f2 "userId":1,"exception" :"[object]
(FFMpeg\Exception\RuntimeException(code : 0) : custom_filter filter is
supported starting from 0.3 ffmpeg version ; your ffmpeg version is
git-2020-08-26-8f2c1f2 at
C :\laragon\www\maquillate\vendor\php-ffmpeg\php-ffmpeg\src\FFMpeg\Media\AdvancedMedia.php:344)

  


  


  This is my current implementation

  


      $lowBitrate = (new \FFMpeg\Format\Video\X264('libfaac', 'libx264'))->setKiloBitrate(250);
    $midBitrate = (new \FFMpeg\Format\Video\X264('libfaac', 'libx264'))->setKiloBitrate(500);
    $highBitrate = (new \FFMpeg\Format\Video\X264('libfaac', 'libx264'))->setKiloBitrate(1000);


        FFMpeg::FromDisk('local')->open($media)
            ->exportForHLS()
            ->setSegmentLength(10) // optional
            ->setKeyFrameInterval(48) // optional
            ->addFormat($lowBitrate, function ($video) {
                $video->addLegacyFilter(function ($filters) {
                    $filters->resize(new \FFMpeg\Coordinate\Dimension(640, 480));
                });
            })
            ->addFormat($midBitrate)
            ->addFormat($highBitrate)
            ->save('public/hls/' . $video->id . '/video.m3u8');


  


  If I remove the filters from this code, they work without any problem, but I need to add these dimensions.

  


  this is the documentation of Laravel FFmpeg what I need to do : https://github.com/protonemedia/laravel-ffmpeg#hls

  


  Note : my operating system is Windows 10