Recherche avancée

Sur d’autres sites (7823)

• 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.

• vf_crop : make config_props work properly when called multiple times.

  18 mars 2013, par Anton Khirnov

  vf_crop : make config_props work properly when called multiple times.
  Do not leak the x/y expressions.
  

  • [DH] libavfilter/vf_crop.c

• ffmpeg works in command line but it doesn't work well in c#

  14 août 2016, par Ahmad Ali Mukashaty

  I want to stream movie via udp so I use this command line and it works well

  ffmpeg -re -i test.mkv -q 1 -vcodec libx264 -f mpegts udp://network:port

  but I want to run this command line using c# like this :

  process = new Process();        
  
  process.StartInfo.FileName = "cmd.exe";
  
  process.StartInfo.WorkingDirectory = @"c:\FFmpegTool\bin";
  
  process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
  
  process.StartInfo.Arguments = "/C ffmpeg.exe";
  
  process.Start();
  
  
  
  process.StartInfo.FileName = "ffmpeg";
  
  process.StartInfo.Arguments = "-re -i test.mkv -q 1 -vcodec libx264 -f mpegts udp://network:port";
  
  process.Start();

  it works but I can’t receive the stream

  why this commnand doesn’t work well when I use it in c# and what’s the different bettwen ranning command in cmd directly or using process class in c#