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• spaces in ffmpeg bash script filename variables

  19 août 2015, par Tandy Freeman

  I am using OS X Yosemite. I want to make a simple bash script that allows me to transcode a video. Everything works well as long as a file is not located in a directory which has spaces.

  Here is my script :

  #!/bin/sh
  
  
  
  ffmpeg -i “$1” -c:v ffv1 -level 3 -g 1 -c:a copy “$1.mkv” 

  Initially, I did not have the double quotes around the variable, but I read some stack overflows that used this as a solution. I’d rather not have to alter the path or add slashes etc. I want to just run :

   ./script.sh filename.mov 

  Here’s the error I get :

  Kierans-iMac:~ bla$ ./firstscript.command "/Users/bla/Desktop/untitled\ folder\ 2/v210.mov.mkv" 
  
  ffmpeg version 2.7.2 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/2.7.2_1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-libfreetype --enable-libfaac --enable-libass --enable-ffplay --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.2_1/include/openjpeg-1.5 ' --enable-nonfree --enable-vda
  
    libavutil      54. 27.100 / 54. 27.100
  
    libavcodec     56. 41.100 / 56. 41.100
  
    libavformat    56. 36.100 / 56. 36.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 16.101 /  5. 16.101
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.100 /  1.  2.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  “/Users/bla/Desktop/untitled\: No such file or directory

• Bash Script For FFMPEG

  24 octobre 2016, par armight29

  trying to write simple script to encode files but keep getting this error msg :

  /usr/bin/cm : line 28 : syntax error near unexpected token

  else'
/usr/bin/cm: line 28:

  else’

  and here is the script called cm :

  #!/bin/bash
  
  echo Filename?
  
  read Filename
  
  echo Enter Target Filesize In Megabytes..
  
  read TargetSize
  
  echo ffmpeg preset?
  
  read PRESET
  
  Duration='ffprobe -i $Filename -show_entries format=duration -v quiet -of csv="p=0"'
  
  Bitrate='($TargetSize*8192)/$Duration'
  
  exiftool -b $Filename -ImageSize
  
  echo WIDTH=?
  
  read WIDTH
  
  echo HEIGHT=?
  
  read HEIGHT
  
  echo Padding Required? Enter 'y' or 'n'
  
  read PADANSWR
  
  if [PADANSWR = 'y'] then
  
  echo X=?
  
  read X
  
  echo Y=?
  
  read Y
  
  ffprobe -show_entries stream=index,codec_type:stream_tags=language -of compact $Filename -v 0 | grep eng
  
  echo ENG AUDIO INDEX?
  
  read ENGAUDIOINDEX
  
  echo ENG SUBS INDEX?
  
  read ENGSUBSINDEX
  
  ffmpeg -i $Filename -strict -2 -c:v libx264 -preset $PRESET  -b:v $Bitrate -vf "padding=width=$WIDTH:height=$HEIGHT:x=$X:y=$Y:color=black" pass 1 -f matroska /dev/null -c:a ac3 -b:a 192k && ffmpeg -i $Filename -strict -2 -c:v libx264 -preset $PRESET  -b:v $Bitrate -vf "padding=width=$WIDTH:height=$HEIGHT:x=$X:y=$Y:color=black" -pass 1 -f matroska ENCODE1.mkv -c:a ac3 -b:a 192k
  
  else
  
      ffmpeg -i $Filename -strict -2 -c:v libx264 -preset $PRESET -b:v $Bitrate -threads 12 -pass 1 -f matroska /dev/null -c:a ac3 -b:a 192k && ffmpeg -i $Filename -strict -2 -c:v libx264 -preset $PRESET -b:v $Bitrate -threads 12 -pass 1 -f matroska ENCODE1.mkv -c:a ac3 -b:a 192k
  
  fi

  just started coding in bash—how long can the lines in a script be or do i need to use the ’\’ character—if i do use the ’\’ character does it need a space after it ? TIA

• ASP.NET : Powershell script finishes after the first ffmpeg call

  24 mars 2014, par sk904861

  The following Powershell script only executes the first ffmpeg call, no matter which one is first. Both the ffmpeg and the powershell processes never finish.

  Param($InputFile, $OutputFile, $Thumbnail, $Sprites)
  
  
  
  $ThumbnailWidth = 120
  
  $ThumbnailHeight = 120
  
  
  
  # Thumbnail
  
  ffmpeg -i $InputFile -f image2 -vframes 1 -filter:v "crop=min(iw\,ih):min(iw\,ih), scale=$($ThumbnailWidth):$($ThumbnailHeight)" -crf 18 "$($Thumbnail)\150x150.png"
  
  
  
  # Poster
  
  ffmpeg -i $InputFile -f image2 -vframes 1 -filter:v "crop=min(iw\,ih):min(iw\,ih), scale=$($PosterWidth):$($PosterHeight)" -crf 18 "$($Thumbnail)\1000x1000.png"

  The script gets called within an ASP.NET application as follows :

  ProcessStartInfo startInfo = new ProcessStartInfo();
  
  startInfo.FileName = "powershell.exe";
  
  startInfo.Arguments = String.Format("-executionpolicy RemoteSigned -file \"{0}\" \"{1}\" \"{2}\" \"{3}\" \"{4}\"", scriptPath, fullPath, videoPath, thumbnailPath, sprites);
  
  startInfo.RedirectStandardOutput = true;
  
  startInfo.RedirectStandardError = true;
  
  startInfo.UseShellExecute = false;
  
  startInfo.CreateNoWindow = true;
  
  Process process = new Process();
  
  process.StartInfo = startInfo;
  
  
  
  process.EnableRaisingEvents = true;
  
  process.Exited += delegate
  
  {
  
       // Do some cleaning up
  
  };
  
  
  
  process.Start();

  Does anyone have a clue, why only the first the two ffmpeg calls is working, while each call seems to be correct ?