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• Replace Special Characters In Batch-File Variable Feeding ffmpeg program

  14 janvier 2019, par whereswaller

  I am attempting to write a batch-file that leverages ffmpeg.exe to convert all files in a folder structure to mp3 format (specifically 128 KBps).

  My batch-file is presently unable to process filenames (constructed by concatenating the %_SOURCE% and %%~F variables) containing certain special characters generating the following errors :

  No such file or directory

  • … ellipsis sign
  • – en dash
  • — em dash
  • − minus sign

  Invalid argument

  • ‘ and ’ curved single quotation marks
  • “ and ” curved double quotation marks

  Invalid argument (yet sometimes passes depending on where symbol is in the filename, for example, seems to work if placed between the n and t of Dont in C:\Users\Test\Documents\Input\Peter Bjorn And John - I Know You Dont Love Me.mp3)

  • - hyphen
  • ! exclamation mark
  • ~ tilde
  • ' non-curved single quotation mark
  • = equals sign
  • + plus sign
  • % percentage sign
  • ( open bracket

  How can I modify my batch-file script so that the %%~F variable escapes these characters correctly ?

  Example current filename input : C:\Users\Test\Documents\Input\Peter Bjorn And John - I Know You Don't Love Me.mp3

  Example desired filename input : C:\Users\Test\Documents\Input\Peter Bjorn And John - I Know You Don"^'"t Love Me.mp3

  Script (see line beginning C:\ffmpeg\bin\ffmpeg.exe) :

  @echo off
  
  setlocal EnableExtensions DisableDelayedExpansion
  
  
  
  rem // Define constants here:
  
  set "_SOURCE=C:\Users\Test\Documents\Input" & rem // (absolute source path)
  
  set "_TARGET=C:\Users\Test\Documents\Output"  & rem // (absolute target path)
  
  set "_PATTERN=*.*" & rem // (pure file pattern for input files)
  
  set "_FILEEXT=.mp3"   & rem // (pure file extension of output files)
  
  
  
  pushd "%_TARGET%" || exit /B 1
  
  for /F "delims=" %%F in ('
  
      cd /D "%_SOURCE%" ^&^& ^(rem/ list but do not copy: ^
  
          ^& xcopy /L /S /Y /I ".\%_PATTERN%" "%_TARGET%" ^
  
          ^| find ".\" ^& rem/ remove summary line;
  
      ^)
  
  ') do (
  
      2> nul mkdir "%%~dpF."
  
  
  
      rem // Set up the correct `ffmpeg` command line here:
  
      set "FFREPORT=file=C\:\\Users\\Test\\Documents\\Output\\ffreport-%%~F.log:level=32"
  
      "C:\ffmpeg\bin\ffmpeg.exe" -report -n -i "%_SOURCE%\%%~F" -vn -c:a libmp3lame -b:a 128k "%%~dpnF%_FILEEXT%"
  
      if not errorlevel 1  if exist "%%~dpnF%_FILEEXT%" del /f /q "%_SOURCE%\%%~F"
  
  
  
  )
  
  popd
  
  
  
  endlocal
  
  pause

• Getting errors compiling ffmpeg

  15 janvier 2024, par Vikram Mahal

  I am compiling ffmpeg for android in windows with cygwin.

  


  I am using-

  


  

  1. android ndk r5

  


  2. ffmpeg-0.10.3

  


  3. cygwin

  


  


  Everything works fine but when i run last command then after few minutes it gives this error-

  


  License : LGPL version 2.1 or later

  


  Creating config.mak and config.h...

  


  libavutil/avconfig.h is unchanged

  


  


  WARNING :
C :/android-ndk-r5-windows/android-ndk-r5//toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/bin/arm-linux-androideabi-pkg-config
not found, library detection may fail.

  


  WARNING : Compiler does not indicate floating-point ABI, guessing soft.

  


  config.log:1 : *** multiple target patterns. Stop.

  


  config.log:1 : *** multiple target patterns. Stop.

  


  C :\android-ndk-r5-windows\android-ndk-r5\toolchains\arm-linux-androideabi-4.4.3\prebuilt\windows\bin\arm-linux-androideabi-ld.exe :
cannot open output file ./android/armv7-a/libffmpeg.so : No such file
or directory

  


  


  please help me out to overcome this problem.

  


  thanks.

  


• getting error while compiling ffmpeg

  30 mars 2013, par Vikram Mahal

  I am compiling ffmpeg for android in windows with cygwin.

  I am using-
  1. android ndk r5
  2. ffmpeg-0.10.3
  3. cygwin

  Everthing works fine but when i run last command then after few minutes it gives this error-

  License : LGPL version 2.1 or later

  Creating config.mak and config.h...

  libavutil/avconfig.h is unchanged

  WARNING : C :/android-ndk-r5-windows/android-ndk-r5//toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/bin/arm-linux-androideabi-pkg-config not found, library detection may fail.

  WARNING : Compiler does not indicate floating-point ABI, guessing soft.

  config.log:1 : * multiple target patterns. Stop.

  config.log:1 : * multiple target patterns. Stop.

  C :\android-ndk-r5-windows\android-ndk-r5\toolchains\arm-linux-androideabi-4.4.3\prebuilt\windows\bin\arm-linux-androideabi-ld.exe : cannot open output file ./android/armv7-a/libffmpeg.so : No such file or directory

  please help me out to overcome this problem.

  thanks.