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• makedef: Extend the script for use with mingw tools as well

  24 August 2017, by Martin Storsjö

  makedef: Extend the script for use with mingw tools as well
  This is invoked by setting the NM and AR variables to the names of
  
  those specific tools. The ARCH variable also needs to be provided,
  
  to choose the symbol prefix (nm doesn’t provide any option that
  
  dumps the architecture easily).
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] compat/windows/makedef

• Error while concating mkv files using ffmpeg in cygwin based shell script

  21 March 2016, by rishi007bansod

  I have written cygwin based shell script to concate 2 .mkv files as below,

  #!/bin/sh
  
  ffmpeg -f concat -i concat.txt -codec copy out.mkv

  concat.txt contains path to 2 mkv files to be concatenated

  file '../temp/1'
  
  file '../temp/2'

  when I run script from cygwin terminal I get following error

  Rishi@Rishikesh /cygdrive/i/video/Interface_code/Testing_function/bin
  
  $ . script.sh
  
  ffmpeg version 2.5.2 Copyright (c) 2000-2014 the FFmpeg developers
  
  built on Dec 30 2014 17:13:24 with gcc 4.9.2 (GCC)
  
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-    avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --  enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
  
  libavutil      54. 15.100 / 54. 15.100
  
  libavcodec     56. 13.100 / 56. 13.100
  
  libavformat    56. 15.102 / 56. 15.102
  
  libavdevice    56.  3.100 / 56.  3.100
  
  libavfilter     5.  2.103 /  5.  2.103
  
  libswscale      3.  1.101 /  3.  1.101
  
  libswresample   1.  1.100 /  1.  1.100
  
  libpostproc    53.  3.100 / 53.  3.100
  
  Guessed Channel Layout for  Input Stream #0.1 : stereo
  
  Input #0, concat, from 'concat.txt':
  
  Duration: N/A, start: 0.000000, bitrate: 1536 kb/s
  
  Stream #0:0: Video: h264 (High), yuv420p, 720x576 [SAR 1:1 DAR 5:4], 25 fps,     25 tbr, 1k tbn, 50 tbc
  
  Stream #0:1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
  
  'NULL @ 04780280] Unable to find a suitable output format for 'out.mkv
  
  : Invalid argument

  another thing to add, if I run this command from cygwin terminal directly(instead of calling it through script) it runs correctly and creates concatenated output .mkv file

• how to write a batch script to run two different commands through multiple subdirectories?

  26 January 2021, by alsoftie000

  i'm attempting to put together a script that can run through multiple subdirectories and run commands on the files within them. the directory structure looks something like this:

  


  \working directory
    \subdirectory 1
        \subsubdirectory 1
            \left.wav
            \right.wav
            \middle.wav
        \subsubdirectory 2
            \left.wav
            \right.wav
            \middle.wav
            \backing.wav
            \guitar.wav
        \subsubdirectory 3
            \left.wav
            \right.wav
            \middle.wav
    \subdirectory 2
        \subsubdirectory 1
            \left.wav
            \right.wav
            \middle.wav
            \backing.wav
            \guitar.wav
        \subsubdirectory 2
            \left.wav
            \right.wav
            \middle.wav
        \subsubdirectory 3
            \left.wav
            \right.wav
            \middle.wav
            \backing.wav
            \guitar.wav


  


  for my script, i want it so that for directories that only have 3 files in them, it'll run this command:
ffmpeg -vn -i left.wav -i middle.wav -i right.wav -filter_complex "[0]adelay=0|0,volume=3[a];[1]adelay=0|0,volume=3[b];[2]adelay=0|0,volume=3[c];[a][b][c]amix=inputs=3:dropout_transition=0" output.flac

  


  and then for the directories with 5 files, it'll run ffmpeg -vn -i left.wav -i middle.wav -i right.wav -i guitar.wav -i backing.wav -filter_complex "[0]adelay=0|0,volume=5[a];[1]adelay=0|0,volume=5[b];[2]adelay=0|0,volume=5[c];[3]adelay=0|0,volume=5[d];[4]adelay=0|0,volume=5[e];[a][b][c][d][e]amix=inputs=5:dropout_transition=0" output.flac

  


  is there an easy way to do this (assuming what i'm trying to do is even possible?