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• "Droplet" batch script - filenames containing ampersands

  16 août 2014, par stephenwade

  I’m trying to create a batch file that can have other files dropped onto it. Specifically, I’m using ffmpeg to edit audio files produced by a handheld voice recorder. The problem is when using filenames with ampersands (&). Even when quoting the input, anything after the & is dropped off, but only when files are dropped onto it ; if the filename input is typed on the command line, the script works fine. Before the cmd window closes, I briefly see the rest of the filename with an error saying it is not recognized as a valid command.

  Here’s my script :

  rem Change to drive and directory of input file
  % d1
  cd % p1
  rem ffmpeg : mix to one channel, double the volume
  
  %HOMEDRIVE%%HOMEPATH%\ffmpeg.exe -i "% nx1" -ac 1 -vol 1024 "% n1 fixed% x1"
  pause
  

  Here’s what appears on the command line, after dropping "ch17&18.mp3" :

  C :\Users\computergeeksjw\Desktop>C :\Users\computergeeksjw\ffmpeg.exe -i "ch17" -ac 1 -vol 1024 "ch17 fixed"
  [...]
  ch17 : No such file or directory
  

  In case it matters : I’m using the Windows 8 Developer Preview. Is this causing my problem ? Does the same error occur on Windows 7 or earlier ?

• Convert SWF file to FLV with FFMPEG & getting error "could not find codec parameters"

  30 mars 2013, par Ritesh

  Hi I am trying to convert SWF file to FLV, but i am getting same eror

  C:\Users\Administrator>C:/ffmpeg/ffmpeg.exe -i C:/xampplite/htdocs/ffmpeg/1.swf \
  
   C:/xampplite/htdocs/ffmpeg/file1.flv 
  
  
  
  FFmpeg version SVN-r16573, Copyright (c) 2000-2009 Fabrice Bellard, et al. 
  
  configuration: --extra-cflags=-fno-common --enable-memalign-hack --enable-pthreads 
  
  --enable-libmp3lame --enable-libxvid --enable-libvorbis --enable-libtheora 
  
  --enable-libspeex --enable-libfaac --enable-libgsm --enable-libx264 
  
  --enable-libschroedinger --enable-avisynth --enable-swscale --enable-gpl 
  
    libavutil 49.12. 0 / 49.12. 0 
  
    libavcodec 52.10. 0 / 52.10. 0 
  
    libavformat 52.23. 1 / 52.23. 1 
  
    libavdevice 52. 1. 0 / 52. 1. 0 
  
    libswscale 0. 6. 1 / 0. 6. 1 
  
  built on Jan 13 2009 02:57:09, gcc: 4.2.4 
  
  C:/xampplite/htdocs/ffmpeg/1.swf: could not find codec parameters

  Please solve this problem, what i am doing wrong ??

• ffmpeg for a android (using tutorial : "ffmpeg and Android.mk")

  7 avril 2016, par Matthias

  I am trying to compile ffmpeg for a android. I have found several posts on this theme but non of these seems to work. If tried to build ffmpeg like it is posted on [1]. Did anybody successfully compile ffmpeg using theses tutorial ?
  I am not sure how to realize step 4 to 5.

  STEP4 : Configuring ...

  STEP5 : cd to your NDK root dir, type make TARGET_ARCH=arm APP=ffmpeg-org

  It seems to me that building an application like it is explained in the tutorial in step 5 need some previous steps. Unfortunately I have no app in the folder to make. I am using the current android ndk release 3 and checked out the actual ffmpeg releases from [3] and [4]. I am thankful for every advice.

  [1] http://slworkthings.wordpress.com/
  [2] http://gitorious.org/ olvaffe/ffmpeg/ffmpeg-android
  [3] http://ffmpeg.org/download.html