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• Building ffmpeg for Android in Windows through cygwin : cannot execute binary file

  22 mai 2012, par Harish

  I'm trying to build ffmpeg for Android in Cygwin and the build script (http://www.roman10.net/how-to-build-ffmpeg-for-android/) is giving me a problem on the below line :

  $PREBUILT/bin/arm-linux-androideabi-ar d libavcodec/libavcodec.a inverse.o

  /home/pxb743/android-ndk-r5b/toolchains/arm-linux-androideabi-4.4.3/prebuilt/lin
  ux-x86/bin/arm-linux-androideabi-gcc : /home/pxb743/android-ndk-r5b/toolchains/ar
  m-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc : cann
  ot execute binary file

  file ./arm-linux-androideabi-ar

  ./arm-linux-androideabi-ar : ELF 32-bit LSB executable, Intel 80386, version 1 (S
  YSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.8, stripped

  Can anyone please help me in identifying where the problem is ? Cygwin environment or NDK version (Tried with several versions) or ffmpeg (I could build ffmpeg for Windows Desktop successfully)

• Does anyone find this useful ? - Compiling FFMPEG on Windows with Cywin and NDK r5 [closed]

  5 avril 2017, par protectedmember

  Does anyone find this information useful in anyway ?

  I’ve been trying to compile this thing for a while now and I know of the numerous posts floating around the internet offering help. I have read and tried most of the suggestions and wanted to colate my success into this single post for others to benefit from.

  Since I don’t have a blog, I thought it wouldn’t hurt to post on here instead.

  I have managed to compile FFMPEG 0.10.3 (Freedom) on Windows 7 (32 bit) using NDK r5 and Cygwin. The steps :

  1 - Download/install Cygwin in the root of your C drive. I’m not going to give instructions on this, it’s simple enough and there are plenty of tutorials on this.

  2 - Download NDK r5 from here and extract to the root of your C drive.

  3 - Download FFMPEG 0.10.3 from here and extract to the root of your C drive.

  4 - Open the file ’configure’ in the root of the FFMPEG directory in a text editor.

  5 - Comment out lines 2073, 2074 and 2075.

  6 - Below 2075, add the following line :

  TMPDIR=c :/cygwin/tmp

  7 - Download this script (thankyou roman10) and place it inside your FFMPEG root directory. Rename the file to

  build_android.sh

  8 - Open the script in a text editor and edit line 17 to read

  c :/android-ndk-r5

  9 - Click start > run and type "bash" (without the speech marks) and press enter.

  10 - Type the following and press enter :

  cd /cygdrive/c/ffmpeg-0.10.3

  11 - Type the following and press enter :

  dos2unix build_andoird.sh

  12 - Type the following and press enter :

  ./build_android.sh

  13 - Sit back and wait... libffmpeg.so will soon appear in your "c :\ffmpeg-0.10.3\android\" directory (where is defined in the bottom of the script from roman10’s blog). The default architecture is armv7-a.

  The script from roman10’s blog will actually compile quite a large shared object (.so) file. The compiler flags can be adjusted to suit your needs in the script from roman10’s blog.

• ffmpeg in matlab on windows

  22 octobre 2015, par Maystro

  Is there a way to run ffmpeg commands in matlab on windows.

  I know on Linux we can use the function system(’...’) to run any command but how can I do it on windows ?

  any idea would be appreciated

  Thanks