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• Compiling FFmpeg staticly using NDK error - Not position independent executable

  27 février 2017, par David Barishev

  I have been trying to compile ffmpeg into a static library in order to use it in my android application, but i couldn’t get it to work.

  Im working with FFmpeg 3.2.4, and ndk r13b, using bash on windows 10(Ubuntu 14.04).

  Here is what i did :

  • I made a stand alone toolchain for x86_64 and api 21 using :
    python make_standalone_toolchain.py --api 21 --arch x86_64 --install-dir {}

  • Made a configuration script :

    ./configure \
    
    --target-os=android                                     \
    
    --arch=x86_64                                              \
    
    --prefix=/home/david/ffmpeg_x86_64_build                          \
    
    --cross-prefix=/home/david/x86_64_toolchain/bin/x86_64-linux-android-\
    
    --sysroot=/home/david/x86_64_toolchain/sysroot                    \
    
    --enable-cross-compile                                  \
    
    --pkg-config-flags="--static"                           \
    
    --enable-ffmpeg                                         \
    
    --disable-ffplay                                        \
    
    --disable-ffprobe                                       \
    
    --disable-ffserver                                      \
    
    --disable-doc                                           \
    
    --disable-htmlpages                                     \
    
    --disable-manpages                                      \
    
    --disable-podpages                                      \
    
    --disable-txtpages                                      \
    
    --extra-cflags="-fPIC"                                  \
    
    --extra-cxxflags="-fPIC"
    
    --disable-shared --enable-static \
    
    --enable-yasm
    
    
    
    make
    
    make install

  It produced an FFmpeg executable, however when i ran it on my API 23 emulator, i got an error message :error: only position independent executables (PIE) are supported.
  Even that i used -fPic

  How can i fix it ? Also i’m not sure about my configuration, there wasn’t up to date sources on how to compile it correctly for every ABI (arm,arm64,x86,x86_64,mips,mips64) that i need for my application.
  I have seen many script, and im not too familiar with compiling native code, so i wasn’t sure what settings i need, for example like C flags and etc.

  To be precise on how i tried to configure FFmpeg :

  • I need a static library
  • I Only need the ffmpeg command line utility
  • I want to compile the library for every ABI i listed above.This configuration tried to compile for x86_64.
  • Running on android of course

  I would greatly appreciate some help on how to configure and compile this correctly.

• Compiling FFmpeg staticly using NDK

  27 février 2017, par David Barishev

  I have been trying to compile ffmpeg into a static library in order to use it in my android application, but i couldn’t get it to work.

  Im working with FFmpeg 3.2.4, and ndk r13b, using bash on windows 10(Ubuntu 14.04).

  Here is what i did :

  • I made a stand alone toolchain for x86_64 and api 21 using :
    python make_standalone_toolchain.py --api 21 --arch x86_64 --install-dir {}

  • Made a configuration script :

    ./configure                                                           \
    
    --target-os=linux                                                    \
    
    --arch=x86                                             \
    
    --prefix=<output path="path">                                                  \
    
    --cross-prefix=<stand alone="alone" toolchain="toolchain" path="path">/bin/x86_64-linux-android-           \
    
    --sysroot=<stand alone="alone" toolchain="toolchain" path="path">/sysroot                                  \
    
    --enable-cross-compile                                               \
    
    --pkg-config-flags="--static"                                        \
    
    --enable-yasm       \
    
    --enable-ffmpeg     \
    
    --disable-ffplay    \
    
    --disable-ffprobe   \
    
    --disable-ffserver  \
    
    --disable-doc                                                          \
    
    --disable-htmlpages                                                    \
    
    --disable-manpages                                                     \
    
    --disable-podpages                                                     \
    
    --disable-txtpages                                                     \
    
    
    
    make install
    
    </stand></stand></output>

  It produced an FFmpeg executable, however when i ran it on my API 23 emulator, i got an error message :error: only position independent executables (PIE) are supported.

  How can i fix it ? Also i’m not sure about my configuration, there wasn’t up to date sources on how to compile it correctly for every ABI (arm,arm64,x86,x86_64,mips,mips64) that i need for my application.
  I have seen many script, and im not too familiar with compiling native code, so i wasn’t sure what settings i need, for example like C flags and etc.

  To be precise on how i tried to configure FFmpeg :

  • I need a static library
  • I Only need the ffmpeg command line utility
  • I want to compile the library for every ABI i listed above.This configuration tried to compile for x86_64.
  • Running on android of course

  I would greatly appreciate some help on how to configure and compile this correctly.

  EDIT

  I tried compiling for x86, on an Ubuntu 16.04 (x86_64) VM, using roughly the same config , and i got a different error.

  I made a standalone toolchain for x86 :
  python make_standalone_toolchain.py --arch x86 --api 19 --install-dir ~/x86_toolchain

  And made this configuration file :

  ./configure \
  
  --target-os=linux                                       \
  
  --arch=x86                                              \
  
  --prefix=~/ffmpeg_x86_build                             \
  
  --cross-prefix=~/x86_toolchain/bin/i686-linux-android-  \
  
  --sysroot=~/x86_toolchain/sysroot                       \
  
  --enable-cross-compile                                  \
  
  --pkg-config-flags="--static"                           \
  
  --enable-yasm                                           \
  
  --enable-ffmpeg                                         \
  
  --disable-ffplay                                        \
  
  --disable-ffprobe                                       \
  
  --disable-ffserver                                      \
  
  --disable-doc                                           \
  
  --disable-htmlpages                                     \
  
  --disable-manpages                                      \
  
  --disable-podpages                                      \
  
  --disable-txtpages                                      \
  
  
  
  make clean
  
  make install

  The error im getting now is :

  ~/x86_toolchain/bin/i686-linux-android-gcc is unable to create an executable file.
  
  C compiler test failed.

  In the log file, it seems like it cant access the compiler, even though he is OK (i tested it with a simple hello world).Also its not a permission problem(Everybody has read write access)

  ~/x86_toolchain/bin/i686-linux-android-gcc -fPIC -c -o /tmp/ffconf.yYKPHtht.o /tmp/ffconf.Nxskyxyb.c
  
  ./configure: 874: ./configure: ~/x86_toolchain/bin/i686-linux-android-gcc: not found
  
  C compiler test failed.

  So i’m clearly doing something wrong.Does anyone know why ? And how should i do it instead ?

• Compiling FFmpeg staticly using NDK error - Not position independent executables executable

  27 février 2017, par David Barishev

  I have been trying to compile ffmpeg into a static library in order to use it in my android application, but i couldn’t get it to work.

  Im working with FFmpeg 3.2.4, and ndk r13b, using bash on windows 10(Ubuntu 14.04).

  Here is what i did :

  • I made a stand alone toolchain for x86_64 and api 21 using :
    python make_standalone_toolchain.py --api 21 --arch x86_64 --install-dir {}

  • Made a configuration script :

    ./configure \
    
    --target-os=android                                     \
    
    --arch=x86_64                                              \
    
    --prefix=/home/david/ffmpeg_x86_64_build                          \
    
    --cross-prefix=/home/david/x86_64_toolchain/bin/x86_64-linux-android-\
    
    --sysroot=/home/david/x86_64_toolchain/sysroot                    \
    
    --enable-cross-compile                                  \
    
    --pkg-config-flags="--static"                           \
    
    --enable-ffmpeg                                         \
    
    --disable-ffplay                                        \
    
    --disable-ffprobe                                       \
    
    --disable-ffserver                                      \
    
    --disable-doc                                           \
    
    --disable-htmlpages                                     \
    
    --disable-manpages                                      \
    
    --disable-podpages                                      \
    
    --disable-txtpages                                      \
    
    --extra-cflags="-fPIC"                                  \
    
    --extra-cxxflags="-fPIC"
    
    --disable-shared --enable-static \
    
    --enable-yasm
    
    
    
    make
    
    make install

  It produced an FFmpeg executable, however when i ran it on my API 23 emulator, i got an error message :error: only position independent executables (PIE) are supported.
  Even that i used -fPic

  How can i fix it ? Also i’m not sure about my configuration, there wasn’t up to date sources on how to compile it correctly for every ABI (arm,arm64,x86,x86_64,mips,mips64) that i need for my application.
  I have seen many script, and im not too familiar with compiling native code, so i wasn’t sure what settings i need, for example like C flags and etc.

  To be precise on how i tried to configure FFmpeg :

  • I need a static library
  • I Only need the ffmpeg command line utility
  • I want to compile the library for every ABI i listed above.This configuration tried to compile for x86_64.
  • Running on android of course

  I would greatly appreciate some help on how to configure and compile this correctly.