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  • Error on building ffmpeg for android using NDK in ubuntu

    17 février 2015, par Alin

    An ffmpeg android for android 2.3+ which allows me to decompress/add watermark/recompress a video file. I need to have it working on all current CPUs.

    What I did so far

    I looked in a lot of sources for guidance. Most of the articles are obsolete or simply not work. Not to mention the whole struggle I went to from installing ubuntu on virtualBox, an OS which I never seen before. The whole java/sdk/ndk install was pretty easy but I had hard times in setting the PATH variables and most importantly WHERE to set them.

    So, here is my structure :
    The default folder path is /home/alin in which I have
    enter image description here

    The PATH is set in etc/profile and I can confirm that it works. I know that it works because running java -version or ndk-build run just fine

    > ANDROID_SDK=/home/alin/android/sdk ANDROID_NDK=/home/alin/android/ndk
    
> JAVA_HOME=/usr/local/java/jdk1.8.0_20
    
> PATH=$PATH:$HOME/bin:$JAVA_HOME/bin:$ANDROID_SDK/platform-tools:$ANDROID_SDK/tools:$ANDROID_NDK
    
> export JAVA_HOME export ANDROID_SDK export ANDROID_NDK export PATH

    I have downloaded the latest sources from ffmpeg.org and saved it in ndk/sources folder, in sources I have created an android_build.sh file as from (http://www.roman10.net/how-to-build-ffmpeg-with-ndk-r9/)

    enter image description here

    #!/bin/bash
    

    
NDK=/home/alin/android/ndk
    
SYSROOT=$NDK/platforms/android-9/arch-arm/
    
TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64
    

    
function build_one
    

    
{
    

    
./configure \
    
    --prefix=$PREFIX \
    
    --enable-shared \
    
    --disable-static \
    
    --disable-doc \
    
    --disable-ffmpeg \
    
    --disable-ffplay \
    
    --disable-ffprobe \
    
    --disable-ffserver \
    
    --disable-avdevice \
    
    --disable-doc \
    
    --disable-symver \
    
    --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
    
    --target-os=linux \
    
    --arch=arm \
    
    --enable-cross-compile \
    
    --sysroot=$SYSROOT \
    
    --extra-cflags="-Os -fpic $ADDI_CFLAGS" \
    
    --extra-ldflags="$ADDI_LDFLAGS" \
    
    $ADDITIONAL_CONFIGURE_FLAG
    

    
make clean
    
make
    
make install
    
}
    

    
CPU=arm
    

    
PREFIX=$(pwd)/android/$CPU 
    

    
ADDI_CFLAGS="-marm"
    

    
build_one

    When running the .sh file I get this :
    enter image description here

    Trying different build.sh sometimes I got different errors... so I have no idea what to do next.

    Please guide me to :

    • be able to build ffmpeg
    • make it compatible with as many devices as possible.

    Thank you.

  • Problems in building ffmpeg for android using android NDK in ubuntu

    3 septembre 2014, par Alin

    An ffmpeg android for android 2.3+ which allows me to decompress/add watermark/recompress a video file. I need to have it working on all current CPUs.

    What I did so far

    I looked in a lot of sources for guidance. Most of the articles are obsolete or simply not work. Not to mention the whole struggle I went to from installing ubuntu on virtualBox, an OS which I never seen before. The whole java/sdk/ndk install was pretty easy but I had hard times in setting the PATH variables and most importantly WHERE to set them.

    So, here is my structure :
    The default folder path is /home/alin in which I have
    enter image description here

    The PATH is set in etc/profile and I can confirm that it works. I know that it works because running java -version or ndk-build run just fine

    > ANDROID_SDK=/home/alin/android/sdk ANDROID_NDK=/home/alin/android/ndk
    
> JAVA_HOME=/usr/local/java/jdk1.8.0_20
    
> PATH=$PATH:$HOME/bin:$JAVA_HOME/bin:$ANDROID_SDK/platform-tools:$ANDROID_SDK/tools:$ANDROID_NDK
    
> export JAVA_HOME export ANDROID_SDK export ANDROID_NDK export PATH

    I have downloaded the latest sources from ffmpeg.org and saved it in ndk/sources folder, in sources I have created an android_build.sh file as from (http://www.roman10.net/how-to-build-ffmpeg-with-ndk-r9/)

    enter image description here

    #!/bin/bash
    

    
NDK=/home/alin/android/ndk
    
SYSROOT=$NDK/platforms/android-9/arch-arm/
    
TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64
    

    
function build_one
    

    
{
    

    
./configure \
    
    --prefix=$PREFIX \
    
    --enable-shared \
    
    --disable-static \
    
    --disable-doc \
    
    --disable-ffmpeg \
    
    --disable-ffplay \
    
    --disable-ffprobe \
    
    --disable-ffserver \
    
    --disable-avdevice \
    
    --disable-doc \
    
    --disable-symver \
    
    --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
    
    --target-os=linux \
    
    --arch=arm \
    
    --enable-cross-compile \
    
    --sysroot=$SYSROOT \
    
    --extra-cflags="-Os -fpic $ADDI_CFLAGS" \
    
    --extra-ldflags="$ADDI_LDFLAGS" \
    
    $ADDITIONAL_CONFIGURE_FLAG
    

    
make clean
    
make
    
make install
    
}
    

    
CPU=arm
    

    
PREFIX=$(pwd)/android/$CPU 
    

    
ADDI_CFLAGS="-marm"
    

    
build_one

    When running the .sh file I get this :
    enter image description here

    Trying different build.sh sometimes I got different errors... so I have no idea what to do next.

    Please guide me to :

    • be able to build ffmpeg
    • make it compatible with as many devices as possible.

    Thank you.

  • osx build ffmpeg for android

    23 novembre 2018, par Allen

    I want to build ffmpeg source code for android platform.

    And i had followed some tutorials, but build failed.

    here are my configs

    1. build_android.sh file

      #!/bin/bash
      
NDK=/Users/***/Library/Android/ndk/android-ndk-r14b
      
SYSROOT=$NDK/platforms/android-19/arch-arm/
      
TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64
      
function build_one
      
{
      
    ./configure 
      
    --prefix=$PREFIX 
      
    --enable-shared 
      
    --disable-static 
      
    --disable-doc 
      
    --disable-ffmpeg 
      
    --disable-ffplay 
      
    --disable-ffprobe 
      
    --disable-ffserver 
      
    --disable-avdevice 
      
    --disable-doc
      
    --disable-symver 
      
    --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- 
      
    --target-os=linux 
      
    --arch=arm 
      
    --enable-cross-compile 
      
    --sysroot=$SYSROOT 
      
    --extra-cflags="-Os -fpic $ADDI_CFLAGS" 
      
    --extra-ldflags="$ADDI_LDFLAGS" 
      
    $ADDITIONAL_CONFIGURE_FLAG
      
    make clean
      
    make
      
    make install
      
}
      
CPU=arm
      
PREFIX=$(pwd)/androidtest/$CPU
      
ADDI_CFLAGS="-marm"
      
build_one

    2. configure file

      I have also changed configure file

    change

    SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
    
LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
    
SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
    
SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

    to

    SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'  
    
LIB_INSTALL_EXTRA_CMD='$$(RANLIB)"$(LIBDIR)/$(LIBNAME)"'  
    
SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'  
    
SLIB_INSTALL_LINKS='$(SLIBNAME)'
    1. console output
    ...
    
INSTALL   doc/examples/demuxing_decoding.c
    
INSTALL   doc/examples/encode_audio.c
    
INSTALL   doc/examples/encode_video.c
    
INSTALL   doc/examples/extract_mvs.c
    
INSTALL   doc/examples/filter_audio.c
    
INSTALL   doc/examples/filtering_audio.c
    
INSTALL   doc/examples/filtering_video.c
    
INSTALL   doc/examples/http_multiclient.c
    
INSTALL   doc/examples/hw_decode.c
    
INSTALL   doc/examples/metadata.c
    
INSTALL   doc/examples/muxing.c
    
INSTALL   doc/examples/qsvdec.c
    
INSTALL   doc/examples/remuxing.c
    
INSTALL   doc/examples/resampling_audio.c
    
INSTALL   doc/examples/scaling_video.c
    
INSTALL   doc/examples/transcode_aac.c
    
INSTALL   doc/examples/transcoding.c
    
INSTALL   doc/examples/vaapi_encode.c
    
INSTALL   doc/examples/vaapi_transcode.c
    
INSTALL   doc/examples/README
    
INSTALL   doc/examples/Makefile
    
INSTALL   libavdevice/libavdevice.a
    
/bin/sh: ranlib/usr/local/lib/libavdevice.a: No such file or directory
    
make: *** [install-libavdevice-static] Error 127
    1. problem

    according to the console output, libavdevice.a not found.

    enter image description here

    but I can find it in the finder

    how to fix /bin/sh: ranlib/usr/local/lib/libavdevice.a: No such file or directory error ?

    i have searched some resolvers for make: *** [install-libavdevice-static] Error 127 but not work for me.

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