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• Build FFMPEG with x264 for Android

  26 mai 2023, par Kage

  I am trying to build FFMPEG with libx264 for Android.

  



  I can successfully build and use FFMPEG for Android but I realized that I need the ability to encode, therefore I am trying to build FFMPEG with x264.

  



  I am using this tutorial to build FFmpeg for Android http://www.roman10.net/how-to-build-ffmpeg-for-android/

  



  When trying to build FFMPEG I get an error :

  



  


  "ERROR : libx264 not found"

  


  



  And in my log it says :

  



  


  "/usr/local/lib/libx264.a : could not read symbols : Archive has no
 index ; run ranlib to add one..."

  


  



  I have the latest versions of both FFMPEG and x264.
I understand that FFMPEG looks for the header and libraries in usr/lib and usr/include, so in order to make it find x264 I use the cflags and ldflags :

  



  

  • —extra-cflags = " -I/usr/local/include "

  


  • —extra-ldflags = " -L/usr/local/lib "

  


  



  I have tried building x264 with many different options that other people on the internet have said that i need. eg. —enable-shared, —enable-static, —disable-pthreads etc.
Some forums say enable this, others say no disable that.

  



  Any help would be much appreciated,
Thanks

  



  EDIT :

  



  If I build FFmpeg with the simplest commands to include libx264 then it works.
ie.

  



  ./configure --enable-gpl --enable-libx264 --extra-cflags="-I/usr/local/include" --extra-ldflags="-L/usr/local/lib" --enable-static --enable-shared


  



  However I need it to work for Android. The script I am using is :

  



  NDK=~/Desktop/android-ndk-r7
PLATFORM=$NDK/platforms/android-8/arch-arm/
PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86
function build_one
{
./configure --target-os=linux \
    --prefix=$PREFIX \
    --enable-cross-compile \
    --enable-shared \
    --enable-static \
    --extra-libs="-lgcc" \
    --arch=arm \
    --cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
    --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
    --nm=$PREBUILT/bin/arm-linux-androideabi-nm \
    --sysroot=$PLATFORM \
    --extra-cflags=" -O3 -fpic -DANDROID -DHAVE_SYS_UIO_H=1 -Dipv6mr_interface=ipv6mr_ifindex -fasm -Wno-psabi -fno-short-enums -fno-strict-aliasing -finline-limit=300 $OPTIMIZE_CFLAGS -I/usr/local/include" \
    --extra-ldflags="-Wl,-rpath-link=$PLATFORM/usr/lib -L $PLATFORM/usr/lib -nostdlib -lc -lm -ldl -llog -L/usr/local/lib " \
    --enable-gpl \
    --enable-libx264 \
    --disable-everything \
    --enable-demuxer=mov \
    --enable-demuxer=h264 \
    --disable-ffplay \
    --enable-protocol=file \
    --enable-avformat \
    --enable-avcodec \
    --enable-decoder=rawvideo \
    --enable-decoder=mjpeg \
    --enable-decoder=h263 \
    --enable-decoder=mpeg4 \
    --enable-decoder=h264 \
    --enable-encoder=mjpeg \
    --enable-encoder=h263 \
    --enable-encoder=mpeg4 \
    --enable-encoder=h264 \
    --enable-parser=h264 \
    --disable-network \
    --enable-zlib \
    --disable-avfilter \
    --disable-avdevice \
    $ADDITIONAL_CONFIGURE_FLAG

make clean
make  -j4 install
$PREBUILT/bin/arm-linux-androideabi-ar d libavcodec/libavcodec.a inverse.o
$PREBUILT/bin/arm-linux-androideabi-ld -rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib  -soname libffmpeg.so -shared -nostdlib  -z,noexecstack -Bsymbolic --whole-archive --no-undefined -o $PREFIX/libffmpeg.so libavcodec/libavcodec.a libavformat/libavformat.a libavutil/libavutil.a libswscale/libswscale.a -lc -lm -lz -ldl -llog  --warn-once  --dynamic-linker=/system/bin/linker $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/libgcc.a
}

CPU=armv7-a
OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=$CPU "
PREFIX=./android/$CPU
ADDITIONAL_CONFIGURE_FLAG=
build_one


  



  I am guessing that some option in my configure command is conflicting with enabling libx264

  



  NOTE : If I remove —enable-libx264 then it works

  


• Build FFMPEG with x264 for Android

  26 mai 2023, par Kage

  I am trying to build FFMPEG with libx264 for Android.

  



  I can successfully build and use FFMPEG for Android but I realized that I need the ability to encode, therefore I am trying to build FFMPEG with x264.

  



  I am using this tutorial to build FFmpeg for Android http://www.roman10.net/how-to-build-ffmpeg-for-android/

  



  When trying to build FFMPEG I get an error :

  



  


  "ERROR : libx264 not found"

  


  



  And in my log it says :

  



  


  "/usr/local/lib/libx264.a : could not read symbols : Archive has no
 index ; run ranlib to add one..."

  


  



  I have the latest versions of both FFMPEG and x264.
I understand that FFMPEG looks for the header and libraries in usr/lib and usr/include, so in order to make it find x264 I use the cflags and ldflags :

  



  

  • —extra-cflags = " -I/usr/local/include "

  


  • —extra-ldflags = " -L/usr/local/lib "

  


  



  I have tried building x264 with many different options that other people on the internet have said that i need. eg. —enable-shared, —enable-static, —disable-pthreads etc.
Some forums say enable this, others say no disable that.

  



  Any help would be much appreciated,
Thanks

  



  EDIT :

  



  If I build FFmpeg with the simplest commands to include libx264 then it works.
ie.

  



  ./configure --enable-gpl --enable-libx264 --extra-cflags="-I/usr/local/include" --extra-ldflags="-L/usr/local/lib" --enable-static --enable-shared


  



  However I need it to work for Android. The script I am using is :

  



  NDK=~/Desktop/android-ndk-r7
PLATFORM=$NDK/platforms/android-8/arch-arm/
PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86
function build_one
{
./configure --target-os=linux \
    --prefix=$PREFIX \
    --enable-cross-compile \
    --enable-shared \
    --enable-static \
    --extra-libs="-lgcc" \
    --arch=arm \
    --cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
    --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
    --nm=$PREBUILT/bin/arm-linux-androideabi-nm \
    --sysroot=$PLATFORM \
    --extra-cflags=" -O3 -fpic -DANDROID -DHAVE_SYS_UIO_H=1 -Dipv6mr_interface=ipv6mr_ifindex -fasm -Wno-psabi -fno-short-enums -fno-strict-aliasing -finline-limit=300 $OPTIMIZE_CFLAGS -I/usr/local/include" \
    --extra-ldflags="-Wl,-rpath-link=$PLATFORM/usr/lib -L $PLATFORM/usr/lib -nostdlib -lc -lm -ldl -llog -L/usr/local/lib " \
    --enable-gpl \
    --enable-libx264 \
    --disable-everything \
    --enable-demuxer=mov \
    --enable-demuxer=h264 \
    --disable-ffplay \
    --enable-protocol=file \
    --enable-avformat \
    --enable-avcodec \
    --enable-decoder=rawvideo \
    --enable-decoder=mjpeg \
    --enable-decoder=h263 \
    --enable-decoder=mpeg4 \
    --enable-decoder=h264 \
    --enable-encoder=mjpeg \
    --enable-encoder=h263 \
    --enable-encoder=mpeg4 \
    --enable-encoder=h264 \
    --enable-parser=h264 \
    --disable-network \
    --enable-zlib \
    --disable-avfilter \
    --disable-avdevice \
    $ADDITIONAL_CONFIGURE_FLAG

make clean
make  -j4 install
$PREBUILT/bin/arm-linux-androideabi-ar d libavcodec/libavcodec.a inverse.o
$PREBUILT/bin/arm-linux-androideabi-ld -rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib  -soname libffmpeg.so -shared -nostdlib  -z,noexecstack -Bsymbolic --whole-archive --no-undefined -o $PREFIX/libffmpeg.so libavcodec/libavcodec.a libavformat/libavformat.a libavutil/libavutil.a libswscale/libswscale.a -lc -lm -lz -ldl -llog  --warn-once  --dynamic-linker=/system/bin/linker $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/libgcc.a
}

CPU=armv7-a
OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=$CPU "
PREFIX=./android/$CPU
ADDITIONAL_CONFIGURE_FLAG=
build_one


  



  I am guessing that some option in my configure command is conflicting with enabling libx264

  



  NOTE : If I remove —enable-libx264 then it works

  


• ffmpeg binary for android not working

  29 juillet 2014, par Abdul Qadir

  I’ve copied the ffmpeg binary provided here in the res/raw folder into my project’s assets folder. Whenever I need to run ffmpeg commands, I copy the binary into data/data/my-package-name/ and run the following command to check if everything works.

  Process process = Runtime.getRuntime().exec(ffmpegBinaryFilePath + " -version");

  I get the output by logging the stream by process.getInputStream(). Everything works as expected. But the binary provided in the project is old (version 0.11.1) and I also need to enable lame library to work with mp3 extension. So I decided to build my own binary. I’ve build using this script and also another script showed here. When I place the build binary into my project’s assets folder. I get no output when I run the code above i.e. the log is empty. I’ve also tried building with this script but it doesn’t create any binary i.e. there is no bin folder when compilation is finished.

  I’ve made ndk related changes to these scripts i.e. changed NDK, PLATFORM and PREBUILT variables (I have ndk10 64bit) and changed --enable-shared --disable-static to --disable-shared --enable-static. Also cleared any references to other libraries in the --extra-cflags and --extra-ldflags. Do I need to make any more changes ? Any help would be appreciated !!

  EDIT :

  here’s the log file of my latest build
  http://justpaste.it/gfeb