FFMPEG on android
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This document provides instructions for compiling FFmpeg for Android. It explains that existing FFmpeg for Android scripts often do not work due to frequent code changes in FFmpeg and Android. It then provides detailed steps for downloading the Android NDK, compiling FFmpeg and its dependencies like x264, and building a FFmpeg binary for Android. The steps include configuring FFmpeg for cross-compilation, enabling various codecs and formats, and linking the final binary.
![6
Script
#!/bin/bash
echo ""
echo " ********** FFmpeg Android Build ********** "
echo ""
NDK=$HOME/android-ndk-r8d
PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86
PLATFORM=$NDK/platforms/android-14/arch-arm
PREFIX=$HOME/FFmpeg.Binaries.Android
FFMPEG_BASE=$HOME/FFmpeg.Build
if [ -d "$FFMPEG_BASE" ]; then
rm -v -r -f $FFMPEG_BASE
fi
if [ -d "$PREFIX" ]; then
rm -v -r -f $PREFIX
fi
mkdir $FFMPEG_BASE
mkdir $PREFIX
# x264 Installation
echo ""
echo " ********** libx264 Installation ********** "
echo ""
cd $FFMPEG_BASE
git clone --depth 1 git://git.videolan.org/x264
cd $FFMPEG_BASE/x264
./configure --prefix=$PREFIX
--enable-static
--enable-pic
--disable-asm
--disable-cli
--host=arm-linux
--cross-prefix=$PREBUILT/bin/arm-linux-androideabi-
--sysroot=$PLATFORM
make
sudo make install
sudo ldconfig](https://image.slidesharecdn.com/ffmpegonandroid-130721050936-phpapp02/85/FFMPEG-on-android-6-320.jpg)
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FFMPEG on android
- 2. 2 The Problem There are many FFMPEG for Android Scripts. Most of them doesn’t work duo to: Frequent changes in FFMPEG Code Changes in Android Tool chain
- 3. 3 Compilation instructions Download the latest NDK 32bit version there are problems when compiling on NDK-64bit Install the NDK on $Home/ (or change the NDK address in the script) Make sure you have root access to change and create in the new directories there might be a need to chmod 777 some of the new directories manually
- 4. 4 Run the bottom script on this page saving it to ffmpeg4android.sh push it to device sdcard and chmod it to run enabled (described below). It is recommended to unmark the git clone line of the FFMPEG From the bin directory push the ffmpeg to the /data folder on the phone: adb push fmpeg /data/ffmpeg Change ffmpeg permissions to run permissions using: adb shell, cd /data, chmod 775 ffmpeg Test ffmpeg on an Android local media file
- 5. 5 Instructions 1) Download the latest NDK 32bit version there are problems when compiling on NDK-64bit 2) Install it on $Home/ (or change the script below) 3) Make sure you have root access to change and create in the new directories there might be a need to chmod 777 some of the new directories manually 4) Run the script below by saving it to ffmpeg4android.sh push it to device sdcard and chmod it to run enabled (described below) 5) From the bin directory push the ffmpeg to the /data folder on the phone: adb push fmpeg /data/ffmpeg 6) Change ffmpeg permissions to run permissions using: adb shell, cd /data, chmod 775 ffmpeg 7) run ffmpeg on a local file
- 6. 6 Script #!/bin/bash echo "" echo " ********** FFmpeg Android Build ********** " echo "" NDK=$HOME/android-ndk-r8d PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86 PLATFORM=$NDK/platforms/android-14/arch-arm PREFIX=$HOME/FFmpeg.Binaries.Android FFMPEG_BASE=$HOME/FFmpeg.Build if [ -d "$FFMPEG_BASE" ]; then rm -v -r -f $FFMPEG_BASE fi if [ -d "$PREFIX" ]; then rm -v -r -f $PREFIX fi mkdir $FFMPEG_BASE mkdir $PREFIX # x264 Installation echo "" echo " ********** libx264 Installation ********** " echo "" cd $FFMPEG_BASE git clone --depth 1 git://git.videolan.org/x264 cd $FFMPEG_BASE/x264 ./configure --prefix=$PREFIX --enable-static --enable-pic --disable-asm --disable-cli --host=arm-linux --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- --sysroot=$PLATFORM make sudo make install sudo ldconfig
- 7. 7 Script-2 #FFmpeg Installation echo "" echo " ********** FFmpeg (Android) Installation ********** " echo "" cd $FFMPEG_BASE git clone --depth 1 git://source.ffmpeg.org/ffmpeg cd $FFMPEG_BASE/ffmpeg ./configure --target-os=linux --prefix=$PREFIX --enable-cross-compile --enable-runtime-cpudetect --disable-asm --arch=arm --cc=$PREBUILT/bin/arm-linux-androideabi-gcc --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- --disable-stripping --nm=$PREBUILT/bin/arm-linux-androideabi-nm --sysroot=$PLATFORM --enable-nonfree --enable-version3 --enable-gpl --disable-doc --enable-avresample --enable-demuxer=rtsp --enable-muxer=rtsp --disable-ffserver --disable-ffprobe
- 8. 8 Script 3--enable-ffmpeg --enable-ffplay --enable-libx264 --enable-encoder=libx264 --enable-decoder=h264 --enable-protocol=rtp --enable-hwaccels --enable-zlib --extra-cflags="-I$PREFIX/include -fPIC -DANDROID -D__thumb__ -mthumb -Wfatal-errors -Wno-deprecated -mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=armv7-a" --extra-ldflags="-L$PREFIX/lib" 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$PLATFORM/usr/lib -L$PREFIX/lib -soname libffmpeg.so -shared -nostdlib - z,noexecstack -Bsymbolic --whole-archive --no-undefined -o $PREFIX/libffmpeg.so libavcodec/libavcodec.a libavfilter/libavfilter.a libavresample/libavresample.a libavformat/libavformat.a libavutil/libavutil.a libswscale/libswscale.a -lc -lm -lz -ldl -llog -lx264 --warn-once --dynamic-linker=/system/bin/linker $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/libgcc.a # rm -v -r -f $FFMPEG_BASE clear echo "" echo "FFmpeg Android Build Successful..." echo "" ls -l -R $PREFIX
- 9. 9 Thank you! Video Expert Lectures on Video / Android / VoIP Android Native Developer More About me: Yossi CohenYossi Cohen [email protected]@gmail.com http://www.mobilevideotech.com +972-545-313092+972-545-313092