FFmpeg ndkクロスコンパイルandroidに統合
9514 ワード
1.ソフトウェアバージョン
1.1 ndk android-ndk-r15c
1.2 ffmepg ffmpeg-4.0.5.tar.bz2
1.3 x264 x264-stable.tar.gz
2.コンパイルx 264静的ライブラリ
tar -zxvf x264-stable.tar.gz
mv x264-stable x264
vi build.sh
#!/bin/bash NDK=/home/sheng/ndk/android-ndk-r15c
configure() { CPU=$1 PREFIX=$(pwd)/android/$CPU HOST="" CROSS_PREFIX="" SYSROOT="" if [ "$CPU"== "armv7-a"] then HOST=arm-linux SYSROOT=$NDK/platforms/android-21/arch-arm/ CROSS_PREFIX=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi- else HOST=aarch64-linux SYSROOT=$NDK/platforms/android-21/arch-arm64/ CROSS_PREFIX=$NDK/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android- fi ./configure\ --prefix=$PREFIX\ --host=$HOST\ --enable-pic\ --enable-static\ --enable-neon\ --extra-cflags="-fPIE -pie"\ --extra-ldflags="-fPIE -pie"\ --cross-prefix=$CROSS_PREFIX\ --sysroot=$SYSROOT }
build() { make clean cpu=$1 echo "build $cpu"
configure $cpu #-j make -j4 make install }
build arm64 build armv7-a
sudo chmod 777 build.sh
./build.sh
3.ffmpeg静的ライブラリのコンパイル
tar -jxvf ffmpeg-4.0.5.tar.bz2
cp ../x264 ffmpeg-4.0.5/x264
vi build.sh
#!/bin/bash NDK=/home/sheng/ndk/android-ndk-r15c ADDI_CFLAGS="-fPIE -pie"ADDI_LDFLAGS="-fPIE -pie"
configure() { CPU=$1 PREFIX=$(pwd)/android/$CPU x264=$(pwd)/x264/android/$CPU HOST="" CROSS_PREFIX="" SYSROOT="" ARCH="" if [ "$CPU"== "armv7-a"] then ARCH="arm" HOST=arm-linux SYSROOT=$NDK/platforms/android-21/arch-arm/ CROSS_PREFIX=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi- else ARCH="aarch64" HOST=aarch64-linux SYSROOT=$NDK/platforms/android-21/arch-arm64/ CROSS_PREFIX=$NDK/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android- fi ./configure\ --prefix=$PREFIX\ --enable-small\ --disable-programs\ --disable-encoders\ --disable-muxers\ --disable-filters\ --disable-decoders\ --disable-avdevice\ --disable-doc\ --disable-ffplay\ --disable-network\ --disable-doc\ --disable-symver\ --enable-neon\ --enable-libx264\ --enable-gpl\ --enable-pic\ --enable-jni\ --enable-pthreads\ --enable-mediacodec\ --enable-encoder=aac\ --enable-encoder=gif\ --enable-encoder=libopenjpeg\ --enable-encoder=libmp3lame\ --enable-encoder=libwavpack\ --enable-encoder=libx264\ --enable-encoder=mpeg4\ --enable-encoder=pcm_s16le\ --enable-encoder=png\ --enable-encoder=srt\ --enable-encoder=subrip\ --enable-encoder=yuv4\ --enable-encoder=text\ --enable-decoder=aac\ --enable-decoder=aac_latm\ --enable-decoder=libopenjpeg\ --enable-decoder=mp3\ --enable-decoder=mpeg4_mediacodec\ --enable-decoder=pcm_s16le\ --enable-decoder=flac\ --enable-decoder=flv\ --enable-decoder=gif\ --enable-decoder=png\ --enable-decoder=srt\ --enable-decoder=xsub\ --enable-decoder=yuv4\ --enable-decoder=vp8_mediacodec\ --enable-decoder=h264_mediacodec\ --enable-decoder=hevc_mediacodec\ --enable-hwaccel=h264_mediacodec\ --enable-hwaccel=mpeg4_mediacodec\ --enable-ffmpeg\ --enable-bsf=aac_adtstoasc\ --enable-bsf=h264_mp4toannexb\ --enable-bsf=hevc_mp4toannexb\ --enable-bsf=mpeg4_unpack_bframes\ --enable-cross-compile\ --cross-prefix=$CROSS_PREFIX\ --disable-shared\ --enable-static\ --target-os=android\ --arch=$ARCH\ --sysroot=$SYSROOT\ --extra-cflags="-I$x264/include $ADDI_CFLAGS"\ --extra-ldflags="-L$x264/lib"}
build() { make clean cpu=$1 echo "build $cpu"
configure $cpu make -j4 make install }
build arm64 build armv7-a
sudo chmod 777 build.sh
./build.sh
4.Windowsで現在のディレクトリを開いてandroid studioプロジェクトにコピーする
explorer.exe .
4.1コピーffmpeg include
/ffmpeg-4.0.5/android/arm64/include
\app\src\main\cpp\include
4.2コピーffmpeg a
/ffmpeg-4.0.5/android/arm64/lib
\app\src\main\cpp\libs
4.3 appのbuildを修正する.gradle
4.5 appのCMakeListsを修正する.txt
4.6 cppテスト呼び出しの変更に成功
参考『FFmpegワンタッチコンパイルAndroid arm 64ビットと32ビット共有ライブラリ(armeabi-v 7 a arm 64-v 8 a)』
1.1 ndk android-ndk-r15c
1.2 ffmepg ffmpeg-4.0.5.tar.bz2
1.3 x264 x264-stable.tar.gz
2.コンパイルx 264静的ライブラリ
tar -zxvf x264-stable.tar.gz
mv x264-stable x264
vi build.sh
#!/bin/bash NDK=/home/sheng/ndk/android-ndk-r15c
configure() { CPU=$1 PREFIX=$(pwd)/android/$CPU HOST="" CROSS_PREFIX="" SYSROOT="" if [ "$CPU"== "armv7-a"] then HOST=arm-linux SYSROOT=$NDK/platforms/android-21/arch-arm/ CROSS_PREFIX=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi- else HOST=aarch64-linux SYSROOT=$NDK/platforms/android-21/arch-arm64/ CROSS_PREFIX=$NDK/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android- fi ./configure\ --prefix=$PREFIX\ --host=$HOST\ --enable-pic\ --enable-static\ --enable-neon\ --extra-cflags="-fPIE -pie"\ --extra-ldflags="-fPIE -pie"\ --cross-prefix=$CROSS_PREFIX\ --sysroot=$SYSROOT }
build() { make clean cpu=$1 echo "build $cpu"
configure $cpu #-j make -j4 make install }
build arm64 build armv7-a
sudo chmod 777 build.sh
./build.sh
3.ffmpeg静的ライブラリのコンパイル
tar -jxvf ffmpeg-4.0.5.tar.bz2
cp ../x264 ffmpeg-4.0.5/x264
vi build.sh
#!/bin/bash NDK=/home/sheng/ndk/android-ndk-r15c ADDI_CFLAGS="-fPIE -pie"ADDI_LDFLAGS="-fPIE -pie"
configure() { CPU=$1 PREFIX=$(pwd)/android/$CPU x264=$(pwd)/x264/android/$CPU HOST="" CROSS_PREFIX="" SYSROOT="" ARCH="" if [ "$CPU"== "armv7-a"] then ARCH="arm" HOST=arm-linux SYSROOT=$NDK/platforms/android-21/arch-arm/ CROSS_PREFIX=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi- else ARCH="aarch64" HOST=aarch64-linux SYSROOT=$NDK/platforms/android-21/arch-arm64/ CROSS_PREFIX=$NDK/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android- fi ./configure\ --prefix=$PREFIX\ --enable-small\ --disable-programs\ --disable-encoders\ --disable-muxers\ --disable-filters\ --disable-decoders\ --disable-avdevice\ --disable-doc\ --disable-ffplay\ --disable-network\ --disable-doc\ --disable-symver\ --enable-neon\ --enable-libx264\ --enable-gpl\ --enable-pic\ --enable-jni\ --enable-pthreads\ --enable-mediacodec\ --enable-encoder=aac\ --enable-encoder=gif\ --enable-encoder=libopenjpeg\ --enable-encoder=libmp3lame\ --enable-encoder=libwavpack\ --enable-encoder=libx264\ --enable-encoder=mpeg4\ --enable-encoder=pcm_s16le\ --enable-encoder=png\ --enable-encoder=srt\ --enable-encoder=subrip\ --enable-encoder=yuv4\ --enable-encoder=text\ --enable-decoder=aac\ --enable-decoder=aac_latm\ --enable-decoder=libopenjpeg\ --enable-decoder=mp3\ --enable-decoder=mpeg4_mediacodec\ --enable-decoder=pcm_s16le\ --enable-decoder=flac\ --enable-decoder=flv\ --enable-decoder=gif\ --enable-decoder=png\ --enable-decoder=srt\ --enable-decoder=xsub\ --enable-decoder=yuv4\ --enable-decoder=vp8_mediacodec\ --enable-decoder=h264_mediacodec\ --enable-decoder=hevc_mediacodec\ --enable-hwaccel=h264_mediacodec\ --enable-hwaccel=mpeg4_mediacodec\ --enable-ffmpeg\ --enable-bsf=aac_adtstoasc\ --enable-bsf=h264_mp4toannexb\ --enable-bsf=hevc_mp4toannexb\ --enable-bsf=mpeg4_unpack_bframes\ --enable-cross-compile\ --cross-prefix=$CROSS_PREFIX\ --disable-shared\ --enable-static\ --target-os=android\ --arch=$ARCH\ --sysroot=$SYSROOT\ --extra-cflags="-I$x264/include $ADDI_CFLAGS"\ --extra-ldflags="-L$x264/lib"}
build() { make clean cpu=$1 echo "build $cpu"
configure $cpu make -j4 make install }
build arm64 build armv7-a
sudo chmod 777 build.sh
./build.sh
4.Windowsで現在のディレクトリを開いてandroid studioプロジェクトにコピーする
explorer.exe .
4.1コピーffmpeg include
/ffmpeg-4.0.5/android/arm64/include
\app\src\main\cpp\include
4.2コピーffmpeg a
/ffmpeg-4.0.5/android/arm64/lib
\app\src\main\cpp\libs
4.3 appのbuildを修正する.gradle
externalNativeBuild {
cmake {
cppFlags "-std=c++11"
abiFilters "armeabi-v7a" , "arm64-v8a"
}
}4.5 appのCMakeListsを修正する.txt
cmake_minimum_required(VERSION 3.4.1)
include_directories(${CMAKE_SOURCE_DIR}/include)
add_library(
native-lib
SHARED
native-lib.cpp)
add_library(static-lib
STATIC
IMPORTED
)
set_target_properties(static-lib
PROPERTIES IMPORTED_LOCATION
${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libstatic-lib.a )
#add libavcodec
add_library(libavcodec
STATIC
IMPORTED
)
SET_TARGET_PROPERTIES(
libavcodec
PROPERTIES IMPORTED_LOCATION
${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libavcodec.a
)
#add libavfilter
add_library(libavfilter
STATIC
IMPORTED
)
SET_TARGET_PROPERTIES(
libavfilter
PROPERTIES IMPORTED_LOCATION
${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libavfilter.a
)
#add libavformat
add_library(libavformat
STATIC
IMPORTED
)
SET_TARGET_PROPERTIES(
libavformat
PROPERTIES IMPORTED_LOCATION
${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libavformat.a
)
#add libavutil
add_library(libavutil
STATIC
IMPORTED
)
SET_TARGET_PROPERTIES(
libavutil
PROPERTIES IMPORTED_LOCATION
${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libavutil.a
)
#add libpostproc
add_library(libpostproc
STATIC
IMPORTED
)
SET_TARGET_PROPERTIES(
libpostproc
PROPERTIES IMPORTED_LOCATION
${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libpostproc.a
)
#add libswresample
add_library(libswresample
STATIC
IMPORTED
)
SET_TARGET_PROPERTIES(
libswresample
PROPERTIES IMPORTED_LOCATION
${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libswresample.a
)
#add libswscale
add_library(libswscale
STATIC
IMPORTED
)
SET_TARGET_PROPERTIES(
libswscale
PROPERTIES IMPORTED_LOCATION
${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libswscale.a
)
find_library(
log-lib
log)
target_link_libraries(
native-lib
static-lib
libavcodec
libswscale
libswresample
libpostproc
libavutil
libavformat
libavfilter
${log-lib})4.6 cppテスト呼び出しの変更に成功
#include
#include
#include
#include "static.h"
#define LOG_TAG "native-lib"
#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)
extern "C"{
#include "include/libavutil/avutil.h"
}
extern "C" JNIEXPORT jstring JNICALL
Java_com_jbgf_naivesotest_MainActivity_stringFromJNI(
JNIEnv *env,
jobject /* this */) {
std::string hello = "Hello from C++";
//--------------------- --------------------
int x = 0;
x = apple();
LOGI("x = %d", x);
//----------------------------------------------
return env->NewStringUTF(av_version_info());
}
extern "C"
JNIEXPORT jbyteArray JNICALL
Java_com_jbgf_naivesotest_MainActivity_bytesFromJNI(JNIEnv *env, jobject thiz) {
jbyte byteA[8];
byteA[0] = 1;
byteA[1] = 1;
byteA[2] = 1;
byteA[3] = 1;
byteA[4] = 1;
byteA[5] = 1;
byteA[6] = 1;
byteA[7] = 1;
jbyteArray jByteArray= env->NewByteArray(8);
env->SetByteArrayRegion(jByteArray,0,8,byteA);
return jByteArray;
}
extern "C"
JNIEXPORT jbyteArray JNICALL
Java_com_jbgf_naivesotest_MainActivity_bytesFromJNI2(JNIEnv *env, jobject thiz,
jbyteArray byte_frame) {
//1.
jbyte *c_array = env->GetByteArrayElements(byte_frame,JNI_FALSE);
int arr_len = env->GetArrayLength(byte_frame);
//2. java
env->ReleaseByteArrayElements(byte_frame, c_array, 0);
//3.
for(int i=0 ; i< arr_len;i++)
{
c_array[i] = c_array[i] + 1;
LOGI("123");
// __android_log_print()
}
//4.
jbyteArray jbyteArray1 = env->NewByteArray(arr_len);
env->SetByteArrayRegion(jbyteArray1, 0, arr_len, c_array);
return jbyteArray1;
} 参考『FFmpegワンタッチコンパイルAndroid arm 64ビットと32ビット共有ライブラリ(armeabi-v 7 a arm 64-v 8 a)』