ffmpeg集成到androidStudio

1.把我们需要的so库及include copy进来整个include包含文件夹及里面的内容

修改项目的build.gradle文件

defaultConfig {applicationId "com.ican.ffmpegdemo1"minSdkVersion 15targetSdkVersion 28versionCode 1versionName "1.0"testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"//add startsourceSets {main {jniLibs.srcDirs = ['libs']}}externalNativeBuild {cmake {cppFlags "-frtti -fexceptions"abiFilters 'armeabi'}}//add end}

修改CMakeLists.txt文件

cmake_minimum_required(VERSION 3.4.1)
add_library( native-libSHAREDsrc/main/cpp/native-lib.cpp)find_library( log-liblog )
include_directories(libs/include)
set(DIR ../../../../libs)
add_library(avcodec-56SHAREDIMPORTED)
set_target_properties(avcodec-56PROPERTIES IMPORTED_LOCATION${DIR}/armeabi/libavcodec-56.so)
add_library(avdevice-56SHAREDIMPORTED)
set_target_properties(avdevice-56PROPERTIES IMPORTED_LOCATION${DIR}/armeabi/libavdevice-56.so)
add_library(avformat-56SHAREDIMPORTED)
set_target_properties(avformat-56PROPERTIES IMPORTED_LOCATION${DIR}/armeabi/libavformat-56.so)
add_library(avutil-54SHAREDIMPORTED)
set_target_properties(avutil-54PROPERTIES IMPORTED_LOCATION${DIR}/armeabi/libavutil-54.so)
add_library(postproc-53SHAREDIMPORTED)
set_target_properties(postproc-53PROPERTIES IMPORTED_LOCATION${DIR}/armeabi/libpostproc-53.so)add_library(swresample-1SHAREDIMPORTED)set_target_properties(swresample-1PROPERTIES IMPORTED_LOCATION${DIR}/armeabi/libswresample-1.so)add_library(swscale-3SHAREDIMPORTED)set_target_properties(swscale-3PROPERTIES IMPORTED_LOCATION${DIR}/armeabi/libswscale-3.so)add_library(avfilter-5SHAREDIMPORTED)set_target_properties(avfilter-5PROPERTIES IMPORTED_LOCATION${DIR}/armeabi/libavfilter-5.so)
target_link_libraries( native-libavcodec-56avdevice-56avformat-56avutil-54postproc-53swresample-1swscale-3avfilter-5${log-lib} )

加载库

public class MainActivity extends AppCompatActivity {// Used to load the 'native-lib' library on application startup.static{System.loadLibrary("avcodec-56");System.loadLibrary("avdevice-56");System.loadLibrary("avfilter-5");System.loadLibrary("avformat-56");System.loadLibrary("avutil-54");System.loadLibrary("postproc-53");System.loadLibrary("swresample-1");System.loadLibrary("swscale-3");System.loadLibrary("native-lib");}@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);// Example of a call to a native methodTextView tv = (TextView) findViewById(R.id.sample_text);tv.setText(stringFromJNI());}/*** A native method that is implemented by the 'native-lib' native library,* which is packaged with this application.*/public native String stringFromJNI();
}

测试ffmpeg

#include <jni.h>
#include <string>
extern "C"{
//编码
#include "libavcodec/avcodec.h"
//封装格式处理
#include "libavformat/avformat.h"
//像素处理
#include "libswscale/swscale.h"
}
extern "C" JNIEXPORT jstringJNICALL
Java_com_ican_ffmpegdemo1_MainActivity_stringFromJNI(JNIEnv *env,jobject /* this */) {std::string hello = "Hello from C++";av_register_all();return env->NewStringUTF(hello.c_str());
}

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