1.新建android项目,勾选include C++ support
2.勾选Exceptions Support (-fexceptions)、Runtime Type Information Support (-frtti)
3.Finish后的项目目录
4.libs下创建armeabi目录,拷贝ffmpeg编译后的so文件到armeabi下,拷贝include文件到libs目录下
5.app下的build.gradle修改如下:
6.CMakeLists.txt修改如下:
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cmake_minimum_required(VERSION 3.4.1)
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add_library( native-lib
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SHARED
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src/main/cpp/native-lib.cpp
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)
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include_directories(libs/include)
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set(DIR ../../../../libs)
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MESSAGE("打印")
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MESSAGE("路径 " ${DIR})
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add_library(avcodec-56
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SHARED
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IMPORTED)
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set_target_properties(avcodec-56
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PROPERTIES IMPORTED_LOCATION
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${DIR}/armeabi/libavcodec-56.so)
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add_library(avdevice-56
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SHARED
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IMPORTED)
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set_target_properties(avdevice-56
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PROPERTIES IMPORTED_LOCATION
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${DIR}/armeabi/libavdevice-56.so)
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add_library(avformat-56
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SHARED
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IMPORTED)
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set_target_properties(avformat-56
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PROPERTIES IMPORTED_LOCATION
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${DIR}/armeabi/libavformat-56.so)
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add_library(avutil-54
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SHARED
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IMPORTED)
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set_target_properties(avutil-54
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PROPERTIES IMPORTED_LOCATION
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${DIR}/armeabi/libavutil-54.so)
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add_library(swresample-1
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SHARED
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IMPORTED)
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set_target_properties(swresample-1
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PROPERTIES IMPORTED_LOCATION
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${DIR}/armeabi/libswresample-1.so)
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add_library(swscale-3
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SHARED
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IMPORTED)
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set_target_properties(swscale-3
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PROPERTIES IMPORTED_LOCATION
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${DIR}/armeabi/libswscale-3.so)
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add_library(avfilter-5
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SHARED
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IMPORTED)
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set_target_properties(avfilter-5
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PROPERTIES IMPORTED_LOCATION
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${DIR}/armeabi/libavfilter-5.so)
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find_library( log-lib
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log )
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target_link_libraries( native-lib
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avcodec-56
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avdevice-56
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avformat-56
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avutil-54
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swresample-1
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swscale-3
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-landroid # Add this.
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${log-lib} )
7.cpp目录下新建native-lib.h头文件,native-lib.cpp是默认生成的
native-lib.h
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//
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// Created by ygdx_lk on 17/11/1.
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//
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#ifndef FFMPEG_NATIVE_LIB_H
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#define FFMPEG_NATIVE_LIB_H
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#include <jni.h>
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#include <string>
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#include <android/log.h>
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extern "C" {
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//编码
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#include "libavcodec/avcodec.h"
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//封装格式处理
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#include "libavformat/avformat.h"
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//像素处理
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#include "libswscale/swscale.h"
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#include <android/native_window_jni.h>
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#include <unistd.h>
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JNIEXPORT jstring JNICALL Java_com_test_ffmpeg_MainActivity_stringFromJNI(JNIEnv *env, jobject /* this */);
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}
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#define LOGI(FORMAT, ...) __android_log_print(ANDROID_LOG_INFO,"jason",FORMAT,##__VA_ARGS__);
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#define LOGE(FORMAT, ...) __android_log_print(ANDROID_LOG_ERROR,"jason",FORMAT,##__VA_ARGS__);
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#endif //FFMPEG_NATIVE_LIB_H
native-lib.cpp
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#include "native-lib.h"
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jstring Java_com_test_ffmpeg_MainActivity_stringFromJNI(JNIEnv *env, jobject /* this */) {
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std::string hello = "Hello from C++";
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av_register_all();
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return env->NewStringUTF(hello.c_str());
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}
8.MainActivity中配置如下:
9.运行程序,如果可以正常运行,说明ffmpeg的配置已经ok。