(创建于2017/12/30)

1.编写native

package org.fmod.example;public class EffectUtils {//音效的类型public static final int MODE_NORMAL = 0;public static final int MODE_LUOLI = 1;public static final int MODE_DASHU = 2;public static final int MODE_JINGSONG = 3;public static final int MODE_GAOGUAI = 4;public static final int MODE_KONGLING = 5;/*** 音效处理* @param path* @param type*/public native static void fix(String path,int type);static{System.loadLibrary("fmodL");System.loadLibrary("fmod");System.loadLibrary("qq_voice");}
}

2.进入src目录下，使用命令行生成头文件

javah 包名+类名

3.创建项目根目录下jni文件夹，将头文件拷贝进去
4.下载fmod源码，复制api中lowlevel中的inc中的头文件到jni目录下
5.复制fmod jar包到根目录下libs文件夹并添加依赖
6.复制需要的api平台的so文件到jni目录下
7.修改报错的地方，比如头文件的路径等问题
8.Android Tools -> Add native support 添加本地支持（在此之前，确认你的项目中已经配置了ndk相关的头文件目录支持，参考前边的笔记），填写你要生成的
so库的文件名，确认和loadLibrary中加载的（如qq_voice）保持一致
9.配置mk文件：
Android.mk

LOCAL_PATH := $(call my-dir)//编译libfmod.so
include $(CLEAR_VARS)
LOCAL_MODULE := fmod
LOCAL_SRC_FILES := libfmod.so
include $(PREBUILT_SHARED_LIBRARY)//编译libfmodL.so
include $(CLEAR_VARS)
LOCAL_MODULE := fmodL
LOCAL_SRC_FILES := libfmodL.so
include $(PREBUILT_SHARED_LIBRARY)//编译我们自己写的c代码为so文件，并添加上边编译的so支持
include $(CLEAR_VARS)
LOCAL_MODULE    := qq_voice
LOCAL_SRC_FILES := effect_fix.cpp
LOCAL_SHARED_LIBRARIES := fmod fmodL
//添加log支持
LOCAL_LDLIBS := -llog
//添加c++异常类支持
LOCAL_CPP_FEATURES := exceptions
include $(BUILD_SHARED_LIBRARY)

Application.mk

##支持C++异常处理，标准莫板块(针对string.h等头文件的处理，去掉了common.c之后，这个不再需要了，但是保留也没问题)
APP_STL := gnustl_static

10.不断的build project，直到所有异常解决编译成功

部分源码：
effect_fix.cpp

#include "org_fmod_example_EffectUtils.h"
#include "inc/fmod.hpp"
#include <stdlib.h>
#include <unistd.h>
#include <android/log.h>
#define LOGI(FORMAT,...) __android_log_print(ANDROID_LOG_INFO,"renzhenming",FORMAT,##__VA_ARGS__)
#define LOGE(FORMAT,...) __android_log_print(ANDROID_LOG_ERROR,"renzhenming",FORMAT,##__VA_ARGS__)#define MODE_NORMAL 0
#define MODE_LUOLI 1
#define MODE_DASHU 2
#define MODE_JINGSONG 3
#define MODE_GAOGUAI 4
#define MODE_KONGLING 5using namespace FMOD;JNIEXPORT void JNICALL Java_org_fmod_example_EffectUtils_fix(JNIEnv *env, jclass jcls, jstring path_jstr, jint type){System            *system;FMOD_RESULT       result;Sound             *sound;Channel           *channel;DSP               *dsp;float             frequency = 0;bool isPlaying = true;const char *media_path = env->GetStringUTFChars(path_jstr,NULL);try {//初始化result = System_Create(&system);result = system->init(32, FMOD_INIT_NORMAL, NULL);//创建声音//这里进坑了，写作下边的样子是无法播放的，正确的方式是第二行 因为sound如果是null,那么，播放的时候的sound也就是null,怎么播放呢//result = system->createSound(media_path, FMOD_DEFAULT, 0, NULL);LOGI("%s",media_path);system->createSound(media_path, FMOD_DEFAULT, NULL, &sound);switch(type){case MODE_NORMAL://原生播放result = system->playSound(sound, 0, false, &channel);break;case MODE_LUOLI://dsp -- 音效//FMOD_DSP_TYPE_PITCHSHIFT 提升或者降低音调用的一种音效system->createDSPByType(FMOD_DSP_TYPE_PITCHSHIFT,&dsp);//设置音调的参数dsp->setParameterFloat(FMOD_DSP_PITCHSHIFT_PITCH,2);//播放(播放和添加channel的顺序必须是先播放，再添加，否则音效无法生效)//猜测原因//playSound之后并不是立即播放，而是在system->update();之后开始播放，//playSound的作用是创造了一个sound载体一个channel载体，然后在这个载体基础上添加一系列的效果，所以，只能现有载体//效果才有放置的位置，所以需要先play再添加result = system->playSound(sound, 0, false, &channel);//添加到channelchannel->addDSP(0,dsp);break;case MODE_DASHU://dsp -- 音效//FMOD_DSP_TYPE_PITCHSHIFT 提升或者降低音调用的一种音效system->createDSPByType(FMOD_DSP_TYPE_PITCHSHIFT,&dsp);//设置音调的参数dsp->setParameterFloat(FMOD_DSP_PITCHSHIFT_PITCH,0.6);//播放(播放和添加channel的顺序必须是先播放，再添加，否则音效无法生效)result = system->playSound(sound, 0, false, &channel);//添加到channelchannel->addDSP(0,dsp);break;case MODE_GAOGUAI://提高说话的速度result = system->playSound(sound, 0, false, &channel);channel->getFrequency(&frequency);\frequency = frequency*1.5;channel->setFrequency(frequency);break;case MODE_KONGLING:system->createDSPByType(FMOD_DSP_TYPE_ECHO,&dsp);dsp->setParameterFloat(FMOD_DSP_ECHO_DELAY,300);dsp->setParameterFloat(FMOD_DSP_ECHO_FEEDBACK,2);result = system->playSound(sound, 0, false, &channel);channel->addDSP(0,dsp);break;case MODE_JINGSONG://紧张system->createDSPByType(FMOD_DSP_TYPE_ECHO,&dsp);dsp->setParameterFloat(FMOD_DSP_TREMOLO_SKEW,0.5);result = system->playSound(sound, 0, false, &channel);channel->addDSP(0,dsp);break;default:break;}while(isPlaying){channel->isPlaying(&isPlaying);//<unistd.h>//单位微秒，不断的睡眠保证声音播放完成之后再释放资源usleep(1000*1000);}LOGI("%s","播放完成");system->update();} catch(...){LOGE("%s","发生异常");goto end;}goto end;end:env->ReleaseStringUTFChars(path_jstr,media_path);result = sound->release();system->close();system->release();
}

QQActivity.java

package org.fmod.example;import java.io.File;import com.renzhenming.qq_voice.R;import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.View;public class QQActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);org.fmod.FMOD.init(this);setContentView(R.layout.activity_main);}public void mFix(View view){String path = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separatorChar + "singing.wav";Log.d("renzhenming", path);switch (view.getId()) {case R.id.btn_record:EffectUtils.fix(path, EffectUtils.MODE_NORMAL);Log.d("renzhenming", "MODE_NORMAL");break;case R.id.btn_luoli:EffectUtils.fix(path, EffectUtils.MODE_LUOLI);Log.d("renzhenming", "MODE_LUOLI");break;case R.id.btn_dashu:EffectUtils.fix(path, EffectUtils.MODE_DASHU);Log.d("renzhenming", "MODE_DASHU");break;case R.id.btn_jingsong:EffectUtils.fix(path, EffectUtils.MODE_JINGSONG);break;  case R.id.btn_gaoguai:EffectUtils.fix(path, EffectUtils.MODE_GAOGUAI);break;  case R.id.btn_kongling:EffectUtils.fix(path, EffectUtils.MODE_KONGLING);break;  default:break;}}@Overrideprotected void onDestroy(){    org.fmod.FMOD.close();      super.onDestroy();}
}

EffectUtils.java

package org.fmod.example;public class EffectUtils {//音效的类型public static final int MODE_NORMAL = 0;public static final int MODE_LUOLI = 1;public static final int MODE_DASHU = 2;public static final int MODE_JINGSONG = 3;public static final int MODE_GAOGUAI = 4;public static final int MODE_KONGLING = 5;/*** 音效处理* @param path* @param type*/public native static void fix(String path,int type);static{System.loadLibrary("fmodL");System.loadLibrary("fmod");System.loadLibrary("qq_voice");}
}

程序运行界面

18404062.png