cocos2dx之 android/ios语音交互（二）

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经过一番折腾，终于找到了一种第三方库来转换android与iOS录音播放格式不兼容的问题。
思路：android／iOS手机录音传给服务器，参数（录音数据+手机端口类型），然后等到服务器广播数据给玩家，判断端口是android，将数据保存为为.amr格式，否则保存为.aac格式。不同手机端口调用相应端口函数。
1、设置端口录音格式:
android–>.amr

    public void record(){        if (isRecording == true ) return;            recondPath = Environment.getExternalStorageDirectory().getAbsolutePath();         recondPath += "/ione1.amr"; //录音格式        File dirs = new File(recondPath);        if (dirs.exists()){           dirs.delete();        }        stopRecorder();                 isRecording = true;         mRecorder = new MediaRecorder();                  //设置音源为Micphone          mRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);         //设置封装格式        mRecorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);         //设置编码格式          mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);                 mRecorder. setAudioEncodingBitRate(8);//设置音频编码录音比特率        mRecorder.setAudioChannels(1);//设置录制的音频通道数        mRecorder.setAudioSamplingRate(8000); //设置音频采样率记录                        mRecorder.setOutputFile(recondPath);            try {                mRecorder.prepare();            } catch (IOException e) {                Log.e(TAG, "prepare() failed");        }        //录音          mRecorder.start();            }    public boolean stopRecorder() {         if( mRecorder == null ) return false;        try{            mRecorder.stop();                mRecorder.reset();            mRecorder.release();                mRecorder = null;           }catch ( IllegalStateException e){            e.printStackTrace();        }        return false;      }

ios–>.aac

-(void)startAudioRecording{    if(!isRecording)    {        [self init];        isRecording = YES;        NSLog(@"正在录音");        NSMutableDictionary *dicM=[NSMutableDictionary dictionary];        //设置录音格式        [dicM setObject:@(kAudioFormatMPEG4AAC) forKey:AVFormatIDKey];//录音格式        //设置录音采样率，8000是电话采样率，对于一般录音已经够了        [dicM setObject:@(1600) forKey:AVSampleRateKey];        //设置通道,这里采用单声道        [dicM setObject:@(1) forKey:AVNumberOfChannelsKey];        //每个采样点位数,分为8、16、24、32        [dicM setObject:@(8) forKey:AVLinearPCMBitDepthKey];        //录音的质量        [dicM setValue:[NSNumber numberWithInt:AVAudioQualityMin] forKey:AVEncoderAudioQualityKey];        //是否使用浮点数采样        [dicM setObject:@(YES) forKey:AVLinearPCMIsFloatKey];        recorder = [[AVAudioRecorder alloc] initWithURL:recordedFile settings:dicM error:nil];        [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];        [[AVAudioSession sharedInstance] setActive:YES error:nil];        [self setSoundSession];        [recorder peakPowerForChannel:0];        [recorder prepareToRecord];        [recorder record];    }}

2、接收服务器传来的需要播放的录音数据，根据不同端口录的音保存为数据相同录音格式:
android–>.amr
ios–>.aac

//服务器传来录音数据，保存在表voiceTab中//voiceTab[index] = event.datafunction MainScene:startPlayVoice()    if self.isStartRecond  == false then -- 没有在录音        if device.platform == "android" or device.platform == "ios" then --播放录音                    local len = #voiceTab            if len >= 1 then                voicePlay( data )            else                print(" 录音播放完了 ")            end        end    endend

function voicePlay(data)    if device.platform == "android" then        local function callback(result)            -- print("录音播放完成 " )              ReturnRecordingPlayChange(result)        end        local path = writefileCheckRecond( data.voicebin, data.content )        print("开始播放了  voicePlay ")        local args = { 1,  path, callback }        local sigs = "(ILjava/lang/String;I)I"        local luaj = require "cocos.cocos2d.luaj"        local className = "com/cocos2dx/sample/LuaJavaBridge"        local ok,ret  = luaj.callStaticMethod(className,"sendLuaToJavaAudioRecorPlay",args,sigs)        if not ok then            print("luaj error:", ret)        else            print("The ret is:", ret)        end    elseif device.platform == "ios" then        local path = writefileCheckRecond( data.voicebin, data.content )        print("开始播放了  voicePlay ",path)        local i = iosAudioStartPlay( path )     endend

function writefileCheckRecond( data,platform )    local path = device.writablePath.."netSprite/" --获取本地存储目录    if not io.exists(path) then        lfs.mkdir(path) --目录不存在，创建此目录    end    if platform == "android" then        path = path.."recond.amr"    elseif platform == "ios" then        path = path.."recond.aac"    else        return;    end    print("写入完成:"..path)    return path;end

3、分析两端口录音互相播放的情况（A端口录音–>B端口播放）
android–>android:android玩家录音为.amr传给服务器，android玩家接收录音二进制数据保存的也是.amr格式，播放OK。

    public void startPlay(String filePath,int luaFunc){        if( isPlay == true)        {            Log.d("tag", "正在播放中");            return;        }        try {            stopPlay();              isPlay = true;            playLuaFun = luaFunc;             mPlayer = MediaPlayer.create(Cocos2dxActivity.getInstance(), Uri.parse(filePath));            mPlayer.start();// 开始播放                                 mPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener(){                @Override                 public void onCompletion(MediaPlayer m) {                     Log.d("tag", "播放完毕");                                           LuaJavaBridge.callbackLuaFun("1","ReturnRecordingPlayChange",index++);                       buySuccessJava(1);                    Log.d(TAG, "playLuaFun = " + playLuaFun);                    isPlay = false;                    stopPlay();                }            });        }catch(Exception e){              Log.e(TAG, "prepare() failed");        }    }

android–>iOS:android玩家录音为.amr传给服务器，iOS玩家接收录音二进制数据保存为.amr格式，调用第三方库将格式.amr转.mav格式就播放OK。

-(void)playAudio{    if(!isPlay)    {        if([player isPlaying])        {            NSLog(@"停止录音播放");            [player pause];        }        else        {            NSString *documentsDirectory= [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];            audioRecoderSavePath=[NSString stringWithFormat:@"%@/%@", documentsDirectory,@"netSprite/"];            recoderName= [NSString stringWithFormat:@"%@",@"recond.amr"];            tempRecoderPath=[NSString stringWithFormat:@"%@%@",audioRecoderSavePath,recoderName];            fm = [NSFileManager defaultManager]; //创建文件管理对象            if([fm fileExistsAtPath:tempRecoderPath] == NO)//判断文件是否存在            {                NSLog(@"文件不存在");                recoderName= [NSString stringWithFormat:@"%@",@"recond.aac"];                tempRecoderPath=[NSString stringWithFormat:@"%@%@",audioRecoderSavePath,recoderName];                isIos = true;                [self startPlayAudio];                return;            }            else            {                isIos = false;                NSLog(@"文件存在");            }            NSString *recoderWavName= [NSString stringWithFormat:@"%@",@"recond.wav"];            tempWavRecoderPath =[NSString stringWithFormat:@"%@%@",audioRecoderSavePath,recoderWavName];            //第三方库AudioConverter            [AudioConverter convertAmrToWavAtPath:tempRecoderPath wavSavePath:tempWavRecoderPath asynchronize:YES completion:^(BOOL success, NSString * _Nullable resultPath) {                if (success) {                    NSLog(@"amr转wav成功!");                    _wavFilePath = resultPath;                    [self startPlayAudio];                } else {                   NSLog(@"amr转wav失败!");                }            }];        }    }}

iOS –>android:ios玩家录音为.aac格式传给服务器，android玩家接收录音二进制数据保存为.aac格式，
android玩家播iOS录的.aac格式OK。

iOS–>iOS:ios玩家录音为.aac格式传给服务器，ios玩家接收录音二进制数据保存为.aac格式，ios玩家播iOS录的.aac格式OK。

参考：
http://blog.csdn.net/qq_36946260/article/details/69224150
http://blog.csdn.net/adalu1986/article/details/50502387
http://www.jianshu.com/p/7dc01b48f8fc

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