// // YAudioStreamPlayer.m // Yoosee // // Created by guojunyi on 14-7-23. // Copyright (c) 2014年 guojunyi. All rights reserved. // #import "YAudioStreamPlayer.h" #import #import #import #import "Constants.h" #define kOutputBus 0 #define kInputBus 1 #define pi 3.14159 @interface YAudioStreamPlayer () { AudioUnit _audioUnit; AudioBufferList *_m_inBufferList; Float64 recordSampleRate; AudioStreamBasicDescription audioFormat; } @end @implementation YAudioStreamPlayer int SinIndex = 0; int iAudioLen = 0; //************************************ int iCrc32(Byte buf[], int len) { int dwCrcValue = 0xAA55CC99; int i = 0; int crc_table[] = { 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d }; if (len != 0) do { // DO1(buf); dwCrcValue = crc_table[((int) dwCrcValue ^ (buf[i])) & 0xff] ^ (dwCrcValue >> 8); i++; len--; } while (len != 0); return dwCrcValue; } short SinValue(int frequence) { SinIndex++; return (short) (32767 * sin(2 * 3.14 * SinIndex * frequence / 44100)); } int iCreate5KHzHeader(short wBuffer[]) { for (int i = 0; i < 1102; i++) // 25mS { wBuffer[2 * i] = (short) (32767 * sin(2 * 3.14 * i * 5000 / 44100)); wBuffer[2 * i + 1] = (short) (32767 * sin(2 * 3.14 * i * 5000 / 44100)); } int n = 1102 * 2 + 2425 * 2;// 55mS return n; } int iFillSinData(short wBuffer[], int offset, int pointer, double time_begin_pos, double time_end_pos) { SinIndex = 0; while (true) { double t1 = (double) pointer * 1000 / 44100; if (t1 > time_end_pos) { break; } if (t1 >= time_begin_pos && t1 <= time_end_pos) { wBuffer[offset + pointer * 2] = SinValue(12600); } else { wBuffer[offset + pointer * 2] = 0; } wBuffer[offset + pointer * 2 + 1] = wBuffer[offset + pointer * 2]; pointer++; } return pointer; } int iCreateAudioDataSeq(Byte TransData[], int iDataLen, short wBuffer[], int offset) { double time_begin = 0; double time_end = 9;//3.376;// int pos = 0; pos = iFillSinData(wBuffer, offset, pos, time_begin, time_end); time_begin = time_end + 4.5; //1.688;// time_end = time_begin + 0.56; //0.422;// pos = iFillSinData(wBuffer, offset, pos, time_begin, time_end); for (int i = 0; i < iDataLen; i++) { Byte data = TransData[i]; for (int j = 0; j < 8; j++) { if ((data & 0x01) != 0) { time_begin = time_end + 1.69; //1.266;// time_end = time_begin + 0.56; //0.422; // pos = iFillSinData(wBuffer, offset, pos, time_begin, time_end); } else { time_begin = time_end + 0.56; //0.422; // time_end = time_begin + 0.56; //0.422; // pos = iFillSinData(wBuffer, offset, pos, time_begin, time_end); } data >>= 1; } } time_begin = time_end + 40; // time_end = time_begin + 9; // pos = iFillSinData(wBuffer, offset, pos, time_begin, time_end); time_begin = time_end + 2.25; // time_end = time_begin + 0.55; // pos = iFillSinData(wBuffer, offset, pos, time_begin, time_end); // /repeat /* * time_begin = 110; time_end = 110+9; pos = iFillSinData(wBuffer, * offset, pos,time_begin, time_end ); * * time_begin = time_end + 2.25; time_end = time_begin+0.56; pos = * iFillSinData(wBuffer, offset, pos,time_begin, time_end ); */ return pos * 2; } int iCreateSetWiFiCmdRawData(int DevicePassword, int iType, char* SSID,int ssidSize,char* wifiPassword,int pwdSize, Byte bCmdBuf[]) { bCmdBuf[0] = 0x01; bCmdBuf[1] = (Byte) ((Byte) 0xFF & (Byte) (DevicePassword >> 24)); bCmdBuf[2] = (Byte) ((Byte) 0xFF & (Byte) (DevicePassword >> 16)); bCmdBuf[3] = (Byte) ((Byte) 0xFF & (Byte) (DevicePassword >> 8)); bCmdBuf[4] = (Byte) ((Byte) 0xFF & (Byte) (DevicePassword >> 0)); bCmdBuf[5] = (Byte) ((Byte) iType & 0x03); int k = 6; for (int i = 0; i < ssidSize; i++) { bCmdBuf[k] = SSID[i]; k++; } bCmdBuf[k] = 0; k++; for (int i = 0; i < pwdSize; i++) { bCmdBuf[k] = (Byte) wifiPassword[i]; k++; } bCmdBuf[k] = 0; k++; return k; } int iSetWiFiCmd(int DevicePassword, int iType,const char* SSID,int ssidSize,const char* wifiPassword,int pwdSize, short PlayBuf[]) { Byte bCmdData[256]; memset(bCmdData, 0, 256); int ilen = iCreateSetWiFiCmdRawData(DevicePassword, iType, SSID,ssidSize, wifiPassword,pwdSize, bCmdData); // create 5kHz header int AudioDataLen = iCreate5KHzHeader(PlayBuf); Byte bPlayData[6]; Byte bTmp; int iSeqCnt = ilen / 5 + 1; if ((ilen % 5) != 0) iSeqCnt += 1; int idx = 0; for (int i = 0; i < iSeqCnt; i++) { bPlayData[1] = (Byte) bCmdData[idx]; idx++; bPlayData[2] = (Byte) bCmdData[idx]; idx++; bPlayData[3] = (Byte) bCmdData[idx]; idx++; bPlayData[4] = (Byte) bCmdData[idx]; idx++; bPlayData[5] = (Byte) bCmdData[idx]; idx++; bPlayData[0] = (Byte) ((Byte) i & 0x0F); bTmp = (Byte) (bPlayData[0] ^ bPlayData[1] ^ bPlayData[2] ^ bPlayData[3] ^ bPlayData[4] ^ bPlayData[5]); bPlayData[0] = (Byte) ((Byte) ((bTmp & 0xF0) ^ (bTmp << 4)) | (bPlayData[0] & 0x0F)); int offset = iCreateAudioDataSeq(bPlayData, 6, PlayBuf, AudioDataLen); AudioDataLen += offset; AudioDataLen += 20*(44100*2/1000) ; //50mS if(i==0) { offset = iCreateAudioDataSeq(bPlayData, 6, PlayBuf, AudioDataLen); AudioDataLen += offset; AudioDataLen += 20*(44100*2/1000) ; //50mS } // offset = iCreate5KHzHeader(PlayBuf); //5KHz Header // AudioDataLen += offset; // Log.e("e", "AudioDataLen1="+AudioDataLen); } // /CRC Byte bCrcData[6]; int iCrcValue = iCrc32(bCmdData, ilen); bCrcData[0] = 0x0F; bCrcData[1] = (Byte) ilen; bCrcData[2] = (Byte) ((Byte) (iCrcValue >> 24) & 0xFF); bCrcData[3] = (Byte) ((Byte) (iCrcValue >> 16) & 0xFF); bCrcData[4] = (Byte) ((Byte) (iCrcValue >> 8) & 0xFF); bCrcData[5] = (Byte) ((Byte) (iCrcValue >> 0) & 0xFF); bTmp = (Byte) (bCrcData[0] ^ bCrcData[1] ^ bCrcData[2] ^ bCrcData[3] ^ bCrcData[4] ^ bCrcData[5]); bCrcData[0] = (Byte) ((Byte) ((bTmp & 0xF0) ^ (bTmp << 4)) | (bCrcData[0] & 0x0F)); int offset = iCreateAudioDataSeq(bCrcData, 6, PlayBuf, AudioDataLen); AudioDataLen += offset; AudioDataLen += 50 * (44100 * 2 / 1000); // 50mS // Log.e("e", "AudioDataLen2="+AudioDataLen); return AudioDataLen; } int iSetPTZCmd(Byte bDirection, short PlayBuf[]) { Byte bCmdData[256]; memset(bCmdData, 0, 256); // create 5kHz header // memset(PlayBuf, 0, sizeof(PlayBuf)); int AudioDataLen = iCreate5KHzHeader(PlayBuf); Byte bData[6]; Byte bTmp; bData[0] = 0x0F; bData[1] = (Byte) 0x04; bData[2] = (Byte) 0x02; bData[3] = (Byte) bDirection; bData[4] = (Byte) 0; bData[5] = (Byte) 0; bTmp = (Byte) (bData[0] ^ bData[1] ^ bData[2] ^ bData[3] ^ bData[4] ^ bData[5]); bData[0] = (Byte) ((Byte) ((bTmp & 0xF0) ^ (bTmp << 4)) | (bData[0] & 0x0F)); ///first time int offset = iCreateAudioDataSeq(bData, 6, PlayBuf, AudioDataLen); AudioDataLen += offset; AudioDataLen += 20*(44100*2/1000) ; //50mS ///second time offset = iCreateAudioDataSeq(bData, 6, PlayBuf, AudioDataLen); AudioDataLen += offset; AudioDataLen += 20*(44100*2/1000) ; //50mS //3 time offset = iCreateAudioDataSeq(bData, 6, PlayBuf, AudioDataLen); AudioDataLen += offset; AudioDataLen += 20*(44100*2/1000) ; //50mS return AudioDataLen; } //void vPTZCtrlByIR(Byte bDirection) { // short play_buffer[44100*10]; // int iLen = iSetPTZCmd(bDirection, play_buffer); // //} //************************************ #define checkstatus(x) yCheckStatusWithLineNumber(__LINE__, x) void yCheckStatusWithLineNumber(int lineNumber, OSStatus status) { if (status != 0) NSLog(@"An error occurred on line %d: %d", lineNumber, (int)status); } void yInterruptionListenerCallback (void *inUserData, UInt32 interruptionState) { if (interruptionState == kAudioSessionBeginInterruption) { //hungup } } void yAudioRouteChangeCallback(void*inClientData, AudioSessionPropertyID inID, UInt32 inDataSize, const void*inData) { CFDictionaryRef routeChangeDictionary = inData; CFNumberRef routeChangeReasonRef = CFDictionaryGetValue(routeChangeDictionary, CFSTR(kAudioSession_AudioRouteChangeKey_Reason)); SInt32 routeChangeReason; CFNumberGetValue(routeChangeReasonRef, kCFNumberSInt32Type, &routeChangeReason); switch (routeChangeReason) { case kAudioSessionRouteChangeReason_OldDeviceUnavailable: DLog(@"AudioSessionRouteChange : Old Audio Device Unavailable"); break; case kAudioSessionRouteChangeReason_NewDeviceAvailable: DLog(@"AudioSessionRouteChange : New Audio Device Available"); break; case kAudioSessionRouteChangeReason_Override: DLog(@"AudioSessionRouteChange : Audio Device Route Change Override"); break; default: if (routeChangeReason == kAudioSessionRouteChangeReason_NoSuitableRouteForCategory) { DLog(@"AudioSessionRouteChange : No Suitable Route For Category"); } break; } [[YAudioStreamPlayer sharedDefault] checkSpeaker]; } static OSStatus recordingCallback(void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList *ioData) { //DLog(@"*"); return noErr; } static short play_buffer[44100*10]; static int iAudioIndex = 0; static int iTargetAudioLen = 0; static OSStatus playbackCallback(void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList *ioData) { short *buffer = (short*)ioData->mBuffers[0].mData; int AudioSize = ioData->mBuffers[0].mDataByteSize; if(iTargetAudioLen) { if(iAudioIndex + AudioSize/2 >= 44100*10) { AudioSize = (44100*10 -iAudioIndex) *2; } memcpy(buffer,&(play_buffer[iAudioIndex]),AudioSize); iAudioIndex += (AudioSize/2); if(iAudioIndex>=iTargetAudioLen) { iTargetAudioLen = 0; iAudioIndex = 0; } } else { memset(buffer, 0, AudioSize); } return noErr; } void playCmd(int cmd){ if(iTargetAudioLen==0){ memset(play_buffer,0,44100*10*2); iTargetAudioLen = iSetPTZCmd(cmd, play_buffer); } } void playWIFI(int devicePassword,int type,const char *ssid,int ssidSize,const char *wifiPassword,int pwdSize){ if(iTargetAudioLen==0){ memset(play_buffer,0,44100*10*2); iTargetAudioLen = iSetWiFiCmd(devicePassword, type, ssid, ssidSize, wifiPassword, pwdSize, play_buffer); } } + (id)sharedDefault { static YAudioStreamPlayer *manager = nil; @synchronized([self class]){ if(manager==nil){ DLog(@"Alloc FListManager"); manager = [[YAudioStreamPlayer alloc] init]; manager.isPlay = NO; } } return manager; } -(void)playCmd:(NSInteger)cmd{ playCmd(cmd); } -(void)playWIFI:(NSString *)ssid wifiPassword:(NSString *)wifiPassword devicePassword:(NSString *)devicePassword{ int type = 0; if(wifiPassword.length>0){ type = 2; }else{ type = 0; } playWIFI(devicePassword.intValue,type,[ssid UTF8String],[ssid length],[wifiPassword UTF8String],[wifiPassword length]); } -(BOOL)initSession{ OSStatus error = AudioSessionInitialize(NULL, NULL, yInterruptionListenerCallback, NULL); // 初始化音频会话 if (error) printf("YAudioStreamPlayer ERROR INITIALIZING AUDIO SESSION! %d\n", (int)error); // UInt32 audioCategory = kAudioSessionCategory_PlayAndRecord; UInt32 audioCategory = kAudioSessionCategory_PlayAndRecord; AudioSessionSetProperty(kAudioSessionProperty_AudioCategory, sizeof(audioCategory), &audioCategory); // 侦听耳机插拔事件 AudioSessionAddPropertyListener(kAudioSessionProperty_AudioRouteChange, yAudioRouteChangeCallback, (__bridge void *)(self)); // UInt32 routeSpeaker = kAudioSessionOverrideAudioRoute_Speaker; // AudioSessionSetProperty(kAudioSessionProperty_OverrideCategoryDefaultToSpeaker, sizeof(routeSpeaker), &routeSpeaker); UInt32 doSetProperty = 1; AudioSessionSetProperty(kAudioSessionProperty_OverrideCategoryMixWithOthers, sizeof(doSetProperty), &doSetProperty); Float32 duration = (float)320.0/44100.0; //double version = [[UIDevice currentDevice].systemVersion doubleValue]; // if (version >= 7.0) { // if ([UIScreen mainScreen].bounds.size.height == 568.0) { // duration = (float)160.0/44100.0; // } // } //Float32 duration = (float)kAudioBufferNumFrames / kDefaultSoundRate; AudioSessionSetProperty(kAudioSessionProperty_PreferredHardwareIOBufferDuration, sizeof(duration), &duration); Float64 hwSampleRate = 44100.0; AudioSessionSetProperty(kAudioSessionProperty_PreferredHardwareSampleRate, sizeof(hwSampleRate), &hwSampleRate); OSStatus status = AudioSessionSetActive(true); // 激活会话 if (status) { DLog(@"error when open AudioSession!"); return NO; } return YES; } - (BOOL)uninitSession { AudioSessionRemovePropertyListenerWithUserData(kAudioSessionProperty_AudioRouteChange, yAudioRouteChangeCallback, (__bridge void *)(self)); OSStatus status = AudioSessionSetActive(false); // 反激活会话 if (status) { DLog(@"error when close AudioSession!"); return NO; } return YES; } -(BOOL)initAudio{ AudioComponentDescription audioDesc; audioDesc.componentType = kAudioUnitType_Output; audioDesc.componentSubType = kAudioUnitSubType_RemoteIO;//kAudioUnitSubType_VoiceProcessingIO; audioDesc.componentFlags = 0; audioDesc.componentFlagsMask = 0; audioDesc.componentManufacturer = kAudioUnitManufacturer_Apple; OSStatus status = noErr; AudioComponent inputComponent = AudioComponentFindNext(NULL, &audioDesc); status = AudioComponentInstanceNew(inputComponent, &_audioUnit); checkstatus(status); if (status) { return NO; } UInt32 flag = 1; // Enable IO for recording status = AudioUnitSetProperty(_audioUnit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, kInputBus, &flag, sizeof(flag)); checkstatus(status); // Enable IO for playback status = AudioUnitSetProperty(_audioUnit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Output, kOutputBus, &flag, sizeof(flag)); checkstatus(status); // Describe format audioFormat.mSampleRate = 44100; audioFormat.mFormatID = kAudioFormatLinearPCM; audioFormat.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked; audioFormat.mFramesPerPacket = 1; audioFormat.mChannelsPerFrame = 2; audioFormat.mBitsPerChannel = 16;//short audioFormat.mBytesPerPacket = 4; audioFormat.mBytesPerFrame = 4; // Apply format status = AudioUnitSetProperty(_audioUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, kInputBus, &audioFormat, sizeof(audioFormat)); checkstatus(status); status = AudioUnitSetProperty(_audioUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, kOutputBus, &audioFormat, sizeof(audioFormat)); checkstatus(status); // Set input callback AURenderCallbackStruct callbackStruct; callbackStruct.inputProc = recordingCallback; callbackStruct.inputProcRefCon = (__bridge void *)(self); status = AudioUnitSetProperty(_audioUnit, kAudioOutputUnitProperty_SetInputCallback, kAudioUnitScope_Global, kInputBus, &callbackStruct, sizeof(callbackStruct)); // Set output callback callbackStruct.inputProc = playbackCallback; callbackStruct.inputProcRefCon = (__bridge void *)(self); status = AudioUnitSetProperty(_audioUnit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Global, kOutputBus, &callbackStruct, sizeof(callbackStruct)); checkstatus(status); // Disable buffer allocation for the recorder (optional - do this if we want to pass in our own) flag = 0; status = AudioUnitSetProperty(_audioUnit, kAudioUnitProperty_ShouldAllocateBuffer, kAudioUnitScope_Output, kInputBus, &flag, sizeof(flag)); checkstatus(status); if (status) { return NO; } _m_inBufferList = (AudioBufferList *)malloc(sizeof(AudioBufferList) + sizeof(AudioBuffer)); _m_inBufferList->mNumberBuffers = 1; _m_inBufferList->mBuffers[0].mNumberChannels = 1; _m_inBufferList->mBuffers[0].mDataByteSize = 320 * 2; _m_inBufferList->mBuffers[0].mData = malloc( 320 * 2 ); return YES; } - (BOOL)uninitAudio{ OSStatus status; free(_m_inBufferList->mBuffers[0].mData); free(_m_inBufferList); status = AudioComponentInstanceDispose(_audioUnit); checkstatus(status); if (status) { return NO; } return YES; } - (BOOL)startAudio{ OSStatus status; status = AudioUnitInitialize(_audioUnit); checkstatus(status); if (status) { return NO; } status = AudioOutputUnitStart(_audioUnit); checkstatus(status); if (status) { return NO; } return YES; } - (BOOL)stopAudio { OSStatus status = AudioOutputUnitStop(_audioUnit); checkstatus(status); if (status) { return NO; } status = AudioUnitUninitialize(_audioUnit); checkstatus(status); if (status) { return NO; } return YES; } -(BOOL)start{ if(self.isPlay){ return NO; } BOOL b1 = [self initSession]; if(!b1){ return NO; } BOOL b2 = [self initAudio]; if(!b2){ return NO; } BOOL b3 = [self startAudio]; if(!b3){ return NO; } self.isPlay = YES; return YES; } -(void)stop{ if(!self.isPlay){ return; } [self stopAudio]; [self uninitAudio]; [self uninitSession]; self.isPlay = NO; } - (BOOL)isHeadphone { CFStringRef route; UInt32 propertySize = sizeof(CFStringRef); AudioSessionGetProperty(kAudioSessionProperty_AudioRoute, &propertySize, &route); if((route == NULL) || (CFStringGetLength(route) == 0)){ // Silent Mode DLog(@"AudioRoute: SILENT, do nothing!"); } else { NSString* routeStr = (__bridge NSString *)route; DLog(@"AudioRoute: %@", routeStr); /* Known values of route: * "Headset" * "Headphone" * "Speaker" * "SpeakerAndMicrophone" * "HeadphonesAndMicrophone" * "HeadsetInOut" * "ReceiverAndMicrophone" * "Lineout" */ NSRange headphoneRange = [routeStr rangeOfString : @"Headphone"]; NSRange headsetRange = [routeStr rangeOfString : @"Headset"]; if (headphoneRange.location != NSNotFound) { return YES; } else if(headsetRange.location != NSNotFound) { return YES; } } return NO; } - (void)checkSpeaker { UInt32 audioRoute; if (self.isHeadphone) { audioRoute = kAudioSessionOverrideAudioRoute_None; // 默认输出 } else { audioRoute = kAudioSessionOverrideAudioRoute_Speaker; // 扬声器输出 } AudioSessionSetProperty(kAudioSessionProperty_OverrideAudioRoute, sizeof(UInt32), &audioRoute); } @end