ifish/Ifish/controllers/IfishYooseeFile/IfishYooseeHelper/IfishYooseeP2PCore/YAudioStreamPlayer.m

790 lines
25 KiB
Objective-C

//
// YAudioStreamPlayer.m
// Yoosee
//
// Created by guojunyi on 14-7-23.
// Copyright (c) 2014年 guojunyi. All rights reserved.
//
#import "YAudioStreamPlayer.h"
#import <AudioUnit/AudioUnit.h>
#import <AudioToolbox/AudioToolbox.h>
#import <MediaPlayer/MediaPlayer.h>
#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