如何在iOS上录制对话/电话？
从理论上讲，可以在iPhone上录制电话通话吗 我接受以下答案：如何在iOS上录制对话/电话？,ios,iphone,audio,audio-recording,Ios,Iphone,Audio,Audio Recording,从理论上讲，可以在iPhone上录制电话通话吗 我接受以下答案： 可能需要也可能不需要越狱 由于使用私有API，可能会通过苹果的指导方针，也可能不会通过（我不在乎；这不适用于应用商店） 可以或不可以使用私人SDK 我不希望答案只是直截了当地说“苹果不允许这样”。 我知道没有官方的方法可以做到这一点，当然也不适用于App Store应用程序，而且我知道有些通话记录应用程序可以通过自己的服务器拨打电话。苹果不允许这样做，也不提供任何API 然而，在越狱设备上，我相信这是可能的。事实上，我认为这已
- 可能需要也可能不需要越狱
- 由于使用私有API，可能会通过苹果的指导方针，也可能不会通过（我不在乎；这不适用于应用商店）
- 可以或不可以使用私人SDK
我知道没有官方的方法可以做到这一点，当然也不适用于App Store应用程序，而且我知道有些通话记录应用程序可以通过自己的服务器拨打电话。苹果不允许这样做，也不提供任何API
然而，在越狱设备上，我相信这是可能的。事实上，我认为这已经完成了。我记得在我的手机被越狱时看到一个应用程序，它改变了你的声音并录制了通话——我记得那是一家只在美国提供的美国公司。不幸的是，我不记得名字了……我能想到的唯一解决方案是使用框架，更具体地说，使用属性，在来电时进行拦截，然后使用录制手机用户的声音（可能还有另一条线路上的一小部分用户的声音）。这显然不是完美的，并且只有当您的应用程序在调用时处于前台时才起作用，但这可能是您所能得到的最好结果。有关查找是否有来电的详细信息，请参见此处： 编辑： .h: AppDelegate.m：
- (void)applicationDidEnterBackground:(UIApplication *)application//Makes sure that the recording keeps happening even when app is in the background, though only can go for 10 minutes.
{
__block UIBackgroundTaskIdentifier task = 0;
task=[application beginBackgroundTaskWithExpirationHandler:^{
NSLog(@"Expiration handler called %f",[application backgroundTimeRemaining]);
[application endBackgroundTask:task];
task=UIBackgroundTaskInvalid;
}];
- 我想一些硬件可以解决这个问题。连接至微型插孔端口；有耳塞和通过小型录音机的麦克风。这台录音机可以很简单。不通话时，录音机可以向手机提供数据/录音（通过插孔电缆）。只需一个简单的开始按钮（就像耳塞上的音量控制按钮一样）就足以为录音计时
一些设置
-
是的。由一个名为Limneos的开发人员完成（而且做得很好）。你可以在Cydia上找到它。它可以在iPhone 5及以上手机上录制任何类型的通话，而无需使用任何服务器等。呼叫将以音频文件的形式置于设备上。它也支持iPhone4S，但只支持扬声器
这是第一个不用第三方服务器、VOIP或类似设备就能录制两个音频流的技术
开发人员在通话的另一端发出嘟嘟声，提醒正在录音的人，但这些声音也被网络上的黑客删除了。回答你的问题，是的，这是非常可能的，不仅仅是理论上的
进一步阅读
- 给你。完整的工作示例。调整应该加载到
mediaserverd/var/mobile/Media/DCIM/result.m4a中记录每个电话。音频文件有两个通道。左边是麦克风，右边是扬声器。在iPhone 4S上，只有当扬声器打开时才会记录通话。在iPhone5上，5C和5S通话都会被记录下来。切换到扬声器或从扬声器切换到扬声器时可能会出现小的打嗝，但录音将继续
#import <AudioToolbox/AudioToolbox.h>
#import <libkern/OSAtomic.h>
//CoreTelephony.framework
extern "C" CFStringRef const kCTCallStatusChangeNotification;
extern "C" CFStringRef const kCTCallStatus;
extern "C" id CTTelephonyCenterGetDefault();
extern "C" void CTTelephonyCenterAddObserver(id ct, void* observer, CFNotificationCallback callBack, CFStringRef name, void *object, CFNotificationSuspensionBehavior sb);
extern "C" int CTGetCurrentCallCount();
enum
{
kCTCallStatusActive = 1,
kCTCallStatusHeld = 2,
kCTCallStatusOutgoing = 3,
kCTCallStatusIncoming = 4,
kCTCallStatusHanged = 5
};
NSString* kMicFilePath = @"/var/mobile/Media/DCIM/mic.caf";
NSString* kSpeakerFilePath = @"/var/mobile/Media/DCIM/speaker.caf";
NSString* kResultFilePath = @"/var/mobile/Media/DCIM/result.m4a";
OSSpinLock phoneCallIsActiveLock = 0;
OSSpinLock speakerLock = 0;
OSSpinLock micLock = 0;
ExtAudioFileRef micFile = NULL;
ExtAudioFileRef speakerFile = NULL;
BOOL phoneCallIsActive = NO;
void Convert()
{
//File URLs
CFURLRef micUrl = CFURLCreateWithFileSystemPath(NULL, (CFStringRef)kMicFilePath, kCFURLPOSIXPathStyle, false);
CFURLRef speakerUrl = CFURLCreateWithFileSystemPath(NULL, (CFStringRef)kSpeakerFilePath, kCFURLPOSIXPathStyle, false);
CFURLRef mixUrl = CFURLCreateWithFileSystemPath(NULL, (CFStringRef)kResultFilePath, kCFURLPOSIXPathStyle, false);
ExtAudioFileRef micFile = NULL;
ExtAudioFileRef speakerFile = NULL;
ExtAudioFileRef mixFile = NULL;
//Opening input files (speaker and mic)
ExtAudioFileOpenURL(micUrl, &micFile);
ExtAudioFileOpenURL(speakerUrl, &speakerFile);
//Reading input file audio format (mono LPCM)
AudioStreamBasicDescription inputFormat, outputFormat;
UInt32 descSize = sizeof(inputFormat);
ExtAudioFileGetProperty(micFile, kExtAudioFileProperty_FileDataFormat, &descSize, &inputFormat);
int sampleSize = inputFormat.mBytesPerFrame;
//Filling input stream format for output file (stereo LPCM)
FillOutASBDForLPCM(inputFormat, inputFormat.mSampleRate, 2, inputFormat.mBitsPerChannel, inputFormat.mBitsPerChannel, true, false, false);
//Filling output file audio format (AAC)
memset(&outputFormat, 0, sizeof(outputFormat));
outputFormat.mFormatID = kAudioFormatMPEG4AAC;
outputFormat.mSampleRate = 8000;
outputFormat.mFormatFlags = kMPEG4Object_AAC_Main;
outputFormat.mChannelsPerFrame = 2;
//Opening output file
ExtAudioFileCreateWithURL(mixUrl, kAudioFileM4AType, &outputFormat, NULL, kAudioFileFlags_EraseFile, &mixFile);
ExtAudioFileSetProperty(mixFile, kExtAudioFileProperty_ClientDataFormat, sizeof(inputFormat), &inputFormat);
//Freeing URLs
CFRelease(micUrl);
CFRelease(speakerUrl);
CFRelease(mixUrl);
//Setting up audio buffers
int bufferSizeInSamples = 64 * 1024;
AudioBufferList micBuffer;
micBuffer.mNumberBuffers = 1;
micBuffer.mBuffers[0].mNumberChannels = 1;
micBuffer.mBuffers[0].mDataByteSize = sampleSize * bufferSizeInSamples;
micBuffer.mBuffers[0].mData = malloc(micBuffer.mBuffers[0].mDataByteSize);
AudioBufferList speakerBuffer;
speakerBuffer.mNumberBuffers = 1;
speakerBuffer.mBuffers[0].mNumberChannels = 1;
speakerBuffer.mBuffers[0].mDataByteSize = sampleSize * bufferSizeInSamples;
speakerBuffer.mBuffers[0].mData = malloc(speakerBuffer.mBuffers[0].mDataByteSize);
AudioBufferList mixBuffer;
mixBuffer.mNumberBuffers = 1;
mixBuffer.mBuffers[0].mNumberChannels = 2;
mixBuffer.mBuffers[0].mDataByteSize = sampleSize * bufferSizeInSamples * 2;
mixBuffer.mBuffers[0].mData = malloc(mixBuffer.mBuffers[0].mDataByteSize);
//Converting
while (true)
{
//Reading data from input files
UInt32 framesToRead = bufferSizeInSamples;
ExtAudioFileRead(micFile, &framesToRead, &micBuffer);
ExtAudioFileRead(speakerFile, &framesToRead, &speakerBuffer);
if (framesToRead == 0)
{
break;
}
//Building interleaved stereo buffer - left channel is mic, right - speaker
for (int i = 0; i < framesToRead; i++)
{
memcpy((char*)mixBuffer.mBuffers[0].mData + i * sampleSize * 2, (char*)micBuffer.mBuffers[0].mData + i * sampleSize, sampleSize);
memcpy((char*)mixBuffer.mBuffers[0].mData + i * sampleSize * 2 + sampleSize, (char*)speakerBuffer.mBuffers[0].mData + i * sampleSize, sampleSize);
}
//Writing to output file - LPCM will be converted to AAC
ExtAudioFileWrite(mixFile, framesToRead, &mixBuffer);
}
//Closing files
ExtAudioFileDispose(micFile);
ExtAudioFileDispose(speakerFile);
ExtAudioFileDispose(mixFile);
//Freeing audio buffers
free(micBuffer.mBuffers[0].mData);
free(speakerBuffer.mBuffers[0].mData);
free(mixBuffer.mBuffers[0].mData);
}
void Cleanup()
{
[[NSFileManager defaultManager] removeItemAtPath:kMicFilePath error:NULL];
[[NSFileManager defaultManager] removeItemAtPath:kSpeakerFilePath error:NULL];
}
void CoreTelephonyNotificationCallback(CFNotificationCenterRef center, void *observer, CFStringRef name, const void *object, CFDictionaryRef userInfo)
{
NSDictionary* data = (NSDictionary*)userInfo;
if ([(NSString*)name isEqualToString:(NSString*)kCTCallStatusChangeNotification])
{
int currentCallStatus = [data[(NSString*)kCTCallStatus] integerValue];
if (currentCallStatus == kCTCallStatusActive)
{
OSSpinLockLock(&phoneCallIsActiveLock);
phoneCallIsActive = YES;
OSSpinLockUnlock(&phoneCallIsActiveLock);
}
else if (currentCallStatus == kCTCallStatusHanged)
{
if (CTGetCurrentCallCount() > 0)
{
return;
}
OSSpinLockLock(&phoneCallIsActiveLock);
phoneCallIsActive = NO;
OSSpinLockUnlock(&phoneCallIsActiveLock);
//Closing mic file
OSSpinLockLock(&micLock);
if (micFile != NULL)
{
ExtAudioFileDispose(micFile);
}
micFile = NULL;
OSSpinLockUnlock(&micLock);
//Closing speaker file
OSSpinLockLock(&speakerLock);
if (speakerFile != NULL)
{
ExtAudioFileDispose(speakerFile);
}
speakerFile = NULL;
OSSpinLockUnlock(&speakerLock);
Convert();
Cleanup();
}
}
}
OSStatus(*AudioUnitProcess_orig)(AudioUnit unit, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inNumberFrames, AudioBufferList *ioData);
OSStatus AudioUnitProcess_hook(AudioUnit unit, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inNumberFrames, AudioBufferList *ioData)
{
OSSpinLockLock(&phoneCallIsActiveLock);
if (phoneCallIsActive == NO)
{
OSSpinLockUnlock(&phoneCallIsActiveLock);
return AudioUnitProcess_orig(unit, ioActionFlags, inTimeStamp, inNumberFrames, ioData);
}
OSSpinLockUnlock(&phoneCallIsActiveLock);
ExtAudioFileRef* currentFile = NULL;
OSSpinLock* currentLock = NULL;
AudioComponentDescription unitDescription = {0};
AudioComponentGetDescription(AudioComponentInstanceGetComponent(unit), &unitDescription);
//'agcc', 'mbdp' - iPhone 4S, iPhone 5
//'agc2', 'vrq2' - iPhone 5C, iPhone 5S
if (unitDescription.componentSubType == 'agcc' || unitDescription.componentSubType == 'agc2')
{
currentFile = &micFile;
currentLock = &micLock;
}
else if (unitDescription.componentSubType == 'mbdp' || unitDescription.componentSubType == 'vrq2')
{
currentFile = &speakerFile;
currentLock = &speakerLock;
}
if (currentFile != NULL)
{
OSSpinLockLock(currentLock);
//Opening file
if (*currentFile == NULL)
{
//Obtaining input audio format
AudioStreamBasicDescription desc;
UInt32 descSize = sizeof(desc);
AudioUnitGetProperty(unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &desc, &descSize);
//Opening audio file
CFURLRef url = CFURLCreateWithFileSystemPath(NULL, (CFStringRef)((currentFile == &micFile) ? kMicFilePath : kSpeakerFilePath), kCFURLPOSIXPathStyle, false);
ExtAudioFileRef audioFile = NULL;
OSStatus result = ExtAudioFileCreateWithURL(url, kAudioFileCAFType, &desc, NULL, kAudioFileFlags_EraseFile, &audioFile);
if (result != 0)
{
*currentFile = NULL;
}
else
{
*currentFile = audioFile;
//Writing audio format
ExtAudioFileSetProperty(*currentFile, kExtAudioFileProperty_ClientDataFormat, sizeof(desc), &desc);
}
CFRelease(url);
}
else
{
//Writing audio buffer
ExtAudioFileWrite(*currentFile, inNumberFrames, ioData);
}
OSSpinLockUnlock(currentLock);
}
return AudioUnitProcess_orig(unit, ioActionFlags, inTimeStamp, inNumberFrames, ioData);
}
__attribute__((constructor))
static void initialize()
{
CTTelephonyCenterAddObserver(CTTelephonyCenterGetDefault(), NULL, CoreTelephonyNotificationCallback, NULL, NULL, CFNotificationSuspensionBehaviorHold);
MSHookFunction(AudioUnitProcess, AudioUnitProcess_hook, &AudioUnitProcess_orig);
}
#导入
#进口
//CoreTelephony.framework
外部“C”CFStringRef const kCTCallStatusChangeNotification；
外部“C”CFStringRef const kCTCallStatus；
外部“C”id CTTelephonyCenterGetDefault（）；
外部“C”void CTTelephonyCenterAddObserver（id ct、void*observer、CFNotificationCallback回调、CFStringRef名称、void*对象、CFNotificationSuspensionBehavior sb）；
外部“C”int CTGetCurrentCallCount（）；
枚举
{
kCTCallStatusActive=1，
KCTCallStatusHold=2，
kCTCallStatusOutgoing=3，
kCTCallStatusIncoming=4，
kCTCallStatusHanged=5
};
NSString*kMicFilePath=@/var/mobile/Media/DCIM/mic.caf”；
NSString*kSpeakerFilePath=@/var/mobile/Media/DCIM/speaker.caf”；
NSString*kResultFilePath=@/var/mobile/Media/DCIM/result.m4a”；
OSSpinLock phoneCallIsActiveLock=0；
OSSpinLock扬声器锁定=0；
OSSpinLock micLock=0；
ExtAudioFileRef micFile=NULL；
ExtAudioFileRef speakerFile=NULL；
BOOL phoneCallIsActive=否；
void Convert（）
{
//文件URL
CFURLRef micUrl=cfurlCreateWithFileSystemPassport（NULL，（CFStringRef）kMicFilePath，kCFURLPOSIXPathStyle，false）；
CFURLRef speakerUrl=cfurlCreateWithFileSystemPassport（NULL，（CFStringRef）kSpeakerFilePath，kCFURLPOSIXPathStyle，false）；
CFURLRef mixUrl=cfurlCreateWithFileSystemPassport（NULL，（CFStringRef）kResultFilePath，kCFURLPOSIXPathStyle，false）；
ExtAudioFileRef micFile=NULL；
ExtAudioFileRef speakerFile=NULL；
ExtAudioFileRef mixFile=NULL；
//打开输入文件（扬声器和麦克风）
ExtAudioFileOpenURL（micUrl和micFile）；
ExtAudioFileOpenURL（speakerUrl和speakerFile）；
//读取输入文件音频格式（单声道LPCM）
音频流基本描述输入格式、输出格式；
UInt32 descSize=sizeof（inputFormat）；
ExtAudioFileGetProperty（micFile、kExtAudioFileProperty_FileDataFormat、&descSize、&inputFormat）；
int sampleSize=inputFormat.mBytesPerFrame；
//填充输出文件的输入流格式（立体声LPCM）
FILLOUTASBDBFORLPCM（inputFormat，inputFormat.mSampleRate，2，inputFormat.mBitsPerChannel，inputFormat.mBitsPerChannel，true，false，false）；
//填充输出文件音频格式（AAC）
memset（&outputFormat，0，sizeof（outputFormat））；
outputFormat.mFormatID=kaudioformampeg4aac；
outputFormat.mSampleRate=8000；
outputFormat.mFormatFlags=kMPEG4Object\u AAC\u Main；
outputFormat.mChannelsPerFrame=2；
//打开输出文件
ExtAudioFileCreate
- (void)applicationDidEnterBackground:(UIApplication *)application//Makes sure that the recording keeps happening even when app is in the background, though only can go for 10 minutes.
{
__block UIBackgroundTaskIdentifier task = 0;
task=[application beginBackgroundTaskWithExpirationHandler:^{
NSLog(@"Expiration handler called %f",[application backgroundTimeRemaining]);
[application endBackgroundTask:task];
task=UIBackgroundTaskInvalid;
}];
#import <AudioToolbox/AudioToolbox.h>
#import <libkern/OSAtomic.h>
//CoreTelephony.framework
extern "C" CFStringRef const kCTCallStatusChangeNotification;
extern "C" CFStringRef const kCTCallStatus;
extern "C" id CTTelephonyCenterGetDefault();
extern "C" void CTTelephonyCenterAddObserver(id ct, void* observer, CFNotificationCallback callBack, CFStringRef name, void *object, CFNotificationSuspensionBehavior sb);
extern "C" int CTGetCurrentCallCount();
enum
{
kCTCallStatusActive = 1,
kCTCallStatusHeld = 2,
kCTCallStatusOutgoing = 3,
kCTCallStatusIncoming = 4,
kCTCallStatusHanged = 5
};
NSString* kMicFilePath = @"/var/mobile/Media/DCIM/mic.caf";
NSString* kSpeakerFilePath = @"/var/mobile/Media/DCIM/speaker.caf";
NSString* kResultFilePath = @"/var/mobile/Media/DCIM/result.m4a";
OSSpinLock phoneCallIsActiveLock = 0;
OSSpinLock speakerLock = 0;
OSSpinLock micLock = 0;
ExtAudioFileRef micFile = NULL;
ExtAudioFileRef speakerFile = NULL;
BOOL phoneCallIsActive = NO;
void Convert()
{
//File URLs
CFURLRef micUrl = CFURLCreateWithFileSystemPath(NULL, (CFStringRef)kMicFilePath, kCFURLPOSIXPathStyle, false);
CFURLRef speakerUrl = CFURLCreateWithFileSystemPath(NULL, (CFStringRef)kSpeakerFilePath, kCFURLPOSIXPathStyle, false);
CFURLRef mixUrl = CFURLCreateWithFileSystemPath(NULL, (CFStringRef)kResultFilePath, kCFURLPOSIXPathStyle, false);
ExtAudioFileRef micFile = NULL;
ExtAudioFileRef speakerFile = NULL;
ExtAudioFileRef mixFile = NULL;
//Opening input files (speaker and mic)
ExtAudioFileOpenURL(micUrl, &micFile);
ExtAudioFileOpenURL(speakerUrl, &speakerFile);
//Reading input file audio format (mono LPCM)
AudioStreamBasicDescription inputFormat, outputFormat;
UInt32 descSize = sizeof(inputFormat);
ExtAudioFileGetProperty(micFile, kExtAudioFileProperty_FileDataFormat, &descSize, &inputFormat);
int sampleSize = inputFormat.mBytesPerFrame;
//Filling input stream format for output file (stereo LPCM)
FillOutASBDForLPCM(inputFormat, inputFormat.mSampleRate, 2, inputFormat.mBitsPerChannel, inputFormat.mBitsPerChannel, true, false, false);
//Filling output file audio format (AAC)
memset(&outputFormat, 0, sizeof(outputFormat));
outputFormat.mFormatID = kAudioFormatMPEG4AAC;
outputFormat.mSampleRate = 8000;
outputFormat.mFormatFlags = kMPEG4Object_AAC_Main;
outputFormat.mChannelsPerFrame = 2;
//Opening output file
ExtAudioFileCreateWithURL(mixUrl, kAudioFileM4AType, &outputFormat, NULL, kAudioFileFlags_EraseFile, &mixFile);
ExtAudioFileSetProperty(mixFile, kExtAudioFileProperty_ClientDataFormat, sizeof(inputFormat), &inputFormat);
//Freeing URLs
CFRelease(micUrl);
CFRelease(speakerUrl);
CFRelease(mixUrl);
//Setting up audio buffers
int bufferSizeInSamples = 64 * 1024;
AudioBufferList micBuffer;
micBuffer.mNumberBuffers = 1;
micBuffer.mBuffers[0].mNumberChannels = 1;
micBuffer.mBuffers[0].mDataByteSize = sampleSize * bufferSizeInSamples;
micBuffer.mBuffers[0].mData = malloc(micBuffer.mBuffers[0].mDataByteSize);
AudioBufferList speakerBuffer;
speakerBuffer.mNumberBuffers = 1;
speakerBuffer.mBuffers[0].mNumberChannels = 1;
speakerBuffer.mBuffers[0].mDataByteSize = sampleSize * bufferSizeInSamples;
speakerBuffer.mBuffers[0].mData = malloc(speakerBuffer.mBuffers[0].mDataByteSize);
AudioBufferList mixBuffer;
mixBuffer.mNumberBuffers = 1;
mixBuffer.mBuffers[0].mNumberChannels = 2;
mixBuffer.mBuffers[0].mDataByteSize = sampleSize * bufferSizeInSamples * 2;
mixBuffer.mBuffers[0].mData = malloc(mixBuffer.mBuffers[0].mDataByteSize);
//Converting
while (true)
{
//Reading data from input files
UInt32 framesToRead = bufferSizeInSamples;
ExtAudioFileRead(micFile, &framesToRead, &micBuffer);
ExtAudioFileRead(speakerFile, &framesToRead, &speakerBuffer);
if (framesToRead == 0)
{
break;
}
//Building interleaved stereo buffer - left channel is mic, right - speaker
for (int i = 0; i < framesToRead; i++)
{
memcpy((char*)mixBuffer.mBuffers[0].mData + i * sampleSize * 2, (char*)micBuffer.mBuffers[0].mData + i * sampleSize, sampleSize);
memcpy((char*)mixBuffer.mBuffers[0].mData + i * sampleSize * 2 + sampleSize, (char*)speakerBuffer.mBuffers[0].mData + i * sampleSize, sampleSize);
}
//Writing to output file - LPCM will be converted to AAC
ExtAudioFileWrite(mixFile, framesToRead, &mixBuffer);
}
//Closing files
ExtAudioFileDispose(micFile);
ExtAudioFileDispose(speakerFile);
ExtAudioFileDispose(mixFile);
//Freeing audio buffers
free(micBuffer.mBuffers[0].mData);
free(speakerBuffer.mBuffers[0].mData);
free(mixBuffer.mBuffers[0].mData);
}
void Cleanup()
{
[[NSFileManager defaultManager] removeItemAtPath:kMicFilePath error:NULL];
[[NSFileManager defaultManager] removeItemAtPath:kSpeakerFilePath error:NULL];
}
void CoreTelephonyNotificationCallback(CFNotificationCenterRef center, void *observer, CFStringRef name, const void *object, CFDictionaryRef userInfo)
{
NSDictionary* data = (NSDictionary*)userInfo;
if ([(NSString*)name isEqualToString:(NSString*)kCTCallStatusChangeNotification])
{
int currentCallStatus = [data[(NSString*)kCTCallStatus] integerValue];
if (currentCallStatus == kCTCallStatusActive)
{
OSSpinLockLock(&phoneCallIsActiveLock);
phoneCallIsActive = YES;
OSSpinLockUnlock(&phoneCallIsActiveLock);
}
else if (currentCallStatus == kCTCallStatusHanged)
{
if (CTGetCurrentCallCount() > 0)
{
return;
}
OSSpinLockLock(&phoneCallIsActiveLock);
phoneCallIsActive = NO;
OSSpinLockUnlock(&phoneCallIsActiveLock);
//Closing mic file
OSSpinLockLock(&micLock);
if (micFile != NULL)
{
ExtAudioFileDispose(micFile);
}
micFile = NULL;
OSSpinLockUnlock(&micLock);
//Closing speaker file
OSSpinLockLock(&speakerLock);
if (speakerFile != NULL)
{
ExtAudioFileDispose(speakerFile);
}
speakerFile = NULL;
OSSpinLockUnlock(&speakerLock);
Convert();
Cleanup();
}
}
}
OSStatus(*AudioUnitProcess_orig)(AudioUnit unit, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inNumberFrames, AudioBufferList *ioData);
OSStatus AudioUnitProcess_hook(AudioUnit unit, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inNumberFrames, AudioBufferList *ioData)
{
OSSpinLockLock(&phoneCallIsActiveLock);
if (phoneCallIsActive == NO)
{
OSSpinLockUnlock(&phoneCallIsActiveLock);
return AudioUnitProcess_orig(unit, ioActionFlags, inTimeStamp, inNumberFrames, ioData);
}
OSSpinLockUnlock(&phoneCallIsActiveLock);
ExtAudioFileRef* currentFile = NULL;
OSSpinLock* currentLock = NULL;
AudioComponentDescription unitDescription = {0};
AudioComponentGetDescription(AudioComponentInstanceGetComponent(unit), &unitDescription);
//'agcc', 'mbdp' - iPhone 4S, iPhone 5
//'agc2', 'vrq2' - iPhone 5C, iPhone 5S
if (unitDescription.componentSubType == 'agcc' || unitDescription.componentSubType == 'agc2')
{
currentFile = &micFile;
currentLock = &micLock;
}
else if (unitDescription.componentSubType == 'mbdp' || unitDescription.componentSubType == 'vrq2')
{
currentFile = &speakerFile;
currentLock = &speakerLock;
}
if (currentFile != NULL)
{
OSSpinLockLock(currentLock);
//Opening file
if (*currentFile == NULL)
{
//Obtaining input audio format
AudioStreamBasicDescription desc;
UInt32 descSize = sizeof(desc);
AudioUnitGetProperty(unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &desc, &descSize);
//Opening audio file
CFURLRef url = CFURLCreateWithFileSystemPath(NULL, (CFStringRef)((currentFile == &micFile) ? kMicFilePath : kSpeakerFilePath), kCFURLPOSIXPathStyle, false);
ExtAudioFileRef audioFile = NULL;
OSStatus result = ExtAudioFileCreateWithURL(url, kAudioFileCAFType, &desc, NULL, kAudioFileFlags_EraseFile, &audioFile);
if (result != 0)
{
*currentFile = NULL;
}
else
{
*currentFile = audioFile;
//Writing audio format
ExtAudioFileSetProperty(*currentFile, kExtAudioFileProperty_ClientDataFormat, sizeof(desc), &desc);
}
CFRelease(url);
}
else
{
//Writing audio buffer
ExtAudioFileWrite(*currentFile, inNumberFrames, ioData);
}
OSSpinLockUnlock(currentLock);
}
return AudioUnitProcess_orig(unit, ioActionFlags, inTimeStamp, inNumberFrames, ioData);
}
__attribute__((constructor))
static void initialize()
{
CTTelephonyCenterAddObserver(CTTelephonyCenterGetDefault(), NULL, CoreTelephonyNotificationCallback, NULL, NULL, CFNotificationSuspensionBehaviorHold);
MSHookFunction(AudioUnitProcess, AudioUnitProcess_hook, &AudioUnitProcess_orig);
}