JackCoreAudioDriver.cpp 48 KB
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/*
Copyright (C) 2004-2006 Grame

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include "JackCoreAudioDriver.h"
#include "JackEngineControl.h"
#include "JackMachThread.h"
#include "JackGraphManager.h"
#include "JackError.h"
#include "JackClientControl.h"
#include "JackDriverLoader.h"
#include "JackGlobals.h"
#include "driver_interface.h"
#include <iostream>

namespace Jack
{

static void PrintStreamDesc(AudioStreamBasicDescription *inDesc)
{
    JackLog("- - - - - - - - - - - - - - - - - - - -\n");
    JackLog("  Sample Rate:%f\n", inDesc->mSampleRate);
    JackLog("  Format ID:%.*s\n", (int) sizeof(inDesc->mFormatID), (char*)&inDesc->mFormatID);
    JackLog("  Format Flags:%lX\n", inDesc->mFormatFlags);
    JackLog("  Bytes per Packet:%ld\n", inDesc->mBytesPerPacket);
    JackLog("  Frames per Packet:%ld\n", inDesc->mFramesPerPacket);
    JackLog("  Bytes per Frame:%ld\n", inDesc->mBytesPerFrame);
    JackLog("  Channels per Frame:%ld\n", inDesc->mChannelsPerFrame);
    JackLog("  Bits per Channel:%ld\n", inDesc->mBitsPerChannel);
    JackLog("- - - - - - - - - - - - - - - - - - - -\n");
}

static void printError(OSStatus err)
{
    switch (err) {
        case kAudioHardwareNoError:
            JackLog("error code : kAudioHardwareNoError\n");
            break;
        case kAudioConverterErr_FormatNotSupported:
            JackLog("error code : kAudioConverterErr_FormatNotSupported\n");
            break;
        case kAudioConverterErr_OperationNotSupported:
            JackLog("error code : kAudioConverterErr_OperationNotSupported\n");
            break;
        case kAudioConverterErr_PropertyNotSupported:
            JackLog("error code : kAudioConverterErr_PropertyNotSupported\n");
            break;
        case kAudioConverterErr_InvalidInputSize:
            JackLog("error code : kAudioConverterErr_InvalidInputSize\n");
            break;
        case kAudioConverterErr_InvalidOutputSize:
            JackLog("error code : kAudioConverterErr_InvalidOutputSize\n");
            break;
        case kAudioConverterErr_UnspecifiedError:
            JackLog("error code : kAudioConverterErr_UnspecifiedError\n");
            break;
        case kAudioConverterErr_BadPropertySizeError:
            JackLog("error code : kAudioConverterErr_BadPropertySizeError\n");
            break;
        case kAudioConverterErr_RequiresPacketDescriptionsError:
            JackLog("error code : kAudioConverterErr_RequiresPacketDescriptionsError\n");
            break;
        case kAudioConverterErr_InputSampleRateOutOfRange:
            JackLog("error code : kAudioConverterErr_InputSampleRateOutOfRange\n");
            break;
        case kAudioConverterErr_OutputSampleRateOutOfRange:
            JackLog("error code : kAudioConverterErr_OutputSampleRateOutOfRange\n");
            break;
        case kAudioHardwareNotRunningError:
            JackLog("error code : kAudioHardwareNotRunningError\n");
            break;
        case kAudioHardwareUnknownPropertyError:
            JackLog("error code : kAudioHardwareUnknownPropertyError\n");
            break;
        case kAudioHardwareIllegalOperationError:
            JackLog("error code : kAudioHardwareIllegalOperationError\n");
            break;
        case kAudioHardwareBadDeviceError:
            JackLog("error code : kAudioHardwareBadDeviceError\n");
            break;
        case kAudioHardwareBadStreamError:
            JackLog("error code : kAudioHardwareBadStreamError\n");
            break;
        case kAudioDeviceUnsupportedFormatError:
            JackLog("error code : kAudioDeviceUnsupportedFormatError\n");
            break;
        case kAudioDevicePermissionsError:
            JackLog("error code : kAudioDevicePermissionsError\n");
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            break;
		case kAudioHardwareBadObjectError:
            JackLog("error code : kAudioHardwareBadObjectError\n");
            break;
			case kAudioHardwareUnsupportedOperationError:
            JackLog("error code : kAudioHardwareUnsupportedOperationError\n");
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            break;
        default:
            JackLog("error code : unknown\n");
            break;
    }
}

static OSStatus DisplayDeviceNames()
{
    UInt32 size;
    Boolean isWritable;
    int i, deviceNum;
    OSStatus err;
    CFStringRef UIname;

    err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices, &size, &isWritable);
    if (err != noErr)
        return err;

    deviceNum = size / sizeof(AudioDeviceID);
    AudioDeviceID devices[deviceNum];

    err = AudioHardwareGetProperty(kAudioHardwarePropertyDevices, &size, devices);
    if (err != noErr)
        return err;

    for (i = 0; i < deviceNum; i++) {
        char device_name[256];
        char internal_name[256];

        size = sizeof(CFStringRef);
        UIname = NULL;
        err = AudioDeviceGetProperty(devices[i], 0, false, kAudioDevicePropertyDeviceUID, &size, &UIname);
        if (err == noErr) {
            CFStringGetCString(UIname, internal_name, 256, CFStringGetSystemEncoding());
        } else {
            goto error;
        }

        size = 256;
        err = AudioDeviceGetProperty(devices[i], 0, false, kAudioDevicePropertyDeviceName, &size, device_name);
        if (err != noErr)
            return err;

        printf("Device name = \'%s\', internal_name = \'%s\' (to be used as -C, -P, or -d parameter)\n", device_name, internal_name);
    }

    return noErr;

error:
    if (UIname != NULL)
        CFRelease(UIname);
    return err;
}

OSStatus JackCoreAudioDriver::Render(void *inRefCon,
                                     AudioUnitRenderActionFlags *ioActionFlags,
                                     const AudioTimeStamp *inTimeStamp,
                                     UInt32 inBusNumber,
                                     UInt32 inNumberFrames,
                                     AudioBufferList *ioData)
{
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	JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inRefCon;
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    driver->fLastWaitUst = GetMicroSeconds(); // Take callback date here
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	driver->fActionFags = ioActionFlags;
	driver->fCurrentTime = (AudioTimeStamp *)inTimeStamp;
	driver->fDriverOutputData = ioData;
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    return driver->Process();
}

int JackCoreAudioDriver::Read()
{
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	AudioUnitRender(fAUHAL, fActionFags, fCurrentTime, 1, fEngineControl->fBufferSize, fJackInputData);
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    return 0;
}

int JackCoreAudioDriver::Write()
{
    for (int i = 0; i < fPlaybackChannels; i++) {
        if (fGraphManager->GetConnectionsNum(fPlaybackPortList[i]) > 0) {
            float* buffer = GetOutputBuffer(i);
            int size = sizeof(float) * fEngineControl->fBufferSize;
            memcpy((float*)fDriverOutputData->mBuffers[i].mData, buffer, size);
            // Monitor ports
            if (fWithMonitorPorts && fGraphManager->GetConnectionsNum(fMonitorPortList[i]) > 0)
                memcpy(GetMonitorBuffer(i), buffer, size);
        } else {
            memset((float*)fDriverOutputData->mBuffers[i].mData, 0, sizeof(float) * fEngineControl->fBufferSize);
        }
    }
    return 0;
}

// Will run only once
OSStatus JackCoreAudioDriver::MeasureCallback(AudioDeviceID inDevice,
        const AudioTimeStamp* inNow,
        const AudioBufferList* inInputData,
        const AudioTimeStamp* inInputTime,
        AudioBufferList* outOutputData,
        const AudioTimeStamp* inOutputTime,
        void* inClientData)
{
    JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inClientData;
    AudioDeviceStop(driver->fDeviceID, MeasureCallback);
    AudioDeviceRemoveIOProc(driver->fDeviceID, MeasureCallback);
    JackLog("JackCoreAudioDriver::MeasureCallback called\n");
    JackMachThread::GetParams(&driver->fEngineControl->fPeriod, &driver->fEngineControl->fComputation, &driver->fEngineControl->fConstraint);
    return noErr;
}

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OSStatus JackCoreAudioDriver::SRNotificationCallback(AudioDeviceID inDevice,
        UInt32 inChannel,
        Boolean	isInput,
        AudioDevicePropertyID inPropertyID,
        void* inClientData)
{
	JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inClientData;
	
	switch (inPropertyID) {

		case kAudioDevicePropertyNominalSampleRate: {
			JackLog("JackCoreAudioDriver::SRNotificationCallback kAudioDevicePropertyNominalSampleRate \n");
			driver->fState = true;
			break;
		}
	}
	
	return noErr;
}

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// A better implementation would try to recover in case of hardware device change (see HALLAB HLFilePlayerWindowControllerAudioDevicePropertyListenerProc code)

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OSStatus JackCoreAudioDriver::DeviceNotificationCallback(AudioDeviceID inDevice,
        UInt32 inChannel,
        Boolean	isInput,
        AudioDevicePropertyID inPropertyID,
        void* inClientData)
{
    JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inClientData;
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	switch (inPropertyID) {
	
		case kAudioDeviceProcessorOverload:
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			JackLog("JackCoreAudioDriver::DeviceNotificationCallback kAudioDeviceProcessorOverload\n");
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		#ifdef DEBUG
			//driver->fLogFile->Capture(AudioGetCurrentHostTime() - AudioConvertNanosToHostTime(LOG_SAMPLE_DURATION * 1000000), AudioGetCurrentHostTime(), true, "Captured Latency Log for I/O Cycle Overload\n");
		#endif
			driver->NotifyXRun(GetMicroSeconds());
			break;
			
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		case kAudioDevicePropertyStreamConfiguration:
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		case kAudioDevicePropertyNominalSampleRate: {
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			UInt32 outSize = sizeof(Float64);
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			Float64 sampleRate;
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			int in_nChannels = 0;
			int out_nChannels = 0;
			char capture_driver_name[256];
			char playback_driver_name[256];
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			// Stop and restart
			driver->Stop();
			driver->RemoveListeners();
			driver->CloseAUHAL();
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			OSStatus err = AudioDeviceGetProperty(driver->fDeviceID, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyNominalSampleRate, &outSize, &sampleRate);
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			if (err != noErr) {
				jack_error("Cannot get current sample rate");
				printError(err);
			}
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			JackLog("JackCoreAudioDriver::DeviceNotificationCallback kAudioDevicePropertyNominalSampleRate %ld\n", long(sampleRate));
			
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			if (driver->SetupDevices(driver->fCaptureUID, driver->fPlaybackUID, capture_driver_name, playback_driver_name) < 0)
				return -1;
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			if (driver->SetupChannels(driver->fCapturing, driver->fPlaying, driver->fInChannels, driver->fOutChannels, in_nChannels, out_nChannels, false) < 0)
				return -1;
		 		 
			if (driver->SetupBufferSizeAndSampleRate(driver->fEngineControl->fBufferSize, sampleRate)  < 0)
				return -1;	

			if (driver->OpenAUHAL(driver->fCapturing, 
									driver->fPlaying, 
									driver->fInChannels, 
									driver->fOutChannels, 
									in_nChannels, 
									out_nChannels, 
									driver->fEngineControl->fBufferSize, 
									sampleRate,
									false) < 0)
				goto error;

			if (driver->AddListeners() < 0)
				goto error;
	      
		    driver->Start();
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			// Send notification to be used in JackPilot or JackRouter plugin 
			jack_error("Device restart...");
			CFStringRef ref = CFStringCreateWithCString(NULL, driver->fEngineControl->fServerName, kCFStringEncodingMacRoman);
			CFNotificationCenterPostNotificationWithOptions(CFNotificationCenterGetDistributedCenter(),
															CFSTR("com.grame.jackserver.restart"),
															ref,
															NULL,
															kCFNotificationDeliverImmediately | kCFNotificationPostToAllSessions);
			CFRelease(ref);
			return noErr;
		error:
			driver->CloseAUHAL();
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			break;
		}
	}
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    return noErr;
}

OSStatus JackCoreAudioDriver::GetDeviceIDFromUID(const char* UID, AudioDeviceID* id)
{
    UInt32 size = sizeof(AudioValueTranslation);
    CFStringRef inIUD = CFStringCreateWithCString(NULL, UID, CFStringGetSystemEncoding());
    AudioValueTranslation value = { &inIUD, sizeof(CFStringRef), id, sizeof(AudioDeviceID) };

    if (inIUD == NULL) {
        return kAudioHardwareUnspecifiedError;
    } else {
        OSStatus res = AudioHardwareGetProperty(kAudioHardwarePropertyDeviceForUID, &size, &value);
        CFRelease(inIUD);
        JackLog("get_device_id_from_uid %s %ld \n", UID, *id);
        return (*id == kAudioDeviceUnknown) ? kAudioHardwareBadDeviceError : res;
    }
}

OSStatus JackCoreAudioDriver::GetDefaultDevice(AudioDeviceID* id)
{
    OSStatus res;
    UInt32 theSize = sizeof(UInt32);
    AudioDeviceID inDefault;
    AudioDeviceID outDefault;

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    if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &theSize, &inDefault)) != noErr)
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        return res;

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    if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &theSize, &outDefault)) != noErr)
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        return res;

    JackLog("GetDefaultDevice: input = %ld output = %ld\n", inDefault, outDefault);

    // Get the device only if default input and ouput are the same
    if (inDefault == outDefault) {
        *id = inDefault;
        return noErr;
    } else {
        jack_error("Default input and output devices are not the same !!");
        return kAudioHardwareBadDeviceError;
    }
}

OSStatus JackCoreAudioDriver::GetDefaultInputDevice(AudioDeviceID* id)
{
    OSStatus res;
    UInt32 theSize = sizeof(UInt32);
    AudioDeviceID inDefault;

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    if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &theSize, &inDefault)) != noErr)
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        return res;

    JackLog("GetDefaultInputDevice: input = %ld \n", inDefault);
    *id = inDefault;
    return noErr;
}

OSStatus JackCoreAudioDriver::GetDefaultOutputDevice(AudioDeviceID* id)
{
    OSStatus res;
    UInt32 theSize = sizeof(UInt32);
    AudioDeviceID outDefault;

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    if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &theSize, &outDefault)) != noErr)
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        return res;

    JackLog("GetDefaultOutputDevice: output = %ld\n", outDefault);
    *id = outDefault;
    return noErr;
}

OSStatus JackCoreAudioDriver::GetDeviceNameFromID(AudioDeviceID id, char* name)
{
    UInt32 size = 256;
    return AudioDeviceGetProperty(id, 0, false, kAudioDevicePropertyDeviceName, &size, name);
}

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OSStatus JackCoreAudioDriver::GetTotalChannels(AudioDeviceID device, int* channelCount, bool isInput)
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{
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    OSStatus err = noErr;
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    UInt32	outSize;
    Boolean	outWritable;
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    AudioBufferList* bufferList = 0;
  	
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    *channelCount = 0;
    err = AudioDeviceGetPropertyInfo(device, 0, isInput, kAudioDevicePropertyStreamConfiguration, &outSize, &outWritable);
    if (err == noErr) {
        bufferList = (AudioBufferList*)malloc(outSize);
        err = AudioDeviceGetProperty(device, 0, isInput, kAudioDevicePropertyStreamConfiguration, &outSize, bufferList);
        if (err == noErr) {
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            for (unsigned int i = 0; i < bufferList->mNumberBuffers; i++)
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                *channelCount += bufferList->mBuffers[i].mNumberChannels;
        }
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		if (bufferList)
			free(bufferList);
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    }

    return err;
}

JackCoreAudioDriver::JackCoreAudioDriver(const char* name, JackEngine* engine, JackSynchro** table)
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        : JackAudioDriver(name, engine, table), fJackInputData(NULL), fDriverOutputData(NULL), fState(false)
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{
#ifdef DEBUG
    //fLogFile = new CALatencyLog("jackmp_latency", ".txt");
#endif
}

JackCoreAudioDriver::~JackCoreAudioDriver()
{
#ifdef DEBUG
    //delete fLogFile;
#endif
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}

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int JackCoreAudioDriver::SetupDevices(const char* capture_driver_uid, const char* playback_driver_uid, char* capture_driver_name, char* playback_driver_name)
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{
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	capture_driver_name[0] = 0;
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    playback_driver_name[0] = 0;
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	// Duplex
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    if (strcmp(capture_driver_uid, "") != 0 && strcmp(playback_driver_uid, "") != 0) {
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        JackLog("JackCoreAudioDriver::Open duplex \n");
        if (GetDeviceIDFromUID(playback_driver_uid, &fDeviceID) != noErr) {
            if (GetDefaultDevice(&fDeviceID) != noErr) {
                jack_error("Cannot open default device");
                return -1;
            }
        }
        if (GetDeviceNameFromID(fDeviceID, capture_driver_name) != noErr || GetDeviceNameFromID(fDeviceID, playback_driver_name) != noErr) {
            jack_error("Cannot get device name from device ID");
            return -1;
        }

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	// Capture only
    } else if (strcmp(capture_driver_uid, "") != 0) {
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        JackLog("JackCoreAudioDriver::Open capture only \n");
        if (GetDeviceIDFromUID(capture_driver_uid, &fDeviceID) != noErr) {
            if (GetDefaultInputDevice(&fDeviceID) != noErr) {
                jack_error("Cannot open default device");
                return -1;
            }
        }
        if (GetDeviceNameFromID(fDeviceID, capture_driver_name) != noErr) {
            jack_error("Cannot get device name from device ID");
            return -1;
        }

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	// Playback only
    } else if (strcmp(playback_driver_uid, "") != 0) {
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        JackLog("JackCoreAudioDriver::Open playback only \n");
        if (GetDeviceIDFromUID(playback_driver_uid, &fDeviceID) != noErr) {
            if (GetDefaultOutputDevice(&fDeviceID) != noErr) {
                jack_error("Cannot open default device");
                return -1;
            }
        }
        if (GetDeviceNameFromID(fDeviceID, playback_driver_name) != noErr) {
            jack_error("Cannot get device name from device ID");
            return -1;
        }

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	// Use default driver in duplex mode
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    } else {
        JackLog("JackCoreAudioDriver::Open default driver \n");
        if (GetDefaultDevice(&fDeviceID) != noErr) {
            jack_error("Cannot open default device");
            return -1;
        }
        if (GetDeviceNameFromID(fDeviceID, capture_driver_name) != noErr || GetDeviceNameFromID(fDeviceID, playback_driver_name) != noErr) {
            jack_error("Cannot get device name from device ID");
            return -1;
        }
    }
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	return 0;
}
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int JackCoreAudioDriver::SetupChannels(bool capturing, bool playing, int& inchannels, int& outchannels, int& in_nChannels, int& out_nChannels, bool strict)
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{
	OSStatus err = noErr;
	
	if (capturing) {
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        err = GetTotalChannels(fDeviceID, &in_nChannels, true);
        if (err != noErr) {
            jack_error("Cannot get input channel number");
            printError(err);
            return -1;
        }
    }

    if (playing) {
        err = GetTotalChannels(fDeviceID, &out_nChannels, false);
        if (err != noErr) {
            jack_error("Cannot get output channel number");
            printError(err);
            return -1;
        }
    }

    if (inchannels > in_nChannels) {
        jack_error("This device hasn't required input channels inchannels = %ld in_nChannels = %ld", inchannels, in_nChannels);
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		if (strict)
			return -1;
	}
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    if (outchannels > out_nChannels) {
        jack_error("This device hasn't required output channels outchannels = %ld out_nChannels = %ld", outchannels, out_nChannels);
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        if (strict)
			return -1;
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    }

    if (inchannels == 0) {
        JackLog("Setup max in channels = %ld\n", in_nChannels);
        inchannels = in_nChannels;
    }

    if (outchannels == 0) {
        JackLog("Setup max out channels = %ld\n", out_nChannels);
        outchannels = out_nChannels;
    }
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	return 0;
}
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int JackCoreAudioDriver::SetupBufferSizeAndSampleRate(jack_nframes_t nframes, jack_nframes_t samplerate)
{
	OSStatus err = noErr;
    UInt32 outSize;
 	Float64 sampleRate;
	
	// Setting buffer size
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    outSize = sizeof(UInt32);
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  	err = AudioDeviceSetProperty(fDeviceID, NULL, 0, false, kAudioDevicePropertyBufferFrameSize, outSize, &nframes);
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    if (err != noErr) {
        jack_error("Cannot set buffer size %ld", nframes);
        printError(err);
        return -1;
    }

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    // Get sample rate
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	outSize =  sizeof(Float64);
	err = AudioDeviceGetProperty(fDeviceID, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyNominalSampleRate, &outSize, &sampleRate);
	if (err != noErr) {
		jack_error("Cannot get current sample rate");
		printError(err);
		return -1;
	}

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	// If needed, set new sample rate
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	if (samplerate != (jack_nframes_t)sampleRate) {
		sampleRate = (Float64)samplerate;
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		// To get SR change notification
		err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, SRNotificationCallback, this);
		if (err != noErr) {
			jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyNominalSampleRate");
			printError(err);
			return -1;
		}
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		err = AudioDeviceSetProperty(fDeviceID, NULL, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyNominalSampleRate, outSize, &sampleRate);
		if (err != noErr) {
			jack_error("Cannot set sample rate = %ld", samplerate);
			printError(err);
			return -1;
		}
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		// Waiting for SR change notification
		int count = 0;
		while (!fState && count++ < 100) {
			usleep(100000);
			JackLog("Wait count = %ld\n", count);
		}
		
		// Remove SR change notification
		AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, SRNotificationCallback);
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	}
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	return 0;
}
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int JackCoreAudioDriver::OpenAUHAL(bool capturing, 
								bool playing, 
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								int inchannels, 
								int outchannels, 
								int in_nChannels, 
								int out_nChannels, 
								jack_nframes_t nframes,
								jack_nframes_t samplerate,
								bool strict)
{
	ComponentResult err1;
    UInt32 enableIO;
    AudioStreamBasicDescription srcFormat, dstFormat;
	
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	JackLog("OpenAUHAL capturing = %ld playing = %ld playing = %ld outchannels = %ld in_nChannels = %ld out_nChannels = %ld \n", capturing, playing, inchannels, inchannels, in_nChannels, out_nChannels);
	
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	 // AUHAL
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    ComponentDescription cd = {kAudioUnitType_Output, kAudioUnitSubType_HALOutput, kAudioUnitManufacturer_Apple, 0, 0};
    Component HALOutput = FindNextComponent(NULL, &cd);

    err1 = OpenAComponent(HALOutput, &fAUHAL);
    if (err1 != noErr) {
        jack_error("Error calling OpenAComponent");
        printError(err1);
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        return -1;
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    }

    err1 = AudioUnitInitialize(fAUHAL);
    if (err1 != noErr) {
        jack_error("Cannot initialize AUHAL unit");
        printError(err1);
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        return -1;
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    }

    // Start I/O
    enableIO = 1;
    if (capturing && inchannels > 0) {
        JackLog("Setup AUHAL input\n");
        err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, 1, &enableIO, sizeof(enableIO));
        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input");
            printError(err1);
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            if (strict)
				return -1;
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        }
    }

    if (playing && outchannels > 0) {
        JackLog("Setup AUHAL output\n");
        err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Output, 0, &enableIO, sizeof(enableIO));
        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_EnableIO,kAudioUnitScope_Output");
            printError(err1);
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            if (strict)
				return -1;
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        }
    }

    // Setup up choosen device, in both input and output cases
    err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &fDeviceID, sizeof(AudioDeviceID));
    if (err1 != noErr) {
        jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_CurrentDevice");
        printError(err1);
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        if (strict)
			return -1;
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    }

    // Set buffer size
    if (capturing && inchannels > 0) {
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        err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, 1, (UInt32*)&nframes, sizeof(UInt32));
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        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_MaximumFramesPerSlice");
            printError(err1);
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            if (strict)
				return -1;
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        }
    }

    if (playing && outchannels > 0) {
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        err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, 0, (UInt32*)&nframes, sizeof(UInt32));
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        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_MaximumFramesPerSlice");
            printError(err1);
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			if (strict)
				return -1;
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        }
    }

    // Setup channel map
    if (capturing && inchannels > 0 && inchannels < in_nChannels) {
        SInt32 chanArr[in_nChannels];
        for (int i = 0; i < in_nChannels; i++) {
            chanArr[i] = -1;
        }
        for (int i = 0; i < inchannels; i++) {
            chanArr[i] = i;
        }
        AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_ChannelMap , kAudioUnitScope_Input, 1, chanArr, sizeof(SInt32) * in_nChannels);
        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_ChannelMap 1");
            printError(err1);
        }
    }

    if (playing && outchannels > 0 && outchannels < out_nChannels) {
        SInt32 chanArr[out_nChannels];
        for (int i = 0;	i < out_nChannels; i++) {
            chanArr[i] = -1;
        }
        for (int i = 0; i < outchannels; i++) {
            chanArr[i] = i;
        }
        err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_ChannelMap, kAudioUnitScope_Output, 0, chanArr, sizeof(SInt32) * out_nChannels);
        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_ChannelMap 0");
            printError(err1);
        }
    }

    // Setup stream converters
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	JackLog("Setup AUHAL input stream converter SR = %ld\n", samplerate);
	srcFormat.mSampleRate = samplerate;
	srcFormat.mFormatID = kAudioFormatLinearPCM;
	srcFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;
	srcFormat.mBytesPerPacket = sizeof(float);
	srcFormat.mFramesPerPacket = 1;
	srcFormat.mBytesPerFrame = sizeof(float);
	srcFormat.mChannelsPerFrame = outchannels;
	srcFormat.mBitsPerChannel = 32;
	
	err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &srcFormat, sizeof(AudioStreamBasicDescription));
	if (err1 != noErr) {
		jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_StreamFormat kAudioUnitScope_Input");
		printError(err1);
	}
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	JackLog("Setup AUHAL output stream converter SR = %ld\n", samplerate);
	dstFormat.mSampleRate = samplerate;
	dstFormat.mFormatID = kAudioFormatLinearPCM;
	dstFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;
	dstFormat.mBytesPerPacket = sizeof(float);
	dstFormat.mFramesPerPacket = 1;
	dstFormat.mBytesPerFrame = sizeof(float);
	dstFormat.mChannelsPerFrame = inchannels;
	dstFormat.mBitsPerChannel = 32;

	err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 1, &dstFormat, sizeof(AudioStreamBasicDescription));
	if (err1 != noErr) {
		jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_StreamFormat kAudioUnitScope_Output");
		printError(err1);
	}
	
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    // Setup callbacks
    if (inchannels > 0 && outchannels == 0) {
        AURenderCallbackStruct output;
        output.inputProc = Render;
        output.inputProcRefCon = this;
        err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_SetInputCallback, kAudioUnitScope_Global, 0, &output, sizeof(output));
        if (err1 != noErr) {
            jack_error("Error calling  AudioUnitSetProperty - kAudioUnitProperty_SetRenderCallback 1");
            printError(err1);
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            return -1;
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        }
    } else {
        AURenderCallbackStruct output;
        output.inputProc = Render;
        output.inputProcRefCon = this;
        err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, 0, &output, sizeof(output));
        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_SetRenderCallback 0");
            printError(err1);
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            return -1;
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        }
    }

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	return 0;
}

int JackCoreAudioDriver::SetupBuffers(int inchannels, int outchannels)
{
	// Prepare buffers
	fJackInputData = (AudioBufferList*)malloc(sizeof(UInt32) + inchannels * sizeof(AudioBuffer));
	if (fJackInputData == 0) {
		jack_error("Cannot allocate memory for input buffers");
		return -1;
	}
	fJackInputData->mNumberBuffers = inchannels;
	for (int i = 0; i < fCaptureChannels; i++) {
		fJackInputData->mBuffers[i].mNumberChannels = 1;
		fJackInputData->mBuffers[i].mDataByteSize = fEngineControl->fBufferSize * sizeof(float);
	}
	return 0;
}

void JackCoreAudioDriver::DisposeBuffers()
{
	if (fJackInputData) {
		free(fJackInputData);
		fJackInputData = 0;
	}
}

void JackCoreAudioDriver::CloseAUHAL()
{
    AudioUnitUninitialize(fAUHAL);
    CloseComponent(fAUHAL);
}
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int JackCoreAudioDriver::AddListeners()
{
	OSStatus err = noErr;
	 
	// Add listeners
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    err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDeviceProcessorOverload, DeviceNotificationCallback, this);
    if (err != noErr) {
        jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDeviceProcessorOverload");
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        printError(err);
        return -1;
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    }

    err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioHardwarePropertyDevices, DeviceNotificationCallback, this);
    if (err != noErr) {
        jack_error("Error calling AudioDeviceAddPropertyListener with kAudioHardwarePropertyDevices");
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        printError(err);
        return -1;
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    }
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	err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, DeviceNotificationCallback, this);
    if (err != noErr) {
        jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyNominalSampleRate");
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        printError(err);
        return -1;
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    }
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	err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyDeviceIsRunning, DeviceNotificationCallback, this);
    if (err != noErr) {
        jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyDeviceIsRunning");
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        printError(err);
        return -1;
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    }
	
	err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback, this);
    if (err != noErr) {
        jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyStreamConfiguration");
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        printError(err);
        return -1;
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    }

	err = AudioDeviceAddPropertyListener(fDeviceID, 0, false, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback, this);
    if (err != noErr) {
        jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyStreamConfiguration");
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        printError(err);
        return -1;
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    }

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	return 0;
}
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void JackCoreAudioDriver::RemoveListeners()
{
	AudioDeviceRemoveIOProc(fDeviceID, MeasureCallback);
    AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDeviceProcessorOverload, DeviceNotificationCallback);
	AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioHardwarePropertyDevices, DeviceNotificationCallback);
	AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, DeviceNotificationCallback);
	AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyDeviceIsRunning, DeviceNotificationCallback);
	AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback);
	AudioDeviceRemovePropertyListener(fDeviceID, 0, false, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback);
}

int JackCoreAudioDriver::Open(jack_nframes_t nframes,
                              jack_nframes_t samplerate,
                              bool capturing,
                              bool playing,
                              int inchannels,
                              int outchannels,
                              bool monitor,
                              const char* capture_driver_uid,
                              const char* playback_driver_uid,
                              jack_nframes_t capture_latency,
                              jack_nframes_t playback_latency)
{
	int in_nChannels = 0;
    int out_nChannels = 0;
    char capture_driver_name[256];
    char playback_driver_name[256];
	
	// Keep initial state
	fCapturing = capturing;
	fPlaying = playing;
	fInChannels = inchannels;
	fOutChannels = outchannels;
	fMonitor = monitor;
	strcpy(fCaptureUID, capture_driver_uid);
	strcpy(fPlaybackUID, playback_driver_uid);
	fCaptureLatency = capture_latency;
	fPlaybackLatency = playback_latency;
	
	if (SetupDevices(capture_driver_uid, playback_driver_uid, capture_driver_name, playback_driver_name) < 0)
		return -1;
		
    // Generic JackAudioDriver Open
    if (JackAudioDriver::Open(nframes, samplerate, capturing, playing, inchannels, outchannels, monitor, capture_driver_name, playback_driver_name, capture_latency, playback_latency) != 0) 
		return -1;
  	
	if (SetupChannels(capturing, playing, inchannels, outchannels, in_nChannels, out_nChannels, true) < 0)
		return -1;
		 		 
	if (SetupBufferSizeAndSampleRate(nframes, samplerate)  < 0)
		return -1;	

	if (OpenAUHAL(capturing, playing, inchannels, outchannels, in_nChannels, out_nChannels, nframes, samplerate, true) < 0)
		goto error;
		
	if (capturing && inchannels > 0)
		if (SetupBuffers(inchannels, outchannels) < 0)
			goto error;

	if (AddListeners() < 0)
		goto error;
	
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    // Core driver may have changed the in/out values
    fCaptureChannels = inchannels;
    fPlaybackChannels = outchannels;
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    return noErr;
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error:
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	Close();
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    return -1;
}

int JackCoreAudioDriver::Close()
{
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	JackLog("JackCoreAudioDriver::Close\n");
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	Stop();
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    JackAudioDriver::Close();
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    RemoveListeners();
	DisposeBuffers();
	CloseAUHAL();
    return 0;
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}

int JackCoreAudioDriver::Attach()
{
    OSStatus err;
    JackPort* port;
    jack_port_id_t port_index;
    UInt32 size;
    Boolean isWritable;
    char channel_name[64];
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    char buf[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
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    unsigned long port_flags = JackPortIsOutput | JackPortIsPhysical | JackPortIsTerminal;

    JackLog("JackCoreAudioDriver::Attach fBufferSize %ld fSampleRate %ld\n", fEngineControl->fBufferSize, fEngineControl->fSampleRate);

    for (int i = 0; i < fCaptureChannels; i++) {

        err = AudioDeviceGetPropertyInfo(fDeviceID, i + 1, true, kAudioDevicePropertyChannelName, &size, &isWritable);
        if (err != noErr)
            JackLog("AudioDeviceGetPropertyInfo kAudioDevicePropertyChannelName error \n");
        if (err == noErr && size > 0) {
            err = AudioDeviceGetProperty(fDeviceID, i + 1, true, kAudioDevicePropertyChannelName, &size, channel_name);
            if (err != noErr)
                JackLog("AudioDeviceGetProperty kAudioDevicePropertyChannelName error \n");
            snprintf(buf, sizeof(buf) - 1, "%s:%s:out_%s%u", fClientControl->fName, fCaptureDriverName, channel_name, i + 1);
        } else {
            snprintf(buf, sizeof(buf) - 1, "%s:%s:out%u", fClientControl->fName, fCaptureDriverName, i + 1);
        }

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        if ((port_index = fGraphManager->AllocatePort(fClientControl->fRefNum, buf, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize)) == NO_PORT) {
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            jack_error("Cannot register port for %s", buf);
            return -1;
        }
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		size = sizeof(UInt32);
		UInt32 value1 = 0;
		UInt32 value2 = 0;
		err = AudioDeviceGetProperty(fDeviceID, 0, true, kAudioDevicePropertyLatency, &size, &value1);	
		if (err != noErr) 
			JackLog("AudioDeviceGetProperty kAudioDevicePropertyLatency error \n");
		err = AudioDeviceGetProperty(fDeviceID, 0, true, kAudioDevicePropertySafetyOffset, &size, &value2);	
		if (err != noErr) 
			JackLog("AudioDeviceGetProperty kAudioDevicePropertySafetyOffset error \n");
	
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        port = fGraphManager->GetPort(port_index);
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		port->Rename("system:capture_%d", i + 1);
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        port->SetLatency(fEngineControl->fBufferSize + value1 + value2 + fCaptureLatency);
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        fCapturePortList[i] = port_index;
    }

    port_flags = JackPortIsInput | JackPortIsPhysical | JackPortIsTerminal;

    for (int i = 0; i < fPlaybackChannels; i++) {

        err = AudioDeviceGetPropertyInfo(fDeviceID, i + 1, false, kAudioDevicePropertyChannelName, &size, &isWritable);
        if (err != noErr)
            JackLog("AudioDeviceGetPropertyInfo kAudioDevicePropertyChannelName error \n");
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