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jack2/macosx/coreaudio/JackCoreAudioDriver.cpp

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  1. /*

  2. Copyright (C) 2004-2008 Grame

  3. 

  4. This program is free software; you can redistribute it and/or modify

  5. it under the terms of the GNU General Public License as published by

  6. the Free Software Foundation; either version 2 of the License, or

  7. (at your option) any later version.

  8. 

  9. This program is distributed in the hope that it will be useful,

  10. but WITHOUT ANY WARRANTY; without even the implied warranty of

  11. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  12. GNU General Public License for more details.

  13. 

  14. You should have received a copy of the GNU General Public License

  15. along with this program; if not, write to the Free Software

  16. Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

  17. 

  18. */

  19. 

  20. #include "JackCoreAudioDriver.h"

  21. #include "JackEngineControl.h"

  22. #include "JackMachThread.h"

  23. #include "JackGraphManager.h"

  24. #include "JackError.h"

  25. #include "JackClientControl.h"

  26. #include "JackDriverLoader.h"

  27. #include "JackGlobals.h"

  28. #include "JackTools.h"

  29. #include "JackCompilerDeps.h"

  30. 

  31. #include <iostream>

  32. #include <CoreServices/CoreServices.h>

  33. #include <CoreFoundation/CFNumber.h>

  34. 

  35. namespace Jack

  36. {

  37. 

  38. static void Print4CharCode(const char* msg, long c)

  39. {

  40.     UInt32 __4CC_number = (c);

  41.     char __4CC_string[5];

  42.     *((SInt32*)__4CC_string) = EndianU32_NtoB(__4CC_number);		

  43.     __4CC_string[4] = 0;

  44.     jack_log("%s'%s'", (msg), __4CC_string);

  45. }

  46. 

  47. static void PrintStreamDesc(AudioStreamBasicDescription *inDesc)

  48. {

  49.     jack_log("- - - - - - - - - - - - - - - - - - - -");

  50.     jack_log("  Sample Rate:%f", inDesc->mSampleRate);

  51.     jack_log("  Format ID:%.*s", (int) sizeof(inDesc->mFormatID), (char*)&inDesc->mFormatID);

  52.     jack_log("  Format Flags:%lX", inDesc->mFormatFlags);

  53.     jack_log("  Bytes per Packet:%ld", inDesc->mBytesPerPacket);

  54.     jack_log("  Frames per Packet:%ld", inDesc->mFramesPerPacket);

  55.     jack_log("  Bytes per Frame:%ld", inDesc->mBytesPerFrame);

  56.     jack_log("  Channels per Frame:%ld", inDesc->mChannelsPerFrame);

  57.     jack_log("  Bits per Channel:%ld", inDesc->mBitsPerChannel);

  58.     jack_log("- - - - - - - - - - - - - - - - - - - -\n");

  59. }

  60. 

  61. static void printError(OSStatus err)

  62. {

  63.     switch (err) {

  64.         case kAudioHardwareNoError:

  65.             jack_log("error code : kAudioHardwareNoError");

  66.             break;

  67.         case kAudioConverterErr_FormatNotSupported:

  68.             jack_log("error code : kAudioConverterErr_FormatNotSupported");

  69.             break;

  70.         case kAudioConverterErr_OperationNotSupported:

  71.             jack_log("error code : kAudioConverterErr_OperationNotSupported");

  72.             break;

  73.         case kAudioConverterErr_PropertyNotSupported:

  74.             jack_log("error code : kAudioConverterErr_PropertyNotSupported");

  75.             break;

  76.         case kAudioConverterErr_InvalidInputSize:

  77.             jack_log("error code : kAudioConverterErr_InvalidInputSize");

  78.             break;

  79.         case kAudioConverterErr_InvalidOutputSize:

  80.             jack_log("error code : kAudioConverterErr_InvalidOutputSize");

  81.             break;

  82.         case kAudioConverterErr_UnspecifiedError:

  83.             jack_log("error code : kAudioConverterErr_UnspecifiedError");

  84.             break;

  85.         case kAudioConverterErr_BadPropertySizeError:

  86.             jack_log("error code : kAudioConverterErr_BadPropertySizeError");

  87.             break;

  88.         case kAudioConverterErr_RequiresPacketDescriptionsError:

  89.             jack_log("error code : kAudioConverterErr_RequiresPacketDescriptionsError");

  90.             break;

  91.         case kAudioConverterErr_InputSampleRateOutOfRange:

  92.             jack_log("error code : kAudioConverterErr_InputSampleRateOutOfRange");

  93.             break;

  94.         case kAudioConverterErr_OutputSampleRateOutOfRange:

  95.             jack_log("error code : kAudioConverterErr_OutputSampleRateOutOfRange");

  96.             break;

  97.         case kAudioHardwareNotRunningError:

  98.             jack_log("error code : kAudioHardwareNotRunningError");

  99.             break;

  100.         case kAudioHardwareUnknownPropertyError:

  101.             jack_log("error code : kAudioHardwareUnknownPropertyError");

  102.             break;

  103.         case kAudioHardwareIllegalOperationError:

  104.             jack_log("error code : kAudioHardwareIllegalOperationError");

  105.             break;

  106.         case kAudioHardwareBadDeviceError:

  107.             jack_log("error code : kAudioHardwareBadDeviceError");

  108.             break;

  109.         case kAudioHardwareBadStreamError:

  110.             jack_log("error code : kAudioHardwareBadStreamError");

  111.             break;

  112.         case kAudioDeviceUnsupportedFormatError:

  113.             jack_log("error code : kAudioDeviceUnsupportedFormatError");

  114.             break;

  115.         case kAudioDevicePermissionsError:

  116.             jack_log("error code : kAudioDevicePermissionsError");

  117.             break;

  118.         case kAudioHardwareBadObjectError:

  119.             jack_log("error code : kAudioHardwareBadObjectError");

  120.             break;

  121.         case kAudioHardwareUnsupportedOperationError:

  122.             jack_log("error code : kAudioHardwareUnsupportedOperationError");

  123.             break;

  124.         default:

  125.             Print4CharCode("error code : unknown", err);

  126.             break;

  127.     }

  128. }

  129. 

  130. static OSStatus DisplayDeviceNames()

  131. {

  132.     UInt32 size;

  133.     Boolean isWritable;

  134.     int i, deviceNum;

  135.     OSStatus err;

  136.     CFStringRef UIname;

  137. 

  138.     err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices, &size, &isWritable);

  139.     if (err != noErr)

  140.         return err;

  141. 

  142.     deviceNum = size / sizeof(AudioDeviceID);

  143.     AudioDeviceID devices[deviceNum];

  144. 

  145.     err = AudioHardwareGetProperty(kAudioHardwarePropertyDevices, &size, devices);

  146.     if (err != noErr)

  147.         return err;

  148. 

  149.     for (i = 0; i < deviceNum; i++) {

  150.         char device_name[256];

  151.         char internal_name[256];

  152. 

  153.         size = sizeof(CFStringRef);

  154.         UIname = NULL;

  155.         err = AudioDeviceGetProperty(devices[i], 0, false, kAudioDevicePropertyDeviceUID, &size, &UIname);

  156.         if (err == noErr) {

  157.             CFStringGetCString(UIname, internal_name, 256, CFStringGetSystemEncoding());

  158.         } else {

  159.             goto error;

  160.         }

  161. 

  162.         size = 256;

  163.         err = AudioDeviceGetProperty(devices[i], 0, false, kAudioDevicePropertyDeviceName, &size, device_name);

  164.         if (err != noErr)

  165.             return err;

  166. 

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

  168.     }

  169. 

  170.     return noErr;

  171. 

  172. error:

  173.     if (UIname != NULL)

  174.         CFRelease(UIname);

  175.     return err;

  176. }

  177. 

  178. static CFStringRef GetDeviceName(AudioDeviceID id)

  179. {

  180.     UInt32 size = sizeof(CFStringRef);

  181.     CFStringRef UIname;

  182.     OSStatus err = AudioDeviceGetProperty(id, 0, false, kAudioDevicePropertyDeviceUID, &size, &UIname);

  183.     return (err == noErr) ? UIname : NULL;

  184. }

  185. 

  186. OSStatus JackCoreAudioDriver::Render(void *inRefCon,

  187.                                      AudioUnitRenderActionFlags *ioActionFlags,

  188.                                      const AudioTimeStamp *inTimeStamp,

  189.                                      UInt32 inBusNumber,

  190.                                      UInt32 inNumberFrames,

  191.                                      AudioBufferList *ioData)

  192. {

  193.     JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inRefCon;

  194.     driver->fActionFags = ioActionFlags;

  195.     driver->fCurrentTime = (AudioTimeStamp *)inTimeStamp;

  196.     driver->fDriverOutputData = ioData;

  197.     driver->CycleTakeBeginTime();

  198.     return driver->Process();

  199. }

  200. 

  201. int JackCoreAudioDriver::Read()

  202. {

  203.     AudioUnitRender(fAUHAL, fActionFags, fCurrentTime, 1, fEngineControl->fBufferSize, fJackInputData);

  204.     return 0;

  205. }

  206. 

  207. int JackCoreAudioDriver::Write()

  208. {

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

  210.         if (fGraphManager->GetConnectionsNum(fPlaybackPortList[i]) > 0) {

  211.             float* buffer = GetOutputBuffer(i);

  212.             int size = sizeof(float) * fEngineControl->fBufferSize;

  213.             memcpy((float*)fDriverOutputData->mBuffers[i].mData, buffer, size);

  214.             // Monitor ports

  215.             if (fWithMonitorPorts && fGraphManager->GetConnectionsNum(fMonitorPortList[i]) > 0)

  216.                 memcpy(GetMonitorBuffer(i), buffer, size);

  217.         } else {

  218.             memset((float*)fDriverOutputData->mBuffers[i].mData, 0, sizeof(float) * fEngineControl->fBufferSize);

  219.         }

  220.     }

  221.     return 0;

  222. }

  223. 

  224. // Will run only once

  225. OSStatus JackCoreAudioDriver::MeasureCallback(AudioDeviceID inDevice,

  226.         const AudioTimeStamp* inNow,

  227.         const AudioBufferList* inInputData,

  228.         const AudioTimeStamp* inInputTime,

  229.         AudioBufferList* outOutputData,

  230.         const AudioTimeStamp* inOutputTime,

  231.         void* inClientData)

  232. {

  233.     JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inClientData;

  234.     AudioDeviceStop(driver->fDeviceID, MeasureCallback);

  235.     

  236.     jack_log("JackCoreAudioDriver::MeasureCallback called");

  237.     JackMachThread::GetParams(pthread_self(), &driver->fEngineControl->fPeriod, &driver->fEngineControl->fComputation, &driver->fEngineControl->fConstraint);

  238.     

  239.     if (driver->fComputationGrain > 0) {

  240.         jack_log("JackCoreAudioDriver::MeasureCallback : RT thread computation setup to %d percent of period", int(driver->fComputationGrain * 100));

  241.         driver->fEngineControl->fComputation = driver->fEngineControl->fPeriod * driver->fComputationGrain;

  242.     }

  243.     

  244.     // Signal waiting start function...

  245.     driver->fState = true;

  246.     

  247.     // Setup threadded based log function

  248.     set_threaded_log_function();

  249.     return noErr;

  250. }

  251. 

  252. OSStatus JackCoreAudioDriver::SRNotificationCallback(AudioDeviceID inDevice,

  253.         UInt32 inChannel,

  254.         Boolean	isInput,

  255.         AudioDevicePropertyID inPropertyID,

  256.         void* inClientData)

  257. {

  258.     JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inClientData;

  259. 

  260.     switch (inPropertyID) {

  261. 

  262.         case kAudioDevicePropertyNominalSampleRate: {

  263.             jack_log("JackCoreAudioDriver::SRNotificationCallback kAudioDevicePropertyNominalSampleRate");

  264.             driver->fState = true;

  265.             break;

  266.         }

  267.     }

  268. 

  269.     return noErr;

  270. }

  271. 

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

  273. OSStatus JackCoreAudioDriver::DeviceNotificationCallback(AudioDeviceID inDevice,

  274.         UInt32 inChannel,

  275.         Boolean	isInput,

  276.         AudioDevicePropertyID inPropertyID,

  277.         void* inClientData)

  278. {

  279.     JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inClientData;

  280.          

  281.     switch (inPropertyID) {

  282.         

  283.         case kAudioDeviceProcessorOverload: {

  284.             jack_error("JackCoreAudioDriver::DeviceNotificationCallback kAudioDeviceProcessorOverload");

  285.             jack_time_t cur_time = GetMicroSeconds();

  286.             driver->NotifyXRun(cur_time, float(cur_time - driver->fBeginDateUst));   // Better this value than nothing... 

  287.             break;

  288.         }

  289.         

  290.         case kAudioDevicePropertyStreamConfiguration: {

  291.             jack_error("Cannot handle kAudioDevicePropertyStreamConfiguration : server will quit...");

  292.             driver->NotifyFailure(JackBackendError, "Another application has changed the device configuration.");   // Message length limited to JACK_MESSAGE_SIZE

  293.             driver->CloseAUHAL();

  294.             kill(JackTools::GetPID(), SIGINT);

  295.             return kAudioHardwareUnsupportedOperationError;

  296.         }

  297.         

  298.         case kAudioDevicePropertyNominalSampleRate: {

  299.             jack_error("Cannot handle kAudioDevicePropertyNominalSampleRate : server will quit...");

  300.             driver->NotifyFailure(JackBackendError, "Another application has changed the sample rate.");    // Message length limited to JACK_MESSAGE_SIZE

  301.             driver->CloseAUHAL();

  302.             kill(JackTools::GetPID(), SIGINT);

  303.             return kAudioHardwareUnsupportedOperationError;

  304. 		}

  305.             

  306.     }

  307.     return noErr;

  308. }

  309. 

  310. OSStatus JackCoreAudioDriver::GetDeviceIDFromUID(const char* UID, AudioDeviceID* id)

  311. {

  312.     UInt32 size = sizeof(AudioValueTranslation);

  313.     CFStringRef inIUD = CFStringCreateWithCString(NULL, UID, CFStringGetSystemEncoding());

  314.     AudioValueTranslation value = { &inIUD, sizeof(CFStringRef), id, sizeof(AudioDeviceID) };

  315. 

  316.     if (inIUD == NULL) {

  317.         return kAudioHardwareUnspecifiedError;

  318.     } else {

  319.         OSStatus res = AudioHardwareGetProperty(kAudioHardwarePropertyDeviceForUID, &size, &value);

  320.         CFRelease(inIUD);

  321.         jack_log("GetDeviceIDFromUID %s %ld", UID, *id);

  322.         return (*id == kAudioDeviceUnknown) ? kAudioHardwareBadDeviceError : res;

  323.     }

  324. }

  325. 

  326. OSStatus JackCoreAudioDriver::GetDefaultDevice(AudioDeviceID* id)

  327. {

  328.     OSStatus res;

  329.     UInt32 theSize = sizeof(UInt32);

  330.     AudioDeviceID inDefault;

  331.     AudioDeviceID outDefault;

  332. 

  333.     if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &theSize, &inDefault)) != noErr)

  334.         return res;

  335. 

  336.     if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &theSize, &outDefault)) != noErr)

  337.         return res;

  338. 

  339.     jack_log("GetDefaultDevice: input = %ld output = %ld", inDefault, outDefault);

  340. 

  341.     // Get the device only if default input and output are the same

  342.     if (inDefault == outDefault) {

  343.         *id = inDefault;

  344.         return noErr;

  345.     } else {

  346.         jack_error("Default input and output devices are not the same !!");

  347.         return kAudioHardwareBadDeviceError;

  348.     }

  349. }

  350. 

  351. OSStatus JackCoreAudioDriver::GetDefaultInputDevice(AudioDeviceID* id)

  352. {

  353.     OSStatus res;

  354.     UInt32 theSize = sizeof(UInt32);

  355.     AudioDeviceID inDefault;

  356. 

  357.     if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &theSize, &inDefault)) != noErr)

  358.         return res;

  359. 

  360.     jack_log("GetDefaultInputDevice: input = %ld ", inDefault);

  361.     *id = inDefault;

  362.     return noErr;

  363. }

  364. 

  365. OSStatus JackCoreAudioDriver::GetDefaultOutputDevice(AudioDeviceID* id)

  366. {

  367.     OSStatus res;

  368.     UInt32 theSize = sizeof(UInt32);

  369.     AudioDeviceID outDefault;

  370. 

  371.     if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &theSize, &outDefault)) != noErr)

  372.         return res;

  373. 

  374.     jack_log("GetDefaultOutputDevice: output = %ld", outDefault);

  375.     *id = outDefault;

  376.     return noErr;

  377. }

  378. 

  379. OSStatus JackCoreAudioDriver::GetDeviceNameFromID(AudioDeviceID id, char* name)

  380. {

  381.     UInt32 size = 256;

  382.     return AudioDeviceGetProperty(id, 0, false, kAudioDevicePropertyDeviceName, &size, name);

  383. }

  384. 

  385. OSStatus JackCoreAudioDriver::GetTotalChannels(AudioDeviceID device, int& channelCount, bool isInput)

  386. {

  387.     OSStatus err = noErr;

  388.     UInt32	outSize;

  389.     Boolean	outWritable;

  390.  

  391.     channelCount = 0;

  392.     err = AudioDeviceGetPropertyInfo(device, 0, isInput, kAudioDevicePropertyStreamConfiguration, &outSize, &outWritable);

  393.     if (err == noErr) {

  394.         AudioBufferList bufferList[outSize];

  395.         err = AudioDeviceGetProperty(device, 0, isInput, kAudioDevicePropertyStreamConfiguration, &outSize, bufferList);

  396.         if (err == noErr) {

  397.             for (unsigned int i = 0; i < bufferList->mNumberBuffers; i++)

  398.                 channelCount += bufferList->mBuffers[i].mNumberChannels;

  399.         }

  400.     }

  401.     return err;

  402. }

  403. 

  404. JackCoreAudioDriver::JackCoreAudioDriver(const char* name, const char* alias, JackLockedEngine* engine, JackSynchro* table)

  405.         : JackAudioDriver(name, alias, engine, table), 

  406.         fJackInputData(NULL), 

  407.         fDriverOutputData(NULL), 

  408.         fPluginID(0), 

  409.         fState(false), 

  410.         fHogged(false),

  411.         fIOUsage(1.f),

  412.         fComputationGrain(-1.f)

  413. {}

  414. 

  415. JackCoreAudioDriver::~JackCoreAudioDriver()

  416. {}

  417. 

  418. OSStatus JackCoreAudioDriver::DestroyAggregateDevice() 

  419. {

  420.     OSStatus osErr = noErr;

  421.     AudioObjectPropertyAddress pluginAOPA;

  422.     pluginAOPA.mSelector = kAudioPlugInDestroyAggregateDevice;

  423.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  424.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  425.     UInt32 outDataSize;

  426.      

  427.     if (fPluginID > 0)   {

  428.       

  429.         osErr = AudioObjectGetPropertyDataSize(fPluginID, &pluginAOPA, 0, NULL, &outDataSize);

  430.         if (osErr != noErr) {

  431.             jack_error("JackCoreAudioDriver::DestroyAggregateDevice : AudioObjectGetPropertyDataSize error");

  432.             printError(osErr);

  433.             return osErr;

  434.         }

  435.             

  436.         osErr = AudioObjectGetPropertyData(fPluginID, &pluginAOPA, 0, NULL, &outDataSize, &fDeviceID);

  437.         if (osErr != noErr) {

  438.             jack_error("JackCoreAudioDriver::DestroyAggregateDevice : AudioObjectGetPropertyData error");

  439.             printError(osErr);

  440.             return osErr;

  441.         }

  442.         

  443.     }

  444.     

  445.     return noErr;

  446. }

  447.     

  448. OSStatus JackCoreAudioDriver::CreateAggregateDevice(AudioDeviceID captureDeviceID, AudioDeviceID playbackDeviceID, jack_nframes_t samplerate, AudioDeviceID* outAggregateDevice) 

  449. {

  450.     OSStatus err = noErr;

  451.     AudioObjectID sub_device[32];

  452.     UInt32 outSize = sizeof(sub_device);

  453.     

  454.     err = AudioDeviceGetProperty(captureDeviceID, 0, kAudioDeviceSectionGlobal, kAudioAggregateDevicePropertyActiveSubDeviceList, &outSize, sub_device);

  455.     vector<AudioDeviceID> captureDeviceIDArray;

  456.     

  457.     if (err != noErr) {

  458.         jack_log("Input device does not have subdevices");

  459.         captureDeviceIDArray.push_back(captureDeviceID);

  460.     } else {

  461.         int num_devices = outSize / sizeof(AudioObjectID);

  462.         jack_log("Input device has %d subdevices", num_devices);

  463.         for (int i = 0; i < num_devices; i++) {

  464.             captureDeviceIDArray.push_back(sub_device[i]);

  465.         }

  466.     }

  467.     

  468.     err = AudioDeviceGetProperty(playbackDeviceID, 0, kAudioDeviceSectionGlobal, kAudioAggregateDevicePropertyActiveSubDeviceList, &outSize, sub_device);    

  469.     vector<AudioDeviceID> playbackDeviceIDArray;

  470.     

  471.     if (err != noErr) {

  472.         jack_log("Output device does not have subdevices");

  473.         playbackDeviceIDArray.push_back(playbackDeviceID);

  474.     } else {

  475.         int num_devices = outSize / sizeof(AudioObjectID);

  476.         jack_log("Output device has %d subdevices", num_devices);

  477.         for (int i = 0; i < num_devices; i++) {

  478.             playbackDeviceIDArray.push_back(sub_device[i]);

  479.         }

  480.     }

  481.     

  482.     return CreateAggregateDeviceAux(captureDeviceIDArray, playbackDeviceIDArray, samplerate, outAggregateDevice);

  483. }

  484. 

  485. OSStatus JackCoreAudioDriver::CreateAggregateDeviceAux(vector<AudioDeviceID> captureDeviceID, vector<AudioDeviceID> playbackDeviceID, jack_nframes_t samplerate, AudioDeviceID* outAggregateDevice) 

  486. {

  487.     OSStatus osErr = noErr;

  488.     UInt32 outSize;

  489.     Boolean outWritable;

  490.       

  491.     //---------------------------------------------------------------------------

  492.     // Setup SR of both devices otherwise creating AD may fail...

  493.     //---------------------------------------------------------------------------

  494.     for (UInt32 i = 0; i < captureDeviceID.size(); i++) {

  495.         if (SetupSampleRateAux(captureDeviceID[i], samplerate) < 0) {

  496.             jack_error("JackCoreAudioDriver::CreateAggregateDevice : cannot set SR of input device");

  497.         }

  498.     }

  499.     for (UInt32 i = 0; i < playbackDeviceID.size(); i++) {

  500.         if (SetupSampleRateAux(playbackDeviceID[i], samplerate) < 0) {

  501.             jack_error("JackCoreAudioDriver::CreateAggregateDevice : cannot set SR of output device");

  502.         }

  503.     }

  504. 

  505.     //---------------------------------------------------------------------------

  506.     // Start to create a new aggregate by getting the base audio hardware plugin

  507.     //---------------------------------------------------------------------------

  508.     

  509.     char device_name[256];

  510.     for (UInt32 i = 0; i < captureDeviceID.size(); i++) {

  511.         GetDeviceNameFromID(captureDeviceID[i], device_name);

  512.         jack_info("Separated input = '%s' ", device_name);

  513.     }

  514.     

  515.     for (UInt32 i = 0; i < playbackDeviceID.size(); i++) {

  516.         GetDeviceNameFromID(playbackDeviceID[i], device_name);

  517.         jack_info("Separated output = '%s' ", device_name);

  518.     }

  519.    

  520.     osErr = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyPlugInForBundleID, &outSize, &outWritable);

  521.     if (osErr != noErr) {

  522.         jack_error("JackCoreAudioDriver::CreateAggregateDevice : AudioHardwareGetPropertyInfo kAudioHardwarePropertyPlugInForBundleID error");

  523.         printError(osErr);

  524.         return osErr;

  525.     }

  526. 

  527.     AudioValueTranslation pluginAVT;

  528. 

  529.     CFStringRef inBundleRef = CFSTR("com.apple.audio.CoreAudio");

  530.    

  531.     pluginAVT.mInputData = &inBundleRef;

  532.     pluginAVT.mInputDataSize = sizeof(inBundleRef);

  533.     pluginAVT.mOutputData = &fPluginID;

  534.     pluginAVT.mOutputDataSize = sizeof(fPluginID);

  535. 

  536.     osErr = AudioHardwareGetProperty(kAudioHardwarePropertyPlugInForBundleID, &outSize, &pluginAVT);

  537.     if (osErr != noErr) {

  538.         jack_error("JackCoreAudioDriver::CreateAggregateDevice : AudioHardwareGetProperty kAudioHardwarePropertyPlugInForBundleID error");

  539.         printError(osErr);

  540.         return osErr;

  541.     }

  542. 

  543.     //-------------------------------------------------

  544.     // Create a CFDictionary for our aggregate device

  545.     //-------------------------------------------------

  546. 

  547.     CFMutableDictionaryRef aggDeviceDict = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);

  548. 

  549.     CFStringRef AggregateDeviceNameRef = CFSTR("JackDuplex");

  550.     CFStringRef AggregateDeviceUIDRef = CFSTR("com.grame.JackDuplex");

  551.     

  552.     // add the name of the device to the dictionary

  553.     CFDictionaryAddValue(aggDeviceDict, CFSTR(kAudioAggregateDeviceNameKey), AggregateDeviceNameRef);

  554. 

  555.     // add our choice of UID for the aggregate device to the dictionary

  556.     CFDictionaryAddValue(aggDeviceDict, CFSTR(kAudioAggregateDeviceUIDKey), AggregateDeviceUIDRef);

  557.     

  558.     // add a "private aggregate key" to the dictionary

  559.     int value = 1;

  560.     CFNumberRef AggregateDeviceNumberRef = CFNumberCreate(NULL, kCFNumberIntType, &value);

  561.     

  562.     SInt32 system;

  563.     Gestalt(gestaltSystemVersion, &system);

  564.      

  565.     jack_log("JackCoreAudioDriver::CreateAggregateDevice : system version = %x limit = %x", system, 0x00001054);

  566.     

  567.     // Starting with 10.5.4 systems, the AD can be internal... (better)

  568.     if (system < 0x00001054) {

  569.         jack_log("JackCoreAudioDriver::CreateAggregateDevice : public aggregate device....");

  570.     } else {

  571.         jack_log("JackCoreAudioDriver::CreateAggregateDevice : private aggregate device....");

  572.         CFDictionaryAddValue(aggDeviceDict, CFSTR(kAudioAggregateDeviceIsPrivateKey), AggregateDeviceNumberRef);

  573.     }

  574.   

  575.     //-------------------------------------------------

  576.     // Create a CFMutableArray for our sub-device list

  577.     //-------------------------------------------------

  578.     

  579.     // we need to append the UID for each device to a CFMutableArray, so create one here

  580.     CFMutableArrayRef subDevicesArray = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);

  581.     

  582.     vector<CFStringRef> captureDeviceUID;

  583.     for (UInt32 i = 0; i < captureDeviceID.size(); i++) {

  584.         CFStringRef ref = GetDeviceName(captureDeviceID[i]);

  585.         if (ref == NULL)

  586.             return -1;

  587.         captureDeviceUID.push_back(ref);

  588.         // input sub-devices in this example, so append the sub-device's UID to the CFArray

  589.         CFArrayAppendValue(subDevicesArray, ref);

  590.    }

  591.     

  592.     vector<CFStringRef> playbackDeviceUID;

  593.     for (UInt32 i = 0; i < playbackDeviceID.size(); i++) {

  594.         CFStringRef ref = GetDeviceName(playbackDeviceID[i]);

  595.         if (ref == NULL)

  596.             return -1;

  597.         playbackDeviceUID.push_back(ref);

  598.         // output sub-devices in this example, so append the sub-device's UID to the CFArray

  599.         CFArrayAppendValue(subDevicesArray, ref);

  600.     }

  601.   

  602.     //-----------------------------------------------------------------------

  603.     // Feed the dictionary to the plugin, to create a blank aggregate device

  604.     //-----------------------------------------------------------------------

  605.  

  606.     AudioObjectPropertyAddress pluginAOPA;

  607.     pluginAOPA.mSelector = kAudioPlugInCreateAggregateDevice;

  608.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  609.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  610.     UInt32 outDataSize;

  611. 

  612.     osErr = AudioObjectGetPropertyDataSize(fPluginID, &pluginAOPA, 0, NULL, &outDataSize);

  613.     if (osErr != noErr) {

  614.         jack_error("JackCoreAudioDriver::CreateAggregateDevice : AudioObjectGetPropertyDataSize error");

  615.         printError(osErr);

  616.         goto error;

  617.     }

  618.     

  619.     osErr = AudioObjectGetPropertyData(fPluginID, &pluginAOPA, sizeof(aggDeviceDict), &aggDeviceDict, &outDataSize, outAggregateDevice);

  620.     if (osErr != noErr) {

  621.         jack_error("JackCoreAudioDriver::CreateAggregateDevice : AudioObjectGetPropertyData error");

  622.         printError(osErr);

  623.         goto error;

  624.     }

  625. 

  626.     // pause for a bit to make sure that everything completed correctly

  627.     // this is to work around a bug in the HAL where a new aggregate device seems to disappear briefly after it is created

  628.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  629. 

  630.     //-------------------------

  631.     // Set the sub-device list

  632.     //-------------------------

  633. 

  634.     pluginAOPA.mSelector = kAudioAggregateDevicePropertyFullSubDeviceList;

  635.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  636.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  637.     outDataSize = sizeof(CFMutableArrayRef);

  638.     osErr = AudioObjectSetPropertyData(*outAggregateDevice, &pluginAOPA, 0, NULL, outDataSize, &subDevicesArray);

  639.     if (osErr != noErr) {

  640.         jack_error("JackCoreAudioDriver::CreateAggregateDevice : AudioObjectSetPropertyData for sub-device list error");

  641.         printError(osErr);

  642.         goto error;

  643.     }

  644.     

  645.     // pause again to give the changes time to take effect

  646.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  647. 

  648.     //-----------------------

  649.     // Set the master device

  650.     //-----------------------

  651. 

  652.     // set the master device manually (this is the device which will act as the master clock for the aggregate device)

  653.     // pass in the UID of the device you want to use

  654.     pluginAOPA.mSelector = kAudioAggregateDevicePropertyMasterSubDevice;

  655.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  656.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  657.     outDataSize = sizeof(CFStringRef);

  658.     osErr = AudioObjectSetPropertyData(*outAggregateDevice, &pluginAOPA, 0, NULL, outDataSize, &captureDeviceUID[0]);  // First apture is master...

  659.     if (osErr != noErr) {

  660.         jack_error("JackCoreAudioDriver::CreateAggregateDevice : AudioObjectSetPropertyData for master device error");

  661.         printError(osErr);

  662.         goto error;

  663.     }

  664.     

  665.     // pause again to give the changes time to take effect

  666.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  667. 

  668.     //----------

  669.     // Clean up

  670.     //----------

  671.     

  672.     // release the private AD key

  673.     CFRelease(AggregateDeviceNumberRef);

  674. 

  675.     // release the CF objects we have created - we don't need them any more

  676.     CFRelease(aggDeviceDict);

  677.     CFRelease(subDevicesArray);

  678. 

  679.     // release the device UID

  680.     for (UInt32 i = 0; i < captureDeviceUID.size(); i++) {

  681.         CFRelease(captureDeviceUID[i]);

  682.     }

  683.     

  684.     for (UInt32 i = 0; i < playbackDeviceUID.size(); i++) {

  685.         CFRelease(playbackDeviceUID[i]);

  686.     }

  687.     

  688.     jack_log("New aggregate device %ld", *outAggregateDevice);

  689.     return noErr;

  690.     

  691. error:

  692.     DestroyAggregateDevice();

  693.     return -1;

  694. }

  695. 

  696. int JackCoreAudioDriver::SetupDevices(const char* capture_driver_uid, 

  697.                                       const char* playback_driver_uid, 

  698.                                       char* capture_driver_name, 

  699.                                       char* playback_driver_name, 

  700.                                       jack_nframes_t samplerate)

  701. {

  702.     capture_driver_name[0] = 0;

  703.     playback_driver_name[0] = 0;

  704.    

  705.     // Duplex

  706.     if (strcmp(capture_driver_uid, "") != 0 && strcmp(playback_driver_uid, "") != 0) {

  707.         jack_log("JackCoreAudioDriver::Open duplex");

  708.           

  709.         // Same device for capture and playback...

  710.         if (strcmp(capture_driver_uid, playback_driver_uid) == 0)  {

  711.             

  712.             if (GetDeviceIDFromUID(playback_driver_uid, &fDeviceID) != noErr) {

  713.                 jack_log("Will take default in/out");

  714.                 if (GetDefaultDevice(&fDeviceID) != noErr) {

  715.                     jack_error("Cannot open default device");

  716.                     return -1;

  717.                 }

  718.             }

  719.             if (GetDeviceNameFromID(fDeviceID, capture_driver_name) != noErr || GetDeviceNameFromID(fDeviceID, playback_driver_name) != noErr) {

  720.                 jack_error("Cannot get device name from device ID");

  721.                 return -1;

  722.             }

  723.             

  724.         } else {

  725.         

  726.             // Creates aggregate device

  727.             AudioDeviceID captureID, playbackID;

  728.             

  729.             if (GetDeviceIDFromUID(capture_driver_uid, &captureID) != noErr) {

  730.                 jack_log("Will take default input");

  731.                 if (GetDefaultInputDevice(&captureID) != noErr) {

  732.                     jack_error("Cannot open default device");

  733.                     return -1;

  734.                 }

  735.             }

  736. 

  737.             if (GetDeviceIDFromUID(playback_driver_uid, &playbackID) != noErr) {

  738.                 jack_log("Will take default output");

  739.                 if (GetDefaultOutputDevice(&playbackID) != noErr) {

  740.                     jack_error("Cannot open default device");

  741.                     return -1;

  742.                 }

  743.             }

  744. 

  745.             if (CreateAggregateDevice(captureID, playbackID, samplerate, &fDeviceID) != noErr)

  746.                 return -1;

  747.         }

  748. 

  749.     // Capture only

  750.     } else if (strcmp(capture_driver_uid, "") != 0) {

  751.         jack_log("JackCoreAudioDriver::Open capture only");

  752.         if (GetDeviceIDFromUID(capture_driver_uid, &fDeviceID) != noErr) {

  753.             jack_log("Will take default input");

  754.             if (GetDefaultInputDevice(&fDeviceID) != noErr) {

  755.                 jack_error("Cannot open default device");

  756.                 return -1;

  757.             }

  758.         }

  759.         if (GetDeviceNameFromID(fDeviceID, capture_driver_name) != noErr) {

  760.             jack_error("Cannot get device name from device ID");

  761.             return -1;

  762.         }

  763. 

  764.     // Playback only

  765.     } else if (strcmp(playback_driver_uid, "") != 0) {

  766.         jack_log("JackCoreAudioDriver::Open playback only");

  767.         if (GetDeviceIDFromUID(playback_driver_uid, &fDeviceID) != noErr) {

  768.             jack_log("Will take default output");

  769.             if (GetDefaultOutputDevice(&fDeviceID) != noErr) {

  770.                 jack_error("Cannot open default device");

  771.                 return -1;

  772.             }

  773.         }

  774.         if (GetDeviceNameFromID(fDeviceID, playback_driver_name) != noErr) {

  775.             jack_error("Cannot get device name from device ID");

  776.             return -1;

  777.         }

  778. 

  779.     // Use default driver in duplex mode

  780.     } else {

  781.         jack_log("JackCoreAudioDriver::Open default driver");

  782.         if (GetDefaultDevice(&fDeviceID) != noErr) {

  783.             jack_error("Cannot open default device");

  784.             return -1;

  785.         }

  786.         if (GetDeviceNameFromID(fDeviceID, capture_driver_name) != noErr || GetDeviceNameFromID(fDeviceID, playback_driver_name) != noErr) {

  787.             jack_error("Cannot get device name from device ID");

  788.             return -1;

  789.         }

  790.     }

  791.     

  792.     if (fHogged) {

  793.         if (TakeHog()) {

  794.             jack_info("Device = %ld has been hogged", fDeviceID);

  795.         } else {

  796.             jack_error("Cannot hog device = %ld", fDeviceID);

  797.         }

  798.     }

  799. 

  800.     return 0;

  801. }

  802. 

  803. /*

  804. Return the max possible input channels in in_nChannels and output channels in out_nChannels.

  805. */

  806. int JackCoreAudioDriver::SetupChannels(bool capturing, bool playing, int& inchannels, int& outchannels, int& in_nChannels, int& out_nChannels, bool strict)

  807. {

  808.     OSStatus err = noErr;

  809. 

  810.     if (capturing) {

  811.         err = GetTotalChannels(fDeviceID, in_nChannels, true);

  812.         if (err != noErr) {

  813.             jack_error("Cannot get input channel number");

  814.             printError(err);

  815.             return -1;

  816.         } else {

  817.             jack_log("Max input channels : %d", in_nChannels);

  818.         }

  819.     }

  820. 

  821.     if (playing) {

  822.         err = GetTotalChannels(fDeviceID, out_nChannels, false);

  823.         if (err != noErr) {

  824.             jack_error("Cannot get output channel number");

  825.             printError(err);

  826.             return -1;

  827.         } else {

  828.             jack_log("Max output channels : %d", out_nChannels);

  829.         }

  830.     }

  831. 

  832.     if (inchannels > in_nChannels) {

  833.         jack_error("This device hasn't required input channels inchannels = %d in_nChannels = %d", inchannels, in_nChannels);

  834.         if (strict)

  835.             return -1;

  836.     }

  837. 

  838.     if (outchannels > out_nChannels) {

  839.         jack_error("This device hasn't required output channels outchannels = %d out_nChannels = %d", outchannels, out_nChannels);

  840.         if (strict)

  841.             return -1;

  842.     }

  843. 

  844.     if (inchannels == -1) {

  845.         jack_log("Setup max in channels = %d", in_nChannels);

  846.         inchannels = in_nChannels;

  847.     }

  848. 

  849.     if (outchannels == -1) {

  850.         jack_log("Setup max out channels = %d", out_nChannels);

  851.         outchannels = out_nChannels;

  852.     }

  853. 

  854.     return 0;

  855. }

  856. 

  857. int JackCoreAudioDriver::SetupBufferSize(jack_nframes_t buffer_size)

  858. {

  859.     // Setting buffer size

  860.     UInt32 outSize = sizeof(UInt32);

  861.     OSStatus err = AudioDeviceSetProperty(fDeviceID, NULL, 0, false, kAudioDevicePropertyBufferFrameSize, outSize, &buffer_size);

  862.     if (err != noErr) {

  863.         jack_error("Cannot set buffer size %ld", buffer_size);

  864.         printError(err);

  865.         return -1;

  866.     }

  867. 

  868.     return 0;

  869. }

  870. 

  871. int JackCoreAudioDriver::SetupSampleRate(jack_nframes_t samplerate)

  872. {

  873.     return SetupSampleRateAux(fDeviceID, samplerate);

  874. }

  875. 

  876. int JackCoreAudioDriver::SetupSampleRateAux(AudioDeviceID inDevice, jack_nframes_t samplerate)

  877. {

  878.     OSStatus err = noErr;

  879.     UInt32 outSize;

  880.     Float64 sampleRate;

  881. 

  882.     // Get sample rate

  883.     outSize =  sizeof(Float64);

  884.     err = AudioDeviceGetProperty(inDevice, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyNominalSampleRate, &outSize, &sampleRate);

  885.     if (err != noErr) {

  886.         jack_error("Cannot get current sample rate");

  887.         printError(err);

  888.         return -1;

  889.     }

  890. 

  891.     // If needed, set new sample rate

  892.     if (samplerate != (jack_nframes_t)sampleRate) {

  893.         sampleRate = (Float64)samplerate;

  894. 

  895.         // To get SR change notification

  896.         err = AudioDeviceAddPropertyListener(inDevice, 0, true, kAudioDevicePropertyNominalSampleRate, SRNotificationCallback, this);

  897.         if (err != noErr) {

  898.             jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyNominalSampleRate");

  899.             printError(err);

  900.             return -1;

  901.         }

  902.         err = AudioDeviceSetProperty(inDevice, NULL, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyNominalSampleRate, outSize, &sampleRate);

  903.         if (err != noErr) {

  904.             jack_error("Cannot set sample rate = %ld", samplerate);

  905.             printError(err);

  906.             return -1;

  907.         }

  908. 

  909.         // Waiting for SR change notification

  910.         int count = 0;

  911.         while (!fState && count++ < WAIT_COUNTER) {

  912.             usleep(100000);

  913.             jack_log("Wait count = %d", count);

  914.         }

  915. 

  916.         // Remove SR change notification

  917.         AudioDeviceRemovePropertyListener(inDevice, 0, true, kAudioDevicePropertyNominalSampleRate, SRNotificationCallback);

  918.     }

  919. 

  920.     return 0;

  921. }

  922. 

  923. int JackCoreAudioDriver::OpenAUHAL(bool capturing,

  924.                                    bool playing,

  925.                                    int inchannels,

  926.                                    int outchannels,

  927.                                    int in_nChannels,

  928.                                    int out_nChannels,

  929.                                    jack_nframes_t buffer_size,

  930.                                    jack_nframes_t samplerate)

  931. {

  932.     ComponentResult err1;

  933.     UInt32 enableIO;

  934.     AudioStreamBasicDescription srcFormat, dstFormat;

  935.     AudioDeviceID currAudioDeviceID;

  936.     UInt32 size;

  937. 

  938.     jack_log("OpenAUHAL capturing = %d playing = %d inchannels = %d outchannels = %d in_nChannels = %d out_nChannels = %d", capturing, playing, inchannels, outchannels, in_nChannels, out_nChannels);

  939. 

  940.     if (inchannels == 0 && outchannels == 0) {

  941.         jack_error("No input and output channels...");

  942.         return -1;

  943.     }

  944.          

  945.     // AUHAL

  946.     ComponentDescription cd = {kAudioUnitType_Output, kAudioUnitSubType_HALOutput, kAudioUnitManufacturer_Apple, 0, 0};

  947.     Component HALOutput = FindNextComponent(NULL, &cd);

  948. 

  949.     err1 = OpenAComponent(HALOutput, &fAUHAL);

  950.     if (err1 != noErr) {

  951.         jack_error("Error calling OpenAComponent");

  952.         printError(err1);

  953.         goto error;

  954.     }

  955. 

  956.     err1 = AudioUnitInitialize(fAUHAL);

  957.     if (err1 != noErr) {

  958.         jack_error("Cannot initialize AUHAL unit");

  959.         printError(err1);

  960.         goto error;

  961.     }

  962. 

  963.     // Start I/O

  964.     if (capturing && inchannels > 0) {

  965.         enableIO = 1;

  966.         jack_log("Setup AUHAL input on");

  967.     } else {

  968.         enableIO = 0;

  969.         jack_log("Setup AUHAL input off");

  970.     }

  971.     

  972.     err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, 1, &enableIO, sizeof(enableIO));

  973.     if (err1 != noErr) {

  974.         jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input");

  975.         printError(err1);

  976.         goto error;

  977.     }

  978. 

  979.     if (playing && outchannels > 0) {

  980.         enableIO = 1;

  981.         jack_log("Setup AUHAL output on");

  982.     } else {

  983.         enableIO = 0;

  984.         jack_log("Setup AUHAL output off");

  985.     }

  986.     

  987.     err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Output, 0, &enableIO, sizeof(enableIO));

  988.     if (err1 != noErr) {

  989.         jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_EnableIO,kAudioUnitScope_Output");

  990.         printError(err1);

  991.         goto error;

  992.     }

  993.     

  994.     size = sizeof(AudioDeviceID);

  995.     err1 = AudioUnitGetProperty(fAUHAL, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &currAudioDeviceID, &size);

  996.     if (err1 != noErr) {

  997.         jack_error("Error calling AudioUnitGetProperty - kAudioOutputUnitProperty_CurrentDevice");

  998.         printError(err1);

  999.         goto error;

  1000.     } else {

  1001.         jack_log("AudioUnitGetPropertyCurrentDevice = %d", currAudioDeviceID);

  1002.     }

  1003. 

  1004.     // Setup up choosen device, in both input and output cases

  1005.     err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &fDeviceID, sizeof(AudioDeviceID));

  1006.     if (err1 != noErr) {

  1007.         jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_CurrentDevice");

  1008.         printError(err1);

  1009.         goto error;

  1010.     }

  1011.   

  1012.     // Set buffer size

  1013.     if (capturing && inchannels > 0) {

  1014.         err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, 1, (UInt32*)&buffer_size, sizeof(UInt32));

  1015.         if (err1 != noErr) {

  1016.             jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_MaximumFramesPerSlice");

  1017.             printError(err1);

  1018.             goto error;

  1019.         }

  1020.     }

  1021. 

  1022.     if (playing && outchannels > 0) {

  1023.         err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, 0, (UInt32*)&buffer_size, sizeof(UInt32));

  1024.         if (err1 != noErr) {

  1025.             jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_MaximumFramesPerSlice");

  1026.             printError(err1);

  1027.             goto error;

  1028.         }

  1029.     }

  1030. 

  1031.     // Setup channel map

  1032.     if (capturing && inchannels > 0 && inchannels < in_nChannels) {

  1033.         SInt32 chanArr[in_nChannels];

  1034.         for (int i = 0; i < in_nChannels; i++) {

  1035.             chanArr[i] = -1;

  1036.         }

  1037.         for (int i = 0; i < inchannels; i++) {

  1038.             chanArr[i] = i;

  1039.         }

  1040.         AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_ChannelMap , kAudioUnitScope_Input, 1, chanArr, sizeof(SInt32) * in_nChannels);

  1041.         if (err1 != noErr) {

  1042.             jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_ChannelMap 1");

  1043.             printError(err1);

  1044.             goto error;

  1045.         }

  1046.     }

  1047. 

  1048.     if (playing && outchannels > 0 && outchannels < out_nChannels) {

  1049.         SInt32 chanArr[out_nChannels];

  1050.         for (int i = 0;	i < out_nChannels; i++) {

  1051.             chanArr[i] = -1;

  1052.         }

  1053.         for (int i = 0; i < outchannels; i++) {

  1054.             chanArr[i] = i;

  1055.         }

  1056.         err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_ChannelMap, kAudioUnitScope_Output, 0, chanArr, sizeof(SInt32) * out_nChannels);

  1057.         if (err1 != noErr) {

  1058.             jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_ChannelMap 0");

  1059.             printError(err1);

  1060.             goto error;

  1061.         }

  1062.     }

  1063. 

  1064.     // Setup stream converters

  1065.     if (capturing && inchannels > 0) {

  1066.     

  1067.         size = sizeof(AudioStreamBasicDescription);

  1068.         err1 = AudioUnitGetProperty(fAUHAL, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 0, &srcFormat, &size);

  1069.         if (err1 != noErr) {

  1070.             jack_error("Error calling AudioUnitGetProperty - kAudioUnitProperty_StreamFormat kAudioUnitScope_Input");

  1071.             printError(err1);

  1072.             goto error;

  1073.         }

  1074.         PrintStreamDesc(&srcFormat);

  1075.               

  1076.         jack_log("Setup AUHAL input stream converter SR = %ld", samplerate);

  1077.         srcFormat.mSampleRate = samplerate;

  1078.         srcFormat.mFormatID = kAudioFormatLinearPCM;

  1079.         srcFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;

  1080.         srcFormat.mBytesPerPacket = sizeof(float);

  1081.         srcFormat.mFramesPerPacket = 1;

  1082.         srcFormat.mBytesPerFrame = sizeof(float);

  1083.         srcFormat.mChannelsPerFrame = inchannels;

  1084.         srcFormat.mBitsPerChannel = 32;

  1085.         PrintStreamDesc(&srcFormat);

  1086.       

  1087.         err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 1, &srcFormat, sizeof(AudioStreamBasicDescription));

  1088.         

  1089.         if (err1 != noErr) {

  1090.             jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_StreamFormat kAudioUnitScope_Input");

  1091.             printError(err1);

  1092.             goto error;

  1093.         }

  1094.     }

  1095. 

  1096.     if (playing && outchannels > 0) {

  1097.     

  1098.         size = sizeof(AudioStreamBasicDescription);

  1099.         err1 = AudioUnitGetProperty(fAUHAL, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 1, &dstFormat, &size);

  1100.         if (err1 != noErr) {

  1101.             jack_error("Error calling AudioUnitGetProperty - kAudioUnitProperty_StreamFormat kAudioUnitScope_Output");

  1102.             printError(err1);

  1103.             goto error;

  1104.         }

  1105.         PrintStreamDesc(&dstFormat);

  1106.          

  1107.         jack_log("Setup AUHAL output stream converter SR = %ld", samplerate);

  1108.         dstFormat.mSampleRate = samplerate;

  1109.         dstFormat.mFormatID = kAudioFormatLinearPCM;

  1110.         dstFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;

  1111.         dstFormat.mBytesPerPacket = sizeof(float);

  1112.         dstFormat.mFramesPerPacket = 1;

  1113.         dstFormat.mBytesPerFrame = sizeof(float);

  1114.         dstFormat.mChannelsPerFrame = outchannels;

  1115.         dstFormat.mBitsPerChannel = 32;

  1116.         PrintStreamDesc(&dstFormat);

  1117.        

  1118.         err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &dstFormat, sizeof(AudioStreamBasicDescription));

  1119.         

  1120.         if (err1 != noErr) {

  1121.             jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_StreamFormat kAudioUnitScope_Output");

  1122.             printError(err1);

  1123.             goto error;

  1124.         }

  1125.     }

  1126. 

  1127.     // Setup callbacks

  1128.     if (inchannels > 0 && outchannels == 0) {

  1129.         AURenderCallbackStruct output;

  1130.         output.inputProc = Render;

  1131.         output.inputProcRefCon = this;

  1132.         err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_SetInputCallback, kAudioUnitScope_Global, 0, &output, sizeof(output));

  1133.         if (err1 != noErr) {

  1134.             jack_error("Error calling  AudioUnitSetProperty - kAudioUnitProperty_SetRenderCallback 1");

  1135.             printError(err1);

  1136.             goto error;

  1137.         }

  1138.     } else {

  1139.         AURenderCallbackStruct output;

  1140.         output.inputProc = Render;

  1141.         output.inputProcRefCon = this;

  1142.         err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, 0, &output, sizeof(output));

  1143.         if (err1 != noErr) {

  1144.             jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_SetRenderCallback 0");

  1145.             printError(err1);

  1146.             goto error;

  1147.         }

  1148.     }

  1149. 

  1150.     return 0;

  1151.     

  1152. error:

  1153.     CloseAUHAL();

  1154.     return -1;

  1155. }

  1156. 

  1157. int JackCoreAudioDriver::SetupBuffers(int inchannels)

  1158. {

  1159.     // Prepare buffers

  1160.     fJackInputData = (AudioBufferList*)malloc(sizeof(UInt32) + inchannels * sizeof(AudioBuffer));

  1161.     fJackInputData->mNumberBuffers = inchannels;

  1162.     for (int i = 0; i < fCaptureChannels; i++) {

  1163.         fJackInputData->mBuffers[i].mNumberChannels = 1;

  1164.         fJackInputData->mBuffers[i].mDataByteSize = fEngineControl->fBufferSize * sizeof(float);

  1165.     }

  1166.     return 0;

  1167. }

  1168. 

  1169. void JackCoreAudioDriver::DisposeBuffers()

  1170. {

  1171.     if (fJackInputData) {

  1172.         free(fJackInputData);

  1173.         fJackInputData = 0;

  1174.     }

  1175. }

  1176. 

  1177. void JackCoreAudioDriver::CloseAUHAL()

  1178. {

  1179.     AudioUnitUninitialize(fAUHAL);

  1180.     CloseComponent(fAUHAL);

  1181. }

  1182. 

  1183. int JackCoreAudioDriver::AddListeners()

  1184. {

  1185.     OSStatus err = noErr;

  1186. 

  1187.     // Add listeners

  1188.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDeviceProcessorOverload, DeviceNotificationCallback, this);

  1189.     if (err != noErr) {

  1190.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDeviceProcessorOverload");

  1191.         printError(err);

  1192.         return -1;

  1193.     }

  1194. 

  1195.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioHardwarePropertyDevices, DeviceNotificationCallback, this);

  1196.     if (err != noErr) {

  1197.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioHardwarePropertyDevices");

  1198.         printError(err);

  1199.         return -1;

  1200.     }

  1201. 

  1202.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, DeviceNotificationCallback, this);

  1203.     if (err != noErr) {

  1204.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyNominalSampleRate");

  1205.         printError(err);

  1206.         return -1;

  1207.     }

  1208. 

  1209.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyDeviceIsRunning, DeviceNotificationCallback, this);

  1210.     if (err != noErr) {

  1211.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyDeviceIsRunning");

  1212.         printError(err);

  1213.         return -1;

  1214.     }

  1215. 

  1216.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback, this);

  1217.     if (err != noErr) {

  1218.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyStreamConfiguration");

  1219.         printError(err);

  1220.         return -1;

  1221.     }

  1222. 

  1223.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, false, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback, this);

  1224.     if (err != noErr) {

  1225.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyStreamConfiguration");

  1226.         printError(err);

  1227.         return -1;

  1228.     }

  1229. 

  1230.     if (!fEngineControl->fSyncMode && fIOUsage != 1.f) {

  1231.         UInt32 outSize = sizeof(float);

  1232.         err = AudioDeviceSetProperty(fDeviceID, NULL, 0, false, kAudioDevicePropertyIOCycleUsage, outSize, &fIOUsage);

  1233.         if (err != noErr) {

  1234.             jack_error("Error calling AudioDeviceSetProperty kAudioDevicePropertyIOCycleUsage");

  1235.             printError(err);

  1236.         }

  1237.     }

  1238. 

  1239.     return 0;

  1240. }

  1241. 

  1242. void JackCoreAudioDriver::RemoveListeners()

  1243. {

  1244.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDeviceProcessorOverload, DeviceNotificationCallback);

  1245.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioHardwarePropertyDevices, DeviceNotificationCallback);

  1246.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, DeviceNotificationCallback);

  1247.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyDeviceIsRunning, DeviceNotificationCallback);

  1248.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback);

  1249.     AudioDeviceRemovePropertyListener(fDeviceID, 0, false, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback);

  1250. }

  1251. 

  1252. int JackCoreAudioDriver::Open(jack_nframes_t buffer_size,

  1253.                               jack_nframes_t samplerate,

  1254.                               bool capturing,

  1255.                               bool playing,

  1256.                               int inchannels,

  1257.                               int outchannels,

  1258.                               bool monitor,

  1259.                               const char* capture_driver_uid,

  1260.                               const char* playback_driver_uid,

  1261.                               jack_nframes_t capture_latency,

  1262.                               jack_nframes_t playback_latency,

  1263.                               int async_output_latency,

  1264.                               int computation_grain,

  1265.                               bool hogged)

  1266. {

  1267.     int in_nChannels = 0;

  1268.     int out_nChannels = 0;

  1269.     char capture_driver_name[256];

  1270.     char playback_driver_name[256];

  1271. 

  1272.     // Keep initial state

  1273.     fCapturing = capturing;

  1274.     fPlaying = playing;

  1275.     fInChannels = inchannels;

  1276.     fOutChannels = outchannels;

  1277.     fMonitor = monitor;

  1278.     strcpy(fCaptureUID, capture_driver_uid);

  1279.     strcpy(fPlaybackUID, playback_driver_uid);

  1280.     fCaptureLatency = capture_latency;

  1281.     fPlaybackLatency = playback_latency;

  1282.     fIOUsage = float(async_output_latency) / 100.f;

  1283.     fComputationGrain = float(computation_grain) / 100.f;

  1284.     fHogged = hogged;

  1285.     

  1286.     SInt32 major;

  1287.     SInt32 minor;

  1288.     Gestalt(gestaltSystemVersionMajor, &major);

  1289.     Gestalt(gestaltSystemVersionMinor, &minor);

  1290.     

  1291.     // Starting with 10.6 systems, the HAL notification thread is created internally

  1292.     if (major == 10 && minor >= 6) {

  1293.         CFRunLoopRef theRunLoop = NULL;

  1294.         AudioObjectPropertyAddress theAddress = { kAudioHardwarePropertyRunLoop, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };

  1295.         OSStatus theError = AudioObjectSetPropertyData (kAudioObjectSystemObject, &theAddress, 0, NULL, sizeof(CFRunLoopRef), &theRunLoop);

  1296.         if (theError != noErr) {

  1297.             jack_error("JackCoreAudioDriver::Open kAudioHardwarePropertyRunLoop error");

  1298.         }

  1299.     }

  1300. 

  1301.     if (SetupDevices(capture_driver_uid, playback_driver_uid, capture_driver_name, playback_driver_name, samplerate) < 0)

  1302.         goto error;

  1303. 

  1304.     // Generic JackAudioDriver Open

  1305.     if (JackAudioDriver::Open(buffer_size, samplerate, capturing, playing, inchannels, outchannels, monitor, capture_driver_name, playback_driver_name, capture_latency, playback_latency) != 0)

  1306.         goto error;

  1307. 

  1308.     if (SetupChannels(capturing, playing, inchannels, outchannels, in_nChannels, out_nChannels, true) < 0)

  1309.         goto error;

  1310. 

  1311.     if (SetupBufferSize(buffer_size) < 0)

  1312.         goto error;

  1313.         

  1314.     if (SetupSampleRate(samplerate) < 0)

  1315.         goto error;

  1316.  

  1317.     if (OpenAUHAL(capturing, playing, inchannels, outchannels, in_nChannels, out_nChannels, buffer_size, samplerate) < 0)

  1318.         goto error;

  1319. 

  1320.     if (capturing && inchannels > 0)

  1321.         if (SetupBuffers(inchannels) < 0)

  1322.             goto error;

  1323. 

  1324.     if (AddListeners() < 0)

  1325.         goto error;

  1326.   

  1327.     // Core driver may have changed the in/out values

  1328.     fCaptureChannels = inchannels;

  1329.     fPlaybackChannels = outchannels;

  1330.     return noErr;

  1331. 

  1332. error:

  1333.     Close();

  1334.     return -1;

  1335. }

  1336. 

  1337. int JackCoreAudioDriver::Close()

  1338. {

  1339.     jack_log("JackCoreAudioDriver::Close");

  1340.     Stop();

  1341.     JackAudioDriver::Close();

  1342.     RemoveListeners();

  1343.     DisposeBuffers();

  1344.     CloseAUHAL();

  1345.     DestroyAggregateDevice();

  1346.     return 0;

  1347. }

  1348. 

  1349. int JackCoreAudioDriver::Attach()

  1350. {

  1351.     OSStatus err;

  1352.     JackPort* port;

  1353.     jack_port_id_t port_index;

  1354.     UInt32 size;

  1355.     Boolean isWritable;

  1356.     char channel_name[64];

  1357.     char name[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];

  1358.     char alias[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];

  1359.     unsigned long port_flags = JackPortIsOutput | JackPortIsPhysical | JackPortIsTerminal;

  1360. 

  1361.     jack_log("JackCoreAudioDriver::Attach fBufferSize %ld fSampleRate %ld", fEngineControl->fBufferSize, fEngineControl->fSampleRate);

  1362. 

  1363.     for (int i = 0; i < fCaptureChannels; i++) {

  1364. 

  1365.         err = AudioDeviceGetPropertyInfo(fDeviceID, i + 1, true, kAudioDevicePropertyChannelName, &size, &isWritable);

  1366.         if (err != noErr)

  1367.             jack_log("AudioDeviceGetPropertyInfo kAudioDevicePropertyChannelName error ");

  1368.         if (err == noErr && size > 0) {

  1369.             err = AudioDeviceGetProperty(fDeviceID, i + 1, true, kAudioDevicePropertyChannelName, &size, channel_name);

  1370.             if (err != noErr)

  1371.                 jack_log("AudioDeviceGetProperty kAudioDevicePropertyChannelName error ");

  1372.             snprintf(alias, sizeof(alias) - 1, "%s:%s:out_%s%u", fAliasName, fCaptureDriverName, channel_name, i + 1);

  1373.         } else {

  1374.             snprintf(alias, sizeof(alias) - 1, "%s:%s:out%u", fAliasName, fCaptureDriverName, i + 1);

  1375.         }

  1376. 

  1377.         snprintf(name, sizeof(name) - 1, "%s:capture_%d", fClientControl.fName, i + 1);

  1378. 

  1379.         if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize)) == NO_PORT) {

  1380.             jack_error("Cannot register port for %s", name);

  1381.             return -1;

  1382.         }

  1383. 

  1384.         size = sizeof(UInt32);

  1385.         UInt32 value1 = 0;

  1386.         UInt32 value2 = 0;

  1387.         err = AudioDeviceGetProperty(fDeviceID, 0, true, kAudioDevicePropertyLatency, &size, &value1);

  1388.         if (err != noErr)

  1389.             jack_log("AudioDeviceGetProperty kAudioDevicePropertyLatency error ");

  1390.         err = AudioDeviceGetProperty(fDeviceID, 0, true, kAudioDevicePropertySafetyOffset, &size, &value2);

  1391.         if (err != noErr)

  1392.             jack_log("AudioDeviceGetProperty kAudioDevicePropertySafetyOffset error ");

  1393. 

  1394.         port = fGraphManager->GetPort(port_index);

  1395.         port->SetAlias(alias);

  1396.         port->SetLatency(fEngineControl->fBufferSize + value1 + value2 + fCaptureLatency);

  1397.         fCapturePortList[i] = port_index;

  1398.     }

  1399. 

  1400.     port_flags = JackPortIsInput | JackPortIsPhysical | JackPortIsTerminal;

  1401. 

  1402.     for (int i = 0; i < fPlaybackChannels; i++) {

  1403. 

  1404.         err = AudioDeviceGetPropertyInfo(fDeviceID, i + 1, false, kAudioDevicePropertyChannelName, &size, &isWritable);

  1405.         if (err != noErr)

  1406.             jack_log("AudioDeviceGetPropertyInfo kAudioDevicePropertyChannelName error ");

  1407.         if (err == noErr && size > 0) {

  1408.             err = AudioDeviceGetProperty(fDeviceID, i + 1, false, kAudioDevicePropertyChannelName, &size, channel_name);

  1409.             if (err != noErr)

  1410.                 jack_log("AudioDeviceGetProperty kAudioDevicePropertyChannelName error ");

  1411.             snprintf(alias, sizeof(alias) - 1, "%s:%s:in_%s%u", fAliasName, fPlaybackDriverName, channel_name, i + 1);

  1412.         } else {

  1413.             snprintf(alias, sizeof(alias) - 1, "%s:%s:in%u", fAliasName, fPlaybackDriverName, i + 1);

  1414.         }

  1415. 

  1416.         snprintf(name, sizeof(name) - 1, "%s:playback_%d", fClientControl.fName, i + 1);

  1417. 

  1418.         if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize)) == NO_PORT) {

  1419.             jack_error("Cannot register port for %s", name);

  1420.             return -1;

  1421.         }

  1422. 

  1423.         size = sizeof(UInt32);

  1424.         UInt32 value1 = 0;

  1425.         UInt32 value2 = 0;

  1426.         err = AudioDeviceGetProperty(fDeviceID, 0, false, kAudioDevicePropertyLatency, &size, &value1);

  1427.         if (err != noErr)

  1428.             jack_log("AudioDeviceGetProperty kAudioDevicePropertyLatency error ");

  1429.         err = AudioDeviceGetProperty(fDeviceID, 0, false, kAudioDevicePropertySafetyOffset, &size, &value2);

  1430.         if (err != noErr)

  1431.             jack_log("AudioDeviceGetProperty kAudioDevicePropertySafetyOffset error ");

  1432. 

  1433.         port = fGraphManager->GetPort(port_index);

  1434.         port->SetAlias(alias);

  1435.         // Add more latency if "async" mode is used...

  1436.         port->SetLatency(fEngineControl->fBufferSize + ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize * fIOUsage) + value1 + value2 + fPlaybackLatency);

  1437.         fPlaybackPortList[i] = port_index;

  1438. 

  1439.         // Monitor ports

  1440.         if (fWithMonitorPorts) {

  1441.             jack_log("Create monitor port ");

  1442.             snprintf(name, sizeof(name) - 1, "%s:monitor_%u", fClientControl.fName, i + 1);

  1443.             if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, fEngineControl->fBufferSize)) == NO_PORT) {

  1444.                 jack_error("Cannot register monitor port for %s", name);

  1445.                 return -1;

  1446.             } else {

  1447.                 port = fGraphManager->GetPort(port_index);

  1448.                 port->SetAlias(alias);

  1449.                 port->SetLatency(fEngineControl->fBufferSize);

  1450.                 fMonitorPortList[i] = port_index;

  1451.             }

  1452.         }

  1453.     }

  1454. 

  1455.     // Input buffers do no change : prepare them only once

  1456.     for (int i = 0; i < fCaptureChannels; i++) {

  1457.         fJackInputData->mBuffers[i].mData = GetInputBuffer(i);

  1458.     }

  1459. 

  1460.     return 0;

  1461. }

  1462. 

  1463. int JackCoreAudioDriver::Start()

  1464. {

  1465.     jack_log("JackCoreAudioDriver::Start");

  1466.     JackAudioDriver::Start();

  1467. /*

  1468. #ifdef MAC_OS_X_VERSION_10_5

  1469.     OSStatus err = AudioDeviceCreateIOProcID(fDeviceID, MeasureCallback, this, &fMesureCallbackID);

  1470. #else

  1471.     OSStatus err = AudioDeviceAddIOProc(fDeviceID, MeasureCallback, this);

  1472. #endif

  1473. */

  1474.     OSStatus err = AudioDeviceAddIOProc(fDeviceID, MeasureCallback, this);

  1475.     

  1476.     if (err != noErr)

  1477.         return -1;

  1478. 

  1479.     err = AudioOutputUnitStart(fAUHAL);

  1480.     if (err != noErr)

  1481.         return -1;

  1482. 

  1483.     if ((err = AudioDeviceStart(fDeviceID, MeasureCallback)) != noErr) {

  1484.         jack_error("Cannot start MeasureCallback");

  1485.         printError(err);

  1486.         return -1;

  1487.     }

  1488.     

  1489.     // Waiting for Measure callback to be called ( = driver has started)

  1490.     fState = false;

  1491.     int count = 0;

  1492.     while (!fState && count++ < WAIT_COUNTER) {

  1493.         usleep(100000);

  1494.         jack_log("JackCoreAudioDriver::Start wait count = %d", count);

  1495.     }

  1496.     

  1497.     if (count < WAIT_COUNTER) {

  1498.         jack_info("CoreAudio driver is running...");

  1499.         return 0;

  1500.     } else {

  1501.         jack_error("CoreAudio driver cannot start...");

  1502.         return -1;

  1503.     }

  1504. }

  1505. 

  1506. int JackCoreAudioDriver::Stop()

  1507. {

  1508.     jack_log("JackCoreAudioDriver::Stop");

  1509.     AudioDeviceStop(fDeviceID, MeasureCallback);

  1510. /*

  1511. #ifdef MAC_OS_X_VERSION_10_5

  1512.     AudioDeviceDestroyIOProcID(fDeviceID, fMesureCallbackID);

  1513. #else

  1514.     AudioDeviceRemoveIOProc(fDeviceID, MeasureCallback);

  1515. #endif

  1516. */

  1517.     AudioDeviceRemoveIOProc(fDeviceID, MeasureCallback);

  1518.     return (AudioOutputUnitStop(fAUHAL) == noErr) ? 0 : -1;

  1519. }

  1520. 

  1521. int JackCoreAudioDriver::SetBufferSize(jack_nframes_t buffer_size)

  1522. {

  1523.     OSStatus err;

  1524.     UInt32 outSize = sizeof(UInt32);

  1525. 

  1526.     err = AudioDeviceSetProperty(fDeviceID, NULL, 0, false, kAudioDevicePropertyBufferFrameSize, outSize, &buffer_size);

  1527.     if (err != noErr) {

  1528.         jack_error("Cannot set buffer size %ld", buffer_size);

  1529.         printError(err);

  1530.         return -1;

  1531.     }

  1532. 

  1533.     JackAudioDriver::SetBufferSize(buffer_size); // never fails

  1534. 

  1535.     // Input buffers do no change : prepare them only once

  1536.     for (int i = 0; i < fCaptureChannels; i++) {

  1537.         fJackInputData->mBuffers[i].mNumberChannels = 1;

  1538.         fJackInputData->mBuffers[i].mDataByteSize = fEngineControl->fBufferSize * sizeof(float);

  1539.         fJackInputData->mBuffers[i].mData = GetInputBuffer(i);

  1540.     }

  1541. 

  1542.     return 0;

  1543. }

  1544. 

  1545. bool JackCoreAudioDriver::TakeHogAux(AudioDeviceID deviceID, bool isInput)

  1546. {

  1547.     pid_t hog_pid;

  1548.     OSStatus err;

  1549. 

  1550.     UInt32 propSize = sizeof(hog_pid);

  1551.     err = AudioDeviceGetProperty(deviceID, 0, isInput, kAudioDevicePropertyHogMode, &propSize, &hog_pid);

  1552.     if (err) {

  1553.         jack_error("Cannot read hog state...");

  1554.         printError(err);

  1555.     }

  1556. 

  1557.     if (hog_pid != getpid()) {

  1558.         hog_pid = getpid();

  1559.         err = AudioDeviceSetProperty(deviceID, 0, 0, isInput, kAudioDevicePropertyHogMode, propSize, &hog_pid);

  1560.         if (err != noErr) {

  1561.             jack_error("Can't hog device = %d because it's being hogged by another program", deviceID);

  1562.             return false;

  1563.         }

  1564.     }

  1565.     

  1566.     return true;

  1567. }

  1568.     

  1569. bool JackCoreAudioDriver::TakeHog()

  1570. {

  1571.     OSStatus err = noErr;

  1572.     AudioObjectID sub_device[32];

  1573.     UInt32 outSize = sizeof(sub_device);

  1574.     err = AudioDeviceGetProperty(fDeviceID, 0, kAudioDeviceSectionGlobal, kAudioAggregateDevicePropertyActiveSubDeviceList, &outSize, sub_device);

  1575.     

  1576.     if (err != noErr) {

  1577.         jack_log("Device does not have subdevices");

  1578.         return TakeHogAux(fDeviceID, true);

  1579.     } else {

  1580.         int num_devices = outSize / sizeof(AudioObjectID);

  1581.         jack_log("Device does has %d subdevices", num_devices);

  1582.         for (int i = 0; i < num_devices; i++) {

  1583.             if (!TakeHogAux(sub_device[i], true)) {

  1584.                 return false;

  1585.             }

  1586.         }

  1587.         return true;

  1588.     }

  1589. }

  1590.     

  1591. bool JackCoreAudioDriver::IsAggregateDevice(AudioDeviceID device)

  1592. {

  1593.     UInt32 deviceType, outSize = sizeof(UInt32);

  1594.     OSStatus err = AudioDeviceGetProperty(device, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyTransportType, &outSize, &deviceType);

  1595.     

  1596.     if (err != noErr) {

  1597.         jack_log("JackCoreAudioDriver::IsAggregateDevice kAudioDevicePropertyTransportType error");

  1598.         return false;

  1599.     } else {

  1600.         return (deviceType == kAudioDeviceTransportTypeAggregate);

  1601.     }

  1602. }

  1603. 

  1604. 

  1605. } // end of namespace

  1606. 

  1607. 

  1608. #ifdef __cplusplus

  1609. extern "C"

  1610. {

  1611. #endif

  1612. 

  1613.     SERVER_EXPORT jack_driver_desc_t* driver_get_descriptor() 

  1614.     {

  1615.         jack_driver_desc_t *desc;

  1616.         unsigned int i;

  1617.         desc = (jack_driver_desc_t*)calloc(1, sizeof(jack_driver_desc_t));

  1618. 

  1619.         strcpy(desc->name, "coreaudio");                                    // size MUST be less then JACK_DRIVER_NAME_MAX + 1

  1620.         strcpy(desc->desc, "Apple CoreAudio API based audio backend");      // size MUST be less then JACK_DRIVER_PARAM_DESC + 1

  1621.         

  1622.         desc->nparams = 16;

  1623.         desc->params = (jack_driver_param_desc_t*)calloc(desc->nparams, sizeof(jack_driver_param_desc_t));

  1624. 

  1625.         i = 0;

  1626.         strcpy(desc->params[i].name, "channels");

  1627.         desc->params[i].character = 'c';

  1628.         desc->params[i].type = JackDriverParamInt;

  1629.         desc->params[i].value.ui = -1;

  1630.         strcpy(desc->params[i].short_desc, "Maximum number of channels");

  1631.         strcpy(desc->params[i].long_desc, "Maximum number of channels. If -1, max possible number of channels will be used");

  1632. 

  1633.         i++;

  1634.         strcpy(desc->params[i].name, "inchannels");

  1635.         desc->params[i].character = 'i';

  1636.         desc->params[i].type = JackDriverParamInt;

  1637.         desc->params[i].value.ui = -1;

  1638.         strcpy(desc->params[i].short_desc, "Maximum number of input channels");

  1639.         strcpy(desc->params[i].long_desc, "Maximum number of input channels. If -1, max possible number of input channels will be used");

  1640. 

  1641.         i++;

  1642.         strcpy(desc->params[i].name, "outchannels");

  1643.         desc->params[i].character = 'o';

  1644.         desc->params[i].type = JackDriverParamInt;

  1645.         desc->params[i].value.ui = -1;

  1646.         strcpy(desc->params[i].short_desc, "Maximum number of output channels");

  1647.         strcpy(desc->params[i].long_desc, "Maximum number of output channels. If -1, max possible number of output channels will be used");

  1648. 

  1649.         i++;

  1650.         strcpy(desc->params[i].name, "capture");

  1651.         desc->params[i].character = 'C';

  1652.         desc->params[i].type = JackDriverParamString;

  1653.         strcpy(desc->params[i].short_desc, "Input CoreAudio device name");

  1654.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1655. 

  1656.         i++;

  1657.         strcpy(desc->params[i].name, "playback");

  1658.         desc->params[i].character = 'P';

  1659.         desc->params[i].type = JackDriverParamString;

  1660.         strcpy(desc->params[i].short_desc, "Output CoreAudio device name");

  1661.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1662. 

  1663.         i++;

  1664.         strcpy (desc->params[i].name, "monitor");

  1665.         desc->params[i].character = 'm';

  1666.         desc->params[i].type = JackDriverParamBool;

  1667.         desc->params[i].value.i = 0;

  1668.         strcpy(desc->params[i].short_desc, "Provide monitor ports for the output");

  1669.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1670. 

  1671.         i++;

  1672.         strcpy(desc->params[i].name, "duplex");

  1673.         desc->params[i].character = 'D';

  1674.         desc->params[i].type = JackDriverParamBool;

  1675.         desc->params[i].value.i = TRUE;

  1676.         strcpy(desc->params[i].short_desc, "Provide both capture and playback ports");

  1677.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1678. 

  1679.         i++;

  1680.         strcpy(desc->params[i].name, "rate");

  1681.         desc->params[i].character = 'r';

  1682.         desc->params[i].type = JackDriverParamUInt;

  1683.         desc->params[i].value.ui = 44100U;

  1684.         strcpy(desc->params[i].short_desc, "Sample rate");

  1685.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1686. 

  1687.         i++;

  1688.         strcpy(desc->params[i].name, "period");

  1689.         desc->params[i].character = 'p';

  1690.         desc->params[i].type = JackDriverParamUInt;

  1691.         desc->params[i].value.ui = 128U;

  1692.         strcpy(desc->params[i].short_desc, "Frames per period");

  1693.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1694. 

  1695.         i++;

  1696.         strcpy(desc->params[i].name, "device");

  1697.         desc->params[i].character = 'd';

  1698.         desc->params[i].type = JackDriverParamString;

  1699.         strcpy(desc->params[i].short_desc, "CoreAudio device name");

  1700.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1701. 

  1702.         i++;

  1703.         strcpy(desc->params[i].name, "input-latency");

  1704.         desc->params[i].character = 'I';

  1705.         desc->params[i].type = JackDriverParamUInt;

  1706.         desc->params[i].value.i = 0;

  1707.         strcpy(desc->params[i].short_desc, "Extra input latency (frames)");

  1708.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1709. 

  1710.         i++;

  1711.         strcpy(desc->params[i].name, "output-latency");

  1712.         desc->params[i].character = 'O';

  1713.         desc->params[i].type = JackDriverParamUInt;

  1714.         desc->params[i].value.i = 0;

  1715.         strcpy(desc->params[i].short_desc, "Extra output latency (frames)");

  1716.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1717. 

  1718.         i++;

  1719.         strcpy(desc->params[i].name, "list-devices");

  1720.         desc->params[i].character = 'l';

  1721.         desc->params[i].type = JackDriverParamBool;

  1722.         desc->params[i].value.i = FALSE;

  1723.         strcpy(desc->params[i].short_desc, "Display available CoreAudio devices");

  1724.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1725.         

  1726.         i++;

  1727.         strcpy(desc->params[i].name, "hog");

  1728.         desc->params[i].character = 'H';

  1729.         desc->params[i].type = JackDriverParamBool;

  1730.         desc->params[i].value.i = FALSE;

  1731.         strcpy(desc->params[i].short_desc, "Take exclusive access of the audio device");

  1732.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1733.         

  1734.         i++;

  1735.         strcpy(desc->params[i].name, "async-latency");

  1736.         desc->params[i].character = 'L';

  1737.         desc->params[i].type = JackDriverParamUInt;

  1738.         desc->params[i].value.i = 100;

  1739.         strcpy(desc->params[i].short_desc, "Extra output latency in asynchronous mode (percent)");

  1740.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1741.         

  1742.         i++;

  1743.         strcpy(desc->params[i].name, "grain");

  1744.         desc->params[i].character = 'G';

  1745.         desc->params[i].type = JackDriverParamUInt;

  1746.         desc->params[i].value.i = 100;

  1747.         strcpy(desc->params[i].short_desc, "Computation grain in RT thread (percent)");

  1748.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1749. 

  1750.         return desc;

  1751.     }

  1752. 

  1753.     SERVER_EXPORT Jack::JackDriverClientInterface* driver_initialize(Jack::JackLockedEngine* engine, Jack::JackSynchro* table, const JSList* params) 

  1754.     {

  1755.         jack_nframes_t srate = 44100;

  1756.         jack_nframes_t frames_per_interrupt = 128;

  1757.         bool capture = false;

  1758.         bool playback = false;

  1759.         int chan_in = -1;   // Default: if not explicitely set, then max possible will be used...

  1760.         int chan_out = -1;  // Default: ifà not explicitely set, then max possible will be used...

  1761.         bool monitor = false;

  1762.         const char* capture_driver_uid = "";

  1763.         const char* playback_driver_uid = "";

  1764.         const JSList *node;

  1765.         const jack_driver_param_t *param;

  1766.         jack_nframes_t systemic_input_latency = 0;

  1767.         jack_nframes_t systemic_output_latency = 0;

  1768.         int async_output_latency = 100;

  1769.         int computation_grain = -1;

  1770.         bool hogged = false;

  1771.     

  1772.         for (node = params; node; node = jack_slist_next(node)) {

  1773.             param = (const jack_driver_param_t *) node->data;

  1774.        

  1775.             switch (param->character) {

  1776. 

  1777.                 case 'd':

  1778.                     capture_driver_uid = strdup(param->value.str);

  1779.                     playback_driver_uid = strdup(param->value.str);

  1780.                     break;

  1781. 

  1782.                 case 'D':

  1783.                     capture = true;

  1784.                     playback = true;

  1785.                     break;

  1786. 

  1787.                 case 'c':

  1788.                     chan_in = chan_out = (int)param->value.ui;

  1789.                     break;

  1790. 

  1791.                 case 'i':

  1792.                     chan_in = (int)param->value.ui;

  1793.                     break;

  1794. 

  1795.                 case 'o':

  1796.                     chan_out = (int)param->value.ui;

  1797.                     break;

  1798. 

  1799.                 case 'C':

  1800.                     capture = true;

  1801.                     if (strcmp(param->value.str, "none") != 0) {

  1802.                         capture_driver_uid = strdup(param->value.str);

  1803.                     }

  1804.                     break;

  1805. 

  1806.                 case 'P':

  1807.                     playback = true;

  1808.                     if (strcmp(param->value.str, "none") != 0) {

  1809.                         playback_driver_uid = strdup(param->value.str);

  1810.                     }

  1811.                     break;

  1812. 

  1813.                 case 'm':

  1814.                     monitor = param->value.i;

  1815.                     break;

  1816. 

  1817.                 case 'r':

  1818.                     srate = param->value.ui;

  1819.                     break;

  1820. 

  1821.                 case 'p':

  1822.                     frames_per_interrupt = (unsigned int)param->value.ui;

  1823.                     break;

  1824. 

  1825.                 case 'I':

  1826.                     systemic_input_latency = param->value.ui;

  1827.                     break;

  1828. 

  1829.                 case 'O':

  1830.                     systemic_output_latency = param->value.ui;

  1831.                     break;

  1832. 

  1833.                 case 'l':

  1834.                     Jack::DisplayDeviceNames();

  1835.                     break;

  1836.                     

  1837.                 case 'H':

  1838.                     hogged = true;

  1839.                     break;

  1840.                     

  1841.                 case 'L':

  1842.                     async_output_latency = param->value.ui;

  1843.                     break;

  1844.                     

  1845.                 case 'G':

  1846.                     computation_grain = param->value.ui;

  1847.                     break;

  1848.             }

  1849.         }

  1850. 

  1851.         /* duplex is the default */

  1852.         if (!capture && !playback) {

  1853.             capture = true;

  1854.             playback = true;

  1855.         }

  1856. 

  1857.         Jack::JackCoreAudioDriver* driver = new Jack::JackCoreAudioDriver("system", "coreaudio", engine, table);

  1858.         if (driver->Open(frames_per_interrupt, srate, capture, playback, chan_in, chan_out, monitor, capture_driver_uid, 

  1859.             playback_driver_uid, systemic_input_latency, systemic_output_latency, async_output_latency, computation_grain, hogged) == 0) {

  1860.             return driver;

  1861.         } else {

  1862.             delete driver;

  1863.             return NULL;

  1864.         }

  1865.     }

  1866. 

  1867. #ifdef __cplusplus

  1868. }

  1869. #endif

  1870.