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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. 

  34. namespace Jack

  35. {

  36. 

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

  38. {

  39.     UInt32 __4CC_number = (c);

  40.     char __4CC_string[5];

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

  42.     __4CC_string[4] = 0;

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

  44. }

  45. 

  46. static void printError(OSStatus err)

  47. {

  48.     switch (err) {

  49.         case kAudioHardwareNoError:

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

  51.             break;

  52.         case kAudioConverterErr_FormatNotSupported:

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

  54.             break;

  55.         case kAudioConverterErr_OperationNotSupported:

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

  57.             break;

  58.         case kAudioConverterErr_PropertyNotSupported:

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

  60.             break;

  61.         case kAudioConverterErr_InvalidInputSize:

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

  63.             break;

  64.         case kAudioConverterErr_InvalidOutputSize:

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

  66.             break;

  67.         case kAudioConverterErr_UnspecifiedError:

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

  69.             break;

  70.         case kAudioConverterErr_BadPropertySizeError:

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

  72.             break;

  73.         case kAudioConverterErr_RequiresPacketDescriptionsError:

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

  75.             break;

  76.         case kAudioConverterErr_InputSampleRateOutOfRange:

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

  78.             break;

  79.         case kAudioConverterErr_OutputSampleRateOutOfRange:

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

  81.             break;

  82.         case kAudioHardwareNotRunningError:

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

  84.             break;

  85.         case kAudioHardwareUnknownPropertyError:

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

  87.             break;

  88.         case kAudioHardwareIllegalOperationError:

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

  90.             break;

  91.         case kAudioHardwareBadDeviceError:

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

  93.             break;

  94.         case kAudioHardwareBadStreamError:

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

  96.             break;

  97.         case kAudioDeviceUnsupportedFormatError:

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

  99.             break;

  100.         case kAudioDevicePermissionsError:

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

  102.             break;

  103.         case kAudioHardwareBadObjectError:

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

  105.             break;

  106.         case kAudioHardwareUnsupportedOperationError:

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

  108.             break;

  109.         default:

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

  111.             break;

  112.     }

  113. }

  114. 

  115. static OSStatus DisplayDeviceNames()

  116. {

  117.     UInt32 size;

  118.     Boolean isWritable;

  119.     int i, deviceNum;

  120.     OSStatus err;

  121.     CFStringRef UIname;

  122. 

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

  124.     if (err != noErr)

  125.         return err;

  126. 

  127.     deviceNum = size / sizeof(AudioDeviceID);

  128.     AudioDeviceID devices[deviceNum];

  129. 

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

  131.     if (err != noErr)

  132.         return err;

  133. 

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

  135.         char device_name[256];

  136.         char internal_name[256];

  137. 

  138.         size = sizeof(CFStringRef);

  139.         UIname = NULL;

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

  141.         if (err == noErr) {

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

  143.         } else {

  144.             goto error;

  145.         }

  146. 

  147.         size = 256;

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

  149.         if (err != noErr)

  150.             return err;

  151. 

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

  153.     }

  154. 

  155.     return noErr;

  156. 

  157. error:

  158.     if (UIname != NULL)

  159.         CFRelease(UIname);

  160.     return err;

  161. }

  162. 

  163. static CFStringRef GetDeviceName(AudioDeviceID id)

  164. {

  165.     UInt32 size = sizeof(CFStringRef);

  166.     CFStringRef UIname;

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

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

  169. }

  170. 

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

  172.                                      AudioUnitRenderActionFlags *ioActionFlags,

  173.                                      const AudioTimeStamp *inTimeStamp,

  174.                                      UInt32 inBusNumber,

  175.                                      UInt32 inNumberFrames,

  176.                                      AudioBufferList *ioData)

  177. {

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

  179.     driver->fActionFags = ioActionFlags;

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

  181.     driver->fDriverOutputData = ioData;

  182.     driver->CycleTakeBeginTime();

  183.     return driver->Process();

  184. }

  185. 

  186. int JackCoreAudioDriver::Read()

  187. {

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

  189.     return 0;

  190. }

  191. 

  192. int JackCoreAudioDriver::Write()

  193. {

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

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

  196.             float* buffer = GetOutputBuffer(i);

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

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

  199.             // Monitor ports

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

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

  202.         } else {

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

  204.         }

  205.     }

  206.     return 0;

  207. }

  208. 

  209. // Will run only once

  210. OSStatus JackCoreAudioDriver::MeasureCallback(AudioDeviceID inDevice,

  211.         const AudioTimeStamp* inNow,

  212.         const AudioBufferList* inInputData,

  213.         const AudioTimeStamp* inInputTime,

  214.         AudioBufferList* outOutputData,

  215.         const AudioTimeStamp* inOutputTime,

  216.         void* inClientData)

  217. {

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

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

  220.     

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

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

  223.     

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

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

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

  227.     }

  228.     

  229.     // Setup threadded based log function

  230.     set_threaded_log_function();

  231.     return noErr;

  232. }

  233. 

  234. OSStatus JackCoreAudioDriver::SRNotificationCallback(AudioDeviceID inDevice,

  235.         UInt32 inChannel,

  236.         Boolean	isInput,

  237.         AudioDevicePropertyID inPropertyID,

  238.         void* inClientData)

  239. {

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

  241. 

  242.     switch (inPropertyID) {

  243. 

  244.         case kAudioDevicePropertyNominalSampleRate: {

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

  246.             driver->fState = true;

  247.             break;

  248.         }

  249.     }

  250. 

  251.     return noErr;

  252. }

  253. 

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

  255. OSStatus JackCoreAudioDriver::DeviceNotificationCallback(AudioDeviceID inDevice,

  256.         UInt32 inChannel,

  257.         Boolean	isInput,

  258.         AudioDevicePropertyID inPropertyID,

  259.         void* inClientData)

  260. {

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

  262.          

  263.     switch (inPropertyID) {

  264. 

  265.         case kAudioDeviceProcessorOverload: {

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

  267.             jack_time_t cur_time = GetMicroSeconds();

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

  269.             break;

  270. 		}

  271. 

  272.         case kAudioDevicePropertyStreamConfiguration: {

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

  274.             driver->NotifyFailure(JackBackendError, "CoreAudio device stream configuration has changed, backend stopped.");

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

  276.             return kAudioHardwareUnsupportedOperationError;

  277. 		}

  278.             

  279. 		case kAudioDevicePropertyNominalSampleRate: {

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

  281.             driver->NotifyFailure(JackBackendError, "CoreAudio device sampling rate has changed, backend stopped.");

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

  283.             return kAudioHardwareUnsupportedOperationError;

  284. 		}

  285.             

  286.     }

  287.     return noErr;

  288. }

  289. 

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

  291. {

  292.     UInt32 size = sizeof(AudioValueTranslation);

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

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

  295. 

  296.     if (inIUD == NULL) {

  297.         return kAudioHardwareUnspecifiedError;

  298.     } else {

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

  300.         CFRelease(inIUD);

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

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

  303.     }

  304. }

  305. 

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

  307. {

  308.     OSStatus res;

  309.     UInt32 theSize = sizeof(UInt32);

  310.     AudioDeviceID inDefault;

  311.     AudioDeviceID outDefault;

  312. 

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

  314.         return res;

  315. 

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

  317.         return res;

  318. 

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

  320. 

  321.     // Get the device only if default input and ouput are the same

  322.     if (inDefault == outDefault) {

  323.         *id = inDefault;

  324.         return noErr;

  325.     } else {

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

  327.         return kAudioHardwareBadDeviceError;

  328.     }

  329. }

  330. 

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

  332. {

  333.     OSStatus res;

  334.     UInt32 theSize = sizeof(UInt32);

  335.     AudioDeviceID inDefault;

  336. 

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

  338.         return res;

  339. 

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

  341.     *id = inDefault;

  342.     return noErr;

  343. }

  344. 

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

  346. {

  347.     OSStatus res;

  348.     UInt32 theSize = sizeof(UInt32);

  349.     AudioDeviceID outDefault;

  350. 

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

  352.         return res;

  353. 

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

  355.     *id = outDefault;

  356.     return noErr;

  357. }

  358. 

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

  360. {

  361.     UInt32 size = 256;

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

  363. }

  364. 

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

  366. {

  367.     OSStatus err = noErr;

  368.     UInt32	outSize;

  369.     Boolean	outWritable;

  370.     AudioBufferList* bufferList = 0;

  371. 

  372.     channelCount = 0;

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

  374.     if (err == noErr) {

  375.         bufferList = (AudioBufferList*)malloc(outSize);

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

  377.         if (err == noErr) {

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

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

  380.         }

  381. 

  382.         if (bufferList)

  383.             free(bufferList);

  384.     }

  385. 

  386.     return err;

  387. }

  388. 

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

  390.         : JackAudioDriver(name, alias, engine, table), fJackInputData(NULL), fDriverOutputData(NULL), fState(false), fIOUsage(1.f),fComputationGrain(-1.f)

  391. {}

  392. 

  393. JackCoreAudioDriver::~JackCoreAudioDriver()

  394. {}

  395. 

  396. OSStatus JackCoreAudioDriver::CreateAggregateDevice(AudioDeviceID captureDeviceID, AudioDeviceID playbackDeviceID, AudioDeviceID* outAggregateDevice) 

  397. {

  398.     OSStatus osErr = noErr;

  399.     UInt32 outSize;

  400.     Boolean outWritable;

  401. 

  402.     //-----------------------

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

  404.     //-----------------------

  405. 

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

  407.     if (osErr != noErr) 

  408.         return osErr;

  409. 

  410.     AudioValueTranslation pluginAVT;

  411. 

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

  413.     AudioObjectID pluginID;

  414. 

  415.     pluginAVT.mInputData = &inBundleRef;

  416.     pluginAVT.mInputDataSize = sizeof(inBundleRef);

  417.     pluginAVT.mOutputData = &pluginID;

  418.     pluginAVT.mOutputDataSize = sizeof(pluginID);

  419. 

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

  421.     if (osErr != noErr) 

  422.         return osErr;

  423. 

  424.     //-----------------------

  425.     // Create a CFDictionary for our aggregate device

  426.     //-----------------------

  427. 

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

  429. 

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

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

  432. 

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

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

  435. 

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

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

  438. 

  439.     //-------------------------------------------------

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

  441.     //-------------------------------------------------

  442.     

  443.     CFStringRef captureDeviceUID = GetDeviceName(captureDeviceID);

  444.     CFStringRef playbackDeviceUID = GetDeviceName(playbackDeviceID);

  445.     

  446.     if (captureDeviceUID == NULL || playbackDeviceUID == NULL)

  447.         return -1;

  448.   

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

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

  451. 

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

  453.     CFArrayAppendValue(subDevicesArray, captureDeviceUID);

  454.     CFArrayAppendValue(subDevicesArray, playbackDeviceUID);

  455. 

  456.     //-----------------------------------------------------------------------

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

  458.     //-----------------------------------------------------------------------

  459.  

  460.     AudioObjectPropertyAddress pluginAOPA;

  461.     pluginAOPA.mSelector = kAudioPlugInCreateAggregateDevice;

  462.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  463.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  464.     UInt32 outDataSize;

  465. 

  466.     osErr = AudioObjectGetPropertyDataSize(pluginID, &pluginAOPA, 0, NULL, &outDataSize);

  467.     if (osErr != noErr) 

  468.         return osErr;

  469. 

  470.     osErr = AudioObjectGetPropertyData(pluginID, &pluginAOPA, sizeof(aggDeviceDict), &aggDeviceDict, &outDataSize, outAggregateDevice);

  471.     if (osErr != noErr) 

  472.         return osErr;

  473. 

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

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

  476.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  477. 

  478.     //-------------------------

  479.     // Set the sub-device list

  480.     //-------------------------

  481. 

  482.     pluginAOPA.mSelector = kAudioAggregateDevicePropertyFullSubDeviceList;

  483.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  484.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  485.     outDataSize = sizeof(CFMutableArrayRef);

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

  487.     if (osErr != noErr)

  488.         return osErr;

  489. 

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

  491.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  492. 

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

  494.     // Set the master device

  495.     //-----------------------

  496. 

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

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

  499.     pluginAOPA.mSelector = kAudioAggregateDevicePropertyMasterSubDevice;

  500.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  501.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  502.     outDataSize = sizeof(CFStringRef);

  503.     osErr = AudioObjectSetPropertyData(*outAggregateDevice, &pluginAOPA, 0, NULL, outDataSize, &captureDeviceUID);  // capture is master...

  504.     if (osErr != noErr) 

  505.         return osErr;

  506. 

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

  508.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  509. 

  510.     //----------

  511.     // Clean up

  512.     //----------

  513. 

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

  515.     CFRelease(aggDeviceDict);

  516.     CFRelease(subDevicesArray);

  517. 

  518.     // release the device UID

  519.     CFRelease(captureDeviceUID);

  520.     CFRelease(playbackDeviceUID);

  521.     

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

  523.     return noErr;

  524. }

  525. 

  526. int JackCoreAudioDriver::SetupDevices(const char* capture_driver_uid, const char* playback_driver_uid, char* capture_driver_name, char* playback_driver_name)

  527. {

  528.     capture_driver_name[0] = 0;

  529.     playback_driver_name[0] = 0;

  530. 

  531.     // Duplex

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

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

  534.         

  535.         /*

  536.         AudioDeviceID captureID, playbackID;

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

  538.             return -1;

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

  540.             return -1;

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

  542.             return -1;

  543.         */

  544.         

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

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

  547.             

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

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

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

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

  552.                     return -1;

  553.                 }

  554.             }

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

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

  557.                 return -1;

  558.             }

  559.             

  560.         } else {

  561.         

  562.             // Creates agregate device

  563.             AudioDeviceID captureID, playbackID;

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

  565.                 return -1;

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

  567.                 return -1;

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

  569.                 return -1;

  570.         }

  571. 

  572.         // Capture only

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

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

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

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

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

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

  579.                 return -1;

  580.             }

  581.         }

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

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

  584.             return -1;

  585.         }

  586. 

  587.         // Playback only

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

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

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

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

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

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

  594.                 return -1;

  595.             }

  596.         }

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

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

  599.             return -1;

  600.         }

  601. 

  602.         // Use default driver in duplex mode

  603.     } else {

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

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

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

  607.             return -1;

  608.         }

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

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

  611.             return -1;

  612.         }

  613.     }

  614. 

  615.     return 0;

  616. }

  617. 

  618. /*

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

  620. */

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

  622. {

  623.     OSStatus err = noErr;

  624. 

  625.     if (capturing) {

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

  627.         if (err != noErr) {

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

  629.             printError(err);

  630.             return -1;

  631.         } else {

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

  633.         }

  634.     }

  635. 

  636.     if (playing) {

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

  638.         if (err != noErr) {

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

  640.             printError(err);

  641.             return -1;

  642.         } else {

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

  644.         }

  645.     }

  646. 

  647.     if (inchannels > in_nChannels) {

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

  649.         if (strict)

  650.             return -1;

  651.     }

  652. 

  653.     if (outchannels > out_nChannels) {

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

  655.         if (strict)

  656.             return -1;

  657.     }

  658. 

  659.     if (inchannels == 0) {

  660.         jack_log("Setup max in channels = %ld", in_nChannels);

  661.         inchannels = in_nChannels;

  662.     }

  663. 

  664.     if (outchannels == 0) {

  665.         jack_log("Setup max out channels = %ld", out_nChannels);

  666.         outchannels = out_nChannels;

  667.     }

  668. 

  669.     return 0;

  670. }

  671. 

  672. int JackCoreAudioDriver::SetupBufferSizeAndSampleRate(jack_nframes_t buffer_size, jack_nframes_t samplerate)

  673. {

  674.     OSStatus err = noErr;

  675.     UInt32 outSize;

  676.     Float64 sampleRate;

  677. 

  678.     // Setting buffer size

  679.     outSize = sizeof(UInt32);

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

  681.     if (err != noErr) {

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

  683.         printError(err);

  684.         return -1;

  685.     }

  686. 

  687.     // Get sample rate

  688.     outSize =  sizeof(Float64);

  689.     err = AudioDeviceGetProperty(fDeviceID, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyNominalSampleRate, &outSize, &sampleRate);

  690.     if (err != noErr) {

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

  692.         printError(err);

  693.         return -1;

  694.     }

  695. 

  696.     // If needed, set new sample rate

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

  698.         sampleRate = (Float64)samplerate;

  699. 

  700.         // To get SR change notification

  701.         err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, SRNotificationCallback, this);

  702.         if (err != noErr) {

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

  704.             printError(err);

  705.             return -1;

  706.         }

  707.         err = AudioDeviceSetProperty(fDeviceID, NULL, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyNominalSampleRate, outSize, &sampleRate);

  708.         if (err != noErr) {

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

  710.             printError(err);

  711.             return -1;

  712.         }

  713. 

  714.         // Waiting for SR change notification

  715.         int count = 0;

  716.         while (!fState && count++ < 100) {

  717.             usleep(100000);

  718.             jack_log("Wait count = %ld", count);

  719.         }

  720. 

  721.         // Remove SR change notification

  722.         AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, SRNotificationCallback);

  723.     }

  724. 

  725.     return 0;

  726. }

  727. 

  728. int JackCoreAudioDriver::OpenAUHAL(bool capturing,

  729.                                    bool playing,

  730.                                    int inchannels,

  731.                                    int outchannels,

  732.                                    int in_nChannels,

  733.                                    int out_nChannels,

  734.                                    jack_nframes_t buffer_size,

  735.                                    jack_nframes_t samplerate,

  736.                                    bool strict)

  737. {

  738.     ComponentResult err1;

  739.     UInt32 enableIO;

  740.     AudioStreamBasicDescription srcFormat, dstFormat;

  741. 

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

  743. 

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

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

  746.         return -1;

  747.     }

  748.          

  749.     // AUHAL

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

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

  752. 

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

  754.     if (err1 != noErr) {

  755.         jack_error("Error calling OpenAComponent");

  756.         printError(err1);

  757.         return -1;

  758.     }

  759. 

  760.     err1 = AudioUnitInitialize(fAUHAL);

  761.     if (err1 != noErr) {

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

  763.         printError(err1);

  764.         return -1;

  765.     }

  766. 

  767.     // Start I/O

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

  769.         enableIO = 1;

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

  771.     } else {

  772.         enableIO = 0;

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

  774.     }

  775.     

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

  777.     if (err1 != noErr) {

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

  779.         printError(err1);

  780.         if (strict)

  781.             return -1;

  782.     }

  783. 

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

  785.         enableIO = 1;

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

  787.     } else {

  788.         enableIO = 0;

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

  790.     }

  791.     

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

  793.     if (err1 != noErr) {

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

  795.         printError(err1);

  796.         if (strict)

  797.             return -1;

  798.     }

  799.     

  800.     AudioDeviceID currAudioDeviceID;

  801.     UInt32 size = sizeof(AudioDeviceID);

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

  803.     if (err1 != noErr) {

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

  805.         printError(err1);

  806.         if (strict)

  807.             return -1;

  808.     } else {

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

  810.     }

  811. 

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

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

  814.     if (err1 != noErr) {

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

  816.         printError(err1);

  817.         if (strict)

  818.             return -1;

  819.     }

  820.     

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

  822.     if (err1 != noErr) {

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

  824.         printError(err1);

  825.         if (strict)

  826.             return -1;

  827.     } else {

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

  829.     }

  830. 

  831.     // Set buffer size

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

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

  834.         if (err1 != noErr) {

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

  836.             printError(err1);

  837.             if (strict)

  838.                 return -1;

  839.         }

  840.     }

  841. 

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

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

  844.         if (err1 != noErr) {

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

  846.             printError(err1);

  847.             if (strict)

  848.                 return -1;

  849.         }

  850.     }

  851. 

  852.     // Setup channel map

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

  854.         SInt32 chanArr[in_nChannels];

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

  856.             chanArr[i] = -1;

  857.         }

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

  859.             chanArr[i] = i;

  860.         }

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

  862.         if (err1 != noErr) {

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

  864.             printError(err1);

  865.         }

  866.     }

  867. 

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

  869.         SInt32 chanArr[out_nChannels];

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

  871.             chanArr[i] = -1;

  872.         }

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

  874.             chanArr[i] = i;

  875.         }

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

  877.         if (err1 != noErr) {

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

  879.             printError(err1);

  880.         }

  881.     }

  882. 

  883.     // Setup stream converters

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

  885.     srcFormat.mSampleRate = samplerate;

  886.     srcFormat.mFormatID = kAudioFormatLinearPCM;

  887.     srcFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;

  888.     srcFormat.mBytesPerPacket = sizeof(float);

  889.     srcFormat.mFramesPerPacket = 1;

  890.     srcFormat.mBytesPerFrame = sizeof(float);

  891.     srcFormat.mChannelsPerFrame = outchannels;

  892.     srcFormat.mBitsPerChannel = 32;

  893. 

  894.     err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &srcFormat, sizeof(AudioStreamBasicDescription));

  895.     if (err1 != noErr) {

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

  897.         printError(err1);

  898.     }

  899. 

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

  901.     dstFormat.mSampleRate = samplerate;

  902.     dstFormat.mFormatID = kAudioFormatLinearPCM;

  903.     dstFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;

  904.     dstFormat.mBytesPerPacket = sizeof(float);

  905.     dstFormat.mFramesPerPacket = 1;

  906.     dstFormat.mBytesPerFrame = sizeof(float);

  907.     dstFormat.mChannelsPerFrame = inchannels;

  908.     dstFormat.mBitsPerChannel = 32;

  909. 

  910.     err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 1, &dstFormat, sizeof(AudioStreamBasicDescription));

  911.     if (err1 != noErr) {

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

  913.         printError(err1);

  914.     }

  915. 

  916.     // Setup callbacks

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

  918.         AURenderCallbackStruct output;

  919.         output.inputProc = Render;

  920.         output.inputProcRefCon = this;

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

  922.         if (err1 != noErr) {

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

  924.             printError(err1);

  925.             return -1;

  926.         }

  927.     } else {

  928.         AURenderCallbackStruct output;

  929.         output.inputProc = Render;

  930.         output.inputProcRefCon = this;

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

  932.         if (err1 != noErr) {

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

  934.             printError(err1);

  935.             return -1;

  936.         }

  937.     }

  938. 

  939.     return 0;

  940. }

  941. 

  942. int JackCoreAudioDriver::SetupBuffers(int inchannels)

  943. {

  944.     // Prepare buffers

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

  946.     if (fJackInputData == 0) {

  947.         jack_error("Cannot allocate memory for input buffers");

  948.         return -1;

  949.     }

  950.     fJackInputData->mNumberBuffers = inchannels;

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

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

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

  954.     }

  955.     return 0;

  956. }

  957. 

  958. void JackCoreAudioDriver::DisposeBuffers()

  959. {

  960.     if (fJackInputData) {

  961.         free(fJackInputData);

  962.         fJackInputData = 0;

  963.     }

  964. }

  965. 

  966. void JackCoreAudioDriver::CloseAUHAL()

  967. {

  968.     AudioUnitUninitialize(fAUHAL);

  969.     CloseComponent(fAUHAL);

  970. }

  971. 

  972. int JackCoreAudioDriver::AddListeners()

  973. {

  974.     OSStatus err = noErr;

  975. 

  976.     // Add listeners

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

  978.     if (err != noErr) {

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

  980.         printError(err);

  981.         return -1;

  982.     }

  983. 

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

  985.     if (err != noErr) {

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

  987.         printError(err);

  988.         return -1;

  989.     }

  990. 

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

  992.     if (err != noErr) {

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

  994.         printError(err);

  995.         return -1;

  996.     }

  997. 

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

  999.     if (err != noErr) {

  1000.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyDeviceIsRunning");

  1001.         printError(err);

  1002.         return -1;

  1003.     }

  1004. 

  1005.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback, this);

  1006.     if (err != noErr) {

  1007.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyStreamConfiguration");

  1008.         printError(err);

  1009.         return -1;

  1010.     }

  1011. 

  1012.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, false, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback, this);

  1013.     if (err != noErr) {

  1014.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyStreamConfiguration");

  1015.         printError(err);

  1016.         return -1;

  1017.     }

  1018. 

  1019.     if (!fEngineControl->fSyncMode && fIOUsage != 1.f) {

  1020.         UInt32 outSize = sizeof(float);

  1021.         err = AudioDeviceSetProperty(fDeviceID, NULL, 0, false, kAudioDevicePropertyIOCycleUsage, outSize, &fIOUsage);

  1022.         if (err != noErr) {

  1023.             jack_error("Error calling AudioDeviceSetProperty kAudioDevicePropertyIOCycleUsage");

  1024.             printError(err);

  1025.         }

  1026.     }

  1027. 

  1028.     return 0;

  1029. }

  1030. 

  1031. void JackCoreAudioDriver::RemoveListeners()

  1032. {

  1033.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDeviceProcessorOverload, DeviceNotificationCallback);

  1034.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioHardwarePropertyDevices, DeviceNotificationCallback);

  1035.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, DeviceNotificationCallback);

  1036.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyDeviceIsRunning, DeviceNotificationCallback);

  1037.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback);

  1038.     AudioDeviceRemovePropertyListener(fDeviceID, 0, false, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback);

  1039. }

  1040. 

  1041. int JackCoreAudioDriver::Open(jack_nframes_t buffer_size,

  1042.                               jack_nframes_t samplerate,

  1043.                               bool capturing,

  1044.                               bool playing,

  1045.                               int inchannels,

  1046.                               int outchannels,

  1047.                               bool monitor,

  1048.                               const char* capture_driver_uid,

  1049.                               const char* playback_driver_uid,

  1050.                               jack_nframes_t capture_latency,

  1051.                               jack_nframes_t playback_latency,

  1052.                               int async_output_latency,

  1053.                               int computation_grain)

  1054. {

  1055.     int in_nChannels = 0;

  1056.     int out_nChannels = 0;

  1057.     char capture_driver_name[256];

  1058.     char playback_driver_name[256];

  1059. 

  1060.     // Keep initial state

  1061.     fCapturing = capturing;

  1062.     fPlaying = playing;

  1063.     fInChannels = inchannels;

  1064.     fOutChannels = outchannels;

  1065.     fMonitor = monitor;

  1066.     strcpy(fCaptureUID, capture_driver_uid);

  1067.     strcpy(fPlaybackUID, playback_driver_uid);

  1068.     fCaptureLatency = capture_latency;

  1069.     fPlaybackLatency = playback_latency;

  1070.     fIOUsage = float(async_output_latency) / 100.f;

  1071.     fComputationGrain = float(computation_grain) / 100.f;

  1072.     

  1073.     CFRunLoopRef theRunLoop = NULL;

  1074.     AudioObjectPropertyAddress theAddress = { kAudioHardwarePropertyRunLoop, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };

  1075.     OSStatus theError = AudioObjectSetPropertyData (kAudioObjectSystemObject, &theAddress, 0, NULL, sizeof(CFRunLoopRef), &theRunLoop);

  1076.     if (theError != noErr) {

  1077.         jack_error("JackCoreAudioDriver::Open kAudioHardwarePropertyRunLoop error");

  1078.     }

  1079. 

  1080.     if (SetupDevices(capture_driver_uid, playback_driver_uid, capture_driver_name, playback_driver_name) < 0)

  1081.         return -1;

  1082. 

  1083.     // Generic JackAudioDriver Open

  1084.     if (JackAudioDriver::Open(buffer_size, samplerate, capturing, playing, inchannels, outchannels, monitor, capture_driver_name, playback_driver_name, capture_latency, playback_latency) != 0)

  1085.         return -1;

  1086. 

  1087.     if (SetupChannels(capturing, playing, inchannels, outchannels, in_nChannels, out_nChannels, true) < 0)

  1088.         return -1;

  1089. 

  1090.     if (SetupBufferSizeAndSampleRate(buffer_size, samplerate)  < 0)

  1091.         return -1;

  1092. 

  1093.     if (OpenAUHAL(capturing, playing, inchannels, outchannels, in_nChannels, out_nChannels, buffer_size, samplerate, true) < 0)

  1094.         goto error;

  1095. 

  1096.     if (capturing && inchannels > 0)

  1097.         if (SetupBuffers(inchannels) < 0)

  1098.             goto error;

  1099. 

  1100.     if (AddListeners() < 0)

  1101.         goto error;

  1102. 

  1103.     // Core driver may have changed the in/out values

  1104.     fCaptureChannels = inchannels;

  1105.     fPlaybackChannels = outchannels;

  1106.     return noErr;

  1107. 

  1108. error:

  1109.     Close();

  1110.     return -1;

  1111. }

  1112. 

  1113. int JackCoreAudioDriver::Close()

  1114. {

  1115.     jack_log("JackCoreAudioDriver::Close");

  1116.     Stop();

  1117.     JackAudioDriver::Close();

  1118.     RemoveListeners();

  1119.     DisposeBuffers();

  1120.     CloseAUHAL();

  1121.     return 0;

  1122. }

  1123. 

  1124. int JackCoreAudioDriver::Attach()

  1125. {

  1126.     OSStatus err;

  1127.     JackPort* port;

  1128.     jack_port_id_t port_index;

  1129.     UInt32 size;

  1130.     Boolean isWritable;

  1131.     char channel_name[64];

  1132.     char name[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];

  1133.     char alias[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];

  1134.     unsigned long port_flags = JackPortIsOutput | JackPortIsPhysical | JackPortIsTerminal;

  1135. 

  1136.     jack_log("JackCoreAudioDriver::Attach fBufferSize %ld fSampleRate %ld", fEngineControl->fBufferSize, fEngineControl->fSampleRate);

  1137. 

  1138.     for (int i = 0; i < fCaptureChannels; i++) {

  1139. 

  1140.         err = AudioDeviceGetPropertyInfo(fDeviceID, i + 1, true, kAudioDevicePropertyChannelName, &size, &isWritable);

  1141.         if (err != noErr)

  1142.             jack_log("AudioDeviceGetPropertyInfo kAudioDevicePropertyChannelName error ");

  1143.         if (err == noErr && size > 0) {

  1144.             err = AudioDeviceGetProperty(fDeviceID, i + 1, true, kAudioDevicePropertyChannelName, &size, channel_name);

  1145.             if (err != noErr)

  1146.                 jack_log("AudioDeviceGetProperty kAudioDevicePropertyChannelName error ");

  1147.             snprintf(alias, sizeof(alias) - 1, "%s:%s:out_%s%u", fAliasName, fCaptureDriverName, channel_name, i + 1);

  1148.         } else {

  1149.             snprintf(alias, sizeof(alias) - 1, "%s:%s:out%u", fAliasName, fCaptureDriverName, i + 1);

  1150.         }

  1151. 

  1152.         snprintf(name, sizeof(name) - 1, "%s:capture_%d", fClientControl.fName, i + 1);

  1153. 

  1154.         if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize)) == NO_PORT) {

  1155.             jack_error("Cannot register port for %s", name);

  1156.             return -1;

  1157.         }

  1158. 

  1159.         size = sizeof(UInt32);

  1160.         UInt32 value1 = 0;

  1161.         UInt32 value2 = 0;

  1162.         err = AudioDeviceGetProperty(fDeviceID, 0, true, kAudioDevicePropertyLatency, &size, &value1);

  1163.         if (err != noErr)

  1164.             jack_log("AudioDeviceGetProperty kAudioDevicePropertyLatency error ");

  1165.         err = AudioDeviceGetProperty(fDeviceID, 0, true, kAudioDevicePropertySafetyOffset, &size, &value2);

  1166.         if (err != noErr)

  1167.             jack_log("AudioDeviceGetProperty kAudioDevicePropertySafetyOffset error ");

  1168. 

  1169.         port = fGraphManager->GetPort(port_index);

  1170.         port->SetAlias(alias);

  1171.         port->SetLatency(fEngineControl->fBufferSize + value1 + value2 + fCaptureLatency);

  1172.         fCapturePortList[i] = port_index;

  1173.     }

  1174. 

  1175.     port_flags = JackPortIsInput | JackPortIsPhysical | JackPortIsTerminal;

  1176. 

  1177.     for (int i = 0; i < fPlaybackChannels; i++) {

  1178. 

  1179.         err = AudioDeviceGetPropertyInfo(fDeviceID, i + 1, false, kAudioDevicePropertyChannelName, &size, &isWritable);

  1180.         if (err != noErr)

  1181.             jack_log("AudioDeviceGetPropertyInfo kAudioDevicePropertyChannelName error ");

  1182.         if (err == noErr && size > 0) {

  1183.             err = AudioDeviceGetProperty(fDeviceID, i + 1, false, kAudioDevicePropertyChannelName, &size, channel_name);

  1184.             if (err != noErr)

  1185.                 jack_log("AudioDeviceGetProperty kAudioDevicePropertyChannelName error ");

  1186.             snprintf(alias, sizeof(alias) - 1, "%s:%s:in_%s%u", fAliasName, fPlaybackDriverName, channel_name, i + 1);

  1187.         } else {

  1188.             snprintf(alias, sizeof(alias) - 1, "%s:%s:in%u", fAliasName, fPlaybackDriverName, i + 1);

  1189.         }

  1190. 

  1191.         snprintf(name, sizeof(name) - 1, "%s:playback_%d", fClientControl.fName, i + 1);

  1192. 

  1193.         if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize)) == NO_PORT) {

  1194.             jack_error("Cannot register port for %s", name);

  1195.             return -1;

  1196.         }

  1197. 

  1198.         size = sizeof(UInt32);

  1199.         UInt32 value1 = 0;

  1200.         UInt32 value2 = 0;

  1201.         err = AudioDeviceGetProperty(fDeviceID, 0, false, kAudioDevicePropertyLatency, &size, &value1);

  1202.         if (err != noErr)

  1203.             jack_log("AudioDeviceGetProperty kAudioDevicePropertyLatency error ");

  1204.         err = AudioDeviceGetProperty(fDeviceID, 0, false, kAudioDevicePropertySafetyOffset, &size, &value2);

  1205.         if (err != noErr)

  1206.             jack_log("AudioDeviceGetProperty kAudioDevicePropertySafetyOffset error ");

  1207. 

  1208.         port = fGraphManager->GetPort(port_index);

  1209.         port->SetAlias(alias);

  1210.         // Add more latency if "async" mode is used...

  1211.         port->SetLatency(fEngineControl->fBufferSize + ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize * fIOUsage) + value1 + value2 + fPlaybackLatency);

  1212.         fPlaybackPortList[i] = port_index;

  1213. 

  1214.         // Monitor ports

  1215.         if (fWithMonitorPorts) {

  1216.             jack_log("Create monitor port ");

  1217.             snprintf(name, sizeof(name) - 1, "%s:monitor_%u", fClientControl.fName, i + 1);

  1218.             if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, fEngineControl->fBufferSize)) == NO_PORT) {

  1219.                 jack_error("Cannot register monitor port for %s", name);

  1220.                 return -1;

  1221.             } else {

  1222.                 port = fGraphManager->GetPort(port_index);

  1223.                 port->SetAlias(alias);

  1224.                 port->SetLatency(fEngineControl->fBufferSize);

  1225.                 fMonitorPortList[i] = port_index;

  1226.             }

  1227.         }

  1228.     }

  1229. 

  1230.     // Input buffers do no change : prepare them only once

  1231.     for (int i = 0; i < fCaptureChannels; i++) {

  1232.         fJackInputData->mBuffers[i].mData = GetInputBuffer(i);

  1233.     }

  1234. 

  1235.     return 0;

  1236. }

  1237. 

  1238. int JackCoreAudioDriver::Start()

  1239. {

  1240.     jack_log("JackCoreAudioDriver::Start");

  1241.     JackAudioDriver::Start();

  1242. /*

  1243. #ifdef MAC_OS_X_VERSION_10_5

  1244.     OSStatus err = AudioDeviceCreateIOProcID(fDeviceID, MeasureCallback, this, &fMesureCallbackID);

  1245. #else

  1246.     OSStatus err = AudioDeviceAddIOProc(fDeviceID, MeasureCallback, this);

  1247. #endif

  1248. */

  1249.     OSStatus err = AudioDeviceAddIOProc(fDeviceID, MeasureCallback, this);

  1250.     

  1251.     if (err != noErr)

  1252.         return -1;

  1253. 

  1254.     err = AudioOutputUnitStart(fAUHAL);

  1255.     if (err != noErr)

  1256.         return -1;

  1257. 

  1258.     if ((err = AudioDeviceStart(fDeviceID, MeasureCallback)) != noErr) {

  1259.         jack_error("Cannot start MeasureCallback");

  1260.         printError(err);

  1261.         return -1;

  1262.     }

  1263. 

  1264.     return 0;

  1265. }

  1266. 

  1267. int JackCoreAudioDriver::Stop()

  1268. {

  1269.     jack_log("JackCoreAudioDriver::Stop");

  1270.     AudioDeviceStop(fDeviceID, MeasureCallback);

  1271. /*

  1272. #ifdef MAC_OS_X_VERSION_10_5

  1273.     AudioDeviceDestroyIOProcID(fDeviceID, fMesureCallbackID);

  1274. #else

  1275.     AudioDeviceRemoveIOProc(fDeviceID, MeasureCallback);

  1276. #endif

  1277. */

  1278.     AudioDeviceRemoveIOProc(fDeviceID, MeasureCallback);

  1279.     return (AudioOutputUnitStop(fAUHAL) == noErr) ? 0 : -1;

  1280. }

  1281. 

  1282. int JackCoreAudioDriver::SetBufferSize(jack_nframes_t buffer_size)

  1283. {

  1284.     OSStatus err;

  1285.     UInt32 outSize = sizeof(UInt32);

  1286. 

  1287.     err = AudioDeviceSetProperty(fDeviceID, NULL, 0, false, kAudioDevicePropertyBufferFrameSize, outSize, &buffer_size);

  1288.     if (err != noErr) {

  1289.         jack_error("Cannot set buffer size %ld", buffer_size);

  1290.         printError(err);

  1291.         return -1;

  1292.     }

  1293. 

  1294.     JackAudioDriver::SetBufferSize(buffer_size); // never fails

  1295. 

  1296.     // Input buffers do no change : prepare them only once

  1297.     for (int i = 0; i < fCaptureChannels; i++) {

  1298.         fJackInputData->mBuffers[i].mNumberChannels = 1;

  1299.         fJackInputData->mBuffers[i].mDataByteSize = fEngineControl->fBufferSize * sizeof(float);

  1300.         fJackInputData->mBuffers[i].mData = GetInputBuffer(i);

  1301.     }

  1302. 

  1303.     return 0;

  1304. }

  1305. 

  1306. } // end of namespace

  1307. 

  1308. 

  1309. #ifdef __cplusplus

  1310. extern "C"

  1311. {

  1312. #endif

  1313. 

  1314.     SERVER_EXPORT jack_driver_desc_t* driver_get_descriptor() 

  1315.     {

  1316.         jack_driver_desc_t *desc;

  1317.         unsigned int i;

  1318.         desc = (jack_driver_desc_t*)calloc(1, sizeof(jack_driver_desc_t));

  1319. 

  1320.         strcpy(desc->name, "coreaudio");                                    // size MUST be less then JACK_DRIVER_NAME_MAX + 1

  1321.         strcpy(desc->desc, "Apple CoreAudio API based audio backend");      // size MUST be less then JACK_DRIVER_PARAM_DESC + 1

  1322.         

  1323.         desc->nparams = 15;

  1324.         desc->params = (jack_driver_param_desc_t*)calloc(desc->nparams, sizeof(jack_driver_param_desc_t));

  1325. 

  1326.         i = 0;

  1327.         strcpy(desc->params[i].name, "channels");

  1328.         desc->params[i].character = 'c';

  1329.         desc->params[i].type = JackDriverParamInt;

  1330.         desc->params[i].value.ui = 0;

  1331.         strcpy(desc->params[i].short_desc, "Maximum number of channels");

  1332.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1333. 

  1334.         i++;

  1335.         strcpy(desc->params[i].name, "inchannels");

  1336.         desc->params[i].character = 'i';

  1337.         desc->params[i].type = JackDriverParamInt;

  1338.         desc->params[i].value.ui = 0;

  1339.         strcpy(desc->params[i].short_desc, "Maximum number of input channels");

  1340.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1341. 

  1342.         i++;

  1343.         strcpy(desc->params[i].name, "outchannels");

  1344.         desc->params[i].character = 'o';

  1345.         desc->params[i].type = JackDriverParamInt;

  1346.         desc->params[i].value.ui = 0;

  1347.         strcpy(desc->params[i].short_desc, "Maximum number of output channels");

  1348.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1349. 

  1350.         i++;

  1351.         strcpy(desc->params[i].name, "capture");

  1352.         desc->params[i].character = 'C';

  1353.         desc->params[i].type = JackDriverParamString;

  1354.         strcpy(desc->params[i].value.str, "will take default CoreAudio input device");

  1355.         strcpy(desc->params[i].short_desc, "Provide capture ports. Optionally set CoreAudio device name");

  1356.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1357. 

  1358.         i++;

  1359.         strcpy(desc->params[i].name, "playback");

  1360.         desc->params[i].character = 'P';

  1361.         desc->params[i].type = JackDriverParamString;

  1362.         strcpy(desc->params[i].value.str, "will take default CoreAudio output device");

  1363.         strcpy(desc->params[i].short_desc, "Provide playback ports. Optionally set CoreAudio device name");

  1364.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1365. 

  1366.         i++;

  1367.         strcpy (desc->params[i].name, "monitor");

  1368.         desc->params[i].character = 'm';

  1369.         desc->params[i].type = JackDriverParamBool;

  1370.         desc->params[i].value.i = 0;

  1371.         strcpy(desc->params[i].short_desc, "Provide monitor ports for the output");

  1372.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1373. 

  1374.         i++;

  1375.         strcpy(desc->params[i].name, "duplex");

  1376.         desc->params[i].character = 'D';

  1377.         desc->params[i].type = JackDriverParamBool;

  1378.         desc->params[i].value.i = TRUE;

  1379.         strcpy(desc->params[i].short_desc, "Provide both capture and playback ports");

  1380.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1381. 

  1382.         i++;

  1383.         strcpy(desc->params[i].name, "rate");

  1384.         desc->params[i].character = 'r';

  1385.         desc->params[i].type = JackDriverParamUInt;

  1386.         desc->params[i].value.ui = 44100U;

  1387.         strcpy(desc->params[i].short_desc, "Sample rate");

  1388.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1389. 

  1390.         i++;

  1391.         strcpy(desc->params[i].name, "period");

  1392.         desc->params[i].character = 'p';

  1393.         desc->params[i].type = JackDriverParamUInt;

  1394.         desc->params[i].value.ui = 128U;

  1395.         strcpy(desc->params[i].short_desc, "Frames per period");

  1396.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1397. 

  1398.         i++;

  1399.         strcpy(desc->params[i].name, "device");

  1400.         desc->params[i].character = 'd';

  1401.         desc->params[i].type = JackDriverParamString;

  1402.         strcpy(desc->params[i].value.str, "will take default CoreAudio device name");

  1403.         strcpy(desc->params[i].short_desc, "CoreAudio device name");

  1404.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1405. 

  1406.         i++;

  1407.         strcpy(desc->params[i].name, "input-latency");

  1408.         desc->params[i].character = 'I';

  1409.         desc->params[i].type = JackDriverParamUInt;

  1410.         desc->params[i].value.i = 0;

  1411.         strcpy(desc->params[i].short_desc, "Extra input latency (frames)");

  1412.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1413. 

  1414.         i++;

  1415.         strcpy(desc->params[i].name, "output-latency");

  1416.         desc->params[i].character = 'O';

  1417.         desc->params[i].type = JackDriverParamUInt;

  1418.         desc->params[i].value.i = 0;

  1419.         strcpy(desc->params[i].short_desc, "Extra output latency (frames)");

  1420.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1421. 

  1422.         i++;

  1423.         strcpy(desc->params[i].name, "list-devices");

  1424.         desc->params[i].character = 'l';

  1425.         desc->params[i].type = JackDriverParamBool;

  1426.         desc->params[i].value.i = TRUE;

  1427.         strcpy(desc->params[i].short_desc, "Display available CoreAudio devices");

  1428.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1429.         

  1430.         i++;

  1431.         strcpy(desc->params[i].name, "async-latency");

  1432.         desc->params[i].character = 'L';

  1433.         desc->params[i].type = JackDriverParamUInt;

  1434.         desc->params[i].value.i = 100;

  1435.         strcpy(desc->params[i].short_desc, "Extra output latency in aynchronous mode (percent)");

  1436.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1437.         

  1438.         i++;

  1439.         strcpy(desc->params[i].name, "grain");

  1440.         desc->params[i].character = 'G';

  1441.         desc->params[i].type = JackDriverParamUInt;

  1442.         desc->params[i].value.i = 100;

  1443.         strcpy(desc->params[i].short_desc, "Computation grain in RT thread (percent)");

  1444.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1445. 

  1446.         return desc;

  1447.     }

  1448. 

  1449.     SERVER_EXPORT Jack::JackDriverClientInterface* driver_initialize(Jack::JackLockedEngine* engine, Jack::JackSynchro* table, const JSList* params) 

  1450.     {

  1451.         jack_nframes_t srate = 44100;

  1452.         jack_nframes_t frames_per_interrupt = 128;

  1453.         int capture = FALSE;

  1454.         int playback = FALSE;

  1455.         int chan_in = 0;

  1456.         int chan_out = 0;

  1457.         bool monitor = false;

  1458.         const char* capture_driver_uid = "";

  1459.         const char* playback_driver_uid = "";

  1460.         const JSList *node;

  1461.         const jack_driver_param_t *param;

  1462.         jack_nframes_t systemic_input_latency = 0;

  1463.         jack_nframes_t systemic_output_latency = 0;

  1464.         int async_output_latency = 100;

  1465.         int computation_grain = -1;

  1466.     

  1467.         for (node = params; node; node = jack_slist_next(node)) {

  1468.             param = (const jack_driver_param_t *) node->data;

  1469.        

  1470.             switch (param->character) {

  1471. 

  1472.                 case 'd':

  1473.                     capture_driver_uid = strdup(param->value.str);

  1474.                     playback_driver_uid = strdup(param->value.str);

  1475.                     break;

  1476. 

  1477.                 case 'D':

  1478.                     capture = TRUE;

  1479.                     playback = TRUE;

  1480.                     break;

  1481. 

  1482.                 case 'c':

  1483.                     chan_in = chan_out = (int) param->value.ui;

  1484.                     break;

  1485. 

  1486.                 case 'i':

  1487.                     chan_in = (int) param->value.ui;

  1488.                     break;

  1489. 

  1490.                 case 'o':

  1491.                     chan_out = (int) param->value.ui;

  1492.                     break;

  1493. 

  1494.                 case 'C':

  1495.                     capture = TRUE;

  1496.                     if (strcmp(param->value.str, "none") != 0) {

  1497.                         capture_driver_uid = strdup(param->value.str);

  1498.                     }

  1499.                     break;

  1500. 

  1501.                 case 'P':

  1502.                     playback = TRUE;

  1503.                     if (strcmp(param->value.str, "none") != 0) {

  1504.                         playback_driver_uid = strdup(param->value.str);

  1505.                     }

  1506.                     break;

  1507. 

  1508.                 case 'm':

  1509.                     monitor = param->value.i;

  1510.                     break;

  1511. 

  1512.                 case 'r':

  1513.                     srate = param->value.ui;

  1514.                     break;

  1515. 

  1516.                 case 'p':

  1517.                     frames_per_interrupt = (unsigned int) param->value.ui;

  1518.                     break;

  1519. 

  1520.                 case 'I':

  1521.                     systemic_input_latency = param->value.ui;

  1522.                     break;

  1523. 

  1524.                 case 'O':

  1525.                     systemic_output_latency = param->value.ui;

  1526.                     break;

  1527. 

  1528.                 case 'l':

  1529.                     Jack::DisplayDeviceNames();

  1530.                     break;

  1531.                     

  1532.                 case 'L':

  1533.                     async_output_latency = param->value.ui;

  1534.                     break;

  1535.                     

  1536.                 case 'G':

  1537.                     computation_grain = param->value.ui;

  1538.                     break;

  1539.             }

  1540.         }

  1541. 

  1542.         /* duplex is the default */

  1543.         if (!capture && !playback) {

  1544.             capture = TRUE;

  1545.             playback = TRUE;

  1546.         }

  1547. 

  1548.         Jack::JackCoreAudioDriver* driver = new Jack::JackCoreAudioDriver("system", "coreaudio", engine, table);

  1549.         if (driver->Open(frames_per_interrupt, srate, capture, playback, chan_in, chan_out, monitor, capture_driver_uid, 

  1550.             playback_driver_uid, systemic_input_latency, systemic_output_latency, async_output_latency, computation_grain) == 0) {

  1551.             return driver;

  1552.         } else {

  1553.             delete driver;

  1554.             return NULL;

  1555.         }

  1556.     }

  1557. 

  1558. #ifdef __cplusplus

  1559. }

  1560. #endif

  1561.