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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 printError(OSStatus err)

  48. {

  49.     switch (err) {

  50.         case kAudioHardwareNoError:

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

  52.             break;

  53.         case kAudioConverterErr_FormatNotSupported:

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

  55.             break;

  56.         case kAudioConverterErr_OperationNotSupported:

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

  58.             break;

  59.         case kAudioConverterErr_PropertyNotSupported:

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

  61.             break;

  62.         case kAudioConverterErr_InvalidInputSize:

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

  64.             break;

  65.         case kAudioConverterErr_InvalidOutputSize:

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

  67.             break;

  68.         case kAudioConverterErr_UnspecifiedError:

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

  70.             break;

  71.         case kAudioConverterErr_BadPropertySizeError:

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

  73.             break;

  74.         case kAudioConverterErr_RequiresPacketDescriptionsError:

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

  76.             break;

  77.         case kAudioConverterErr_InputSampleRateOutOfRange:

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

  79.             break;

  80.         case kAudioConverterErr_OutputSampleRateOutOfRange:

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

  82.             break;

  83.         case kAudioHardwareNotRunningError:

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

  85.             break;

  86.         case kAudioHardwareUnknownPropertyError:

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

  88.             break;

  89.         case kAudioHardwareIllegalOperationError:

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

  91.             break;

  92.         case kAudioHardwareBadDeviceError:

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

  94.             break;

  95.         case kAudioHardwareBadStreamError:

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

  97.             break;

  98.         case kAudioDeviceUnsupportedFormatError:

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

  100.             break;

  101.         case kAudioDevicePermissionsError:

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

  103.             break;

  104.         case kAudioHardwareBadObjectError:

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

  106.             break;

  107.         case kAudioHardwareUnsupportedOperationError:

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

  109.             break;

  110.         default:

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

  112.             break;

  113.     }

  114. }

  115. 

  116. static OSStatus DisplayDeviceNames()

  117. {

  118.     UInt32 size;

  119.     Boolean isWritable;

  120.     int i, deviceNum;

  121.     OSStatus err;

  122.     CFStringRef UIname;

  123. 

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

  125.     if (err != noErr)

  126.         return err;

  127. 

  128.     deviceNum = size / sizeof(AudioDeviceID);

  129.     AudioDeviceID devices[deviceNum];

  130. 

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

  132.     if (err != noErr)

  133.         return err;

  134. 

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

  136.         char device_name[256];

  137.         char internal_name[256];

  138. 

  139.         size = sizeof(CFStringRef);

  140.         UIname = NULL;

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

  142.         if (err == noErr) {

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

  144.         } else {

  145.             goto error;

  146.         }

  147. 

  148.         size = 256;

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

  150.         if (err != noErr)

  151.             return err;

  152. 

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

  154.     }

  155. 

  156.     return noErr;

  157. 

  158. error:

  159.     if (UIname != NULL)

  160.         CFRelease(UIname);

  161.     return err;

  162. }

  163. 

  164. static CFStringRef GetDeviceName(AudioDeviceID id)

  165. {

  166.     UInt32 size = sizeof(CFStringRef);

  167.     CFStringRef UIname;

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

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

  170. }

  171. 

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

  173.                                      AudioUnitRenderActionFlags *ioActionFlags,

  174.                                      const AudioTimeStamp *inTimeStamp,

  175.                                      UInt32 inBusNumber,

  176.                                      UInt32 inNumberFrames,

  177.                                      AudioBufferList *ioData)

  178. {

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

  180.     driver->fActionFags = ioActionFlags;

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

  182.     driver->fDriverOutputData = ioData;

  183.     driver->CycleTakeBeginTime();

  184.     return driver->Process();

  185. }

  186. 

  187. int JackCoreAudioDriver::Read()

  188. {

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

  190.     return 0;

  191. }

  192. 

  193. int JackCoreAudioDriver::Write()

  194. {

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

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

  197.             float* buffer = GetOutputBuffer(i);

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

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

  200.             // Monitor ports

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

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

  203.         } else {

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

  205.         }

  206.     }

  207.     return 0;

  208. }

  209. 

  210. // Will run only once

  211. OSStatus JackCoreAudioDriver::MeasureCallback(AudioDeviceID inDevice,

  212.         const AudioTimeStamp* inNow,

  213.         const AudioBufferList* inInputData,

  214.         const AudioTimeStamp* inInputTime,

  215.         AudioBufferList* outOutputData,

  216.         const AudioTimeStamp* inOutputTime,

  217.         void* inClientData)

  218. {

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

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

  221.     

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

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

  224.     

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

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

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

  228.     }

  229.     

  230.     // Setup threadded based log function

  231.     set_threaded_log_function();

  232.     return noErr;

  233. }

  234. 

  235. OSStatus JackCoreAudioDriver::SRNotificationCallback(AudioDeviceID inDevice,

  236.         UInt32 inChannel,

  237.         Boolean	isInput,

  238.         AudioDevicePropertyID inPropertyID,

  239.         void* inClientData)

  240. {

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

  242. 

  243.     switch (inPropertyID) {

  244. 

  245.         case kAudioDevicePropertyNominalSampleRate: {

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

  247.             driver->fState = true;

  248.             break;

  249.         }

  250.     }

  251. 

  252.     return noErr;

  253. }

  254. 

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

  256. OSStatus JackCoreAudioDriver::DeviceNotificationCallback(AudioDeviceID inDevice,

  257.         UInt32 inChannel,

  258.         Boolean	isInput,

  259.         AudioDevicePropertyID inPropertyID,

  260.         void* inClientData)

  261. {

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

  263.          

  264.     switch (inPropertyID) {

  265.         

  266.         case kAudioDeviceProcessorOverload: {

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

  268.             jack_time_t cur_time = GetMicroSeconds();

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

  270.             break;

  271.         }

  272.         

  273.         case kAudioDevicePropertyStreamConfiguration: {

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

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

  276.             driver->CloseAUHAL();

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

  278.             return kAudioHardwareUnsupportedOperationError;

  279.         }

  280.         

  281.         case kAudioDevicePropertyNominalSampleRate: {

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

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

  284.             driver->CloseAUHAL();

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

  286.             return kAudioHardwareUnsupportedOperationError;

  287. 		}

  288.             

  289.     }

  290.     return noErr;

  291. }

  292. 

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

  294. {

  295.     UInt32 size = sizeof(AudioValueTranslation);

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

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

  298. 

  299.     if (inIUD == NULL) {

  300.         return kAudioHardwareUnspecifiedError;

  301.     } else {

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

  303.         CFRelease(inIUD);

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

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

  306.     }

  307. }

  308. 

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

  310. {

  311.     OSStatus res;

  312.     UInt32 theSize = sizeof(UInt32);

  313.     AudioDeviceID inDefault;

  314.     AudioDeviceID outDefault;

  315. 

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

  317.         return res;

  318. 

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

  320.         return res;

  321. 

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

  323. 

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

  325.     if (inDefault == outDefault) {

  326.         *id = inDefault;

  327.         return noErr;

  328.     } else {

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

  330.         return kAudioHardwareBadDeviceError;

  331.     }

  332. }

  333. 

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

  335. {

  336.     OSStatus res;

  337.     UInt32 theSize = sizeof(UInt32);

  338.     AudioDeviceID inDefault;

  339. 

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

  341.         return res;

  342. 

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

  344.     *id = inDefault;

  345.     return noErr;

  346. }

  347. 

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

  349. {

  350.     OSStatus res;

  351.     UInt32 theSize = sizeof(UInt32);

  352.     AudioDeviceID outDefault;

  353. 

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

  355.         return res;

  356. 

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

  358.     *id = outDefault;

  359.     return noErr;

  360. }

  361. 

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

  363. {

  364.     UInt32 size = 256;

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

  366. }

  367. 

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

  369. {

  370.     OSStatus err = noErr;

  371.     UInt32	outSize;

  372.     Boolean	outWritable;

  373.     AudioBufferList* bufferList = 0;

  374. 

  375.     channelCount = 0;

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

  377.     if (err == noErr) {

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

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

  380.         if (err == noErr) {

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

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

  383.         }

  384. 

  385.         if (bufferList)

  386.             free(bufferList);

  387.     }

  388. 

  389.     return err;

  390. }

  391. 

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

  393.         : JackAudioDriver(name, alias, engine, table), fJackInputData(NULL), fDriverOutputData(NULL), fPluginID(0), fState(false), fIOUsage(1.f),fComputationGrain(-1.f)

  394. {}

  395. 

  396. JackCoreAudioDriver::~JackCoreAudioDriver()

  397. {}

  398. 

  399. OSStatus JackCoreAudioDriver::DestroyAggregateDevice() 

  400. {

  401.     OSStatus osErr = noErr;

  402.     AudioObjectPropertyAddress pluginAOPA;

  403.     pluginAOPA.mSelector = kAudioPlugInDestroyAggregateDevice;

  404.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  405.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  406.     UInt32 outDataSize;

  407.   

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

  409.     if (osErr != noErr) {

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

  411.         printError(osErr);

  412.         return osErr;

  413.     }

  414.         

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

  416.     if (osErr != noErr) {

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

  418.         printError(osErr);

  419.         return osErr;

  420.     }

  421.     

  422.     return noErr;

  423. }

  424. 

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

  426. {

  427.     OSStatus osErr = noErr;

  428.     UInt32 outSize;

  429.     Boolean outWritable;

  430. 

  431.     //---------------------------------------------------------------------------

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

  433.     //---------------------------------------------------------------------------

  434.  

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

  436.     if (osErr != noErr) 

  437.         return osErr;

  438. 

  439.     AudioValueTranslation pluginAVT;

  440. 

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

  442.    

  443.     pluginAVT.mInputData = &inBundleRef;

  444.     pluginAVT.mInputDataSize = sizeof(inBundleRef);

  445.     pluginAVT.mOutputData = &fPluginID;

  446.     pluginAVT.mOutputDataSize = sizeof(fPluginID);

  447. 

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

  449.     if (osErr != noErr) 

  450.         return osErr;

  451. 

  452.     //-------------------------------------------------

  453.     // Create a CFDictionary for our aggregate device

  454.     //-------------------------------------------------

  455. 

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

  457. 

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

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

  460.     

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

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

  463. 

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

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

  466.     

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

  468.     int value = 1;

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

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

  471.   

  472.     //-------------------------------------------------

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

  474.     //-------------------------------------------------

  475.     

  476.     CFStringRef captureDeviceUID = GetDeviceName(captureDeviceID);

  477.     CFStringRef playbackDeviceUID = GetDeviceName(playbackDeviceID);

  478.     

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

  480.         return -1;

  481.   

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

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

  484. 

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

  486.     CFArrayAppendValue(subDevicesArray, captureDeviceUID);

  487.     CFArrayAppendValue(subDevicesArray, playbackDeviceUID);

  488. 

  489.     //-----------------------------------------------------------------------

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

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

  492.  

  493.     AudioObjectPropertyAddress pluginAOPA;

  494.     pluginAOPA.mSelector = kAudioPlugInCreateAggregateDevice;

  495.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  496.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  497.     UInt32 outDataSize;

  498. 

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

  500.     if (osErr != noErr) 

  501.         return osErr;

  502. 

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

  504.     if (osErr != noErr) 

  505.         return osErr;

  506. 

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

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

  509.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  510. 

  511.     //-------------------------

  512.     // Set the sub-device list

  513.     //-------------------------

  514. 

  515.     pluginAOPA.mSelector = kAudioAggregateDevicePropertyFullSubDeviceList;

  516.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  517.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  518.     outDataSize = sizeof(CFMutableArrayRef);

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

  520.     if (osErr != noErr)

  521.         return osErr;

  522. 

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

  524.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  525. 

  526.     //-----------------------

  527.     // Set the master device

  528.     //-----------------------

  529. 

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

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

  532.     pluginAOPA.mSelector = kAudioAggregateDevicePropertyMasterSubDevice;

  533.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  534.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  535.     outDataSize = sizeof(CFStringRef);

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

  537.     if (osErr != noErr) 

  538.         return osErr;

  539. 

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

  541.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  542. 

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

  544.     // Clean up

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

  546.     

  547.     CFRelease(AggregateDeviceNumberRef);

  548. 

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

  550.     CFRelease(aggDeviceDict);

  551.     CFRelease(subDevicesArray);

  552. 

  553.     // release the device UID

  554.     CFRelease(captureDeviceUID);

  555.     CFRelease(playbackDeviceUID);

  556.     

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

  558.     return noErr;

  559. }

  560. 

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

  562. {

  563.     capture_driver_name[0] = 0;

  564.     playback_driver_name[0] = 0;

  565. 

  566.     // Duplex

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

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

  569.           

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

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

  572.             

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

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

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

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

  577.                     return -1;

  578.                 }

  579.             }

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

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

  582.                 return -1;

  583.             }

  584.             

  585.         } else {

  586.         

  587.             // Creates agregate device

  588.             AudioDeviceID captureID, playbackID;

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

  590.                 return -1;

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

  592.                 return -1;

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

  594.                 return -1;

  595.         }

  596. 

  597.         // Capture only

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

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

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

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

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

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

  604.                 return -1;

  605.             }

  606.         }

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

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

  609.             return -1;

  610.         }

  611. 

  612.         // Playback only

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

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

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

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

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

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

  619.                 return -1;

  620.             }

  621.         }

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

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

  624.             return -1;

  625.         }

  626. 

  627.         // Use default driver in duplex mode

  628.     } else {

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

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

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

  632.             return -1;

  633.         }

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

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

  636.             return -1;

  637.         }

  638.     }

  639. 

  640.     return 0;

  641. }

  642. 

  643. /*

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

  645. */

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

  647. {

  648.     OSStatus err = noErr;

  649. 

  650.     if (capturing) {

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

  652.         if (err != noErr) {

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

  654.             printError(err);

  655.             return -1;

  656.         } else {

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

  658.         }

  659.     }

  660. 

  661.     if (playing) {

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

  663.         if (err != noErr) {

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

  665.             printError(err);

  666.             return -1;

  667.         } else {

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

  669.         }

  670.     }

  671. 

  672.     if (inchannels > in_nChannels) {

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

  674.         if (strict)

  675.             return -1;

  676.     }

  677. 

  678.     if (outchannels > out_nChannels) {

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

  680.         if (strict)

  681.             return -1;

  682.     }

  683. 

  684.     if (inchannels == 0) {

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

  686.         inchannels = in_nChannels;

  687.     }

  688. 

  689.     if (outchannels == 0) {

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

  691.         outchannels = out_nChannels;

  692.     }

  693. 

  694.     return 0;

  695. }

  696. 

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

  698. {

  699.     OSStatus err = noErr;

  700.     UInt32 outSize;

  701.     Float64 sampleRate;

  702. 

  703.     // Setting buffer size

  704.     outSize = sizeof(UInt32);

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

  706.     if (err != noErr) {

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

  708.         printError(err);

  709.         return -1;

  710.     }

  711. 

  712.     // Get sample rate

  713.     outSize =  sizeof(Float64);

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

  715.     if (err != noErr) {

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

  717.         printError(err);

  718.         return -1;

  719.     }

  720. 

  721.     // If needed, set new sample rate

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

  723.         sampleRate = (Float64)samplerate;

  724. 

  725.         // To get SR change notification

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

  727.         if (err != noErr) {

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

  729.             printError(err);

  730.             return -1;

  731.         }

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

  733.         if (err != noErr) {

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

  735.             printError(err);

  736.             return -1;

  737.         }

  738. 

  739.         // Waiting for SR change notification

  740.         int count = 0;

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

  742.             usleep(100000);

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

  744.         }

  745. 

  746.         // Remove SR change notification

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

  748.     }

  749. 

  750.     return 0;

  751. }

  752. 

  753. int JackCoreAudioDriver::OpenAUHAL(bool capturing,

  754.                                    bool playing,

  755.                                    int inchannels,

  756.                                    int outchannels,

  757.                                    int in_nChannels,

  758.                                    int out_nChannels,

  759.                                    jack_nframes_t buffer_size,

  760.                                    jack_nframes_t samplerate,

  761.                                    bool strict)

  762. {

  763.     ComponentResult err1;

  764.     UInt32 enableIO;

  765.     AudioStreamBasicDescription srcFormat, dstFormat;

  766. 

  767.     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);

  768. 

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

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

  771.         return -1;

  772.     }

  773.          

  774.     // AUHAL

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

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

  777. 

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

  779.     if (err1 != noErr) {

  780.         jack_error("Error calling OpenAComponent");

  781.         printError(err1);

  782.         return -1;

  783.     }

  784. 

  785.     err1 = AudioUnitInitialize(fAUHAL);

  786.     if (err1 != noErr) {

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

  788.         printError(err1);

  789.         return -1;

  790.     }

  791. 

  792.     // Start I/O

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

  794.         enableIO = 1;

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

  796.     } else {

  797.         enableIO = 0;

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

  799.     }

  800.     

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

  802.     if (err1 != noErr) {

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

  804.         printError(err1);

  805.         if (strict)

  806.             return -1;

  807.     }

  808. 

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

  810.         enableIO = 1;

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

  812.     } else {

  813.         enableIO = 0;

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

  815.     }

  816.     

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

  818.     if (err1 != noErr) {

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

  820.         printError(err1);

  821.         if (strict)

  822.             return -1;

  823.     }

  824.     

  825.     AudioDeviceID currAudioDeviceID;

  826.     UInt32 size = sizeof(AudioDeviceID);

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

  828.     if (err1 != noErr) {

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

  830.         printError(err1);

  831.         if (strict)

  832.             return -1;

  833.     } else {

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

  835.     }

  836. 

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

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

  839.     if (err1 != noErr) {

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

  841.         printError(err1);

  842.         if (strict)

  843.             return -1;

  844.     }

  845.   

  846.     // Set buffer size

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

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

  849.         if (err1 != noErr) {

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

  851.             printError(err1);

  852.             if (strict)

  853.                 return -1;

  854.         }

  855.     }

  856. 

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

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

  859.         if (err1 != noErr) {

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

  861.             printError(err1);

  862.             if (strict)

  863.                 return -1;

  864.         }

  865.     }

  866. 

  867.     // Setup channel map

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

  869.         SInt32 chanArr[in_nChannels];

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

  871.             chanArr[i] = -1;

  872.         }

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

  874.             chanArr[i] = i;

  875.         }

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

  877.         if (err1 != noErr) {

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

  879.             printError(err1);

  880.         }

  881.     }

  882. 

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

  884.         SInt32 chanArr[out_nChannels];

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

  886.             chanArr[i] = -1;

  887.         }

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

  889.             chanArr[i] = i;

  890.         }

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

  892.         if (err1 != noErr) {

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

  894.             printError(err1);

  895.         }

  896.     }

  897. 

  898.     // Setup stream converters

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

  900.     srcFormat.mSampleRate = samplerate;

  901.     srcFormat.mFormatID = kAudioFormatLinearPCM;

  902.     srcFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;

  903.     srcFormat.mBytesPerPacket = sizeof(float);

  904.     srcFormat.mFramesPerPacket = 1;

  905.     srcFormat.mBytesPerFrame = sizeof(float);

  906.     srcFormat.mChannelsPerFrame = outchannels;

  907.     srcFormat.mBitsPerChannel = 32;

  908. 

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

  910.     if (err1 != noErr) {

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

  912.         printError(err1);

  913.     }

  914. 

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

  916.     dstFormat.mSampleRate = samplerate;

  917.     dstFormat.mFormatID = kAudioFormatLinearPCM;

  918.     dstFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;

  919.     dstFormat.mBytesPerPacket = sizeof(float);

  920.     dstFormat.mFramesPerPacket = 1;

  921.     dstFormat.mBytesPerFrame = sizeof(float);

  922.     dstFormat.mChannelsPerFrame = inchannels;

  923.     dstFormat.mBitsPerChannel = 32;

  924. 

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

  926.     if (err1 != noErr) {

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

  928.         printError(err1);

  929.     }

  930. 

  931.     // Setup callbacks

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

  933.         AURenderCallbackStruct output;

  934.         output.inputProc = Render;

  935.         output.inputProcRefCon = this;

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

  937.         if (err1 != noErr) {

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

  939.             printError(err1);

  940.             return -1;

  941.         }

  942.     } else {

  943.         AURenderCallbackStruct output;

  944.         output.inputProc = Render;

  945.         output.inputProcRefCon = this;

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

  947.         if (err1 != noErr) {

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

  949.             printError(err1);

  950.             return -1;

  951.         }

  952.     }

  953. 

  954.     return 0;

  955. }

  956. 

  957. int JackCoreAudioDriver::SetupBuffers(int inchannels)

  958. {

  959.     // Prepare buffers

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

  961.     if (fJackInputData == 0) {

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

  963.         return -1;

  964.     }

  965.     fJackInputData->mNumberBuffers = inchannels;

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

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

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

  969.     }

  970.     return 0;

  971. }

  972. 

  973. void JackCoreAudioDriver::DisposeBuffers()

  974. {

  975.     if (fJackInputData) {

  976.         free(fJackInputData);

  977.         fJackInputData = 0;

  978.     }

  979. }

  980. 

  981. void JackCoreAudioDriver::CloseAUHAL()

  982. {

  983.     AudioUnitUninitialize(fAUHAL);

  984.     CloseComponent(fAUHAL);

  985. }

  986. 

  987. int JackCoreAudioDriver::AddListeners()

  988. {

  989.     OSStatus err = noErr;

  990. 

  991.     // Add listeners

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

  993.     if (err != noErr) {

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

  995.         printError(err);

  996.         return -1;

  997.     }

  998. 

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

  1000.     if (err != noErr) {

  1001.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioHardwarePropertyDevices");

  1002.         printError(err);

  1003.         return -1;

  1004.     }

  1005. 

  1006.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, DeviceNotificationCallback, this);

  1007.     if (err != noErr) {

  1008.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyNominalSampleRate");

  1009.         printError(err);

  1010.         return -1;

  1011.     }

  1012. 

  1013.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyDeviceIsRunning, DeviceNotificationCallback, this);

  1014.     if (err != noErr) {

  1015.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyDeviceIsRunning");

  1016.         printError(err);

  1017.         return -1;

  1018.     }

  1019. 

  1020.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback, this);

  1021.     if (err != noErr) {

  1022.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyStreamConfiguration");

  1023.         printError(err);

  1024.         return -1;

  1025.     }

  1026. 

  1027.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, false, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback, this);

  1028.     if (err != noErr) {

  1029.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyStreamConfiguration");

  1030.         printError(err);

  1031.         return -1;

  1032.     }

  1033. 

  1034.     if (!fEngineControl->fSyncMode && fIOUsage != 1.f) {

  1035.         UInt32 outSize = sizeof(float);

  1036.         err = AudioDeviceSetProperty(fDeviceID, NULL, 0, false, kAudioDevicePropertyIOCycleUsage, outSize, &fIOUsage);

  1037.         if (err != noErr) {

  1038.             jack_error("Error calling AudioDeviceSetProperty kAudioDevicePropertyIOCycleUsage");

  1039.             printError(err);

  1040.         }

  1041.     }

  1042. 

  1043.     return 0;

  1044. }

  1045. 

  1046. void JackCoreAudioDriver::RemoveListeners()

  1047. {

  1048.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDeviceProcessorOverload, DeviceNotificationCallback);

  1049.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioHardwarePropertyDevices, DeviceNotificationCallback);

  1050.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, DeviceNotificationCallback);

  1051.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyDeviceIsRunning, DeviceNotificationCallback);

  1052.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback);

  1053.     AudioDeviceRemovePropertyListener(fDeviceID, 0, false, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback);

  1054. }

  1055. 

  1056. int JackCoreAudioDriver::Open(jack_nframes_t buffer_size,

  1057.                               jack_nframes_t samplerate,

  1058.                               bool capturing,

  1059.                               bool playing,

  1060.                               int inchannels,

  1061.                               int outchannels,

  1062.                               bool monitor,

  1063.                               const char* capture_driver_uid,

  1064.                               const char* playback_driver_uid,

  1065.                               jack_nframes_t capture_latency,

  1066.                               jack_nframes_t playback_latency,

  1067.                               int async_output_latency,

  1068.                               int computation_grain)

  1069. {

  1070.     int in_nChannels = 0;

  1071.     int out_nChannels = 0;

  1072.     char capture_driver_name[256];

  1073.     char playback_driver_name[256];

  1074. 

  1075.     // Keep initial state

  1076.     fCapturing = capturing;

  1077.     fPlaying = playing;

  1078.     fInChannels = inchannels;

  1079.     fOutChannels = outchannels;

  1080.     fMonitor = monitor;

  1081.     strcpy(fCaptureUID, capture_driver_uid);

  1082.     strcpy(fPlaybackUID, playback_driver_uid);

  1083.     fCaptureLatency = capture_latency;

  1084.     fPlaybackLatency = playback_latency;

  1085.     fIOUsage = float(async_output_latency) / 100.f;

  1086.     fComputationGrain = float(computation_grain) / 100.f;

  1087.     

  1088.     SInt32 major;

  1089.     SInt32 minor;

  1090.     Gestalt(gestaltSystemVersionMajor, &major);

  1091.     Gestalt(gestaltSystemVersionMinor, &minor);

  1092.     

  1093.     // Starting with 10.6 systems...

  1094.     if (major == 10 && minor >=6) {

  1095.         CFRunLoopRef theRunLoop = NULL;

  1096.         AudioObjectPropertyAddress theAddress = { kAudioHardwarePropertyRunLoop, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };

  1097.         OSStatus theError = AudioObjectSetPropertyData (kAudioObjectSystemObject, &theAddress, 0, NULL, sizeof(CFRunLoopRef), &theRunLoop);

  1098.         if (theError != noErr) {

  1099.             jack_error("JackCoreAudioDriver::Open kAudioHardwarePropertyRunLoop error");

  1100.         }

  1101.     }

  1102. 

  1103.     if (SetupDevices(capture_driver_uid, playback_driver_uid, capture_driver_name, playback_driver_name) < 0)

  1104.         return -1;

  1105. 

  1106.     // Generic JackAudioDriver Open

  1107.     if (JackAudioDriver::Open(buffer_size, samplerate, capturing, playing, inchannels, outchannels, monitor, capture_driver_name, playback_driver_name, capture_latency, playback_latency) != 0)

  1108.         return -1;

  1109. 

  1110.     if (SetupChannels(capturing, playing, inchannels, outchannels, in_nChannels, out_nChannels, true) < 0)

  1111.         return -1;

  1112. 

  1113.     if (SetupBufferSizeAndSampleRate(buffer_size, samplerate)  < 0)

  1114.         return -1;

  1115.  

  1116.     if (OpenAUHAL(capturing, playing, inchannels, outchannels, in_nChannels, out_nChannels, buffer_size, samplerate, true) < 0)

  1117.         goto error;

  1118. 

  1119.     if (capturing && inchannels > 0)

  1120.         if (SetupBuffers(inchannels) < 0)

  1121.             goto error;

  1122. 

  1123.     if (AddListeners() < 0)

  1124.         goto error;

  1125. 

  1126.     // Core driver may have changed the in/out values

  1127.     fCaptureChannels = inchannels;

  1128.     fPlaybackChannels = outchannels;

  1129.     return noErr;

  1130. 

  1131. error:

  1132.     Close();

  1133.     return -1;

  1134. }

  1135. 

  1136. int JackCoreAudioDriver::Close()

  1137. {

  1138.     jack_log("JackCoreAudioDriver::Close");

  1139.     Stop();

  1140.     JackAudioDriver::Close();

  1141.     RemoveListeners();

  1142.     DisposeBuffers();

  1143.     CloseAUHAL();

  1144.     if (fPluginID > 0)

  1145.         DestroyAggregateDevice();

  1146.     return 0;

  1147. }

  1148. 

  1149. int JackCoreAudioDriver::Attach()

  1150. {

  1151.     OSStatus err;

  1152.     JackPort* port;

  1153.     jack_port_id_t port_index;

  1154.     UInt32 size;

  1155.     Boolean isWritable;

  1156.     char channel_name[64];

  1157.     char name[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];

  1158.     char alias[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];

  1159.     unsigned long port_flags = JackPortIsOutput | JackPortIsPhysical | JackPortIsTerminal;

  1160. 

  1161.     jack_log("JackCoreAudioDriver::Attach fBufferSize %ld fSampleRate %ld", fEngineControl->fBufferSize, fEngineControl->fSampleRate);

  1162. 

  1163.     for (int i = 0; i < fCaptureChannels; i++) {

  1164. 

  1165.         err = AudioDeviceGetPropertyInfo(fDeviceID, i + 1, true, kAudioDevicePropertyChannelName, &size, &isWritable);

  1166.         if (err != noErr)

  1167.             jack_log("AudioDeviceGetPropertyInfo kAudioDevicePropertyChannelName error ");

  1168.         if (err == noErr && size > 0) {

  1169.             err = AudioDeviceGetProperty(fDeviceID, i + 1, true, kAudioDevicePropertyChannelName, &size, channel_name);

  1170.             if (err != noErr)

  1171.                 jack_log("AudioDeviceGetProperty kAudioDevicePropertyChannelName error ");

  1172.             snprintf(alias, sizeof(alias) - 1, "%s:%s:out_%s%u", fAliasName, fCaptureDriverName, channel_name, i + 1);

  1173.         } else {

  1174.             snprintf(alias, sizeof(alias) - 1, "%s:%s:out%u", fAliasName, fCaptureDriverName, i + 1);

  1175.         }

  1176. 

  1177.         snprintf(name, sizeof(name) - 1, "%s:capture_%d", fClientControl.fName, i + 1);

  1178. 

  1179.         if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize)) == NO_PORT) {

  1180.             jack_error("Cannot register port for %s", name);

  1181.             return -1;

  1182.         }

  1183. 

  1184.         size = sizeof(UInt32);

  1185.         UInt32 value1 = 0;

  1186.         UInt32 value2 = 0;

  1187.         err = AudioDeviceGetProperty(fDeviceID, 0, true, kAudioDevicePropertyLatency, &size, &value1);

  1188.         if (err != noErr)

  1189.             jack_log("AudioDeviceGetProperty kAudioDevicePropertyLatency error ");

  1190.         err = AudioDeviceGetProperty(fDeviceID, 0, true, kAudioDevicePropertySafetyOffset, &size, &value2);

  1191.         if (err != noErr)

  1192.             jack_log("AudioDeviceGetProperty kAudioDevicePropertySafetyOffset error ");

  1193. 

  1194.         port = fGraphManager->GetPort(port_index);

  1195.         port->SetAlias(alias);

  1196.         port->SetLatency(fEngineControl->fBufferSize + value1 + value2 + fCaptureLatency);

  1197.         fCapturePortList[i] = port_index;

  1198.     }

  1199. 

  1200.     port_flags = JackPortIsInput | JackPortIsPhysical | JackPortIsTerminal;

  1201. 

  1202.     for (int i = 0; i < fPlaybackChannels; i++) {

  1203. 

  1204.         err = AudioDeviceGetPropertyInfo(fDeviceID, i + 1, false, kAudioDevicePropertyChannelName, &size, &isWritable);

  1205.         if (err != noErr)

  1206.             jack_log("AudioDeviceGetPropertyInfo kAudioDevicePropertyChannelName error ");

  1207.         if (err == noErr && size > 0) {

  1208.             err = AudioDeviceGetProperty(fDeviceID, i + 1, false, kAudioDevicePropertyChannelName, &size, channel_name);

  1209.             if (err != noErr)

  1210.                 jack_log("AudioDeviceGetProperty kAudioDevicePropertyChannelName error ");

  1211.             snprintf(alias, sizeof(alias) - 1, "%s:%s:in_%s%u", fAliasName, fPlaybackDriverName, channel_name, i + 1);

  1212.         } else {

  1213.             snprintf(alias, sizeof(alias) - 1, "%s:%s:in%u", fAliasName, fPlaybackDriverName, i + 1);

  1214.         }

  1215. 

  1216.         snprintf(name, sizeof(name) - 1, "%s:playback_%d", fClientControl.fName, i + 1);

  1217. 

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

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

  1220.             return -1;

  1221.         }

  1222. 

  1223.         size = sizeof(UInt32);

  1224.         UInt32 value1 = 0;

  1225.         UInt32 value2 = 0;

  1226.         err = AudioDeviceGetProperty(fDeviceID, 0, false, kAudioDevicePropertyLatency, &size, &value1);

  1227.         if (err != noErr)

  1228.             jack_log("AudioDeviceGetProperty kAudioDevicePropertyLatency error ");

  1229.         err = AudioDeviceGetProperty(fDeviceID, 0, false, kAudioDevicePropertySafetyOffset, &size, &value2);

  1230.         if (err != noErr)

  1231.             jack_log("AudioDeviceGetProperty kAudioDevicePropertySafetyOffset error ");

  1232. 

  1233.         port = fGraphManager->GetPort(port_index);

  1234.         port->SetAlias(alias);

  1235.         // Add more latency if "async" mode is used...

  1236.         port->SetLatency(fEngineControl->fBufferSize + ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize * fIOUsage) + value1 + value2 + fPlaybackLatency);

  1237.         fPlaybackPortList[i] = port_index;

  1238. 

  1239.         // Monitor ports

  1240.         if (fWithMonitorPorts) {

  1241.             jack_log("Create monitor port ");

  1242.             snprintf(name, sizeof(name) - 1, "%s:monitor_%u", fClientControl.fName, i + 1);

  1243.             if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, fEngineControl->fBufferSize)) == NO_PORT) {

  1244.                 jack_error("Cannot register monitor port for %s", name);

  1245.                 return -1;

  1246.             } else {

  1247.                 port = fGraphManager->GetPort(port_index);

  1248.                 port->SetAlias(alias);

  1249.                 port->SetLatency(fEngineControl->fBufferSize);

  1250.                 fMonitorPortList[i] = port_index;

  1251.             }

  1252.         }

  1253.     }

  1254. 

  1255.     // Input buffers do no change : prepare them only once

  1256.     for (int i = 0; i < fCaptureChannels; i++) {

  1257.         fJackInputData->mBuffers[i].mData = GetInputBuffer(i);

  1258.     }

  1259. 

  1260.     return 0;

  1261. }

  1262. 

  1263. int JackCoreAudioDriver::Start()

  1264. {

  1265.     jack_log("JackCoreAudioDriver::Start");

  1266.     JackAudioDriver::Start();

  1267. /*

  1268. #ifdef MAC_OS_X_VERSION_10_5

  1269.     OSStatus err = AudioDeviceCreateIOProcID(fDeviceID, MeasureCallback, this, &fMesureCallbackID);

  1270. #else

  1271.     OSStatus err = AudioDeviceAddIOProc(fDeviceID, MeasureCallback, this);

  1272. #endif

  1273. */

  1274.     OSStatus err = AudioDeviceAddIOProc(fDeviceID, MeasureCallback, this);

  1275.     

  1276.     if (err != noErr)

  1277.         return -1;

  1278. 

  1279.     err = AudioOutputUnitStart(fAUHAL);

  1280.     if (err != noErr)

  1281.         return -1;

  1282. 

  1283.     if ((err = AudioDeviceStart(fDeviceID, MeasureCallback)) != noErr) {

  1284.         jack_error("Cannot start MeasureCallback");

  1285.         printError(err);

  1286.         return -1;

  1287.     }

  1288. 

  1289.     return 0;

  1290. }

  1291. 

  1292. int JackCoreAudioDriver::Stop()

  1293. {

  1294.     jack_log("JackCoreAudioDriver::Stop");

  1295.     AudioDeviceStop(fDeviceID, MeasureCallback);

  1296. /*

  1297. #ifdef MAC_OS_X_VERSION_10_5

  1298.     AudioDeviceDestroyIOProcID(fDeviceID, fMesureCallbackID);

  1299. #else

  1300.     AudioDeviceRemoveIOProc(fDeviceID, MeasureCallback);

  1301. #endif

  1302. */

  1303.     AudioDeviceRemoveIOProc(fDeviceID, MeasureCallback);

  1304.     return (AudioOutputUnitStop(fAUHAL) == noErr) ? 0 : -1;

  1305. }

  1306. 

  1307. int JackCoreAudioDriver::SetBufferSize(jack_nframes_t buffer_size)

  1308. {

  1309.     OSStatus err;

  1310.     UInt32 outSize = sizeof(UInt32);

  1311. 

  1312.     err = AudioDeviceSetProperty(fDeviceID, NULL, 0, false, kAudioDevicePropertyBufferFrameSize, outSize, &buffer_size);

  1313.     if (err != noErr) {

  1314.         jack_error("Cannot set buffer size %ld", buffer_size);

  1315.         printError(err);

  1316.         return -1;

  1317.     }

  1318. 

  1319.     JackAudioDriver::SetBufferSize(buffer_size); // never fails

  1320. 

  1321.     // Input buffers do no change : prepare them only once

  1322.     for (int i = 0; i < fCaptureChannels; i++) {

  1323.         fJackInputData->mBuffers[i].mNumberChannels = 1;

  1324.         fJackInputData->mBuffers[i].mDataByteSize = fEngineControl->fBufferSize * sizeof(float);

  1325.         fJackInputData->mBuffers[i].mData = GetInputBuffer(i);

  1326.     }

  1327. 

  1328.     return 0;

  1329. }

  1330. 

  1331. } // end of namespace

  1332. 

  1333. 

  1334. #ifdef __cplusplus

  1335. extern "C"

  1336. {

  1337. #endif

  1338. 

  1339.     SERVER_EXPORT jack_driver_desc_t* driver_get_descriptor() 

  1340.     {

  1341.         jack_driver_desc_t *desc;

  1342.         unsigned int i;

  1343.         desc = (jack_driver_desc_t*)calloc(1, sizeof(jack_driver_desc_t));

  1344. 

  1345.         strcpy(desc->name, "coreaudio");                                    // size MUST be less then JACK_DRIVER_NAME_MAX + 1

  1346.         strcpy(desc->desc, "Apple CoreAudio API based audio backend");      // size MUST be less then JACK_DRIVER_PARAM_DESC + 1

  1347.         

  1348.         desc->nparams = 15;

  1349.         desc->params = (jack_driver_param_desc_t*)calloc(desc->nparams, sizeof(jack_driver_param_desc_t));

  1350. 

  1351.         i = 0;

  1352.         strcpy(desc->params[i].name, "channels");

  1353.         desc->params[i].character = 'c';

  1354.         desc->params[i].type = JackDriverParamInt;

  1355.         desc->params[i].value.ui = 0;

  1356.         strcpy(desc->params[i].short_desc, "Maximum number of channels");

  1357.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1358. 

  1359.         i++;

  1360.         strcpy(desc->params[i].name, "inchannels");

  1361.         desc->params[i].character = 'i';

  1362.         desc->params[i].type = JackDriverParamInt;

  1363.         desc->params[i].value.ui = 0;

  1364.         strcpy(desc->params[i].short_desc, "Maximum number of input channels");

  1365.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1366. 

  1367.         i++;

  1368.         strcpy(desc->params[i].name, "outchannels");

  1369.         desc->params[i].character = 'o';

  1370.         desc->params[i].type = JackDriverParamInt;

  1371.         desc->params[i].value.ui = 0;

  1372.         strcpy(desc->params[i].short_desc, "Maximum number of output channels");

  1373.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1374. 

  1375.         i++;

  1376.         strcpy(desc->params[i].name, "capture");

  1377.         desc->params[i].character = 'C';

  1378.         desc->params[i].type = JackDriverParamString;

  1379.         strcpy(desc->params[i].value.str, "will take default CoreAudio input device");

  1380.         strcpy(desc->params[i].short_desc, "Provide capture ports. Optionally set CoreAudio device name");

  1381.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1382. 

  1383.         i++;

  1384.         strcpy(desc->params[i].name, "playback");

  1385.         desc->params[i].character = 'P';

  1386.         desc->params[i].type = JackDriverParamString;

  1387.         strcpy(desc->params[i].value.str, "will take default CoreAudio output device");

  1388.         strcpy(desc->params[i].short_desc, "Provide playback ports. Optionally set CoreAudio device name");

  1389.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1390. 

  1391.         i++;

  1392.         strcpy (desc->params[i].name, "monitor");

  1393.         desc->params[i].character = 'm';

  1394.         desc->params[i].type = JackDriverParamBool;

  1395.         desc->params[i].value.i = 0;

  1396.         strcpy(desc->params[i].short_desc, "Provide monitor ports for the output");

  1397.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1398. 

  1399.         i++;

  1400.         strcpy(desc->params[i].name, "duplex");

  1401.         desc->params[i].character = 'D';

  1402.         desc->params[i].type = JackDriverParamBool;

  1403.         desc->params[i].value.i = TRUE;

  1404.         strcpy(desc->params[i].short_desc, "Provide both capture and playback ports");

  1405.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1406. 

  1407.         i++;

  1408.         strcpy(desc->params[i].name, "rate");

  1409.         desc->params[i].character = 'r';

  1410.         desc->params[i].type = JackDriverParamUInt;

  1411.         desc->params[i].value.ui = 44100U;

  1412.         strcpy(desc->params[i].short_desc, "Sample rate");

  1413.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1414. 

  1415.         i++;

  1416.         strcpy(desc->params[i].name, "period");

  1417.         desc->params[i].character = 'p';

  1418.         desc->params[i].type = JackDriverParamUInt;

  1419.         desc->params[i].value.ui = 128U;

  1420.         strcpy(desc->params[i].short_desc, "Frames per period");

  1421.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1422. 

  1423.         i++;

  1424.         strcpy(desc->params[i].name, "device");

  1425.         desc->params[i].character = 'd';

  1426.         desc->params[i].type = JackDriverParamString;

  1427.         strcpy(desc->params[i].value.str, "will take default CoreAudio device name");

  1428.         strcpy(desc->params[i].short_desc, "CoreAudio device name");

  1429.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1430. 

  1431.         i++;

  1432.         strcpy(desc->params[i].name, "input-latency");

  1433.         desc->params[i].character = 'I';

  1434.         desc->params[i].type = JackDriverParamUInt;

  1435.         desc->params[i].value.i = 0;

  1436.         strcpy(desc->params[i].short_desc, "Extra input latency (frames)");

  1437.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1438. 

  1439.         i++;

  1440.         strcpy(desc->params[i].name, "output-latency");

  1441.         desc->params[i].character = 'O';

  1442.         desc->params[i].type = JackDriverParamUInt;

  1443.         desc->params[i].value.i = 0;

  1444.         strcpy(desc->params[i].short_desc, "Extra output latency (frames)");

  1445.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1446. 

  1447.         i++;

  1448.         strcpy(desc->params[i].name, "list-devices");

  1449.         desc->params[i].character = 'l';

  1450.         desc->params[i].type = JackDriverParamBool;

  1451.         desc->params[i].value.i = TRUE;

  1452.         strcpy(desc->params[i].short_desc, "Display available CoreAudio devices");

  1453.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1454.         

  1455.         i++;

  1456.         strcpy(desc->params[i].name, "async-latency");

  1457.         desc->params[i].character = 'L';

  1458.         desc->params[i].type = JackDriverParamUInt;

  1459.         desc->params[i].value.i = 100;

  1460.         strcpy(desc->params[i].short_desc, "Extra output latency in aynchronous mode (percent)");

  1461.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1462.         

  1463.         i++;

  1464.         strcpy(desc->params[i].name, "grain");

  1465.         desc->params[i].character = 'G';

  1466.         desc->params[i].type = JackDriverParamUInt;

  1467.         desc->params[i].value.i = 100;

  1468.         strcpy(desc->params[i].short_desc, "Computation grain in RT thread (percent)");

  1469.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1470. 

  1471.         return desc;

  1472.     }

  1473. 

  1474.     SERVER_EXPORT Jack::JackDriverClientInterface* driver_initialize(Jack::JackLockedEngine* engine, Jack::JackSynchro* table, const JSList* params) 

  1475.     {

  1476.         jack_nframes_t srate = 44100;

  1477.         jack_nframes_t frames_per_interrupt = 128;

  1478.         int capture = FALSE;

  1479.         int playback = FALSE;

  1480.         int chan_in = 0;

  1481.         int chan_out = 0;

  1482.         bool monitor = false;

  1483.         const char* capture_driver_uid = "";

  1484.         const char* playback_driver_uid = "";

  1485.         const JSList *node;

  1486.         const jack_driver_param_t *param;

  1487.         jack_nframes_t systemic_input_latency = 0;

  1488.         jack_nframes_t systemic_output_latency = 0;

  1489.         int async_output_latency = 100;

  1490.         int computation_grain = -1;

  1491.     

  1492.         for (node = params; node; node = jack_slist_next(node)) {

  1493.             param = (const jack_driver_param_t *) node->data;

  1494.        

  1495.             switch (param->character) {

  1496. 

  1497.                 case 'd':

  1498.                     capture_driver_uid = strdup(param->value.str);

  1499.                     playback_driver_uid = strdup(param->value.str);

  1500.                     break;

  1501. 

  1502.                 case 'D':

  1503.                     capture = TRUE;

  1504.                     playback = TRUE;

  1505.                     break;

  1506. 

  1507.                 case 'c':

  1508.                     chan_in = chan_out = (int) param->value.ui;

  1509.                     break;

  1510. 

  1511.                 case 'i':

  1512.                     chan_in = (int) param->value.ui;

  1513.                     break;

  1514. 

  1515.                 case 'o':

  1516.                     chan_out = (int) param->value.ui;

  1517.                     break;

  1518. 

  1519.                 case 'C':

  1520.                     capture = TRUE;

  1521.                     if (strcmp(param->value.str, "none") != 0) {

  1522.                         capture_driver_uid = strdup(param->value.str);

  1523.                     }

  1524.                     break;

  1525. 

  1526.                 case 'P':

  1527.                     playback = TRUE;

  1528.                     if (strcmp(param->value.str, "none") != 0) {

  1529.                         playback_driver_uid = strdup(param->value.str);

  1530.                     }

  1531.                     break;

  1532. 

  1533.                 case 'm':

  1534.                     monitor = param->value.i;

  1535.                     break;

  1536. 

  1537.                 case 'r':

  1538.                     srate = param->value.ui;

  1539.                     break;

  1540. 

  1541.                 case 'p':

  1542.                     frames_per_interrupt = (unsigned int) param->value.ui;

  1543.                     break;

  1544. 

  1545.                 case 'I':

  1546.                     systemic_input_latency = param->value.ui;

  1547.                     break;

  1548. 

  1549.                 case 'O':

  1550.                     systemic_output_latency = param->value.ui;

  1551.                     break;

  1552. 

  1553.                 case 'l':

  1554.                     Jack::DisplayDeviceNames();

  1555.                     break;

  1556.                     

  1557.                 case 'L':

  1558.                     async_output_latency = param->value.ui;

  1559.                     break;

  1560.                     

  1561.                 case 'G':

  1562.                     computation_grain = param->value.ui;

  1563.                     break;

  1564.             }

  1565.         }

  1566. 

  1567.         /* duplex is the default */

  1568.         if (!capture && !playback) {

  1569.             capture = TRUE;

  1570.             playback = TRUE;

  1571.         }

  1572. 

  1573.         Jack::JackCoreAudioDriver* driver = new Jack::JackCoreAudioDriver("system", "coreaudio", engine, table);

  1574.         if (driver->Open(frames_per_interrupt, srate, capture, playback, chan_in, chan_out, monitor, capture_driver_uid, 

  1575.             playback_driver_uid, systemic_input_latency, systemic_output_latency, async_output_latency, computation_grain) == 0) {

  1576.             return driver;

  1577.         } else {

  1578.             delete driver;

  1579.             return NULL;

  1580.         }

  1581.     }

  1582. 

  1583. #ifdef __cplusplus

  1584. }

  1585. #endif

  1586.