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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 output 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), 

  394.         fJackInputData(NULL), 

  395.         fDriverOutputData(NULL), 

  396.         fPluginID(0), 

  397.         fState(false), 

  398.         fHogged(false),

  399.         fIOUsage(1.f),

  400.         fComputationGrain(-1.f)

  401. {}

  402. 

  403. JackCoreAudioDriver::~JackCoreAudioDriver()

  404. {}

  405. 

  406. OSStatus JackCoreAudioDriver::DestroyAggregateDevice() 

  407. {

  408.     OSStatus osErr = noErr;

  409.     AudioObjectPropertyAddress pluginAOPA;

  410.     pluginAOPA.mSelector = kAudioPlugInDestroyAggregateDevice;

  411.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  412.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  413.     UInt32 outDataSize;

  414.   

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

  416.     if (osErr != noErr) {

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

  418.         printError(osErr);

  419.         return osErr;

  420.     }

  421.         

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

  423.     if (osErr != noErr) {

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

  425.         printError(osErr);

  426.         return osErr;

  427.     }

  428.     

  429.     return noErr;

  430. }

  431. 

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

  433. {

  434.     OSStatus osErr = noErr;

  435.     UInt32 outSize;

  436.     Boolean outWritable;

  437. 

  438.     //---------------------------------------------------------------------------

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

  440.     //---------------------------------------------------------------------------

  441.     

  442.     char capture_name[256];

  443.     char playback_name[256];

  444.     GetDeviceNameFromID(captureDeviceID, capture_name);

  445.     GetDeviceNameFromID(playbackDeviceID, playback_name);

  446.     jack_info("Separated input = '%s' and output = '%s' devices, create a private aggregate device to handle them...", capture_name, playback_name);

  447.  

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

  449.     if (osErr != noErr) {

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

  451.         printError(osErr);

  452.         return osErr;

  453.     }

  454. 

  455.     AudioValueTranslation pluginAVT;

  456. 

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

  458.    

  459.     pluginAVT.mInputData = &inBundleRef;

  460.     pluginAVT.mInputDataSize = sizeof(inBundleRef);

  461.     pluginAVT.mOutputData = &fPluginID;

  462.     pluginAVT.mOutputDataSize = sizeof(fPluginID);

  463. 

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

  465.     if (osErr != noErr) {

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

  467.         printError(osErr);

  468.         return osErr;

  469.     }

  470. 

  471.     //-------------------------------------------------

  472.     // Create a CFDictionary for our aggregate device

  473.     //-------------------------------------------------

  474. 

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

  476. 

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

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

  479.     

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

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

  482. 

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

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

  485.     

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

  487.     int value = 1;

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

  489.     

  490.     SInt32 system;

  491.     Gestalt(gestaltSystemVersion, &system);

  492.      

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

  494.     

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

  496.     if (system < 0x00001054) {

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

  498.     } else {

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

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

  501.     }

  502.   

  503.     //-------------------------------------------------

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

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

  506.     

  507.     CFStringRef captureDeviceUID = GetDeviceName(captureDeviceID);

  508.     CFStringRef playbackDeviceUID = GetDeviceName(playbackDeviceID);

  509.     

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

  511.         return -1;

  512.   

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

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

  515. 

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

  517.     CFArrayAppendValue(subDevicesArray, captureDeviceUID);

  518.     CFArrayAppendValue(subDevicesArray, playbackDeviceUID);

  519. 

  520.     //-----------------------------------------------------------------------

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

  522.     //-----------------------------------------------------------------------

  523.  

  524.     AudioObjectPropertyAddress pluginAOPA;

  525.     pluginAOPA.mSelector = kAudioPlugInCreateAggregateDevice;

  526.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  527.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  528.     UInt32 outDataSize;

  529. 

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

  531.     if (osErr != noErr) {

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

  533.         printError(osErr);

  534.         return osErr;

  535.     }

  536.     

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

  538.     if (osErr != noErr) {

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

  540.         printError(osErr);

  541.         return osErr;

  542.     }

  543. 

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

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

  546.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  547. 

  548.     //-------------------------

  549.     // Set the sub-device list

  550.     //-------------------------

  551. 

  552.     pluginAOPA.mSelector = kAudioAggregateDevicePropertyFullSubDeviceList;

  553.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  554.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  555.     outDataSize = sizeof(CFMutableArrayRef);

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

  557.     if (osErr != noErr) {

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

  559.         printError(osErr);

  560.         return osErr;

  561.     }

  562.     

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

  564.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  565. 

  566.     //-----------------------

  567.     // Set the master device

  568.     //-----------------------

  569. 

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

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

  572.     pluginAOPA.mSelector = kAudioAggregateDevicePropertyMasterSubDevice;

  573.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  574.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  575.     outDataSize = sizeof(CFStringRef);

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

  577.     if (osErr != noErr) {

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

  579.         printError(osErr);

  580.         return osErr;

  581.     }

  582.     

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

  584.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  585. 

  586.     //----------

  587.     // Clean up

  588.     //----------

  589.     

  590.     // release the private AD key

  591.     CFRelease(AggregateDeviceNumberRef);

  592. 

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

  594.     CFRelease(aggDeviceDict);

  595.     CFRelease(subDevicesArray);

  596. 

  597.     // release the device UID

  598.     CFRelease(captureDeviceUID);

  599.     CFRelease(playbackDeviceUID);

  600.     

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

  602.     return noErr;

  603. }

  604. 

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

  606. {

  607.     capture_driver_name[0] = 0;

  608.     playback_driver_name[0] = 0;

  609. 

  610.     // Duplex

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

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

  613.           

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

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

  616.             

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

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

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

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

  621.                     return -1;

  622.                 }

  623.             }

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

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

  626.                 return -1;

  627.             }

  628.             

  629.         } else {

  630.         

  631.             // Creates aggregate device

  632.             AudioDeviceID captureID, playbackID;

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

  634.                 return -1;

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

  636.                 return -1;

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

  638.                 return -1;

  639.         }

  640. 

  641.     // Capture only

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

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

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

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

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

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

  648.                 return -1;

  649.             }

  650.         }

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

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

  653.             return -1;

  654.         }

  655. 

  656.     // Playback only

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

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

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

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

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

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

  663.                 return -1;

  664.             }

  665.         }

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

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

  668.             return -1;

  669.         }

  670. 

  671.     // Use default driver in duplex mode

  672.     } else {

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

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

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

  676.             return -1;

  677.         }

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

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

  680.             return -1;

  681.         }

  682.     }

  683.     

  684.     if (fHogged) {

  685.         if (TakeHog()) {

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

  687.         } else {

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

  689.         }

  690.     }

  691. 

  692.     return 0;

  693. }

  694. 

  695. /*

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

  697. */

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

  699. {

  700.     OSStatus err = noErr;

  701. 

  702.     if (capturing) {

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

  704.         if (err != noErr) {

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

  706.             printError(err);

  707.             return -1;

  708.         } else {

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

  710.         }

  711.     }

  712. 

  713.     if (playing) {

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

  715.         if (err != noErr) {

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

  717.             printError(err);

  718.             return -1;

  719.         } else {

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

  721.         }

  722.     }

  723. 

  724.     if (inchannels > in_nChannels) {

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

  726.         if (strict)

  727.             return -1;

  728.     }

  729. 

  730.     if (outchannels > out_nChannels) {

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

  732.         if (strict)

  733.             return -1;

  734.     }

  735. 

  736.     if (inchannels == 0) {

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

  738.         inchannels = in_nChannels;

  739.     }

  740. 

  741.     if (outchannels == 0) {

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

  743.         outchannels = out_nChannels;

  744.     }

  745. 

  746.     return 0;

  747. }

  748. 

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

  750. {

  751.     OSStatus err = noErr;

  752.     UInt32 outSize;

  753.     Float64 sampleRate;

  754. 

  755.     // Setting buffer size

  756.     outSize = sizeof(UInt32);

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

  758.     if (err != noErr) {

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

  760.         printError(err);

  761.         return -1;

  762.     }

  763. 

  764.     // Get sample rate

  765.     outSize =  sizeof(Float64);

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

  767.     if (err != noErr) {

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

  769.         printError(err);

  770.         return -1;

  771.     }

  772. 

  773.     // If needed, set new sample rate

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

  775.         sampleRate = (Float64)samplerate;

  776. 

  777.         // To get SR change notification

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

  779.         if (err != noErr) {

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

  781.             printError(err);

  782.             return -1;

  783.         }

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

  785.         if (err != noErr) {

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

  787.             printError(err);

  788.             return -1;

  789.         }

  790. 

  791.         // Waiting for SR change notification

  792.         int count = 0;

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

  794.             usleep(100000);

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

  796.         }

  797. 

  798.         // Remove SR change notification

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

  800.     }

  801. 

  802.     return 0;

  803. }

  804. 

  805. int JackCoreAudioDriver::OpenAUHAL(bool capturing,

  806.                                    bool playing,

  807.                                    int inchannels,

  808.                                    int outchannels,

  809.                                    int in_nChannels,

  810.                                    int out_nChannels,

  811.                                    jack_nframes_t buffer_size,

  812.                                    jack_nframes_t samplerate,

  813.                                    bool strict)

  814. {

  815.     ComponentResult err1;

  816.     UInt32 enableIO;

  817.     AudioStreamBasicDescription srcFormat, dstFormat;

  818. 

  819.     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);

  820. 

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

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

  823.         return -1;

  824.     }

  825.          

  826.     // AUHAL

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

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

  829. 

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

  831.     if (err1 != noErr) {

  832.         jack_error("Error calling OpenAComponent");

  833.         printError(err1);

  834.         return -1;

  835.     }

  836. 

  837.     err1 = AudioUnitInitialize(fAUHAL);

  838.     if (err1 != noErr) {

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

  840.         printError(err1);

  841.         return -1;

  842.     }

  843. 

  844.     // Start I/O

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

  846.         enableIO = 1;

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

  848.     } else {

  849.         enableIO = 0;

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

  851.     }

  852.     

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

  854.     if (err1 != noErr) {

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

  856.         printError(err1);

  857.         if (strict)

  858.             return -1;

  859.     }

  860. 

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

  862.         enableIO = 1;

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

  864.     } else {

  865.         enableIO = 0;

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

  867.     }

  868.     

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

  870.     if (err1 != noErr) {

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

  872.         printError(err1);

  873.         if (strict)

  874.             return -1;

  875.     }

  876.     

  877.     AudioDeviceID currAudioDeviceID;

  878.     UInt32 size = sizeof(AudioDeviceID);

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

  880.     if (err1 != noErr) {

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

  882.         printError(err1);

  883.         if (strict)

  884.             return -1;

  885.     } else {

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

  887.     }

  888. 

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

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

  891.     if (err1 != noErr) {

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

  893.         printError(err1);

  894.         if (strict)

  895.             return -1;

  896.     }

  897.   

  898.     // Set buffer size

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

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

  901.         if (err1 != noErr) {

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

  903.             printError(err1);

  904.             if (strict)

  905.                 return -1;

  906.         }

  907.     }

  908. 

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

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

  911.         if (err1 != noErr) {

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

  913.             printError(err1);

  914.             if (strict)

  915.                 return -1;

  916.         }

  917.     }

  918. 

  919.     // Setup channel map

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

  921.         SInt32 chanArr[in_nChannels];

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

  923.             chanArr[i] = -1;

  924.         }

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

  926.             chanArr[i] = i;

  927.         }

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

  929.         if (err1 != noErr) {

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

  931.             printError(err1);

  932.         }

  933.     }

  934. 

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

  936.         SInt32 chanArr[out_nChannels];

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

  938.             chanArr[i] = -1;

  939.         }

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

  941.             chanArr[i] = i;

  942.         }

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

  944.         if (err1 != noErr) {

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

  946.             printError(err1);

  947.         }

  948.     }

  949. 

  950.     // Setup stream converters

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

  952.     srcFormat.mSampleRate = samplerate;

  953.     srcFormat.mFormatID = kAudioFormatLinearPCM;

  954.     srcFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;

  955.     srcFormat.mBytesPerPacket = sizeof(float);

  956.     srcFormat.mFramesPerPacket = 1;

  957.     srcFormat.mBytesPerFrame = sizeof(float);

  958.     srcFormat.mChannelsPerFrame = outchannels;

  959.     srcFormat.mBitsPerChannel = 32;

  960. 

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

  962.     if (err1 != noErr) {

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

  964.         printError(err1);

  965.     }

  966. 

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

  968.     dstFormat.mSampleRate = samplerate;

  969.     dstFormat.mFormatID = kAudioFormatLinearPCM;

  970.     dstFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;

  971.     dstFormat.mBytesPerPacket = sizeof(float);

  972.     dstFormat.mFramesPerPacket = 1;

  973.     dstFormat.mBytesPerFrame = sizeof(float);

  974.     dstFormat.mChannelsPerFrame = inchannels;

  975.     dstFormat.mBitsPerChannel = 32;

  976. 

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

  978.     if (err1 != noErr) {

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

  980.         printError(err1);

  981.     }

  982. 

  983.     // Setup callbacks

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

  985.         AURenderCallbackStruct output;

  986.         output.inputProc = Render;

  987.         output.inputProcRefCon = this;

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

  989.         if (err1 != noErr) {

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

  991.             printError(err1);

  992.             return -1;

  993.         }

  994.     } else {

  995.         AURenderCallbackStruct output;

  996.         output.inputProc = Render;

  997.         output.inputProcRefCon = this;

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

  999.         if (err1 != noErr) {

  1000.             jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_SetRenderCallback 0");

  1001.             printError(err1);

  1002.             return -1;

  1003.         }

  1004.     }

  1005. 

  1006.     return 0;

  1007. }

  1008. 

  1009. int JackCoreAudioDriver::SetupBuffers(int inchannels)

  1010. {

  1011.     // Prepare buffers

  1012.     fJackInputData = (AudioBufferList*)malloc(sizeof(UInt32) + inchannels * sizeof(AudioBuffer));

  1013.     if (fJackInputData == 0) {

  1014.         jack_error("Cannot allocate memory for input buffers");

  1015.         return -1;

  1016.     }

  1017.     fJackInputData->mNumberBuffers = inchannels;

  1018.     for (int i = 0; i < fCaptureChannels; i++) {

  1019.         fJackInputData->mBuffers[i].mNumberChannels = 1;

  1020.         fJackInputData->mBuffers[i].mDataByteSize = fEngineControl->fBufferSize * sizeof(float);

  1021.     }

  1022.     return 0;

  1023. }

  1024. 

  1025. void JackCoreAudioDriver::DisposeBuffers()

  1026. {

  1027.     if (fJackInputData) {

  1028.         free(fJackInputData);

  1029.         fJackInputData = 0;

  1030.     }

  1031. }

  1032. 

  1033. void JackCoreAudioDriver::CloseAUHAL()

  1034. {

  1035.     AudioUnitUninitialize(fAUHAL);

  1036.     CloseComponent(fAUHAL);

  1037. }

  1038. 

  1039. int JackCoreAudioDriver::AddListeners()

  1040. {

  1041.     OSStatus err = noErr;

  1042. 

  1043.     // Add listeners

  1044.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDeviceProcessorOverload, DeviceNotificationCallback, this);

  1045.     if (err != noErr) {

  1046.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDeviceProcessorOverload");

  1047.         printError(err);

  1048.         return -1;

  1049.     }

  1050. 

  1051.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioHardwarePropertyDevices, DeviceNotificationCallback, this);

  1052.     if (err != noErr) {

  1053.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioHardwarePropertyDevices");

  1054.         printError(err);

  1055.         return -1;

  1056.     }

  1057. 

  1058.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, DeviceNotificationCallback, this);

  1059.     if (err != noErr) {

  1060.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyNominalSampleRate");

  1061.         printError(err);

  1062.         return -1;

  1063.     }

  1064. 

  1065.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyDeviceIsRunning, DeviceNotificationCallback, this);

  1066.     if (err != noErr) {

  1067.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyDeviceIsRunning");

  1068.         printError(err);

  1069.         return -1;

  1070.     }

  1071. 

  1072.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback, this);

  1073.     if (err != noErr) {

  1074.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyStreamConfiguration");

  1075.         printError(err);

  1076.         return -1;

  1077.     }

  1078. 

  1079.     err = AudioDeviceAddPropertyListener(fDeviceID, 0, false, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback, this);

  1080.     if (err != noErr) {

  1081.         jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyStreamConfiguration");

  1082.         printError(err);

  1083.         return -1;

  1084.     }

  1085. 

  1086.     if (!fEngineControl->fSyncMode && fIOUsage != 1.f) {

  1087.         UInt32 outSize = sizeof(float);

  1088.         err = AudioDeviceSetProperty(fDeviceID, NULL, 0, false, kAudioDevicePropertyIOCycleUsage, outSize, &fIOUsage);

  1089.         if (err != noErr) {

  1090.             jack_error("Error calling AudioDeviceSetProperty kAudioDevicePropertyIOCycleUsage");

  1091.             printError(err);

  1092.         }

  1093.     }

  1094. 

  1095.     return 0;

  1096. }

  1097. 

  1098. void JackCoreAudioDriver::RemoveListeners()

  1099. {

  1100.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDeviceProcessorOverload, DeviceNotificationCallback);

  1101.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioHardwarePropertyDevices, DeviceNotificationCallback);

  1102.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, DeviceNotificationCallback);

  1103.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyDeviceIsRunning, DeviceNotificationCallback);

  1104.     AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback);

  1105.     AudioDeviceRemovePropertyListener(fDeviceID, 0, false, kAudioDevicePropertyStreamConfiguration, DeviceNotificationCallback);

  1106. }

  1107. 

  1108. int JackCoreAudioDriver::Open(jack_nframes_t buffer_size,

  1109.                               jack_nframes_t samplerate,

  1110.                               bool capturing,

  1111.                               bool playing,

  1112.                               int inchannels,

  1113.                               int outchannels,

  1114.                               bool monitor,

  1115.                               const char* capture_driver_uid,

  1116.                               const char* playback_driver_uid,

  1117.                               jack_nframes_t capture_latency,

  1118.                               jack_nframes_t playback_latency,

  1119.                               int async_output_latency,

  1120.                               int computation_grain,

  1121.                               bool hogged)

  1122. {

  1123.     int in_nChannels = 0;

  1124.     int out_nChannels = 0;

  1125.     char capture_driver_name[256];

  1126.     char playback_driver_name[256];

  1127. 

  1128.     // Keep initial state

  1129.     fCapturing = capturing;

  1130.     fPlaying = playing;

  1131.     fInChannels = inchannels;

  1132.     fOutChannels = outchannels;

  1133.     fMonitor = monitor;

  1134.     strcpy(fCaptureUID, capture_driver_uid);

  1135.     strcpy(fPlaybackUID, playback_driver_uid);

  1136.     fCaptureLatency = capture_latency;

  1137.     fPlaybackLatency = playback_latency;

  1138.     fIOUsage = float(async_output_latency) / 100.f;

  1139.     fComputationGrain = float(computation_grain) / 100.f;

  1140.     fHogged = hogged;

  1141.     

  1142.     SInt32 major;

  1143.     SInt32 minor;

  1144.     Gestalt(gestaltSystemVersionMajor, &major);

  1145.     Gestalt(gestaltSystemVersionMinor, &minor);

  1146.     

  1147.     // Starting with 10.6 systems, the HAL notification thread is created internally

  1148.     if (major == 10 && minor >= 6) {

  1149.         CFRunLoopRef theRunLoop = NULL;

  1150.         AudioObjectPropertyAddress theAddress = { kAudioHardwarePropertyRunLoop, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };

  1151.         OSStatus theError = AudioObjectSetPropertyData (kAudioObjectSystemObject, &theAddress, 0, NULL, sizeof(CFRunLoopRef), &theRunLoop);

  1152.         if (theError != noErr) {

  1153.             jack_error("JackCoreAudioDriver::Open kAudioHardwarePropertyRunLoop error");

  1154.         }

  1155.     }

  1156. 

  1157.     if (SetupDevices(capture_driver_uid, playback_driver_uid, capture_driver_name, playback_driver_name) < 0)

  1158.         return -1;

  1159. 

  1160.     // Generic JackAudioDriver Open

  1161.     if (JackAudioDriver::Open(buffer_size, samplerate, capturing, playing, inchannels, outchannels, monitor, capture_driver_name, playback_driver_name, capture_latency, playback_latency) != 0)

  1162.         return -1;

  1163. 

  1164.     if (SetupChannels(capturing, playing, inchannels, outchannels, in_nChannels, out_nChannels, true) < 0)

  1165.         return -1;

  1166. 

  1167.     if (SetupBufferSizeAndSampleRate(buffer_size, samplerate)  < 0)

  1168.         return -1;

  1169.  

  1170.     if (OpenAUHAL(capturing, playing, inchannels, outchannels, in_nChannels, out_nChannels, buffer_size, samplerate, true) < 0)

  1171.         goto error;

  1172. 

  1173.     if (capturing && inchannels > 0)

  1174.         if (SetupBuffers(inchannels) < 0)

  1175.             goto error;

  1176. 

  1177.     if (AddListeners() < 0)

  1178.         goto error;

  1179. 

  1180.     // Core driver may have changed the in/out values

  1181.     fCaptureChannels = inchannels;

  1182.     fPlaybackChannels = outchannels;

  1183.     return noErr;

  1184. 

  1185. error:

  1186.     Close();

  1187.     return -1;

  1188. }

  1189. 

  1190. int JackCoreAudioDriver::Close()

  1191. {

  1192.     jack_log("JackCoreAudioDriver::Close");

  1193.     Stop();

  1194.     JackAudioDriver::Close();

  1195.     RemoveListeners();

  1196.     DisposeBuffers();

  1197.     CloseAUHAL();

  1198.     if (fPluginID > 0)

  1199.         DestroyAggregateDevice();

  1200.     return 0;

  1201. }

  1202. 

  1203. int JackCoreAudioDriver::Attach()

  1204. {

  1205.     OSStatus err;

  1206.     JackPort* port;

  1207.     jack_port_id_t port_index;

  1208.     UInt32 size;

  1209.     Boolean isWritable;

  1210.     char channel_name[64];

  1211.     char name[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];

  1212.     char alias[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];

  1213.     unsigned long port_flags = JackPortIsOutput | JackPortIsPhysical | JackPortIsTerminal;

  1214. 

  1215.     jack_log("JackCoreAudioDriver::Attach fBufferSize %ld fSampleRate %ld", fEngineControl->fBufferSize, fEngineControl->fSampleRate);

  1216. 

  1217.     for (int i = 0; i < fCaptureChannels; i++) {

  1218. 

  1219.         err = AudioDeviceGetPropertyInfo(fDeviceID, i + 1, true, kAudioDevicePropertyChannelName, &size, &isWritable);

  1220.         if (err != noErr)

  1221.             jack_log("AudioDeviceGetPropertyInfo kAudioDevicePropertyChannelName error ");

  1222.         if (err == noErr && size > 0) {

  1223.             err = AudioDeviceGetProperty(fDeviceID, i + 1, true, kAudioDevicePropertyChannelName, &size, channel_name);

  1224.             if (err != noErr)

  1225.                 jack_log("AudioDeviceGetProperty kAudioDevicePropertyChannelName error ");

  1226.             snprintf(alias, sizeof(alias) - 1, "%s:%s:out_%s%u", fAliasName, fCaptureDriverName, channel_name, i + 1);

  1227.         } else {

  1228.             snprintf(alias, sizeof(alias) - 1, "%s:%s:out%u", fAliasName, fCaptureDriverName, i + 1);

  1229.         }

  1230. 

  1231.         snprintf(name, sizeof(name) - 1, "%s:capture_%d", fClientControl.fName, i + 1);

  1232. 

  1233.         if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize)) == NO_PORT) {

  1234.             jack_error("Cannot register port for %s", name);

  1235.             return -1;

  1236.         }

  1237. 

  1238.         size = sizeof(UInt32);

  1239.         UInt32 value1 = 0;

  1240.         UInt32 value2 = 0;

  1241.         err = AudioDeviceGetProperty(fDeviceID, 0, true, kAudioDevicePropertyLatency, &size, &value1);

  1242.         if (err != noErr)

  1243.             jack_log("AudioDeviceGetProperty kAudioDevicePropertyLatency error ");

  1244.         err = AudioDeviceGetProperty(fDeviceID, 0, true, kAudioDevicePropertySafetyOffset, &size, &value2);

  1245.         if (err != noErr)

  1246.             jack_log("AudioDeviceGetProperty kAudioDevicePropertySafetyOffset error ");

  1247. 

  1248.         port = fGraphManager->GetPort(port_index);

  1249.         port->SetAlias(alias);

  1250.         port->SetLatency(fEngineControl->fBufferSize + value1 + value2 + fCaptureLatency);

  1251.         fCapturePortList[i] = port_index;

  1252.     }

  1253. 

  1254.     port_flags = JackPortIsInput | JackPortIsPhysical | JackPortIsTerminal;

  1255. 

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

  1257. 

  1258.         err = AudioDeviceGetPropertyInfo(fDeviceID, i + 1, false, kAudioDevicePropertyChannelName, &size, &isWritable);

  1259.         if (err != noErr)

  1260.             jack_log("AudioDeviceGetPropertyInfo kAudioDevicePropertyChannelName error ");

  1261.         if (err == noErr && size > 0) {

  1262.             err = AudioDeviceGetProperty(fDeviceID, i + 1, false, kAudioDevicePropertyChannelName, &size, channel_name);

  1263.             if (err != noErr)

  1264.                 jack_log("AudioDeviceGetProperty kAudioDevicePropertyChannelName error ");

  1265.             snprintf(alias, sizeof(alias) - 1, "%s:%s:in_%s%u", fAliasName, fPlaybackDriverName, channel_name, i + 1);

  1266.         } else {

  1267.             snprintf(alias, sizeof(alias) - 1, "%s:%s:in%u", fAliasName, fPlaybackDriverName, i + 1);

  1268.         }

  1269. 

  1270.         snprintf(name, sizeof(name) - 1, "%s:playback_%d", fClientControl.fName, i + 1);

  1271. 

  1272.         if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize)) == NO_PORT) {

  1273.             jack_error("Cannot register port for %s", name);

  1274.             return -1;

  1275.         }

  1276. 

  1277.         size = sizeof(UInt32);

  1278.         UInt32 value1 = 0;

  1279.         UInt32 value2 = 0;

  1280.         err = AudioDeviceGetProperty(fDeviceID, 0, false, kAudioDevicePropertyLatency, &size, &value1);

  1281.         if (err != noErr)

  1282.             jack_log("AudioDeviceGetProperty kAudioDevicePropertyLatency error ");

  1283.         err = AudioDeviceGetProperty(fDeviceID, 0, false, kAudioDevicePropertySafetyOffset, &size, &value2);

  1284.         if (err != noErr)

  1285.             jack_log("AudioDeviceGetProperty kAudioDevicePropertySafetyOffset error ");

  1286. 

  1287.         port = fGraphManager->GetPort(port_index);

  1288.         port->SetAlias(alias);

  1289.         // Add more latency if "async" mode is used...

  1290.         port->SetLatency(fEngineControl->fBufferSize + ((fEngineControl->fSyncMode) ? 0 : fEngineControl->fBufferSize * fIOUsage) + value1 + value2 + fPlaybackLatency);

  1291.         fPlaybackPortList[i] = port_index;

  1292. 

  1293.         // Monitor ports

  1294.         if (fWithMonitorPorts) {

  1295.             jack_log("Create monitor port ");

  1296.             snprintf(name, sizeof(name) - 1, "%s:monitor_%u", fClientControl.fName, i + 1);

  1297.             if ((port_index = fGraphManager->AllocatePort(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, fEngineControl->fBufferSize)) == NO_PORT) {

  1298.                 jack_error("Cannot register monitor port for %s", name);

  1299.                 return -1;

  1300.             } else {

  1301.                 port = fGraphManager->GetPort(port_index);

  1302.                 port->SetAlias(alias);

  1303.                 port->SetLatency(fEngineControl->fBufferSize);

  1304.                 fMonitorPortList[i] = port_index;

  1305.             }

  1306.         }

  1307.     }

  1308. 

  1309.     // Input buffers do no change : prepare them only once

  1310.     for (int i = 0; i < fCaptureChannels; i++) {

  1311.         fJackInputData->mBuffers[i].mData = GetInputBuffer(i);

  1312.     }

  1313. 

  1314.     return 0;

  1315. }

  1316. 

  1317. int JackCoreAudioDriver::Start()

  1318. {

  1319.     jack_log("JackCoreAudioDriver::Start");

  1320.     JackAudioDriver::Start();

  1321. /*

  1322. #ifdef MAC_OS_X_VERSION_10_5

  1323.     OSStatus err = AudioDeviceCreateIOProcID(fDeviceID, MeasureCallback, this, &fMesureCallbackID);

  1324. #else

  1325.     OSStatus err = AudioDeviceAddIOProc(fDeviceID, MeasureCallback, this);

  1326. #endif

  1327. */

  1328.     OSStatus err = AudioDeviceAddIOProc(fDeviceID, MeasureCallback, this);

  1329.     

  1330.     if (err != noErr)

  1331.         return -1;

  1332. 

  1333.     err = AudioOutputUnitStart(fAUHAL);

  1334.     if (err != noErr)

  1335.         return -1;

  1336. 

  1337.     if ((err = AudioDeviceStart(fDeviceID, MeasureCallback)) != noErr) {

  1338.         jack_error("Cannot start MeasureCallback");

  1339.         printError(err);

  1340.         return -1;

  1341.     }

  1342. 

  1343.     return 0;

  1344. }

  1345. 

  1346. int JackCoreAudioDriver::Stop()

  1347. {

  1348.     jack_log("JackCoreAudioDriver::Stop");

  1349.     AudioDeviceStop(fDeviceID, MeasureCallback);

  1350. /*

  1351. #ifdef MAC_OS_X_VERSION_10_5

  1352.     AudioDeviceDestroyIOProcID(fDeviceID, fMesureCallbackID);

  1353. #else

  1354.     AudioDeviceRemoveIOProc(fDeviceID, MeasureCallback);

  1355. #endif

  1356. */

  1357.     AudioDeviceRemoveIOProc(fDeviceID, MeasureCallback);

  1358.     return (AudioOutputUnitStop(fAUHAL) == noErr) ? 0 : -1;

  1359. }

  1360. 

  1361. int JackCoreAudioDriver::SetBufferSize(jack_nframes_t buffer_size)

  1362. {

  1363.     OSStatus err;

  1364.     UInt32 outSize = sizeof(UInt32);

  1365. 

  1366.     err = AudioDeviceSetProperty(fDeviceID, NULL, 0, false, kAudioDevicePropertyBufferFrameSize, outSize, &buffer_size);

  1367.     if (err != noErr) {

  1368.         jack_error("Cannot set buffer size %ld", buffer_size);

  1369.         printError(err);

  1370.         return -1;

  1371.     }

  1372. 

  1373.     JackAudioDriver::SetBufferSize(buffer_size); // never fails

  1374. 

  1375.     // Input buffers do no change : prepare them only once

  1376.     for (int i = 0; i < fCaptureChannels; i++) {

  1377.         fJackInputData->mBuffers[i].mNumberChannels = 1;

  1378.         fJackInputData->mBuffers[i].mDataByteSize = fEngineControl->fBufferSize * sizeof(float);

  1379.         fJackInputData->mBuffers[i].mData = GetInputBuffer(i);

  1380.     }

  1381. 

  1382.     return 0;

  1383. }

  1384. 

  1385. bool JackCoreAudioDriver::TakeHogAux(AudioDeviceID deviceID, bool isInput)

  1386. {

  1387.     pid_t hog_pid;

  1388.     OSStatus err;

  1389. 

  1390.     UInt32 propSize = sizeof(hog_pid);

  1391.     err = AudioDeviceGetProperty(deviceID, 0, isInput, kAudioDevicePropertyHogMode, &propSize, &hog_pid);

  1392.     if (err) {

  1393.         jack_error("Cannot read hog state...");

  1394.         printError(err);

  1395.     }

  1396. 

  1397.     if (hog_pid != getpid()) {

  1398.         hog_pid = getpid();

  1399.         err = AudioDeviceSetProperty(deviceID, 0, 0, isInput, kAudioDevicePropertyHogMode, propSize, &hog_pid);

  1400.         if (err != noErr) {

  1401.             jack_error("Can't hog device = %d because it's being hogged by another program", deviceID);

  1402.             return false;

  1403.         }

  1404.     }

  1405.     

  1406.     return true;

  1407. }

  1408.     

  1409. bool JackCoreAudioDriver::TakeHog()

  1410. {

  1411.     OSStatus err = noErr;

  1412.     AudioObjectID sub_device[32];

  1413.     UInt32 outSize = sizeof(sub_device);

  1414.     err = AudioDeviceGetProperty(fDeviceID, 0, kAudioDeviceSectionGlobal, kAudioAggregateDevicePropertyActiveSubDeviceList, &outSize, sub_device);

  1415.     

  1416.     if (err != noErr) {

  1417.         jack_log("Device does not have subdevices");

  1418.         return TakeHogAux(fDeviceID, true);

  1419.     } else {

  1420.         int num_devices = outSize / sizeof(AudioObjectID);

  1421.         jack_log("Device does has %d subdevices", num_devices);

  1422.         for (int i = 0; i < num_devices; i++) {

  1423.             if (!TakeHogAux(sub_device[i], true)) {

  1424.                 return false;

  1425.             }

  1426.         }

  1427.         return true;

  1428.     }

  1429. }

  1430.     

  1431. 

  1432. } // end of namespace

  1433. 

  1434. 

  1435. #ifdef __cplusplus

  1436. extern "C"

  1437. {

  1438. #endif

  1439. 

  1440.     SERVER_EXPORT jack_driver_desc_t* driver_get_descriptor() 

  1441.     {

  1442.         jack_driver_desc_t *desc;

  1443.         unsigned int i;

  1444.         desc = (jack_driver_desc_t*)calloc(1, sizeof(jack_driver_desc_t));

  1445. 

  1446.         strcpy(desc->name, "coreaudio");                                    // size MUST be less then JACK_DRIVER_NAME_MAX + 1

  1447.         strcpy(desc->desc, "Apple CoreAudio API based audio backend");      // size MUST be less then JACK_DRIVER_PARAM_DESC + 1

  1448.         

  1449.         desc->nparams = 16;

  1450.         desc->params = (jack_driver_param_desc_t*)calloc(desc->nparams, sizeof(jack_driver_param_desc_t));

  1451. 

  1452.         i = 0;

  1453.         strcpy(desc->params[i].name, "channels");

  1454.         desc->params[i].character = 'c';

  1455.         desc->params[i].type = JackDriverParamInt;

  1456.         desc->params[i].value.ui = 0;

  1457.         strcpy(desc->params[i].short_desc, "Maximum number of channels");

  1458.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1459. 

  1460.         i++;

  1461.         strcpy(desc->params[i].name, "inchannels");

  1462.         desc->params[i].character = 'i';

  1463.         desc->params[i].type = JackDriverParamInt;

  1464.         desc->params[i].value.ui = 0;

  1465.         strcpy(desc->params[i].short_desc, "Maximum number of input channels");

  1466.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1467. 

  1468.         i++;

  1469.         strcpy(desc->params[i].name, "outchannels");

  1470.         desc->params[i].character = 'o';

  1471.         desc->params[i].type = JackDriverParamInt;

  1472.         desc->params[i].value.ui = 0;

  1473.         strcpy(desc->params[i].short_desc, "Maximum number of output channels");

  1474.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1475. 

  1476.         i++;

  1477.         strcpy(desc->params[i].name, "capture");

  1478.         desc->params[i].character = 'C';

  1479.         desc->params[i].type = JackDriverParamString;

  1480.         strcpy(desc->params[i].value.str, "will take default CoreAudio input device");

  1481.         strcpy(desc->params[i].short_desc, "Provide capture ports. Optionally set CoreAudio device name");

  1482.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1483. 

  1484.         i++;

  1485.         strcpy(desc->params[i].name, "playback");

  1486.         desc->params[i].character = 'P';

  1487.         desc->params[i].type = JackDriverParamString;

  1488.         strcpy(desc->params[i].value.str, "will take default CoreAudio output device");

  1489.         strcpy(desc->params[i].short_desc, "Provide playback ports. Optionally set CoreAudio device name");

  1490.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1491. 

  1492.         i++;

  1493.         strcpy (desc->params[i].name, "monitor");

  1494.         desc->params[i].character = 'm';

  1495.         desc->params[i].type = JackDriverParamBool;

  1496.         desc->params[i].value.i = 0;

  1497.         strcpy(desc->params[i].short_desc, "Provide monitor ports for the output");

  1498.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1499. 

  1500.         i++;

  1501.         strcpy(desc->params[i].name, "duplex");

  1502.         desc->params[i].character = 'D';

  1503.         desc->params[i].type = JackDriverParamBool;

  1504.         desc->params[i].value.i = TRUE;

  1505.         strcpy(desc->params[i].short_desc, "Provide both capture and playback ports");

  1506.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1507. 

  1508.         i++;

  1509.         strcpy(desc->params[i].name, "rate");

  1510.         desc->params[i].character = 'r';

  1511.         desc->params[i].type = JackDriverParamUInt;

  1512.         desc->params[i].value.ui = 44100U;

  1513.         strcpy(desc->params[i].short_desc, "Sample rate");

  1514.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1515. 

  1516.         i++;

  1517.         strcpy(desc->params[i].name, "period");

  1518.         desc->params[i].character = 'p';

  1519.         desc->params[i].type = JackDriverParamUInt;

  1520.         desc->params[i].value.ui = 128U;

  1521.         strcpy(desc->params[i].short_desc, "Frames per period");

  1522.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1523. 

  1524.         i++;

  1525.         strcpy(desc->params[i].name, "device");

  1526.         desc->params[i].character = 'd';

  1527.         desc->params[i].type = JackDriverParamString;

  1528.         strcpy(desc->params[i].value.str, "will take default CoreAudio device name");

  1529.         strcpy(desc->params[i].short_desc, "CoreAudio device name");

  1530.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1531. 

  1532.         i++;

  1533.         strcpy(desc->params[i].name, "input-latency");

  1534.         desc->params[i].character = 'I';

  1535.         desc->params[i].type = JackDriverParamUInt;

  1536.         desc->params[i].value.i = 0;

  1537.         strcpy(desc->params[i].short_desc, "Extra input latency (frames)");

  1538.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1539. 

  1540.         i++;

  1541.         strcpy(desc->params[i].name, "output-latency");

  1542.         desc->params[i].character = 'O';

  1543.         desc->params[i].type = JackDriverParamUInt;

  1544.         desc->params[i].value.i = 0;

  1545.         strcpy(desc->params[i].short_desc, "Extra output latency (frames)");

  1546.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1547. 

  1548.         i++;

  1549.         strcpy(desc->params[i].name, "list-devices");

  1550.         desc->params[i].character = 'l';

  1551.         desc->params[i].type = JackDriverParamBool;

  1552.         desc->params[i].value.i = FALSE;

  1553.         strcpy(desc->params[i].short_desc, "Display available CoreAudio devices");

  1554.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1555.         

  1556.         i++;

  1557.         strcpy(desc->params[i].name, "hog");

  1558.         desc->params[i].character = 'H';

  1559.         desc->params[i].type = JackDriverParamBool;

  1560.         desc->params[i].value.i = FALSE;

  1561.         strcpy(desc->params[i].short_desc, "Take exclusive access of the audio device");

  1562.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1563.         

  1564.         i++;

  1565.         strcpy(desc->params[i].name, "async-latency");

  1566.         desc->params[i].character = 'L';

  1567.         desc->params[i].type = JackDriverParamUInt;

  1568.         desc->params[i].value.i = 100;

  1569.         strcpy(desc->params[i].short_desc, "Extra output latency in asynchronous mode (percent)");

  1570.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1571.         

  1572.         i++;

  1573.         strcpy(desc->params[i].name, "grain");

  1574.         desc->params[i].character = 'G';

  1575.         desc->params[i].type = JackDriverParamUInt;

  1576.         desc->params[i].value.i = 100;

  1577.         strcpy(desc->params[i].short_desc, "Computation grain in RT thread (percent)");

  1578.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  1579. 

  1580.         return desc;

  1581.     }

  1582. 

  1583.     SERVER_EXPORT Jack::JackDriverClientInterface* driver_initialize(Jack::JackLockedEngine* engine, Jack::JackSynchro* table, const JSList* params) 

  1584.     {

  1585.         jack_nframes_t srate = 44100;

  1586.         jack_nframes_t frames_per_interrupt = 128;

  1587.         int capture = FALSE;

  1588.         int playback = FALSE;

  1589.         int chan_in = 0;

  1590.         int chan_out = 0;

  1591.         bool monitor = false;

  1592.         const char* capture_driver_uid = "";

  1593.         const char* playback_driver_uid = "";

  1594.         const JSList *node;

  1595.         const jack_driver_param_t *param;

  1596.         jack_nframes_t systemic_input_latency = 0;

  1597.         jack_nframes_t systemic_output_latency = 0;

  1598.         int async_output_latency = 100;

  1599.         int computation_grain = -1;

  1600.         bool hogged = false;

  1601.     

  1602.         for (node = params; node; node = jack_slist_next(node)) {

  1603.             param = (const jack_driver_param_t *) node->data;

  1604.        

  1605.             switch (param->character) {

  1606. 

  1607.                 case 'd':

  1608.                     capture_driver_uid = strdup(param->value.str);

  1609.                     playback_driver_uid = strdup(param->value.str);

  1610.                     break;

  1611. 

  1612.                 case 'D':

  1613.                     capture = TRUE;

  1614.                     playback = TRUE;

  1615.                     break;

  1616. 

  1617.                 case 'c':

  1618.                     chan_in = chan_out = (int) param->value.ui;

  1619.                     break;

  1620. 

  1621.                 case 'i':

  1622.                     chan_in = (int) param->value.ui;

  1623.                     break;

  1624. 

  1625.                 case 'o':

  1626.                     chan_out = (int) param->value.ui;

  1627.                     break;

  1628. 

  1629.                 case 'C':

  1630.                     capture = TRUE;

  1631.                     if (strcmp(param->value.str, "none") != 0) {

  1632.                         capture_driver_uid = strdup(param->value.str);

  1633.                     }

  1634.                     break;

  1635. 

  1636.                 case 'P':

  1637.                     playback = TRUE;

  1638.                     if (strcmp(param->value.str, "none") != 0) {

  1639.                         playback_driver_uid = strdup(param->value.str);

  1640.                     }

  1641.                     break;

  1642. 

  1643.                 case 'm':

  1644.                     monitor = param->value.i;

  1645.                     break;

  1646. 

  1647.                 case 'r':

  1648.                     srate = param->value.ui;

  1649.                     break;

  1650. 

  1651.                 case 'p':

  1652.                     frames_per_interrupt = (unsigned int) param->value.ui;

  1653.                     break;

  1654. 

  1655.                 case 'I':

  1656.                     systemic_input_latency = param->value.ui;

  1657.                     break;

  1658. 

  1659.                 case 'O':

  1660.                     systemic_output_latency = param->value.ui;

  1661.                     break;

  1662. 

  1663.                 case 'l':

  1664.                     Jack::DisplayDeviceNames();

  1665.                     break;

  1666.                     

  1667.                 case 'H':

  1668.                     hogged = true;

  1669.                     break;

  1670.                     

  1671.                 case 'L':

  1672.                     async_output_latency = param->value.ui;

  1673.                     break;

  1674.                     

  1675.                 case 'G':

  1676.                     computation_grain = param->value.ui;

  1677.                     break;

  1678.             }

  1679.         }

  1680. 

  1681.         /* duplex is the default */

  1682.         if (!capture && !playback) {

  1683.             capture = TRUE;

  1684.             playback = TRUE;

  1685.         }

  1686. 

  1687.         Jack::JackCoreAudioDriver* driver = new Jack::JackCoreAudioDriver("system", "coreaudio", engine, table);

  1688.         if (driver->Open(frames_per_interrupt, srate, capture, playback, chan_in, chan_out, monitor, capture_driver_uid, 

  1689.             playback_driver_uid, systemic_input_latency, systemic_output_latency, async_output_latency, computation_grain, hogged) == 0) {

  1690.             return driver;

  1691.         } else {

  1692.             delete driver;

  1693.             return NULL;

  1694.         }

  1695.     }

  1696. 

  1697. #ifdef __cplusplus

  1698. }

  1699. #endif

  1700.