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jack2/macosx/coreaudio/JackCoreAudioAdapter.cpp

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  1. /*

  2. Copyright (C) 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 "JackCoreAudioAdapter.h"

  21. #include "JackError.h"

  22. #include <unistd.h>

  23. 

  24. #include <CoreServices/CoreServices.h>

  25. 

  26. namespace Jack

  27. {

  28. 

  29. static void PrintStreamDesc(AudioStreamBasicDescription *inDesc)

  30. {

  31.     jack_log("- - - - - - - - - - - - - - - - - - - -");

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

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

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

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

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

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

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

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

  40.     jack_log("- - - - - - - - - - - - - - - - - - - -");

  41. }

  42. 

  43. static OSStatus DisplayDeviceNames()

  44. {

  45.     UInt32 size;

  46.     Boolean isWritable;

  47.     int i, deviceNum;

  48.     OSStatus err;

  49.     CFStringRef UIname;

  50. 

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

  52.     if (err != noErr)

  53.         return err;

  54. 

  55.     deviceNum = size / sizeof(AudioDeviceID);

  56.     AudioDeviceID devices[deviceNum];

  57. 

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

  59.     if (err != noErr)

  60.         return err;

  61. 

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

  63.         char device_name[256];

  64.         char internal_name[256];

  65. 

  66.         size = sizeof(CFStringRef);

  67.         UIname = NULL;

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

  69.         if (err == noErr) {

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

  71.         } else {

  72.             goto error;

  73.         }

  74. 

  75.         size = 256;

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

  77.         if (err != noErr)

  78.             return err;

  79. 

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

  81.     }

  82. 

  83.     return noErr;

  84. 

  85. error:

  86.     if (UIname != NULL)

  87.         CFRelease(UIname);

  88.     return err;

  89. }

  90. 

  91. static void printError(OSStatus err)

  92. {

  93.     switch (err) {

  94.         case kAudioHardwareNoError:

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

  96.             break;

  97.         case kAudioConverterErr_FormatNotSupported:

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

  99.             break;

  100.         case kAudioConverterErr_OperationNotSupported:

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

  102.             break;

  103.         case kAudioConverterErr_PropertyNotSupported:

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

  105.             break;

  106.         case kAudioConverterErr_InvalidInputSize:

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

  108.             break;

  109.         case kAudioConverterErr_InvalidOutputSize:

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

  111.             break;

  112.         case kAudioConverterErr_UnspecifiedError:

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

  114.             break;

  115.         case kAudioConverterErr_BadPropertySizeError:

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

  117.             break;

  118.         case kAudioConverterErr_RequiresPacketDescriptionsError:

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

  120.             break;

  121.         case kAudioConverterErr_InputSampleRateOutOfRange:

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

  123.             break;

  124.         case kAudioConverterErr_OutputSampleRateOutOfRange:

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

  126.             break;

  127.         case kAudioHardwareNotRunningError:

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

  129.             break;

  130.         case kAudioHardwareUnknownPropertyError:

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

  132.             break;

  133.         case kAudioHardwareIllegalOperationError:

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

  135.             break;

  136.         case kAudioHardwareBadDeviceError:

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

  138.             break;

  139.         case kAudioHardwareBadStreamError:

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

  141.             break;

  142.         case kAudioDeviceUnsupportedFormatError:

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

  144.             break;

  145.         case kAudioDevicePermissionsError:

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

  147.             break;

  148.         case kAudioHardwareBadObjectError:

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

  150.             break;

  151.         case kAudioHardwareUnsupportedOperationError:

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

  153.             break;

  154.         default:

  155.             jack_log("error code : unknown");

  156.             break;

  157.     }

  158. }

  159. 

  160. OSStatus JackCoreAudioAdapter::SRNotificationCallback(AudioDeviceID inDevice,

  161.                                                         UInt32 inChannel,

  162.                                                         Boolean	isInput,

  163.                                                         AudioDevicePropertyID inPropertyID,

  164.                                                         void* inClientData)

  165. {

  166.     JackCoreAudioAdapter* driver = static_cast<JackCoreAudioAdapter*>(inClientData);

  167. 

  168.     switch (inPropertyID) {

  169. 

  170.         case kAudioDevicePropertyNominalSampleRate: {

  171.             jack_log("JackCoreAudioAdapter::SRNotificationCallback kAudioDevicePropertyNominalSampleRate");

  172.             driver->fState = true;

  173.             break;

  174.         }

  175.     }

  176. 

  177.     return noErr;

  178. }

  179. 

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

  181. OSStatus JackCoreAudioAdapter::DeviceNotificationCallback(AudioDeviceID inDevice,

  182.         UInt32 inChannel,

  183.         Boolean	isInput,

  184.         AudioDevicePropertyID inPropertyID,

  185.         void* inClientData)

  186. {

  187. 

  188.     switch (inPropertyID) {

  189. 

  190.         case kAudioDeviceProcessorOverload: {

  191.             jack_error("JackCoreAudioAdapter::DeviceNotificationCallback kAudioDeviceProcessorOverload");

  192.             break;

  193. 		}

  194. 

  195.         case kAudioDevicePropertyStreamConfiguration: {

  196.             jack_error("Cannot handle kAudioDevicePropertyStreamConfiguration");

  197.             return kAudioHardwareUnsupportedOperationError;

  198.         }

  199. 

  200.         case kAudioDevicePropertyNominalSampleRate: {

  201.             jack_error("Cannot handle kAudioDevicePropertyNominalSampleRate");

  202.             return kAudioHardwareUnsupportedOperationError;

  203.         }

  204. 

  205.     }

  206.     return noErr;

  207. }

  208. 

  209. int JackCoreAudioAdapter::AddListeners()

  210. {

  211.     OSStatus err = noErr;

  212. 

  213.     // Add listeners

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

  215.     if (err != noErr) {

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

  217.         printError(err);

  218.         return -1;

  219.     }

  220. 

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

  222.     if (err != noErr) {

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

  224.         printError(err);

  225.         return -1;

  226.     }

  227. 

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

  229.     if (err != noErr) {

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

  231.         printError(err);

  232.         return -1;

  233.     }

  234. 

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

  236.     if (err != noErr) {

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

  238.         printError(err);

  239.         return -1;

  240.     }

  241. 

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

  243.     if (err != noErr) {

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

  245.         printError(err);

  246.         return -1;

  247.     }

  248. 

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

  250.     if (err != noErr) {

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

  252.         printError(err);

  253.         return -1;

  254.     }

  255. 

  256.     return 0;

  257. }

  258. 

  259. void JackCoreAudioAdapter::RemoveListeners()

  260. {

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

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

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

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

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

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

  267. }

  268. 

  269. OSStatus JackCoreAudioAdapter::Render(void *inRefCon,

  270.                                         AudioUnitRenderActionFlags *ioActionFlags,

  271.                                         const AudioTimeStamp *inTimeStamp,

  272.                                         UInt32 inBusNumber,

  273.                                         UInt32 inNumberFrames,

  274.                                         AudioBufferList *ioData)

  275. {

  276.     JackCoreAudioAdapter* adapter = static_cast<JackCoreAudioAdapter*>(inRefCon);

  277.     AudioUnitRender(adapter->fAUHAL, ioActionFlags, inTimeStamp, 1, inNumberFrames, adapter->fInputData);

  278. 

  279.     jack_default_audio_sample_t* inputBuffer[adapter->fCaptureChannels];

  280.     jack_default_audio_sample_t* outputBuffer[adapter->fPlaybackChannels];

  281. 

  282.     for (int i = 0; i < adapter->fCaptureChannels; i++) {

  283.         inputBuffer[i] = (jack_default_audio_sample_t*)adapter->fInputData->mBuffers[i].mData;

  284.     }

  285.     for (int i = 0; i < adapter->fPlaybackChannels; i++) {

  286.         outputBuffer[i] = (jack_default_audio_sample_t*)ioData->mBuffers[i].mData;

  287.     }

  288. 

  289.     adapter->PushAndPull((jack_default_audio_sample_t**)inputBuffer, (jack_default_audio_sample_t**)outputBuffer, inNumberFrames);

  290.     return noErr;

  291. }

  292. 

  293. JackCoreAudioAdapter::JackCoreAudioAdapter(jack_nframes_t buffer_size, jack_nframes_t sample_rate, const JSList* params)

  294.                 :JackAudioAdapterInterface(buffer_size, sample_rate), fInputData(0), fCapturing(false), fPlaying(false), fState(false)

  295. {

  296.     const JSList* node;

  297.     const jack_driver_param_t* param;

  298.     int in_nChannels = 0;

  299.     int out_nChannels = 0;

  300.     char captureName[256];

  301.     char playbackName[256];

  302.     fCaptureUID[0] = 0;

  303.     fPlaybackUID[0] = 0;

  304.     fClockDriftCompensate = false;

  305. 

  306.     // Default values

  307.     fCaptureChannels = -1;

  308.     fPlaybackChannels = -1;

  309. 

  310.     SInt32 major;

  311.     SInt32 minor;

  312.     Gestalt(gestaltSystemVersionMajor, &major);

  313.     Gestalt(gestaltSystemVersionMinor, &minor);

  314. 

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

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

  317.         CFRunLoopRef theRunLoop = NULL;

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

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

  320.         if (theError != noErr) {

  321.             jack_error("JackCoreAudioAdapter::Open kAudioHardwarePropertyRunLoop error");

  322.         }

  323.     }

  324. 

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

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

  327. 

  328.         switch (param->character) {

  329. 

  330.             case 'c' :

  331.                 fCaptureChannels = fPlaybackChannels = param->value.ui;

  332.                 break;

  333. 

  334.             case 'i':

  335.                 fCaptureChannels = param->value.ui;

  336.                 break;

  337. 

  338.             case 'o':

  339.                 fPlaybackChannels = param->value.ui;

  340.                 break;

  341. 

  342.             case 'C':

  343.                 fCapturing = true;

  344.                 strncpy(fCaptureUID, param->value.str, 256);

  345.                 break;

  346. 

  347.             case 'P':

  348.                 fPlaying = true;

  349.                 strncpy(fPlaybackUID, param->value.str, 256);

  350.                 break;

  351. 

  352.             case 'd':

  353.                 strncpy(fCaptureUID, param->value.str, 256);

  354.                 strncpy(fPlaybackUID, param->value.str, 256);

  355.                 break;

  356. 

  357.             case 'D':

  358.                 fCapturing = fPlaying = true;

  359.                 break;

  360. 

  361.             case 'r':

  362.                 SetAdaptedSampleRate(param->value.ui);

  363.                 break;

  364. 

  365.             case 'p':

  366.                 SetAdaptedBufferSize(param->value.ui);

  367.                 break;

  368. 

  369.             case 'l':

  370.                 DisplayDeviceNames();

  371.                 break;

  372. 

  373.             case 'q':

  374.                 fQuality = param->value.ui;

  375.                 break;

  376. 

  377.             case 'g':

  378.                 fRingbufferCurSize = param->value.ui;

  379.                 fAdaptative = false;

  380.                 break;

  381. 

  382.             case 's':

  383.                 fClockDriftCompensate = true;

  384.                 break;

  385.         }

  386.     }

  387. 

  388.     /* duplex is the default */

  389.     if (!fCapturing && !fPlaying) {

  390.         fCapturing = true;

  391.         fPlaying = true;

  392.     }

  393. 

  394.     if (SetupDevices(fCaptureUID, fPlaybackUID, captureName, playbackName, fAdaptedSampleRate) < 0)

  395.         throw -1;

  396. 

  397.     if (SetupChannels(fCapturing, fPlaying, fCaptureChannels, fPlaybackChannels, in_nChannels, out_nChannels, true) < 0)

  398.         throw -1;

  399. 

  400.     if (SetupBufferSize(fAdaptedBufferSize) < 0)

  401.          throw -1;

  402. 

  403.     if (SetupSampleRate(fAdaptedSampleRate) < 0)

  404.         throw -1;

  405. 

  406.     if (OpenAUHAL(fCapturing, fPlaying, fCaptureChannels, fPlaybackChannels, in_nChannels, out_nChannels, fAdaptedBufferSize, fAdaptedSampleRate) < 0)

  407.         throw -1;

  408. 

  409.     if (fCapturing && fCaptureChannels > 0)

  410.         if (SetupBuffers(fCaptureChannels) < 0)

  411.             throw -1;

  412. 

  413.     if (AddListeners() < 0)

  414.         throw -1;

  415. }

  416. 

  417. OSStatus JackCoreAudioAdapter::GetDefaultDevice(AudioDeviceID* id)

  418. {

  419.     OSStatus res;

  420.     UInt32 theSize = sizeof(UInt32);

  421.     AudioDeviceID inDefault;

  422.     AudioDeviceID outDefault;

  423. 

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

  425.         return res;

  426. 

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

  428.         return res;

  429. 

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

  431. 

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

  433.     if (inDefault != outDefault) {

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

  435.         return kAudioHardwareBadDeviceError;

  436.     } else if (inDefault == 0) {

  437.         jack_error("Default input and output devices are null !!");

  438.         return kAudioHardwareBadDeviceError;

  439.     } else {

  440.         *id = inDefault;

  441.         return noErr;

  442.     }

  443. }

  444. 

  445. OSStatus JackCoreAudioAdapter::GetTotalChannels(AudioDeviceID device, int& channelCount, bool isInput)

  446. {

  447.     OSStatus err = noErr;

  448.     UInt32	outSize;

  449.     Boolean	outWritable;

  450. 

  451.     channelCount = 0;

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

  453.     if (err == noErr) {

  454.         AudioBufferList bufferList[outSize];

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

  456.         if (err == noErr) {

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

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

  459.         }

  460.     }

  461. 

  462.     return err;

  463. }

  464. 

  465. OSStatus JackCoreAudioAdapter::GetDeviceIDFromUID(const char* UID, AudioDeviceID* id)

  466. {

  467.     UInt32 size = sizeof(AudioValueTranslation);

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

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

  470. 

  471.     if (inIUD == NULL) {

  472.         return kAudioHardwareUnspecifiedError;

  473.     } else {

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

  475.         CFRelease(inIUD);

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

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

  478.     }

  479. }

  480. 

  481. OSStatus JackCoreAudioAdapter::GetDefaultInputDevice(AudioDeviceID* id)

  482. {

  483.     OSStatus res;

  484.     UInt32 theSize = sizeof(UInt32);

  485.     AudioDeviceID inDefault;

  486. 

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

  488.         return res;

  489. 

  490.     if (inDefault == 0) {

  491.         jack_error("Error : input device is 0, please select a correct one !!");

  492.         return -1;

  493.     }

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

  495.     *id = inDefault;

  496.     return noErr;

  497. }

  498. 

  499. OSStatus JackCoreAudioAdapter::GetDefaultOutputDevice(AudioDeviceID* id)

  500. {

  501.     OSStatus res;

  502.     UInt32 theSize = sizeof(UInt32);

  503.     AudioDeviceID outDefault;

  504. 

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

  506.         return res;

  507. 

  508.     if (outDefault == 0) {

  509.         jack_error("Error : output device is 0, please select a correct one !!");

  510.         return -1;

  511.     }

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

  513.     *id = outDefault;

  514.     return noErr;

  515. }

  516. 

  517. OSStatus JackCoreAudioAdapter::GetDeviceNameFromID(AudioDeviceID id, char* name)

  518. {

  519.     UInt32 size = 256;

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

  521. }

  522. 

  523. // Setup

  524. int JackCoreAudioAdapter::SetupDevices(const char* capture_driver_uid,

  525.                                         const char* playback_driver_uid,

  526.                                         char* capture_driver_name,

  527.                                         char* playback_driver_name,

  528.                                         jack_nframes_t samplerate)

  529. {

  530.     capture_driver_name[0] = 0;

  531.     playback_driver_name[0] = 0;

  532. 

  533.     // Duplex

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

  535. 

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

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

  538. 

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

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

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

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

  543.                     return -1;

  544.                 }

  545.             }

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

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

  548.                 return -1;

  549.             }

  550. 

  551.         } else {

  552. 

  553.             // Creates aggregate device

  554.             AudioDeviceID captureID, playbackID;

  555. 

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

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

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

  559.                     jack_error("Cannot open default input device");

  560.                     return -1;

  561.                 }

  562.             }

  563. 

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

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

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

  567.                     jack_error("Cannot open default output device");

  568.                     return -1;

  569.                 }

  570.             }

  571. 

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

  573.                 return -1;

  574.         }

  575. 

  576.     // Capture only

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

  578.         jack_log("JackCoreAudioAdapter::Open capture only");

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

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

  581.                 jack_error("Cannot open default input device");

  582.                 return -1;

  583.             }

  584.         }

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

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

  587.             return -1;

  588.         }

  589. 

  590.     // Playback only

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

  592.         jack_log("JackCoreAudioAdapter::Open playback only");

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

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

  595.                 jack_error("Cannot open default output device");

  596.                 return -1;

  597.             }

  598.         }

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

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

  601.             return -1;

  602.         }

  603. 

  604.     // Use default driver in duplex mode

  605.     } else {

  606.         jack_log("JackCoreAudioAdapter::Open default driver");

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

  608.             jack_error("Cannot open default device in duplex mode, so aggregate default input and default output");

  609. 

  610.             // Creates aggregate device

  611.             AudioDeviceID captureID, playbackID;

  612. 

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

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

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

  616.                     jack_error("Cannot open default input device");

  617.                     return -1;

  618.                 }

  619.             }

  620. 

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

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

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

  624.                     jack_error("Cannot open default output device");

  625.                     return -1;

  626.                 }

  627.             }

  628. 

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

  630.                 return -1;

  631.         }

  632.     }

  633. 

  634.     return 0;

  635. }

  636. 

  637. int JackCoreAudioAdapter::SetupChannels(bool capturing,

  638.                                         bool playing,

  639.                                         int& inchannels,

  640.                                         int& outchannels,

  641.                                         int& in_nChannels,

  642.                                         int& out_nChannels,

  643.                                         bool strict)

  644. {

  645.     OSStatus err = noErr;

  646. 

  647.     if (capturing) {

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

  649.         if (err != noErr) {

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

  651.             printError(err);

  652.             return -1;

  653.         } else {

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

  655.         }

  656.     }

  657. 

  658.     if (playing) {

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

  660.         if (err != noErr) {

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

  662.             printError(err);

  663.             return -1;

  664.         } else {

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

  666.         }

  667.     }

  668. 

  669.     if (inchannels > in_nChannels) {

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

  671.         if (strict)

  672.             return -1;

  673.     }

  674. 

  675.     if (outchannels > out_nChannels) {

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

  677.         if (strict)

  678.             return -1;

  679.     }

  680. 

  681.     if (inchannels == -1) {

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

  683.         inchannels = in_nChannels;

  684.     }

  685. 

  686.     if (outchannels == -1) {

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

  688.         outchannels = out_nChannels;

  689.     }

  690. 

  691.     return 0;

  692. }

  693. 

  694. int JackCoreAudioAdapter::SetupBufferSize(jack_nframes_t buffer_size)

  695. {

  696.     // Setting buffer size

  697.     UInt32 outSize = sizeof(UInt32);

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

  699.     if (err != noErr) {

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

  701.         printError(err);

  702.         return -1;

  703.     }

  704. 

  705.     return 0;

  706. }

  707. 

  708. int JackCoreAudioAdapter::SetupSampleRate(jack_nframes_t samplerate)

  709. {

  710.     return SetupSampleRateAux(fDeviceID, samplerate);

  711. }

  712. 

  713. int JackCoreAudioAdapter::SetupSampleRateAux(AudioDeviceID inDevice, jack_nframes_t samplerate)

  714. {

  715.     OSStatus err = noErr;

  716.     UInt32 outSize;

  717.     Float64 sampleRate;

  718. 

  719.     // Get sample rate

  720.     outSize =  sizeof(Float64);

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

  722.     if (err != noErr) {

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

  724.         printError(err);

  725.         return -1;

  726.     } else {

  727.         jack_log("Current sample rate = %f", sampleRate);

  728.     }

  729. 

  730.     // If needed, set new sample rate

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

  732.         sampleRate = (Float64)samplerate;

  733. 

  734.         // To get SR change notification

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

  736.         if (err != noErr) {

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

  738.             printError(err);

  739.             return -1;

  740.         }

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

  742.         if (err != noErr) {

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

  744.             printError(err);

  745.             return -1;

  746.         }

  747. 

  748.         // Waiting for SR change notification

  749.         int count = 0;

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

  751.             usleep(100000);

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

  753.         }

  754. 

  755.         // Remove SR change notification

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

  757.     }

  758. 

  759.     return 0;

  760. }

  761. 

  762. int JackCoreAudioAdapter::SetupBuffers(int inchannels)

  763. {

  764.     jack_log("JackCoreAudioAdapter::SetupBuffers: input = %ld", inchannels);

  765. 

  766.     // Prepare buffers

  767.     fInputData = (AudioBufferList*)malloc(sizeof(UInt32) + inchannels * sizeof(AudioBuffer));

  768.     fInputData->mNumberBuffers = inchannels;

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

  770.         fInputData->mBuffers[i].mNumberChannels = 1;

  771.         fInputData->mBuffers[i].mDataByteSize = fAdaptedBufferSize * sizeof(jack_default_audio_sample_t);

  772.         fInputData->mBuffers[i].mData = malloc(fAdaptedBufferSize * sizeof(jack_default_audio_sample_t));

  773.     }

  774.     return 0;

  775. }

  776. 

  777. void JackCoreAudioAdapter::DisposeBuffers()

  778. {

  779.     if (fInputData) {

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

  781.             free(fInputData->mBuffers[i].mData);

  782.         free(fInputData);

  783.         fInputData = 0;

  784.     }

  785. }

  786. 

  787. int JackCoreAudioAdapter::OpenAUHAL(bool capturing,

  788.                                    bool playing,

  789.                                    int inchannels,

  790.                                    int outchannels,

  791.                                    int in_nChannels,

  792.                                    int out_nChannels,

  793.                                    jack_nframes_t buffer_size,

  794.                                    jack_nframes_t samplerate)

  795. {

  796.     ComponentResult err1;

  797.     UInt32 enableIO;

  798.     AudioStreamBasicDescription srcFormat, dstFormat;

  799.     AudioDeviceID currAudioDeviceID;

  800.     UInt32 size;

  801. 

  802.     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);

  803. 

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

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

  806.         return -1;

  807.     }

  808. 

  809.     // AUHAL

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

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

  812. 

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

  814.     if (err1 != noErr) {

  815.         jack_error("Error calling OpenAComponent");

  816.         printError(err1);

  817.         goto error;

  818.     }

  819. 

  820.     err1 = AudioUnitInitialize(fAUHAL);

  821.     if (err1 != noErr) {

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

  823.         printError(err1);

  824.         goto error;

  825.     }

  826. 

  827.     // Start I/O

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

  829.         enableIO = 1;

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

  831.     } else {

  832.         enableIO = 0;

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

  834.     }

  835. 

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

  837.     if (err1 != noErr) {

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

  839.         printError(err1);

  840.         goto error;

  841.     }

  842. 

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

  844.         enableIO = 1;

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

  846.     } else {

  847.         enableIO = 0;

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

  849.     }

  850. 

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

  852.     if (err1 != noErr) {

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

  854.         printError(err1);

  855.         goto error;

  856.     }

  857. 

  858.     size = sizeof(AudioDeviceID);

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

  860.     if (err1 != noErr) {

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

  862.         printError(err1);

  863.         goto error;

  864.     } else {

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

  866.     }

  867. 

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

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

  870.     if (err1 != noErr) {

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

  872.         printError(err1);

  873.         goto error;

  874.     }

  875. 

  876.     // Set buffer size

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

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

  879.         if (err1 != noErr) {

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

  881.             printError(err1);

  882.             goto error;

  883.         }

  884.     }

  885. 

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

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

  888.         if (err1 != noErr) {

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

  890.             printError(err1);

  891.             goto error;

  892.         }

  893.     }

  894. 

  895.     // Setup channel map

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

  897.         SInt32 chanArr[in_nChannels];

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

  899.             chanArr[i] = -1;

  900.         }

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

  902.             chanArr[i] = i;

  903.         }

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

  905.         if (err1 != noErr) {

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

  907.             printError(err1);

  908.             goto error;

  909.         }

  910.     }

  911. 

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

  913.         SInt32 chanArr[out_nChannels];

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

  915.             chanArr[i] = -1;

  916.         }

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

  918.             chanArr[i] = i;

  919.         }

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

  921.         if (err1 != noErr) {

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

  923.             printError(err1);

  924.             goto error;

  925.         }

  926.     }

  927. 

  928.     // Setup stream converters

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

  930. 

  931.         size = sizeof(AudioStreamBasicDescription);

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

  933.         if (err1 != noErr) {

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

  935.             printError(err1);

  936.             goto error;

  937.         }

  938.         PrintStreamDesc(&srcFormat);

  939. 

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

  941.         srcFormat.mSampleRate = samplerate;

  942.         srcFormat.mFormatID = kAudioFormatLinearPCM;

  943.         srcFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;

  944.         srcFormat.mBytesPerPacket = sizeof(jack_default_audio_sample_t);

  945.         srcFormat.mFramesPerPacket = 1;

  946.         srcFormat.mBytesPerFrame = sizeof(jack_default_audio_sample_t);

  947.         srcFormat.mChannelsPerFrame = inchannels;

  948.         srcFormat.mBitsPerChannel = 32;

  949.         PrintStreamDesc(&srcFormat);

  950. 

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

  952. 

  953.         if (err1 != noErr) {

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

  955.             printError(err1);

  956.             goto error;

  957.         }

  958.     }

  959. 

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

  961. 

  962.         size = sizeof(AudioStreamBasicDescription);

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

  964.         if (err1 != noErr) {

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

  966.             printError(err1);

  967.             goto error;

  968.         }

  969.         PrintStreamDesc(&dstFormat);

  970. 

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

  972.         dstFormat.mSampleRate = samplerate;

  973.         dstFormat.mFormatID = kAudioFormatLinearPCM;

  974.         dstFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;

  975.         dstFormat.mBytesPerPacket = sizeof(jack_default_audio_sample_t);

  976.         dstFormat.mFramesPerPacket = 1;

  977.         dstFormat.mBytesPerFrame = sizeof(jack_default_audio_sample_t);

  978.         dstFormat.mChannelsPerFrame = outchannels;

  979.         dstFormat.mBitsPerChannel = 32;

  980.         PrintStreamDesc(&dstFormat);

  981. 

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

  983. 

  984.         if (err1 != noErr) {

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

  986.             printError(err1);

  987.             goto error;

  988.         }

  989.     }

  990. 

  991.     // Setup callbacks

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

  993.         AURenderCallbackStruct output;

  994.         output.inputProc = Render;

  995.         output.inputProcRefCon = this;

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

  997.         if (err1 != noErr) {

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

  999.             printError(err1);

  1000.             goto error;

  1001.         }

  1002.     } else {

  1003.         AURenderCallbackStruct output;

  1004.         output.inputProc = Render;

  1005.         output.inputProcRefCon = this;

  1006.         err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, 0, &output, sizeof(output));

  1007.         if (err1 != noErr) {

  1008.             jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_SetRenderCallback 0");

  1009.             printError(err1);

  1010.             goto error;

  1011.         }

  1012.     }

  1013. 

  1014.     return 0;

  1015. 

  1016. error:

  1017.     CloseAUHAL();

  1018.     return -1;

  1019. }

  1020. 

  1021. OSStatus JackCoreAudioAdapter::DestroyAggregateDevice()

  1022. {

  1023.     OSStatus osErr = noErr;

  1024.     AudioObjectPropertyAddress pluginAOPA;

  1025.     pluginAOPA.mSelector = kAudioPlugInDestroyAggregateDevice;

  1026.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  1027.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  1028.     UInt32 outDataSize;

  1029. 

  1030.     osErr = AudioObjectGetPropertyDataSize(fPluginID, &pluginAOPA, 0, NULL, &outDataSize);

  1031.     if (osErr != noErr) {

  1032.         jack_error("JackCoreAudioAdapter::DestroyAggregateDevice : AudioObjectGetPropertyDataSize error");

  1033.         printError(osErr);

  1034.         return osErr;

  1035.     }

  1036. 

  1037.     osErr = AudioObjectGetPropertyData(fPluginID, &pluginAOPA, 0, NULL, &outDataSize, &fDeviceID);

  1038.     if (osErr != noErr) {

  1039.         jack_error("JackCoreAudioAdapter::DestroyAggregateDevice : AudioObjectGetPropertyData error");

  1040.         printError(osErr);

  1041.         return osErr;

  1042.     }

  1043. 

  1044.     return noErr;

  1045. }

  1046. 

  1047. static CFStringRef GetDeviceName(AudioDeviceID id)

  1048. {

  1049.     UInt32 size = sizeof(CFStringRef);

  1050.     CFStringRef UIname;

  1051.     OSStatus err = AudioDeviceGetProperty(id, 0, false, kAudioDevicePropertyDeviceUID, &size, &UIname);

  1052.     return (err == noErr) ? UIname : NULL;

  1053. }

  1054. 

  1055. OSStatus JackCoreAudioAdapter::CreateAggregateDevice(AudioDeviceID captureDeviceID, AudioDeviceID playbackDeviceID, jack_nframes_t samplerate, AudioDeviceID* outAggregateDevice)

  1056. {

  1057.     OSStatus err = noErr;

  1058.     AudioObjectID sub_device[32];

  1059.     UInt32 outSize = sizeof(sub_device);

  1060. 

  1061.     err = AudioDeviceGetProperty(captureDeviceID, 0, kAudioDeviceSectionGlobal, kAudioAggregateDevicePropertyActiveSubDeviceList, &outSize, sub_device);

  1062.     vector<AudioDeviceID> captureDeviceIDArray;

  1063. 

  1064.     if (err != noErr) {

  1065.         jack_log("Input device does not have subdevices");

  1066.         captureDeviceIDArray.push_back(captureDeviceID);

  1067.     } else {

  1068.         int num_devices = outSize / sizeof(AudioObjectID);

  1069.         jack_log("Input device has %d subdevices", num_devices);

  1070.         for (int i = 0; i < num_devices; i++) {

  1071.             captureDeviceIDArray.push_back(sub_device[i]);

  1072.         }

  1073.     }

  1074. 

  1075.     err = AudioDeviceGetProperty(playbackDeviceID, 0, kAudioDeviceSectionGlobal, kAudioAggregateDevicePropertyActiveSubDeviceList, &outSize, sub_device);

  1076.     vector<AudioDeviceID> playbackDeviceIDArray;

  1077. 

  1078.     if (err != noErr) {

  1079.         jack_log("Output device does not have subdevices");

  1080.         playbackDeviceIDArray.push_back(playbackDeviceID);

  1081.     } else {

  1082.         int num_devices = outSize / sizeof(AudioObjectID);

  1083.         jack_log("Output device has %d subdevices", num_devices);

  1084.         for (int i = 0; i < num_devices; i++) {

  1085.             playbackDeviceIDArray.push_back(sub_device[i]);

  1086.         }

  1087.     }

  1088. 

  1089.     return CreateAggregateDeviceAux(captureDeviceIDArray, playbackDeviceIDArray, samplerate, outAggregateDevice);

  1090. }

  1091. 

  1092. OSStatus JackCoreAudioAdapter::CreateAggregateDeviceAux(vector<AudioDeviceID> captureDeviceID, vector<AudioDeviceID> playbackDeviceID, jack_nframes_t samplerate, AudioDeviceID* outAggregateDevice)

  1093. {

  1094.     OSStatus osErr = noErr;

  1095.     UInt32 outSize;

  1096.     Boolean outWritable;

  1097. 

  1098.     // Prepare sub-devices for clock drift compensation

  1099.     // Workaround for bug in the HAL : until 10.6.2

  1100.     AudioObjectPropertyAddress theAddressOwned = { kAudioObjectPropertyOwnedObjects, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };

  1101.     AudioObjectPropertyAddress theAddressDrift = { kAudioSubDevicePropertyDriftCompensation, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };

  1102.     UInt32 theQualifierDataSize = sizeof(AudioObjectID);

  1103.     AudioClassID inClass = kAudioSubDeviceClassID;

  1104.     void* theQualifierData = &inClass;

  1105.     UInt32 subDevicesNum = 0;

  1106. 

  1107.     //---------------------------------------------------------------------------

  1108.     // Setup SR of both devices otherwise creating AD may fail...

  1109.     //---------------------------------------------------------------------------

  1110.     UInt32 keptclockdomain = 0;

  1111.     UInt32 clockdomain = 0;

  1112.     outSize = sizeof(UInt32);

  1113.     bool need_clock_drift_compensation = false;

  1114. 

  1115.     for (UInt32 i = 0; i < captureDeviceID.size(); i++) {

  1116.         if (SetupSampleRateAux(captureDeviceID[i], samplerate) < 0) {

  1117.             jack_error("JackCoreAudioAdapter::CreateAggregateDevice : cannot set SR of input device");

  1118.         } else  {

  1119.             // Check clock domain

  1120.             osErr = AudioDeviceGetProperty(captureDeviceID[i], 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyClockDomain, &outSize, &clockdomain);

  1121.             if (osErr != 0) {

  1122.                 jack_error("JackCoreAudioAdapter::CreateAggregateDevice : kAudioDevicePropertyClockDomain error");

  1123.                 printError(osErr);

  1124.             } else {

  1125.                 keptclockdomain = (keptclockdomain == 0) ? clockdomain : keptclockdomain;

  1126.                 jack_log("JackCoreAudioAdapter::CreateAggregateDevice : input clockdomain = %d", clockdomain);

  1127.                 if (clockdomain != 0 && clockdomain != keptclockdomain) {

  1128.                     jack_error("JackCoreAudioAdapter::CreateAggregateDevice : devices do not share the same clock!! clock drift compensation would be needed...");

  1129.                     need_clock_drift_compensation = true;

  1130.                 }

  1131.             }

  1132.         }

  1133.     }

  1134. 

  1135.     for (UInt32 i = 0; i < playbackDeviceID.size(); i++) {

  1136.         if (SetupSampleRateAux(playbackDeviceID[i], samplerate) < 0) {

  1137.             jack_error("JackCoreAudioAdapter::CreateAggregateDevice : cannot set SR of output device");

  1138.         } else {

  1139.             // Check clock domain

  1140.             osErr = AudioDeviceGetProperty(playbackDeviceID[i], 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyClockDomain, &outSize, &clockdomain);

  1141.             if (osErr != 0) {

  1142.                 jack_error("JackCoreAudioAdapter::CreateAggregateDevice : kAudioDevicePropertyClockDomain error");

  1143.                 printError(osErr);

  1144.             } else {

  1145.                 keptclockdomain = (keptclockdomain == 0) ? clockdomain : keptclockdomain;

  1146.                 jack_log("JackCoreAudioAdapter::CreateAggregateDevice : output clockdomain = %d", clockdomain);

  1147.                 if (clockdomain != 0 && clockdomain != keptclockdomain) {

  1148.                     jack_error("JackCoreAudioAdapter::CreateAggregateDevice : devices do not share the same clock!! clock drift compensation would be needed...");

  1149.                     need_clock_drift_compensation = true;

  1150.                 }

  1151.             }

  1152.         }

  1153.     }

  1154. 

  1155.     // If no valid clock domain was found, then assume we have to compensate...

  1156.     if (keptclockdomain == 0) {

  1157.         need_clock_drift_compensation = true;

  1158.     }

  1159. 

  1160.     //---------------------------------------------------------------------------

  1161.     // Start to create a new aggregate by getting the base audio hardware plugin

  1162.     //---------------------------------------------------------------------------

  1163. 

  1164.     char device_name[256];

  1165.     for (UInt32 i = 0; i < captureDeviceID.size(); i++) {

  1166.         GetDeviceNameFromID(captureDeviceID[i], device_name);

  1167.         jack_info("Separated input = '%s' ", device_name);

  1168.     }

  1169. 

  1170.     for (UInt32 i = 0; i < playbackDeviceID.size(); i++) {

  1171.         GetDeviceNameFromID(playbackDeviceID[i], device_name);

  1172.         jack_info("Separated output = '%s' ", device_name);

  1173.     }

  1174. 

  1175.     osErr = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyPlugInForBundleID, &outSize, &outWritable);

  1176.     if (osErr != noErr) {

  1177.         jack_error("JackCoreAudioAdapter::CreateAggregateDevice : AudioHardwareGetPropertyInfo kAudioHardwarePropertyPlugInForBundleID error");

  1178.         printError(osErr);

  1179.         return osErr;

  1180.     }

  1181. 

  1182.     AudioValueTranslation pluginAVT;

  1183. 

  1184.     CFStringRef inBundleRef = CFSTR("com.apple.audio.CoreAudio");

  1185. 

  1186.     pluginAVT.mInputData = &inBundleRef;

  1187.     pluginAVT.mInputDataSize = sizeof(inBundleRef);

  1188.     pluginAVT.mOutputData = &fPluginID;

  1189.     pluginAVT.mOutputDataSize = sizeof(fPluginID);

  1190. 

  1191.     osErr = AudioHardwareGetProperty(kAudioHardwarePropertyPlugInForBundleID, &outSize, &pluginAVT);

  1192.     if (osErr != noErr) {

  1193.         jack_error("JackCoreAudioAdapter::CreateAggregateDevice : AudioHardwareGetProperty kAudioHardwarePropertyPlugInForBundleID error");

  1194.         printError(osErr);

  1195.         return osErr;

  1196.     }

  1197. 

  1198.     //-------------------------------------------------

  1199.     // Create a CFDictionary for our aggregate device

  1200.     //-------------------------------------------------

  1201. 

  1202.     CFMutableDictionaryRef aggDeviceDict = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);

  1203. 

  1204.     CFStringRef AggregateDeviceNameRef = CFSTR("JackDuplex");

  1205.     CFStringRef AggregateDeviceUIDRef = CFSTR("com.grame.JackDuplex");

  1206. 

  1207.     // add the name of the device to the dictionary

  1208.     CFDictionaryAddValue(aggDeviceDict, CFSTR(kAudioAggregateDeviceNameKey), AggregateDeviceNameRef);

  1209. 

  1210.     // add our choice of UID for the aggregate device to the dictionary

  1211.     CFDictionaryAddValue(aggDeviceDict, CFSTR(kAudioAggregateDeviceUIDKey), AggregateDeviceUIDRef);

  1212. 

  1213.     // add a "private aggregate key" to the dictionary

  1214.     int value = 1;

  1215.     CFNumberRef AggregateDeviceNumberRef = CFNumberCreate(NULL, kCFNumberIntType, &value);

  1216. 

  1217.     SInt32 system;

  1218.     Gestalt(gestaltSystemVersion, &system);

  1219. 

  1220.     jack_log("JackCoreAudioAdapter::CreateAggregateDevice : system version = %x limit = %x", system, 0x00001054);

  1221. 

  1222.     // Starting with 10.5.4 systems, the AD can be internal... (better)

  1223.     if (system < 0x00001054) {

  1224.         jack_log("JackCoreAudioAdapter::CreateAggregateDevice : public aggregate device....");

  1225.     } else {

  1226.         jack_log("JackCoreAudioAdapter::CreateAggregateDevice : private aggregate device....");

  1227.         CFDictionaryAddValue(aggDeviceDict, CFSTR(kAudioAggregateDeviceIsPrivateKey), AggregateDeviceNumberRef);

  1228.     }

  1229. 

  1230.     // Prepare sub-devices for clock drift compensation

  1231.     CFMutableArrayRef subDevicesArrayClock = NULL;

  1232. 

  1233.     /*

  1234.      if (fClockDriftCompensate) {

  1235.      if (need_clock_drift_compensation) {

  1236.      jack_info("Clock drift compensation activated...");

  1237.      subDevicesArrayClock = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);

  1238. 

  1239.      for (UInt32 i = 0; i < captureDeviceID.size(); i++) {

  1240.      CFStringRef UID = GetDeviceName(captureDeviceID[i]);

  1241.      if (UID) {

  1242.      CFMutableDictionaryRef subdeviceAggDeviceDict = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);

  1243.      CFDictionaryAddValue(subdeviceAggDeviceDict, CFSTR(kAudioSubDeviceUIDKey), UID);

  1244.      CFDictionaryAddValue(subdeviceAggDeviceDict, CFSTR(kAudioSubDeviceDriftCompensationKey), AggregateDeviceNumberRef);

  1245.      //CFRelease(UID);

  1246.      CFArrayAppendValue(subDevicesArrayClock, subdeviceAggDeviceDict);

  1247.      }

  1248.      }

  1249. 

  1250.      for (UInt32 i = 0; i < playbackDeviceID.size(); i++) {

  1251.      CFStringRef UID = GetDeviceName(playbackDeviceID[i]);

  1252.      if (UID) {

  1253.      CFMutableDictionaryRef subdeviceAggDeviceDict = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);

  1254.      CFDictionaryAddValue(subdeviceAggDeviceDict, CFSTR(kAudioSubDeviceUIDKey), UID);

  1255.      CFDictionaryAddValue(subdeviceAggDeviceDict, CFSTR(kAudioSubDeviceDriftCompensationKey), AggregateDeviceNumberRef);

  1256.      //CFRelease(UID);

  1257.      CFArrayAppendValue(subDevicesArrayClock, subdeviceAggDeviceDict);

  1258.      }

  1259.      }

  1260. 

  1261.      // add sub-device clock array for the aggregate device to the dictionary

  1262.      CFDictionaryAddValue(aggDeviceDict, CFSTR(kAudioAggregateDeviceSubDeviceListKey), subDevicesArrayClock);

  1263.      } else {

  1264.      jack_info("Clock drift compensation was asked but is not needed (devices use the same clock domain)");

  1265.      }

  1266.      }

  1267.      */

  1268. 

  1269.     //-------------------------------------------------

  1270.     // Create a CFMutableArray for our sub-device list

  1271.     //-------------------------------------------------

  1272. 

  1273.     // we need to append the UID for each device to a CFMutableArray, so create one here

  1274.     CFMutableArrayRef subDevicesArray = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);

  1275. 

  1276.     vector<CFStringRef> captureDeviceUID;

  1277.     for (UInt32 i = 0; i < captureDeviceID.size(); i++) {

  1278.         CFStringRef ref = GetDeviceName(captureDeviceID[i]);

  1279.         if (ref == NULL)

  1280.             return -1;

  1281.         captureDeviceUID.push_back(ref);

  1282.         // input sub-devices in this example, so append the sub-device's UID to the CFArray

  1283.         CFArrayAppendValue(subDevicesArray, ref);

  1284.     }

  1285. 

  1286.     vector<CFStringRef> playbackDeviceUID;

  1287.     for (UInt32 i = 0; i < playbackDeviceID.size(); i++) {

  1288.         CFStringRef ref = GetDeviceName(playbackDeviceID[i]);

  1289.         if (ref == NULL)

  1290.             return -1;

  1291.         playbackDeviceUID.push_back(ref);

  1292.         // output sub-devices in this example, so append the sub-device's UID to the CFArray

  1293.         CFArrayAppendValue(subDevicesArray, ref);

  1294.     }

  1295. 

  1296.     //-----------------------------------------------------------------------

  1297.     // Feed the dictionary to the plugin, to create a blank aggregate device

  1298.     //-----------------------------------------------------------------------

  1299. 

  1300.     AudioObjectPropertyAddress pluginAOPA;

  1301.     pluginAOPA.mSelector = kAudioPlugInCreateAggregateDevice;

  1302.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  1303.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  1304.     UInt32 outDataSize;

  1305. 

  1306.     osErr = AudioObjectGetPropertyDataSize(fPluginID, &pluginAOPA, 0, NULL, &outDataSize);

  1307.     if (osErr != noErr) {

  1308.         jack_error("JackCoreAudioAdapter::CreateAggregateDevice : AudioObjectGetPropertyDataSize error");

  1309.         printError(osErr);

  1310.         goto error;

  1311.     }

  1312. 

  1313.     osErr = AudioObjectGetPropertyData(fPluginID, &pluginAOPA, sizeof(aggDeviceDict), &aggDeviceDict, &outDataSize, outAggregateDevice);

  1314.     if (osErr != noErr) {

  1315.         jack_error("JackCoreAudioAdapter::CreateAggregateDevice : AudioObjectGetPropertyData error");

  1316.         printError(osErr);

  1317.         goto error;

  1318.     }

  1319. 

  1320.     // pause for a bit to make sure that everything completed correctly

  1321.     // this is to work around a bug in the HAL where a new aggregate device seems to disappear briefly after it is created

  1322.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  1323. 

  1324.     //-------------------------

  1325.     // Set the sub-device list

  1326.     //-------------------------

  1327. 

  1328.     pluginAOPA.mSelector = kAudioAggregateDevicePropertyFullSubDeviceList;

  1329.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  1330.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  1331.     outDataSize = sizeof(CFMutableArrayRef);

  1332.     osErr = AudioObjectSetPropertyData(*outAggregateDevice, &pluginAOPA, 0, NULL, outDataSize, &subDevicesArray);

  1333.     if (osErr != noErr) {

  1334.         jack_error("JackCoreAudioAdapter::CreateAggregateDevice : AudioObjectSetPropertyData for sub-device list error");

  1335.         printError(osErr);

  1336.         goto error;

  1337.     }

  1338. 

  1339.     // pause again to give the changes time to take effect

  1340.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  1341. 

  1342.     //-----------------------

  1343.     // Set the master device

  1344.     //-----------------------

  1345. 

  1346.     // set the master device manually (this is the device which will act as the master clock for the aggregate device)

  1347.     // pass in the UID of the device you want to use

  1348.     pluginAOPA.mSelector = kAudioAggregateDevicePropertyMasterSubDevice;

  1349.     pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;

  1350.     pluginAOPA.mElement = kAudioObjectPropertyElementMaster;

  1351.     outDataSize = sizeof(CFStringRef);

  1352.     osErr = AudioObjectSetPropertyData(*outAggregateDevice, &pluginAOPA, 0, NULL, outDataSize, &captureDeviceUID[0]);  // First apture is master...

  1353.     if (osErr != noErr) {

  1354.         jack_error("JackCoreAudioAdapter::CreateAggregateDevice : AudioObjectSetPropertyData for master device error");

  1355.         printError(osErr);

  1356.         goto error;

  1357.     }

  1358. 

  1359.     // pause again to give the changes time to take effect

  1360.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  1361. 

  1362.     // Prepare sub-devices for clock drift compensation

  1363.     // Workaround for bug in the HAL : until 10.6.2

  1364. 

  1365.     if (fClockDriftCompensate) {

  1366.         if (need_clock_drift_compensation) {

  1367.             jack_info("Clock drift compensation activated...");

  1368. 

  1369.             // Get the property data size

  1370.             osErr = AudioObjectGetPropertyDataSize(*outAggregateDevice, &theAddressOwned, theQualifierDataSize, theQualifierData, &outSize);

  1371.             if (osErr != noErr) {

  1372.                 jack_error("JackCoreAudioAdapter::CreateAggregateDevice kAudioObjectPropertyOwnedObjects error");

  1373.                 printError(osErr);

  1374.             }

  1375. 

  1376.             //	Calculate the number of object IDs

  1377.             subDevicesNum = outSize / sizeof(AudioObjectID);

  1378.             jack_info("JackCoreAudioAdapter::CreateAggregateDevice clock drift compensation, number of sub-devices = %d", subDevicesNum);

  1379.             AudioObjectID subDevices[subDevicesNum];

  1380.             outSize = sizeof(subDevices);

  1381. 

  1382.             osErr = AudioObjectGetPropertyData(*outAggregateDevice, &theAddressOwned, theQualifierDataSize, theQualifierData, &outSize, subDevices);

  1383.             if (osErr != noErr) {

  1384.                 jack_error("JackCoreAudioAdapter::CreateAggregateDevice kAudioObjectPropertyOwnedObjects error");

  1385.                 printError(osErr);

  1386.             }

  1387. 

  1388.             // Set kAudioSubDevicePropertyDriftCompensation property...

  1389.             for (UInt32 index = 0; index < subDevicesNum; ++index) {

  1390.                 UInt32 theDriftCompensationValue = 1;

  1391.                 osErr = AudioObjectSetPropertyData(subDevices[index], &theAddressDrift, 0, NULL, sizeof(UInt32), &theDriftCompensationValue);

  1392.                 if (osErr != noErr) {

  1393.                     jack_error("JackCoreAudioAdapter::CreateAggregateDevice kAudioSubDevicePropertyDriftCompensation error");

  1394.                     printError(osErr);

  1395.                 }

  1396.             }

  1397.         } else {

  1398.             jack_info("Clock drift compensation was asked but is not needed (devices use the same clock domain)");

  1399.         }

  1400.     }

  1401. 

  1402.     // pause again to give the changes time to take effect

  1403.     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

  1404. 

  1405.     //----------

  1406.     // Clean up

  1407.     //----------

  1408. 

  1409.     // release the private AD key

  1410.     CFRelease(AggregateDeviceNumberRef);

  1411. 

  1412.     // release the CF objects we have created - we don't need them any more

  1413.     CFRelease(aggDeviceDict);

  1414.     CFRelease(subDevicesArray);

  1415. 

  1416.     if (subDevicesArrayClock)

  1417.         CFRelease(subDevicesArrayClock);

  1418. 

  1419.     // release the device UID

  1420.     for (UInt32 i = 0; i < captureDeviceUID.size(); i++) {

  1421.         CFRelease(captureDeviceUID[i]);

  1422.     }

  1423. 

  1424.     for (UInt32 i = 0; i < playbackDeviceUID.size(); i++) {

  1425.         CFRelease(playbackDeviceUID[i]);

  1426.     }

  1427. 

  1428.     jack_log("New aggregate device %ld", *outAggregateDevice);

  1429.     return noErr;

  1430. 

  1431. error:

  1432.     DestroyAggregateDevice();

  1433.     return -1;

  1434. }

  1435. 

  1436. 

  1437. bool JackCoreAudioAdapter::IsAggregateDevice(AudioDeviceID device)

  1438. {

  1439.     OSStatus err = noErr;

  1440.     AudioObjectID sub_device[32];

  1441.     UInt32 outSize = sizeof(sub_device);

  1442.     err = AudioDeviceGetProperty(device, 0, kAudioDeviceSectionGlobal, kAudioAggregateDevicePropertyActiveSubDeviceList, &outSize, sub_device);

  1443. 

  1444.     if (err != noErr) {

  1445.         jack_log("Device does not have subdevices");

  1446.         return false;

  1447.     } else {

  1448.         int num_devices = outSize / sizeof(AudioObjectID);

  1449.         jack_log("Device does has %d subdevices", num_devices);

  1450.         return true;

  1451.     }

  1452. }

  1453. 

  1454. void JackCoreAudioAdapter::CloseAUHAL()

  1455. {

  1456.     AudioUnitUninitialize(fAUHAL);

  1457.     CloseComponent(fAUHAL);

  1458. }

  1459. 

  1460. int JackCoreAudioAdapter::Open()

  1461. {

  1462.     return (AudioOutputUnitStart(fAUHAL) != noErr)  ? -1 : 0;

  1463. }

  1464. 

  1465. int JackCoreAudioAdapter::Close()

  1466. {

  1467. #ifdef JACK_MONITOR

  1468.     fTable.Save(fHostBufferSize, fHostSampleRate, fAdaptedSampleRate, fAdaptedBufferSize);

  1469. #endif

  1470.     AudioOutputUnitStop(fAUHAL);

  1471.     DisposeBuffers();

  1472.     CloseAUHAL();

  1473.     RemoveListeners();

  1474.     if (fPluginID > 0)

  1475.         DestroyAggregateDevice();

  1476.     return 0;

  1477. }

  1478. 

  1479. int JackCoreAudioAdapter::SetSampleRate ( jack_nframes_t sample_rate ) {

  1480.     JackAudioAdapterInterface::SetHostSampleRate ( sample_rate );

  1481.     Close();

  1482.     return Open();

  1483. }

  1484. 

  1485. int JackCoreAudioAdapter::SetBufferSize ( jack_nframes_t buffer_size ) {

  1486.     JackAudioAdapterInterface::SetHostBufferSize ( buffer_size );

  1487.     Close();

  1488.     return Open();

  1489. }

  1490. 

  1491. } // namespace

  1492. 

  1493. #ifdef __cplusplus

  1494. extern "C"

  1495. {

  1496. #endif

  1497. 

  1498.    SERVER_EXPORT jack_driver_desc_t* jack_get_descriptor()

  1499.    {

  1500.         jack_driver_desc_t * desc;

  1501.         jack_driver_desc_filler_t filler;

  1502.         jack_driver_param_value_t value;

  1503. 

  1504.         desc = jack_driver_descriptor_construct("audioadapter", "netjack audio <==> net backend adapter", &filler);

  1505. 

  1506.         value.i = -1;

  1507.         jack_driver_descriptor_add_parameter(desc, &filler, "channels", 'c', JackDriverParamInt, &value, NULL, "Maximum number of channels", "Maximum number of channels. If -1, max possible number of channels will be used");

  1508.         jack_driver_descriptor_add_parameter(desc, &filler, "inchannels", 'i', JackDriverParamInt, &value, NULL, "Maximum number of input channels", "Maximum number of input channels. If -1, max possible number of input channels will be used");

  1509.         jack_driver_descriptor_add_parameter(desc, &filler, "outchannels", 'o', JackDriverParamInt, &value, NULL, "Maximum number of output channels", "Maximum number of output channels. If -1, max possible number of output channels will be used");

  1510. 

  1511.         value.str[0] = 0;

  1512.         jack_driver_descriptor_add_parameter(desc, &filler, "capture", 'C', JackDriverParamString, &value, NULL, "Input CoreAudio device name", NULL);

  1513.         jack_driver_descriptor_add_parameter(desc, &filler, "playback", 'P', JackDriverParamString, &value, NULL, "Output CoreAudio device name", NULL);

  1514. 

  1515.         value.ui = 44100U;

  1516.         jack_driver_descriptor_add_parameter(desc, &filler, "rate", 'r', JackDriverParamUInt, &value, NULL, "Sample rate", NULL);

  1517. 

  1518.         value.ui = 512U;

  1519.         jack_driver_descriptor_add_parameter(desc, &filler, "period", 'p', JackDriverParamUInt, &value, NULL, "Frames per period", NULL);

  1520. 

  1521.         value.i = TRUE;

  1522.         jack_driver_descriptor_add_parameter(desc, &filler, "duplex", 'D', JackDriverParamBool, &value, NULL, "Provide both capture and playback ports", NULL);

  1523. 

  1524.         value.str[0] = 0;

  1525.         jack_driver_descriptor_add_parameter(desc, &filler, "device", 'd', JackDriverParamString, &value, NULL, "CoreAudio device name", NULL);

  1526. 

  1527.         value.i = TRUE;

  1528.         jack_driver_descriptor_add_parameter(desc, &filler, "list-devices", 'l', JackDriverParamBool, &value, NULL, "Display available CoreAudio devices", NULL);

  1529. 

  1530.         value.ui = 0;

  1531.         jack_driver_descriptor_add_parameter(desc, &filler, "quality", 'q', JackDriverParamInt, &value, NULL, "Resample algorithm quality (0 - 4)", NULL);

  1532. 

  1533.         value.ui = 32768;

  1534.         jack_driver_descriptor_add_parameter(desc, &filler, "ring-buffer", 'g', JackDriverParamInt, &value, NULL, "Fixed ringbuffer size", "Fixed ringbuffer size (if not set => automatic adaptative)");

  1535. 

  1536.         value.i = FALSE;

  1537.         jack_driver_descriptor_add_parameter(desc, &filler, "clock-drift", 's', JackDriverParamBool, &value, NULL, "Clock drift compensation", "Whether to compensate clock drift in dynamically created aggregate device");

  1538. 

  1539.         return desc;

  1540.     }

  1541. 

  1542. 

  1543. #ifdef __cplusplus

  1544. }

  1545. #endif