JackCoreAudioDriver.cpp 61.2 KB
Newer Older
sletz's avatar
sletz committed
1
/*
sletz's avatar
sletz committed
2
Copyright (C) 2004-2008 Grame
sletz's avatar
sletz committed
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include "JackCoreAudioDriver.h"
#include "JackEngineControl.h"
#include "JackMachThread.h"
#include "JackGraphManager.h"
#include "JackError.h"
#include "JackClientControl.h"
#include "JackDriverLoader.h"
#include "JackGlobals.h"
28
#include "JackTools.h"
29
#include "JackCompilerDeps.h"
sletz's avatar
sletz committed
30

sletz's avatar
sletz committed
31
#include <iostream>
sletz's avatar
sletz committed
32
#include <CoreServices/CoreServices.h>
sletz's avatar
sletz committed
33
34
35
36

namespace Jack
{

37
38
39
40
41
42
43
44
45
static void Print4CharCode(char* msg, long c)
{
    UInt32 __4CC_number = (c);
    char __4CC_string[5];
    *((SInt32*)__4CC_string) = EndianU32_NtoB(__4CC_number);		
    __4CC_string[4] = 0;
    jack_log("%s'%s'", (msg), __4CC_string);
}

sletz's avatar
sletz committed
46
47
48
49
static void printError(OSStatus err)
{
    switch (err) {
        case kAudioHardwareNoError:
sletz's avatar
sletz committed
50
            jack_log("error code : kAudioHardwareNoError");
sletz's avatar
sletz committed
51
52
            break;
        case kAudioConverterErr_FormatNotSupported:
sletz's avatar
sletz committed
53
            jack_log("error code : kAudioConverterErr_FormatNotSupported");
sletz's avatar
sletz committed
54
55
            break;
        case kAudioConverterErr_OperationNotSupported:
sletz's avatar
sletz committed
56
            jack_log("error code : kAudioConverterErr_OperationNotSupported");
sletz's avatar
sletz committed
57
58
            break;
        case kAudioConverterErr_PropertyNotSupported:
sletz's avatar
sletz committed
59
            jack_log("error code : kAudioConverterErr_PropertyNotSupported");
sletz's avatar
sletz committed
60
61
            break;
        case kAudioConverterErr_InvalidInputSize:
sletz's avatar
sletz committed
62
            jack_log("error code : kAudioConverterErr_InvalidInputSize");
sletz's avatar
sletz committed
63
64
            break;
        case kAudioConverterErr_InvalidOutputSize:
sletz's avatar
sletz committed
65
            jack_log("error code : kAudioConverterErr_InvalidOutputSize");
sletz's avatar
sletz committed
66
67
            break;
        case kAudioConverterErr_UnspecifiedError:
sletz's avatar
sletz committed
68
            jack_log("error code : kAudioConverterErr_UnspecifiedError");
sletz's avatar
sletz committed
69
70
            break;
        case kAudioConverterErr_BadPropertySizeError:
sletz's avatar
sletz committed
71
            jack_log("error code : kAudioConverterErr_BadPropertySizeError");
sletz's avatar
sletz committed
72
73
            break;
        case kAudioConverterErr_RequiresPacketDescriptionsError:
sletz's avatar
sletz committed
74
            jack_log("error code : kAudioConverterErr_RequiresPacketDescriptionsError");
sletz's avatar
sletz committed
75
76
            break;
        case kAudioConverterErr_InputSampleRateOutOfRange:
sletz's avatar
sletz committed
77
            jack_log("error code : kAudioConverterErr_InputSampleRateOutOfRange");
sletz's avatar
sletz committed
78
79
            break;
        case kAudioConverterErr_OutputSampleRateOutOfRange:
sletz's avatar
sletz committed
80
            jack_log("error code : kAudioConverterErr_OutputSampleRateOutOfRange");
sletz's avatar
sletz committed
81
82
            break;
        case kAudioHardwareNotRunningError:
sletz's avatar
sletz committed
83
            jack_log("error code : kAudioHardwareNotRunningError");
sletz's avatar
sletz committed
84
85
            break;
        case kAudioHardwareUnknownPropertyError:
sletz's avatar
sletz committed
86
            jack_log("error code : kAudioHardwareUnknownPropertyError");
sletz's avatar
sletz committed
87
88
            break;
        case kAudioHardwareIllegalOperationError:
sletz's avatar
sletz committed
89
            jack_log("error code : kAudioHardwareIllegalOperationError");
sletz's avatar
sletz committed
90
91
            break;
        case kAudioHardwareBadDeviceError:
sletz's avatar
sletz committed
92
            jack_log("error code : kAudioHardwareBadDeviceError");
sletz's avatar
sletz committed
93
94
            break;
        case kAudioHardwareBadStreamError:
sletz's avatar
sletz committed
95
            jack_log("error code : kAudioHardwareBadStreamError");
sletz's avatar
sletz committed
96
97
            break;
        case kAudioDeviceUnsupportedFormatError:
sletz's avatar
sletz committed
98
            jack_log("error code : kAudioDeviceUnsupportedFormatError");
sletz's avatar
sletz committed
99
100
            break;
        case kAudioDevicePermissionsError:
sletz's avatar
sletz committed
101
            jack_log("error code : kAudioDevicePermissionsError");
102
            break;
sletz's avatar
sletz committed
103
        case kAudioHardwareBadObjectError:
sletz's avatar
sletz committed
104
            jack_log("error code : kAudioHardwareBadObjectError");
105
            break;
sletz's avatar
sletz committed
106
        case kAudioHardwareUnsupportedOperationError:
sletz's avatar
sletz committed
107
            jack_log("error code : kAudioHardwareUnsupportedOperationError");
sletz's avatar
sletz committed
108
109
            break;
        default:
110
            Print4CharCode("error code : unknown", err);
sletz's avatar
sletz committed
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
            break;
    }
}

static OSStatus DisplayDeviceNames()
{
    UInt32 size;
    Boolean isWritable;
    int i, deviceNum;
    OSStatus err;
    CFStringRef UIname;

    err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices, &size, &isWritable);
    if (err != noErr)
        return err;

    deviceNum = size / sizeof(AudioDeviceID);
    AudioDeviceID devices[deviceNum];

    err = AudioHardwareGetProperty(kAudioHardwarePropertyDevices, &size, devices);
    if (err != noErr)
        return err;

    for (i = 0; i < deviceNum; i++) {
        char device_name[256];
        char internal_name[256];

        size = sizeof(CFStringRef);
        UIname = NULL;
        err = AudioDeviceGetProperty(devices[i], 0, false, kAudioDevicePropertyDeviceUID, &size, &UIname);
        if (err == noErr) {
            CFStringGetCString(UIname, internal_name, 256, CFStringGetSystemEncoding());
        } else {
            goto error;
        }

        size = 256;
        err = AudioDeviceGetProperty(devices[i], 0, false, kAudioDevicePropertyDeviceName, &size, device_name);
        if (err != noErr)
            return err;

sletz's avatar
sletz committed
152
        jack_info("Device name = \'%s\', internal_name = \'%s\' (to be used as -C, -P, or -d parameter)", device_name, internal_name);
sletz's avatar
sletz committed
153
154
155
156
157
158
159
160
161
162
    }

    return noErr;

error:
    if (UIname != NULL)
        CFRelease(UIname);
    return err;
}

163
164
165
166
167
168
169
170
static CFStringRef GetDeviceName(AudioDeviceID id)
{
    UInt32 size = sizeof(CFStringRef);
    CFStringRef UIname;
    OSStatus err = AudioDeviceGetProperty(id, 0, false, kAudioDevicePropertyDeviceUID, &size, &UIname);
    return (err == noErr) ? UIname : NULL;
}

sletz's avatar
sletz committed
171
172
173
174
175
176
177
OSStatus JackCoreAudioDriver::Render(void *inRefCon,
                                     AudioUnitRenderActionFlags *ioActionFlags,
                                     const AudioTimeStamp *inTimeStamp,
                                     UInt32 inBusNumber,
                                     UInt32 inNumberFrames,
                                     AudioBufferList *ioData)
{
sletz's avatar
sletz committed
178
179
180
181
    JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inRefCon;
    driver->fActionFags = ioActionFlags;
    driver->fCurrentTime = (AudioTimeStamp *)inTimeStamp;
    driver->fDriverOutputData = ioData;
sletz's avatar
sletz committed
182
    driver->CycleTakeBeginTime();
sletz's avatar
sletz committed
183
184
185
186
187
    return driver->Process();
}

int JackCoreAudioDriver::Read()
{
sletz's avatar
sletz committed
188
    AudioUnitRender(fAUHAL, fActionFags, fCurrentTime, 1, fEngineControl->fBufferSize, fJackInputData);
sletz's avatar
sletz committed
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
    return 0;
}

int JackCoreAudioDriver::Write()
{
    for (int i = 0; i < fPlaybackChannels; i++) {
        if (fGraphManager->GetConnectionsNum(fPlaybackPortList[i]) > 0) {
            float* buffer = GetOutputBuffer(i);
            int size = sizeof(float) * fEngineControl->fBufferSize;
            memcpy((float*)fDriverOutputData->mBuffers[i].mData, buffer, size);
            // Monitor ports
            if (fWithMonitorPorts && fGraphManager->GetConnectionsNum(fMonitorPortList[i]) > 0)
                memcpy(GetMonitorBuffer(i), buffer, size);
        } else {
            memset((float*)fDriverOutputData->mBuffers[i].mData, 0, sizeof(float) * fEngineControl->fBufferSize);
        }
    }
    return 0;
}

// Will run only once
OSStatus JackCoreAudioDriver::MeasureCallback(AudioDeviceID inDevice,
        const AudioTimeStamp* inNow,
        const AudioBufferList* inInputData,
        const AudioTimeStamp* inInputTime,
        AudioBufferList* outOutputData,
        const AudioTimeStamp* inOutputTime,
        void* inClientData)
{
    JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inClientData;
    AudioDeviceStop(driver->fDeviceID, MeasureCallback);
220
    
sletz's avatar
sletz committed
221
    jack_log("JackCoreAudioDriver::MeasureCallback called");
sletz's avatar
sletz committed
222
    JackMachThread::GetParams(pthread_self(), &driver->fEngineControl->fPeriod, &driver->fEngineControl->fComputation, &driver->fEngineControl->fConstraint);
223
    
224
225
226
227
228
    if (driver->fComputationGrain > 0) {
        jack_log("JackCoreAudioDriver::MeasureCallback : RT thread computation setup to %ld percent of period", int(driver->fComputationGrain * 100));
        driver->fEngineControl->fComputation = driver->fEngineControl->fPeriod * driver->fComputationGrain;
    }
    
sletz's avatar
sletz committed
229
230
    // Setup threadded based log function
    set_threaded_log_function();
sletz's avatar
sletz committed
231
232
233
    return noErr;
}

234
235
236
237
238
239
OSStatus JackCoreAudioDriver::SRNotificationCallback(AudioDeviceID inDevice,
        UInt32 inChannel,
        Boolean	isInput,
        AudioDevicePropertyID inPropertyID,
        void* inClientData)
{
sletz's avatar
sletz committed
240
241
242
243
244
    JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inClientData;

    switch (inPropertyID) {

        case kAudioDevicePropertyNominalSampleRate: {
sletz's avatar
sletz committed
245
            jack_log("JackCoreAudioDriver::SRNotificationCallback kAudioDevicePropertyNominalSampleRate");
sletz's avatar
sletz committed
246
247
248
249
250
251
            driver->fState = true;
            break;
        }
    }

    return noErr;
252
253
}

254
255
// A better implementation would try to recover in case of hardware device change (see HALLAB HLFilePlayerWindowControllerAudioDevicePropertyListenerProc code)

sletz's avatar
sletz committed
256
257
258
259
260
261
262
OSStatus JackCoreAudioDriver::DeviceNotificationCallback(AudioDeviceID inDevice,
        UInt32 inChannel,
        Boolean	isInput,
        AudioDevicePropertyID inPropertyID,
        void* inClientData)
{
    JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inClientData;
sletz's avatar
sletz committed
263
         
sletz's avatar
sletz committed
264
265
    switch (inPropertyID) {

sletz's avatar
sletz committed
266
        case kAudioDeviceProcessorOverload: {
267
            jack_error("JackCoreAudioDriver::DeviceNotificationCallback kAudioDeviceProcessorOverload");
268
            jack_time_t cur_time = GetMicroSeconds();
sletz's avatar
sletz committed
269
            driver->NotifyXRun(cur_time, float(cur_time - driver->fBeginDateUst));   // Better this value than nothing... 
sletz's avatar
sletz committed
270
            break;
sletz's avatar
sletz committed
271
		}
sletz's avatar
sletz committed
272

sletz's avatar
sletz committed
273
        case kAudioDevicePropertyStreamConfiguration: {
274
275
276
            jack_error("Cannot handle kAudioDevicePropertyStreamConfiguration : server will quit...");
            driver->NotifyFailure(JackBackendError, "CoreAudio device stream configuration has changed, backend stopped.");
            kill(JackTools::GetPID(), SIGINT);
277
            return kAudioHardwareUnsupportedOperationError;
sletz's avatar
sletz committed
278
		}
279
            
sletz's avatar
sletz committed
280
		case kAudioDevicePropertyNominalSampleRate: {
281
282
283
            jack_error("Cannot handle kAudioDevicePropertyNominalSampleRate : server will quit...");
            driver->NotifyFailure(JackBackendError, "CoreAudio device sampling rate has changed, backend stopped.");
            kill(JackTools::GetPID(), SIGINT);
284
            return kAudioHardwareUnsupportedOperationError;
sletz's avatar
sletz committed
285
		}
286
287
          
        /*
sletz's avatar
sletz committed
288
289
290
291
292
293
294
295
        case kAudioDevicePropertyNominalSampleRate: {

            UInt32 outSize = sizeof(Float64);
            Float64 sampleRate;
            int in_nChannels = 0;
            int out_nChannels = 0;
            char capture_driver_name[256];
            char playback_driver_name[256];
sletz's avatar
sletz committed
296
            CFStringRef ref;
297
     
sletz's avatar
sletz committed
298
299
300
301
302
303
304
305
306
307
            // Stop and restart
            driver->Stop();
            driver->RemoveListeners();
            driver->CloseAUHAL();

            OSStatus err = AudioDeviceGetProperty(driver->fDeviceID, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyNominalSampleRate, &outSize, &sampleRate);
            if (err != noErr) {
                jack_error("Cannot get current sample rate");
                printError(err);
            }
sletz's avatar
sletz committed
308
            jack_log("JackCoreAudioDriver::DeviceNotificationCallback kAudioDevicePropertyNominalSampleRate %ld", long(sampleRate));
sletz's avatar
sletz committed
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336

            if (driver->SetupDevices(driver->fCaptureUID, driver->fPlaybackUID, capture_driver_name, playback_driver_name) < 0)
                return -1;

            if (driver->SetupChannels(driver->fCapturing, driver->fPlaying, driver->fInChannels, driver->fOutChannels, in_nChannels, out_nChannels, false) < 0)
                return -1;

            if (driver->SetupBufferSizeAndSampleRate(driver->fEngineControl->fBufferSize, sampleRate)  < 0)
                return -1;

            if (driver->OpenAUHAL(driver->fCapturing,
                                  driver->fPlaying,
                                  driver->fInChannels,
                                  driver->fOutChannels,
                                  in_nChannels,
                                  out_nChannels,
                                  driver->fEngineControl->fBufferSize,
                                  sampleRate,
                                  false) < 0)
                goto error;

            if (driver->AddListeners() < 0)
                goto error;

            driver->Start();

            // Send notification to be used in JackPilot or JackRouter plugin
            jack_error("Device restart...");
sletz's avatar
sletz committed
337
            ref = CFStringCreateWithCString(NULL, driver->fEngineControl->fServerName, kCFStringEncodingMacRoman);
sletz's avatar
sletz committed
338
339
340
341
342
343
344
345
346
347
348
            CFNotificationCenterPostNotificationWithOptions(CFNotificationCenterGetDistributedCenter(),
                    CFSTR("com.grame.jackserver.restart"),
                    ref,
                    NULL,
                    kCFNotificationDeliverImmediately | kCFNotificationPostToAllSessions);
            CFRelease(ref);
            return noErr;
error:
            driver->CloseAUHAL();
            break;
        }
349
        */
sletz's avatar
sletz committed
350
    }
sletz's avatar
sletz committed
351
352
353
354
355
356
357
358
359
360
361
362
363
364
    return noErr;
}

OSStatus JackCoreAudioDriver::GetDeviceIDFromUID(const char* UID, AudioDeviceID* id)
{
    UInt32 size = sizeof(AudioValueTranslation);
    CFStringRef inIUD = CFStringCreateWithCString(NULL, UID, CFStringGetSystemEncoding());
    AudioValueTranslation value = { &inIUD, sizeof(CFStringRef), id, sizeof(AudioDeviceID) };

    if (inIUD == NULL) {
        return kAudioHardwareUnspecifiedError;
    } else {
        OSStatus res = AudioHardwareGetProperty(kAudioHardwarePropertyDeviceForUID, &size, &value);
        CFRelease(inIUD);
365
        jack_log("GetDeviceIDFromUID %s %ld", UID, *id);
sletz's avatar
sletz committed
366
367
368
369
370
371
372
373
374
375
376
        return (*id == kAudioDeviceUnknown) ? kAudioHardwareBadDeviceError : res;
    }
}

OSStatus JackCoreAudioDriver::GetDefaultDevice(AudioDeviceID* id)
{
    OSStatus res;
    UInt32 theSize = sizeof(UInt32);
    AudioDeviceID inDefault;
    AudioDeviceID outDefault;

sletz's avatar
Cleanup    
sletz committed
377
    if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &theSize, &inDefault)) != noErr)
sletz's avatar
sletz committed
378
379
        return res;

sletz's avatar
Cleanup    
sletz committed
380
    if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &theSize, &outDefault)) != noErr)
sletz's avatar
sletz committed
381
382
        return res;

sletz's avatar
sletz committed
383
    jack_log("GetDefaultDevice: input = %ld output = %ld", inDefault, outDefault);
sletz's avatar
sletz committed
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400

    // Get the device only if default input and ouput are the same
    if (inDefault == outDefault) {
        *id = inDefault;
        return noErr;
    } else {
        jack_error("Default input and output devices are not the same !!");
        return kAudioHardwareBadDeviceError;
    }
}

OSStatus JackCoreAudioDriver::GetDefaultInputDevice(AudioDeviceID* id)
{
    OSStatus res;
    UInt32 theSize = sizeof(UInt32);
    AudioDeviceID inDefault;

sletz's avatar
Cleanup    
sletz committed
401
    if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &theSize, &inDefault)) != noErr)
sletz's avatar
sletz committed
402
403
        return res;

sletz's avatar
sletz committed
404
    jack_log("GetDefaultInputDevice: input = %ld ", inDefault);
sletz's avatar
sletz committed
405
406
407
408
409
410
411
412
413
414
    *id = inDefault;
    return noErr;
}

OSStatus JackCoreAudioDriver::GetDefaultOutputDevice(AudioDeviceID* id)
{
    OSStatus res;
    UInt32 theSize = sizeof(UInt32);
    AudioDeviceID outDefault;

sletz's avatar
Cleanup    
sletz committed
415
    if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &theSize, &outDefault)) != noErr)
sletz's avatar
sletz committed
416
417
        return res;

sletz's avatar
sletz committed
418
    jack_log("GetDefaultOutputDevice: output = %ld", outDefault);
sletz's avatar
sletz committed
419
420
421
422
423
424
425
426
427
428
    *id = outDefault;
    return noErr;
}

OSStatus JackCoreAudioDriver::GetDeviceNameFromID(AudioDeviceID id, char* name)
{
    UInt32 size = 256;
    return AudioDeviceGetProperty(id, 0, false, kAudioDevicePropertyDeviceName, &size, name);
}

429
OSStatus JackCoreAudioDriver::GetTotalChannels(AudioDeviceID device, int& channelCount, bool isInput)
sletz's avatar
sletz committed
430
{
431
    OSStatus err = noErr;
sletz's avatar
sletz committed
432
433
    UInt32	outSize;
    Boolean	outWritable;
434
    AudioBufferList* bufferList = 0;
sletz's avatar
sletz committed
435

436
    channelCount = 0;
sletz's avatar
sletz committed
437
438
439
440
441
    err = AudioDeviceGetPropertyInfo(device, 0, isInput, kAudioDevicePropertyStreamConfiguration, &outSize, &outWritable);
    if (err == noErr) {
        bufferList = (AudioBufferList*)malloc(outSize);
        err = AudioDeviceGetProperty(device, 0, isInput, kAudioDevicePropertyStreamConfiguration, &outSize, bufferList);
        if (err == noErr) {
442
            for (unsigned int i = 0; i < bufferList->mNumberBuffers; i++)
443
                channelCount += bufferList->mBuffers[i].mNumberChannels;
sletz's avatar
sletz committed
444
        }
sletz's avatar
sletz committed
445
446
447

        if (bufferList)
            free(bufferList);
sletz's avatar
sletz committed
448
449
450
451
452
    }

    return err;
}

sletz's avatar
sletz committed
453
JackCoreAudioDriver::JackCoreAudioDriver(const char* name, const char* alias, JackLockedEngine* engine, JackSynchro* table)
454
        : JackAudioDriver(name, alias, engine, table), fJackInputData(NULL), fDriverOutputData(NULL), fState(false), fIOUsage(1.f),fComputationGrain(-1.f)
sletz's avatar
Cleanup    
sletz committed
455
{}
sletz's avatar
sletz committed
456
457

JackCoreAudioDriver::~JackCoreAudioDriver()
sletz's avatar
Cleanup    
sletz committed
458
{}
459

460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
OSStatus JackCoreAudioDriver::CreateAggregateDevice(AudioDeviceID captureDeviceID, AudioDeviceID playbackDeviceID, AudioDeviceID* outAggregateDevice) 
{
    OSStatus osErr = noErr;
    UInt32 outSize;
    Boolean outWritable;

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

    osErr = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyPlugInForBundleID, &outSize, &outWritable);
    if (osErr != noErr) 
        return osErr;

    AudioValueTranslation pluginAVT;

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

    pluginAVT.mInputData = &inBundleRef;
    pluginAVT.mInputDataSize = sizeof(inBundleRef);
    pluginAVT.mOutputData = &pluginID;
    pluginAVT.mOutputDataSize = sizeof(pluginID);

    osErr = AudioHardwareGetProperty(kAudioHardwarePropertyPlugInForBundleID, &outSize, &pluginAVT);
    if (osErr != noErr) 
        return osErr;

    //-----------------------
    // Create a CFDictionary for our aggregate device
    //-----------------------

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

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

    // add the name of the device to the dictionary
    CFDictionaryAddValue(aggDeviceDict, CFSTR(kAudioAggregateDeviceNameKey), AggregateDeviceNameRef);

    // add our choice of UID for the aggregate device to the dictionary
    CFDictionaryAddValue(aggDeviceDict, CFSTR(kAudioAggregateDeviceUIDKey), AggregateDeviceUIDRef);

    //-------------------------------------------------
    // Create a CFMutableArray for our sub-device list
    //-------------------------------------------------
    
    CFStringRef captureDeviceUID = GetDeviceName(captureDeviceID);
    CFStringRef playbackDeviceUID = GetDeviceName(playbackDeviceID);
    
    if (captureDeviceUID == NULL || playbackDeviceUID == NULL)
        return -1;
  
    // we need to append the UID for each device to a CFMutableArray, so create one here
    CFMutableArrayRef subDevicesArray = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);

    // two sub-devices in this example, so append the sub-device's UID to the CFArray
    CFArrayAppendValue(subDevicesArray, captureDeviceUID);
    CFArrayAppendValue(subDevicesArray, playbackDeviceUID);

    //-----------------------------------------------------------------------
    // Feed the dictionary to the plugin, to create a blank aggregate device
    //-----------------------------------------------------------------------
 
    AudioObjectPropertyAddress pluginAOPA;
    pluginAOPA.mSelector = kAudioPlugInCreateAggregateDevice;
    pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;
    pluginAOPA.mElement = kAudioObjectPropertyElementMaster;
    UInt32 outDataSize;

    osErr = AudioObjectGetPropertyDataSize(pluginID, &pluginAOPA, 0, NULL, &outDataSize);
    if (osErr != noErr) 
        return osErr;

    osErr = AudioObjectGetPropertyData(pluginID, &pluginAOPA, sizeof(aggDeviceDict), &aggDeviceDict, &outDataSize, outAggregateDevice);
    if (osErr != noErr) 
        return osErr;

    // pause for a bit to make sure that everything completed correctly
    // this is to work around a bug in the HAL where a new aggregate device seems to disappear briefly after it is created
    CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

    //-------------------------
    // Set the sub-device list
    //-------------------------

    pluginAOPA.mSelector = kAudioAggregateDevicePropertyFullSubDeviceList;
    pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;
    pluginAOPA.mElement = kAudioObjectPropertyElementMaster;
    outDataSize = sizeof(CFMutableArrayRef);
    osErr = AudioObjectSetPropertyData(*outAggregateDevice, &pluginAOPA, 0, NULL, outDataSize, &subDevicesArray);
    if (osErr != noErr)
        return osErr;

    // pause again to give the changes time to take effect
    CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

    //-----------------------
    // Set the master device
    //-----------------------

    // set the master device manually (this is the device which will act as the master clock for the aggregate device)
    // pass in the UID of the device you want to use
    pluginAOPA.mSelector = kAudioAggregateDevicePropertyMasterSubDevice;
    pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;
    pluginAOPA.mElement = kAudioObjectPropertyElementMaster;
    outDataSize = sizeof(CFStringRef);
    osErr = AudioObjectSetPropertyData(*outAggregateDevice, &pluginAOPA, 0, NULL, outDataSize, &captureDeviceUID);  // capture is master...
    if (osErr != noErr) 
        return osErr;

    // pause again to give the changes time to take effect
    CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

    //----------
    // Clean up
    //----------

    // release the CF objects we have created - we don't need them any more
    CFRelease(aggDeviceDict);
    CFRelease(subDevicesArray);

    // release the device UID
    CFRelease(captureDeviceUID);
    CFRelease(playbackDeviceUID);
    
586
    jack_log("New aggregate device %ld", *outAggregateDevice);
587
588
589
    return noErr;
}

590
int JackCoreAudioDriver::SetupDevices(const char* capture_driver_uid, const char* playback_driver_uid, char* capture_driver_name, char* playback_driver_name)
sletz's avatar
sletz committed
591
{
sletz's avatar
sletz committed
592
    capture_driver_name[0] = 0;
sletz's avatar
sletz committed
593
    playback_driver_name[0] = 0;
sletz's avatar
sletz committed
594
595

    // Duplex
596
    if (strcmp(capture_driver_uid, "") != 0 && strcmp(playback_driver_uid, "") != 0) {
597
        jack_log("JackCoreAudioDriver::Open duplex");
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
        
        /*
        AudioDeviceID captureID, playbackID;
        if (GetDeviceIDFromUID(capture_driver_uid, &captureID) != noErr)
            return -1;
        if (GetDeviceIDFromUID(playback_driver_uid, &playbackID) != noErr) 
            return -1;
        if (CreateAggregateDevice(captureID, playbackID, &fDeviceID) != noErr)
            return -1;
        */
        
        // Same device for capture and playback...
        if (strcmp(capture_driver_uid, playback_driver_uid) == 0)  {
            
            if (GetDeviceIDFromUID(playback_driver_uid, &fDeviceID) != noErr) {
                jack_log("Will take default in/out");
                if (GetDefaultDevice(&fDeviceID) != noErr) {
                    jack_error("Cannot open default device");
                    return -1;
                }
            }
            if (GetDeviceNameFromID(fDeviceID, capture_driver_name) != noErr || GetDeviceNameFromID(fDeviceID, playback_driver_name) != noErr) {
                jack_error("Cannot get device name from device ID");
sletz's avatar
sletz committed
621
622
                return -1;
            }
623
624
625
626
627
628
629
630
631
632
633
            
        } else {
        
            // Creates agregate device
            AudioDeviceID captureID, playbackID;
            if (GetDeviceIDFromUID(capture_driver_uid, &captureID) != noErr)
                return -1;
            if (GetDeviceIDFromUID(playback_driver_uid, &playbackID) != noErr) 
                return -1;
            if (CreateAggregateDevice(captureID, playbackID, &fDeviceID) != noErr)
                return -1;
sletz's avatar
sletz committed
634
635
        }

sletz's avatar
sletz committed
636
        // Capture only
637
    } else if (strcmp(capture_driver_uid, "") != 0) {
638
        jack_log("JackCoreAudioDriver::Open capture only");
sletz's avatar
sletz committed
639
        if (GetDeviceIDFromUID(capture_driver_uid, &fDeviceID) != noErr) {
640
            jack_log("Will take default input");
sletz's avatar
sletz committed
641
642
643
644
645
646
647
648
649
650
            if (GetDefaultInputDevice(&fDeviceID) != noErr) {
                jack_error("Cannot open default device");
                return -1;
            }
        }
        if (GetDeviceNameFromID(fDeviceID, capture_driver_name) != noErr) {
            jack_error("Cannot get device name from device ID");
            return -1;
        }

sletz's avatar
sletz committed
651
        // Playback only
652
    } else if (strcmp(playback_driver_uid, "") != 0) {
653
        jack_log("JackCoreAudioDriver::Open playback only");
sletz's avatar
sletz committed
654
        if (GetDeviceIDFromUID(playback_driver_uid, &fDeviceID) != noErr) {
655
            jack_log("Will take default output");
sletz's avatar
sletz committed
656
657
658
659
660
661
662
663
664
665
            if (GetDefaultOutputDevice(&fDeviceID) != noErr) {
                jack_error("Cannot open default device");
                return -1;
            }
        }
        if (GetDeviceNameFromID(fDeviceID, playback_driver_name) != noErr) {
            jack_error("Cannot get device name from device ID");
            return -1;
        }

sletz's avatar
sletz committed
666
        // Use default driver in duplex mode
sletz's avatar
sletz committed
667
    } else {
668
        jack_log("JackCoreAudioDriver::Open default driver");
sletz's avatar
sletz committed
669
670
671
672
673
674
675
676
677
        if (GetDefaultDevice(&fDeviceID) != noErr) {
            jack_error("Cannot open default device");
            return -1;
        }
        if (GetDeviceNameFromID(fDeviceID, capture_driver_name) != noErr || GetDeviceNameFromID(fDeviceID, playback_driver_name) != noErr) {
            jack_error("Cannot get device name from device ID");
            return -1;
        }
    }
sletz's avatar
sletz committed
678
679

    return 0;
680
}
sletz's avatar
sletz committed
681

682
683
684
/*
Return the max possible input channels in in_nChannels and output channels in out_nChannels.
*/
sletz's avatar
Cleanup    
sletz committed
685
int JackCoreAudioDriver::SetupChannels(bool capturing, bool playing, int& inchannels, int& outchannels, int& in_nChannels, int& out_nChannels, bool strict)
686
{
sletz's avatar
sletz committed
687
688
689
    OSStatus err = noErr;

    if (capturing) {
690
        err = GetTotalChannels(fDeviceID, in_nChannels, true);
sletz's avatar
sletz committed
691
692
693
694
        if (err != noErr) {
            jack_error("Cannot get input channel number");
            printError(err);
            return -1;
695
696
        } else {
            jack_log("Max input channels : %d", in_nChannels);
sletz's avatar
sletz committed
697
698
699
700
        }
    }

    if (playing) {
701
        err = GetTotalChannels(fDeviceID, out_nChannels, false);
sletz's avatar
sletz committed
702
703
704
705
        if (err != noErr) {
            jack_error("Cannot get output channel number");
            printError(err);
            return -1;
706
707
        } else {
            jack_log("Max output channels : %d", out_nChannels);
sletz's avatar
sletz committed
708
709
710
711
712
        }
    }

    if (inchannels > in_nChannels) {
        jack_error("This device hasn't required input channels inchannels = %ld in_nChannels = %ld", inchannels, in_nChannels);
sletz's avatar
sletz committed
713
714
715
        if (strict)
            return -1;
    }
sletz's avatar
sletz committed
716
717
718

    if (outchannels > out_nChannels) {
        jack_error("This device hasn't required output channels outchannels = %ld out_nChannels = %ld", outchannels, out_nChannels);
719
        if (strict)
sletz's avatar
sletz committed
720
            return -1;
sletz's avatar
sletz committed
721
722
723
    }

    if (inchannels == 0) {
sletz's avatar
sletz committed
724
        jack_log("Setup max in channels = %ld", in_nChannels);
sletz's avatar
sletz committed
725
726
727
728
        inchannels = in_nChannels;
    }

    if (outchannels == 0) {
sletz's avatar
sletz committed
729
        jack_log("Setup max out channels = %ld", out_nChannels);
sletz's avatar
sletz committed
730
731
        outchannels = out_nChannels;
    }
sletz's avatar
sletz committed
732
733

    return 0;
734
}
sletz's avatar
sletz committed
735

sletz's avatar
sletz committed
736
int JackCoreAudioDriver::SetupBufferSizeAndSampleRate(jack_nframes_t buffer_size, jack_nframes_t samplerate)
737
{
sletz's avatar
sletz committed
738
    OSStatus err = noErr;
739
    UInt32 outSize;
sletz's avatar
sletz committed
740
741
742
    Float64 sampleRate;

    // Setting buffer size
sletz's avatar
sletz committed
743
    outSize = sizeof(UInt32);
sletz's avatar
sletz committed
744
    err = AudioDeviceSetProperty(fDeviceID, NULL, 0, false, kAudioDevicePropertyBufferFrameSize, outSize, &buffer_size);
sletz's avatar
sletz committed
745
    if (err != noErr) {
sletz's avatar
sletz committed
746
        jack_error("Cannot set buffer size %ld", buffer_size);
sletz's avatar
sletz committed
747
748
749
750
        printError(err);
        return -1;
    }

751
    // Get sample rate
sletz's avatar
sletz committed
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
    outSize =  sizeof(Float64);
    err = AudioDeviceGetProperty(fDeviceID, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyNominalSampleRate, &outSize, &sampleRate);
    if (err != noErr) {
        jack_error("Cannot get current sample rate");
        printError(err);
        return -1;
    }

    // If needed, set new sample rate
    if (samplerate != (jack_nframes_t)sampleRate) {
        sampleRate = (Float64)samplerate;

        // To get SR change notification
        err = AudioDeviceAddPropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, SRNotificationCallback, this);
        if (err != noErr) {
            jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyNominalSampleRate");
            printError(err);
            return -1;
        }
        err = AudioDeviceSetProperty(fDeviceID, NULL, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyNominalSampleRate, outSize, &sampleRate);
        if (err != noErr) {
            jack_error("Cannot set sample rate = %ld", samplerate);
            printError(err);
            return -1;
        }

        // Waiting for SR change notification
        int count = 0;
        while (!fState && count++ < 100) {
            usleep(100000);
sletz's avatar
sletz committed
782
            jack_log("Wait count = %ld", count);
sletz's avatar
sletz committed
783
784
785
786
787
788
789
        }

        // Remove SR change notification
        AudioDeviceRemovePropertyListener(fDeviceID, 0, true, kAudioDevicePropertyNominalSampleRate, SRNotificationCallback);
    }

    return 0;
790
}
791

sletz's avatar
sletz committed
792
793
794
795
796
797
int JackCoreAudioDriver::OpenAUHAL(bool capturing,
                                   bool playing,
                                   int inchannels,
                                   int outchannels,
                                   int in_nChannels,
                                   int out_nChannels,
sletz's avatar
sletz committed
798
                                   jack_nframes_t buffer_size,
sletz's avatar
sletz committed
799
800
                                   jack_nframes_t samplerate,
                                   bool strict)
801
{
sletz's avatar
sletz committed
802
    ComponentResult err1;
803
804
    UInt32 enableIO;
    AudioStreamBasicDescription srcFormat, dstFormat;
sletz's avatar
sletz committed
805

806
    jack_log("OpenAUHAL capturing = %ld playing = %ld inchannels = %ld outchannels = %ld in_nChannels = %ld out_nChannels = %ld ", capturing, playing, inchannels, outchannels, in_nChannels, out_nChannels);
sletz's avatar
sletz committed
807

808
809
810
811
812
    if (inchannels == 0 && outchannels == 0) {
        jack_error("No input and output channels...");
        return -1;
    }
         
sletz's avatar
sletz committed
813
    // AUHAL
sletz's avatar
sletz committed
814
815
816
817
818
819
820
    ComponentDescription cd = {kAudioUnitType_Output, kAudioUnitSubType_HALOutput, kAudioUnitManufacturer_Apple, 0, 0};
    Component HALOutput = FindNextComponent(NULL, &cd);

    err1 = OpenAComponent(HALOutput, &fAUHAL);
    if (err1 != noErr) {
        jack_error("Error calling OpenAComponent");
        printError(err1);
821
        return -1;
sletz's avatar
sletz committed
822
823
824
825
826
827
    }

    err1 = AudioUnitInitialize(fAUHAL);
    if (err1 != noErr) {
        jack_error("Cannot initialize AUHAL unit");
        printError(err1);
828
        return -1;
sletz's avatar
sletz committed
829
830
831
832
    }

    // Start I/O
    if (capturing && inchannels > 0) {
833
834
835
836
837
838
839
840
841
842
843
844
845
        enableIO = 1;
        jack_log("Setup AUHAL input on");
    } else {
        enableIO = 0;
        jack_log("Setup AUHAL input off");
    }
    
    err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, 1, &enableIO, sizeof(enableIO));
    if (err1 != noErr) {
        jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input");
        printError(err1);
        if (strict)
            return -1;
sletz's avatar
sletz committed
846
847
848
    }

    if (playing && outchannels > 0) {
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
        enableIO = 1;
        jack_log("Setup AUHAL output on");
    } else {
        enableIO = 0;
        jack_log("Setup AUHAL output off");
    }
    
    err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Output, 0, &enableIO, sizeof(enableIO));
    if (err1 != noErr) {
        jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_EnableIO,kAudioUnitScope_Output");
        printError(err1);
        if (strict)
            return -1;
    }
    
    AudioDeviceID currAudioDeviceID;
865
    UInt32 size = sizeof(AudioDeviceID);
866
867
868
869
870
871
872
873
    err1 = AudioUnitGetProperty(fAUHAL, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &currAudioDeviceID, &size);
    if (err1 != noErr) {
        jack_error("Error calling AudioUnitGetProperty - kAudioOutputUnitProperty_CurrentDevice");
        printError(err1);
        if (strict)
            return -1;
    } else {
        jack_log("AudioUnitGetPropertyCurrentDevice = %d", currAudioDeviceID);
sletz's avatar
sletz committed
874
875
876
877
878
879
880
    }

    // Setup up choosen device, in both input and output cases
    err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &fDeviceID, sizeof(AudioDeviceID));
    if (err1 != noErr) {
        jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_CurrentDevice");
        printError(err1);
881
        if (strict)
sletz's avatar
sletz committed
882
            return -1;
sletz's avatar
sletz committed
883
    }
884
885
886
887
888
889
890
891
892
893
    
    err1 = AudioUnitGetProperty(fAUHAL, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &currAudioDeviceID, &size);
    if (err1 != noErr) {
        jack_error("Error calling AudioUnitGetProperty - kAudioOutputUnitProperty_CurrentDevice");
        printError(err1);
        if (strict)
            return -1;
    } else {
        jack_log("AudioUnitGetPropertyCurrentDevice = %d", currAudioDeviceID);
    }
sletz's avatar
sletz committed
894
895
896

    // Set buffer size
    if (capturing && inchannels > 0) {
897
        err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, 1, (UInt32*)&buffer_size, sizeof(UInt32));
sletz's avatar
sletz committed
898
899
900
        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_MaximumFramesPerSlice");
            printError(err1);
901
            if (strict)
sletz's avatar
sletz committed
902
                return -1;
sletz's avatar
sletz committed
903
904
905
906
        }
    }

    if (playing && outchannels > 0) {
907
        err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, 0, (UInt32*)&buffer_size, sizeof(UInt32));
sletz's avatar
sletz committed
908
909
910
        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_MaximumFramesPerSlice");
            printError(err1);
sletz's avatar
sletz committed
911
912
            if (strict)
                return -1;
sletz's avatar
sletz committed
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
        }
    }

    // Setup channel map
    if (capturing && inchannels > 0 && inchannels < in_nChannels) {
        SInt32 chanArr[in_nChannels];
        for (int i = 0; i < in_nChannels; i++) {
            chanArr[i] = -1;
        }
        for (int i = 0; i < inchannels; i++) {
            chanArr[i] = i;
        }
        AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_ChannelMap , kAudioUnitScope_Input, 1, chanArr, sizeof(SInt32) * in_nChannels);
        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_ChannelMap 1");
            printError(err1);
        }
    }

    if (playing && outchannels > 0 && outchannels < out_nChannels) {
        SInt32 chanArr[out_nChannels];
        for (int i = 0;	i < out_nChannels; i++) {
            chanArr[i] = -1;
        }
        for (int i = 0; i < outchannels; i++) {
            chanArr[i] = i;
        }
        err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_ChannelMap, kAudioUnitScope_Output, 0, chanArr, sizeof(SInt32) * out_nChannels);
        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_ChannelMap 0");
            printError(err1);
        }
    }

    // Setup stream converters
sletz's avatar
sletz committed
948
    jack_log("Setup AUHAL input stream converter SR = %ld", samplerate);
sletz's avatar
sletz committed
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
    srcFormat.mSampleRate = samplerate;
    srcFormat.mFormatID = kAudioFormatLinearPCM;
    srcFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;
    srcFormat.mBytesPerPacket = sizeof(float);
    srcFormat.mFramesPerPacket = 1;
    srcFormat.mBytesPerFrame = sizeof(float);
    srcFormat.mChannelsPerFrame = outchannels;
    srcFormat.mBitsPerChannel = 32;

    err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &srcFormat, sizeof(AudioStreamBasicDescription));
    if (err1 != noErr) {
        jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_StreamFormat kAudioUnitScope_Input");
        printError(err1);
    }

sletz's avatar
sletz committed
964
    jack_log("Setup AUHAL output stream converter SR = %ld", samplerate);
sletz's avatar
sletz committed
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
    dstFormat.mSampleRate = samplerate;
    dstFormat.mFormatID = kAudioFormatLinearPCM;
    dstFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;
    dstFormat.mBytesPerPacket = sizeof(float);
    dstFormat.mFramesPerPacket = 1;
    dstFormat.mBytesPerFrame = sizeof(float);
    dstFormat.mChannelsPerFrame = inchannels;
    dstFormat.mBitsPerChannel = 32;

    err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 1, &dstFormat, sizeof(AudioStreamBasicDescription));
    if (err1 != noErr) {
        jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_StreamFormat kAudioUnitScope_Output");
        printError(err1);
    }

sletz's avatar
sletz committed
980
981
982
983
984
985
986
987
988
    // Setup callbacks
    if (inchannels > 0 && outchannels == 0) {
        AURenderCallbackStruct output;
        output.inputProc = Render;
        output.inputProcRefCon = this;
        err1 = AudioUnitSetProperty(fAUHAL, kAudioOutputUnitProperty_SetInputCallback, kAudioUnitScope_Global, 0, &output, sizeof(output));
        if (err1 != noErr) {
            jack_error("Error calling  AudioUnitSetProperty - kAudioUnitProperty_SetRenderCallback 1");
            printError(err1);
989
            return -1;
sletz's avatar
sletz committed
990
991
992
993
994
995
996
997
998
        }
    } else {
        AURenderCallbackStruct output;
        output.inputProc = Render;
        output.inputProcRefCon = this;
        err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, 0, &output, sizeof(output));
        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_SetRenderCallback 0");
            printError(err1);
999
            return -1;
sletz's avatar
sletz committed
1000
        }
For faster browsing, not all history is shown. View entire blame