JackCoreAudioDriver.cpp 68.4 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>
33
#include <CoreFoundation/CFNumber.h>
sletz's avatar
sletz committed
34
35
36
37

namespace Jack
{

sletz's avatar
sletz committed
38
static void Print4CharCode(const char* msg, long c)
39
40
41
42
43
44
45
46
{
    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);
}

47
48
49
50
51
52
53
54
55
56
57
58
59
60
static void PrintStreamDesc(AudioStreamBasicDescription *inDesc)
{
    jack_log("- - - - - - - - - - - - - - - - - - - -");
    jack_log("  Sample Rate:%f", inDesc->mSampleRate);
    jack_log("  Format ID:%.*s", (int) sizeof(inDesc->mFormatID), (char*)&inDesc->mFormatID);
    jack_log("  Format Flags:%lX", inDesc->mFormatFlags);
    jack_log("  Bytes per Packet:%ld", inDesc->mBytesPerPacket);
    jack_log("  Frames per Packet:%ld", inDesc->mFramesPerPacket);
    jack_log("  Bytes per Frame:%ld", inDesc->mBytesPerFrame);
    jack_log("  Channels per Frame:%ld", inDesc->mChannelsPerFrame);
    jack_log("  Bits per Channel:%ld", inDesc->mBitsPerChannel);
    jack_log("- - - - - - - - - - - - - - - - - - - -\n");
}

sletz's avatar
sletz committed
61
62
63
64
static void printError(OSStatus err)
{
    switch (err) {
        case kAudioHardwareNoError:
sletz's avatar
sletz committed
65
            jack_log("error code : kAudioHardwareNoError");
sletz's avatar
sletz committed
66
67
            break;
        case kAudioConverterErr_FormatNotSupported:
sletz's avatar
sletz committed
68
            jack_log("error code : kAudioConverterErr_FormatNotSupported");
sletz's avatar
sletz committed
69
70
            break;
        case kAudioConverterErr_OperationNotSupported:
sletz's avatar
sletz committed
71
            jack_log("error code : kAudioConverterErr_OperationNotSupported");
sletz's avatar
sletz committed
72
73
            break;
        case kAudioConverterErr_PropertyNotSupported:
sletz's avatar
sletz committed
74
            jack_log("error code : kAudioConverterErr_PropertyNotSupported");
sletz's avatar
sletz committed
75
76
            break;
        case kAudioConverterErr_InvalidInputSize:
sletz's avatar
sletz committed
77
            jack_log("error code : kAudioConverterErr_InvalidInputSize");
sletz's avatar
sletz committed
78
79
            break;
        case kAudioConverterErr_InvalidOutputSize:
sletz's avatar
sletz committed
80
            jack_log("error code : kAudioConverterErr_InvalidOutputSize");
sletz's avatar
sletz committed
81
82
            break;
        case kAudioConverterErr_UnspecifiedError:
sletz's avatar
sletz committed
83
            jack_log("error code : kAudioConverterErr_UnspecifiedError");
sletz's avatar
sletz committed
84
85
            break;
        case kAudioConverterErr_BadPropertySizeError:
sletz's avatar
sletz committed
86
            jack_log("error code : kAudioConverterErr_BadPropertySizeError");
sletz's avatar
sletz committed
87
88
            break;
        case kAudioConverterErr_RequiresPacketDescriptionsError:
sletz's avatar
sletz committed
89
            jack_log("error code : kAudioConverterErr_RequiresPacketDescriptionsError");
sletz's avatar
sletz committed
90
91
            break;
        case kAudioConverterErr_InputSampleRateOutOfRange:
sletz's avatar
sletz committed
92
            jack_log("error code : kAudioConverterErr_InputSampleRateOutOfRange");
sletz's avatar
sletz committed
93
94
            break;
        case kAudioConverterErr_OutputSampleRateOutOfRange:
sletz's avatar
sletz committed
95
            jack_log("error code : kAudioConverterErr_OutputSampleRateOutOfRange");
sletz's avatar
sletz committed
96
97
            break;
        case kAudioHardwareNotRunningError:
sletz's avatar
sletz committed
98
            jack_log("error code : kAudioHardwareNotRunningError");
sletz's avatar
sletz committed
99
100
            break;
        case kAudioHardwareUnknownPropertyError:
sletz's avatar
sletz committed
101
            jack_log("error code : kAudioHardwareUnknownPropertyError");
sletz's avatar
sletz committed
102
103
            break;
        case kAudioHardwareIllegalOperationError:
sletz's avatar
sletz committed
104
            jack_log("error code : kAudioHardwareIllegalOperationError");
sletz's avatar
sletz committed
105
106
            break;
        case kAudioHardwareBadDeviceError:
sletz's avatar
sletz committed
107
            jack_log("error code : kAudioHardwareBadDeviceError");
sletz's avatar
sletz committed
108
109
            break;
        case kAudioHardwareBadStreamError:
sletz's avatar
sletz committed
110
            jack_log("error code : kAudioHardwareBadStreamError");
sletz's avatar
sletz committed
111
112
            break;
        case kAudioDeviceUnsupportedFormatError:
sletz's avatar
sletz committed
113
            jack_log("error code : kAudioDeviceUnsupportedFormatError");
sletz's avatar
sletz committed
114
115
            break;
        case kAudioDevicePermissionsError:
sletz's avatar
sletz committed
116
            jack_log("error code : kAudioDevicePermissionsError");
117
            break;
sletz's avatar
sletz committed
118
        case kAudioHardwareBadObjectError:
sletz's avatar
sletz committed
119
            jack_log("error code : kAudioHardwareBadObjectError");
120
            break;
sletz's avatar
sletz committed
121
        case kAudioHardwareUnsupportedOperationError:
sletz's avatar
sletz committed
122
            jack_log("error code : kAudioHardwareUnsupportedOperationError");
sletz's avatar
sletz committed
123
124
            break;
        default:
125
            Print4CharCode("error code : unknown", err);
sletz's avatar
sletz committed
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
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
            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
167
        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
168
169
170
171
172
173
174
175
176
177
    }

    return noErr;

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

178
179
180
181
182
183
184
185
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
186
187
188
189
190
191
192
OSStatus JackCoreAudioDriver::Render(void *inRefCon,
                                     AudioUnitRenderActionFlags *ioActionFlags,
                                     const AudioTimeStamp *inTimeStamp,
                                     UInt32 inBusNumber,
                                     UInt32 inNumberFrames,
                                     AudioBufferList *ioData)
{
sletz's avatar
sletz committed
193
194
195
196
    JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inRefCon;
    driver->fActionFags = ioActionFlags;
    driver->fCurrentTime = (AudioTimeStamp *)inTimeStamp;
    driver->fDriverOutputData = ioData;
sletz's avatar
sletz committed
197
    driver->CycleTakeBeginTime();
sletz's avatar
sletz committed
198
199
200
201
202
    return driver->Process();
}

int JackCoreAudioDriver::Read()
{
sletz's avatar
sletz committed
203
    AudioUnitRender(fAUHAL, fActionFags, fCurrentTime, 1, fEngineControl->fBufferSize, fJackInputData);
sletz's avatar
sletz committed
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
    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);
235
    
sletz's avatar
sletz committed
236
    jack_log("JackCoreAudioDriver::MeasureCallback called");
sletz's avatar
sletz committed
237
    JackMachThread::GetParams(pthread_self(), &driver->fEngineControl->fPeriod, &driver->fEngineControl->fComputation, &driver->fEngineControl->fConstraint);
238
    
239
    if (driver->fComputationGrain > 0) {
240
        jack_log("JackCoreAudioDriver::MeasureCallback : RT thread computation setup to %d percent of period", int(driver->fComputationGrain * 100));
241
242
243
        driver->fEngineControl->fComputation = driver->fEngineControl->fPeriod * driver->fComputationGrain;
    }
    
244
245
246
    // Signal waiting start function...
    driver->fState = true;
    
sletz's avatar
sletz committed
247
248
    // Setup threadded based log function
    set_threaded_log_function();
sletz's avatar
sletz committed
249
250
251
    return noErr;
}

252
253
254
255
256
257
OSStatus JackCoreAudioDriver::SRNotificationCallback(AudioDeviceID inDevice,
        UInt32 inChannel,
        Boolean	isInput,
        AudioDevicePropertyID inPropertyID,
        void* inClientData)
{
sletz's avatar
sletz committed
258
259
260
261
262
    JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inClientData;

    switch (inPropertyID) {

        case kAudioDevicePropertyNominalSampleRate: {
sletz's avatar
sletz committed
263
            jack_log("JackCoreAudioDriver::SRNotificationCallback kAudioDevicePropertyNominalSampleRate");
sletz's avatar
sletz committed
264
265
266
267
268
269
            driver->fState = true;
            break;
        }
    }

    return noErr;
270
271
}

sletz's avatar
sletz committed
272
// A better implementation would possibly try to recover in case of hardware device change (see HALLAB HLFilePlayerWindowControllerAudioDevicePropertyListenerProc code)
sletz's avatar
sletz committed
273
274
275
276
277
278
279
OSStatus JackCoreAudioDriver::DeviceNotificationCallback(AudioDeviceID inDevice,
        UInt32 inChannel,
        Boolean	isInput,
        AudioDevicePropertyID inPropertyID,
        void* inClientData)
{
    JackCoreAudioDriver* driver = (JackCoreAudioDriver*)inClientData;
sletz's avatar
sletz committed
280
         
sletz's avatar
sletz committed
281
    switch (inPropertyID) {
282
        
sletz's avatar
sletz committed
283
        case kAudioDeviceProcessorOverload: {
284
            jack_error("JackCoreAudioDriver::DeviceNotificationCallback kAudioDeviceProcessorOverload");
285
            jack_time_t cur_time = GetMicroSeconds();
sletz's avatar
sletz committed
286
            driver->NotifyXRun(cur_time, float(cur_time - driver->fBeginDateUst));   // Better this value than nothing... 
sletz's avatar
sletz committed
287
            break;
288
289
        }
        
sletz's avatar
sletz committed
290
        case kAudioDevicePropertyStreamConfiguration: {
291
            jack_error("Cannot handle kAudioDevicePropertyStreamConfiguration : server will quit...");
292
            driver->NotifyFailure(JackBackendError, "Another application has changed the device configuration.");   // Message length limited to JACK_MESSAGE_SIZE
293
            driver->CloseAUHAL();
294
            kill(JackTools::GetPID(), SIGINT);
295
            return kAudioHardwareUnsupportedOperationError;
296
297
298
        }
        
        case kAudioDevicePropertyNominalSampleRate: {
299
            jack_error("Cannot handle kAudioDevicePropertyNominalSampleRate : server will quit...");
300
            driver->NotifyFailure(JackBackendError, "Another application has changed the sample rate.");            // Message length limited to JACK_MESSAGE_SIZE
301
            driver->CloseAUHAL();
302
            kill(JackTools::GetPID(), SIGINT);
303
            return kAudioHardwareUnsupportedOperationError;
sletz's avatar
sletz committed
304
		}
sletz's avatar
sletz committed
305
            
sletz's avatar
sletz committed
306
    }
sletz's avatar
sletz committed
307
308
309
310
311
312
313
314
315
316
317
318
319
320
    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);
321
        jack_log("GetDeviceIDFromUID %s %ld", UID, *id);
sletz's avatar
sletz committed
322
323
324
325
326
327
328
329
330
331
332
        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
333
    if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &theSize, &inDefault)) != noErr)
sletz's avatar
sletz committed
334
335
        return res;

sletz's avatar
Cleanup    
sletz committed
336
    if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &theSize, &outDefault)) != noErr)
sletz's avatar
sletz committed
337
338
        return res;

sletz's avatar
sletz committed
339
    jack_log("GetDefaultDevice: input = %ld output = %ld", inDefault, outDefault);
sletz's avatar
sletz committed
340

341
    // Get the device only if default input and output are the same
sletz's avatar
sletz committed
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
    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
357
    if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &theSize, &inDefault)) != noErr)
sletz's avatar
sletz committed
358
359
        return res;

sletz's avatar
sletz committed
360
    jack_log("GetDefaultInputDevice: input = %ld ", inDefault);
sletz's avatar
sletz committed
361
362
363
364
365
366
367
368
369
370
    *id = inDefault;
    return noErr;
}

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

sletz's avatar
Cleanup    
sletz committed
371
    if ((res = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &theSize, &outDefault)) != noErr)
sletz's avatar
sletz committed
372
373
        return res;

sletz's avatar
sletz committed
374
    jack_log("GetDefaultOutputDevice: output = %ld", outDefault);
sletz's avatar
sletz committed
375
376
377
378
379
380
381
382
383
384
    *id = outDefault;
    return noErr;
}

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

385
OSStatus JackCoreAudioDriver::GetTotalChannels(AudioDeviceID device, int& channelCount, bool isInput)
sletz's avatar
sletz committed
386
{
387
    OSStatus err = noErr;
sletz's avatar
sletz committed
388
389
    UInt32	outSize;
    Boolean	outWritable;
390
    AudioBufferList* bufferList = 0;
sletz's avatar
sletz committed
391

392
    channelCount = 0;
sletz's avatar
sletz committed
393
394
395
396
397
    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) {
398
            for (unsigned int i = 0; i < bufferList->mNumberBuffers; i++)
399
                channelCount += bufferList->mBuffers[i].mNumberChannels;
sletz's avatar
sletz committed
400
        }
sletz's avatar
sletz committed
401
402
403

        if (bufferList)
            free(bufferList);
sletz's avatar
sletz committed
404
405
406
407
408
    }

    return err;
}

sletz's avatar
sletz committed
409
JackCoreAudioDriver::JackCoreAudioDriver(const char* name, const char* alias, JackLockedEngine* engine, JackSynchro* table)
410
411
412
413
414
415
416
417
        : JackAudioDriver(name, alias, engine, table), 
        fJackInputData(NULL), 
        fDriverOutputData(NULL), 
        fPluginID(0), 
        fState(false), 
        fHogged(false),
        fIOUsage(1.f),
        fComputationGrain(-1.f)
sletz's avatar
Cleanup    
sletz committed
418
{}
sletz's avatar
sletz committed
419
420

JackCoreAudioDriver::~JackCoreAudioDriver()
sletz's avatar
Cleanup    
sletz committed
421
{}
422

423
424
425
426
427
428
429
430
OSStatus JackCoreAudioDriver::DestroyAggregateDevice() 
{
    OSStatus osErr = noErr;
    AudioObjectPropertyAddress pluginAOPA;
    pluginAOPA.mSelector = kAudioPlugInDestroyAggregateDevice;
    pluginAOPA.mScope = kAudioObjectPropertyScopeGlobal;
    pluginAOPA.mElement = kAudioObjectPropertyElementMaster;
    UInt32 outDataSize;
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
     
    if (fPluginID > 0)   {
      
        osErr = AudioObjectGetPropertyDataSize(fPluginID, &pluginAOPA, 0, NULL, &outDataSize);
        if (osErr != noErr) {
            jack_error("JackCoreAudioDriver::DestroyAggregateDevice : AudioObjectGetPropertyDataSize error");
            printError(osErr);
            return osErr;
        }
            
        osErr = AudioObjectGetPropertyData(fPluginID, &pluginAOPA, 0, NULL, &outDataSize, &fDeviceID);
        if (osErr != noErr) {
            jack_error("JackCoreAudioDriver::DestroyAggregateDevice : AudioObjectGetPropertyData error");
            printError(osErr);
            return osErr;
        }
447
448
449
450
451
452
        
    }
    
    return noErr;
}

453
OSStatus JackCoreAudioDriver::CreateAggregateDevice(AudioDeviceID captureDeviceID, AudioDeviceID playbackDeviceID, jack_nframes_t samplerate, AudioDeviceID* outAggregateDevice) 
454
455
456
457
{
    OSStatus osErr = noErr;
    UInt32 outSize;
    Boolean outWritable;
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
    
    // Check devices... (TO IMPROVE)
    if (IsAggregateDevice(captureDeviceID) || IsAggregateDevice(playbackDeviceID)) {
        jack_error("JackCoreAudioDriver::CreateAggregateDevice : cannot agregate devices that are already aggregate devices...");
        return -1;
    }
    
    //---------------------------------------------------------------------------
    // Setup SR of both devices otherwise creating AD may fail...
    //---------------------------------------------------------------------------
    if (SetupSampleRateAux(captureDeviceID, samplerate) < 0) {
        jack_error("JackCoreAudioDriver::CreateAggregateDevice : cannot set SR of input device");
    }
    if (SetupSampleRateAux(playbackDeviceID, samplerate) < 0) {
        jack_error("JackCoreAudioDriver::CreateAggregateDevice : cannot set SR of output device");
    }
474

475
    //---------------------------------------------------------------------------
476
    // Start to create a new aggregate by getting the base audio hardware plugin
sletz's avatar
sletz committed
477
    //---------------------------------------------------------------------------
478
    
479
480
481
482
483
    char capture_name[256];
    char playback_name[256];
    GetDeviceNameFromID(captureDeviceID, capture_name);
    GetDeviceNameFromID(playbackDeviceID, playback_name);
    jack_info("Separated input = '%s' and output = '%s' devices, create a private aggregate device to handle them...", capture_name, playback_name);
484
 
485
    osErr = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyPlugInForBundleID, &outSize, &outWritable);
486
487
488
    if (osErr != noErr) {
        jack_error("JackCoreAudioDriver::CreateAggregateDevice : AudioHardwareGetPropertyInfo kAudioHardwarePropertyPlugInForBundleID error");
        printError(osErr);
489
        return osErr;
490
    }
491
492
493
494

    AudioValueTranslation pluginAVT;

    CFStringRef inBundleRef = CFSTR("com.apple.audio.CoreAudio");
495
   
496
497
    pluginAVT.mInputData = &inBundleRef;
    pluginAVT.mInputDataSize = sizeof(inBundleRef);
498
499
    pluginAVT.mOutputData = &fPluginID;
    pluginAVT.mOutputDataSize = sizeof(fPluginID);
500
501

    osErr = AudioHardwareGetProperty(kAudioHardwarePropertyPlugInForBundleID, &outSize, &pluginAVT);
502
503
504
    if (osErr != noErr) {
        jack_error("JackCoreAudioDriver::CreateAggregateDevice : AudioHardwareGetProperty kAudioHardwarePropertyPlugInForBundleID error");
        printError(osErr);
505
        return osErr;
506
    }
507

508
    //-------------------------------------------------
509
    // Create a CFDictionary for our aggregate device
510
    //-------------------------------------------------
511
512
513
514
515

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

    CFStringRef AggregateDeviceNameRef = CFSTR("JackDuplex");
    CFStringRef AggregateDeviceUIDRef = CFSTR("com.grame.JackDuplex");
516
    
517
518
519
520
521
    // 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);
522
523
524
525
    
    // add a "private aggregate key" to the dictionary
    int value = 1;
    CFNumberRef AggregateDeviceNumberRef = CFNumberCreate(NULL, kCFNumberIntType, &value);
526
    
527
528
529
530
    SInt32 system;
    Gestalt(gestaltSystemVersion, &system);
     
    jack_log("JackCoreAudioDriver::CreateAggregateDevice : system version = %x limit = %x", system, 0x00001054);
531
532
    
    // Starting with 10.5.4 systems, the AD can be internal... (better)
533
534
535
536
    if (system < 0x00001054) {
        jack_log("JackCoreAudioDriver::CreateAggregateDevice : public aggregate device....");
    } else {
        jack_log("JackCoreAudioDriver::CreateAggregateDevice : private aggregate device....");
537
538
        CFDictionaryAddValue(aggDeviceDict, CFSTR(kAudioAggregateDeviceIsPrivateKey), AggregateDeviceNumberRef);
    }
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
    //-------------------------------------------------
    // 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;

567
    osErr = AudioObjectGetPropertyDataSize(fPluginID, &pluginAOPA, 0, NULL, &outDataSize);
568
569
570
    if (osErr != noErr) {
        jack_error("JackCoreAudioDriver::CreateAggregateDevice : AudioObjectGetPropertyDataSize error");
        printError(osErr);
571
        goto error;
572
573
    }
    
574
    osErr = AudioObjectGetPropertyData(fPluginID, &pluginAOPA, sizeof(aggDeviceDict), &aggDeviceDict, &outDataSize, outAggregateDevice);
575
576
577
    if (osErr != noErr) {
        jack_error("JackCoreAudioDriver::CreateAggregateDevice : AudioObjectGetPropertyData error");
        printError(osErr);
578
        goto error;
579
    }
580
581
582
583
584
585
586
587
588
589
590
591
592
593

    // 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);
594
595
596
    if (osErr != noErr) {
        jack_error("JackCoreAudioDriver::CreateAggregateDevice : AudioObjectSetPropertyData for sub-device list error");
        printError(osErr);
597
        goto error;
598
599
    }
    
600
601
602
603
604
605
606
607
608
609
610
611
612
613
    // 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...
614
615
616
    if (osErr != noErr) {
        jack_error("JackCoreAudioDriver::CreateAggregateDevice : AudioObjectSetPropertyData for master device error");
        printError(osErr);
617
        goto error;
618
619
    }
    
620
621
622
623
624
625
    // pause again to give the changes time to take effect
    CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, false);

    //----------
    // Clean up
    //----------
626
    
627
    // release the private AD key
628
    CFRelease(AggregateDeviceNumberRef);
629
630
631
632
633
634
635
636
637

    // 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);
    
638
    jack_log("New aggregate device %ld", *outAggregateDevice);
639
    return noErr;
640
641
642
643
    
error:
    DestroyAggregateDevice();
    return -1;
644
645
}

646
647
648
649
650
int JackCoreAudioDriver::SetupDevices(const char* capture_driver_uid, 
                                      const char* playback_driver_uid, 
                                      char* capture_driver_name, 
                                      char* playback_driver_name, 
                                      jack_nframes_t samplerate)
sletz's avatar
sletz committed
651
{
sletz's avatar
sletz committed
652
    capture_driver_name[0] = 0;
sletz's avatar
sletz committed
653
    playback_driver_name[0] = 0;
sletz's avatar
sletz committed
654
655

    // Duplex
656
    if (strcmp(capture_driver_uid, "") != 0 && strcmp(playback_driver_uid, "") != 0) {
657
        jack_log("JackCoreAudioDriver::Open duplex");
sletz's avatar
sletz committed
658
          
659
660
661
662
663
664
665
666
667
668
669
670
        // 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
671
672
                return -1;
            }
673
674
675
            
        } else {
        
676
            // Creates aggregate device
677
678
679
680
681
            AudioDeviceID captureID, playbackID;
            if (GetDeviceIDFromUID(capture_driver_uid, &captureID) != noErr)
                return -1;
            if (GetDeviceIDFromUID(playback_driver_uid, &playbackID) != noErr) 
                return -1;
682
            if (CreateAggregateDevice(captureID, playbackID, samplerate, &fDeviceID) != noErr)
683
                return -1;
sletz's avatar
sletz committed
684
685
        }

686
    // Capture only
687
    } else if (strcmp(capture_driver_uid, "") != 0) {
688
        jack_log("JackCoreAudioDriver::Open capture only");
sletz's avatar
sletz committed
689
        if (GetDeviceIDFromUID(capture_driver_uid, &fDeviceID) != noErr) {
690
            jack_log("Will take default input");
sletz's avatar
sletz committed
691
692
693
694
695
696
697
698
699
700
            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;
        }

701
    // Playback only
702
    } else if (strcmp(playback_driver_uid, "") != 0) {
703
        jack_log("JackCoreAudioDriver::Open playback only");
sletz's avatar
sletz committed
704
        if (GetDeviceIDFromUID(playback_driver_uid, &fDeviceID) != noErr) {
705
            jack_log("Will take default output");
sletz's avatar
sletz committed
706
707
708
709
710
711
712
713
714
715
            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;
        }

716
    // Use default driver in duplex mode
sletz's avatar
sletz committed
717
    } else {
718
        jack_log("JackCoreAudioDriver::Open default driver");
sletz's avatar
sletz committed
719
720
721
722
723
724
725
726
727
        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;
        }
    }
728
729
730
731
732
733
734
735
    
    if (fHogged) {
        if (TakeHog()) {
            jack_info("Device = %ld has been hogged", fDeviceID);
        } else {
            jack_error("Cannot hog device = %ld", fDeviceID);
        }
    }
sletz's avatar
sletz committed
736
737

    return 0;
738
}
sletz's avatar
sletz committed
739

740
741
742
/*
Return the max possible input channels in in_nChannels and output channels in out_nChannels.
*/
sletz's avatar
Cleanup    
sletz committed
743
int JackCoreAudioDriver::SetupChannels(bool capturing, bool playing, int& inchannels, int& outchannels, int& in_nChannels, int& out_nChannels, bool strict)
744
{
sletz's avatar
sletz committed
745
746
747
    OSStatus err = noErr;

    if (capturing) {
748
        err = GetTotalChannels(fDeviceID, in_nChannels, true);
sletz's avatar
sletz committed
749
750
751
752
        if (err != noErr) {
            jack_error("Cannot get input channel number");
            printError(err);
            return -1;
753
754
        } else {
            jack_log("Max input channels : %d", in_nChannels);
sletz's avatar
sletz committed
755
756
757
758
        }
    }

    if (playing) {
759
        err = GetTotalChannels(fDeviceID, out_nChannels, false);
sletz's avatar
sletz committed
760
761
762
763
        if (err != noErr) {
            jack_error("Cannot get output channel number");
            printError(err);
            return -1;
764
765
        } else {
            jack_log("Max output channels : %d", out_nChannels);
sletz's avatar
sletz committed
766
767
768
769
        }
    }

    if (inchannels > in_nChannels) {
770
        jack_error("This device hasn't required input channels inchannels = %d in_nChannels = %d", inchannels, in_nChannels);
sletz's avatar
sletz committed
771
772
773
        if (strict)
            return -1;
    }
sletz's avatar
sletz committed
774
775

    if (outchannels > out_nChannels) {
776
        jack_error("This device hasn't required output channels outchannels = %d out_nChannels = %d", outchannels, out_nChannels);
777
        if (strict)
sletz's avatar
sletz committed
778
            return -1;
sletz's avatar
sletz committed
779
780
    }

781
    if (inchannels == -1) {
782
        jack_log("Setup max in channels = %d", in_nChannels);
sletz's avatar
sletz committed
783
784
785
        inchannels = in_nChannels;
    }

786
    if (outchannels == -1) {
787
        jack_log("Setup max out channels = %d", out_nChannels);
sletz's avatar
sletz committed
788
789
        outchannels = out_nChannels;
    }
sletz's avatar
sletz committed
790
791

    return 0;
792
}
sletz's avatar
sletz committed
793

794
int JackCoreAudioDriver::SetupBufferSize(jack_nframes_t buffer_size)
795
{
sletz's avatar
sletz committed
796
    // Setting buffer size
797
798
    UInt32 outSize = sizeof(UInt32);
    OSStatus err = AudioDeviceSetProperty(fDeviceID, NULL, 0, false, kAudioDevicePropertyBufferFrameSize, outSize, &buffer_size);
sletz's avatar
sletz committed
799
    if (err != noErr) {
sletz's avatar
sletz committed
800
        jack_error("Cannot set buffer size %ld", buffer_size);
sletz's avatar
sletz committed
801
802
803
804
        printError(err);
        return -1;
    }

805
806
807
808
809
810
811
812
813
814
815
816
817
818
    return 0;
}

int JackCoreAudioDriver::SetupSampleRate(jack_nframes_t samplerate)
{
    return SetupSampleRateAux(fDeviceID, samplerate);
}

int JackCoreAudioDriver::SetupSampleRateAux(AudioDeviceID inDevice, jack_nframes_t samplerate)
{
    OSStatus err = noErr;
    UInt32 outSize;
    Float64 sampleRate;

819
    // Get sample rate
sletz's avatar
sletz committed
820
    outSize =  sizeof(Float64);
821
    err = AudioDeviceGetProperty(inDevice, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyNominalSampleRate, &outSize, &sampleRate);
sletz's avatar
sletz committed
822
823
824
825
826
827
828
829
830
831
832
    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
833
        err = AudioDeviceAddPropertyListener(inDevice, 0, true, kAudioDevicePropertyNominalSampleRate, SRNotificationCallback, this);
sletz's avatar
sletz committed
834
835
836
837
838
        if (err != noErr) {
            jack_error("Error calling AudioDeviceAddPropertyListener with kAudioDevicePropertyNominalSampleRate");
            printError(err);
            return -1;
        }
839
        err = AudioDeviceSetProperty(inDevice, NULL, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyNominalSampleRate, outSize, &sampleRate);
sletz's avatar
sletz committed
840
841
842
843
844
845
846
847
        if (err != noErr) {
            jack_error("Cannot set sample rate = %ld", samplerate);
            printError(err);
            return -1;
        }

        // Waiting for SR change notification
        int count = 0;
848
        while (!fState && count++ < WAIT_COUNTER) {
sletz's avatar
sletz committed
849
            usleep(100000);
850
            jack_log("Wait count = %d", count);
sletz's avatar
sletz committed
851
852
853
        }

        // Remove SR change notification
854
        AudioDeviceRemovePropertyListener(inDevice, 0, true, kAudioDevicePropertyNominalSampleRate, SRNotificationCallback);
sletz's avatar
sletz committed
855
856
857
    }

    return 0;
858
}
859

sletz's avatar
sletz committed
860
861
862
863
864
865
int JackCoreAudioDriver::OpenAUHAL(bool capturing,
                                   bool playing,
                                   int inchannels,
                                   int outchannels,
                                   int in_nChannels,
                                   int out_nChannels,
sletz's avatar
sletz committed
866
                                   jack_nframes_t buffer_size,
867
                                   jack_nframes_t samplerate)
868
{
sletz's avatar
sletz committed
869
    ComponentResult err1;
870
871
    UInt32 enableIO;
    AudioStreamBasicDescription srcFormat, dstFormat;
872
873
    AudioDeviceID currAudioDeviceID;
    UInt32 size;
sletz's avatar
sletz committed
874

875
    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);
sletz's avatar
sletz committed
876

877
878
879
880
881
    if (inchannels == 0 && outchannels == 0) {
        jack_error("No input and output channels...");
        return -1;
    }
         
sletz's avatar
sletz committed
882
    // AUHAL
sletz's avatar
sletz committed
883
884
885
886
887
888
889
    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);
890
        goto error;
sletz's avatar
sletz committed
891
892
893
894
895
896
    }

    err1 = AudioUnitInitialize(fAUHAL);
    if (err1 != noErr) {
        jack_error("Cannot initialize AUHAL unit");
        printError(err1);
897
        goto error;
sletz's avatar
sletz committed
898
899
900
901
    }

    // Start I/O
    if (capturing && inchannels > 0) {
902
903
904
905
906
907
908
909
910
911
912
        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);
913
        goto error;
sletz's avatar
sletz committed
914
915
916
    }

    if (playing && outchannels > 0) {
917
918
919
920
921
922
923
924
925
926
927
        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);
928
        goto error;
929
930
    }
    
931
    size = sizeof(AudioDeviceID);
932
933
934
935
    err1 = AudioUnitGetProperty(fAUHAL, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &currAudioDeviceID, &size);
    if (err1 != noErr) {
        jack_error("Error calling AudioUnitGetProperty - kAudioOutputUnitProperty_CurrentDevice");
        printError(err1);
936
        goto error;
937
938
    } else {
        jack_log("AudioUnitGetPropertyCurrentDevice = %d", currAudioDeviceID);
sletz's avatar
sletz committed
939
940
941
942
943
944
945
    }

    // 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);
946
        goto error;
sletz's avatar
sletz committed
947
    }
948
  
sletz's avatar
sletz committed
949
950
    // Set buffer size
    if (capturing && inchannels > 0) {
951
        err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, 1, (UInt32*)&buffer_size, sizeof(UInt32));
sletz's avatar
sletz committed
952
953
954
        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_MaximumFramesPerSlice");
            printError(err1);
955
            goto error;
sletz's avatar
sletz committed
956
957
958
959
        }
    }

    if (playing && outchannels > 0) {
960
        err1 = AudioUnitSetProperty(fAUHAL, kAudioUnitProperty_MaximumFramesPerSlice, kAudioUnitScope_Global, 0, (UInt32*)&buffer_size, sizeof(UInt32));
sletz's avatar
sletz committed
961
962
963
        if (err1 != noErr) {
            jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_MaximumFramesPerSlice");
            printError(err1);
964
            goto error;
sletz's avatar
sletz committed
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
        }
    }

    // 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);
981
            goto error;
sletz's avatar
sletz committed
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
        }
    }

    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);
997
            goto error;
sletz's avatar
sletz committed
998
999
1000
        }
    }

For faster browsing, not all history is shown. View entire blame