80 lines
2.7 KiB
Objective-C
80 lines
2.7 KiB
Objective-C
#import "OutputsArrayController.h"
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@implementation OutputsArrayController
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- (void)awakeFromNib
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{
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[self removeObjects:[self arrangedObjects]];
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[self setSelectsInsertedObjects:NO];
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UInt32 propsize;
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AudioObjectPropertyAddress theAddress = {
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.mSelector = kAudioHardwarePropertyDevices,
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.mScope = kAudioObjectPropertyScopeGlobal,
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.mElement = kAudioObjectPropertyElementMaster
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};
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verify_noerr(AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &theAddress, 0, NULL, &propsize));
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int nDevices = propsize / sizeof(AudioDeviceID);
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AudioDeviceID *devids = malloc(propsize);
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verify_noerr(AudioObjectGetPropertyData(kAudioObjectSystemObject, &theAddress, 0, NULL, &propsize, devids));
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int i;
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theAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
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AudioDeviceID systemDefault;
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propsize = sizeof(systemDefault);
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verify_noerr(AudioObjectGetPropertyData(kAudioObjectSystemObject, &theAddress, 0, NULL, &propsize, &systemDefault));
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NSDictionary *defaultDevice = [[[NSUserDefaultsController sharedUserDefaultsController] defaults] objectForKey:@"outputDevice"];
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theAddress.mScope = kAudioDevicePropertyScopeOutput;
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for (i = 0; i < nDevices; ++i) {
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CFStringRef name = NULL;
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propsize = sizeof(name);
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theAddress.mSelector = kAudioDevicePropertyDeviceNameCFString;
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verify_noerr(AudioObjectGetPropertyData(devids[i], &theAddress, 0, NULL, &propsize, &name));
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propsize = 0;
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theAddress.mSelector = kAudioDevicePropertyStreamConfiguration;
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verify_noerr(AudioObjectGetPropertyDataSize(devids[i], &theAddress, 0, NULL, &propsize));
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if (propsize < sizeof(UInt32)) continue;
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AudioBufferList * bufferList = (AudioBufferList *) malloc(propsize);
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verify_noerr(AudioObjectGetPropertyData(devids[i], &theAddress, 0, NULL, &propsize, bufferList));
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UInt32 bufferCount = bufferList->mNumberBuffers;
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free(bufferList);
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if (!bufferCount) continue;
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NSDictionary *deviceInfo = [NSDictionary dictionaryWithObjectsAndKeys:
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[NSString stringWithString:(NSString*)name], @"name",
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[NSNumber numberWithLong:devids[i]], @"deviceID",
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nil];
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[self addObject:deviceInfo];
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CFRelease(name);
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if (defaultDevice) {
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if ([[defaultDevice objectForKey:@"deviceID"] isEqualToNumber:[deviceInfo objectForKey:@"deviceID"]]) {
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[self setSelectedObjects:[NSArray arrayWithObject:deviceInfo]];
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}
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}
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else {
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if ( devids[i] == systemDefault ) {
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[self setSelectedObjects:[NSArray arrayWithObject:deviceInfo]];
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}
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}
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[deviceInfo release];
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}
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free(devids);
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if (!defaultDevice)
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[self setSelectionIndex:0];
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}
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@end
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