cog/Audio/Output/OutputCoreAudio.h

//
//  OutputCoreAudio.h
//  Cog
//
//  Created by Vincent Spader on 8/2/05.
//  Copyright 2005 Vincent Spader. All rights reserved.
//

#import <AssertMacros.h>
#import <Cocoa/Cocoa.h>

#import <CoreAudio/AudioHardware.h>
#import <AudioToolbox/AudioToolbox.h>
#import <AudioUnit/AudioUnit.h>
#import <AVFoundation/AVFoundation.h>

#import <stdatomic.h>

#import "Semaphore.h"

@class OutputNode;

@interface OutputCoreAudio : NSObject {
	OutputNode * outputController;
    
    Semaphore * writeSemaphore;
    Semaphore * readSemaphore;
    
    BOOL running;
    BOOL stopping;
    BOOL stopped;
    BOOL started;
    BOOL paused;
    
    atomic_long bytesRendered;
    
    BOOL listenerapplied;
    
    float volume;
    
    AVAudioFormat *_deviceFormat;

    AudioDeviceID outputDeviceID;
    AudioStreamBasicDescription deviceFormat;    // info about the default device

    AUAudioUnit *_au;
    size_t _bufferSize;
}

- (id)initWithController:(OutputNode *)c;

- (BOOL)setup;
- (OSStatus)setOutputDeviceByID:(AudioDeviceID)deviceID;
- (BOOL)setOutputDeviceWithDeviceDict:(NSDictionary *)deviceDict;
- (void)start;
- (void)pause;
- (void)resume;
- (void)stop;

- (void)setVolume:(double) v;

@end
New Core 2006-01-20 15:34:02 +00:00			`//`
			`// OutputCoreAudio.h`
			`// Cog`
			`//`
Changed copyright notice so it is my actual name. Added a helper script to compile preferences and dependencies. Changed COMPILE instructions. 2006-09-04 18:46:18 +00:00			`// Created by Vincent Spader on 8/2/05.`
			`// Copyright 2005 Vincent Spader. All rights reserved.`
New Core 2006-01-20 15:34:02 +00:00			`//`

Clean up audio output code just a bit 2020-03-23 08:46:41 +00:00			`#import <AssertMacros.h>`
New Core 2006-01-20 15:34:02 +00:00			`#import <Cocoa/Cocoa.h>`

			`#import <CoreAudio/AudioHardware.h>`
			`#import <AudioToolbox/AudioToolbox.h>`
			`#import <AudioUnit/AudioUnit.h>`
Replaced AudioQueue output with AUAudioUnit 2022-01-11 15:06:40 +00:00			`#import <AVFoundation/AVFoundation.h>`
New Core 2006-01-20 15:34:02 +00:00
Cog Audio: Further overhaul output buffering and track queue code 2022-01-15 10:09:26 +00:00			`#import <stdatomic.h>`

Cog Audio: Overhaul output buffering yet again, adding an extra buffer stage between the converter and the output thread 2022-01-15 06:46:41 +00:00			`#import "Semaphore.h"`

Merged with cog-audio-framework branch. Cog now uses plugins. 2007-02-24 20:36:27 +00:00			`@class OutputNode;`

New Core 2006-01-20 15:34:02 +00:00			`@interface OutputCoreAudio : NSObject {`
Merged with cog-audio-framework branch. Cog now uses plugins. 2007-02-24 20:36:27 +00:00			`OutputNode * outputController;`
Core Audio Output: Add a check that should prevent it from attempting to output data through the callback during or after destruction 2021-09-18 02:09:34 +00:00
Cog Audio: Overhaul output buffering yet again, adding an extra buffer stage between the converter and the output thread 2022-01-15 06:46:41 +00:00			`Semaphore * writeSemaphore;`
			`Semaphore * readSemaphore;`

Core Audio output: Correctly terminate output when requested to stop, preventing a case where multiple outputs were draining the playback buffer at once 2022-01-13 00:04:41 +00:00			`BOOL running;`
Core Audio Output: Add a check that should prevent it from attempting to output data through the callback during or after destruction 2021-09-18 02:09:34 +00:00			`BOOL stopping;`
Core Audio output: Properly support switching output devices 2021-12-27 01:16:16 +00:00			`BOOL stopped;`
Cog Audio: Overhaul output buffering yet again, adding an extra buffer stage between the converter and the output thread 2022-01-15 06:46:41 +00:00			`BOOL started;`
			`BOOL paused;`
Core Audio: Overhauled audio output to use AudioQueue instead of AudioUnit, fixed downmixing to mono, and implemented upmixing mono or other formats to more channels if the device requests them 2021-12-26 06:32:43 +00:00
Cog Audio: Further overhaul output buffering and track queue code 2022-01-15 10:09:26 +00:00			`atomic_long bytesRendered;`

Core Audio output: Default device setting now tracks system device changes, and output assigns a speaker mapping depending on the channel count 2021-12-27 05:27:26 +00:00			`BOOL listenerapplied;`

Core Audio: Overhauled audio output to use AudioQueue instead of AudioUnit, fixed downmixing to mono, and implemented upmixing mono or other formats to more channels if the device requests them 2021-12-26 06:32:43 +00:00			`float volume;`
Cog Audio: Implemented device output and input file format changing support 2022-01-13 05:31:22 +00:00
			`AVAudioFormat *_deviceFormat;`
Core Audio: Overhauled audio output to use AudioQueue instead of AudioUnit, fixed downmixing to mono, and implemented upmixing mono or other formats to more channels if the device requests them 2021-12-26 06:32:43 +00:00
Added basic output device channel mapping support 2013-10-07 07:24:00 +00:00			`AudioDeviceID outputDeviceID;`
Core Audio: Overhauled audio output to use AudioQueue instead of AudioUnit, fixed downmixing to mono, and implemented upmixing mono or other formats to more channels if the device requests them 2021-12-26 06:32:43 +00:00			`AudioStreamBasicDescription deviceFormat; // info about the default device`

Replaced AudioQueue output with AUAudioUnit 2022-01-11 15:06:40 +00:00			`AUAudioUnit *_au;`
			`size_t _bufferSize;`
New Core 2006-01-20 15:34:02 +00:00			`}`

Merged with cog-audio-framework branch. Cog now uses plugins. 2007-02-24 20:36:27 +00:00			`- (id)initWithController:(OutputNode *)c;`
New Core 2006-01-20 15:34:02 +00:00
			`- (BOOL)setup;`
Clean up output device code. 2020-02-17 17:20:48 +00:00			`- (OSStatus)setOutputDeviceByID:(AudioDeviceID)deviceID;`
			`- (BOOL)setOutputDeviceWithDeviceDict:(NSDictionary *)deviceDict;`
New Core 2006-01-20 15:34:02 +00:00			`- (void)start;`
Added output device selection through preferences...hopefully. 2007-02-20 01:02:23 +00:00			`- (void)pause;`
			`- (void)resume;`
			`- (void)stop;`
New Core 2006-01-20 15:34:02 +00:00
			`- (void)setVolume:(double) v;`

			`@end`