637ea4efe1
After all this rewriting, down or upmixing the audio is now handled with the lowest latency possible, meaning that toggling the HRIR option now takes effect immediately. Signed-off-by: Christopher Snowhill <kode54@gmail.com>
96 lines
1.9 KiB
Objective-C
96 lines
1.9 KiB
Objective-C
//
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// OutputCoreAudio.h
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// Cog
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//
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// Created by Vincent Spader on 8/2/05.
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// Copyright 2005 Vincent Spader. All rights reserved.
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//
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#import <AssertMacros.h>
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#import <Cocoa/Cocoa.h>
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#import <CoreAudio/AudioHardware.h>
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#import <AudioToolbox/AudioToolbox.h>
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#import <AudioUnit/AudioUnit.h>
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#import <AVFoundation/AVFoundation.h>
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#import <CoreAudio/CoreAudioTypes.h>
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#import <stdatomic.h>
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#import "Semaphore.h"
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#import "Downmix.h"
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//#define OUTPUT_LOG
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#ifdef OUTPUT_LOG
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#import <stdio.h>
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#endif
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@class OutputNode;
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@interface OutputCoreAudio : NSObject {
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OutputNode * outputController;
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Semaphore * writeSemaphore;
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Semaphore * readSemaphore;
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BOOL stopInvoked;
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BOOL running;
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BOOL stopping;
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BOOL stopped;
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BOOL started;
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BOOL paused;
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BOOL stopNext;
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BOOL eqEnabled;
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BOOL streamFormatSetup;
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atomic_long bytesBuffered;
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atomic_long bytesRendered;
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atomic_long bytesHdcdSustained;
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BOOL listenerapplied;
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BOOL observersapplied;
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float volume;
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AVAudioFormat *_deviceFormat;
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AudioDeviceID outputDeviceID;
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AudioStreamBasicDescription deviceFormat; // info about the default device
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AudioStreamBasicDescription outerStreamFormat; // this is set when the buffer changes
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AudioStreamBasicDescription streamFormat; // this is set when the output callback gets it
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AUAudioUnit *_au;
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size_t _bufferSize;
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AudioUnit _eq;
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DownmixProcessor *downmixer;
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void * savedBuffer;
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size_t savedSize;
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size_t savedMaxSize;
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#ifdef OUTPUT_LOG
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FILE *_logFile;
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#endif
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}
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- (id)initWithController:(OutputNode *)c;
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- (BOOL)setup;
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- (OSStatus)setOutputDeviceByID:(AudioDeviceID)deviceID;
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- (BOOL)setOutputDeviceWithDeviceDict:(NSDictionary *)deviceDict;
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- (void)start;
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- (void)pause;
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- (void)resume;
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- (void)stop;
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- (void)setVolume:(double) v;
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- (void)setEqualizerEnabled:(BOOL)enabled;
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- (void)sustainHDCD;
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@end
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