9dcc434992
Visualization now buffers in the audio output pipeline, and uses a container system to delay multiple buffer chains from emitting visualization data over top of each other. This should stabilize display output significantly, while introducing minimal lag before DSP configuration changes take effect. Signed-off-by: Christopher Snowhill <kode54@gmail.com>
136 lines
2.5 KiB
Objective-C
136 lines
2.5 KiB
Objective-C
//
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// OutputCoreAudio.h
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// Cog
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//
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// Created by Christopher Snowhill on 7/25/23.
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// Copyright 2023-2024 Christopher Snowhill. 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 <AVFoundation/AVFoundation.h>
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#import <AudioToolbox/AudioToolbox.h>
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#import <AudioUnit/AudioUnit.h>
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#import <CoreAudio/AudioHardware.h>
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#import <CoreAudio/CoreAudioTypes.h>
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#ifdef __cplusplus
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#import <atomic>
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using std::atomic_long;
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#else
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#import <stdatomic.h>
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#endif
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#import "Downmix.h"
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#import <CogAudio/CogAudio-Swift.h>
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#import <simd/simd.h>
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#import "HeadphoneFilter.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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@class AudioChunk;
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@interface OutputCoreAudio : NSObject {
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OutputNode *outputController;
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dispatch_semaphore_t writeSemaphore;
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dispatch_semaphore_t readSemaphore;
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NSLock *outputLock;
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double streamTimestamp;
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double lastClippedSampleRate;
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BOOL stopInvoked;
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BOOL stopCompleted;
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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 restarted;
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BOOL commandStop;
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BOOL eqEnabled;
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BOOL eqInitialized;
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BOOL streamFormatStarted;
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BOOL streamFormatChanged;
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double secondsHdcdSustained;
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BOOL defaultdevicelistenerapplied;
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BOOL currentdevicelistenerapplied;
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BOOL devicealivelistenerapplied;
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BOOL observersapplied;
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BOOL outputdevicechanged;
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float volume;
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float eqPreamp;
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AVAudioFormat *_deviceFormat;
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AudioDeviceID outputDeviceID;
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AudioStreamBasicDescription deviceFormat;
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AudioStreamBasicDescription realStreamFormat; // stream format pre-hrtf
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AudioStreamBasicDescription streamFormat; // stream format last seen in render callback
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uint32_t deviceChannelConfig;
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uint32_t realStreamChannelConfig;
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uint32_t streamChannelConfig;
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AUAudioUnit *_au;
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size_t _bufferSize;
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DownmixProcessor *downmixer;
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VisualizationController *visController;
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int inputRemain;
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AudioChunk *chunkRemain;
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BOOL resetStreamFormat;
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BOOL shouldPlayOutBuffer;
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float *samplePtr;
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float tempBuffer[512 * 32];
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float inputBuffer[4096 * 32]; // 4096 samples times maximum supported channel count
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float downmixBuffer[4096 * 8];
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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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- (double)latency;
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- (void)setVolume:(double)v;
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- (void)setShouldPlayOutBuffer:(BOOL)enabled;
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- (void)sustainHDCD;
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@end
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