cog/Audio/Output/OutputAVFoundation.h

146 lines
2.9 KiB
Objective-C

//
// OutputAVFoundation.h
// Cog
//
// Created by Christopher Snowhill on 6/23/22.
// Copyright 2022 Christopher Snowhill. All rights reserved.
//
#import <AssertMacros.h>
#import <Cocoa/Cocoa.h>
#import <AVFoundation/AVFoundation.h>
#import <AudioToolbox/AudioToolbox.h>
#import <AudioUnit/AudioUnit.h>
#import <CoreAudio/AudioHardware.h>
#import <CoreAudio/CoreAudioTypes.h>
#ifdef __cplusplus
#import <atomic>
using std::atomic_long;
#else
#import <stdatomic.h>
#endif
#import "Downmix.h"
#import "VisualizationController.h"
#import "HeadphoneFilter.h"
//#define OUTPUT_LOG
#ifdef OUTPUT_LOG
#import <stdio.h>
#endif
@class OutputNode;
@class FSurroundFilter;
@interface OutputAVFoundation : NSObject {
OutputNode *outputController;
BOOL r8bDone;
void *r8bstate, *r8bold;
void *r8bvis;
double lastVisRate;
BOOL stopInvoked;
BOOL stopCompleted;
BOOL running;
BOOL stopping;
BOOL stopped;
BOOL started;
BOOL paused;
BOOL restarted;
BOOL commandStop;
BOOL eqEnabled;
BOOL eqInitialized;
BOOL streamFormatStarted;
BOOL streamFormatChanged;
double secondsHdcdSustained;
BOOL defaultdevicelistenerapplied;
BOOL currentdevicelistenerapplied;
BOOL devicealivelistenerapplied;
BOOL observersapplied;
BOOL outputdevicechanged;
float volume;
float eqPreamp;
AudioDeviceID outputDeviceID;
AudioStreamBasicDescription realStreamFormat; // stream format pre-hrtf
AudioStreamBasicDescription streamFormat; // stream format last seen in render callback
AudioStreamBasicDescription realNewFormat; // in case of resampler flush
AudioStreamBasicDescription newFormat; // in case of resampler flush
AudioStreamBasicDescription visFormat; // Mono format for vis
uint32_t realStreamChannelConfig;
uint32_t streamChannelConfig;
uint32_t realNewChannelConfig;
uint32_t newChannelConfig;
AVSampleBufferAudioRenderer *audioRenderer;
AVSampleBufferRenderSynchronizer *renderSynchronizer;
CMAudioFormatDescriptionRef audioFormatDescription;
id currentPtsObserver;
NSLock *currentPtsLock;
CMTime currentPts, lastPts;
double secondsLatency;
CMTime outputPts, trackPts, lastCheckpointPts;
AudioTimeStamp timeStamp;
size_t _bufferSize;
AudioUnit _eq;
DownmixProcessor *downmixerForVis;
VisualizationController *visController;
BOOL enableHrtf;
HeadphoneFilter *hrtf;
BOOL enableFSurround;
FSurroundFilter *fsurround;
float *samplePtr;
float inputBuffer[4096 * 32]; // 4096 samples times maximum supported channel count
float fsurroundBuffer[4096 * 6];
float hrtfBuffer[4096 * 2];
float eqBuffer[4096 * 32];
#ifdef OUTPUT_LOG
FILE *_logFile;
#endif
}
- (id)initWithController:(OutputNode *)c;
- (BOOL)setup;
- (OSStatus)setOutputDeviceByID:(AudioDeviceID)deviceID;
- (BOOL)setOutputDeviceWithDeviceDict:(NSDictionary *)deviceDict;
- (void)start;
- (void)pause;
- (void)resume;
- (void)stop;
- (double)latency;
- (void)setVolume:(double)v;
- (void)setEqualizerEnabled:(BOOL)enabled;
- (void)sustainHDCD;
@end