dccb7f8b47
The output now uses AVSampleBufferAudioRenderer to play all formats, and uses that to resample. It also supports Spatial Audio on macOS 12.0 or newer. Note that there are some outstanding bugs with Spatial Audio support. Namely that it appears to be limited to only 192 kHz at mono or stereo, or 352800 Hz at surround configurations. This breaks DSD64 playback at stereo formats, as well as possibly other things. This is entirely an Apple bug. I have reported it to Apple with reference code FB10441301 for reference, in case anyone else wants to complain that it isn't fixed. Signed-off-by: Christopher Snowhill <kode54@gmail.com>
120 lines
2.3 KiB
Objective-C
120 lines
2.3 KiB
Objective-C
//
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// OutputAVFoundation.h
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// Cog
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//
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// Created by Christopher Snowhill on 6/23/22.
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// Copyright 2022 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 "VisualizationController.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 OutputAVFoundation : NSObject {
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OutputNode *outputController;
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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 restarted;
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BOOL eqEnabled;
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BOOL eqInitialized;
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BOOL dontRemix;
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BOOL streamFormatStarted;
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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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AudioDeviceID outputDeviceID;
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AudioStreamBasicDescription streamFormat; // stream format last seen in render callback
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AudioStreamBasicDescription visFormat; // Mono format for vis
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uint32_t deviceChannelConfig;
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uint32_t streamChannelConfig;
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AVSampleBufferAudioRenderer *audioRenderer;
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AVSampleBufferRenderSynchronizer *renderSynchronizer;
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CMAudioFormatDescriptionRef audioFormatDescription;
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AudioChannelLayoutTag streamTag;
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id currentPtsObserver;
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NSLock *currentPtsLock;
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CMTime currentPts, lastPts;
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double secondsLatency;
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CMTime outputPts, trackPts, lastCheckpointPts;
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AudioTimeStamp timeStamp;
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size_t _bufferSize;
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AudioUnit _eq;
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DownmixProcessor *downmixerForVis;
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VisualizationController *visController;
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float inputBuffer[2048 * 32]; // 2048 samples times maximum supported channel count
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float eqBuffer[2048 * 32];
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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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