15eaa877b1
Whew, what a mess! And this may pave the way for crossfading. Signed-off-by: Christopher Snowhill <kode54@gmail.com>
76 lines
1.5 KiB
Objective-C
76 lines
1.5 KiB
Objective-C
//
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// DSPNode.m
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// CogAudio Framework
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//
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// Created by Christopher Snowhill on 2/10/25.
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//
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#import <Foundation/Foundation.h>
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#import "DSPNode.h"
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@implementation DSPNode {
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BOOL threadTerminated;
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}
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- (id _Nullable)initWithController:(id _Nonnull)c previous:(id _Nullable)p latency:(double)latency {
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self = [super init];
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if(self) {
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buffer = [[ChunkList alloc] initWithMaximumDuration:latency];
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writeSemaphore = [[Semaphore alloc] init];
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readSemaphore = [[Semaphore alloc] init];
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accessLock = [[NSLock alloc] init];
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initialBufferFilled = NO;
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controller = c;
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endOfStream = NO;
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shouldContinue = YES;
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nodeChannelConfig = 0;
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nodeLossless = NO;
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durationPrebuffer = latency * 0.25;
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inWrite = NO;
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inPeek = NO;
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inRead = NO;
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inMerge = NO;
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[self setPreviousNode:p];
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#ifdef LOG_CHAINS
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[self initLogFiles];
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#endif
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}
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return self;
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}
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// DSP threads buffer for low latency, and therefore should have high priority
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- (void)threadEntry:(id _Nullable)arg {
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@autoreleasepool {
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NSThread *currentThread = [NSThread currentThread];
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[currentThread setThreadPriority:0.75];
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[currentThread setQualityOfService:NSQualityOfServiceUserInitiated];
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threadTerminated = NO;
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[self process];
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threadTerminated = YES;
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}
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}
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- (void)setShouldContinue:(BOOL)s {
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BOOL currentShouldContinue = shouldContinue;
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shouldContinue = s;
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if(!currentShouldContinue && s && threadTerminated) {
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[self launchThread];
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}
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}
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- (double)secondsBuffered {
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return [buffer listDuration];
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}
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@end
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