Cog/Audio/Chain/Node.h
Christopher Snowhill e9230a080c [Audio Threads] Change workgroup code for safety
The changes include no longer leaving the workgroup for seeking or for
converter format changes, and also still leaving the workgroup on thread
termination if there was an error with intervals starting or finishing.

Signed-off-by: Christopher Snowhill <kode54@gmail.com>
2022-06-15 21:44:03 -07:00

84 lines
1.8 KiB
Objective-C

//
// Node.h
// CogNew
//
// Created by Vincent Spader on 1/4/06.
// Copyright 2006 Vincent Spader. All rights reserved.
//
#import "ChunkList.h"
#import "Semaphore.h"
#import <Cocoa/Cocoa.h>
#import <os/workgroup.h>
#define BUFFER_SIZE 1024 * 1024
#define CHUNK_SIZE 16 * 1024
@interface Node : NSObject {
ChunkList *buffer;
Semaphore *semaphore;
NSRecursiveLock *accessLock;
id __weak previousNode;
id __weak controller;
BOOL shouldReset;
BOOL shouldContinue;
BOOL endOfStream; // All data is now in buffer
BOOL initialBufferFilled;
BOOL isRealtime, isRealtimeError, isDeadlineError; // If was successfully set realtime, or if error
AudioStreamBasicDescription nodeFormat;
uint32_t nodeChannelConfig;
BOOL nodeLossless;
int64_t intervalMachLength;
os_workgroup_interval_t workgroup, wg;
os_workgroup_join_token_s wgToken;
}
- (id _Nullable)initWithController:(id _Nonnull)c previous:(id _Nullable)p;
- (void)writeData:(const void *_Nonnull)ptr amount:(size_t)a;
- (AudioChunk *_Nonnull)readChunk:(size_t)maxFrames;
- (BOOL)peekFormat:(AudioStreamBasicDescription *_Nonnull)format channelConfig:(uint32_t *_Nonnull)config;
- (void)process; // Should be overwriten by subclass
- (void)threadEntry:(id _Nullable)arg;
- (void)followWorkgroup;
- (void)leaveWorkgroup;
- (void)startWorkslice;
- (void)endWorkslice;
- (void)launchThread;
- (void)setShouldReset:(BOOL)s;
- (BOOL)shouldReset;
- (void)setPreviousNode:(id _Nullable)p;
- (id _Nullable)previousNode;
- (BOOL)shouldContinue;
- (void)setShouldContinue:(BOOL)s;
- (ChunkList *_Nonnull)buffer;
- (void)resetBuffer; // WARNING! DANGER WILL ROBINSON!
- (AudioStreamBasicDescription)nodeFormat;
- (uint32_t)nodeChannelConfig;
- (BOOL)nodeLossless;
- (Semaphore *_Nonnull)semaphore;
//-(void)resetBuffer;
- (BOOL)endOfStream;
- (void)setEndOfStream:(BOOL)e;
- (double)secondsBuffered;
@end