139 lines
2.0 KiB
Objective-C
139 lines
2.0 KiB
Objective-C
//
|
|
// BufferChain.m
|
|
// CogNew
|
|
//
|
|
// Created by Vincent Spader on 1/4/06.
|
|
// Copyright 2006 Vincent Spader. All rights reserved.
|
|
//
|
|
|
|
#import "BufferChain.h"
|
|
#import "OutputNode.h"
|
|
#import "AudioSource.h"
|
|
#import "CoreAudioUtils.h"
|
|
|
|
@implementation BufferChain
|
|
|
|
- (id)initWithController:(id)c
|
|
{
|
|
self = [super init];
|
|
if (self)
|
|
{
|
|
controller = c;
|
|
streamURL = nil;
|
|
userInfo = nil;
|
|
|
|
inputNode = nil;
|
|
}
|
|
|
|
return self;
|
|
}
|
|
|
|
- (void)buildChain
|
|
{
|
|
[inputNode release];
|
|
|
|
inputNode = [[InputNode alloc] initWithController:self previous:nil];
|
|
|
|
finalNode = inputNode;
|
|
}
|
|
|
|
- (BOOL)open:(NSURL *)url withOutputFormat:(AudioStreamBasicDescription)outputFormat
|
|
{
|
|
[self setStreamURL:url];
|
|
|
|
[self buildChain];
|
|
|
|
id<CogSource> source = [AudioSource audioSourceForURL:url];
|
|
|
|
if (![source open:url])
|
|
{
|
|
NSLog(@"Couldn't open source...");
|
|
return NO;
|
|
}
|
|
|
|
|
|
if (![inputNode openURL:url withSource:source outputFormat:outputFormat])
|
|
return NO;
|
|
|
|
return YES;
|
|
}
|
|
|
|
- (void)launchThreads
|
|
{
|
|
DBLog(@"LAUNCHING THREAD FOR INPUT");
|
|
[inputNode launchThread];
|
|
}
|
|
|
|
- (void)setUserInfo:(id)i
|
|
{
|
|
[i retain];
|
|
[userInfo release];
|
|
userInfo = i;
|
|
}
|
|
|
|
- (id)userInfo
|
|
{
|
|
return userInfo;
|
|
}
|
|
|
|
- (void)dealloc
|
|
{
|
|
[userInfo release];
|
|
|
|
[inputNode release];
|
|
|
|
[super dealloc];
|
|
}
|
|
|
|
- (void)seek:(double)time
|
|
{
|
|
[[inputNode readLock] lock];
|
|
[[inputNode writeLock] lock];
|
|
|
|
//Signal so its waiting when we unlock
|
|
[[inputNode semaphore] signal];
|
|
|
|
NSLog(@"Reset input buffer!");
|
|
[inputNode resetBuffer];
|
|
NSLog(@"Seeking in bufferchain!");
|
|
[inputNode seek:time];
|
|
|
|
[[inputNode writeLock] unlock];
|
|
[[inputNode readLock] unlock];
|
|
}
|
|
|
|
- (void)endOfInputReached
|
|
{
|
|
[controller endOfInputReached:self];
|
|
}
|
|
|
|
- (void)initialBufferFilled
|
|
{
|
|
[controller launchOutputThread];
|
|
}
|
|
|
|
- (id)finalNode
|
|
{
|
|
return finalNode;
|
|
}
|
|
|
|
- (NSURL *)streamURL
|
|
{
|
|
return streamURL;
|
|
}
|
|
|
|
- (void)setStreamURL:(NSURL *)url
|
|
{
|
|
[url retain];
|
|
[streamURL release];
|
|
|
|
streamURL = url;
|
|
}
|
|
|
|
- (void)setShouldContinue:(BOOL)s
|
|
{
|
|
[inputNode setShouldContinue:s];
|
|
}
|
|
|
|
@end
|