203 lines
3.6 KiB
Objective-C
203 lines
3.6 KiB
Objective-C
//
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// BufferChain.m
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// CogNew
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//
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// Created by Vincent Spader on 1/4/06.
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// Copyright 2006 Vincent Spader. All rights reserved.
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//
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#import "BufferChain.h"
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#import "OutputNode.h"
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#import "AudioSource.h"
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#import "CoreAudioUtils.h"
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#import "Logging.h"
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@implementation BufferChain
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- (id)initWithController:(id)c
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{
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self = [super init];
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if (self)
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{
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controller = c;
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streamURL = nil;
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userInfo = nil;
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rgInfo = nil;
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inputNode = nil;
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converterNode = nil;
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}
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return self;
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}
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- (void)buildChain
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{
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inputNode = nil;
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converterNode = nil;
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inputNode = [[InputNode alloc] initWithController:self previous:nil];
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converterNode = [[ConverterNode alloc] initWithController:self previous:inputNode];
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finalNode = converterNode;
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}
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- (BOOL)open:(NSURL *)url withOutputFormat:(AudioStreamBasicDescription)outputFormat withRGInfo:(NSDictionary *)rgi
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{
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[self setStreamURL:url];
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[self buildChain];
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id<CogSource> source = [AudioSource audioSourceForURL:url];
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DLog(@"Opening: %@", url);
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if (![source open:url])
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{
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DLog(@"Couldn't open source...");
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url = [NSURL URLWithString:@"silence://1"];
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source = [AudioSource audioSourceForURL:url];
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if (![source open:url])
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return NO;
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}
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if (![inputNode openWithSource:source])
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return NO;
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if (![converterNode setupWithInputFormat:propertiesToASBD([inputNode properties]) outputFormat:outputFormat])
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return NO;
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[self setRGInfo:rgi];
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// return NO;
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return YES;
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}
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- (BOOL)openWithInput:(InputNode *)i withOutputFormat:(AudioStreamBasicDescription)outputFormat withRGInfo:(NSDictionary *)rgi
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{
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DLog(@"New buffer chain!");
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[self buildChain];
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if (![inputNode openWithDecoder:[i decoder]])
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return NO;
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DLog(@"Input Properties: %@", [inputNode properties]);
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if (![converterNode setupWithInputFormat:propertiesToASBD([inputNode properties]) outputFormat:outputFormat])
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return NO;
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[self setRGInfo:rgi];
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return YES;
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}
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- (void)launchThreads
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{
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DLog(@"Properties: %@", [inputNode properties]);
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[inputNode launchThread];
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[converterNode launchThread];
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}
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- (void)setUserInfo:(id)i
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{
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userInfo = i;
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}
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- (id)userInfo
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{
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return userInfo;
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}
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- (void)setRGInfo:(NSDictionary *)rgi
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{
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rgInfo = rgi;
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[converterNode setRGInfo:rgi];
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}
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- (NSDictionary *)rgInfo
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{
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return rgInfo;
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}
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- (void)dealloc
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{
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[inputNode setShouldContinue:NO];
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[[inputNode exitAtTheEndOfTheStream] signal];
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[[inputNode semaphore] signal];
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[[inputNode exitAtTheEndOfTheStream] wait]; // wait for decoder to be closed (see InputNode's -(void)process )
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DLog(@"Bufferchain dealloc");
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}
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- (void)seek:(double)time
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{
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long frame = (long) round(time * [[[inputNode properties] objectForKey:@"sampleRate"] floatValue]);
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[inputNode seek:frame];
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}
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- (BOOL)endOfInputReached
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{
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return [controller endOfInputReached:self];
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}
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- (BOOL)setTrack: (NSURL *)track
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{
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return [inputNode setTrack:track];
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}
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- (void)initialBufferFilled:(id)sender
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{
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DLog(@"INITIAL BUFFER FILLED");
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[controller launchOutputThread];
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}
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- (void)inputFormatDidChange:(AudioStreamBasicDescription)format
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{
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DLog(@"FORMAT DID CHANGE!");
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}
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- (InputNode *)inputNode
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{
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return inputNode;
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}
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- (id)finalNode
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{
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return finalNode;
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}
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- (NSURL *)streamURL
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{
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return streamURL;
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}
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- (void)setStreamURL:(NSURL *)url
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{
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streamURL = url;
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}
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- (void)setShouldContinue:(BOOL)s
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{
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[inputNode setShouldContinue:s];
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[converterNode setShouldContinue:s];
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}
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- (BOOL)isRunning
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{
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InputNode *node = [self inputNode];
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if (nil != node && [node shouldContinue] && ![node endOfStream])
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{
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return YES;
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}
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return NO;
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}
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- (id)controller
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{
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return controller;
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}
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@end
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