cog/Audio/Chain/InputNode.m

98 lines
1.6 KiB
Objective-C

//
// InputNode.m
// Cog
//
// Created by Vincent Spader on 8/2/05.
// Copyright 2005 Vincent Spader. All rights reserved.
//
#import "InputNode.h"
#import "BufferChain.h"
@implementation InputNode
- (BOOL)open:(NSURL *)url
{
NSLog(@"Opening: %@", url);
decoder = [AudioDecoder audioDecoderForURL:url];
[decoder retain];
NSLog(@"Got decoder...%@", decoder);
if (decoder == nil)
return NO;
if (![decoder open:url])
return NO;
/* while (decoder == nil)
{
NSURL *nextStream = [controller invalidDecoder];
if (nextStream == nil)
return NO;
decoder = [AudioDecoder audioDecoderForURL:nextStream];
[decoder open:nextStream];
}
*/
shouldContinue = YES;
shouldSeek = NO;
return YES;
}
- (void)process
{
const int chunk_size = CHUNK_SIZE;
char *buf;
int amountRead;
NSLog(@"Playing file: %i", self);
buf = malloc(chunk_size);
while ([self shouldContinue] == YES && [self endOfStream] == NO)
{
if (shouldSeek == YES)
{
NSLog(@"Actually seeking");
[decoder seekToTime:seekTime];
shouldSeek = NO;
}
amountRead = [decoder fillBuffer:buf ofSize: chunk_size];
if (amountRead <= 0)
{
endOfStream = YES;
DBLog(@"END OF INPUT WAS REACHED");
[controller endOfInputReached];
break; //eof
}
[self writeData:buf amount:amountRead];
}
free(buf);
[decoder close];
NSLog(@"CLOSED: %i", self);
}
- (void)seek:(double)time
{
NSLog(@"SEEKING WEEE");
seekTime = time;
shouldSeek = YES;
}
- (void)dealloc
{
[decoder release];
[super dealloc];
}
- (NSDictionary *) properties
{
return [decoder properties];
}
@end