Cog/Sound/InputNode.m

53 lines
884 B
Objective-C

//
// InputNode.m
// Cog
//
// Created by Zaphod Beeblebrox on 8/2/05.
// Copyright 2005 __MyCompanyName__. All rights reserved.
//
#import "InputNode.h"
@implementation InputNode
- (void)open:(NSString *)filename
{
soundFile = [SoundFile open:filename];
[soundFile getFormat:&format];
shouldContinue = YES;
}
- (void)process
{
const int chunk_size = CHUNK_SIZE;
char buf[chunk_size];
int amountRead;
DBLog(@"Playing file.\n");
while ([self shouldContinue] == YES && [self endOfStream] == NO)
{
amountRead = [soundFile fillBuffer:buf ofSize: chunk_size];
if (amountRead <= 0)
{
endOfStream = YES;
NSLog(@"END OF INPUT WAS REACHED");
[controller endOfInputReached];
[soundFile close];
return; //eof
}
[self writeData:buf amount:amountRead];
}
[soundFile close];
}
- (AudioStreamBasicDescription) format
{
return format;
}
@end