cog/SoundFile/MonkeysFile.m

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//
// MonkeysFile.m
// zyVorbis
//
// Created by Vincent Spader on 1/30/05.
// Copyright 2005 __MyCompanyName__. All rights reserved.
//
#import "MonkeysFile.h"
#import "MAC/ApeInfo.h"
@implementation MonkeysFile
- (BOOL)open:(const char *)filename
{
int n;
decompress = CreateIAPEDecompress(filename, &n);
if (decompress == NULL)
{
DBLog(@"ERROR OPENING FILE");
return NO;
}
frequency = decompress->GetInfo(APE_INFO_SAMPLE_RATE);
bitsPerSample = decompress->GetInfo(APE_INFO_BITS_PER_SAMPLE);
channels = decompress->GetInfo(APE_INFO_CHANNELS);
totalSize = decompress->GetInfo(APE_INFO_TOTAL_BLOCKS)*bitsPerSample/8*channels;
DBLog(@"APE OPENED: %i %i %i %i", frequency, bitsPerSample, channels, totalSize);
return YES;
}
- (BOOL)readInfo:(const char *)filename
{
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return [self open:filename];
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}
- (int)fillBuffer:(void *)buf ofSize:(UInt32)size
{
int n;
int numread;
int blockAlign = decompress->GetInfo(APE_INFO_BLOCK_ALIGN);
n = decompress->GetData((char *)buf, size/blockAlign, &numread);
if (n != ERROR_SUCCESS)
{
DBLog(@"ERROR: %i", n);
return 0;
}
numread *= blockAlign;
// DBLog(@"READ DATA: %i", numread);
// DBLog(@"NUMREAD: %i", numread);
return numread;
}
- (void)close
{
// DBLog(@"CLOSE");
if (decompress)
delete decompress;
decompress = NULL;
}
- (double)seekToTime:(double)milliseconds
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{
int r;
// DBLog(@"HELLO: %i", int(frequency*((double)milliseconds/1000.0)));
r = decompress->Seek(int(frequency*((double)milliseconds/1000.0)));
return milliseconds;
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}
@end