80 lines
1.4 KiB
Objective-C
80 lines
1.4 KiB
Objective-C
//
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// VorbisFile.m
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// zyVorbis
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//
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// Created by Vincent Spader on 1/22/05.
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// Copyright 2005 Vincent Spader All rights reserved.
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//
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#import "VorbisFile.h"
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@implementation VorbisFile
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- (BOOL)open:(const char *)filename
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{
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inFd = fopen(filename, "rb");
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if (inFd == 0)
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return NO;
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if (ov_open(inFd, &vorbisRef, NULL, 0) != 0)
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return NO;
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return [self readInfo];
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}
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- (BOOL)readInfo
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{
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vorbis_info *vi;
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vi = ov_info(&vorbisRef, -1);
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bitRate = (int)(vi->bitrate_nominal/1000.0);
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channels = vi->channels;
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bitsPerSample = vi->channels * 8;
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frequency = vi->rate;
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totalSize = ov_pcm_total(&vorbisRef, -1) * channels * bitsPerSample/8;
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// DBLog(@"Ok to go WITH OGG.");
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return YES;
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}
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- (BOOL)readInfo:(const char *)filename
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{
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[self open:filename]; //automatically invokes readInfo
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return YES;
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}
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- (int)fillBuffer:(void *)buf ofSize:(UInt32)size
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{
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int numread;
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int total = 0;
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numread = ov_read(&vorbisRef, &((char *)buf)[total], size - total, 0, bitsPerSample/8, 1, ¤tSection);
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while (total != size && numread > 0)
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{
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total += numread;
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numread = ov_read(&vorbisRef, &((char *)buf)[total], size - total, 0, bitsPerSample/8, 1, ¤tSection);
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}
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return total;
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}
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- (void)close
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{
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ov_clear(&vorbisRef);
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}
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- (double)seekToTime:(double)milliseconds
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{
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ov_time_seek(&vorbisRef, (double)milliseconds/1000.0);
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return milliseconds;
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}
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@end
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