cog/Plugins/sidplay/SidMetadataReader.mm

//
//  SidMetadataReader.mm
//  sidplay
//
//  Created by Christopher Snowhill on 12/8/14.
//  Copyright 2014 __NoWork, Inc__. All rights reserved.
//

#import "SidMetadataReader.h"
#import "SidDecoder.h"

#import "Logging.H"

@implementation SidMetadataReader

+ (NSArray *)fileTypes
{
	return [SidDecoder fileTypes];
}

+ (NSArray *)mimeTypes
{
	return [SidDecoder mimeTypes];
}

+ (float)priority
{
    return 0.5f;
}

+ (NSDictionary *)metadataForURL:(NSURL *)url
{
    id audioSourceClass = NSClassFromString(@"AudioSource");
    id<CogSource> source = [audioSourceClass audioSourceForURL:url];
    
    if (![source open:url])
        return 0;
    
    if (![source seekable])
        return 0;

    [source seek:0 whence:SEEK_END];
    long size = [source tell];
    [source seek:0 whence:SEEK_SET];
    
    void * data = malloc(size);
    [source read:data amount:size];

    SidTune * tune = new SidTune( (const uint_least8_t *)data, (uint_least32_t)size );

    if (!tune->getStatus())
        return 0;
    
    const SidTuneInfo * info = tune->getInfo();

    unsigned int count = info->numberOfInfoStrings();
    NSString *title = count >= 1 ? [[NSString stringWithUTF8String: info->infoString(0)] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]] : @"";
    NSString *titletag = info->songs() > 1 ? @"album" : @"title";
    NSString *artist = count >= 2 ? [[NSString stringWithUTF8String: info->infoString(1)] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]] : @"";

    return [NSDictionary dictionaryWithObjectsAndKeys:title, titletag, artist, @"artist", nil];
}

@end