cog/Plugins/OpenMPT.old/OpenMPT/OMPTMetadataReader.mm

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//
// OMPTMetadataReader.m
// OpenMPT
//
// Created by Christopher Snowhill on 1/4/18.
// Copyright 2018 __LoSnoCo__. All rights reserved.
//
#import "OMPTMetadataReader.h"
#import "OMPTDecoder.h"
#import <libOpenMPTOld/libopenmpt.hpp>
#import "Logging.H"
@implementation OMPTOldMetadataReader
+ (NSArray *)fileTypes {
return [OMPTOldDecoder fileTypes];
}
+ (NSArray *)mimeTypes {
return [OMPTOldDecoder mimeTypes];
}
+ (float)priority {
return [OMPTOldDecoder priority];
}
+ (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];
std::vector<char> data(static_cast<std::size_t>(size));
[source read:data.data() amount:size];
int track_num;
if([[url fragment] length] == 0)
track_num = 0;
else
track_num = [[url fragment] intValue];
try {
std::map<std::string, std::string> ctls;
openmpt::module *mod = new openmpt::module(data, std::clog, ctls);
NSString *title = nil;
NSString *artist = nil;
// NSString * comment = nil;
NSString *date = nil;
NSString *type = nil;
std::vector<std::string> keys = mod->get_metadata_keys();
for(std::vector<std::string>::iterator key = keys.begin(); key != keys.end(); ++key) {
if(*key == "title")
title = guess_encoding_of_string(mod->get_metadata(*key).c_str());
else if(*key == "artist")
artist = guess_encoding_of_string(mod->get_metadata(*key).c_str());
/*else if ( *key == "message" )
comment = guess_encoding_of_string(mod->get_metadata( *key ).c_str());*/
else if(*key == "date")
date = guess_encoding_of_string(mod->get_metadata(*key).c_str());
else if(*key == "type_long")
type = guess_encoding_of_string(mod->get_metadata(*key).c_str());
}
delete mod;
if(title == nil)
title = @"";
if(artist == nil)
artist = @"";
/*if (comment == nil)
comment = @"";*/
if(date == nil)
date = @"";
if(type == nil)
type = @"";
return @{ @"title": title, @"artist": artist, /*@"comment": comment,*/ @"year": @([date intValue]), @"codec": type };
} catch(std::exception & /*e*/) {
return 0;
}
}
@end