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winamp/Src/Winamp/Metadata.cpp

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2024-09-24 12:54:57 +00:00
#include "main.h"
#include "Metadata.h"
#include "api.h"
#include <api/service/waservicefactory.h>
/**
** Author: Ben Allison
** original date: April 10, 2006
*/
Metadata::~Metadata()
{
for ( wchar_t *l_key : keys )
free( l_key );
keys.clear();
}
int Metadata::GetExtendedFileInfo(const wchar_t *filename, const wchar_t *tag, wchar_t *data, size_t dataLength)
{
// benski> old way CUT: return in_get_extended_fileinfoW(filename, tag, data, dataLength);
/*
int result = 0; // failure
svc_metaTag *metaTag = GetMetaTagObject(filename, METATAG_ALL, 0, 0);
if (metaTag)
{
if (metaTag->metaTag_open(filename) == METATAG_SUCCESS)
metaTag->getMetaData(tag, reinterpret_cast<__int8 *>(data), dataLength*sizeof(wchar_t), METATYPE_STRING);
metaTag->metaTag_close();
}
else // TODO: we could get rid of this as soon as we make extendedMetaTag (see TODO at end of file)
*/
return in_get_extended_fileinfoW(filename, tag, data, dataLength);
//return !!(result == METATAG_SUCCESS);
}
int Metadata::SetExtendedFileInfo(const wchar_t *filename, const wchar_t *tag, const wchar_t *data)
{
return in_set_extended_fileinfoW(filename, tag, const_cast<wchar_t *>(data));
}
int Metadata::WriteExtendedFileInfo(const wchar_t *filename)
{
return in_write_extended_fileinfo();
}
inline static bool InList(const GUID guid, GUID *exclude, int numExcludes)
{
if (!exclude)
return false;
while (numExcludes--)
{
if (guid == exclude[numExcludes])
return true;
}
return false;
}
svc_metaTag *Metadata::GetMetaTagObject(const wchar_t *filename, int flags, GUID *exclude, int numExcludes)
{
int i = 0;
waServiceFactory *sf = 0;
do
{
sf = WASABI_API_SVC->service_enumService(WaSvc::METATAG, i++);
if (sf)
{
svc_metaTag *metaTag = static_cast<svc_metaTag *>(sf->getInterface());
if (metaTag
&& !InList(metaTag->getGUID(), exclude, numExcludes)
&& flags & metaTag->getFlags()
&& metaTag->isOurFile(filename))
return metaTag;
sf->releaseInterface(metaTag);
}
}
while (sf);
return 0;
}
svc_metaTag *Metadata::GetMetaTagObjectByGUID(const GUID metaTagGuid)
{
waServiceFactory *sf = WASABI_API_SVC->service_getServiceByGuid(metaTagGuid);
if (sf && sf->getServiceType() == WaSvc::METATAG) // just to be safe
return static_cast<svc_metaTag *>(sf->getInterface());
return NULL;
}
uint32_t Metadata::GenerateKey(const wchar_t *field)
{
Nullsoft::Utility::AutoLock keyLock(keyGuard);
// TODO this is hella slow but it'll get the ball rolling on implementing this
for (size_t i=0;i!=keys.size();i++)
{
if (!_wcsicmp(field, keys[i]))
return (uint32_t)i;
}
keys.push_back(_wcsdup(field));
return (uint32_t)keys.size()-1;
}
// TODO: extendedMetaTag, derived from svc_metaTag, that uses getExtendedFileInfo
#define CBCLASS Metadata
START_DISPATCH;
CB(API_METADATA_GETEXTENDEDFILEINFO, GetExtendedFileInfo)
CB(API_METADATA_SETEXTENDEDFILEINFO, SetExtendedFileInfo)
CB(API_METADATA_WRITEEXTENDEDFILEINFO, WriteExtendedFileInfo)
CB(API_METADATA_GETMETATAGOBJECT, GetMetaTagObject)
CB(API_METADATA_GETMETATAGOBJECTBYGUID, GetMetaTagObjectByGUID)
CB(API_METADATA_GENERATEKEY, GenerateKey)
END_DISPATCH;
#undef CBCLASS