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#include "ID3v1Metadata.h"
#include "metadata/MetadataKeys.h"
#include <stdlib.h>
api_metadata *ID3v1Metadata::metadata_api=0;
ID3v1Metadata::ID3v1Metadata()
{
id3v1_tag=0;
}
ID3v1Metadata::~ID3v1Metadata()
{
}
int ID3v1Metadata::Initialize(api_metadata *metadata_api)
{
ID3v1Metadata::metadata_api = metadata_api;
return NErr_Success;
}
int ID3v1Metadata::Initialize(nsid3v1_tag_t tag)
{
id3v1_tag = tag;
this->metadata_api = metadata_api;
return NErr_Success;
}
/* ifc_metadata implementation */
int ID3v1Metadata::Metadata_GetField(int field, unsigned int index, nx_string_t *value)
{
if (!id3v1_tag)
return NErr_Unknown;
switch (field)
{
case MetadataKeys::TITLE:
return index?NErr_EndOfEnumeration:NSID3v1_Get_Title(id3v1_tag, value);
case MetadataKeys::ARTIST:
return index?NErr_EndOfEnumeration:NSID3v1_Get_Artist(id3v1_tag, value);
case MetadataKeys::ALBUM:
return index?NErr_EndOfEnumeration:NSID3v1_Get_Album(id3v1_tag, value);
case MetadataKeys::YEAR:
return index?NErr_EndOfEnumeration:NSID3v1_Get_Year(id3v1_tag, value);
case MetadataKeys::COMMENT:
return index?NErr_EndOfEnumeration:NSID3v1_Get_Comment(id3v1_tag, value);
case MetadataKeys::TRACK:
return index?NErr_EndOfEnumeration:NSID3v1_Get_Track(id3v1_tag, value);
case MetadataKeys::GENRE:
{
if (!metadata_api)
return NErr_Unknown;
if (index > 0)
return NErr_EndOfEnumeration;
uint8_t genre_id;
int ret = NSID3v1_Int_Get_Genre(id3v1_tag, &genre_id);
if (ret != NErr_Success)
return ret;
nx_string_t genre;
ret = metadata_api->GetGenre(genre_id, &genre);
if (ret == NErr_Success)
{
*value = NXStringRetain(genre);
return NErr_Success;
}
else if (ret == NErr_Unknown)
{
return NErr_Empty;
}
else
{
return ret;
}
}
}
return NErr_Unknown;
}
int ID3v1Metadata::Metadata_GetInteger(int field, unsigned int index, int64_t *value)
{
if (!id3v1_tag)
return NErr_Unknown;
switch (field)
{
case MetadataKeys::YEAR:
{
if (index > 0)
return NErr_EndOfEnumeration;
unsigned int year;
int ret = NSID3v1_Int_Get_Year(id3v1_tag, &year);
if (ret == NErr_Success)
*value = (int64_t)year;
return ret;
}
case MetadataKeys::TRACK:
{
if (index > 0)
return NErr_EndOfEnumeration;
uint8_t track;
int ret = NSID3v1_Int_Get_Track(id3v1_tag, &track);
if (ret == NErr_Success)
*value = (int64_t)track;
return ret;
}
}
return NErr_Unknown;
}
int ID3v1Metadata::Metadata_GetReal(int field, unsigned int index, double *value)
{
if (!id3v1_tag)
return NErr_Unknown;
return NErr_Unknown;
}
int ID3v1Metadata::MetadataEditor_SetField(int field, unsigned int index, nx_string_t value)
{
if (!id3v1_tag)
return NErr_NullPointer;
switch (field)
{
case MetadataKeys::TITLE:
return index?NErr_EndOfEnumeration:NSID3v1_Set_Title(id3v1_tag, value);
case MetadataKeys::ARTIST:
return index?NErr_EndOfEnumeration:NSID3v1_Set_Artist(id3v1_tag, value);
case MetadataKeys::ALBUM:
return index?NErr_EndOfEnumeration:NSID3v1_Set_Album(id3v1_tag, value);
case MetadataKeys::YEAR:
return index?NErr_EndOfEnumeration:NSID3v1_Set_Year(id3v1_tag, value);
case MetadataKeys::COMMENT:
return index?NErr_EndOfEnumeration:NSID3v1_Set_Comment(id3v1_tag, value);
case MetadataKeys::TRACK:
return index?NErr_EndOfEnumeration:NSID3v1_Set_Track(id3v1_tag, value);
case MetadataKeys::GENRE:
{
if (!metadata_api)
return NErr_Unknown;
if (index > 0)
return NErr_EndOfEnumeration;
uint8_t genre_id;
int ret = metadata_api->GetGenreID(value, &genre_id);
if (ret == NErr_Success)
return NSID3v1_Int_Set_Genre(id3v1_tag, genre_id);
else
return NSID3v1_Int_Set_Genre(id3v1_tag, 0xFF);
}
}
return NErr_Unknown;
}
int ID3v1Metadata::MetadataEditor_SetInteger(int field, unsigned int index, int64_t value)
{
if (!id3v1_tag)
return NErr_NullPointer;
if (index != 0)
return NErr_EndOfEnumeration;
switch (field)
{
case MetadataKeys::YEAR:
return NSID3v1_Int_Set_Year(id3v1_tag, (unsigned int)value);
case MetadataKeys::TRACK:
if (value < 0 || value > 255)
return NErr_ParameterOutOfRange;
return NSID3v1_Int_Set_Track(id3v1_tag, (uint8_t)value);
case MetadataKeys::GENRE:
if (value < 0 || value > 255)
return NErr_ParameterOutOfRange;
return NSID3v1_Int_Set_Genre(id3v1_tag, (uint8_t)value);
}
return NErr_Unknown;
}
#undef DESCRIPTION
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