winamp/Src/Plugins/Input/in_mp3/Lyrics3.cpp

193 lines
3.3 KiB
C++

#include <windows.h>
#include "Lyrics3.h"
#include "config.h"
#include <strsafe.h>
// http://www.id3.org/Lyrics3v2
Lyrics3::Lyrics3()
{
artist=0;
title=0;
album=0;
hasData=false;
dirty=false;
}
Lyrics3::~Lyrics3()
{
free(artist);
free(title);
free(album);
}
static wchar_t *CopyField(const uint8_t *buffer, uint32_t size)
{
int converted = MultiByteToWideChar(28591, 0,(LPCSTR)buffer, size, 0, 0);
wchar_t *str = (wchar_t *)calloc((converted+1), sizeof(wchar_t));
if (str)
{
converted = MultiByteToWideChar(28591, 0, (LPCSTR)buffer, size, str, converted);
str[converted]=0;
}
return str;
}
int Lyrics3::Decode(const void *data, size_t datalen)
{
if (!config_parse_lyrics3)
return 1;
if (memcmp(data, "LYRICSBEGIN", 11) == 0)
{
hasData = true;
datalen-=11;
uint8_t *buffer = (uint8_t *)data+11;
while (datalen > 8)
{
uint8_t fid[4] = {0};
uint8_t sizeT[6] = {0};
uint32_t size;
fid[3] = 0;
sizeT[5] = 0;
memcpy(fid, buffer, 3);
buffer+=3; datalen-=3;
memcpy(sizeT, buffer, 5);
buffer+=5; datalen-=5;
size = strtoul((char *)sizeT, 0, 10);
if (datalen >= size)
{
/*if ( memcmp(fid, "IND", 3) == 0) // the IND field
{
if ( buff2[ posn + 8 + 1 ] == '1')
stampsUsed = true;
}
else */
if (memcmp(fid, "ETT", 3) == 0) // the TITLE field
{
title = CopyField(buffer, size);
}
else if (strcmp((char *) fid, "EAR") == 0) // the ARTIST field
{
artist = CopyField(buffer, size);
}
else if (strcmp((char *) fid, "EAL") == 0) // the ALBUM field
{
album = CopyField(buffer, size);
}
/*else if ( strcmp((char *) fid, "LYR") == 0) // the LYRICS field
{
char *text;
luint newSize;
newSize = ID3_CRLFtoLF((char *) & buff2[ posn + 8 ], size);
if ( stampsUsed)
newSize = ID3_StripTimeStamps((char *) & buff2[ posn + 8 ], newSize);
if ( text = (char*)malloc(newSize + 1))
{
text[ newSize ] = 0;
memcpy( text, &buff2[ posn + 8 ], newSize);
ID3_AddLyrics( this, text);
free(text);
}
else
ID3_THROW( ID3E_NoMemory);
}*/
datalen-=size;
buffer+=size;
}
else
break;
}
return 0;
}
return 1;
}
int Lyrics3::GetString(const char *tag, wchar_t *data, int dataLen)
{
if (!hasData)
return 0;
if (!_stricmp(tag, "title"))
{
if (title && *title)
{
StringCchCopyW(data, dataLen, title);
return 1;
}
return -1;
}
else if (!_stricmp(tag, "artist"))
{
if (artist && *artist)
{
StringCchCopyW(data, dataLen, artist);
return 1;
}
return -1;
}
else if (!_stricmp(tag, "album"))
{
if (album && *album)
{
StringCchCopyW(data, dataLen, album);
return 1;
}
return -1;
}
return 0;
}
int Lyrics3::SetString(const char *tag, const wchar_t *data)
{
int ret=0;
if (!_stricmp(tag, "title"))
{
if (title) free(title);
title = _wcsdup(data);
ret = 1;
}
else if (!_stricmp(tag, "artist"))
{
if ( artist ) free(artist);
artist = _wcsdup(data);
ret = 1;
}
else if (!_stricmp(tag, "album"))
{
if ( album ) free(album);
album = _wcsdup(data);
ret = 1;
}
if(ret)
{
hasData=true;
}
return ret;
}
void Lyrics3::Clear()
{
free(artist); artist=0;
free(album); album=0;
free(title); title=0;
dirty=true;
hasData=false;
}