ref: bfbcaae2b46a2dccc03c21a65de1dfcfd777f54d
dir: /plugins/winamp/FILTERS.H/
//////////////////////////////////////////////////////
// GENERAL PURPOSE DEFS FOR CREATING CUSTOM FILTERS //
//////////////////////////////////////////////////////
typedef struct riffspecialdata_t
{ HANDLE hSpecialData;
HANDLE hData; // Actual data handle
DWORD dwSize; // size of data in handle
DWORD dwExtra; // optional extra data (usually a count)
char szListType[8]; // Parent list type (usually "WAVE" or "INFO", or "adtl")
char szType[8]; // Usually a four character code for data, but can be up to 7 chars
} SPECIALDATA;
// "CUE " dwExtra=number of cues, each cue is 8 bytes ([4] name [4] sample offset)
// "LTXT" dwExtra=number of items, each one is 8 bytes ([4] ltxt len [4] name [4] cue length [4] purpose [n] data)
// "NOTE" dwExtra=number of strings, each one is n bytes ([4] name [n-4] length zero term)
// "LABL" dwExtra=number of strings, each one is n bytes ([4] name [n-4] length zero term)
// "PLST" dwExtra=number if items, each one is 16 bytes ([4] name [4] dwLen [4] dwLoops [4] dwMode)
// For special data, .FLT must implement FilterGetFirstSpecialData and FilterGetNextSpecialData
typedef DWORD FOURCC; // a four character code
struct cue_type { DWORD dwName;
DWORD dwPosition;
FOURCC fccChunk;
DWORD dwChunkStart;
DWORD dwBlockStart;
DWORD dwSampleOffset;
};
struct play_type {DWORD dwName;
DWORD dwLength;
DWORD dwLoops;
};
typedef struct coolquery_tag
{char szName[24];
char szCopyright[80];
// rate table, bits are set for modes that can be handled
WORD Quad32; // Quads are 3-D encoded
WORD Quad16;
WORD Quad8;
WORD Stereo8; // rates are from lowest bit:
WORD Stereo12; // bit 0 set: 5500 (5512.5)
WORD Stereo16; // bit 1 set: 11025 (11K)
WORD Stereo24; // bit 2 set: 22050 (22K)
WORD Stereo32; // bit 3 set: 32075 (32K, or 32000)
WORD Mono8; // bit 4 set: 44100 (44K)
WORD Mono12; // bit 5 set: 48000 (48K)
WORD Mono16; // bit 6 set: 88200 (88K) (future ultra-sonic rates?)
WORD Mono24; // bit 7 set: 96000 (96K)
WORD Mono32; // bit 8 set: 132300 (132K)
// bit 9 set: 176400 (176K)
DWORD dwFlags;
char szExt[4];
long lChunkSize;
char szExt2[4];
char szExt3[4];
char szExt4[4];
} COOLQUERY;
#define R_5500 1
#define R_11025 2
#define R_22050 4
#define R_32075 8
#define R_44100 16
#define R_48000 32
#define R_88200 64
#define R_96000 128
#define R_132300 256
#define R_176400 512
#define C_VALIDLIBRARY 1154
#define QF_RATEADJUSTABLE 0x001 // if can handle non-standard sample rates
// if not, only rates in bit rate table understood
#define QF_CANSAVE 0x002
#define QF_CANLOAD 0x004
#define QF_UNDERSTANDSALL 0x008 // will read ANYTHING, so it is the last resort if no other
// formats match
#define QF_READSPECIALFIRST 0x010 // read special info before trying to read data
#define QF_READSPECIALLAST 0x020 // read special info after reading data
#define QF_WRITESPECIALFIRST 0x040 // when writing a file, special info is sent to DLL before data
#define QF_WRITESPECIALLAST 0x080 // when writing, special info is sent to DLL after data
#define QF_HASOPTIONSBOX 0x100 // set if options box implemented
#define QF_NOASKFORCONVERT 0x200 // set to bypass asking for conversion if original in different rate, auto convert
#define QF_NOHEADER 0x400 // set if this is a raw data format with no header
#define QF_CANDO32BITFLOATS 0x800 // set if file format can handle 32-bit sample data for input
#define QF_CANOPENVIRTUAL 0x1000 // Set if data is in Intel 8-bit or 16-bit sample format, or floats
// and the GetDataOffset() function is implemented
// special types are read from and written to DLL in the order below
/*
// special types (particular to Windows waveforms)
#define SP_IART 20
#define SP_ICMT 21
#define SP_ICOP 22
#define SP_ICRD 23
#define SP_IENG 24
#define SP_IGNR 25
#define SP_IKEY 26
#define SP_IMED 27
#define SP_INAM 28
#define SP_ISFT 29
#define SP_ISRC 30
#define SP_ITCH 31
#define SP_ISBJ 32
#define SP_ISRF 33
#define SP_DISP 34
#define SP_CUE 40 // returns number of cues of size cue_type
#define SP_LTXT 41 // returns number of adtl texts of size 8 (4,id and 4,len)
#define SP_NOTE 42 // returns LO=size, HI=number of strings (sz sz sz...)
#define SP_LABL 43 // returns LO=size, HI=number of strings (sz sz sz...)
#define SP_PLST 44 // returns number of playlist entries size play_type
*/