diff options
Diffstat (limited to 'mpeglib/lib/mpegplay/jrevdct.h')
-rw-r--r-- | mpeglib/lib/mpegplay/jrevdct.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/mpeglib/lib/mpegplay/jrevdct.h b/mpeglib/lib/mpegplay/jrevdct.h new file mode 100644 index 00000000..d280c2ce --- /dev/null +++ b/mpeglib/lib/mpegplay/jrevdct.h @@ -0,0 +1,57 @@ +/* + definittion for reverse dct + Copyright (C) 1999 Martin Vogt + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as published by + the Free Software Foundation. + + For more information look at the file COPYRIGHT in this package + + */ + + +#ifndef __JREVDCT_H +#define __JREVDCT_H + +extern "C" { +#include <string.h> +} + +#include "proto.h" + + +#ifndef XMD_H +typedef int INT32; +typedef short INT16; +typedef char INT8; +#endif +typedef unsigned int UINT32; +typedef unsigned short UINT16; +typedef unsigned char UINT8; + + + +/* Definition of Contant integer scale factor. */ + +#define CONST_BITS 13 + +/* Misc DCT definitions */ +#define DCTSIZE 8 /* The basic DCT block is 8x8 samples */ +#define DCTSIZE2 64 /* DCTSIZE squared; # of elements in a block */ + +#define GLOBAL /* a function referenced thru EXTERNs */ + +typedef short DCTELEM; +typedef DCTELEM DCTBLOCK[DCTSIZE2]; + + +/* jrevdct.c */ +void init_pre_idct (void); +void j_rev_dct_sparse (DCTBLOCK data , int pos); +void j_rev_dct (DCTBLOCK data); +void j_rev_dct_sparse (DCTBLOCK data , int pos); +void j_rev_dct (DCTBLOCK data); + + +#endif |