Lib/QTheoraEx/FrameDecoder.h

   1 /* FrameDecoder.h */
   2 /* 2009/06/29     */
   3
   4 #pragma once
   5
   6 #include "BitReader.h"
   7
   8 #include "MemoryPool.h"
   9
  10 #include "BlockIndex.h"
  11
  12 #include "SetupDecoder.h"
  13
  14 /* QT_FrameHeader */
  15 struct QT_FrameHeader {
  16
  17         UINT8 Type;
  18
  19         UINT8 NQIS;
  20         UINT8 QIS[3];
  21
  22 }; /* QT_FrameHeader */
  23
  24 typedef struct QT_FrameHeader FrameHeader_t;
  25
  26 /* DequantizeMatrix */
  27 struct DequantizeMatrix {
  28
  29         INT16 Matrix[2][3][64];
  30
  31 }; /* DequantizeMatrix */
  32
  33 typedef struct DequantizeMatrix DequantizeMatrix_t;
  34
  35 /* LoopFilter */
  36 struct LoopFilter {
  37
  38         INT16 Delta[0x100];
  39
  40         INT32 Limit;
  41
  42 }; /* LoopFilter */
  43
  44 typedef struct LoopFilter LoopFilter_t;
  45
  46 /* Plane */
  47 struct Plane {
  48
  49         UINT8* Plane;
  50         INT32  Pitch;
  51         INT32  CX;
  52         INT32  CY;
  53
  54 }; /* Plane */
  55
  56 typedef struct Plane Plane_t;
  57
  58 /* RunLength */
  59 struct RunLength {
  60
  61         INT32 Bit;
  62         INT32 Run;
  63
  64 }; /* RunLength */
  65
  66 typedef struct RunLength RunLength_t;
  67
  68 /* MotionVector */
  69 struct MotionVector {
  70
  71         INT8 X;
  72         INT8 Y;
  73
  74 }; /* MotionVector */
  75
  76 typedef struct MotionVector MotionVector_t;
  77
  78 /* QT_FrameDecoder */
  79
  80 struct QT_FrameDecoder;
  81
  82 typedef struct QT_FrameDecoder FrameDecoder_t;
  83
  84 struct QT_FrameDecoder {
  85
  86         const BlockIndex_t* Index;
  87
  88         const SetupHeader_t* Setup;
  89
  90         Plane_t  Plane[9];
  91         Plane_t* Frame[3];
  92
  93         FrameHeader_t Header;
  94
  95         DequantizeMatrix_t Dequantize;
  96
  97         LoopFilter_t Filter;
  98
  99         INT32 QIndex;
 100
 101         INT8* SBCoded;
 102
 103         UINT8* Count;
 104
 105         UINT8* MBMode;
 106
 107         UINT8* BMode;
 108
 109         MotionVector_t* MV;
 110
 111         MotionVector_t* MVC;
 112
 113         INT32 BlocksCoded[3];
 114
 115         INT8*  DCTRun;
 116         INT16* DCTCoeff;
 117
 118         INT16* DC;
 119
 120         /* */
 121
 122         INT8*  BRun  [3][64];
 123         INT16* BCoeff[3][64];
 124
 125         /* */
 126
 127         BOOL (*Decode)(FrameDecoder_t*, const VOID*, SIZE_T);
 128
 129 }; /* QT_FrameDecoder */
 130
 131 /* */
 132
 133 #define NOT_CODED -32768
 134
 135 /* */
 136
 137 BOOL QT_FrameDecoder_Setup(
 138         FrameDecoder_t*      t,
 139         const BlockIndex_t*  index,
 140         const SetupHeader_t* setup,
 141         MemoryPool_t*        pool);
 142
 143 BOOL QT_FrameDecoder_DecodeFrame(
 144         FrameDecoder_t* t,
 145         const VOID*     p,
 146         SIZE_T          size);
 147
 148 /* */
 149