mpeg4 4MV encoding
[libav.git] / libavcodec / dsputil.h
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1#ifndef DSPUTIL_H
2#define DSPUTIL_H
3
4#include "common.h"
43f1708f 5#include "avcodec.h"
de6d9b64 6
44eb4951 7//#define DEBUG
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8/* dct code */
9typedef short DCTELEM;
10
11void jpeg_fdct_ifast (DCTELEM *data);
12
13void j_rev_dct (DCTELEM *data);
14
15void fdct_mmx(DCTELEM *block);
16
17void (*av_fdct)(DCTELEM *block);
18
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19/* encoding scans */
20extern UINT8 ff_alternate_horizontal_scan[64];
21extern UINT8 ff_alternate_vertical_scan[64];
22extern UINT8 zigzag_direct[64];
23
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24/* permutation table */
25extern UINT8 permutation[64];
26
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27/* pixel operations */
28#define MAX_NEG_CROP 384
29
30/* temporary */
31extern UINT32 squareTbl[512];
0cfa9713 32extern UINT8 cropTbl[256 + 2 * MAX_NEG_CROP];
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33
34void dsputil_init(void);
35
36/* pixel ops : interface with DCT */
37
4af7bcc1 38extern void (*ff_idct)(DCTELEM *block);
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39extern void (*get_pixels)(DCTELEM *block, const UINT8 *pixels, int line_size);
40extern void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
41extern void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
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42extern void (*gmc1)(UINT8 *dst, UINT8 *src, int srcStride, int h, int x16, int y16, int rounder);
43
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44
45void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size);
46void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
47void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
48
49/* add and put pixel (decoding) */
50typedef void (*op_pixels_func)(UINT8 *block, const UINT8 *pixels, int line_size, int h);
44eb4951 51typedef void (*qpel_mc_func)(UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my);
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52
53extern op_pixels_func put_pixels_tab[4];
54extern op_pixels_func avg_pixels_tab[4];
55extern op_pixels_func put_no_rnd_pixels_tab[4];
56extern op_pixels_func avg_no_rnd_pixels_tab[4];
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57extern qpel_mc_func qpel_mc_rnd_tab[16];
58extern qpel_mc_func qpel_mc_no_rnd_tab[16];
59
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60
61/* sub pixel (encoding) */
62extern void (*sub_pixels_tab[4])(DCTELEM *block, const UINT8 *pixels, int line_size, int h);
63
64#define sub_pixels_2(block, pixels, line_size, dxy) \
65 sub_pixels_tab[dxy](block, pixels, line_size, 8)
66
67/* motion estimation */
68
ba6802de 69typedef int (*op_pixels_abs_func)(UINT8 *blk1, UINT8 *blk2, int line_size);
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70
71extern op_pixels_abs_func pix_abs16x16;
72extern op_pixels_abs_func pix_abs16x16_x2;
73extern op_pixels_abs_func pix_abs16x16_y2;
74extern op_pixels_abs_func pix_abs16x16_xy2;
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75extern op_pixels_abs_func pix_abs8x8;
76extern op_pixels_abs_func pix_abs8x8_x2;
77extern op_pixels_abs_func pix_abs8x8_y2;
78extern op_pixels_abs_func pix_abs8x8_xy2;
79
80int pix_abs16x16_c(UINT8 *blk1, UINT8 *blk2, int lx);
81int pix_abs16x16_x2_c(UINT8 *blk1, UINT8 *blk2, int lx);
82int pix_abs16x16_y2_c(UINT8 *blk1, UINT8 *blk2, int lx);
83int pix_abs16x16_xy2_c(UINT8 *blk1, UINT8 *blk2, int lx);
de6d9b64 84
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85static inline int block_permute_op(int j)
86{
5a240838 87 return permutation[j];
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88}
89
90void block_permute(INT16 *block);
91
3d03c0a2 92#if defined(HAVE_MMX)
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93
94#define MM_MMX 0x0001 /* standard MMX */
95#define MM_3DNOW 0x0004 /* AMD 3DNOW */
96#define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
97#define MM_SSE 0x0008 /* SSE functions */
98#define MM_SSE2 0x0010 /* PIV SSE2 functions */
99
100extern int mm_flags;
101
102int mm_support(void);
103
104static inline void emms(void)
105{
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106 __asm __volatile ("emms;":::"memory");
107}
108
109#define emms_c() \
110{\
111 if (mm_flags & MM_MMX)\
112 emms();\
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113}
114
115#define __align8 __attribute__ ((aligned (8)))
116
117void dsputil_init_mmx(void);
118
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119#elif defined(ARCH_ARMV4L)
120
121#define emms_c()
122
123/* This is to use 4 bytes read to the IDCT pointers for some 'zero'
124 line ptimizations */
125#define __align8 __attribute__ ((aligned (4)))
126
127void dsputil_init_armv4l(void);
128
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129#elif defined(HAVE_MLIB)
130
131#define emms_c()
132
133/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
134#define __align8 __attribute__ ((aligned (8)))
135
136void dsputil_init_mlib(void);
137
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138#elif defined(ARCH_ALPHA)
139
140#define emms_c()
141#define __align8 __attribute__ ((aligned (8)))
142
143void dsputil_init_alpha(void);
144
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145#else
146
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147#define emms_c()
148
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149#define __align8
150
151#endif
152
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153/* PSNR */
154void get_psnr(UINT8 *orig_image[3], UINT8 *coded_image[3],
155 int orig_linesize[3], int coded_linesize,
156 AVCodecContext *avctx);
157
de6d9b64 158#endif