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4349 | Serge | 1 | /* |
2 | * DSP utils |
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3 | * Copyright (c) 2000, 2001, 2002 Fabrice Bellard |
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4 | * Copyright (c) 2002-2004 Michael Niedermayer |
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5 | * |
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6 | * This file is part of FFmpeg. |
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7 | * |
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8 | * FFmpeg is free software; you can redistribute it and/or |
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9 | * modify it under the terms of the GNU Lesser General Public |
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10 | * License as published by the Free Software Foundation; either |
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11 | * version 2.1 of the License, or (at your option) any later version. |
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12 | * |
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13 | * FFmpeg is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 | * Lesser General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU Lesser General Public |
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19 | * License along with FFmpeg; if not, write to the Free Software |
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20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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21 | */ |
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22 | |||
23 | /** |
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24 | * @file |
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25 | * DSP utils. |
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26 | * note, many functions in here may use MMX which trashes the FPU state, it is |
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27 | * absolutely necessary to call emms_c() between dsp & float/double code |
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28 | */ |
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29 | |||
30 | #ifndef AVCODEC_DSPUTIL_H |
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31 | #define AVCODEC_DSPUTIL_H |
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32 | |||
33 | #include "libavutil/intreadwrite.h" |
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34 | #include "avcodec.h" |
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35 | #include "rnd_avg.h" |
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36 | |||
37 | /* encoding scans */ |
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38 | extern const uint8_t ff_alternate_horizontal_scan[64]; |
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39 | extern const uint8_t ff_alternate_vertical_scan[64]; |
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40 | extern const uint8_t ff_zigzag_direct[64]; |
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41 | extern const uint8_t ff_zigzag248_direct[64]; |
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42 | |||
43 | /* pixel operations */ |
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44 | #define MAX_NEG_CROP 1024 |
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45 | |||
46 | /* temporary */ |
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47 | extern uint32_t ff_squareTbl[512]; |
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48 | extern const uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP]; |
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49 | |||
50 | void ff_put_pixels8x8_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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51 | void ff_avg_pixels8x8_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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52 | void ff_put_pixels16x16_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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53 | void ff_avg_pixels16x16_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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54 | |||
55 | /* RV40 functions */ |
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56 | void ff_put_rv40_qpel16_mc33_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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57 | void ff_avg_rv40_qpel16_mc33_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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58 | void ff_put_rv40_qpel8_mc33_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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59 | void ff_avg_rv40_qpel8_mc33_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride); |
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60 | |||
61 | void ff_gmc_c(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy, |
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62 | int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height); |
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63 | |||
64 | /* minimum alignment rules ;) |
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65 | If you notice errors in the align stuff, need more alignment for some ASM code |
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66 | for some CPU or need to use a function with less aligned data then send a mail |
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67 | to the ffmpeg-devel mailing list, ... |
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68 | |||
69 | !warning These alignments might not match reality, (missing attribute((align)) |
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70 | stuff somewhere possible). |
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71 | I (Michael) did not check them, these are just the alignments which I think |
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72 | could be reached easily ... |
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73 | |||
74 | !future video codecs might need functions with less strict alignment |
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75 | */ |
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76 | |||
77 | /* add and put pixel (decoding) */ |
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78 | // blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16 |
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79 | //h for op_pixels_func is limited to {width/2, width} but never larger than 16 and never smaller than 4 |
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80 | typedef void (*tpel_mc_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int w, int h); |
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81 | typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, ptrdiff_t stride); |
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82 | |||
83 | typedef void (*op_fill_func)(uint8_t *block/*align width (8 or 16)*/, uint8_t value, int line_size, int h); |
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84 | |||
85 | #define DEF_OLD_QPEL(name)\ |
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86 | void ff_put_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, ptrdiff_t stride);\ |
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87 | void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, ptrdiff_t stride);\ |
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88 | void ff_avg_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, ptrdiff_t stride); |
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89 | |||
90 | DEF_OLD_QPEL(qpel16_mc11_old_c) |
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91 | DEF_OLD_QPEL(qpel16_mc31_old_c) |
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92 | DEF_OLD_QPEL(qpel16_mc12_old_c) |
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93 | DEF_OLD_QPEL(qpel16_mc32_old_c) |
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94 | DEF_OLD_QPEL(qpel16_mc13_old_c) |
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95 | DEF_OLD_QPEL(qpel16_mc33_old_c) |
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96 | DEF_OLD_QPEL(qpel8_mc11_old_c) |
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97 | DEF_OLD_QPEL(qpel8_mc31_old_c) |
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98 | DEF_OLD_QPEL(qpel8_mc12_old_c) |
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99 | DEF_OLD_QPEL(qpel8_mc32_old_c) |
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100 | DEF_OLD_QPEL(qpel8_mc13_old_c) |
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101 | DEF_OLD_QPEL(qpel8_mc33_old_c) |
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102 | |||
103 | /* motion estimation */ |
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104 | // h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller than 2 |
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105 | // although currently h<4 is not used as functions with width <8 are neither used nor implemented |
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106 | typedef int (*me_cmp_func)(void /*MpegEncContext*/ *s, uint8_t *blk1/*align width (8 or 16)*/, uint8_t *blk2/*align 1*/, int line_size, int h)/* __attribute__ ((const))*/; |
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107 | |||
108 | /** |
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109 | * Scantable. |
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110 | */ |
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111 | typedef struct ScanTable{ |
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112 | const uint8_t *scantable; |
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113 | uint8_t permutated[64]; |
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114 | uint8_t raster_end[64]; |
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115 | } ScanTable; |
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116 | |||
117 | void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable); |
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118 | void ff_init_scantable_permutation(uint8_t *idct_permutation, |
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119 | int idct_permutation_type); |
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120 | |||
121 | /** |
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122 | * DSPContext. |
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123 | */ |
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124 | typedef struct DSPContext { |
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125 | /* pixel ops : interface with DCT */ |
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126 | void (*get_pixels)(int16_t *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size); |
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127 | void (*diff_pixels)(int16_t *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride); |
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128 | void (*put_pixels_clamped)(const int16_t *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size); |
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129 | void (*put_signed_pixels_clamped)(const int16_t *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size); |
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130 | void (*add_pixels_clamped)(const int16_t *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size); |
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131 | void (*add_pixels8)(uint8_t *pixels, int16_t *block, int line_size); |
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132 | int (*sum_abs_dctelem)(int16_t *block/*align 16*/); |
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133 | /** |
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134 | * translational global motion compensation. |
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135 | */ |
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136 | void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder); |
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137 | /** |
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138 | * global motion compensation. |
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139 | */ |
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140 | void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy, |
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141 | int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height); |
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142 | void (*clear_block)(int16_t *block/*align 16*/); |
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143 | void (*clear_blocks)(int16_t *blocks/*align 16*/); |
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144 | int (*pix_sum)(uint8_t * pix, int line_size); |
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145 | int (*pix_norm1)(uint8_t * pix, int line_size); |
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146 | // 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4 |
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147 | |||
148 | me_cmp_func sad[6]; /* identical to pix_absAxA except additional void * */ |
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149 | me_cmp_func sse[6]; |
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150 | me_cmp_func hadamard8_diff[6]; |
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151 | me_cmp_func dct_sad[6]; |
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152 | me_cmp_func quant_psnr[6]; |
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153 | me_cmp_func bit[6]; |
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154 | me_cmp_func rd[6]; |
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155 | me_cmp_func vsad[6]; |
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156 | me_cmp_func vsse[6]; |
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157 | me_cmp_func nsse[6]; |
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158 | me_cmp_func w53[6]; |
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159 | me_cmp_func w97[6]; |
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160 | me_cmp_func dct_max[6]; |
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161 | me_cmp_func dct264_sad[6]; |
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162 | |||
163 | me_cmp_func me_pre_cmp[6]; |
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164 | me_cmp_func me_cmp[6]; |
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165 | me_cmp_func me_sub_cmp[6]; |
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166 | me_cmp_func mb_cmp[6]; |
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167 | me_cmp_func ildct_cmp[6]; //only width 16 used |
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168 | me_cmp_func frame_skip_cmp[6]; //only width 8 used |
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169 | |||
170 | int (*ssd_int8_vs_int16)(const int8_t *pix1, const int16_t *pix2, |
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171 | int size); |
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172 | |||
173 | /** |
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174 | * Thirdpel motion compensation with rounding (a+b+1)>>1. |
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175 | * this is an array[12] of motion compensation functions for the 9 thirdpe |
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176 | * positions |
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177 | * *pixels_tab[ xthirdpel + 4*ythirdpel ] |
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178 | * @param block destination where the result is stored |
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179 | * @param pixels source |
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180 | * @param line_size number of bytes in a horizontal line of block |
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181 | * @param h height |
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182 | */ |
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183 | tpel_mc_func put_tpel_pixels_tab[11]; //FIXME individual func ptr per width? |
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184 | tpel_mc_func avg_tpel_pixels_tab[11]; //FIXME individual func ptr per width? |
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185 | |||
186 | qpel_mc_func put_qpel_pixels_tab[2][16]; |
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187 | qpel_mc_func avg_qpel_pixels_tab[2][16]; |
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188 | qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16]; |
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189 | qpel_mc_func put_mspel_pixels_tab[8]; |
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190 | |||
191 | me_cmp_func pix_abs[2][4]; |
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192 | |||
193 | /* huffyuv specific */ |
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194 | void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w); |
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195 | void (*diff_bytes)(uint8_t *dst/*align 16*/, const uint8_t *src1/*align 16*/, const uint8_t *src2/*align 1*/,int w); |
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196 | /** |
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197 | * subtract huffyuv's variant of median prediction |
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198 | * note, this might read from src1[-1], src2[-1] |
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199 | */ |
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200 | void (*sub_hfyu_median_prediction)(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int w, int *left, int *left_top); |
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201 | void (*add_hfyu_median_prediction)(uint8_t *dst, const uint8_t *top, const uint8_t *diff, int w, int *left, int *left_top); |
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202 | int (*add_hfyu_left_prediction)(uint8_t *dst, const uint8_t *src, int w, int left); |
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203 | void (*add_hfyu_left_prediction_bgr32)(uint8_t *dst, const uint8_t *src, int w, int *red, int *green, int *blue, int *alpha); |
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204 | /* this might write to dst[w] */ |
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205 | void (*bswap_buf)(uint32_t *dst, const uint32_t *src, int w); |
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206 | void (*bswap16_buf)(uint16_t *dst, const uint16_t *src, int len); |
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207 | |||
208 | void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale); |
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209 | void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale); |
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210 | |||
211 | /* assume len is a multiple of 8, and arrays are 16-byte aligned */ |
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212 | void (*vector_clipf)(float *dst /* align 16 */, const float *src /* align 16 */, float min, float max, int len /* align 16 */); |
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213 | |||
214 | /* (I)DCT */ |
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215 | void (*fdct)(int16_t *block/* align 16*/); |
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216 | void (*fdct248)(int16_t *block/* align 16*/); |
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217 | |||
218 | /* IDCT really*/ |
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219 | void (*idct)(int16_t *block/* align 16*/); |
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220 | |||
221 | /** |
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222 | * block -> idct -> clip to unsigned 8 bit -> dest. |
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223 | * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...) |
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224 | * @param line_size size in bytes of a horizontal line of dest |
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225 | */ |
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226 | void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, int16_t *block/*align 16*/); |
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227 | |||
228 | /** |
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229 | * block -> idct -> add dest -> clip to unsigned 8 bit -> dest. |
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230 | * @param line_size size in bytes of a horizontal line of dest |
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231 | */ |
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232 | void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, int16_t *block/*align 16*/); |
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233 | |||
234 | /** |
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235 | * idct input permutation. |
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236 | * several optimized IDCTs need a permutated input (relative to the normal order of the reference |
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237 | * IDCT) |
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238 | * this permutation must be performed before the idct_put/add, note, normally this can be merged |
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239 | * with the zigzag/alternate scan |
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240 | * an example to avoid confusion: |
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241 | * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...) |
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242 | * - (x -> reference dct -> reference idct -> x) |
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243 | * - (x -> reference dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x) |
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244 | * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...) |
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245 | */ |
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246 | uint8_t idct_permutation[64]; |
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247 | int idct_permutation_type; |
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248 | #define FF_NO_IDCT_PERM 1 |
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249 | #define FF_LIBMPEG2_IDCT_PERM 2 |
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250 | #define FF_SIMPLE_IDCT_PERM 3 |
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251 | #define FF_TRANSPOSE_IDCT_PERM 4 |
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252 | #define FF_PARTTRANS_IDCT_PERM 5 |
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253 | #define FF_SSE2_IDCT_PERM 6 |
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254 | |||
255 | int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale); |
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256 | void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale); |
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257 | #define BASIS_SHIFT 16 |
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258 | #define RECON_SHIFT 6 |
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259 | |||
260 | void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w, int h, int sides); |
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261 | #define EDGE_WIDTH 16 |
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262 | #define EDGE_TOP 1 |
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263 | #define EDGE_BOTTOM 2 |
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264 | |||
265 | void (*shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height); |
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266 | |||
267 | /** |
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268 | * Calculate scalar product of two vectors. |
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269 | * @param len length of vectors, should be multiple of 16 |
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270 | */ |
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271 | int32_t (*scalarproduct_int16)(const int16_t *v1, const int16_t *v2/*align 16*/, int len); |
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272 | /* ape functions */ |
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273 | /** |
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274 | * Calculate scalar product of v1 and v2, |
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275 | * and v1[i] += v3[i] * mul |
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276 | * @param len length of vectors, should be multiple of 16 |
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277 | */ |
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278 | int32_t (*scalarproduct_and_madd_int16)(int16_t *v1/*align 16*/, const int16_t *v2, const int16_t *v3, int len, int mul); |
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279 | |||
280 | /** |
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281 | * Apply symmetric window in 16-bit fixed-point. |
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282 | * @param output destination array |
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283 | * constraints: 16-byte aligned |
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284 | * @param input source array |
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285 | * constraints: 16-byte aligned |
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286 | * @param window window array |
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287 | * constraints: 16-byte aligned, at least len/2 elements |
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288 | * @param len full window length |
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289 | * constraints: multiple of ? greater than zero |
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290 | */ |
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291 | void (*apply_window_int16)(int16_t *output, const int16_t *input, |
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292 | const int16_t *window, unsigned int len); |
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293 | |||
294 | /** |
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295 | * Clip each element in an array of int32_t to a given minimum and maximum value. |
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296 | * @param dst destination array |
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297 | * constraints: 16-byte aligned |
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298 | * @param src source array |
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299 | * constraints: 16-byte aligned |
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300 | * @param min minimum value |
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301 | * constraints: must be in the range [-(1 << 24), 1 << 24] |
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302 | * @param max maximum value |
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303 | * constraints: must be in the range [-(1 << 24), 1 << 24] |
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304 | * @param len number of elements in the array |
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305 | * constraints: multiple of 32 greater than zero |
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306 | */ |
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307 | void (*vector_clip_int32)(int32_t *dst, const int32_t *src, int32_t min, |
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308 | int32_t max, unsigned int len); |
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309 | |||
310 | op_fill_func fill_block_tab[2]; |
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311 | } DSPContext; |
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312 | |||
313 | void ff_dsputil_static_init(void); |
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314 | void ff_dsputil_init(DSPContext* p, AVCodecContext *avctx); |
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315 | void avpriv_dsputil_init(DSPContext* p, AVCodecContext *avctx); |
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316 | attribute_deprecated void dsputil_init(DSPContext* c, AVCodecContext *avctx); |
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317 | |||
318 | int ff_check_alignment(void); |
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319 | |||
320 | void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type); |
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321 | |||
322 | void ff_dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx); |
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323 | void ff_dsputil_init_arm(DSPContext* c, AVCodecContext *avctx); |
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324 | void ff_dsputil_init_bfin(DSPContext* c, AVCodecContext *avctx); |
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325 | void ff_dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx); |
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326 | void ff_dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx); |
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327 | void ff_dsputil_init_vis(DSPContext* c, AVCodecContext *avctx); |
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328 | void ff_dsputil_init_x86(DSPContext* c, AVCodecContext *avctx); |
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329 | |||
330 | void ff_dsputil_init_dwt(DSPContext *c); |
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331 | |||
332 | #endif /* AVCODEC_DSPUTIL_H */><>><>><>><>8>4> |