ffmpeg之yuv2rgb_c_24_rgb
1 YUV2RGBFUNC(yuv2rgb_c_24_rgb, uint8_t, 0) 2 LOADCHROMA(0); 3 PUTRGB24(dst_1, py_1, 0); 4 PUTRGB24(dst_2, py_2, 0); 5 6 LOADCHROMA(1); 7 PUTRGB24(dst_2, py_2, 1); 8 PUTRGB24(dst_1, py_1, 1); 9 10 LOADCHROMA(2); 11 PUTRGB24(dst_1, py_1, 2); 12 PUTRGB24(dst_2, py_2, 2); 13 14 LOADCHROMA(3); 15 PUTRGB24(dst_2, py_2, 3); 16 PUTRGB24(dst_1, py_1, 3); 17 ENDYUV2RGBLINE(24, 0) 18 LOADCHROMA(0); 19 PUTRGB24(dst_1, py_1, 0); 20 PUTRGB24(dst_2, py_2, 0); 21 22 LOADCHROMA(1); 23 PUTRGB24(dst_2, py_2, 1); 24 PUTRGB24(dst_1, py_1, 1); 25 ENDYUV2RGBLINE(24, 1) 26 LOADCHROMA(0); 27 PUTRGB24(dst_1, py_1, 0); 28 PUTRGB24(dst_2, py_2, 0); 29 ENDYUV2RGBFUNC()
1 #define PUTRGB24(dst, src, i) \ 2 Y = src[2 * i]; \ 3 dst[6 * i + 0] = r[Y]; \ 4 dst[6 * i + 1] = g[Y]; \ 5 dst[6 * i + 2] = b[Y]; \ 6 Y = src[2 * i + 1]; \ 7 dst[6 * i + 3] = r[Y]; \ 8 dst[6 * i + 4] = g[Y]; \ 9 dst[6 * i + 5] = b[Y];
1 #define LOADCHROMA(i) \ 2 U = pu[i]; \ 3 V = pv[i]; \ 4 r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \ 5 g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \ 6 b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM];
1 #define ENDYUV2RGBLINE(dst_delta, ss) \ 2 pu += 4 >> ss; \ 3 pv += 4 >> ss; \ 4 py_1 += 8 >> ss; \ 5 py_2 += 8 >> ss; \ 6 dst_1 += dst_delta >> ss; \ 7 dst_2 += dst_delta >> ss; \ 8 } \ 9 if (c->dstW & (4 >> ss)) { \ 10 int av_unused Y, U, V; \
1 #define ENDYUV2RGBFUNC() \ 2 } \ 3 } \ 4 return srcSliceH; \ 5 }
1 #define YUV2RGBFUNC(yuv2rgb_c_24_rgb, uint8_t, 0) \ 2 static int yuv2rgb_c_24_rgb(SwsContext *c, const uint8_t *src[], \ 3 int srcStride[], int srcSliceY, int srcSliceH, \ 4 uint8_t *dst[], int dstStride[]) \ 5 { \ 6 int y; \ 7 \ 8 if (!0 && c->srcFormat == AV_PIX_FMT_YUV422P) \ 9 { \ 10 srcStride[1] *= 2; \ 11 srcStride[2] *= 2; \ 12 } \ 13 for (y = 0; y < srcSliceH; y += 2) 14 { \ 15 uint8_t *dst_1 = \ 16 (uint8_t *)(dst[0] + (y + srcSliceY) * dstStride[0]); \ 17 uint8_t *dst_2 = \ 18 (uint8_t *)(dst[0] + (y + srcSliceY + 1) * dstStride[0]); \ 19 uint8_t av_unused *r, *g, *b; \ 20 const uint8_t *py_1 = src[0] + y * srcStride[0]; \ 21 const uint8_t *py_2 = py_1 + srcStride[0]; \ 22 const uint8_t *pu = src[1] + (y >> 1) * srcStride[1]; \ 23 const uint8_t *pv = src[2] + (y >> 1) * srcStride[2]; \ 24 const uint8_t av_unused *pa_1, *pa_2; \ 25 unsigned int h_size = c->dstW >> 3; \ 26 if (0) \ 27 { \ 28 pa_1 = src[3] + y * srcStride[3]; \ 29 pa_2 = pa_1 + srcStride[3]; \ 30 } \ 31 while (h_size--) \ 32 { \ 33 int av_unused U, V, Y; \ 34 U = pu[0]; \ 35 V = pv[0]; \ 36 r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \ 37 g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \ 38 b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM]; 39 40 Y = py_1[2 * 0]; \ 41 dst_1[6 * 0 + 0] = r[Y]; \ 42 dst_1[6 * 0 + 1] = g[Y]; \ 43 dst_1[6 * 0 + 2] = b[Y]; \ 44 Y = py_1[2 * 0 + 1]; \ 45 dst_1[6 * 0 + 3] = r[Y]; \ 46 dst_1[6 * 0 + 4] = g[Y]; \ 47 dst_1[6 * 0 + 5] = b[Y]; 48 49 Y = py_2[2 * 0]; \ 50 dst_2[6 * 0 + 0] = r[Y]; \ 51 dst_2[6 * 0 + 1] = g[Y]; \ 52 dst_2[6 * 0 + 2] = b[Y]; \ 53 Y = py_2[2 * 0 + 1]; \ 54 dst_2[6 * 0 + 3] = r[Y]; \ 55 dst_2[6 * 0 + 4] = g[Y]; \ 56 dst_2[6 * 0 + 5] = b[Y]; 57 58 U = pu[1]; \ 59 V = pv[1]; \ 60 r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \ 61 g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \ 62 b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM]; 63 64 Y = py_2[2 * 1]; \ 65 dst_2[6 * 1 + 0] = r[Y]; \ 66 dst_2[6 * 1 + 1] = g[Y]; \ 67 dst_2[6 * 1 + 2] = b[Y]; \ 68 Y = py_2[2 * 1 + 1]; \ 69 dst_2[6 * 1 + 3] = r[Y]; \ 70 dst_2[6 * 1 + 4] = g[Y]; \ 71 dst_2[6 * 1 + 5] = b[Y]; 72 73 Y = py_1[2 * 1]; \ 74 dst_1[6 * 1 + 0] = r[Y]; \ 75 dst_1[6 * 1 + 1] = g[Y]; \ 76 dst_1[6 * 1 + 2] = b[Y]; \ 77 Y = py_1[2 * 1 + 1]; \ 78 dst_1[6 * 1 + 3] = r[Y]; \ 79 dst_1[6 * 1 + 4] = g[Y]; \ 80 dst_1[6 * 1 + 5] = b[Y]; 81 82 U = pu[2]; \ 83 V = pv[2]; \ 84 r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \ 85 g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \ 86 b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM]; 87 88 Y = py_1[2 * 2]; \ 89 dst_1[6 * 2 + 0] = r[Y]; \ 90 dst_1[6 * 2 + 1] = g[Y]; \ 91 dst_1[6 * 2 + 2] = b[Y]; \ 92 Y = py_1[2 * 2 + 1]; \ 93 dst_1[6 * 2 + 3] = r[Y]; \ 94 dst_1[6 * 2 + 4] = g[Y]; \ 95 dst_1[6 * 2 + 5] = b[Y]; 96 97 Y = py_2[2 * 2]; \ 98 dst_2[6 * 2 + 0] = r[Y]; \ 99 dst_2[6 * 2 + 1] = g[Y]; \ 100 dst_2[6 * 2 + 2] = b[Y]; \ 101 Y = py_2[2 * 2 + 1]; \ 102 dst_2[6 * 2 + 3] = r[Y]; \ 103 dst_2[6 * 2 + 4] = g[Y]; \ 104 dst_2[6 * 2 + 5] = b[Y]; 105 106 U = pu[3]; \ 107 V = pv[3]; \ 108 r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \ 109 g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \ 110 b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM]; 111 112 Y = py_2[2 * 3]; \ 113 dst_2[6 * 3 + 0] = r[Y]; \ 114 dst_2[6 * 3 + 1] = g[Y]; \ 115 dst_2[6 * 3 + 2] = b[Y]; \ 116 Y = py_2[2 * 3 + 1]; \ 117 dst_2[6 * 3 + 3] = r[Y]; \ 118 dst_2[6 * 3 + 4] = g[Y]; \ 119 dst_2[6 * 3 + 5] = b[Y]; 120 121 Y = py_1[2 * 3]; \ 122 dst_1[6 * 3 + 0] = r[Y]; \ 123 dst_1[6 * 3 + 1] = g[Y]; \ 124 dst_1[6 * 3 + 2] = b[Y]; \ 125 Y = py_1[2 * 3 + 1]; \ 126 dst_1[6 * 3 + 3] = r[Y]; \ 127 dst_1[6 * 3 + 4] = g[Y]; \ 128 dst_1[6 * 3 + 5] = b[Y]; 129 130 pu += 4 >> 0; \ 131 pv += 4 >> 0; \ 132 py_1 += 8 >> 0; \ 133 py_2 += 8 >> 0; \ 134 dst_1 += 24 >> 0; \ 135 dst_2 += 24 >> 0; \ 136 } \ 137 if (c->dstW & (4 >> 0)) \ 138 { \ 139 int av_unused Y, U, V; \ 140 141 U = pu[0]; \ 142 V = pv[0]; \ 143 r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \ 144 g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \ 145 b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM]; 146 147 Y = py_1[2 * 0]; \ 148 dst_1[6 * 0 + 0] = r[Y]; \ 149 dst_1[6 * 0 + 1] = g[Y]; \ 150 dst_1[6 * 0 + 2] = b[Y]; \ 151 Y = py_1[2 * 0 + 1]; \ 152 dst_1[6 * 0 + 3] = r[Y]; \ 153 dst_1[6 * 0 + 4] = g[Y]; \ 154 dst_1[6 * 0 + 5] = b[Y]; 155 156 Y = py_2[2 * 0]; \ 157 dst_2[6 * 0 + 0] = r[Y]; \ 158 dst_2[6 * 0 + 1] = g[Y]; \ 159 dst_2[6 * 0 + 2] = b[Y]; \ 160 Y = py_2[2 * 0 + 1]; \ 161 dst_2[6 * 0 + 3] = r[Y]; \ 162 dst_2[6 * 0 + 4] = g[Y]; \ 163 dst_2[6 * 0 + 5] = b[Y]; 164 165 U = pu[1]; \ 166 V = pv[1]; \ 167 r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \ 168 g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \ 169 b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM]; \ 170 171 Y = py_2[2 * 1]; \ 172 dst_2[6 * 1 + 0] = r[Y]; \ 173 dst_2[6 * 1 + 1] = g[Y]; \ 174 dst_2[6 * 1 + 2] = b[Y]; \ 175 Y = py_2[2 * 1 + 1]; \ 176 dst_2[6 * 1 + 3] = r[Y]; \ 177 dst_2[6 * 1 + 4] = g[Y]; \ 178 dst_2[6 * 1 + 5] = b[Y]; 179 180 Y = py_1[2 * 1]; \ 181 dst_1[6 * 1 + 0] = r[Y]; \ 182 dst_1[6 * 1 + 1] = g[Y]; \ 183 dst_1[6 * 1 + 2] = b[Y]; \ 184 Y = py_1[2 * 1 + 1]; \ 185 dst_1[6 * 1 + 3] = r[Y]; \ 186 dst_1[6 * 1 + 4] = g[Y]; \ 187 dst_1[6 * 1 + 5] = b[Y]; 188 189 pu += 4 >> 1; \ 190 pv += 4 >> 1; \ 191 py_1 += 8 >> 1; \ 192 py_2 += 8 >> 1; \ 193 dst_1 += 24 >> 1; \ 194 dst_2 += 24 >> 1; \ 195 } \ 196 if (c->dstW & (4 >> ss)) \ 197 { \ 198 int av_unused Y, U, V; \ 199 200 U = pu[0]; \ 201 V = pv[0]; \ 202 r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \ 203 g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \ 204 b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM]; \ 205 206 Y = py_1[2 * 0]; \ 207 dst_1[6 * 0 + 0] = r[Y]; \ 208 dst_1[6 * 0 + 1] = g[Y]; \ 209 dst_1[6 * 0 + 2] = b[Y]; \ 210 Y = py_1[2 * 0 + 1]; \ 211 dst_1[6 * 0 + 3] = r[Y]; \ 212 dst_1[6 * 0 + 4] = g[Y]; \ 213 dst_1[6 * 0 + 5] = b[Y]; 214 215 Y = py_2[2 * 0]; \ 216 dst_2[6 * 0 + 0] = r[Y]; \ 217 dst_2[6 * 0 + 1] = g[Y]; \ 218 dst_2[6 * 0 + 2] = b[Y]; \ 219 Y = py_2[2 * 0 + 1]; \ 220 dst_2[6 * 0 + 3] = r[Y]; \ 221 dst_2[6 * 0 + 4] = g[Y]; \ 222 dst_2[6 * 0 + 5] = b[Y]; 223 } \ 224 } \ 225 return srcSliceH; \ 226 }
好记性不如烂笔头
