1 /****************************************************************************** 2 * 3 * Copyright (C) 2015 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ***************************************************************************** 18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 */ 20 #include <stdio.h> 21 #include "iv_datatypedef.h" 22 #include "iv.h" 23 #include "impeg2_buf_mgr.h" 24 #include "impeg2_disp_mgr.h" 25 #include "impeg2_defs.h" 26 #include "impeg2_platform_macros.h" 27 #include "impeg2_globals.h" 28 29 /* Table for converting the quantizer_scale_code to quantizer_scale */ 30 const UWORD8 gau1_impeg2_non_linear_quant_scale[] = 31 { 32 0, 1, 2, 3, 4, 5, 6, 7, 33 8,10,12,14,16,18,20,22, 34 24,28,32,36,40,44,48,52, 35 56,64,72,80,88,96,104,112 36 }; 37 38 39 /* Default quantizer matrix to be used for intra blocks */ 40 const UWORD8 gau1_impeg2_intra_quant_matrix_default[] = 41 { 42 8, 16, 19, 22, 26, 27, 29, 34, 43 16, 16, 22, 24, 27, 29, 34, 37, 44 19, 22, 26, 27, 29, 34, 34, 38, 45 22, 22, 26, 27, 29, 34, 37, 40, 46 22, 26, 27, 29, 32, 35, 40, 48, 47 26, 27, 29, 32, 35, 40, 48, 58, 48 26, 27, 29, 34, 38, 46, 56, 69, 49 27, 29, 35, 38, 46, 56, 69, 83 50 }; 51 52 /* Default quantizer matrix to be used for inter blocks */ 53 const UWORD8 gau1_impeg2_inter_quant_matrix_default[] = 54 { 55 16,16,16,16,16,16,16,16, 56 16,16,16,16,16,16,16,16, 57 16,16,16,16,16,16,16,16, 58 16,16,16,16,16,16,16,16, 59 16,16,16,16,16,16,16,16, 60 16,16,16,16,16,16,16,16, 61 16,16,16,16,16,16,16,16, 62 16,16,16,16,16,16,16,16 63 }; 64 65 /* Table to perform inverse scan when the scan direction is zigzag */ 66 const UWORD8 gau1_impeg2_inv_scan_zig_zag[] = 67 { 68 0, 1, 8, 16, 9, 2, 3, 10, 69 17, 24, 32, 25, 18, 11, 4, 5, 70 12, 19, 26, 33, 40, 48, 41, 34, 71 27, 20, 13, 6, 7, 14, 21, 28, 72 35, 42, 49, 56, 57, 50, 43, 36, 73 29, 22, 15, 23, 30, 37, 44, 51, 74 58, 59, 52, 45, 38, 31, 39, 46, 75 53, 60, 61, 54, 47, 55, 62, 63 76 }; 77 78 /* Table to perform inverse scan when the direction of scanning is vertical */ 79 const UWORD8 gau1_impeg2_inv_scan_vertical[] = 80 { 81 0, 8, 16, 24, 1, 9, 2, 10, 82 17, 25, 32, 40, 48, 56, 57, 49, 83 41, 33, 26, 18, 3, 11, 4, 12, 84 19, 27, 34, 42, 50, 58, 35, 43, 85 51, 59, 20, 28, 5, 13, 6, 14, 86 21, 29, 36, 44, 52, 60, 37, 45, 87 53, 61, 22, 30, 7, 15, 23, 31, 88 38, 46, 54, 62, 39, 47, 55, 63 89 }; 90 91 /*****************************************************************************/ 92 /* Table that indicate which interpolation type is to used */ 93 /*****************************************************************************/ 94 /* Chroma when motion vector is positive */ 95 const UWORD16 gau2_impeg2_chroma_interp_mv[][16] = 96 { 97 /* Pos X Pos Y */ 98 { 99 0, 0, 1, 1, 100 0, 0, 1, 1, 101 2, 2, 3, 3, 102 2, 2, 3, 3 103 }, 104 /* Neg X Pos Y */ 105 { 106 0, 1, 1, 0, 107 0, 1, 1, 0, 108 2, 3, 3, 2, 109 2, 3, 3, 2 110 }, 111 /* Pos X Neg Y */ 112 { 113 0, 0, 1, 1, 114 2, 2, 3, 3, 115 2, 2, 3, 3, 116 0, 0, 1, 1 117 }, 118 /* Neg X Neg Y */ 119 { 120 0, 1, 1, 0, 121 2, 3, 3, 2, 122 2, 3, 3, 2, 123 0, 1, 1, 0 124 } 125 }; 126 /*****************************************************************************/ 127 /* Input #1 Offset in bytes */ 128 /*****************************************************************************/ 129 /* Chroma */ 130 const UWORD16 gau2_impeg2_chroma_interp_inp1[][16] = 131 { 132 /* Pos X Pos Y */ 133 { 134 0, 0, 0, 0, 135 0, 0, 0, 0, 136 0, 0, 0, 0, 137 0, 0, 0, 0 138 }, 139 /* Neg X Pos Y */ 140 { 141 0, 0, 0, 4, 142 0, 0, 0, 4, 143 0, 0, 0, 4, 144 0, 0, 0, 4 145 }, 146 /* Pos X Neg Y */ 147 { 148 0, 0, 0, 0, 149 0, 0, 0, 0, 150 0, 0, 0, 0, 151 72, 72, 72, 72 152 }, 153 /* Neg X Neg Y */ 154 { 155 0, 0, 0, 4, 156 0, 0, 0, 4, 157 0, 0, 0, 4, 158 72, 72, 72, 76 159 } 160 }; 161 /* Luma */ 162 const UWORD16 gau2_impeg2_luma_interp_inp1[] = 163 { 164 1, 1, 3, 3, 165 1, 1, 3, 3, 166 37, 37, 39, 39, 167 37, 37, 39, 39 168 }; 169 /*****************************************************************************/ 170 /* Input #2 Offset from Input #1 in bytes */ 171 /*****************************************************************************/ 172 /* 173 FXFY 0, 174 HXFY 2, 175 FXHY 36, 176 HXHY 36 177 */ 178 const UWORD16 gau2_impeg2_luma_interp_inp2[] = 179 { 180 0, 2, 0, 2, 181 36, 36, 36, 36, 182 0, 2, 0, 2, 183 36, 36, 36, 36 184 }; 185 const UWORD16 gau2_impeg2_chroma_interp_inp2[] = 186 { 187 /* FXFY */ 188 0, 189 /* HXFY */ 190 4, 191 /* FXHY */ 192 72, 193 /* HXHY */ 194 72 195 }; 196 197 /*****************************************************************************/ 198 /* Corresponds to Table 6-4 frame_rate_value of the standard */ 199 /*****************************************************************************/ 200 /* 201 frame_rate_code frame_rate_value 202 203 0000 Forbidden 204 0001 24 000 � 1001 205 0010 24 206 0011 25 207 0100 30 000 � 1001 208 0101 30 209 0110 50 210 0111 60 000 � 1001 211 1000 60 212 1001 Reserved 213 .... 214 1111 Reserved 215 */ 216 const UWORD16 gau2_impeg2_frm_rate_code[][2] = 217 { 218 {1 , 1}, /* Forbidden */ 219 {24000, 1001}, 220 {24000, 1000}, 221 {25000, 1000}, 222 {30000, 1001}, 223 {30000, 1000}, 224 {50000, 1000}, 225 {60000, 1001}, 226 {60000, 1000} 227 /* Rest reserved */ 228 }; 229 230 const WORD16 gai2_impeg2_idct_q15[] = 231 { 232 23170, 23170, 23170, 23170, 23170, 23170, 23170, 23170, 233 32138, 27246, 18205, 6393, -6393, -18205, -27246, -32138, 234 30274, 12540, -12540, -30274, -30274, -12540, 12540, 30274, 235 27246, -6393, -32138, -18205, 18205, 32138, 6393, -27246, 236 23170, -23170, -23170, 23170, 23170, -23170, -23170, 23170, 237 18205, -32138, 6393, 27246, -27246, -6393, 32138, -18205, 238 12540, -30274, 30274, -12540, -12540, 30274, -30274, 12540, 239 6393, -18205, 27246, -32138, 32138, -27246, 18205, -6393, 240 }; 241 242 const WORD16 gai2_impeg2_idct_q11[] = 243 { 244 1448, 1448, 1448, 1448, 1448, 1448, 1448, 1448, 245 2009, 1703, 1138, 400, -400, -1138, -1703, -2009, 246 1892, 784, -784, -1892, -1892, -784, 784, 1892, 247 1703, -400, -2009, -1138, 1138, 2009, 400, -1703, 248 1448, -1448, -1448, 1448, 1448, -1448, -1448, 1448, 249 1138, -2009, 400, 1703, -1703, -400, 2009, -1138, 250 784, -1892, 1892, -784, -784, 1892, -1892, 784, 251 400, -1138, 1703, -2009, 2009, -1703, 1138, -400, 252 }; 253 254 const WORD16 gai2_impeg2_idct_even_8_q15[][8] = 255 { 256 { 23170, 23170, 23170, 23170, 23170, 23170, 23170, 23170 }, 257 { 12540, -30274, 12540, -30274, 12540, -30274, 12540, -30274 }, 258 { 30274, 12540, 30274, 12540, 30274, 12540, 30274, 12540 }, 259 { 23170, -23170, 23170, -23170, 23170, -23170, 23170, -23170 } 260 }; 261 const WORD16 gai2_impeg2_idct_odd_8_q15[][8] = 262 { 263 { 32138, 27246, 32138, 27246, 32138, 27246, 32138, 27246 }, 264 { 18205, 6393, 18205, 6393, 18205, 6393, 18205, 6393 }, 265 { 27246, -6393, 27246, -6393, 27246, -6393, 27246, -6393 }, 266 { 32138, 18205, 32138, 18205, 32138, 18205, 32138, 18205 }, 267 { 18205, -32138, 18205, -32138, 18205, -32138, 18205, -32138 }, 268 { 6393, 27246, 6393, 27246, 6393, 27246, 6393, 27246 }, 269 { 6393, -18205, 6393, -18205, 6393, -18205, 6393, -18205 }, 270 { 27246, -32138, 27246, -32138, 27246, -32138, 27246, -32138 }, 271 }; 272 273 const WORD16 gai2_impeg2_idct_even_8_q11[][8] = 274 { 275 { 1448, 1448, 1448, 1448, 1448, 1448, 1448, 1448 }, 276 { 784, -1892, 784, -1892, 784, -1892, 784, -1892 }, 277 { 1892, 784, 1892, 784, 1892, 784, 1892, 784 }, 278 { 1448, -1448, 1448, -1448, 1448, -1448, 1448, -1448 } 279 }; 280 const WORD16 gai2_impeg2_idct_odd_8_q11[][8] = 281 { 282 { 2009, 1703, 2009, 1703, 2009, 1703, 2009, 1703 }, 283 { 1138, 400, 1138, 400, 1138, 400, 1138, 400 }, 284 { 1703, -400, 1703, -400, 1703, -400, 1703, -400 }, 285 { 2009, 1138, 2009, 1138, 2009, 1138, 2009, 1138 }, 286 { 1138, -2009, 1138, -2009, 1138, -2009, 1138, -2009 }, 287 { 400, 1703, 400, 1703, 400, 1703, 400, 1703 }, 288 { 400, -1138, 400, -1138, 400, -1138, 400, -1138 }, 289 { 1703, -2009, 1703, -2009, 1703, -2009, 1703, -2009 }, 290 }; 291 292 293 294 /*****************************************************************************/ 295 /* Last row IDCT Coefficients in Q11 format */ 296 /*****************************************************************************/ 297 const WORD16 gai2_impeg2_idct_last_row_q11[] = 298 { 299 400, -1138, 1703, -2009, 2009, -1703, 1138, -400, 300 }; 301 302 const WORD16 gai2_impeg2_idct_first_col_q15[] = 303 { 304 23170, 32138, 30274, 27246, 23170, 18205, 12540, 6393, 305 }; 306 307 const WORD16 gai2_impeg2_idct_first_col_q11[] = 308 { 309 1448, 2009, 1892, 1703, 1448, 1138, 784, 400, 310 }; 311 312 /*****************************************************************************/ 313 /* Output of first stage dct (using gai2_impeg2_idct_q15 as coeffs) */ 314 /* for a 1D data (0, 0, 0, 0, 0, 0, 0, 1) */ 315 /*****************************************************************************/ 316 317 const WORD16 gai2_impeg2_mismatch_stg1_outp[] = 318 { 319 2, -4, 7, -8, 8, -7, 4, -2 320 }; 321 322 const WORD16 gai2_impeg2_mismatch_stg2_additive[] = 323 { 324 800, -2276, 3406, -4018, 4018, -3406, 2276, -800, 325 -1600, 4552, -6812, 8036, -8036, 6812, -4552, 1600, 326 2800, -7966, 11921, -14063, 14063, -11921, 7966, -2800, 327 -3200, 9104, -13624, 16072, -16072, 13624, -9104, 3200, 328 3200, -9104, 13624, -16072, 16072, -13624, 9104, -3200, 329 -2800, 7966, -11921, 14063, -14063, 11921, -7966, 2800, 330 1600, -4552, 6812, -8036, 8036, -6812, 4552, -1600, 331 -800, 2276, -3406, 4018, -4018, 3406, -2276, 800, 332 }; 333 334 335 const UWORD8 gau1_impeg2_zerobuf[] = 336 { 337 0, 0, 0, 0, 0, 0, 0, 0, 338 0, 0, 0, 0, 0, 0, 0, 0, 339 0, 0, 0, 0, 0, 0, 0, 0, 340 0, 0, 0, 0, 0, 0, 0, 0, 341 0, 0, 0, 0, 0, 0, 0, 0, 342 0, 0, 0, 0, 0, 0, 0, 0, 343 0, 0, 0, 0, 0, 0, 0, 0, 344 0, 0, 0, 0, 0, 0, 0, 0, 345 }; 346 /*****************************************************************************/ 347 /* Tables of offset needed to address block in an MB */ 348 /*****************************************************************************/ 349 const WORD16 gai2_impeg2_blk_y_off_fld[] = {0,0,1,1}; 350 const WORD16 gai2_impeg2_blk_y_off_frm[] = {0,0,8,8}; 351 const WORD16 gai2_impeg2_blk_x_off[] = {0,8,0,8}; 352