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| 1 : | edgomez | 851 | /****************************************************************************** |
| 2 : | * * | ||
| 3 : | * This file is part of XviD, a free MPEG-4 video encoder/decoder * | ||
| 4 : | * * | ||
| 5 : | * XviD is an implementation of a part of one or more MPEG-4 Video tools * | ||
| 6 : | * as specified in ISO/IEC 14496-2 standard. Those intending to use this * | ||
| 7 : | * software module in hardware or software products are advised that its * | ||
| 8 : | * use may infringe existing patents or copyrights, and any such use * | ||
| 9 : | * would be at such party's own risk. The original developer of this * | ||
| 10 : | * software module and his/her company, and subsequent editors and their * | ||
| 11 : | * companies, will have no liability for use of this software or * | ||
| 12 : | * modifications or derivatives thereof. * | ||
| 13 : | * * | ||
| 14 : | * XviD is free software; you can redistribute it and/or modify it * | ||
| 15 : | * under the terms of the GNU General Public License as published by * | ||
| 16 : | * the Free Software Foundation; either version 2 of the License, or * | ||
| 17 : | * (at your option) any later version. * | ||
| 18 : | * * | ||
| 19 : | * XviD is distributed in the hope that it will be useful, but * | ||
| 20 : | * WITHOUT ANY WARRANTY; without even the implied warranty of * | ||
| 21 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | ||
| 22 : | * GNU General Public License for more details. * | ||
| 23 : | * * | ||
| 24 : | * You should have received a copy of the GNU General Public License * | ||
| 25 : | * along with this program; if not, write to the Free Software * | ||
| 26 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * | ||
| 27 : | * * | ||
| 28 : | ******************************************************************************/ | ||
| 29 : | Isibaar | 3 | |
| 30 : | edgomez | 851 | /****************************************************************************** |
| 31 : | * * | ||
| 32 : | * mbtransquant.c * | ||
| 33 : | * * | ||
| 34 : | * Copyright (C) 2001 - Peter Ross <pross@cs.rmit.edu.au> * | ||
| 35 : | * Copyright (C) 2001 - Michael Militzer <isibaar@xvid.org> * | ||
| 36 : | * * | ||
| 37 : | * For more information visit the XviD homepage: http://www.xvid.org * | ||
| 38 : | * * | ||
| 39 : | ******************************************************************************/ | ||
| 40 : | |||
| 41 : | /****************************************************************************** | ||
| 42 : | * * | ||
| 43 : | * Revision history: * | ||
| 44 : | * * | ||
| 45 : | * 29.03.2002 interlacing speedup - used transfer strides instead of * | ||
| 46 : | * manual field-to-frame conversion * | ||
| 47 : | * 26.03.2002 interlacing support - moved transfers outside loops * | ||
| 48 : | * 22.12.2001 get_dc_scaler() moved to common.h * | ||
| 49 : | * 19.11.2001 introduced coefficient thresholding (Isibaar) * | ||
| 50 : | * 17.11.2001 initial version * | ||
| 51 : | * * | ||
| 52 : | ******************************************************************************/ | ||
| 53 : | |||
| 54 : | edgomez | 78 | #include <string.h> |
| 55 : | |||
| 56 : | Isibaar | 3 | #include "../portab.h" |
| 57 : | #include "mbfunctions.h" | ||
| 58 : | |||
| 59 : | #include "../global.h" | ||
| 60 : | #include "mem_transfer.h" | ||
| 61 : | #include "timer.h" | ||
| 62 : | #include "../dct/fdct.h" | ||
| 63 : | #include "../dct/idct.h" | ||
| 64 : | #include "../quant/quant_mpeg4.h" | ||
| 65 : | #include "../quant/quant_h263.h" | ||
| 66 : | #include "../encoder.h" | ||
| 67 : | |||
| 68 : | edgomez | 851 | #include "../image/reduced.h" |
| 69 : | Isibaar | 3 | |
| 70 : | edgomez | 851 | MBFIELDTEST_PTR MBFieldTest; |
| 71 : | Isibaar | 3 | |
| 72 : | edgomez | 851 | #define TOOSMALL_LIMIT 1 /* skip blocks having a coefficient sum below this value */ |
| 73 : | Isibaar | 3 | |
| 74 : | syskin | 937 | static __inline void |
| 75 : | MBfDCT(int16_t data[6 * 64]) | ||
| 76 : | { | ||
| 77 : | start_timer(); | ||
| 78 : | fdct(&data[0 * 64]); | ||
| 79 : | fdct(&data[1 * 64]); | ||
| 80 : | fdct(&data[2 * 64]); | ||
| 81 : | fdct(&data[3 * 64]); | ||
| 82 : | fdct(&data[4 * 64]); | ||
| 83 : | fdct(&data[5 * 64]); | ||
| 84 : | stop_dct_timer(); | ||
| 85 : | } | ||
| 86 : | |||
| 87 : | |||
| 88 : | static __inline uint32_t | ||
| 89 : | QuantizeInterBlock( int16_t qcoeff[64], | ||
| 90 : | const int16_t data[64], | ||
| 91 : | const uint32_t iQuant, | ||
| 92 : | const uint32_t quant_type) | ||
| 93 : | { | ||
| 94 : | uint32_t sum; | ||
| 95 : | |||
| 96 : | start_timer(); | ||
| 97 : | if (quant_type == H263_QUANT) | ||
| 98 : | sum = quant_inter(qcoeff, data, iQuant); | ||
| 99 : | else | ||
| 100 : | sum = quant4_inter(qcoeff, data, iQuant); | ||
| 101 : | |||
| 102 : | stop_quant_timer(); | ||
| 103 : | return sum; | ||
| 104 : | } | ||
| 105 : | |||
| 106 : | edgomez | 195 | void |
| 107 : | syskin | 937 | MBTransQuantIntra(const MBParam * const pParam, |
| 108 : | FRAMEINFO * const frame, | ||
| 109 : | MACROBLOCK * const pMB, | ||
| 110 : | const uint32_t x_pos, | ||
| 111 : | const uint32_t y_pos, | ||
| 112 : | int16_t data[6 * 64], | ||
| 113 : | int16_t qcoeff[6 * 64]) | ||
| 114 : | Isibaar | 3 | { |
| 115 : | edgomez | 78 | |
| 116 : | h | 82 | uint32_t stride = pParam->edged_width; |
| 117 : | syskin | 937 | const uint32_t stride2 = stride / 2; |
| 118 : | edgomez | 851 | uint32_t next_block = stride * ((frame->global_flags & XVID_REDUCED)?16:8); |
| 119 : | syskin | 937 | int i; |
| 120 : | const uint32_t iQuant = pMB->quant; | ||
| 121 : | Isibaar | 3 | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
| 122 : | syskin | 937 | const IMAGE * const pCurrent = &frame->image; |
| 123 : | Isibaar | 3 | |
| 124 : | edgomez | 851 | start_timer(); |
| 125 : | if ((frame->global_flags & XVID_REDUCED)) | ||
| 126 : | { | ||
| 127 : | pY_Cur = pCurrent->y + (y_pos << 5) * stride + (x_pos << 5); | ||
| 128 : | pU_Cur = pCurrent->u + (y_pos << 4) * stride2 + (x_pos << 4); | ||
| 129 : | pV_Cur = pCurrent->v + (y_pos << 4) * stride2 + (x_pos << 4); | ||
| 130 : | h | 69 | |
| 131 : | edgomez | 851 | filter_18x18_to_8x8(&data[0 * 64], pY_Cur, stride); |
| 132 : | filter_18x18_to_8x8(&data[1 * 64], pY_Cur + 16, stride); | ||
| 133 : | filter_18x18_to_8x8(&data[2 * 64], pY_Cur + next_block, stride); | ||
| 134 : | filter_18x18_to_8x8(&data[3 * 64], pY_Cur + next_block + 16, stride); | ||
| 135 : | filter_18x18_to_8x8(&data[4 * 64], pU_Cur, stride2); | ||
| 136 : | filter_18x18_to_8x8(&data[5 * 64], pV_Cur, stride2); | ||
| 137 : | syskin | 937 | } else { |
| 138 : | edgomez | 851 | pY_Cur = pCurrent->y + (y_pos << 4) * stride + (x_pos << 4); |
| 139 : | pU_Cur = pCurrent->u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
| 140 : | pV_Cur = pCurrent->v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
| 141 : | |||
| 142 : | transfer_8to16copy(&data[0 * 64], pY_Cur, stride); | ||
| 143 : | transfer_8to16copy(&data[1 * 64], pY_Cur + 8, stride); | ||
| 144 : | transfer_8to16copy(&data[2 * 64], pY_Cur + next_block, stride); | ||
| 145 : | transfer_8to16copy(&data[3 * 64], pY_Cur + next_block + 8, stride); | ||
| 146 : | transfer_8to16copy(&data[4 * 64], pU_Cur, stride2); | ||
| 147 : | transfer_8to16copy(&data[5 * 64], pV_Cur, stride2); | ||
| 148 : | } | ||
| 149 : | h | 69 | stop_transfer_timer(); |
| 150 : | |||
| 151 : | edgomez | 851 | /* XXX: rrv+interlacing is buggy */ |
| 152 : | h | 69 | start_timer(); |
| 153 : | pMB->field_dct = 0; | ||
| 154 : | h | 390 | if ((frame->global_flags & XVID_INTERLACING) && |
| 155 : | (x_pos>0) && (x_pos<pParam->mb_width-1) && | ||
| 156 : | (y_pos>0) && (y_pos<pParam->mb_height-1)) { | ||
| 157 : | h | 69 | pMB->field_dct = MBDecideFieldDCT(data); |
| 158 : | } | ||
| 159 : | stop_interlacing_timer(); | ||
| 160 : | |||
| 161 : | syskin | 937 | MBfDCT(data); |
| 162 : | |||
| 163 : | edgomez | 195 | for (i = 0; i < 6; i++) { |
| 164 : | syskin | 937 | const uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
| 165 : | Isibaar | 3 | |
| 166 : | start_timer(); | ||
| 167 : | syskin | 937 | if (pParam->m_quant_type == H263_QUANT) |
| 168 : | edgomez | 195 | quant_intra(&qcoeff[i * 64], &data[i * 64], iQuant, iDcScaler); |
| 169 : | syskin | 937 | else |
| 170 : | edgomez | 195 | quant4_intra(&qcoeff[i * 64], &data[i * 64], iQuant, iDcScaler); |
| 171 : | syskin | 937 | stop_quant_timer(); |
| 172 : | Isibaar | 3 | |
| 173 : | edgomez | 851 | /* speedup: dont decode when encoding only ivops */ |
| 174 : | if (pParam->iMaxKeyInterval != 1 || pParam->max_bframes > 0) | ||
| 175 : | { | ||
| 176 : | syskin | 937 | start_timer(); |
| 177 : | if (pParam->m_quant_type == H263_QUANT) | ||
| 178 : | edgomez | 851 | dequant_intra(&data[i * 64], &qcoeff[i * 64], iQuant, iDcScaler); |
| 179 : | syskin | 937 | else |
| 180 : | edgomez | 851 | dequant4_intra(&data[i * 64], &qcoeff[i * 64], iQuant, iDcScaler); |
| 181 : | syskin | 937 | stop_iquant_timer(); |
| 182 : | edgomez | 851 | |
| 183 : | Isibaar | 3 | start_timer(); |
| 184 : | edgomez | 851 | idct(&data[i * 64]); |
| 185 : | stop_idct_timer(); | ||
| 186 : | Isibaar | 3 | } |
| 187 : | edgomez | 851 | } |
| 188 : | Isibaar | 3 | |
| 189 : | edgomez | 851 | /* speedup: dont decode when encoding only ivops */ |
| 190 : | if (pParam->iMaxKeyInterval != 1 || pParam->max_bframes > 0) | ||
| 191 : | { | ||
| 192 : | |||
| 193 : | if (pMB->field_dct) { | ||
| 194 : | next_block = stride; | ||
| 195 : | stride *= 2; | ||
| 196 : | } | ||
| 197 : | |||
| 198 : | Isibaar | 3 | start_timer(); |
| 199 : | syskin | 937 | if ((frame->global_flags & XVID_REDUCED)) { |
| 200 : | edgomez | 851 | copy_upsampled_8x8_16to8(pY_Cur, &data[0 * 64], stride); |
| 201 : | copy_upsampled_8x8_16to8(pY_Cur + 16, &data[1 * 64], stride); | ||
| 202 : | copy_upsampled_8x8_16to8(pY_Cur + next_block, &data[2 * 64], stride); | ||
| 203 : | copy_upsampled_8x8_16to8(pY_Cur + next_block + 16, &data[3 * 64], stride); | ||
| 204 : | copy_upsampled_8x8_16to8(pU_Cur, &data[4 * 64], stride2); | ||
| 205 : | copy_upsampled_8x8_16to8(pV_Cur, &data[5 * 64], stride2); | ||
| 206 : | syskin | 937 | } else { |
| 207 : | edgomez | 851 | transfer_16to8copy(pY_Cur, &data[0 * 64], stride); |
| 208 : | transfer_16to8copy(pY_Cur + 8, &data[1 * 64], stride); | ||
| 209 : | transfer_16to8copy(pY_Cur + next_block, &data[2 * 64], stride); | ||
| 210 : | transfer_16to8copy(pY_Cur + next_block + 8, &data[3 * 64], stride); | ||
| 211 : | transfer_16to8copy(pU_Cur, &data[4 * 64], stride2); | ||
| 212 : | transfer_16to8copy(pV_Cur, &data[5 * 64], stride2); | ||
| 213 : | } | ||
| 214 : | stop_transfer_timer(); | ||
| 215 : | h | 69 | } |
| 216 : | |||
| 217 : | Isibaar | 3 | } |
| 218 : | |||
| 219 : | edgomez | 195 | uint8_t |
| 220 : | syskin | 937 | MBTransQuantInter(const MBParam * const pParam, |
| 221 : | FRAMEINFO * const frame, | ||
| 222 : | MACROBLOCK * const pMB, | ||
| 223 : | const uint32_t x_pos, | ||
| 224 : | const uint32_t y_pos, | ||
| 225 : | int16_t data[6 * 64], | ||
| 226 : | int16_t qcoeff[6 * 64]) | ||
| 227 : | Isibaar | 3 | { |
| 228 : | h | 82 | uint32_t stride = pParam->edged_width; |
| 229 : | syskin | 937 | const uint32_t stride2 = stride / 2; |
| 230 : | edgomez | 851 | uint32_t next_block = stride * ((frame->global_flags & XVID_REDUCED)?16:8); |
| 231 : | syskin | 937 | int i; |
| 232 : | const uint32_t iQuant = pMB->quant; | ||
| 233 : | Isibaar | 3 | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
| 234 : | syskin | 937 | int cbp = 0; |
| 235 : | Isibaar | 3 | uint32_t sum; |
| 236 : | syskin | 937 | const IMAGE * const pCurrent = &frame->image; |
| 237 : | edgomez | 195 | |
| 238 : | syskin | 937 | if ((frame->global_flags & XVID_REDUCED)) { |
| 239 : | edgomez | 851 | pY_Cur = pCurrent->y + (y_pos << 5) * stride + (x_pos << 5); |
| 240 : | pU_Cur = pCurrent->u + (y_pos << 4) * stride2 + (x_pos << 4); | ||
| 241 : | pV_Cur = pCurrent->v + (y_pos << 4) * stride2 + (x_pos << 4); | ||
| 242 : | syskin | 937 | } else { |
| 243 : | edgomez | 851 | pY_Cur = pCurrent->y + (y_pos << 4) * stride + (x_pos << 4); |
| 244 : | pU_Cur = pCurrent->u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
| 245 : | pV_Cur = pCurrent->v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
| 246 : | } | ||
| 247 : | Isibaar | 3 | |
| 248 : | h | 69 | start_timer(); |
| 249 : | pMB->field_dct = 0; | ||
| 250 : | h | 390 | if ((frame->global_flags & XVID_INTERLACING) && |
| 251 : | (x_pos>0) && (x_pos<pParam->mb_width-1) && | ||
| 252 : | (y_pos>0) && (y_pos<pParam->mb_height-1)) { | ||
| 253 : | h | 69 | pMB->field_dct = MBDecideFieldDCT(data); |
| 254 : | } | ||
| 255 : | stop_interlacing_timer(); | ||
| 256 : | |||
| 257 : | syskin | 937 | MBfDCT(data); |
| 258 : | edgomez | 851 | |
| 259 : | syskin | 937 | for (i = 0; i < 6; i++) { |
| 260 : | const uint32_t limit = TOOSMALL_LIMIT + ((iQuant == 1) ? 1 : 0); | ||
| 261 : | /* | ||
| 262 : | edgomez | 78 | * no need to transfer 8->16-bit |
| 263 : | syskin | 937 | * (this is performed already in motion compensation) |
| 264 : | edgomez | 78 | */ |
| 265 : | Isibaar | 3 | |
| 266 : | syskin | 937 | sum = QuantizeInterBlock(&qcoeff[i * 64], &data[i * 64], iQuant, pParam->m_quant_type); |
| 267 : | Isibaar | 3 | |
| 268 : | syskin | 937 | if (sum >= limit) { |
| 269 : | Isibaar | 3 | |
| 270 : | syskin | 937 | start_timer(); |
| 271 : | if (pParam->m_quant_type == H263_QUANT) | ||
| 272 : | edgomez | 195 | dequant_inter(&data[i * 64], &qcoeff[i * 64], iQuant); |
| 273 : | syskin | 937 | else |
| 274 : | edgomez | 195 | dequant4_inter(&data[i * 64], &qcoeff[i * 64], iQuant); |
| 275 : | syskin | 937 | stop_iquant_timer(); |
| 276 : | Isibaar | 3 | |
| 277 : | cbp |= 1 << (5 - i); | ||
| 278 : | |||
| 279 : | start_timer(); | ||
| 280 : | edgomez | 195 | idct(&data[i * 64]); |
| 281 : | Isibaar | 3 | stop_idct_timer(); |
| 282 : | } | ||
| 283 : | } | ||
| 284 : | h | 69 | |
| 285 : | edgomez | 195 | if (pMB->field_dct) { |
| 286 : | h | 82 | next_block = stride; |
| 287 : | stride *= 2; | ||
| 288 : | h | 69 | } |
| 289 : | |||
| 290 : | start_timer(); | ||
| 291 : | syskin | 937 | if ((frame->global_flags & XVID_REDUCED)) { |
| 292 : | edgomez | 851 | if (cbp & 32) |
| 293 : | add_upsampled_8x8_16to8(pY_Cur, &data[0 * 64], stride); | ||
| 294 : | if (cbp & 16) | ||
| 295 : | add_upsampled_8x8_16to8(pY_Cur + 16, &data[1 * 64], stride); | ||
| 296 : | if (cbp & 8) | ||
| 297 : | add_upsampled_8x8_16to8(pY_Cur + next_block, &data[2 * 64], stride); | ||
| 298 : | if (cbp & 4) | ||
| 299 : | add_upsampled_8x8_16to8(pY_Cur + 16 + next_block, &data[3 * 64], stride); | ||
| 300 : | if (cbp & 2) | ||
| 301 : | add_upsampled_8x8_16to8(pU_Cur, &data[4 * 64], stride2); | ||
| 302 : | if (cbp & 1) | ||
| 303 : | add_upsampled_8x8_16to8(pV_Cur, &data[5 * 64], stride2); | ||
| 304 : | syskin | 937 | } else { |
| 305 : | edgomez | 851 | if (cbp & 32) |
| 306 : | transfer_16to8add(pY_Cur, &data[0 * 64], stride); | ||
| 307 : | if (cbp & 16) | ||
| 308 : | transfer_16to8add(pY_Cur + 8, &data[1 * 64], stride); | ||
| 309 : | if (cbp & 8) | ||
| 310 : | transfer_16to8add(pY_Cur + next_block, &data[2 * 64], stride); | ||
| 311 : | if (cbp & 4) | ||
| 312 : | transfer_16to8add(pY_Cur + next_block + 8, &data[3 * 64], stride); | ||
| 313 : | if (cbp & 2) | ||
| 314 : | transfer_16to8add(pU_Cur, &data[4 * 64], stride2); | ||
| 315 : | if (cbp & 1) | ||
| 316 : | transfer_16to8add(pV_Cur, &data[5 * 64], stride2); | ||
| 317 : | } | ||
| 318 : | h | 69 | stop_transfer_timer(); |
| 319 : | |||
| 320 : | syskin | 937 | return (uint8_t) cbp; |
| 321 : | Isibaar | 3 | } |
| 322 : | h | 69 | |
| 323 : | chl | 368 | uint8_t |
| 324 : | MBTransQuantInterBVOP(const MBParam * pParam, | ||
| 325 : | FRAMEINFO * frame, | ||
| 326 : | MACROBLOCK * pMB, | ||
| 327 : | int16_t data[6 * 64], | ||
| 328 : | int16_t qcoeff[6 * 64]) | ||
| 329 : | { | ||
| 330 : | syskin | 937 | int cbp = 0; |
| 331 : | chl | 368 | int i; |
| 332 : | |||
| 333 : | syskin | 937 | /* there is no MBTrans for Inter block, that's done in motion compensation already */ |
| 334 : | chl | 368 | |
| 335 : | start_timer(); | ||
| 336 : | pMB->field_dct = 0; | ||
| 337 : | if ((frame->global_flags & XVID_INTERLACING)) { | ||
| 338 : | pMB->field_dct = MBDecideFieldDCT(data); | ||
| 339 : | } | ||
| 340 : | stop_interlacing_timer(); | ||
| 341 : | |||
| 342 : | syskin | 937 | MBfDCT(data); |
| 343 : | chl | 368 | |
| 344 : | for (i = 0; i < 6; i++) { | ||
| 345 : | syskin | 937 | int codedecision = 0; |
| 346 : | chl | 368 | |
| 347 : | syskin | 937 | int sum = QuantizeInterBlock(&qcoeff[i * 64], &data[i * 64], pMB->quant, pParam->m_quant_type); |
| 348 : | |||
| 349 : | if ((sum > 2) || (qcoeff[i*64+1] != 0) || (qcoeff[i*64+8] != 0) ) codedecision = 1; | ||
| 350 : | else { | ||
| 351 : | if (pMB->mode == MODE_DIRECT || pMB->mode == MODE_DIRECT_NO4V) { | ||
| 352 : | // dark blocks prevention for direct mode | ||
| 353 : | if ( (qcoeff[i*64] < -1) || (qcoeff[i*64] > 0) ) codedecision = 1; | ||
| 354 : | } else | ||
| 355 : | if (qcoeff[i*64] != 0) codedecision = 1; // not direct mode | ||
| 356 : | chl | 368 | } |
| 357 : | |||
| 358 : | syskin | 937 | if (codedecision) cbp |= 1 << (5 - i); |
| 359 : | chl | 368 | } |
| 360 : | |||
| 361 : | syskin | 937 | /* we don't have to DeQuant, iDCT and Transfer back data for B-frames if we don't reconstruct this frame */ |
| 362 : | /* warning: reconstruction not supported yet */ | ||
| 363 : | return (uint8_t) cbp; | ||
| 364 : | chl | 368 | } |
| 365 : | |||
| 366 : | edgomez | 851 | /* permute block and return field dct choice */ |
| 367 : | h | 69 | |
| 368 : | syskin | 937 | static uint32_t |
| 369 : | edgomez | 195 | MBDecideFieldDCT(int16_t data[6 * 64]) |
| 370 : | h | 69 | { |
| 371 : | syskin | 937 | const uint32_t field = MBFieldTest(data); |
| 372 : | if (field) MBFrameToField(data); | ||
| 373 : | h | 69 | |
| 374 : | edgomez | 851 | return field; |
| 375 : | } | ||
| 376 : | |||
| 377 : | /* if sum(diff between field lines) < sum(diff between frame lines), use field dct */ | ||
| 378 : | |||
| 379 : | uint32_t | ||
| 380 : | MBFieldTest_c(int16_t data[6 * 64]) | ||
| 381 : | { | ||
| 382 : | edgomez | 195 | const uint8_t blocks[] = |
| 383 : | { 0 * 64, 0 * 64, 0 * 64, 0 * 64, 2 * 64, 2 * 64, 2 * 64, 2 * 64 }; | ||
| 384 : | const uint8_t lines[] = { 0, 16, 32, 48, 0, 16, 32, 48 }; | ||
| 385 : | edgomez | 78 | |
| 386 : | h | 69 | int frame = 0, field = 0; |
| 387 : | int i, j; | ||
| 388 : | |||
| 389 : | edgomez | 195 | for (i = 0; i < 7; ++i) { |
| 390 : | for (j = 0; j < 8; ++j) { | ||
| 391 : | frame += | ||
| 392 : | ABS(data[0 * 64 + (i + 1) * 8 + j] - data[0 * 64 + i * 8 + j]); | ||
| 393 : | frame += | ||
| 394 : | ABS(data[1 * 64 + (i + 1) * 8 + j] - data[1 * 64 + i * 8 + j]); | ||
| 395 : | frame += | ||
| 396 : | ABS(data[2 * 64 + (i + 1) * 8 + j] - data[2 * 64 + i * 8 + j]); | ||
| 397 : | frame += | ||
| 398 : | ABS(data[3 * 64 + (i + 1) * 8 + j] - data[3 * 64 + i * 8 + j]); | ||
| 399 : | h | 69 | |
| 400 : | edgomez | 195 | field += |
| 401 : | ABS(data[blocks[i + 1] + lines[i + 1] + j] - | ||
| 402 : | data[blocks[i] + lines[i] + j]); | ||
| 403 : | field += | ||
| 404 : | ABS(data[blocks[i + 1] + lines[i + 1] + 8 + j] - | ||
| 405 : | data[blocks[i] + lines[i] + 8 + j]); | ||
| 406 : | field += | ||
| 407 : | ABS(data[blocks[i + 1] + 64 + lines[i + 1] + j] - | ||
| 408 : | data[blocks[i] + 64 + lines[i] + j]); | ||
| 409 : | field += | ||
| 410 : | ABS(data[blocks[i + 1] + 64 + lines[i + 1] + 8 + j] - | ||
| 411 : | data[blocks[i] + 64 + lines[i] + 8 + j]); | ||
| 412 : | h | 69 | } |
| 413 : | } | ||
| 414 : | |||
| 415 : | edgomez | 851 | return (frame >= (field + 350)); |
| 416 : | h | 69 | } |
| 417 : | |||
| 418 : | |||
| 419 : | /* deinterlace Y blocks vertically */ | ||
| 420 : | |||
| 421 : | #define MOVLINE(X,Y) memcpy(X, Y, sizeof(tmp)) | ||
| 422 : | edgomez | 78 | #define LINE(X,Y) &data[X*64 + Y*8] |
| 423 : | h | 69 | |
| 424 : | edgomez | 195 | void |
| 425 : | MBFrameToField(int16_t data[6 * 64]) | ||
| 426 : | h | 69 | { |
| 427 : | int16_t tmp[8]; | ||
| 428 : | |||
| 429 : | /* left blocks */ | ||
| 430 : | |||
| 431 : | edgomez | 851 | // 1=2, 2=4, 4=8, 8=1 |
| 432 : | edgomez | 195 | MOVLINE(tmp, LINE(0, 1)); |
| 433 : | MOVLINE(LINE(0, 1), LINE(0, 2)); | ||
| 434 : | MOVLINE(LINE(0, 2), LINE(0, 4)); | ||
| 435 : | MOVLINE(LINE(0, 4), LINE(2, 0)); | ||
| 436 : | MOVLINE(LINE(2, 0), tmp); | ||
| 437 : | h | 69 | |
| 438 : | edgomez | 851 | // 3=6, 6=12, 12=9, 9=3 |
| 439 : | edgomez | 195 | MOVLINE(tmp, LINE(0, 3)); |
| 440 : | MOVLINE(LINE(0, 3), LINE(0, 6)); | ||
| 441 : | MOVLINE(LINE(0, 6), LINE(2, 4)); | ||
| 442 : | MOVLINE(LINE(2, 4), LINE(2, 1)); | ||
| 443 : | MOVLINE(LINE(2, 1), tmp); | ||
| 444 : | h | 69 | |
| 445 : | edgomez | 851 | // 5=10, 10=5 |
| 446 : | edgomez | 195 | MOVLINE(tmp, LINE(0, 5)); |
| 447 : | MOVLINE(LINE(0, 5), LINE(2, 2)); | ||
| 448 : | MOVLINE(LINE(2, 2), tmp); | ||
| 449 : | h | 69 | |
| 450 : | edgomez | 851 | // 7=14, 14=13, 13=11, 11=7 |
| 451 : | edgomez | 195 | MOVLINE(tmp, LINE(0, 7)); |
| 452 : | MOVLINE(LINE(0, 7), LINE(2, 6)); | ||
| 453 : | MOVLINE(LINE(2, 6), LINE(2, 5)); | ||
| 454 : | MOVLINE(LINE(2, 5), LINE(2, 3)); | ||
| 455 : | MOVLINE(LINE(2, 3), tmp); | ||
| 456 : | h | 69 | |
| 457 : | /* right blocks */ | ||
| 458 : | |||
| 459 : | edgomez | 851 | // 1=2, 2=4, 4=8, 8=1 |
| 460 : | edgomez | 195 | MOVLINE(tmp, LINE(1, 1)); |
| 461 : | MOVLINE(LINE(1, 1), LINE(1, 2)); | ||
| 462 : | MOVLINE(LINE(1, 2), LINE(1, 4)); | ||
| 463 : | MOVLINE(LINE(1, 4), LINE(3, 0)); | ||
| 464 : | MOVLINE(LINE(3, 0), tmp); | ||
| 465 : | h | 69 | |
| 466 : | edgomez | 851 | // 3=6, 6=12, 12=9, 9=3 |
| 467 : | edgomez | 195 | MOVLINE(tmp, LINE(1, 3)); |
| 468 : | MOVLINE(LINE(1, 3), LINE(1, 6)); | ||
| 469 : | MOVLINE(LINE(1, 6), LINE(3, 4)); | ||
| 470 : | MOVLINE(LINE(3, 4), LINE(3, 1)); | ||
| 471 : | MOVLINE(LINE(3, 1), tmp); | ||
| 472 : | h | 69 | |
| 473 : | edgomez | 851 | // 5=10, 10=5 |
| 474 : | edgomez | 195 | MOVLINE(tmp, LINE(1, 5)); |
| 475 : | MOVLINE(LINE(1, 5), LINE(3, 2)); | ||
| 476 : | MOVLINE(LINE(3, 2), tmp); | ||
| 477 : | h | 69 | |
| 478 : | edgomez | 851 | // 7=14, 14=13, 13=11, 11=7 |
| 479 : | edgomez | 195 | MOVLINE(tmp, LINE(1, 7)); |
| 480 : | MOVLINE(LINE(1, 7), LINE(3, 6)); | ||
| 481 : | MOVLINE(LINE(3, 6), LINE(3, 5)); | ||
| 482 : | MOVLINE(LINE(3, 5), LINE(3, 3)); | ||
| 483 : | MOVLINE(LINE(3, 3), tmp); | ||
| 484 : | h | 69 | } |
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