1/* 2 * Misc image conversion routines 3 * Copyright (c) 2001, 2002, 2003 Fabrice Bellard 4 * 5 * This file is part of FFmpeg. 6 * 7 * FFmpeg is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * FFmpeg is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with FFmpeg; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22/** 23 * @file 24 * misc image conversion routines 25 */ 26 27/* TODO: 28 * - write 'ffimg' program to test all the image related stuff 29 * - move all api to slice based system 30 * - integrate deinterlacing, postprocessing and scaling in the conversion process 31 */ 32 33#include "avcodec.h" 34#include "dsputil.h" 35#include "colorspace.h" 36#include "internal.h" 37#include "imgconvert.h" 38#include "libavutil/pixdesc.h" 39 40#if HAVE_MMX 41#include "x86/mmx.h" 42#include "x86/dsputil_mmx.h" 43#endif 44 45#define xglue(x, y) x ## y 46#define glue(x, y) xglue(x, y) 47 48#define FF_COLOR_RGB 0 /**< RGB color space */ 49#define FF_COLOR_GRAY 1 /**< gray color space */ 50#define FF_COLOR_YUV 2 /**< YUV color space. 16 <= Y <= 235, 16 <= U, V <= 240 */ 51#define FF_COLOR_YUV_JPEG 3 /**< YUV color space. 0 <= Y <= 255, 0 <= U, V <= 255 */ 52 53#define FF_PIXEL_PLANAR 0 /**< each channel has one component in AVPicture */ 54#define FF_PIXEL_PACKED 1 /**< only one components containing all the channels */ 55#define FF_PIXEL_PALETTE 2 /**< one components containing indexes for a palette */ 56 57typedef struct PixFmtInfo { 58 uint8_t nb_channels; /**< number of channels (including alpha) */ 59 uint8_t color_type; /**< color type (see FF_COLOR_xxx constants) */ 60 uint8_t pixel_type; /**< pixel storage type (see FF_PIXEL_xxx constants) */ 61 uint8_t is_alpha : 1; /**< true if alpha can be specified */ 62 uint8_t depth; /**< bit depth of the color components */ 63} PixFmtInfo; 64 65/* this table gives more information about formats */ 66static const PixFmtInfo pix_fmt_info[PIX_FMT_NB] = { 67 /* YUV formats */ 68 [PIX_FMT_YUV420P] = { 69 .nb_channels = 3, 70 .color_type = FF_COLOR_YUV, 71 .pixel_type = FF_PIXEL_PLANAR, 72 .depth = 8, 73 }, 74 [PIX_FMT_YUV422P] = { 75 .nb_channels = 3, 76 .color_type = FF_COLOR_YUV, 77 .pixel_type = FF_PIXEL_PLANAR, 78 .depth = 8, 79 }, 80 [PIX_FMT_YUV444P] = { 81 .nb_channels = 3, 82 .color_type = FF_COLOR_YUV, 83 .pixel_type = FF_PIXEL_PLANAR, 84 .depth = 8, 85 }, 86 [PIX_FMT_YUYV422] = { 87 .nb_channels = 1, 88 .color_type = FF_COLOR_YUV, 89 .pixel_type = FF_PIXEL_PACKED, 90 .depth = 8, 91 }, 92 [PIX_FMT_UYVY422] = { 93 .nb_channels = 1, 94 .color_type = FF_COLOR_YUV, 95 .pixel_type = FF_PIXEL_PACKED, 96 .depth = 8, 97 }, 98 [PIX_FMT_YUV410P] = { 99 .nb_channels = 3, 100 .color_type = FF_COLOR_YUV, 101 .pixel_type = FF_PIXEL_PLANAR, 102 .depth = 8, 103 }, 104 [PIX_FMT_YUV411P] = { 105 .nb_channels = 3, 106 .color_type = FF_COLOR_YUV, 107 .pixel_type = FF_PIXEL_PLANAR, 108 .depth = 8, 109 }, 110 [PIX_FMT_YUV440P] = { 111 .nb_channels = 3, 112 .color_type = FF_COLOR_YUV, 113 .pixel_type = FF_PIXEL_PLANAR, 114 .depth = 8, 115 }, 116 [PIX_FMT_YUV420P16LE] = { 117 .nb_channels = 3, 118 .color_type = FF_COLOR_YUV, 119 .pixel_type = FF_PIXEL_PLANAR, 120 .depth = 16, 121 }, 122 [PIX_FMT_YUV422P16LE] = { 123 .nb_channels = 3, 124 .color_type = FF_COLOR_YUV, 125 .pixel_type = FF_PIXEL_PLANAR, 126 .depth = 16, 127 }, 128 [PIX_FMT_YUV444P16LE] = { 129 .nb_channels = 3, 130 .color_type = FF_COLOR_YUV, 131 .pixel_type = FF_PIXEL_PLANAR, 132 .depth = 16, 133 }, 134 [PIX_FMT_YUV420P16BE] = { 135 .nb_channels = 3, 136 .color_type = FF_COLOR_YUV, 137 .pixel_type = FF_PIXEL_PLANAR, 138 .depth = 16, 139 }, 140 [PIX_FMT_YUV422P16BE] = { 141 .nb_channels = 3, 142 .color_type = FF_COLOR_YUV, 143 .pixel_type = FF_PIXEL_PLANAR, 144 .depth = 16, 145 }, 146 [PIX_FMT_YUV444P16BE] = { 147 .nb_channels = 3, 148 .color_type = FF_COLOR_YUV, 149 .pixel_type = FF_PIXEL_PLANAR, 150 .depth = 16, 151 }, 152 153 154 /* YUV formats with alpha plane */ 155 [PIX_FMT_YUVA420P] = { 156 .nb_channels = 4, 157 .color_type = FF_COLOR_YUV, 158 .pixel_type = FF_PIXEL_PLANAR, 159 .depth = 8, 160 }, 161 162 /* JPEG YUV */ 163 [PIX_FMT_YUVJ420P] = { 164 .nb_channels = 3, 165 .color_type = FF_COLOR_YUV_JPEG, 166 .pixel_type = FF_PIXEL_PLANAR, 167 .depth = 8, 168 }, 169 [PIX_FMT_YUVJ422P] = { 170 .nb_channels = 3, 171 .color_type = FF_COLOR_YUV_JPEG, 172 .pixel_type = FF_PIXEL_PLANAR, 173 .depth = 8, 174 }, 175 [PIX_FMT_YUVJ444P] = { 176 .nb_channels = 3, 177 .color_type = FF_COLOR_YUV_JPEG, 178 .pixel_type = FF_PIXEL_PLANAR, 179 .depth = 8, 180 }, 181 [PIX_FMT_YUVJ440P] = { 182 .nb_channels = 3, 183 .color_type = FF_COLOR_YUV_JPEG, 184 .pixel_type = FF_PIXEL_PLANAR, 185 .depth = 8, 186 }, 187 188 /* RGB formats */ 189 [PIX_FMT_RGB24] = { 190 .nb_channels = 3, 191 .color_type = FF_COLOR_RGB, 192 .pixel_type = FF_PIXEL_PACKED, 193 .depth = 8, 194 }, 195 [PIX_FMT_BGR24] = { 196 .nb_channels = 3, 197 .color_type = FF_COLOR_RGB, 198 .pixel_type = FF_PIXEL_PACKED, 199 .depth = 8, 200 }, 201 [PIX_FMT_ARGB] = { 202 .nb_channels = 4, .is_alpha = 1, 203 .color_type = FF_COLOR_RGB, 204 .pixel_type = FF_PIXEL_PACKED, 205 .depth = 8, 206 }, 207 [PIX_FMT_RGB48BE] = { 208 .nb_channels = 3, 209 .color_type = FF_COLOR_RGB, 210 .pixel_type = FF_PIXEL_PACKED, 211 .depth = 16, 212 }, 213 [PIX_FMT_RGB48LE] = { 214 .nb_channels = 3, 215 .color_type = FF_COLOR_RGB, 216 .pixel_type = FF_PIXEL_PACKED, 217 .depth = 16, 218 }, 219 [PIX_FMT_RGB565BE] = { 220 .nb_channels = 3, 221 .color_type = FF_COLOR_RGB, 222 .pixel_type = FF_PIXEL_PACKED, 223 .depth = 5, 224 }, 225 [PIX_FMT_RGB565LE] = { 226 .nb_channels = 3, 227 .color_type = FF_COLOR_RGB, 228 .pixel_type = FF_PIXEL_PACKED, 229 .depth = 5, 230 }, 231 [PIX_FMT_RGB555BE] = { 232 .nb_channels = 3, 233 .color_type = FF_COLOR_RGB, 234 .pixel_type = FF_PIXEL_PACKED, 235 .depth = 5, 236 }, 237 [PIX_FMT_RGB555LE] = { 238 .nb_channels = 3, 239 .color_type = FF_COLOR_RGB, 240 .pixel_type = FF_PIXEL_PACKED, 241 .depth = 5, 242 }, 243 [PIX_FMT_RGB444BE] = { 244 .nb_channels = 3, 245 .color_type = FF_COLOR_RGB, 246 .pixel_type = FF_PIXEL_PACKED, 247 .depth = 4, 248 }, 249 [PIX_FMT_RGB444LE] = { 250 .nb_channels = 3, 251 .color_type = FF_COLOR_RGB, 252 .pixel_type = FF_PIXEL_PACKED, 253 .depth = 4, 254 }, 255 256 /* gray / mono formats */ 257 [PIX_FMT_GRAY16BE] = { 258 .nb_channels = 1, 259 .color_type = FF_COLOR_GRAY, 260 .pixel_type = FF_PIXEL_PLANAR, 261 .depth = 16, 262 }, 263 [PIX_FMT_GRAY16LE] = { 264 .nb_channels = 1, 265 .color_type = FF_COLOR_GRAY, 266 .pixel_type = FF_PIXEL_PLANAR, 267 .depth = 16, 268 }, 269 [PIX_FMT_GRAY8] = { 270 .nb_channels = 1, 271 .color_type = FF_COLOR_GRAY, 272 .pixel_type = FF_PIXEL_PLANAR, 273 .depth = 8, 274 }, 275 [PIX_FMT_MONOWHITE] = { 276 .nb_channels = 1, 277 .color_type = FF_COLOR_GRAY, 278 .pixel_type = FF_PIXEL_PLANAR, 279 .depth = 1, 280 }, 281 [PIX_FMT_MONOBLACK] = { 282 .nb_channels = 1, 283 .color_type = FF_COLOR_GRAY, 284 .pixel_type = FF_PIXEL_PLANAR, 285 .depth = 1, 286 }, 287 288 /* paletted formats */ 289 [PIX_FMT_PAL8] = { 290 .nb_channels = 4, .is_alpha = 1, 291 .color_type = FF_COLOR_RGB, 292 .pixel_type = FF_PIXEL_PALETTE, 293 .depth = 8, 294 }, 295 [PIX_FMT_UYYVYY411] = { 296 .nb_channels = 1, 297 .color_type = FF_COLOR_YUV, 298 .pixel_type = FF_PIXEL_PACKED, 299 .depth = 8, 300 }, 301 [PIX_FMT_ABGR] = { 302 .nb_channels = 4, .is_alpha = 1, 303 .color_type = FF_COLOR_RGB, 304 .pixel_type = FF_PIXEL_PACKED, 305 .depth = 8, 306 }, 307 [PIX_FMT_BGR565BE] = { 308 .nb_channels = 3, 309 .color_type = FF_COLOR_RGB, 310 .pixel_type = FF_PIXEL_PACKED, 311 .depth = 5, 312 }, 313 [PIX_FMT_BGR565LE] = { 314 .nb_channels = 3, 315 .color_type = FF_COLOR_RGB, 316 .pixel_type = FF_PIXEL_PACKED, 317 .depth = 5, 318 }, 319 [PIX_FMT_BGR555BE] = { 320 .nb_channels = 3, 321 .color_type = FF_COLOR_RGB, 322 .pixel_type = FF_PIXEL_PACKED, 323 .depth = 5, 324 }, 325 [PIX_FMT_BGR555LE] = { 326 .nb_channels = 3, 327 .color_type = FF_COLOR_RGB, 328 .pixel_type = FF_PIXEL_PACKED, 329 .depth = 5, 330 }, 331 [PIX_FMT_BGR444BE] = { 332 .nb_channels = 3, 333 .color_type = FF_COLOR_RGB, 334 .pixel_type = FF_PIXEL_PACKED, 335 .depth = 4, 336 }, 337 [PIX_FMT_BGR444LE] = { 338 .nb_channels = 3, 339 .color_type = FF_COLOR_RGB, 340 .pixel_type = FF_PIXEL_PACKED, 341 .depth = 4, 342 }, 343 [PIX_FMT_RGB8] = { 344 .nb_channels = 1, 345 .color_type = FF_COLOR_RGB, 346 .pixel_type = FF_PIXEL_PACKED, 347 .depth = 8, 348 }, 349 [PIX_FMT_RGB4] = { 350 .nb_channels = 1, 351 .color_type = FF_COLOR_RGB, 352 .pixel_type = FF_PIXEL_PACKED, 353 .depth = 4, 354 }, 355 [PIX_FMT_RGB4_BYTE] = { 356 .nb_channels = 1, 357 .color_type = FF_COLOR_RGB, 358 .pixel_type = FF_PIXEL_PACKED, 359 .depth = 8, 360 }, 361 [PIX_FMT_BGR8] = { 362 .nb_channels = 1, 363 .color_type = FF_COLOR_RGB, 364 .pixel_type = FF_PIXEL_PACKED, 365 .depth = 8, 366 }, 367 [PIX_FMT_BGR4] = { 368 .nb_channels = 1, 369 .color_type = FF_COLOR_RGB, 370 .pixel_type = FF_PIXEL_PACKED, 371 .depth = 4, 372 }, 373 [PIX_FMT_BGR4_BYTE] = { 374 .nb_channels = 1, 375 .color_type = FF_COLOR_RGB, 376 .pixel_type = FF_PIXEL_PACKED, 377 .depth = 8, 378 }, 379 [PIX_FMT_NV12] = { 380 .nb_channels = 2, 381 .color_type = FF_COLOR_YUV, 382 .pixel_type = FF_PIXEL_PLANAR, 383 .depth = 8, 384 }, 385 [PIX_FMT_NV21] = { 386 .nb_channels = 2, 387 .color_type = FF_COLOR_YUV, 388 .pixel_type = FF_PIXEL_PLANAR, 389 .depth = 8, 390 }, 391 392 [PIX_FMT_BGRA] = { 393 .nb_channels = 4, .is_alpha = 1, 394 .color_type = FF_COLOR_RGB, 395 .pixel_type = FF_PIXEL_PACKED, 396 .depth = 8, 397 }, 398 [PIX_FMT_RGBA] = { 399 .nb_channels = 4, .is_alpha = 1, 400 .color_type = FF_COLOR_RGB, 401 .pixel_type = FF_PIXEL_PACKED, 402 .depth = 8, 403 }, 404}; 405 406void avcodec_get_chroma_sub_sample(enum PixelFormat pix_fmt, int *h_shift, int *v_shift) 407{ 408 *h_shift = av_pix_fmt_descriptors[pix_fmt].log2_chroma_w; 409 *v_shift = av_pix_fmt_descriptors[pix_fmt].log2_chroma_h; 410} 411 412const char *avcodec_get_pix_fmt_name(enum PixelFormat pix_fmt) 413{ 414 if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB) 415 return NULL; 416 else 417 return av_pix_fmt_descriptors[pix_fmt].name; 418} 419 420#if LIBAVCODEC_VERSION_MAJOR < 53 421enum PixelFormat avcodec_get_pix_fmt(const char *name) 422{ 423 return av_get_pix_fmt(name); 424} 425#endif 426 427void avcodec_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt) 428{ 429 /* print header */ 430 if (pix_fmt < 0) 431 snprintf (buf, buf_size, 432 "name " " nb_channels" " depth" " is_alpha" 433 ); 434 else{ 435 PixFmtInfo info= pix_fmt_info[pix_fmt]; 436 437 char is_alpha_char= info.is_alpha ? 'y' : 'n'; 438 439 snprintf (buf, buf_size, 440 "%-11s %5d %9d %6c", 441 av_pix_fmt_descriptors[pix_fmt].name, 442 info.nb_channels, 443 info.depth, 444 is_alpha_char 445 ); 446 } 447} 448 449int ff_is_hwaccel_pix_fmt(enum PixelFormat pix_fmt) 450{ 451 return av_pix_fmt_descriptors[pix_fmt].flags & PIX_FMT_HWACCEL; 452} 453 454int ff_set_systematic_pal(uint32_t pal[256], enum PixelFormat pix_fmt){ 455 int i; 456 457 for(i=0; i<256; i++){ 458 int r,g,b; 459 460 switch(pix_fmt) { 461 case PIX_FMT_RGB8: 462 r= (i>>5 )*36; 463 g= ((i>>2)&7)*36; 464 b= (i&3 )*85; 465 break; 466 case PIX_FMT_BGR8: 467 b= (i>>6 )*85; 468 g= ((i>>3)&7)*36; 469 r= (i&7 )*36; 470 break; 471 case PIX_FMT_RGB4_BYTE: 472 r= (i>>3 )*255; 473 g= ((i>>1)&3)*85; 474 b= (i&1 )*255; 475 break; 476 case PIX_FMT_BGR4_BYTE: 477 b= (i>>3 )*255; 478 g= ((i>>1)&3)*85; 479 r= (i&1 )*255; 480 break; 481 case PIX_FMT_GRAY8: 482 r=b=g= i; 483 break; 484 default: 485 return -1; 486 } 487 pal[i] = b + (g<<8) + (r<<16); 488 } 489 490 return 0; 491} 492 493int ff_fill_linesize(AVPicture *picture, enum PixelFormat pix_fmt, int width) 494{ 495 int i; 496 const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt]; 497 int max_plane_step [4]; 498 int max_plane_step_comp[4]; 499 500 memset(picture->linesize, 0, sizeof(picture->linesize)); 501 502 if (desc->flags & PIX_FMT_HWACCEL) 503 return -1; 504 505 if (desc->flags & PIX_FMT_BITSTREAM) { 506 picture->linesize[0] = (width * (desc->comp[0].step_minus1+1) + 7) >> 3; 507 return 0; 508 } 509 510 memset(max_plane_step , 0, sizeof(max_plane_step )); 511 memset(max_plane_step_comp, 0, sizeof(max_plane_step_comp)); 512 for (i = 0; i < 4; i++) { 513 const AVComponentDescriptor *comp = &(desc->comp[i]); 514 if ((comp->step_minus1+1) > max_plane_step[comp->plane]) { 515 max_plane_step [comp->plane] = comp->step_minus1+1; 516 max_plane_step_comp[comp->plane] = i; 517 } 518 } 519 520 for (i = 0; i < 4; i++) { 521 int s = (max_plane_step_comp[i] == 1 || max_plane_step_comp[i] == 2) ? desc->log2_chroma_w : 0; 522 picture->linesize[i] = max_plane_step[i] * (((width + (1 << s) - 1)) >> s); 523 } 524 525 return 0; 526} 527 528int ff_fill_pointer(AVPicture *picture, uint8_t *ptr, enum PixelFormat pix_fmt, 529 int height) 530{ 531 int size, h2, size2; 532 const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt]; 533 534 size = picture->linesize[0] * height; 535 switch(pix_fmt) { 536 case PIX_FMT_YUV420P: 537 case PIX_FMT_YUV422P: 538 case PIX_FMT_YUV444P: 539 case PIX_FMT_YUV410P: 540 case PIX_FMT_YUV411P: 541 case PIX_FMT_YUV440P: 542 case PIX_FMT_YUVJ420P: 543 case PIX_FMT_YUVJ422P: 544 case PIX_FMT_YUVJ444P: 545 case PIX_FMT_YUVJ440P: 546 case PIX_FMT_YUV420P16LE: 547 case PIX_FMT_YUV422P16LE: 548 case PIX_FMT_YUV444P16LE: 549 case PIX_FMT_YUV420P16BE: 550 case PIX_FMT_YUV422P16BE: 551 case PIX_FMT_YUV444P16BE: 552 h2 = (height + (1 << desc->log2_chroma_h) - 1) >> desc->log2_chroma_h; 553 size2 = picture->linesize[1] * h2; 554 picture->data[0] = ptr; 555 picture->data[1] = picture->data[0] + size; 556 picture->data[2] = picture->data[1] + size2; 557 picture->data[3] = NULL; 558 return size + 2 * size2; 559 case PIX_FMT_YUVA420P: 560 h2 = (height + (1 << desc->log2_chroma_h) - 1) >> desc->log2_chroma_h; 561 size2 = picture->linesize[1] * h2; 562 picture->data[0] = ptr; 563 picture->data[1] = picture->data[0] + size; 564 picture->data[2] = picture->data[1] + size2; 565 picture->data[3] = picture->data[1] + size2 + size2; 566 return 2 * size + 2 * size2; 567 case PIX_FMT_NV12: 568 case PIX_FMT_NV21: 569 h2 = (height + (1 << desc->log2_chroma_h) - 1) >> desc->log2_chroma_h; 570 size2 = picture->linesize[1] * h2; 571 picture->data[0] = ptr; 572 picture->data[1] = picture->data[0] + size; 573 picture->data[2] = NULL; 574 picture->data[3] = NULL; 575 return size + size2; 576 case PIX_FMT_RGB24: 577 case PIX_FMT_BGR24: 578 case PIX_FMT_ARGB: 579 case PIX_FMT_ABGR: 580 case PIX_FMT_RGBA: 581 case PIX_FMT_BGRA: 582 case PIX_FMT_RGB48BE: 583 case PIX_FMT_RGB48LE: 584 case PIX_FMT_GRAY16BE: 585 case PIX_FMT_GRAY16LE: 586 case PIX_FMT_BGR444BE: 587 case PIX_FMT_BGR444LE: 588 case PIX_FMT_BGR555BE: 589 case PIX_FMT_BGR555LE: 590 case PIX_FMT_BGR565BE: 591 case PIX_FMT_BGR565LE: 592 case PIX_FMT_RGB444BE: 593 case PIX_FMT_RGB444LE: 594 case PIX_FMT_RGB555BE: 595 case PIX_FMT_RGB555LE: 596 case PIX_FMT_RGB565BE: 597 case PIX_FMT_RGB565LE: 598 case PIX_FMT_YUYV422: 599 case PIX_FMT_UYVY422: 600 case PIX_FMT_UYYVYY411: 601 case PIX_FMT_RGB4: 602 case PIX_FMT_BGR4: 603 case PIX_FMT_MONOWHITE: 604 case PIX_FMT_MONOBLACK: 605 case PIX_FMT_Y400A: 606 picture->data[0] = ptr; 607 picture->data[1] = NULL; 608 picture->data[2] = NULL; 609 picture->data[3] = NULL; 610 return size; 611 case PIX_FMT_PAL8: 612 case PIX_FMT_RGB8: 613 case PIX_FMT_BGR8: 614 case PIX_FMT_RGB4_BYTE: 615 case PIX_FMT_BGR4_BYTE: 616 case PIX_FMT_GRAY8: 617 size2 = (size + 3) & ~3; 618 picture->data[0] = ptr; 619 picture->data[1] = ptr + size2; /* palette is stored here as 256 32 bit words */ 620 picture->data[2] = NULL; 621 picture->data[3] = NULL; 622 return size2 + 256 * 4; 623 default: 624 picture->data[0] = NULL; 625 picture->data[1] = NULL; 626 picture->data[2] = NULL; 627 picture->data[3] = NULL; 628 return -1; 629 } 630} 631 632int avpicture_fill(AVPicture *picture, uint8_t *ptr, 633 enum PixelFormat pix_fmt, int width, int height) 634{ 635 636 if(avcodec_check_dimensions(NULL, width, height)) 637 return -1; 638 639 if (ff_fill_linesize(picture, pix_fmt, width)) 640 return -1; 641 642 return ff_fill_pointer(picture, ptr, pix_fmt, height); 643} 644 645int avpicture_layout(const AVPicture* src, enum PixelFormat pix_fmt, int width, int height, 646 unsigned char *dest, int dest_size) 647{ 648 const PixFmtInfo* pf = &pix_fmt_info[pix_fmt]; 649 const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt]; 650 int i, j, w, ow, h, oh, data_planes; 651 const unsigned char* s; 652 int size = avpicture_get_size(pix_fmt, width, height); 653 654 if (size > dest_size || size < 0) 655 return -1; 656 657 if (pf->pixel_type == FF_PIXEL_PACKED || pf->pixel_type == FF_PIXEL_PALETTE) { 658 if (pix_fmt == PIX_FMT_YUYV422 || 659 pix_fmt == PIX_FMT_UYVY422 || 660 pix_fmt == PIX_FMT_BGR565BE || 661 pix_fmt == PIX_FMT_BGR565LE || 662 pix_fmt == PIX_FMT_BGR555BE || 663 pix_fmt == PIX_FMT_BGR555LE || 664 pix_fmt == PIX_FMT_BGR444BE || 665 pix_fmt == PIX_FMT_BGR444LE || 666 pix_fmt == PIX_FMT_RGB565BE || 667 pix_fmt == PIX_FMT_RGB565LE || 668 pix_fmt == PIX_FMT_RGB555BE || 669 pix_fmt == PIX_FMT_RGB555LE || 670 pix_fmt == PIX_FMT_RGB444BE || 671 pix_fmt == PIX_FMT_RGB444LE) 672 w = width * 2; 673 else if (pix_fmt == PIX_FMT_UYYVYY411) 674 w = width + width/2; 675 else if (pix_fmt == PIX_FMT_PAL8) 676 w = width; 677 else 678 w = width * (pf->depth * pf->nb_channels / 8); 679 680 data_planes = 1; 681 h = height; 682 } else { 683 data_planes = pf->nb_channels; 684 w = (width*pf->depth + 7)/8; 685 h = height; 686 } 687 688 ow = w; 689 oh = h; 690 691 for (i=0; i<data_planes; i++) { 692 if (i == 1) { 693 w = (- ((-width) >> desc->log2_chroma_w) * pf->depth + 7) / 8; 694 h = -((-height) >> desc->log2_chroma_h); 695 if (pix_fmt == PIX_FMT_NV12 || pix_fmt == PIX_FMT_NV21) 696 w <<= 1; 697 } else if (i == 3) { 698 w = ow; 699 h = oh; 700 } 701 s = src->data[i]; 702 for(j=0; j<h; j++) { 703 memcpy(dest, s, w); 704 dest += w; 705 s += src->linesize[i]; 706 } 707 } 708 709 if (pf->pixel_type == FF_PIXEL_PALETTE) 710 memcpy((unsigned char *)(((size_t)dest + 3) & ~3), src->data[1], 256 * 4); 711 712 return size; 713} 714 715int avpicture_get_size(enum PixelFormat pix_fmt, int width, int height) 716{ 717 AVPicture dummy_pict; 718 if(avcodec_check_dimensions(NULL, width, height)) 719 return -1; 720 switch (pix_fmt) { 721 case PIX_FMT_RGB8: 722 case PIX_FMT_BGR8: 723 case PIX_FMT_RGB4_BYTE: 724 case PIX_FMT_BGR4_BYTE: 725 case PIX_FMT_GRAY8: 726 // do not include palette for these pseudo-paletted formats 727 return width * height; 728 } 729 return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height); 730} 731 732int avcodec_get_pix_fmt_loss(enum PixelFormat dst_pix_fmt, enum PixelFormat src_pix_fmt, 733 int has_alpha) 734{ 735 const PixFmtInfo *pf, *ps; 736 const AVPixFmtDescriptor *src_desc = &av_pix_fmt_descriptors[src_pix_fmt]; 737 const AVPixFmtDescriptor *dst_desc = &av_pix_fmt_descriptors[dst_pix_fmt]; 738 int loss; 739 740 ps = &pix_fmt_info[src_pix_fmt]; 741 742 /* compute loss */ 743 loss = 0; 744 pf = &pix_fmt_info[dst_pix_fmt]; 745 if (pf->depth < ps->depth || 746 ((dst_pix_fmt == PIX_FMT_RGB555BE || dst_pix_fmt == PIX_FMT_RGB555LE || 747 dst_pix_fmt == PIX_FMT_BGR555BE || dst_pix_fmt == PIX_FMT_BGR555LE) && 748 (src_pix_fmt == PIX_FMT_RGB565BE || src_pix_fmt == PIX_FMT_RGB565LE || 749 src_pix_fmt == PIX_FMT_BGR565BE || src_pix_fmt == PIX_FMT_BGR565LE))) 750 loss |= FF_LOSS_DEPTH; 751 if (dst_desc->log2_chroma_w > src_desc->log2_chroma_w || 752 dst_desc->log2_chroma_h > src_desc->log2_chroma_h) 753 loss |= FF_LOSS_RESOLUTION; 754 switch(pf->color_type) { 755 case FF_COLOR_RGB: 756 if (ps->color_type != FF_COLOR_RGB && 757 ps->color_type != FF_COLOR_GRAY) 758 loss |= FF_LOSS_COLORSPACE; 759 break; 760 case FF_COLOR_GRAY: 761 if (ps->color_type != FF_COLOR_GRAY) 762 loss |= FF_LOSS_COLORSPACE; 763 break; 764 case FF_COLOR_YUV: 765 if (ps->color_type != FF_COLOR_YUV) 766 loss |= FF_LOSS_COLORSPACE; 767 break; 768 case FF_COLOR_YUV_JPEG: 769 if (ps->color_type != FF_COLOR_YUV_JPEG && 770 ps->color_type != FF_COLOR_YUV && 771 ps->color_type != FF_COLOR_GRAY) 772 loss |= FF_LOSS_COLORSPACE; 773 break; 774 default: 775 /* fail safe test */ 776 if (ps->color_type != pf->color_type) 777 loss |= FF_LOSS_COLORSPACE; 778 break; 779 } 780 if (pf->color_type == FF_COLOR_GRAY && 781 ps->color_type != FF_COLOR_GRAY) 782 loss |= FF_LOSS_CHROMA; 783 if (!pf->is_alpha && (ps->is_alpha && has_alpha)) 784 loss |= FF_LOSS_ALPHA; 785 if (pf->pixel_type == FF_PIXEL_PALETTE && 786 (ps->pixel_type != FF_PIXEL_PALETTE && ps->color_type != FF_COLOR_GRAY)) 787 loss |= FF_LOSS_COLORQUANT; 788 return loss; 789} 790 791static int avg_bits_per_pixel(enum PixelFormat pix_fmt) 792{ 793 int bits; 794 const PixFmtInfo *pf; 795 const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt]; 796 797 pf = &pix_fmt_info[pix_fmt]; 798 switch(pf->pixel_type) { 799 case FF_PIXEL_PACKED: 800 switch(pix_fmt) { 801 case PIX_FMT_YUYV422: 802 case PIX_FMT_UYVY422: 803 case PIX_FMT_RGB565BE: 804 case PIX_FMT_RGB565LE: 805 case PIX_FMT_RGB555BE: 806 case PIX_FMT_RGB555LE: 807 case PIX_FMT_RGB444BE: 808 case PIX_FMT_RGB444LE: 809 case PIX_FMT_BGR565BE: 810 case PIX_FMT_BGR565LE: 811 case PIX_FMT_BGR555BE: 812 case PIX_FMT_BGR555LE: 813 case PIX_FMT_BGR444BE: 814 case PIX_FMT_BGR444LE: 815 bits = 16; 816 break; 817 case PIX_FMT_UYYVYY411: 818 bits = 12; 819 break; 820 default: 821 bits = pf->depth * pf->nb_channels; 822 break; 823 } 824 break; 825 case FF_PIXEL_PLANAR: 826 if (desc->log2_chroma_w == 0 && desc->log2_chroma_h == 0) { 827 bits = pf->depth * pf->nb_channels; 828 } else { 829 bits = pf->depth + ((2 * pf->depth) >> 830 (desc->log2_chroma_w + desc->log2_chroma_h)); 831 } 832 break; 833 case FF_PIXEL_PALETTE: 834 bits = 8; 835 break; 836 default: 837 bits = -1; 838 break; 839 } 840 return bits; 841} 842 843static enum PixelFormat avcodec_find_best_pix_fmt1(int64_t pix_fmt_mask, 844 enum PixelFormat src_pix_fmt, 845 int has_alpha, 846 int loss_mask) 847{ 848 int dist, i, loss, min_dist; 849 enum PixelFormat dst_pix_fmt; 850 851 /* find exact color match with smallest size */ 852 dst_pix_fmt = PIX_FMT_NONE; 853 min_dist = 0x7fffffff; 854 for(i = 0;i < PIX_FMT_NB; i++) { 855 if (pix_fmt_mask & (1ULL << i)) { 856 loss = avcodec_get_pix_fmt_loss(i, src_pix_fmt, has_alpha) & loss_mask; 857 if (loss == 0) { 858 dist = avg_bits_per_pixel(i); 859 if (dist < min_dist) { 860 min_dist = dist; 861 dst_pix_fmt = i; 862 } 863 } 864 } 865 } 866 return dst_pix_fmt; 867} 868 869enum PixelFormat avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, enum PixelFormat src_pix_fmt, 870 int has_alpha, int *loss_ptr) 871{ 872 enum PixelFormat dst_pix_fmt; 873 int loss_mask, i; 874 static const int loss_mask_order[] = { 875 ~0, /* no loss first */ 876 ~FF_LOSS_ALPHA, 877 ~FF_LOSS_RESOLUTION, 878 ~(FF_LOSS_COLORSPACE | FF_LOSS_RESOLUTION), 879 ~FF_LOSS_COLORQUANT, 880 ~FF_LOSS_DEPTH, 881 0, 882 }; 883 884 /* try with successive loss */ 885 i = 0; 886 for(;;) { 887 loss_mask = loss_mask_order[i++]; 888 dst_pix_fmt = avcodec_find_best_pix_fmt1(pix_fmt_mask, src_pix_fmt, 889 has_alpha, loss_mask); 890 if (dst_pix_fmt >= 0) 891 goto found; 892 if (loss_mask == 0) 893 break; 894 } 895 return PIX_FMT_NONE; 896 found: 897 if (loss_ptr) 898 *loss_ptr = avcodec_get_pix_fmt_loss(dst_pix_fmt, src_pix_fmt, has_alpha); 899 return dst_pix_fmt; 900} 901 902void ff_img_copy_plane(uint8_t *dst, int dst_wrap, 903 const uint8_t *src, int src_wrap, 904 int width, int height) 905{ 906 if((!dst) || (!src)) 907 return; 908 for(;height > 0; height--) { 909 memcpy(dst, src, width); 910 dst += dst_wrap; 911 src += src_wrap; 912 } 913} 914 915int ff_get_plane_bytewidth(enum PixelFormat pix_fmt, int width, int plane) 916{ 917 int bits; 918 const PixFmtInfo *pf = &pix_fmt_info[pix_fmt]; 919 const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt]; 920 921 pf = &pix_fmt_info[pix_fmt]; 922 switch(pf->pixel_type) { 923 case FF_PIXEL_PACKED: 924 switch(pix_fmt) { 925 case PIX_FMT_YUYV422: 926 case PIX_FMT_UYVY422: 927 case PIX_FMT_RGB565BE: 928 case PIX_FMT_RGB565LE: 929 case PIX_FMT_RGB555BE: 930 case PIX_FMT_RGB555LE: 931 case PIX_FMT_RGB444BE: 932 case PIX_FMT_RGB444LE: 933 case PIX_FMT_BGR565BE: 934 case PIX_FMT_BGR565LE: 935 case PIX_FMT_BGR555BE: 936 case PIX_FMT_BGR555LE: 937 case PIX_FMT_BGR444BE: 938 case PIX_FMT_BGR444LE: 939 bits = 16; 940 break; 941 case PIX_FMT_UYYVYY411: 942 bits = 12; 943 break; 944 default: 945 bits = pf->depth * pf->nb_channels; 946 break; 947 } 948 return (width * bits + 7) >> 3; 949 break; 950 case FF_PIXEL_PLANAR: 951 if (plane == 1 || plane == 2) 952 width= -((-width)>>desc->log2_chroma_w); 953 954 return (width * pf->depth + 7) >> 3; 955 break; 956 case FF_PIXEL_PALETTE: 957 if (plane == 0) 958 return width; 959 break; 960 } 961 962 return -1; 963} 964 965void av_picture_copy(AVPicture *dst, const AVPicture *src, 966 enum PixelFormat pix_fmt, int width, int height) 967{ 968 int i; 969 const PixFmtInfo *pf = &pix_fmt_info[pix_fmt]; 970 const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt]; 971 972 switch(pf->pixel_type) { 973 case FF_PIXEL_PACKED: 974 case FF_PIXEL_PLANAR: 975 for(i = 0; i < pf->nb_channels; i++) { 976 int h; 977 int bwidth = ff_get_plane_bytewidth(pix_fmt, width, i); 978 h = height; 979 if (i == 1 || i == 2) { 980 h= -((-height)>>desc->log2_chroma_h); 981 } 982 ff_img_copy_plane(dst->data[i], dst->linesize[i], 983 src->data[i], src->linesize[i], 984 bwidth, h); 985 } 986 break; 987 case FF_PIXEL_PALETTE: 988 ff_img_copy_plane(dst->data[0], dst->linesize[0], 989 src->data[0], src->linesize[0], 990 width, height); 991 /* copy the palette */ 992 memcpy(dst->data[1], src->data[1], 4*256); 993 break; 994 } 995} 996 997/* 2x2 -> 1x1 */ 998void ff_shrink22(uint8_t *dst, int dst_wrap, 999 const uint8_t *src, int src_wrap, 1000 int width, int height) 1001{ 1002 int w; 1003 const uint8_t *s1, *s2; 1004 uint8_t *d; 1005 1006 for(;height > 0; height--) { 1007 s1 = src; 1008 s2 = s1 + src_wrap; 1009 d = dst; 1010 for(w = width;w >= 4; w-=4) { 1011 d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2; 1012 d[1] = (s1[2] + s1[3] + s2[2] + s2[3] + 2) >> 2; 1013 d[2] = (s1[4] + s1[5] + s2[4] + s2[5] + 2) >> 2; 1014 d[3] = (s1[6] + s1[7] + s2[6] + s2[7] + 2) >> 2; 1015 s1 += 8; 1016 s2 += 8; 1017 d += 4; 1018 } 1019 for(;w > 0; w--) { 1020 d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2; 1021 s1 += 2; 1022 s2 += 2; 1023 d++; 1024 } 1025 src += 2 * src_wrap; 1026 dst += dst_wrap; 1027 } 1028} 1029 1030/* 4x4 -> 1x1 */ 1031void ff_shrink44(uint8_t *dst, int dst_wrap, 1032 const uint8_t *src, int src_wrap, 1033 int width, int height) 1034{ 1035 int w; 1036 const uint8_t *s1, *s2, *s3, *s4; 1037 uint8_t *d; 1038 1039 for(;height > 0; height--) { 1040 s1 = src; 1041 s2 = s1 + src_wrap; 1042 s3 = s2 + src_wrap; 1043 s4 = s3 + src_wrap; 1044 d = dst; 1045 for(w = width;w > 0; w--) { 1046 d[0] = (s1[0] + s1[1] + s1[2] + s1[3] + 1047 s2[0] + s2[1] + s2[2] + s2[3] + 1048 s3[0] + s3[1] + s3[2] + s3[3] + 1049 s4[0] + s4[1] + s4[2] + s4[3] + 8) >> 4; 1050 s1 += 4; 1051 s2 += 4; 1052 s3 += 4; 1053 s4 += 4; 1054 d++; 1055 } 1056 src += 4 * src_wrap; 1057 dst += dst_wrap; 1058 } 1059} 1060 1061/* 8x8 -> 1x1 */ 1062void ff_shrink88(uint8_t *dst, int dst_wrap, 1063 const uint8_t *src, int src_wrap, 1064 int width, int height) 1065{ 1066 int w, i; 1067 1068 for(;height > 0; height--) { 1069 for(w = width;w > 0; w--) { 1070 int tmp=0; 1071 for(i=0; i<8; i++){ 1072 tmp += src[0] + src[1] + src[2] + src[3] + src[4] + src[5] + src[6] + src[7]; 1073 src += src_wrap; 1074 } 1075 *(dst++) = (tmp + 32)>>6; 1076 src += 8 - 8*src_wrap; 1077 } 1078 src += 8*src_wrap - 8*width; 1079 dst += dst_wrap - width; 1080 } 1081} 1082 1083 1084int avpicture_alloc(AVPicture *picture, 1085 enum PixelFormat pix_fmt, int width, int height) 1086{ 1087 int size; 1088 void *ptr; 1089 1090 size = avpicture_fill(picture, NULL, pix_fmt, width, height); 1091 if(size<0) 1092 goto fail; 1093 ptr = av_malloc(size); 1094 if (!ptr) 1095 goto fail; 1096 avpicture_fill(picture, ptr, pix_fmt, width, height); 1097 if(picture->data[1] && !picture->data[2]) 1098 ff_set_systematic_pal((uint32_t*)picture->data[1], pix_fmt); 1099 1100 return 0; 1101 fail: 1102 memset(picture, 0, sizeof(AVPicture)); 1103 return -1; 1104} 1105 1106void avpicture_free(AVPicture *picture) 1107{ 1108 av_free(picture->data[0]); 1109} 1110 1111/* return true if yuv planar */ 1112static inline int is_yuv_planar(const PixFmtInfo *ps) 1113{ 1114 return (ps->color_type == FF_COLOR_YUV || 1115 ps->color_type == FF_COLOR_YUV_JPEG) && 1116 ps->pixel_type == FF_PIXEL_PLANAR; 1117} 1118 1119int av_picture_crop(AVPicture *dst, const AVPicture *src, 1120 enum PixelFormat pix_fmt, int top_band, int left_band) 1121{ 1122 int y_shift; 1123 int x_shift; 1124 1125 if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB || !is_yuv_planar(&pix_fmt_info[pix_fmt])) 1126 return -1; 1127 1128 y_shift = av_pix_fmt_descriptors[pix_fmt].log2_chroma_h; 1129 x_shift = av_pix_fmt_descriptors[pix_fmt].log2_chroma_w; 1130 1131 dst->data[0] = src->data[0] + (top_band * src->linesize[0]) + left_band; 1132 dst->data[1] = src->data[1] + ((top_band >> y_shift) * src->linesize[1]) + (left_band >> x_shift); 1133 dst->data[2] = src->data[2] + ((top_band >> y_shift) * src->linesize[2]) + (left_band >> x_shift); 1134 1135 dst->linesize[0] = src->linesize[0]; 1136 dst->linesize[1] = src->linesize[1]; 1137 dst->linesize[2] = src->linesize[2]; 1138 return 0; 1139} 1140 1141int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width, 1142 enum PixelFormat pix_fmt, int padtop, int padbottom, int padleft, int padright, 1143 int *color) 1144{ 1145 uint8_t *optr; 1146 int y_shift; 1147 int x_shift; 1148 int yheight; 1149 int i, y; 1150 1151 if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB || 1152 !is_yuv_planar(&pix_fmt_info[pix_fmt])) return -1; 1153 1154 for (i = 0; i < 3; i++) { 1155 x_shift = i ? av_pix_fmt_descriptors[pix_fmt].log2_chroma_w : 0; 1156 y_shift = i ? av_pix_fmt_descriptors[pix_fmt].log2_chroma_h : 0; 1157 1158 if (padtop || padleft) { 1159 memset(dst->data[i], color[i], 1160 dst->linesize[i] * (padtop >> y_shift) + (padleft >> x_shift)); 1161 } 1162 1163 if (padleft || padright) { 1164 optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) + 1165 (dst->linesize[i] - (padright >> x_shift)); 1166 yheight = (height - 1 - (padtop + padbottom)) >> y_shift; 1167 for (y = 0; y < yheight; y++) { 1168 memset(optr, color[i], (padleft + padright) >> x_shift); 1169 optr += dst->linesize[i]; 1170 } 1171 } 1172 1173 if (src) { /* first line */ 1174 uint8_t *iptr = src->data[i]; 1175 optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) + 1176 (padleft >> x_shift); 1177 memcpy(optr, iptr, (width - padleft - padright) >> x_shift); 1178 iptr += src->linesize[i]; 1179 optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) + 1180 (dst->linesize[i] - (padright >> x_shift)); 1181 yheight = (height - 1 - (padtop + padbottom)) >> y_shift; 1182 for (y = 0; y < yheight; y++) { 1183 memset(optr, color[i], (padleft + padright) >> x_shift); 1184 memcpy(optr + ((padleft + padright) >> x_shift), iptr, 1185 (width - padleft - padright) >> x_shift); 1186 iptr += src->linesize[i]; 1187 optr += dst->linesize[i]; 1188 } 1189 } 1190 1191 if (padbottom || padright) { 1192 optr = dst->data[i] + dst->linesize[i] * 1193 ((height - padbottom) >> y_shift) - (padright >> x_shift); 1194 memset(optr, color[i],dst->linesize[i] * 1195 (padbottom >> y_shift) + (padright >> x_shift)); 1196 } 1197 } 1198 return 0; 1199} 1200 1201/* NOTE: we scan all the pixels to have an exact information */ 1202static int get_alpha_info_pal8(const AVPicture *src, int width, int height) 1203{ 1204 const unsigned char *p; 1205 int src_wrap, ret, x, y; 1206 unsigned int a; 1207 uint32_t *palette = (uint32_t *)src->data[1]; 1208 1209 p = src->data[0]; 1210 src_wrap = src->linesize[0] - width; 1211 ret = 0; 1212 for(y=0;y<height;y++) { 1213 for(x=0;x<width;x++) { 1214 a = palette[p[0]] >> 24; 1215 if (a == 0x00) { 1216 ret |= FF_ALPHA_TRANSP; 1217 } else if (a != 0xff) { 1218 ret |= FF_ALPHA_SEMI_TRANSP; 1219 } 1220 p++; 1221 } 1222 p += src_wrap; 1223 } 1224 return ret; 1225} 1226 1227int img_get_alpha_info(const AVPicture *src, 1228 enum PixelFormat pix_fmt, int width, int height) 1229{ 1230 const PixFmtInfo *pf = &pix_fmt_info[pix_fmt]; 1231 int ret; 1232 1233 /* no alpha can be represented in format */ 1234 if (!pf->is_alpha) 1235 return 0; 1236 switch(pix_fmt) { 1237 case PIX_FMT_PAL8: 1238 ret = get_alpha_info_pal8(src, width, height); 1239 break; 1240 default: 1241 /* we do not know, so everything is indicated */ 1242 ret = FF_ALPHA_TRANSP | FF_ALPHA_SEMI_TRANSP; 1243 break; 1244 } 1245 return ret; 1246} 1247 1248#if HAVE_MMX 1249#define DEINT_INPLACE_LINE_LUM \ 1250 movd_m2r(lum_m4[0],mm0);\ 1251 movd_m2r(lum_m3[0],mm1);\ 1252 movd_m2r(lum_m2[0],mm2);\ 1253 movd_m2r(lum_m1[0],mm3);\ 1254 movd_m2r(lum[0],mm4);\ 1255 punpcklbw_r2r(mm7,mm0);\ 1256 movd_r2m(mm2,lum_m4[0]);\ 1257 punpcklbw_r2r(mm7,mm1);\ 1258 punpcklbw_r2r(mm7,mm2);\ 1259 punpcklbw_r2r(mm7,mm3);\ 1260 punpcklbw_r2r(mm7,mm4);\ 1261 paddw_r2r(mm3,mm1);\ 1262 psllw_i2r(1,mm2);\ 1263 paddw_r2r(mm4,mm0);\ 1264 psllw_i2r(2,mm1);\ 1265 paddw_r2r(mm6,mm2);\ 1266 paddw_r2r(mm2,mm1);\ 1267 psubusw_r2r(mm0,mm1);\ 1268 psrlw_i2r(3,mm1);\ 1269 packuswb_r2r(mm7,mm1);\ 1270 movd_r2m(mm1,lum_m2[0]); 1271 1272#define DEINT_LINE_LUM \ 1273 movd_m2r(lum_m4[0],mm0);\ 1274 movd_m2r(lum_m3[0],mm1);\ 1275 movd_m2r(lum_m2[0],mm2);\ 1276 movd_m2r(lum_m1[0],mm3);\ 1277 movd_m2r(lum[0],mm4);\ 1278 punpcklbw_r2r(mm7,mm0);\ 1279 punpcklbw_r2r(mm7,mm1);\ 1280 punpcklbw_r2r(mm7,mm2);\ 1281 punpcklbw_r2r(mm7,mm3);\ 1282 punpcklbw_r2r(mm7,mm4);\ 1283 paddw_r2r(mm3,mm1);\ 1284 psllw_i2r(1,mm2);\ 1285 paddw_r2r(mm4,mm0);\ 1286 psllw_i2r(2,mm1);\ 1287 paddw_r2r(mm6,mm2);\ 1288 paddw_r2r(mm2,mm1);\ 1289 psubusw_r2r(mm0,mm1);\ 1290 psrlw_i2r(3,mm1);\ 1291 packuswb_r2r(mm7,mm1);\ 1292 movd_r2m(mm1,dst[0]); 1293#endif 1294 1295/* filter parameters: [-1 4 2 4 -1] // 8 */ 1296static void deinterlace_line(uint8_t *dst, 1297 const uint8_t *lum_m4, const uint8_t *lum_m3, 1298 const uint8_t *lum_m2, const uint8_t *lum_m1, 1299 const uint8_t *lum, 1300 int size) 1301{ 1302#if !HAVE_MMX 1303 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; 1304 int sum; 1305 1306 for(;size > 0;size--) { 1307 sum = -lum_m4[0]; 1308 sum += lum_m3[0] << 2; 1309 sum += lum_m2[0] << 1; 1310 sum += lum_m1[0] << 2; 1311 sum += -lum[0]; 1312 dst[0] = cm[(sum + 4) >> 3]; 1313 lum_m4++; 1314 lum_m3++; 1315 lum_m2++; 1316 lum_m1++; 1317 lum++; 1318 dst++; 1319 } 1320#else 1321 1322 { 1323 pxor_r2r(mm7,mm7); 1324 movq_m2r(ff_pw_4,mm6); 1325 } 1326 for (;size > 3; size-=4) { 1327 DEINT_LINE_LUM 1328 lum_m4+=4; 1329 lum_m3+=4; 1330 lum_m2+=4; 1331 lum_m1+=4; 1332 lum+=4; 1333 dst+=4; 1334 } 1335#endif 1336} 1337static void deinterlace_line_inplace(uint8_t *lum_m4, uint8_t *lum_m3, uint8_t *lum_m2, uint8_t *lum_m1, uint8_t *lum, 1338 int size) 1339{ 1340#if !HAVE_MMX 1341 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; 1342 int sum; 1343 1344 for(;size > 0;size--) { 1345 sum = -lum_m4[0]; 1346 sum += lum_m3[0] << 2; 1347 sum += lum_m2[0] << 1; 1348 lum_m4[0]=lum_m2[0]; 1349 sum += lum_m1[0] << 2; 1350 sum += -lum[0]; 1351 lum_m2[0] = cm[(sum + 4) >> 3]; 1352 lum_m4++; 1353 lum_m3++; 1354 lum_m2++; 1355 lum_m1++; 1356 lum++; 1357 } 1358#else 1359 1360 { 1361 pxor_r2r(mm7,mm7); 1362 movq_m2r(ff_pw_4,mm6); 1363 } 1364 for (;size > 3; size-=4) { 1365 DEINT_INPLACE_LINE_LUM 1366 lum_m4+=4; 1367 lum_m3+=4; 1368 lum_m2+=4; 1369 lum_m1+=4; 1370 lum+=4; 1371 } 1372#endif 1373} 1374 1375/* deinterlacing : 2 temporal taps, 3 spatial taps linear filter. The 1376 top field is copied as is, but the bottom field is deinterlaced 1377 against the top field. */ 1378static void deinterlace_bottom_field(uint8_t *dst, int dst_wrap, 1379 const uint8_t *src1, int src_wrap, 1380 int width, int height) 1381{ 1382 const uint8_t *src_m2, *src_m1, *src_0, *src_p1, *src_p2; 1383 int y; 1384 1385 src_m2 = src1; 1386 src_m1 = src1; 1387 src_0=&src_m1[src_wrap]; 1388 src_p1=&src_0[src_wrap]; 1389 src_p2=&src_p1[src_wrap]; 1390 for(y=0;y<(height-2);y+=2) { 1391 memcpy(dst,src_m1,width); 1392 dst += dst_wrap; 1393 deinterlace_line(dst,src_m2,src_m1,src_0,src_p1,src_p2,width); 1394 src_m2 = src_0; 1395 src_m1 = src_p1; 1396 src_0 = src_p2; 1397 src_p1 += 2*src_wrap; 1398 src_p2 += 2*src_wrap; 1399 dst += dst_wrap; 1400 } 1401 memcpy(dst,src_m1,width); 1402 dst += dst_wrap; 1403 /* do last line */ 1404 deinterlace_line(dst,src_m2,src_m1,src_0,src_0,src_0,width); 1405} 1406 1407static void deinterlace_bottom_field_inplace(uint8_t *src1, int src_wrap, 1408 int width, int height) 1409{ 1410 uint8_t *src_m1, *src_0, *src_p1, *src_p2; 1411 int y; 1412 uint8_t *buf; 1413 buf = (uint8_t*)av_malloc(width); 1414 1415 src_m1 = src1; 1416 memcpy(buf,src_m1,width); 1417 src_0=&src_m1[src_wrap]; 1418 src_p1=&src_0[src_wrap]; 1419 src_p2=&src_p1[src_wrap]; 1420 for(y=0;y<(height-2);y+=2) { 1421 deinterlace_line_inplace(buf,src_m1,src_0,src_p1,src_p2,width); 1422 src_m1 = src_p1; 1423 src_0 = src_p2; 1424 src_p1 += 2*src_wrap; 1425 src_p2 += 2*src_wrap; 1426 } 1427 /* do last line */ 1428 deinterlace_line_inplace(buf,src_m1,src_0,src_0,src_0,width); 1429 av_free(buf); 1430} 1431 1432int avpicture_deinterlace(AVPicture *dst, const AVPicture *src, 1433 enum PixelFormat pix_fmt, int width, int height) 1434{ 1435 int i; 1436 1437 if (pix_fmt != PIX_FMT_YUV420P && 1438 pix_fmt != PIX_FMT_YUV422P && 1439 pix_fmt != PIX_FMT_YUV444P && 1440 pix_fmt != PIX_FMT_YUV411P && 1441 pix_fmt != PIX_FMT_GRAY8) 1442 return -1; 1443 if ((width & 3) != 0 || (height & 3) != 0) 1444 return -1; 1445 1446 for(i=0;i<3;i++) { 1447 if (i == 1) { 1448 switch(pix_fmt) { 1449 case PIX_FMT_YUV420P: 1450 width >>= 1; 1451 height >>= 1; 1452 break; 1453 case PIX_FMT_YUV422P: 1454 width >>= 1; 1455 break; 1456 case PIX_FMT_YUV411P: 1457 width >>= 2; 1458 break; 1459 default: 1460 break; 1461 } 1462 if (pix_fmt == PIX_FMT_GRAY8) { 1463 break; 1464 } 1465 } 1466 if (src == dst) { 1467 deinterlace_bottom_field_inplace(dst->data[i], dst->linesize[i], 1468 width, height); 1469 } else { 1470 deinterlace_bottom_field(dst->data[i],dst->linesize[i], 1471 src->data[i], src->linesize[i], 1472 width, height); 1473 } 1474 } 1475 emms_c(); 1476 return 0; 1477} 1478 1479