ffmpeg / libavcodec / imgconvert.c @ 5509bffa
History | View | Annotate | Download (66.1 KB)
| 1 |
/*
|
|---|---|
| 2 |
* Misc image convertion routines
|
| 3 |
* Copyright (c) 2001, 2002, 2003 Fabrice Bellard.
|
| 4 |
*
|
| 5 |
* This library is free software; you can redistribute it and/or
|
| 6 |
* modify it under the terms of the GNU Lesser General Public
|
| 7 |
* License as published by the Free Software Foundation; either
|
| 8 |
* version 2 of the License, or (at your option) any later version.
|
| 9 |
*
|
| 10 |
* This library is distributed in the hope that it will be useful,
|
| 11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
| 13 |
* Lesser General Public License for more details.
|
| 14 |
*
|
| 15 |
* You should have received a copy of the GNU Lesser General Public
|
| 16 |
* License along with this library; if not, write to the Free Software
|
| 17 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
| 18 |
*/
|
| 19 |
|
| 20 |
/**
|
| 21 |
* @file imgconvert.c
|
| 22 |
* Misc image convertion routines.
|
| 23 |
*/
|
| 24 |
|
| 25 |
/* TODO:
|
| 26 |
* - write 'ffimg' program to test all the image related stuff
|
| 27 |
* - move all api to slice based system
|
| 28 |
* - integrate deinterlacing, postprocessing and scaling in the conversion process
|
| 29 |
*/
|
| 30 |
|
| 31 |
#include "avcodec.h" |
| 32 |
#include "dsputil.h" |
| 33 |
|
| 34 |
#ifdef USE_FASTMEMCPY
|
| 35 |
#include "fastmemcpy.h" |
| 36 |
#endif
|
| 37 |
|
| 38 |
#ifdef HAVE_MMX
|
| 39 |
#include "i386/mmx.h" |
| 40 |
#endif
|
| 41 |
|
| 42 |
#define xglue(x, y) x ## y |
| 43 |
#define glue(x, y) xglue(x, y)
|
| 44 |
|
| 45 |
#define FF_COLOR_RGB 0 /* RGB color space */ |
| 46 |
#define FF_COLOR_GRAY 1 /* gray color space */ |
| 47 |
#define FF_COLOR_YUV 2 /* YUV color space. 16 <= Y <= 235, 16 <= U, V <= 240 */ |
| 48 |
#define FF_COLOR_YUV_JPEG 3 /* YUV color space. 0 <= Y <= 255, 0 <= U, V <= 255 */ |
| 49 |
|
| 50 |
#define FF_PIXEL_PLANAR 0 /* each channel has one component in AVPicture */ |
| 51 |
#define FF_PIXEL_PACKED 1 /* only one components containing all the channels */ |
| 52 |
#define FF_PIXEL_PALETTE 2 /* one components containing indexes for a palette */ |
| 53 |
|
| 54 |
typedef struct PixFmtInfo { |
| 55 |
const char *name; |
| 56 |
uint8_t nb_channels; /* number of channels (including alpha) */
|
| 57 |
uint8_t color_type; /* color type (see FF_COLOR_xxx constants) */
|
| 58 |
uint8_t pixel_type; /* pixel storage type (see FF_PIXEL_xxx constants) */
|
| 59 |
uint8_t is_alpha : 1; /* true if alpha can be specified */ |
| 60 |
uint8_t x_chroma_shift; /* X chroma subsampling factor is 2 ^ shift */
|
| 61 |
uint8_t y_chroma_shift; /* Y chroma subsampling factor is 2 ^ shift */
|
| 62 |
uint8_t depth; /* bit depth of the color components */
|
| 63 |
} PixFmtInfo; |
| 64 |
|
| 65 |
/* this table gives more information about formats */
|
| 66 |
static PixFmtInfo pix_fmt_info[PIX_FMT_NB] = {
|
| 67 |
/* YUV formats */
|
| 68 |
[PIX_FMT_YUV420P] = {
|
| 69 |
.name = "yuv420p",
|
| 70 |
.nb_channels = 3,
|
| 71 |
.color_type = FF_COLOR_YUV, |
| 72 |
.pixel_type = FF_PIXEL_PLANAR, |
| 73 |
.depth = 8,
|
| 74 |
.x_chroma_shift = 1, .y_chroma_shift = 1, |
| 75 |
}, |
| 76 |
[PIX_FMT_YUV422P] = {
|
| 77 |
.name = "yuv422p",
|
| 78 |
.nb_channels = 3,
|
| 79 |
.color_type = FF_COLOR_YUV, |
| 80 |
.pixel_type = FF_PIXEL_PLANAR, |
| 81 |
.depth = 8,
|
| 82 |
.x_chroma_shift = 1, .y_chroma_shift = 0, |
| 83 |
}, |
| 84 |
[PIX_FMT_YUV444P] = {
|
| 85 |
.name = "yuv444p",
|
| 86 |
.nb_channels = 3,
|
| 87 |
.color_type = FF_COLOR_YUV, |
| 88 |
.pixel_type = FF_PIXEL_PLANAR, |
| 89 |
.depth = 8,
|
| 90 |
.x_chroma_shift = 0, .y_chroma_shift = 0, |
| 91 |
}, |
| 92 |
[PIX_FMT_YUV422] = {
|
| 93 |
.name = "yuv422",
|
| 94 |
.nb_channels = 1,
|
| 95 |
.color_type = FF_COLOR_YUV, |
| 96 |
.pixel_type = FF_PIXEL_PACKED, |
| 97 |
.depth = 8,
|
| 98 |
.x_chroma_shift = 1, .y_chroma_shift = 0, |
| 99 |
}, |
| 100 |
[PIX_FMT_UYVY422] = {
|
| 101 |
.name = "uyvy422",
|
| 102 |
.nb_channels = 1,
|
| 103 |
.color_type = FF_COLOR_YUV, |
| 104 |
.pixel_type = FF_PIXEL_PACKED, |
| 105 |
.depth = 8,
|
| 106 |
.x_chroma_shift = 1, .y_chroma_shift = 0, |
| 107 |
}, |
| 108 |
[PIX_FMT_YUV410P] = {
|
| 109 |
.name = "yuv410p",
|
| 110 |
.nb_channels = 3,
|
| 111 |
.color_type = FF_COLOR_YUV, |
| 112 |
.pixel_type = FF_PIXEL_PLANAR, |
| 113 |
.depth = 8,
|
| 114 |
.x_chroma_shift = 2, .y_chroma_shift = 2, |
| 115 |
}, |
| 116 |
[PIX_FMT_YUV411P] = {
|
| 117 |
.name = "yuv411p",
|
| 118 |
.nb_channels = 3,
|
| 119 |
.color_type = FF_COLOR_YUV, |
| 120 |
.pixel_type = FF_PIXEL_PLANAR, |
| 121 |
.depth = 8,
|
| 122 |
.x_chroma_shift = 2, .y_chroma_shift = 0, |
| 123 |
}, |
| 124 |
|
| 125 |
/* JPEG YUV */
|
| 126 |
[PIX_FMT_YUVJ420P] = {
|
| 127 |
.name = "yuvj420p",
|
| 128 |
.nb_channels = 3,
|
| 129 |
.color_type = FF_COLOR_YUV_JPEG, |
| 130 |
.pixel_type = FF_PIXEL_PLANAR, |
| 131 |
.depth = 8,
|
| 132 |
.x_chroma_shift = 1, .y_chroma_shift = 1, |
| 133 |
}, |
| 134 |
[PIX_FMT_YUVJ422P] = {
|
| 135 |
.name = "yuvj422p",
|
| 136 |
.nb_channels = 3,
|
| 137 |
.color_type = FF_COLOR_YUV_JPEG, |
| 138 |
.pixel_type = FF_PIXEL_PLANAR, |
| 139 |
.depth = 8,
|
| 140 |
.x_chroma_shift = 1, .y_chroma_shift = 0, |
| 141 |
}, |
| 142 |
[PIX_FMT_YUVJ444P] = {
|
| 143 |
.name = "yuvj444p",
|
| 144 |
.nb_channels = 3,
|
| 145 |
.color_type = FF_COLOR_YUV_JPEG, |
| 146 |
.pixel_type = FF_PIXEL_PLANAR, |
| 147 |
.depth = 8,
|
| 148 |
.x_chroma_shift = 0, .y_chroma_shift = 0, |
| 149 |
}, |
| 150 |
|
| 151 |
/* RGB formats */
|
| 152 |
[PIX_FMT_RGB24] = {
|
| 153 |
.name = "rgb24",
|
| 154 |
.nb_channels = 3,
|
| 155 |
.color_type = FF_COLOR_RGB, |
| 156 |
.pixel_type = FF_PIXEL_PACKED, |
| 157 |
.depth = 8,
|
| 158 |
.x_chroma_shift = 0, .y_chroma_shift = 0, |
| 159 |
}, |
| 160 |
[PIX_FMT_BGR24] = {
|
| 161 |
.name = "bgr24",
|
| 162 |
.nb_channels = 3,
|
| 163 |
.color_type = FF_COLOR_RGB, |
| 164 |
.pixel_type = FF_PIXEL_PACKED, |
| 165 |
.depth = 8,
|
| 166 |
.x_chroma_shift = 0, .y_chroma_shift = 0, |
| 167 |
}, |
| 168 |
[PIX_FMT_RGBA32] = {
|
| 169 |
.name = "rgba32",
|
| 170 |
.nb_channels = 4, .is_alpha = 1, |
| 171 |
.color_type = FF_COLOR_RGB, |
| 172 |
.pixel_type = FF_PIXEL_PACKED, |
| 173 |
.depth = 8,
|
| 174 |
.x_chroma_shift = 0, .y_chroma_shift = 0, |
| 175 |
}, |
| 176 |
[PIX_FMT_RGB565] = {
|
| 177 |
.name = "rgb565",
|
| 178 |
.nb_channels = 3,
|
| 179 |
.color_type = FF_COLOR_RGB, |
| 180 |
.pixel_type = FF_PIXEL_PACKED, |
| 181 |
.depth = 5,
|
| 182 |
.x_chroma_shift = 0, .y_chroma_shift = 0, |
| 183 |
}, |
| 184 |
[PIX_FMT_RGB555] = {
|
| 185 |
.name = "rgb555",
|
| 186 |
.nb_channels = 4, .is_alpha = 1, |
| 187 |
.color_type = FF_COLOR_RGB, |
| 188 |
.pixel_type = FF_PIXEL_PACKED, |
| 189 |
.depth = 5,
|
| 190 |
.x_chroma_shift = 0, .y_chroma_shift = 0, |
| 191 |
}, |
| 192 |
|
| 193 |
/* gray / mono formats */
|
| 194 |
[PIX_FMT_GRAY8] = {
|
| 195 |
.name = "gray",
|
| 196 |
.nb_channels = 1,
|
| 197 |
.color_type = FF_COLOR_GRAY, |
| 198 |
.pixel_type = FF_PIXEL_PLANAR, |
| 199 |
.depth = 8,
|
| 200 |
}, |
| 201 |
[PIX_FMT_MONOWHITE] = {
|
| 202 |
.name = "monow",
|
| 203 |
.nb_channels = 1,
|
| 204 |
.color_type = FF_COLOR_GRAY, |
| 205 |
.pixel_type = FF_PIXEL_PLANAR, |
| 206 |
.depth = 1,
|
| 207 |
}, |
| 208 |
[PIX_FMT_MONOBLACK] = {
|
| 209 |
.name = "monob",
|
| 210 |
.nb_channels = 1,
|
| 211 |
.color_type = FF_COLOR_GRAY, |
| 212 |
.pixel_type = FF_PIXEL_PLANAR, |
| 213 |
.depth = 1,
|
| 214 |
}, |
| 215 |
|
| 216 |
/* paletted formats */
|
| 217 |
[PIX_FMT_PAL8] = {
|
| 218 |
.name = "pal8",
|
| 219 |
.nb_channels = 4, .is_alpha = 1, |
| 220 |
.color_type = FF_COLOR_RGB, |
| 221 |
.pixel_type = FF_PIXEL_PALETTE, |
| 222 |
.depth = 8,
|
| 223 |
}, |
| 224 |
[PIX_FMT_XVMC_MPEG2_MC] = {
|
| 225 |
.name = "xvmcmc",
|
| 226 |
}, |
| 227 |
[PIX_FMT_XVMC_MPEG2_IDCT] = {
|
| 228 |
.name = "xvmcidct",
|
| 229 |
}, |
| 230 |
[PIX_FMT_UYVY411] = {
|
| 231 |
.name = "uyvy411",
|
| 232 |
.nb_channels = 1,
|
| 233 |
.color_type = FF_COLOR_YUV, |
| 234 |
.pixel_type = FF_PIXEL_PACKED, |
| 235 |
.depth = 8,
|
| 236 |
.x_chroma_shift = 2, .y_chroma_shift = 0, |
| 237 |
}, |
| 238 |
}; |
| 239 |
|
| 240 |
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift) |
| 241 |
{
|
| 242 |
*h_shift = pix_fmt_info[pix_fmt].x_chroma_shift; |
| 243 |
*v_shift = pix_fmt_info[pix_fmt].y_chroma_shift; |
| 244 |
} |
| 245 |
|
| 246 |
const char *avcodec_get_pix_fmt_name(int pix_fmt) |
| 247 |
{
|
| 248 |
if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB) |
| 249 |
return "???"; |
| 250 |
else
|
| 251 |
return pix_fmt_info[pix_fmt].name;
|
| 252 |
} |
| 253 |
|
| 254 |
enum PixelFormat avcodec_get_pix_fmt(const char* name) |
| 255 |
{
|
| 256 |
int i;
|
| 257 |
|
| 258 |
for (i=0; i < PIX_FMT_NB; i++) |
| 259 |
if (!strcmp(pix_fmt_info[i].name, name))
|
| 260 |
break;
|
| 261 |
return i;
|
| 262 |
} |
| 263 |
|
| 264 |
/* Picture field are filled with 'ptr' addresses. Also return size */
|
| 265 |
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
|
| 266 |
int pix_fmt, int width, int height) |
| 267 |
{
|
| 268 |
int size, w2, h2, size2;
|
| 269 |
PixFmtInfo *pinfo; |
| 270 |
|
| 271 |
if(avcodec_check_dimensions(NULL, width, height)) |
| 272 |
goto fail;
|
| 273 |
|
| 274 |
pinfo = &pix_fmt_info[pix_fmt]; |
| 275 |
size = width * height; |
| 276 |
switch(pix_fmt) {
|
| 277 |
case PIX_FMT_YUV420P:
|
| 278 |
case PIX_FMT_YUV422P:
|
| 279 |
case PIX_FMT_YUV444P:
|
| 280 |
case PIX_FMT_YUV410P:
|
| 281 |
case PIX_FMT_YUV411P:
|
| 282 |
case PIX_FMT_YUVJ420P:
|
| 283 |
case PIX_FMT_YUVJ422P:
|
| 284 |
case PIX_FMT_YUVJ444P:
|
| 285 |
w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift; |
| 286 |
h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift; |
| 287 |
size2 = w2 * h2; |
| 288 |
picture->data[0] = ptr;
|
| 289 |
picture->data[1] = picture->data[0] + size; |
| 290 |
picture->data[2] = picture->data[1] + size2; |
| 291 |
picture->linesize[0] = width;
|
| 292 |
picture->linesize[1] = w2;
|
| 293 |
picture->linesize[2] = w2;
|
| 294 |
return size + 2 * size2; |
| 295 |
case PIX_FMT_RGB24:
|
| 296 |
case PIX_FMT_BGR24:
|
| 297 |
picture->data[0] = ptr;
|
| 298 |
picture->data[1] = NULL; |
| 299 |
picture->data[2] = NULL; |
| 300 |
picture->linesize[0] = width * 3; |
| 301 |
return size * 3; |
| 302 |
case PIX_FMT_RGBA32:
|
| 303 |
picture->data[0] = ptr;
|
| 304 |
picture->data[1] = NULL; |
| 305 |
picture->data[2] = NULL; |
| 306 |
picture->linesize[0] = width * 4; |
| 307 |
return size * 4; |
| 308 |
case PIX_FMT_RGB555:
|
| 309 |
case PIX_FMT_RGB565:
|
| 310 |
case PIX_FMT_YUV422:
|
| 311 |
picture->data[0] = ptr;
|
| 312 |
picture->data[1] = NULL; |
| 313 |
picture->data[2] = NULL; |
| 314 |
picture->linesize[0] = width * 2; |
| 315 |
return size * 2; |
| 316 |
case PIX_FMT_UYVY422:
|
| 317 |
picture->data[0] = ptr;
|
| 318 |
picture->data[1] = NULL; |
| 319 |
picture->data[2] = NULL; |
| 320 |
picture->linesize[0] = width * 2; |
| 321 |
return size * 2; |
| 322 |
case PIX_FMT_UYVY411:
|
| 323 |
picture->data[0] = ptr;
|
| 324 |
picture->data[1] = NULL; |
| 325 |
picture->data[2] = NULL; |
| 326 |
picture->linesize[0] = width + width/2; |
| 327 |
return size + size/2; |
| 328 |
case PIX_FMT_GRAY8:
|
| 329 |
picture->data[0] = ptr;
|
| 330 |
picture->data[1] = NULL; |
| 331 |
picture->data[2] = NULL; |
| 332 |
picture->linesize[0] = width;
|
| 333 |
return size;
|
| 334 |
case PIX_FMT_MONOWHITE:
|
| 335 |
case PIX_FMT_MONOBLACK:
|
| 336 |
picture->data[0] = ptr;
|
| 337 |
picture->data[1] = NULL; |
| 338 |
picture->data[2] = NULL; |
| 339 |
picture->linesize[0] = (width + 7) >> 3; |
| 340 |
return picture->linesize[0] * height; |
| 341 |
case PIX_FMT_PAL8:
|
| 342 |
size2 = (size + 3) & ~3; |
| 343 |
picture->data[0] = ptr;
|
| 344 |
picture->data[1] = ptr + size2; /* palette is stored here as 256 32 bit words */ |
| 345 |
picture->data[2] = NULL; |
| 346 |
picture->linesize[0] = width;
|
| 347 |
picture->linesize[1] = 4; |
| 348 |
return size2 + 256 * 4; |
| 349 |
default:
|
| 350 |
fail:
|
| 351 |
picture->data[0] = NULL; |
| 352 |
picture->data[1] = NULL; |
| 353 |
picture->data[2] = NULL; |
| 354 |
picture->data[3] = NULL; |
| 355 |
return -1; |
| 356 |
} |
| 357 |
} |
| 358 |
|
| 359 |
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height, |
| 360 |
unsigned char *dest, int dest_size) |
| 361 |
{
|
| 362 |
PixFmtInfo* pf = &pix_fmt_info[pix_fmt]; |
| 363 |
int i, j, w, h, data_planes;
|
| 364 |
const unsigned char* s; |
| 365 |
int size = avpicture_get_size(pix_fmt, width, height);
|
| 366 |
|
| 367 |
if (size > dest_size || size < 0) |
| 368 |
return -1; |
| 369 |
|
| 370 |
if (pf->pixel_type == FF_PIXEL_PACKED || pf->pixel_type == FF_PIXEL_PALETTE) {
|
| 371 |
if (pix_fmt == PIX_FMT_YUV422 ||
|
| 372 |
pix_fmt == PIX_FMT_UYVY422 || |
| 373 |
pix_fmt == PIX_FMT_RGB565 || |
| 374 |
pix_fmt == PIX_FMT_RGB555) |
| 375 |
w = width * 2;
|
| 376 |
else if (pix_fmt == PIX_FMT_UYVY411) |
| 377 |
w = width + width/2;
|
| 378 |
else if (pix_fmt == PIX_FMT_PAL8) |
| 379 |
w = width; |
| 380 |
else
|
| 381 |
w = width * (pf->depth * pf->nb_channels / 8);
|
| 382 |
|
| 383 |
data_planes = 1;
|
| 384 |
h = height; |
| 385 |
} else {
|
| 386 |
data_planes = pf->nb_channels; |
| 387 |
w = (width*pf->depth + 7)/8; |
| 388 |
h = height; |
| 389 |
} |
| 390 |
|
| 391 |
for (i=0; i<data_planes; i++) { |
| 392 |
if (i == 1) { |
| 393 |
w = width >> pf->x_chroma_shift; |
| 394 |
h = height >> pf->y_chroma_shift; |
| 395 |
} |
| 396 |
s = src->data[i]; |
| 397 |
for(j=0; j<h; j++) { |
| 398 |
memcpy(dest, s, w); |
| 399 |
dest += w; |
| 400 |
s += src->linesize[i]; |
| 401 |
} |
| 402 |
} |
| 403 |
|
| 404 |
if (pf->pixel_type == FF_PIXEL_PALETTE)
|
| 405 |
memcpy((unsigned char *)(((size_t)dest + 3) & ~3), src->data[1], 256 * 4); |
| 406 |
|
| 407 |
return size;
|
| 408 |
} |
| 409 |
|
| 410 |
int avpicture_get_size(int pix_fmt, int width, int height) |
| 411 |
{
|
| 412 |
AVPicture dummy_pict; |
| 413 |
return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height); |
| 414 |
} |
| 415 |
|
| 416 |
/**
|
| 417 |
* compute the loss when converting from a pixel format to another
|
| 418 |
*/
|
| 419 |
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt, |
| 420 |
int has_alpha)
|
| 421 |
{
|
| 422 |
const PixFmtInfo *pf, *ps;
|
| 423 |
int loss;
|
| 424 |
|
| 425 |
ps = &pix_fmt_info[src_pix_fmt]; |
| 426 |
pf = &pix_fmt_info[dst_pix_fmt]; |
| 427 |
|
| 428 |
/* compute loss */
|
| 429 |
loss = 0;
|
| 430 |
pf = &pix_fmt_info[dst_pix_fmt]; |
| 431 |
if (pf->depth < ps->depth ||
|
| 432 |
(dst_pix_fmt == PIX_FMT_RGB555 && src_pix_fmt == PIX_FMT_RGB565)) |
| 433 |
loss |= FF_LOSS_DEPTH; |
| 434 |
if (pf->x_chroma_shift > ps->x_chroma_shift ||
|
| 435 |
pf->y_chroma_shift > ps->y_chroma_shift) |
| 436 |
loss |= FF_LOSS_RESOLUTION; |
| 437 |
switch(pf->color_type) {
|
| 438 |
case FF_COLOR_RGB:
|
| 439 |
if (ps->color_type != FF_COLOR_RGB &&
|
| 440 |
ps->color_type != FF_COLOR_GRAY) |
| 441 |
loss |= FF_LOSS_COLORSPACE; |
| 442 |
break;
|
| 443 |
case FF_COLOR_GRAY:
|
| 444 |
if (ps->color_type != FF_COLOR_GRAY)
|
| 445 |
loss |= FF_LOSS_COLORSPACE; |
| 446 |
break;
|
| 447 |
case FF_COLOR_YUV:
|
| 448 |
if (ps->color_type != FF_COLOR_YUV)
|
| 449 |
loss |= FF_LOSS_COLORSPACE; |
| 450 |
break;
|
| 451 |
case FF_COLOR_YUV_JPEG:
|
| 452 |
if (ps->color_type != FF_COLOR_YUV_JPEG &&
|
| 453 |
ps->color_type != FF_COLOR_YUV && |
| 454 |
ps->color_type != FF_COLOR_GRAY) |
| 455 |
loss |= FF_LOSS_COLORSPACE; |
| 456 |
break;
|
| 457 |
default:
|
| 458 |
/* fail safe test */
|
| 459 |
if (ps->color_type != pf->color_type)
|
| 460 |
loss |= FF_LOSS_COLORSPACE; |
| 461 |
break;
|
| 462 |
} |
| 463 |
if (pf->color_type == FF_COLOR_GRAY &&
|
| 464 |
ps->color_type != FF_COLOR_GRAY) |
| 465 |
loss |= FF_LOSS_CHROMA; |
| 466 |
if (!pf->is_alpha && (ps->is_alpha && has_alpha))
|
| 467 |
loss |= FF_LOSS_ALPHA; |
| 468 |
if (pf->pixel_type == FF_PIXEL_PALETTE &&
|
| 469 |
(ps->pixel_type != FF_PIXEL_PALETTE && ps->color_type != FF_COLOR_GRAY)) |
| 470 |
loss |= FF_LOSS_COLORQUANT; |
| 471 |
return loss;
|
| 472 |
} |
| 473 |
|
| 474 |
static int avg_bits_per_pixel(int pix_fmt) |
| 475 |
{
|
| 476 |
int bits;
|
| 477 |
const PixFmtInfo *pf;
|
| 478 |
|
| 479 |
pf = &pix_fmt_info[pix_fmt]; |
| 480 |
switch(pf->pixel_type) {
|
| 481 |
case FF_PIXEL_PACKED:
|
| 482 |
switch(pix_fmt) {
|
| 483 |
case PIX_FMT_YUV422:
|
| 484 |
case PIX_FMT_UYVY422:
|
| 485 |
case PIX_FMT_RGB565:
|
| 486 |
case PIX_FMT_RGB555:
|
| 487 |
bits = 16;
|
| 488 |
break;
|
| 489 |
case PIX_FMT_UYVY411:
|
| 490 |
bits = 12;
|
| 491 |
break;
|
| 492 |
default:
|
| 493 |
bits = pf->depth * pf->nb_channels; |
| 494 |
break;
|
| 495 |
} |
| 496 |
break;
|
| 497 |
case FF_PIXEL_PLANAR:
|
| 498 |
if (pf->x_chroma_shift == 0 && pf->y_chroma_shift == 0) { |
| 499 |
bits = pf->depth * pf->nb_channels; |
| 500 |
} else {
|
| 501 |
bits = pf->depth + ((2 * pf->depth) >>
|
| 502 |
(pf->x_chroma_shift + pf->y_chroma_shift)); |
| 503 |
} |
| 504 |
break;
|
| 505 |
case FF_PIXEL_PALETTE:
|
| 506 |
bits = 8;
|
| 507 |
break;
|
| 508 |
default:
|
| 509 |
bits = -1;
|
| 510 |
break;
|
| 511 |
} |
| 512 |
return bits;
|
| 513 |
} |
| 514 |
|
| 515 |
static int avcodec_find_best_pix_fmt1(int pix_fmt_mask, |
| 516 |
int src_pix_fmt,
|
| 517 |
int has_alpha,
|
| 518 |
int loss_mask)
|
| 519 |
{
|
| 520 |
int dist, i, loss, min_dist, dst_pix_fmt;
|
| 521 |
|
| 522 |
/* find exact color match with smallest size */
|
| 523 |
dst_pix_fmt = -1;
|
| 524 |
min_dist = 0x7fffffff;
|
| 525 |
for(i = 0;i < PIX_FMT_NB; i++) { |
| 526 |
if (pix_fmt_mask & (1 << i)) { |
| 527 |
loss = avcodec_get_pix_fmt_loss(i, src_pix_fmt, has_alpha) & loss_mask; |
| 528 |
if (loss == 0) { |
| 529 |
dist = avg_bits_per_pixel(i); |
| 530 |
if (dist < min_dist) {
|
| 531 |
min_dist = dist; |
| 532 |
dst_pix_fmt = i; |
| 533 |
} |
| 534 |
} |
| 535 |
} |
| 536 |
} |
| 537 |
return dst_pix_fmt;
|
| 538 |
} |
| 539 |
|
| 540 |
/**
|
| 541 |
* find best pixel format to convert to. Return -1 if none found
|
| 542 |
*/
|
| 543 |
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt, |
| 544 |
int has_alpha, int *loss_ptr) |
| 545 |
{
|
| 546 |
int dst_pix_fmt, loss_mask, i;
|
| 547 |
static const int loss_mask_order[] = { |
| 548 |
~0, /* no loss first */ |
| 549 |
~FF_LOSS_ALPHA, |
| 550 |
~FF_LOSS_RESOLUTION, |
| 551 |
~(FF_LOSS_COLORSPACE | FF_LOSS_RESOLUTION), |
| 552 |
~FF_LOSS_COLORQUANT, |
| 553 |
~FF_LOSS_DEPTH, |
| 554 |
0,
|
| 555 |
}; |
| 556 |
|
| 557 |
/* try with successive loss */
|
| 558 |
i = 0;
|
| 559 |
for(;;) {
|
| 560 |
loss_mask = loss_mask_order[i++]; |
| 561 |
dst_pix_fmt = avcodec_find_best_pix_fmt1(pix_fmt_mask, src_pix_fmt, |
| 562 |
has_alpha, loss_mask); |
| 563 |
if (dst_pix_fmt >= 0) |
| 564 |
goto found;
|
| 565 |
if (loss_mask == 0) |
| 566 |
break;
|
| 567 |
} |
| 568 |
return -1; |
| 569 |
found:
|
| 570 |
if (loss_ptr)
|
| 571 |
*loss_ptr = avcodec_get_pix_fmt_loss(dst_pix_fmt, src_pix_fmt, has_alpha); |
| 572 |
return dst_pix_fmt;
|
| 573 |
} |
| 574 |
|
| 575 |
static void img_copy_plane(uint8_t *dst, int dst_wrap, |
| 576 |
const uint8_t *src, int src_wrap, |
| 577 |
int width, int height) |
| 578 |
{
|
| 579 |
if((!dst) || (!src))
|
| 580 |
return;
|
| 581 |
for(;height > 0; height--) { |
| 582 |
memcpy(dst, src, width); |
| 583 |
dst += dst_wrap; |
| 584 |
src += src_wrap; |
| 585 |
} |
| 586 |
} |
| 587 |
|
| 588 |
/**
|
| 589 |
* Copy image 'src' to 'dst'.
|
| 590 |
*/
|
| 591 |
void img_copy(AVPicture *dst, const AVPicture *src, |
| 592 |
int pix_fmt, int width, int height) |
| 593 |
{
|
| 594 |
int bwidth, bits, i;
|
| 595 |
PixFmtInfo *pf = &pix_fmt_info[pix_fmt]; |
| 596 |
|
| 597 |
pf = &pix_fmt_info[pix_fmt]; |
| 598 |
switch(pf->pixel_type) {
|
| 599 |
case FF_PIXEL_PACKED:
|
| 600 |
switch(pix_fmt) {
|
| 601 |
case PIX_FMT_YUV422:
|
| 602 |
case PIX_FMT_UYVY422:
|
| 603 |
case PIX_FMT_RGB565:
|
| 604 |
case PIX_FMT_RGB555:
|
| 605 |
bits = 16;
|
| 606 |
break;
|
| 607 |
case PIX_FMT_UYVY411:
|
| 608 |
bits = 12;
|
| 609 |
break;
|
| 610 |
default:
|
| 611 |
bits = pf->depth * pf->nb_channels; |
| 612 |
break;
|
| 613 |
} |
| 614 |
bwidth = (width * bits + 7) >> 3; |
| 615 |
img_copy_plane(dst->data[0], dst->linesize[0], |
| 616 |
src->data[0], src->linesize[0], |
| 617 |
bwidth, height); |
| 618 |
break;
|
| 619 |
case FF_PIXEL_PLANAR:
|
| 620 |
for(i = 0; i < pf->nb_channels; i++) { |
| 621 |
int w, h;
|
| 622 |
w = width; |
| 623 |
h = height; |
| 624 |
if (i == 1 || i == 2) { |
| 625 |
w >>= pf->x_chroma_shift; |
| 626 |
h >>= pf->y_chroma_shift; |
| 627 |
} |
| 628 |
bwidth = (w * pf->depth + 7) >> 3; |
| 629 |
img_copy_plane(dst->data[i], dst->linesize[i], |
| 630 |
src->data[i], src->linesize[i], |
| 631 |
bwidth, h); |
| 632 |
} |
| 633 |
break;
|
| 634 |
case FF_PIXEL_PALETTE:
|
| 635 |
img_copy_plane(dst->data[0], dst->linesize[0], |
| 636 |
src->data[0], src->linesize[0], |
| 637 |
width, height); |
| 638 |
/* copy the palette */
|
| 639 |
img_copy_plane(dst->data[1], dst->linesize[1], |
| 640 |
src->data[1], src->linesize[1], |
| 641 |
4, 256); |
| 642 |
break;
|
| 643 |
} |
| 644 |
} |
| 645 |
|
| 646 |
/* XXX: totally non optimized */
|
| 647 |
|
| 648 |
static void yuv422_to_yuv420p(AVPicture *dst, const AVPicture *src, |
| 649 |
int width, int height) |
| 650 |
{
|
| 651 |
const uint8_t *p, *p1;
|
| 652 |
uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1; |
| 653 |
int w;
|
| 654 |
|
| 655 |
p1 = src->data[0];
|
| 656 |
lum1 = dst->data[0];
|
| 657 |
cb1 = dst->data[1];
|
| 658 |
cr1 = dst->data[2];
|
| 659 |
|
| 660 |
for(;height >= 1; height -= 2) { |
| 661 |
p = p1; |
| 662 |
lum = lum1; |
| 663 |
cb = cb1; |
| 664 |
cr = cr1; |
| 665 |
for(w = width; w >= 2; w -= 2) { |
| 666 |
lum[0] = p[0]; |
| 667 |
cb[0] = p[1]; |
| 668 |
lum[1] = p[2]; |
| 669 |
cr[0] = p[3]; |
| 670 |
p += 4;
|
| 671 |
lum += 2;
|
| 672 |
cb++; |
| 673 |
cr++; |
| 674 |
} |
| 675 |
if (w) {
|
| 676 |
lum[0] = p[0]; |
| 677 |
cb[0] = p[1]; |
| 678 |
cr[0] = p[3]; |
| 679 |
cb++; |
| 680 |
cr++; |
| 681 |
} |
| 682 |
p1 += src->linesize[0];
|
| 683 |
lum1 += dst->linesize[0];
|
| 684 |
if (height>1) { |
| 685 |
p = p1; |
| 686 |
lum = lum1; |
| 687 |
for(w = width; w >= 2; w -= 2) { |
| 688 |
lum[0] = p[0]; |
| 689 |
lum[1] = p[2]; |
| 690 |
p += 4;
|
| 691 |
lum += 2;
|
| 692 |
} |
| 693 |
if (w) {
|
| 694 |
lum[0] = p[0]; |
| 695 |
} |
| 696 |
p1 += src->linesize[0];
|
| 697 |
lum1 += dst->linesize[0];
|
| 698 |
} |
| 699 |
cb1 += dst->linesize[1];
|
| 700 |
cr1 += dst->linesize[2];
|
| 701 |
} |
| 702 |
} |
| 703 |
|
| 704 |
static void uyvy422_to_yuv420p(AVPicture *dst, const AVPicture *src, |
| 705 |
int width, int height) |
| 706 |
{
|
| 707 |
const uint8_t *p, *p1;
|
| 708 |
uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1; |
| 709 |
int w;
|
| 710 |
|
| 711 |
p1 = src->data[0];
|
| 712 |
|
| 713 |
lum1 = dst->data[0];
|
| 714 |
cb1 = dst->data[1];
|
| 715 |
cr1 = dst->data[2];
|
| 716 |
|
| 717 |
for(;height >= 1; height -= 2) { |
| 718 |
p = p1; |
| 719 |
lum = lum1; |
| 720 |
cb = cb1; |
| 721 |
cr = cr1; |
| 722 |
for(w = width; w >= 2; w -= 2) { |
| 723 |
lum[0] = p[1]; |
| 724 |
cb[0] = p[0]; |
| 725 |
lum[1] = p[3]; |
| 726 |
cr[0] = p[2]; |
| 727 |
p += 4;
|
| 728 |
lum += 2;
|
| 729 |
cb++; |
| 730 |
cr++; |
| 731 |
} |
| 732 |
if (w) {
|
| 733 |
lum[0] = p[1]; |
| 734 |
cb[0] = p[0]; |
| 735 |
cr[0] = p[2]; |
| 736 |
cb++; |
| 737 |
cr++; |
| 738 |
} |
| 739 |
p1 += src->linesize[0];
|
| 740 |
lum1 += dst->linesize[0];
|
| 741 |
if (height>1) { |
| 742 |
p = p1; |
| 743 |
lum = lum1; |
| 744 |
for(w = width; w >= 2; w -= 2) { |
| 745 |
lum[0] = p[1]; |
| 746 |
lum[1] = p[3]; |
| 747 |
p += 4;
|
| 748 |
lum += 2;
|
| 749 |
} |
| 750 |
if (w) {
|
| 751 |
lum[0] = p[1]; |
| 752 |
} |
| 753 |
p1 += src->linesize[0];
|
| 754 |
lum1 += dst->linesize[0];
|
| 755 |
} |
| 756 |
cb1 += dst->linesize[1];
|
| 757 |
cr1 += dst->linesize[2];
|
| 758 |
} |
| 759 |
} |
| 760 |
|
| 761 |
|
| 762 |
static void uyvy422_to_yuv422p(AVPicture *dst, const AVPicture *src, |
| 763 |
int width, int height) |
| 764 |
{
|
| 765 |
const uint8_t *p, *p1;
|
| 766 |
uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1; |
| 767 |
int w;
|
| 768 |
|
| 769 |
p1 = src->data[0];
|
| 770 |
lum1 = dst->data[0];
|
| 771 |
cb1 = dst->data[1];
|
| 772 |
cr1 = dst->data[2];
|
| 773 |
for(;height > 0; height--) { |
| 774 |
p = p1; |
| 775 |
lum = lum1; |
| 776 |
cb = cb1; |
| 777 |
cr = cr1; |
| 778 |
for(w = width; w >= 2; w -= 2) { |
| 779 |
lum[0] = p[1]; |
| 780 |
cb[0] = p[0]; |
| 781 |
lum[1] = p[3]; |
| 782 |
cr[0] = p[2]; |
| 783 |
p += 4;
|
| 784 |
lum += 2;
|
| 785 |
cb++; |
| 786 |
cr++; |
| 787 |
} |
| 788 |
p1 += src->linesize[0];
|
| 789 |
lum1 += dst->linesize[0];
|
| 790 |
cb1 += dst->linesize[1];
|
| 791 |
cr1 += dst->linesize[2];
|
| 792 |
} |
| 793 |
} |
| 794 |
|
| 795 |
|
| 796 |
static void yuv422_to_yuv422p(AVPicture *dst, const AVPicture *src, |
| 797 |
int width, int height) |
| 798 |
{
|
| 799 |
const uint8_t *p, *p1;
|
| 800 |
uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1; |
| 801 |
int w;
|
| 802 |
|
| 803 |
p1 = src->data[0];
|
| 804 |
lum1 = dst->data[0];
|
| 805 |
cb1 = dst->data[1];
|
| 806 |
cr1 = dst->data[2];
|
| 807 |
for(;height > 0; height--) { |
| 808 |
p = p1; |
| 809 |
lum = lum1; |
| 810 |
cb = cb1; |
| 811 |
cr = cr1; |
| 812 |
for(w = width; w >= 2; w -= 2) { |
| 813 |
lum[0] = p[0]; |
| 814 |
cb[0] = p[1]; |
| 815 |
lum[1] = p[2]; |
| 816 |
cr[0] = p[3]; |
| 817 |
p += 4;
|
| 818 |
lum += 2;
|
| 819 |
cb++; |
| 820 |
cr++; |
| 821 |
} |
| 822 |
p1 += src->linesize[0];
|
| 823 |
lum1 += dst->linesize[0];
|
| 824 |
cb1 += dst->linesize[1];
|
| 825 |
cr1 += dst->linesize[2];
|
| 826 |
} |
| 827 |
} |
| 828 |
|
| 829 |
static void yuv422p_to_yuv422(AVPicture *dst, const AVPicture *src, |
| 830 |
int width, int height) |
| 831 |
{
|
| 832 |
uint8_t *p, *p1; |
| 833 |
const uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
|
| 834 |
int w;
|
| 835 |
|
| 836 |
p1 = dst->data[0];
|
| 837 |
lum1 = src->data[0];
|
| 838 |
cb1 = src->data[1];
|
| 839 |
cr1 = src->data[2];
|
| 840 |
for(;height > 0; height--) { |
| 841 |
p = p1; |
| 842 |
lum = lum1; |
| 843 |
cb = cb1; |
| 844 |
cr = cr1; |
| 845 |
for(w = width; w >= 2; w -= 2) { |
| 846 |
p[0] = lum[0]; |
| 847 |
p[1] = cb[0]; |
| 848 |
p[2] = lum[1]; |
| 849 |
p[3] = cr[0]; |
| 850 |
p += 4;
|
| 851 |
lum += 2;
|
| 852 |
cb++; |
| 853 |
cr++; |
| 854 |
} |
| 855 |
p1 += dst->linesize[0];
|
| 856 |
lum1 += src->linesize[0];
|
| 857 |
cb1 += src->linesize[1];
|
| 858 |
cr1 += src->linesize[2];
|
| 859 |
} |
| 860 |
} |
| 861 |
|
| 862 |
static void yuv422p_to_uyvy422(AVPicture *dst, const AVPicture *src, |
| 863 |
int width, int height) |
| 864 |
{
|
| 865 |
uint8_t *p, *p1; |
| 866 |
const uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
|
| 867 |
int w;
|
| 868 |
|
| 869 |
p1 = dst->data[0];
|
| 870 |
lum1 = src->data[0];
|
| 871 |
cb1 = src->data[1];
|
| 872 |
cr1 = src->data[2];
|
| 873 |
for(;height > 0; height--) { |
| 874 |
p = p1; |
| 875 |
lum = lum1; |
| 876 |
cb = cb1; |
| 877 |
cr = cr1; |
| 878 |
for(w = width; w >= 2; w -= 2) { |
| 879 |
p[1] = lum[0]; |
| 880 |
p[0] = cb[0]; |
| 881 |
p[3] = lum[1]; |
| 882 |
p[2] = cr[0]; |
| 883 |
p += 4;
|
| 884 |
lum += 2;
|
| 885 |
cb++; |
| 886 |
cr++; |
| 887 |
} |
| 888 |
p1 += dst->linesize[0];
|
| 889 |
lum1 += src->linesize[0];
|
| 890 |
cb1 += src->linesize[1];
|
| 891 |
cr1 += src->linesize[2];
|
| 892 |
} |
| 893 |
} |
| 894 |
|
| 895 |
static void uyvy411_to_yuv411p(AVPicture *dst, const AVPicture *src, |
| 896 |
int width, int height) |
| 897 |
{
|
| 898 |
const uint8_t *p, *p1;
|
| 899 |
uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1; |
| 900 |
int w;
|
| 901 |
|
| 902 |
p1 = src->data[0];
|
| 903 |
lum1 = dst->data[0];
|
| 904 |
cb1 = dst->data[1];
|
| 905 |
cr1 = dst->data[2];
|
| 906 |
for(;height > 0; height--) { |
| 907 |
p = p1; |
| 908 |
lum = lum1; |
| 909 |
cb = cb1; |
| 910 |
cr = cr1; |
| 911 |
for(w = width; w >= 4; w -= 4) { |
| 912 |
cb[0] = p[0]; |
| 913 |
lum[0] = p[1]; |
| 914 |
lum[1] = p[2]; |
| 915 |
cr[0] = p[3]; |
| 916 |
lum[2] = p[4]; |
| 917 |
lum[3] = p[5]; |
| 918 |
p += 6;
|
| 919 |
lum += 4;
|
| 920 |
cb++; |
| 921 |
cr++; |
| 922 |
} |
| 923 |
p1 += src->linesize[0];
|
| 924 |
lum1 += dst->linesize[0];
|
| 925 |
cb1 += dst->linesize[1];
|
| 926 |
cr1 += dst->linesize[2];
|
| 927 |
} |
| 928 |
} |
| 929 |
|
| 930 |
|
| 931 |
static void yuv420p_to_yuv422(AVPicture *dst, const AVPicture *src, |
| 932 |
int width, int height) |
| 933 |
{
|
| 934 |
int w, h;
|
| 935 |
uint8_t *line1, *line2, *linesrc = dst->data[0];
|
| 936 |
uint8_t *lum1, *lum2, *lumsrc = src->data[0];
|
| 937 |
uint8_t *cb1, *cb2 = src->data[1];
|
| 938 |
uint8_t *cr1, *cr2 = src->data[2];
|
| 939 |
|
| 940 |
for(h = height / 2; h--;) { |
| 941 |
line1 = linesrc; |
| 942 |
line2 = linesrc + dst->linesize[0];
|
| 943 |
|
| 944 |
lum1 = lumsrc; |
| 945 |
lum2 = lumsrc + src->linesize[0];
|
| 946 |
|
| 947 |
cb1 = cb2; |
| 948 |
cr1 = cr2; |
| 949 |
|
| 950 |
for(w = width / 2; w--;) { |
| 951 |
*line1++ = *lum1++; *line2++ = *lum2++; |
| 952 |
*line1++ = *line2++ = *cb1++; |
| 953 |
*line1++ = *lum1++; *line2++ = *lum2++; |
| 954 |
*line1++ = *line2++ = *cr1++; |
| 955 |
} |
| 956 |
|
| 957 |
linesrc += dst->linesize[0] * 2; |
| 958 |
lumsrc += src->linesize[0] * 2; |
| 959 |
cb2 += src->linesize[1];
|
| 960 |
cr2 += src->linesize[2];
|
| 961 |
} |
| 962 |
} |
| 963 |
|
| 964 |
static void yuv420p_to_uyvy422(AVPicture *dst, const AVPicture *src, |
| 965 |
int width, int height) |
| 966 |
{
|
| 967 |
int w, h;
|
| 968 |
uint8_t *line1, *line2, *linesrc = dst->data[0];
|
| 969 |
uint8_t *lum1, *lum2, *lumsrc = src->data[0];
|
| 970 |
uint8_t *cb1, *cb2 = src->data[1];
|
| 971 |
uint8_t *cr1, *cr2 = src->data[2];
|
| 972 |
|
| 973 |
for(h = height / 2; h--;) { |
| 974 |
line1 = linesrc; |
| 975 |
line2 = linesrc + dst->linesize[0];
|
| 976 |
|
| 977 |
lum1 = lumsrc; |
| 978 |
lum2 = lumsrc + src->linesize[0];
|
| 979 |
|
| 980 |
cb1 = cb2; |
| 981 |
cr1 = cr2; |
| 982 |
|
| 983 |
for(w = width / 2; w--;) { |
| 984 |
*line1++ = *line2++ = *cb1++; |
| 985 |
*line1++ = *lum1++; *line2++ = *lum2++; |
| 986 |
*line1++ = *line2++ = *cr1++; |
| 987 |
*line1++ = *lum1++; *line2++ = *lum2++; |
| 988 |
} |
| 989 |
|
| 990 |
linesrc += dst->linesize[0] * 2; |
| 991 |
lumsrc += src->linesize[0] * 2; |
| 992 |
cb2 += src->linesize[1];
|
| 993 |
cr2 += src->linesize[2];
|
| 994 |
} |
| 995 |
} |
| 996 |
|
| 997 |
#define SCALEBITS 10 |
| 998 |
#define ONE_HALF (1 << (SCALEBITS - 1)) |
| 999 |
#define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5)) |
| 1000 |
|
| 1001 |
#define YUV_TO_RGB1_CCIR(cb1, cr1)\
|
| 1002 |
{\
|
| 1003 |
cb = (cb1) - 128;\
|
| 1004 |
cr = (cr1) - 128;\
|
| 1005 |
r_add = FIX(1.40200*255.0/224.0) * cr + ONE_HALF;\ |
| 1006 |
g_add = - FIX(0.34414*255.0/224.0) * cb - FIX(0.71414*255.0/224.0) * cr + \ |
| 1007 |
ONE_HALF;\ |
| 1008 |
b_add = FIX(1.77200*255.0/224.0) * cb + ONE_HALF;\ |
| 1009 |
} |
| 1010 |
|
| 1011 |
#define YUV_TO_RGB2_CCIR(r, g, b, y1)\
|
| 1012 |
{\
|
| 1013 |
y = ((y1) - 16) * FIX(255.0/219.0);\ |
| 1014 |
r = cm[(y + r_add) >> SCALEBITS];\ |
| 1015 |
g = cm[(y + g_add) >> SCALEBITS];\ |
| 1016 |
b = cm[(y + b_add) >> SCALEBITS];\ |
| 1017 |
} |
| 1018 |
|
| 1019 |
#define YUV_TO_RGB1(cb1, cr1)\
|
| 1020 |
{\
|
| 1021 |
cb = (cb1) - 128;\
|
| 1022 |
cr = (cr1) - 128;\
|
| 1023 |
r_add = FIX(1.40200) * cr + ONE_HALF;\ |
| 1024 |
g_add = - FIX(0.34414) * cb - FIX(0.71414) * cr + ONE_HALF;\ |
| 1025 |
b_add = FIX(1.77200) * cb + ONE_HALF;\ |
| 1026 |
} |
| 1027 |
|
| 1028 |
#define YUV_TO_RGB2(r, g, b, y1)\
|
| 1029 |
{\
|
| 1030 |
y = (y1) << SCALEBITS;\ |
| 1031 |
r = cm[(y + r_add) >> SCALEBITS];\ |
| 1032 |
g = cm[(y + g_add) >> SCALEBITS];\ |
| 1033 |
b = cm[(y + b_add) >> SCALEBITS];\ |
| 1034 |
} |
| 1035 |
|
| 1036 |
#define Y_CCIR_TO_JPEG(y)\
|
| 1037 |
cm[((y) * FIX(255.0/219.0) + (ONE_HALF - 16 * FIX(255.0/219.0))) >> SCALEBITS] |
| 1038 |
|
| 1039 |
#define Y_JPEG_TO_CCIR(y)\
|
| 1040 |
(((y) * FIX(219.0/255.0) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS) |
| 1041 |
|
| 1042 |
#define C_CCIR_TO_JPEG(y)\
|
| 1043 |
cm[(((y) - 128) * FIX(127.0/112.0) + (ONE_HALF + (128 << SCALEBITS))) >> SCALEBITS] |
| 1044 |
|
| 1045 |
/* NOTE: the clamp is really necessary! */
|
| 1046 |
static inline int C_JPEG_TO_CCIR(int y) { |
| 1047 |
y = (((y - 128) * FIX(112.0/127.0) + (ONE_HALF + (128 << SCALEBITS))) >> SCALEBITS); |
| 1048 |
if (y < 16) |
| 1049 |
y = 16;
|
| 1050 |
return y;
|
| 1051 |
} |
| 1052 |
|
| 1053 |
|
| 1054 |
#define RGB_TO_Y(r, g, b) \
|
| 1055 |
((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \ |
| 1056 |
FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS) |
| 1057 |
|
| 1058 |
#define RGB_TO_U(r1, g1, b1, shift)\
|
| 1059 |
(((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \ |
| 1060 |
FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) |
| 1061 |
|
| 1062 |
#define RGB_TO_V(r1, g1, b1, shift)\
|
| 1063 |
(((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \ |
| 1064 |
FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) |
| 1065 |
|
| 1066 |
#define RGB_TO_Y_CCIR(r, g, b) \
|
| 1067 |
((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \ |
| 1068 |
FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS) |
| 1069 |
|
| 1070 |
#define RGB_TO_U_CCIR(r1, g1, b1, shift)\
|
| 1071 |
(((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \ |
| 1072 |
FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) |
| 1073 |
|
| 1074 |
#define RGB_TO_V_CCIR(r1, g1, b1, shift)\
|
| 1075 |
(((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \ |
| 1076 |
FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) |
| 1077 |
|
| 1078 |
static uint8_t y_ccir_to_jpeg[256]; |
| 1079 |
static uint8_t y_jpeg_to_ccir[256]; |
| 1080 |
static uint8_t c_ccir_to_jpeg[256]; |
| 1081 |
static uint8_t c_jpeg_to_ccir[256]; |
| 1082 |
|
| 1083 |
/* init various conversion tables */
|
| 1084 |
static void img_convert_init(void) |
| 1085 |
{
|
| 1086 |
int i;
|
| 1087 |
uint8_t *cm = cropTbl + MAX_NEG_CROP; |
| 1088 |
|
| 1089 |
for(i = 0;i < 256; i++) { |
| 1090 |
y_ccir_to_jpeg[i] = Y_CCIR_TO_JPEG(i); |
| 1091 |
y_jpeg_to_ccir[i] = Y_JPEG_TO_CCIR(i); |
| 1092 |
c_ccir_to_jpeg[i] = C_CCIR_TO_JPEG(i); |
| 1093 |
c_jpeg_to_ccir[i] = C_JPEG_TO_CCIR(i); |
| 1094 |
} |
| 1095 |
} |
| 1096 |
|
| 1097 |
/* apply to each pixel the given table */
|
| 1098 |
static void img_apply_table(uint8_t *dst, int dst_wrap, |
| 1099 |
const uint8_t *src, int src_wrap, |
| 1100 |
int width, int height, const uint8_t *table1) |
| 1101 |
{
|
| 1102 |
int n;
|
| 1103 |
const uint8_t *s;
|
| 1104 |
uint8_t *d; |
| 1105 |
const uint8_t *table;
|
| 1106 |
|
| 1107 |
table = table1; |
| 1108 |
for(;height > 0; height--) { |
| 1109 |
s = src; |
| 1110 |
d = dst; |
| 1111 |
n = width; |
| 1112 |
while (n >= 4) { |
| 1113 |
d[0] = table[s[0]]; |
| 1114 |
d[1] = table[s[1]]; |
| 1115 |
d[2] = table[s[2]]; |
| 1116 |
d[3] = table[s[3]]; |
| 1117 |
d += 4;
|
| 1118 |
s += 4;
|
| 1119 |
n -= 4;
|
| 1120 |
} |
| 1121 |
while (n > 0) { |
| 1122 |
d[0] = table[s[0]]; |
| 1123 |
d++; |
| 1124 |
s++; |
| 1125 |
n--; |
| 1126 |
} |
| 1127 |
dst += dst_wrap; |
| 1128 |
src += src_wrap; |
| 1129 |
} |
| 1130 |
} |
| 1131 |
|
| 1132 |
/* XXX: use generic filter ? */
|
| 1133 |
/* XXX: in most cases, the sampling position is incorrect */
|
| 1134 |
|
| 1135 |
/* 4x1 -> 1x1 */
|
| 1136 |
static void shrink41(uint8_t *dst, int dst_wrap, |
| 1137 |
const uint8_t *src, int src_wrap, |
| 1138 |
int width, int height) |
| 1139 |
{
|
| 1140 |
int w;
|
| 1141 |
const uint8_t *s;
|
| 1142 |
uint8_t *d; |
| 1143 |
|
| 1144 |
for(;height > 0; height--) { |
| 1145 |
s = src; |
| 1146 |
d = dst; |
| 1147 |
for(w = width;w > 0; w--) { |
| 1148 |
d[0] = (s[0] + s[1] + s[2] + s[3] + 2) >> 2; |
| 1149 |
s += 4;
|
| 1150 |
d++; |
| 1151 |
} |
| 1152 |
src += src_wrap; |
| 1153 |
dst += dst_wrap; |
| 1154 |
} |
| 1155 |
} |
| 1156 |
|
| 1157 |
/* 2x1 -> 1x1 */
|
| 1158 |
static void shrink21(uint8_t *dst, int dst_wrap, |
| 1159 |
const uint8_t *src, int src_wrap, |
| 1160 |
int width, int height) |
| 1161 |
{
|
| 1162 |
int w;
|
| 1163 |
const uint8_t *s;
|
| 1164 |
uint8_t *d; |
| 1165 |
|
| 1166 |
for(;height > 0; height--) { |
| 1167 |
s = src; |
| 1168 |
d = dst; |
| 1169 |
for(w = width;w > 0; w--) { |
| 1170 |
d[0] = (s[0] + s[1]) >> 1; |
| 1171 |
s += 2;
|
| 1172 |
d++; |
| 1173 |
} |
| 1174 |
src += src_wrap; |
| 1175 |
dst += dst_wrap; |
| 1176 |
} |
| 1177 |
} |
| 1178 |
|
| 1179 |
/* 1x2 -> 1x1 */
|
| 1180 |
static void shrink12(uint8_t *dst, int dst_wrap, |
| 1181 |
const uint8_t *src, int src_wrap, |
| 1182 |
int width, int height) |
| 1183 |
{
|
| 1184 |
int w;
|
| 1185 |
uint8_t *d; |
| 1186 |
const uint8_t *s1, *s2;
|
| 1187 |
|
| 1188 |
for(;height > 0; height--) { |
| 1189 |
s1 = src; |
| 1190 |
s2 = s1 + src_wrap; |
| 1191 |
d = dst; |
| 1192 |
for(w = width;w >= 4; w-=4) { |
| 1193 |
d[0] = (s1[0] + s2[0]) >> 1; |
| 1194 |
d[1] = (s1[1] + s2[1]) >> 1; |
| 1195 |
d[2] = (s1[2] + s2[2]) >> 1; |
| 1196 |
d[3] = (s1[3] + s2[3]) >> 1; |
| 1197 |
s1 += 4;
|
| 1198 |
s2 += 4;
|
| 1199 |
d += 4;
|
| 1200 |
} |
| 1201 |
for(;w > 0; w--) { |
| 1202 |
d[0] = (s1[0] + s2[0]) >> 1; |
| 1203 |
s1++; |
| 1204 |
s2++; |
| 1205 |
d++; |
| 1206 |
} |
| 1207 |
src += 2 * src_wrap;
|
| 1208 |
dst += dst_wrap; |
| 1209 |
} |
| 1210 |
} |
| 1211 |
|
| 1212 |
/* 2x2 -> 1x1 */
|
| 1213 |
static void shrink22(uint8_t *dst, int dst_wrap, |
| 1214 |
const uint8_t *src, int src_wrap, |
| 1215 |
int width, int height) |
| 1216 |
{
|
| 1217 |
int w;
|
| 1218 |
const uint8_t *s1, *s2;
|
| 1219 |
uint8_t *d; |
| 1220 |
|
| 1221 |
for(;height > 0; height--) { |
| 1222 |
s1 = src; |
| 1223 |
s2 = s1 + src_wrap; |
| 1224 |
d = dst; |
| 1225 |
for(w = width;w >= 4; w-=4) { |
| 1226 |
d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2; |
| 1227 |
d[1] = (s1[2] + s1[3] + s2[2] + s2[3] + 2) >> 2; |
| 1228 |
d[2] = (s1[4] + s1[5] + s2[4] + s2[5] + 2) >> 2; |
| 1229 |
d[3] = (s1[6] + s1[7] + s2[6] + s2[7] + 2) >> 2; |
| 1230 |
s1 += 8;
|
| 1231 |
s2 += 8;
|
| 1232 |
d += 4;
|
| 1233 |
} |
| 1234 |
for(;w > 0; w--) { |
| 1235 |
d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2; |
| 1236 |
s1 += 2;
|
| 1237 |
s2 += 2;
|
| 1238 |
d++; |
| 1239 |
} |
| 1240 |
src += 2 * src_wrap;
|
| 1241 |
dst += dst_wrap; |
| 1242 |
} |
| 1243 |
} |
| 1244 |
|
| 1245 |
/* 4x4 -> 1x1 */
|
| 1246 |
static void shrink44(uint8_t *dst, int dst_wrap, |
| 1247 |
const uint8_t *src, int src_wrap, |
| 1248 |
int width, int height) |
| 1249 |
{
|
| 1250 |
int w;
|
| 1251 |
const uint8_t *s1, *s2, *s3, *s4;
|
| 1252 |
uint8_t *d; |
| 1253 |
|
| 1254 |
for(;height > 0; height--) { |
| 1255 |
s1 = src; |
| 1256 |
s2 = s1 + src_wrap; |
| 1257 |
s3 = s2 + src_wrap; |
| 1258 |
s4 = s3 + src_wrap; |
| 1259 |
d = dst; |
| 1260 |
for(w = width;w > 0; w--) { |
| 1261 |
d[0] = (s1[0] + s1[1] + s1[2] + s1[3] + |
| 1262 |
s2[0] + s2[1] + s2[2] + s2[3] + |
| 1263 |
s3[0] + s3[1] + s3[2] + s3[3] + |
| 1264 |
s4[0] + s4[1] + s4[2] + s4[3] + 8) >> 4; |
| 1265 |
s1 += 4;
|
| 1266 |
s2 += 4;
|
| 1267 |
s3 += 4;
|
| 1268 |
s4 += 4;
|
| 1269 |
d++; |
| 1270 |
} |
| 1271 |
src += 4 * src_wrap;
|
| 1272 |
dst += dst_wrap; |
| 1273 |
} |
| 1274 |
} |
| 1275 |
|
| 1276 |
static void grow21_line(uint8_t *dst, const uint8_t *src, |
| 1277 |
int width)
|
| 1278 |
{
|
| 1279 |
int w;
|
| 1280 |
const uint8_t *s1;
|
| 1281 |
uint8_t *d; |
| 1282 |
|
| 1283 |
s1 = src; |
| 1284 |
d = dst; |
| 1285 |
for(w = width;w >= 4; w-=4) { |
| 1286 |
d[1] = d[0] = s1[0]; |
| 1287 |
d[3] = d[2] = s1[1]; |
| 1288 |
s1 += 2;
|
| 1289 |
d += 4;
|
| 1290 |
} |
| 1291 |
for(;w >= 2; w -= 2) { |
| 1292 |
d[1] = d[0] = s1[0]; |
| 1293 |
s1 ++; |
| 1294 |
d += 2;
|
| 1295 |
} |
| 1296 |
/* only needed if width is not a multiple of two */
|
| 1297 |
/* XXX: veryfy that */
|
| 1298 |
if (w) {
|
| 1299 |
d[0] = s1[0]; |
| 1300 |
} |
| 1301 |
} |
| 1302 |
|
| 1303 |
static void grow41_line(uint8_t *dst, const uint8_t *src, |
| 1304 |
int width)
|
| 1305 |
{
|
| 1306 |
int w, v;
|
| 1307 |
const uint8_t *s1;
|
| 1308 |
uint8_t *d; |
| 1309 |
|
| 1310 |
s1 = src; |
| 1311 |
d = dst; |
| 1312 |
for(w = width;w >= 4; w-=4) { |
| 1313 |
v = s1[0];
|
| 1314 |
d[0] = v;
|
| 1315 |
d[1] = v;
|
| 1316 |
d[2] = v;
|
| 1317 |
d[3] = v;
|
| 1318 |
s1 ++; |
| 1319 |
d += 4;
|
| 1320 |
} |
| 1321 |
} |
| 1322 |
|
| 1323 |
/* 1x1 -> 2x1 */
|
| 1324 |
static void grow21(uint8_t *dst, int dst_wrap, |
| 1325 |
const uint8_t *src, int src_wrap, |
| 1326 |
int width, int height) |
| 1327 |
{
|
| 1328 |
for(;height > 0; height--) { |
| 1329 |
grow21_line(dst, src, width); |
| 1330 |
src += src_wrap; |
| 1331 |
dst += dst_wrap; |
| 1332 |
} |
| 1333 |
} |
| 1334 |
|
| 1335 |
/* 1x1 -> 2x2 */
|
| 1336 |
static void grow22(uint8_t *dst, int dst_wrap, |
| 1337 |
const uint8_t *src, int src_wrap, |
| 1338 |
int width, int height) |
| 1339 |
{
|
| 1340 |
for(;height > 0; height--) { |
| 1341 |
grow21_line(dst, src, width); |
| 1342 |
if (height%2) |
| 1343 |
src += src_wrap; |
| 1344 |
dst += dst_wrap; |
| 1345 |
} |
| 1346 |
} |
| 1347 |
|
| 1348 |
/* 1x1 -> 4x1 */
|
| 1349 |
static void grow41(uint8_t *dst, int dst_wrap, |
| 1350 |
const uint8_t *src, int src_wrap, |
| 1351 |
int width, int height) |
| 1352 |
{
|
| 1353 |
for(;height > 0; height--) { |
| 1354 |
grow41_line(dst, src, width); |
| 1355 |
src += src_wrap; |
| 1356 |
dst += dst_wrap; |
| 1357 |
} |
| 1358 |
} |
| 1359 |
|
| 1360 |
/* 1x1 -> 4x4 */
|
| 1361 |
static void grow44(uint8_t *dst, int dst_wrap, |
| 1362 |
const uint8_t *src, int src_wrap, |
| 1363 |
int width, int height) |
| 1364 |
{
|
| 1365 |
for(;height > 0; height--) { |
| 1366 |
grow41_line(dst, src, width); |
| 1367 |
if ((height & 3) == 1) |
| 1368 |
src += src_wrap; |
| 1369 |
dst += dst_wrap; |
| 1370 |
} |
| 1371 |
} |
| 1372 |
|
| 1373 |
/* 1x2 -> 2x1 */
|
| 1374 |
static void conv411(uint8_t *dst, int dst_wrap, |
| 1375 |
const uint8_t *src, int src_wrap, |
| 1376 |
int width, int height) |
| 1377 |
{
|
| 1378 |
int w, c;
|
| 1379 |
const uint8_t *s1, *s2;
|
| 1380 |
uint8_t *d; |
| 1381 |
|
| 1382 |
width>>=1;
|
| 1383 |
|
| 1384 |
for(;height > 0; height--) { |
| 1385 |
s1 = src; |
| 1386 |
s2 = src + src_wrap; |
| 1387 |
d = dst; |
| 1388 |
for(w = width;w > 0; w--) { |
| 1389 |
c = (s1[0] + s2[0]) >> 1; |
| 1390 |
d[0] = c;
|
| 1391 |
d[1] = c;
|
| 1392 |
s1++; |
| 1393 |
s2++; |
| 1394 |
d += 2;
|
| 1395 |
} |
| 1396 |
src += src_wrap * 2;
|
| 1397 |
dst += dst_wrap; |
| 1398 |
} |
| 1399 |
} |
| 1400 |
|
| 1401 |
/* XXX: add jpeg quantize code */
|
| 1402 |
|
| 1403 |
#define TRANSP_INDEX (6*6*6) |
| 1404 |
|
| 1405 |
/* this is maybe slow, but allows for extensions */
|
| 1406 |
static inline unsigned char gif_clut_index(uint8_t r, uint8_t g, uint8_t b) |
| 1407 |
{
|
| 1408 |
return ((((r)/47)%6)*6*6+(((g)/47)%6)*6+(((b)/47)%6)); |
| 1409 |
} |
| 1410 |
|
| 1411 |
static void build_rgb_palette(uint8_t *palette, int has_alpha) |
| 1412 |
{
|
| 1413 |
uint32_t *pal; |
| 1414 |
static const uint8_t pal_value[6] = { 0x00, 0x33, 0x66, 0x99, 0xcc, 0xff }; |
| 1415 |
int i, r, g, b;
|
| 1416 |
|
| 1417 |
pal = (uint32_t *)palette; |
| 1418 |
i = 0;
|
| 1419 |
for(r = 0; r < 6; r++) { |
| 1420 |
for(g = 0; g < 6; g++) { |
| 1421 |
for(b = 0; b < 6; b++) { |
| 1422 |
pal[i++] = (0xff << 24) | (pal_value[r] << 16) | |
| 1423 |
(pal_value[g] << 8) | pal_value[b];
|
| 1424 |
} |
| 1425 |
} |
| 1426 |
} |
| 1427 |
if (has_alpha)
|
| 1428 |
pal[i++] = 0;
|
| 1429 |
while (i < 256) |
| 1430 |
pal[i++] = 0xff000000;
|
| 1431 |
} |
| 1432 |
|
| 1433 |
/* copy bit n to bits 0 ... n - 1 */
|
| 1434 |
static inline unsigned int bitcopy_n(unsigned int a, int n) |
| 1435 |
{
|
| 1436 |
int mask;
|
| 1437 |
mask = (1 << n) - 1; |
| 1438 |
return (a & (0xff & ~mask)) | ((-((a >> n) & 1)) & mask); |
| 1439 |
} |
| 1440 |
|
| 1441 |
/* rgb555 handling */
|
| 1442 |
|
| 1443 |
#define RGB_NAME rgb555
|
| 1444 |
|
| 1445 |
#define RGB_IN(r, g, b, s)\
|
| 1446 |
{\
|
| 1447 |
unsigned int v = ((const uint16_t *)(s))[0];\ |
| 1448 |
r = bitcopy_n(v >> (10 - 3), 3);\ |
| 1449 |
g = bitcopy_n(v >> (5 - 3), 3);\ |
| 1450 |
b = bitcopy_n(v << 3, 3);\ |
| 1451 |
} |
| 1452 |
|
| 1453 |
#define RGBA_IN(r, g, b, a, s)\
|
| 1454 |
{\
|
| 1455 |
unsigned int v = ((const uint16_t *)(s))[0];\ |
| 1456 |
r = bitcopy_n(v >> (10 - 3), 3);\ |
| 1457 |
g = bitcopy_n(v >> (5 - 3), 3);\ |
| 1458 |
b = bitcopy_n(v << 3, 3);\ |
| 1459 |
a = (-(v >> 15)) & 0xff;\ |
| 1460 |
} |
| 1461 |
|
| 1462 |
#define RGBA_OUT(d, r, g, b, a)\
|
| 1463 |
{\
|
| 1464 |
((uint16_t *)(d))[0] = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3) | \ |
| 1465 |
((a << 8) & 0x8000);\ |
| 1466 |
} |
| 1467 |
|
| 1468 |
#define BPP 2 |
| 1469 |
|
| 1470 |
#include "imgconvert_template.h" |
| 1471 |
|
| 1472 |
/* rgb565 handling */
|
| 1473 |
|
| 1474 |
#define RGB_NAME rgb565
|
| 1475 |
|
| 1476 |
#define RGB_IN(r, g, b, s)\
|
| 1477 |
{\
|
| 1478 |
unsigned int v = ((const uint16_t *)(s))[0];\ |
| 1479 |
r = bitcopy_n(v >> (11 - 3), 3);\ |
| 1480 |
g = bitcopy_n(v >> (5 - 2), 2);\ |
| 1481 |
b = bitcopy_n(v << 3, 3);\ |
| 1482 |
} |
| 1483 |
|
| 1484 |
#define RGB_OUT(d, r, g, b)\
|
| 1485 |
{\
|
| 1486 |
((uint16_t *)(d))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);\ |
| 1487 |
} |
| 1488 |
|
| 1489 |
#define BPP 2 |
| 1490 |
|
| 1491 |
#include "imgconvert_template.h" |
| 1492 |
|
| 1493 |
/* bgr24 handling */
|
| 1494 |
|
| 1495 |
#define RGB_NAME bgr24
|
| 1496 |
|
| 1497 |
#define RGB_IN(r, g, b, s)\
|
| 1498 |
{\
|
| 1499 |
b = (s)[0];\
|
| 1500 |
g = (s)[1];\
|
| 1501 |
r = (s)[2];\
|
| 1502 |
} |
| 1503 |
|
| 1504 |
#define RGB_OUT(d, r, g, b)\
|
| 1505 |
{\
|
| 1506 |
(d)[0] = b;\
|
| 1507 |
(d)[1] = g;\
|
| 1508 |
(d)[2] = r;\
|
| 1509 |
} |
| 1510 |
|
| 1511 |
#define BPP 3 |
| 1512 |
|
| 1513 |
#include "imgconvert_template.h" |
| 1514 |
|
| 1515 |
#undef RGB_IN
|
| 1516 |
#undef RGB_OUT
|
| 1517 |
#undef BPP
|
| 1518 |
|
| 1519 |
/* rgb24 handling */
|
| 1520 |
|
| 1521 |
#define RGB_NAME rgb24
|
| 1522 |
#define FMT_RGB24
|
| 1523 |
|
| 1524 |
#define RGB_IN(r, g, b, s)\
|
| 1525 |
{\
|
| 1526 |
r = (s)[0];\
|
| 1527 |
g = (s)[1];\
|
| 1528 |
b = (s)[2];\
|
| 1529 |
} |
| 1530 |
|
| 1531 |
#define RGB_OUT(d, r, g, b)\
|
| 1532 |
{\
|
| 1533 |
(d)[0] = r;\
|
| 1534 |
(d)[1] = g;\
|
| 1535 |
(d)[2] = b;\
|
| 1536 |
} |
| 1537 |
|
| 1538 |
#define BPP 3 |
| 1539 |
|
| 1540 |
#include "imgconvert_template.h" |
| 1541 |
|
| 1542 |
/* rgba32 handling */
|
| 1543 |
|
| 1544 |
#define RGB_NAME rgba32
|
| 1545 |
#define FMT_RGBA32
|
| 1546 |
|
| 1547 |
#define RGB_IN(r, g, b, s)\
|
| 1548 |
{\
|
| 1549 |
unsigned int v = ((const uint32_t *)(s))[0];\ |
| 1550 |
r = (v >> 16) & 0xff;\ |
| 1551 |
g = (v >> 8) & 0xff;\ |
| 1552 |
b = v & 0xff;\
|
| 1553 |
} |
| 1554 |
|
| 1555 |
#define RGBA_IN(r, g, b, a, s)\
|
| 1556 |
{\
|
| 1557 |
unsigned int v = ((const uint32_t *)(s))[0];\ |
| 1558 |
a = (v >> 24) & 0xff;\ |
| 1559 |
r = (v >> 16) & 0xff;\ |
| 1560 |
g = (v >> 8) & 0xff;\ |
| 1561 |
b = v & 0xff;\
|
| 1562 |
} |
| 1563 |
|
| 1564 |
#define RGBA_OUT(d, r, g, b, a)\
|
| 1565 |
{\
|
| 1566 |
((uint32_t *)(d))[0] = (a << 24) | (r << 16) | (g << 8) | b;\ |
| 1567 |
} |
| 1568 |
|
| 1569 |
#define BPP 4 |
| 1570 |
|
| 1571 |
#include "imgconvert_template.h" |
| 1572 |
|
| 1573 |
static void mono_to_gray(AVPicture *dst, const AVPicture *src, |
| 1574 |
int width, int height, int xor_mask) |
| 1575 |
{
|
| 1576 |
const unsigned char *p; |
| 1577 |
unsigned char *q; |
| 1578 |
int v, dst_wrap, src_wrap;
|
| 1579 |
int y, w;
|
| 1580 |
|
| 1581 |
p = src->data[0];
|
| 1582 |
src_wrap = src->linesize[0] - ((width + 7) >> 3); |
| 1583 |
|
| 1584 |
q = dst->data[0];
|
| 1585 |
dst_wrap = dst->linesize[0] - width;
|
| 1586 |
for(y=0;y<height;y++) { |
| 1587 |
w = width; |
| 1588 |
while (w >= 8) { |
| 1589 |
v = *p++ ^ xor_mask; |
| 1590 |
q[0] = -(v >> 7); |
| 1591 |
q[1] = -((v >> 6) & 1); |
| 1592 |
q[2] = -((v >> 5) & 1); |
| 1593 |
q[3] = -((v >> 4) & 1); |
| 1594 |
q[4] = -((v >> 3) & 1); |
| 1595 |
q[5] = -((v >> 2) & 1); |
| 1596 |
q[6] = -((v >> 1) & 1); |
| 1597 |
q[7] = -((v >> 0) & 1); |
| 1598 |
w -= 8;
|
| 1599 |
q += 8;
|
| 1600 |
} |
| 1601 |
if (w > 0) { |
| 1602 |
v = *p++ ^ xor_mask; |
| 1603 |
do {
|
| 1604 |
q[0] = -((v >> 7) & 1); |
| 1605 |
q++; |
| 1606 |
v <<= 1;
|
| 1607 |
} while (--w);
|
| 1608 |
} |
| 1609 |
p += src_wrap; |
| 1610 |
q += dst_wrap; |
| 1611 |
} |
| 1612 |
} |
| 1613 |
|
| 1614 |
static void monowhite_to_gray(AVPicture *dst, const AVPicture *src, |
| 1615 |
int width, int height) |
| 1616 |
{
|
| 1617 |
mono_to_gray(dst, src, width, height, 0xff);
|
| 1618 |
} |
| 1619 |
|
| 1620 |
static void monoblack_to_gray(AVPicture *dst, const AVPicture *src, |
| 1621 |
int width, int height) |
| 1622 |
{
|
| 1623 |
mono_to_gray(dst, src, width, height, 0x00);
|
| 1624 |
} |
| 1625 |
|
| 1626 |
static void gray_to_mono(AVPicture *dst, const AVPicture *src, |
| 1627 |
int width, int height, int xor_mask) |
| 1628 |
{
|
| 1629 |
int n;
|
| 1630 |
const uint8_t *s;
|
| 1631 |
uint8_t *d; |
| 1632 |
int j, b, v, n1, src_wrap, dst_wrap, y;
|
| 1633 |
|
| 1634 |
s = src->data[0];
|
| 1635 |
src_wrap = src->linesize[0] - width;
|
| 1636 |
|
| 1637 |
d = dst->data[0];
|
| 1638 |
dst_wrap = dst->linesize[0] - ((width + 7) >> 3); |
| 1639 |
|
| 1640 |
for(y=0;y<height;y++) { |
| 1641 |
n = width; |
| 1642 |
while (n >= 8) { |
| 1643 |
v = 0;
|
| 1644 |
for(j=0;j<8;j++) { |
| 1645 |
b = s[0];
|
| 1646 |
s++; |
| 1647 |
v = (v << 1) | (b >> 7); |
| 1648 |
} |
| 1649 |
d[0] = v ^ xor_mask;
|
| 1650 |
d++; |
| 1651 |
n -= 8;
|
| 1652 |
} |
| 1653 |
if (n > 0) { |
| 1654 |
n1 = n; |
| 1655 |
v = 0;
|
| 1656 |
while (n > 0) { |
| 1657 |
b = s[0];
|
| 1658 |
s++; |
| 1659 |
v = (v << 1) | (b >> 7); |
| 1660 |
n--; |
| 1661 |
} |
| 1662 |
d[0] = (v << (8 - (n1 & 7))) ^ xor_mask; |
| 1663 |
d++; |
| 1664 |
} |
| 1665 |
s += src_wrap; |
| 1666 |
d += dst_wrap; |
| 1667 |
} |
| 1668 |
} |
| 1669 |
|
| 1670 |
static void gray_to_monowhite(AVPicture *dst, const AVPicture *src, |
| 1671 |
int width, int height) |
| 1672 |
{
|
| 1673 |
gray_to_mono(dst, src, width, height, 0xff);
|
| 1674 |
} |
| 1675 |
|
| 1676 |
static void gray_to_monoblack(AVPicture *dst, const AVPicture *src, |
| 1677 |
int width, int height) |
| 1678 |
{
|
| 1679 |
gray_to_mono(dst, src, width, height, 0x00);
|
| 1680 |
} |
| 1681 |
|
| 1682 |
typedef struct ConvertEntry { |
| 1683 |
void (*convert)(AVPicture *dst,
|
| 1684 |
const AVPicture *src, int width, int height); |
| 1685 |
} ConvertEntry; |
| 1686 |
|
| 1687 |
/* Add each new convertion function in this table. In order to be able
|
| 1688 |
to convert from any format to any format, the following constraints
|
| 1689 |
must be satisfied:
|
| 1690 |
|
| 1691 |
- all FF_COLOR_RGB formats must convert to and from PIX_FMT_RGB24
|
| 1692 |
|
| 1693 |
- all FF_COLOR_GRAY formats must convert to and from PIX_FMT_GRAY8
|
| 1694 |
|
| 1695 |
- all FF_COLOR_RGB formats with alpha must convert to and from PIX_FMT_RGBA32
|
| 1696 |
|
| 1697 |
- PIX_FMT_YUV444P and PIX_FMT_YUVJ444P must convert to and from
|
| 1698 |
PIX_FMT_RGB24.
|
| 1699 |
|
| 1700 |
- PIX_FMT_422 must convert to and from PIX_FMT_422P.
|
| 1701 |
|
| 1702 |
The other conversion functions are just optimisations for common cases.
|
| 1703 |
*/
|
| 1704 |
static ConvertEntry convert_table[PIX_FMT_NB][PIX_FMT_NB] = {
|
| 1705 |
[PIX_FMT_YUV420P] = {
|
| 1706 |
[PIX_FMT_YUV422] = {
|
| 1707 |
.convert = yuv420p_to_yuv422, |
| 1708 |
}, |
| 1709 |
[PIX_FMT_RGB555] = {
|
| 1710 |
.convert = yuv420p_to_rgb555 |
| 1711 |
}, |
| 1712 |
[PIX_FMT_RGB565] = {
|
| 1713 |
.convert = yuv420p_to_rgb565 |
| 1714 |
}, |
| 1715 |
[PIX_FMT_BGR24] = {
|
| 1716 |
.convert = yuv420p_to_bgr24 |
| 1717 |
}, |
| 1718 |
[PIX_FMT_RGB24] = {
|
| 1719 |
.convert = yuv420p_to_rgb24 |
| 1720 |
}, |
| 1721 |
[PIX_FMT_RGBA32] = {
|
| 1722 |
.convert = yuv420p_to_rgba32 |
| 1723 |
}, |
| 1724 |
[PIX_FMT_UYVY422] = {
|
| 1725 |
.convert = yuv420p_to_uyvy422, |
| 1726 |
}, |
| 1727 |
}, |
| 1728 |
[PIX_FMT_YUV422P] = {
|
| 1729 |
[PIX_FMT_YUV422] = {
|
| 1730 |
.convert = yuv422p_to_yuv422, |
| 1731 |
}, |
| 1732 |
[PIX_FMT_UYVY422] = {
|
| 1733 |
.convert = yuv422p_to_uyvy422, |
| 1734 |
}, |
| 1735 |
}, |
| 1736 |
[PIX_FMT_YUV444P] = {
|
| 1737 |
[PIX_FMT_RGB24] = {
|
| 1738 |
.convert = yuv444p_to_rgb24 |
| 1739 |
}, |
| 1740 |
}, |
| 1741 |
[PIX_FMT_YUVJ420P] = {
|
| 1742 |
[PIX_FMT_RGB555] = {
|
| 1743 |
.convert = yuvj420p_to_rgb555 |
| 1744 |
}, |
| 1745 |
[PIX_FMT_RGB565] = {
|
| 1746 |
.convert = yuvj420p_to_rgb565 |
| 1747 |
}, |
| 1748 |
[PIX_FMT_BGR24] = {
|
| 1749 |
.convert = yuvj420p_to_bgr24 |
| 1750 |
}, |
| 1751 |
[PIX_FMT_RGB24] = {
|
| 1752 |
.convert = yuvj420p_to_rgb24 |
| 1753 |
}, |
| 1754 |
[PIX_FMT_RGBA32] = {
|
| 1755 |
.convert = yuvj420p_to_rgba32 |
| 1756 |
}, |
| 1757 |
}, |
| 1758 |
[PIX_FMT_YUVJ444P] = {
|
| 1759 |
[PIX_FMT_RGB24] = {
|
| 1760 |
.convert = yuvj444p_to_rgb24 |
| 1761 |
}, |
| 1762 |
}, |
| 1763 |
[PIX_FMT_YUV422] = {
|
| 1764 |
[PIX_FMT_YUV420P] = {
|
| 1765 |
.convert = yuv422_to_yuv420p, |
| 1766 |
}, |
| 1767 |
[PIX_FMT_YUV422P] = {
|
| 1768 |
.convert = yuv422_to_yuv422p, |
| 1769 |
}, |
| 1770 |
}, |
| 1771 |
[PIX_FMT_UYVY422] = {
|
| 1772 |
[PIX_FMT_YUV420P] = {
|
| 1773 |
.convert = uyvy422_to_yuv420p, |
| 1774 |
}, |
| 1775 |
[PIX_FMT_YUV422P] = {
|
| 1776 |
.convert = uyvy422_to_yuv422p, |
| 1777 |
}, |
| 1778 |
}, |
| 1779 |
[PIX_FMT_RGB24] = {
|
| 1780 |
[PIX_FMT_YUV420P] = {
|
| 1781 |
.convert = rgb24_to_yuv420p |
| 1782 |
}, |
| 1783 |
[PIX_FMT_RGB565] = {
|
| 1784 |
.convert = rgb24_to_rgb565 |
| 1785 |
}, |
| 1786 |
[PIX_FMT_RGB555] = {
|
| 1787 |
.convert = rgb24_to_rgb555 |
| 1788 |
}, |
| 1789 |
[PIX_FMT_RGBA32] = {
|
| 1790 |
.convert = rgb24_to_rgba32 |
| 1791 |
}, |
| 1792 |
[PIX_FMT_BGR24] = {
|
| 1793 |
.convert = rgb24_to_bgr24 |
| 1794 |
}, |
| 1795 |
[PIX_FMT_GRAY8] = {
|
| 1796 |
.convert = rgb24_to_gray |
| 1797 |
}, |
| 1798 |
[PIX_FMT_PAL8] = {
|
| 1799 |
.convert = rgb24_to_pal8 |
| 1800 |
}, |
| 1801 |
[PIX_FMT_YUV444P] = {
|
| 1802 |
.convert = rgb24_to_yuv444p |
| 1803 |
}, |
| 1804 |
[PIX_FMT_YUVJ420P] = {
|
| 1805 |
.convert = rgb24_to_yuvj420p |
| 1806 |
}, |
| 1807 |
[PIX_FMT_YUVJ444P] = {
|
| 1808 |
.convert = rgb24_to_yuvj444p |
| 1809 |
}, |
| 1810 |
}, |
| 1811 |
[PIX_FMT_RGBA32] = {
|
| 1812 |
[PIX_FMT_RGB24] = {
|
| 1813 |
.convert = rgba32_to_rgb24 |
| 1814 |
}, |
| 1815 |
[PIX_FMT_RGB555] = {
|
| 1816 |
.convert = rgba32_to_rgb555 |
| 1817 |
}, |
| 1818 |
[PIX_FMT_PAL8] = {
|
| 1819 |
.convert = rgba32_to_pal8 |
| 1820 |
}, |
| 1821 |
[PIX_FMT_YUV420P] = {
|
| 1822 |
.convert = rgba32_to_yuv420p |
| 1823 |
}, |
| 1824 |
[PIX_FMT_GRAY8] = {
|
| 1825 |
.convert = rgba32_to_gray |
| 1826 |
}, |
| 1827 |
}, |
| 1828 |
[PIX_FMT_BGR24] = {
|
| 1829 |
[PIX_FMT_RGB24] = {
|
| 1830 |
.convert = bgr24_to_rgb24 |
| 1831 |
}, |
| 1832 |
[PIX_FMT_YUV420P] = {
|
| 1833 |
.convert = bgr24_to_yuv420p |
| 1834 |
}, |
| 1835 |
[PIX_FMT_GRAY8] = {
|
| 1836 |
.convert = bgr24_to_gray |
| 1837 |
}, |
| 1838 |
}, |
| 1839 |
[PIX_FMT_RGB555] = {
|
| 1840 |
[PIX_FMT_RGB24] = {
|
| 1841 |
.convert = rgb555_to_rgb24 |
| 1842 |
}, |
| 1843 |
[PIX_FMT_RGBA32] = {
|
| 1844 |
.convert = rgb555_to_rgba32 |
| 1845 |
}, |
| 1846 |
[PIX_FMT_YUV420P] = {
|
| 1847 |
.convert = rgb555_to_yuv420p |
| 1848 |
}, |
| 1849 |
[PIX_FMT_GRAY8] = {
|
| 1850 |
.convert = rgb555_to_gray |
| 1851 |
}, |
| 1852 |
}, |
| 1853 |
[PIX_FMT_RGB565] = {
|
| 1854 |
[PIX_FMT_RGB24] = {
|
| 1855 |
.convert = rgb565_to_rgb24 |
| 1856 |
}, |
| 1857 |
[PIX_FMT_YUV420P] = {
|
| 1858 |
.convert = rgb565_to_yuv420p |
| 1859 |
}, |
| 1860 |
[PIX_FMT_GRAY8] = {
|
| 1861 |
.convert = rgb565_to_gray |
| 1862 |
}, |
| 1863 |
}, |
| 1864 |
[PIX_FMT_GRAY8] = {
|
| 1865 |
[PIX_FMT_RGB555] = {
|
| 1866 |
.convert = gray_to_rgb555 |
| 1867 |
}, |
| 1868 |
[PIX_FMT_RGB565] = {
|
| 1869 |
.convert = gray_to_rgb565 |
| 1870 |
}, |
| 1871 |
[PIX_FMT_RGB24] = {
|
| 1872 |
.convert = gray_to_rgb24 |
| 1873 |
}, |
| 1874 |
[PIX_FMT_BGR24] = {
|
| 1875 |
.convert = gray_to_bgr24 |
| 1876 |
}, |
| 1877 |
[PIX_FMT_RGBA32] = {
|
| 1878 |
.convert = gray_to_rgba32 |
| 1879 |
}, |
| 1880 |
[PIX_FMT_MONOWHITE] = {
|
| 1881 |
.convert = gray_to_monowhite |
| 1882 |
}, |
| 1883 |
[PIX_FMT_MONOBLACK] = {
|
| 1884 |
.convert = gray_to_monoblack |
| 1885 |
}, |
| 1886 |
}, |
| 1887 |
[PIX_FMT_MONOWHITE] = {
|
| 1888 |
[PIX_FMT_GRAY8] = {
|
| 1889 |
.convert = monowhite_to_gray |
| 1890 |
}, |
| 1891 |
}, |
| 1892 |
[PIX_FMT_MONOBLACK] = {
|
| 1893 |
[PIX_FMT_GRAY8] = {
|
| 1894 |
.convert = monoblack_to_gray |
| 1895 |
}, |
| 1896 |
}, |
| 1897 |
[PIX_FMT_PAL8] = {
|
| 1898 |
[PIX_FMT_RGB555] = {
|
| 1899 |
.convert = pal8_to_rgb555 |
| 1900 |
}, |
| 1901 |
[PIX_FMT_RGB565] = {
|
| 1902 |
.convert = pal8_to_rgb565 |
| 1903 |
}, |
| 1904 |
[PIX_FMT_BGR24] = {
|
| 1905 |
.convert = pal8_to_bgr24 |
| 1906 |
}, |
| 1907 |
[PIX_FMT_RGB24] = {
|
| 1908 |
.convert = pal8_to_rgb24 |
| 1909 |
}, |
| 1910 |
[PIX_FMT_RGBA32] = {
|
| 1911 |
.convert = pal8_to_rgba32 |
| 1912 |
}, |
| 1913 |
}, |
| 1914 |
[PIX_FMT_UYVY411] = {
|
| 1915 |
[PIX_FMT_YUV411P] = {
|
| 1916 |
.convert = uyvy411_to_yuv411p, |
| 1917 |
}, |
| 1918 |
}, |
| 1919 |
|
| 1920 |
}; |
| 1921 |
|
| 1922 |
int avpicture_alloc(AVPicture *picture,
|
| 1923 |
int pix_fmt, int width, int height) |
| 1924 |
{
|
| 1925 |
unsigned int size; |
| 1926 |
void *ptr;
|
| 1927 |
|
| 1928 |
size = avpicture_get_size(pix_fmt, width, height); |
| 1929 |
if(size<0) |
| 1930 |
goto fail;
|
| 1931 |
ptr = av_malloc(size); |
| 1932 |
if (!ptr)
|
| 1933 |
goto fail;
|
| 1934 |
avpicture_fill(picture, ptr, pix_fmt, width, height); |
| 1935 |
return 0; |
| 1936 |
fail:
|
| 1937 |
memset(picture, 0, sizeof(AVPicture)); |
| 1938 |
return -1; |
| 1939 |
} |
| 1940 |
|
| 1941 |
void avpicture_free(AVPicture *picture)
|
| 1942 |
{
|
| 1943 |
av_free(picture->data[0]);
|
| 1944 |
} |
| 1945 |
|
| 1946 |
/* return true if yuv planar */
|
| 1947 |
static inline int is_yuv_planar(PixFmtInfo *ps) |
| 1948 |
{
|
| 1949 |
return (ps->color_type == FF_COLOR_YUV ||
|
| 1950 |
ps->color_type == FF_COLOR_YUV_JPEG) && |
| 1951 |
ps->pixel_type == FF_PIXEL_PLANAR; |
| 1952 |
} |
| 1953 |
|
| 1954 |
/* XXX: always use linesize. Return -1 if not supported */
|
| 1955 |
int img_convert(AVPicture *dst, int dst_pix_fmt, |
| 1956 |
const AVPicture *src, int src_pix_fmt, |
| 1957 |
int src_width, int src_height) |
| 1958 |
{
|
| 1959 |
static int inited; |
| 1960 |
int i, ret, dst_width, dst_height, int_pix_fmt;
|
| 1961 |
PixFmtInfo *src_pix, *dst_pix; |
| 1962 |
ConvertEntry *ce; |
| 1963 |
AVPicture tmp1, *tmp = &tmp1; |
| 1964 |
|
| 1965 |
if (src_pix_fmt < 0 || src_pix_fmt >= PIX_FMT_NB || |
| 1966 |
dst_pix_fmt < 0 || dst_pix_fmt >= PIX_FMT_NB)
|
| 1967 |
return -1; |
| 1968 |
if (src_width <= 0 || src_height <= 0) |
| 1969 |
return 0; |
| 1970 |
|
| 1971 |
if (!inited) {
|
| 1972 |
inited = 1;
|
| 1973 |
img_convert_init(); |
| 1974 |
} |
| 1975 |
|
| 1976 |
dst_width = src_width; |
| 1977 |
dst_height = src_height; |
| 1978 |
|
| 1979 |
dst_pix = &pix_fmt_info[dst_pix_fmt]; |
| 1980 |
src_pix = &pix_fmt_info[src_pix_fmt]; |
| 1981 |
if (src_pix_fmt == dst_pix_fmt) {
|
| 1982 |
/* no conversion needed: just copy */
|
| 1983 |
img_copy(dst, src, dst_pix_fmt, dst_width, dst_height); |
| 1984 |
return 0; |
| 1985 |
} |
| 1986 |
|
| 1987 |
ce = &convert_table[src_pix_fmt][dst_pix_fmt]; |
| 1988 |
if (ce->convert) {
|
| 1989 |
/* specific conversion routine */
|
| 1990 |
ce->convert(dst, src, dst_width, dst_height); |
| 1991 |
return 0; |
| 1992 |
} |
| 1993 |
|
| 1994 |
/* gray to YUV */
|
| 1995 |
if (is_yuv_planar(dst_pix) &&
|
| 1996 |
src_pix_fmt == PIX_FMT_GRAY8) {
|
| 1997 |
int w, h, y;
|
| 1998 |
uint8_t *d; |
| 1999 |
|
| 2000 |
if (dst_pix->color_type == FF_COLOR_YUV_JPEG) {
|
| 2001 |
img_copy_plane(dst->data[0], dst->linesize[0], |
| 2002 |
src->data[0], src->linesize[0], |
| 2003 |
dst_width, dst_height); |
| 2004 |
} else {
|
| 2005 |
img_apply_table(dst->data[0], dst->linesize[0], |
| 2006 |
src->data[0], src->linesize[0], |
| 2007 |
dst_width, dst_height, |
| 2008 |
y_jpeg_to_ccir); |
| 2009 |
} |
| 2010 |
/* fill U and V with 128 */
|
| 2011 |
w = dst_width; |
| 2012 |
h = dst_height; |
| 2013 |
w >>= dst_pix->x_chroma_shift; |
| 2014 |
h >>= dst_pix->y_chroma_shift; |
| 2015 |
for(i = 1; i <= 2; i++) { |
| 2016 |
d = dst->data[i]; |
| 2017 |
for(y = 0; y< h; y++) { |
| 2018 |
memset(d, 128, w);
|
| 2019 |
d += dst->linesize[i]; |
| 2020 |
} |
| 2021 |
} |
| 2022 |
return 0; |
| 2023 |
} |
| 2024 |
|
| 2025 |
/* YUV to gray */
|
| 2026 |
if (is_yuv_planar(src_pix) &&
|
| 2027 |
dst_pix_fmt == PIX_FMT_GRAY8) {
|
| 2028 |
if (src_pix->color_type == FF_COLOR_YUV_JPEG) {
|
| 2029 |
img_copy_plane(dst->data[0], dst->linesize[0], |
| 2030 |
src->data[0], src->linesize[0], |
| 2031 |
dst_width, dst_height); |
| 2032 |
} else {
|
| 2033 |
img_apply_table(dst->data[0], dst->linesize[0], |
| 2034 |
src->data[0], src->linesize[0], |
| 2035 |
dst_width, dst_height, |
| 2036 |
y_ccir_to_jpeg); |
| 2037 |
} |
| 2038 |
return 0; |
| 2039 |
} |
| 2040 |
|
| 2041 |
/* YUV to YUV planar */
|
| 2042 |
if (is_yuv_planar(dst_pix) && is_yuv_planar(src_pix)) {
|
| 2043 |
int x_shift, y_shift, w, h, xy_shift;
|
| 2044 |
void (*resize_func)(uint8_t *dst, int dst_wrap, |
| 2045 |
const uint8_t *src, int src_wrap, |
| 2046 |
int width, int height); |
| 2047 |
|
| 2048 |
/* compute chroma size of the smallest dimensions */
|
| 2049 |
w = dst_width; |
| 2050 |
h = dst_height; |
| 2051 |
if (dst_pix->x_chroma_shift >= src_pix->x_chroma_shift)
|
| 2052 |
w >>= dst_pix->x_chroma_shift; |
| 2053 |
else
|
| 2054 |
w >>= src_pix->x_chroma_shift; |
| 2055 |
if (dst_pix->y_chroma_shift >= src_pix->y_chroma_shift)
|
| 2056 |
h >>= dst_pix->y_chroma_shift; |
| 2057 |
else
|
| 2058 |
h >>= src_pix->y_chroma_shift; |
| 2059 |
|
| 2060 |
x_shift = (dst_pix->x_chroma_shift - src_pix->x_chroma_shift); |
| 2061 |
y_shift = (dst_pix->y_chroma_shift - src_pix->y_chroma_shift); |
| 2062 |
xy_shift = ((x_shift & 0xf) << 4) | (y_shift & 0xf); |
| 2063 |
/* there must be filters for conversion at least from and to
|
| 2064 |
YUV444 format */
|
| 2065 |
switch(xy_shift) {
|
| 2066 |
case 0x00: |
| 2067 |
resize_func = img_copy_plane; |
| 2068 |
break;
|
| 2069 |
case 0x10: |
| 2070 |
resize_func = shrink21; |
| 2071 |
break;
|
| 2072 |
case 0x20: |
| 2073 |
resize_func = shrink41; |
| 2074 |
break;
|
| 2075 |
case 0x01: |
| 2076 |
resize_func = shrink12; |
| 2077 |
break;
|
| 2078 |
case 0x11: |
| 2079 |
resize_func = shrink22; |
| 2080 |
break;
|
| 2081 |
case 0x22: |
| 2082 |
resize_func = shrink44; |
| 2083 |
break;
|
| 2084 |
case 0xf0: |
| 2085 |
resize_func = grow21; |
| 2086 |
break;
|
| 2087 |
case 0xe0: |
| 2088 |
resize_func = grow41; |
| 2089 |
break;
|
| 2090 |
case 0xff: |
| 2091 |
resize_func = grow22; |
| 2092 |
break;
|
| 2093 |
case 0xee: |
| 2094 |
resize_func = grow44; |
| 2095 |
break;
|
| 2096 |
case 0xf1: |
| 2097 |
resize_func = conv411; |
| 2098 |
break;
|
| 2099 |
default:
|
| 2100 |
/* currently not handled */
|
| 2101 |
goto no_chroma_filter;
|
| 2102 |
} |
| 2103 |
|
| 2104 |
img_copy_plane(dst->data[0], dst->linesize[0], |
| 2105 |
src->data[0], src->linesize[0], |
| 2106 |
dst_width, dst_height); |
| 2107 |
|
| 2108 |
for(i = 1;i <= 2; i++) |
| 2109 |
resize_func(dst->data[i], dst->linesize[i], |
| 2110 |
src->data[i], src->linesize[i], |
| 2111 |
dst_width>>dst_pix->x_chroma_shift, dst_height>>dst_pix->y_chroma_shift); |
| 2112 |
/* if yuv color space conversion is needed, we do it here on
|
| 2113 |
the destination image */
|
| 2114 |
if (dst_pix->color_type != src_pix->color_type) {
|
| 2115 |
const uint8_t *y_table, *c_table;
|
| 2116 |
if (dst_pix->color_type == FF_COLOR_YUV) {
|
| 2117 |
y_table = y_jpeg_to_ccir; |
| 2118 |
c_table = c_jpeg_to_ccir; |
| 2119 |
} else {
|
| 2120 |
y_table = y_ccir_to_jpeg; |
| 2121 |
c_table = c_ccir_to_jpeg; |
| 2122 |
} |
| 2123 |
img_apply_table(dst->data[0], dst->linesize[0], |
| 2124 |
dst->data[0], dst->linesize[0], |
| 2125 |
dst_width, dst_height, |
| 2126 |
y_table); |
| 2127 |
|
| 2128 |
for(i = 1;i <= 2; i++) |
| 2129 |
img_apply_table(dst->data[i], dst->linesize[i], |
| 2130 |
dst->data[i], dst->linesize[i], |
| 2131 |
dst_width>>dst_pix->x_chroma_shift, |
| 2132 |
dst_height>>dst_pix->y_chroma_shift, |
| 2133 |
c_table); |
| 2134 |
} |
| 2135 |
return 0; |
| 2136 |
} |
| 2137 |
no_chroma_filter:
|
| 2138 |
|
| 2139 |
/* try to use an intermediate format */
|
| 2140 |
if (src_pix_fmt == PIX_FMT_YUV422 ||
|
| 2141 |
dst_pix_fmt == PIX_FMT_YUV422) {
|
| 2142 |
/* specific case: convert to YUV422P first */
|
| 2143 |
int_pix_fmt = PIX_FMT_YUV422P; |
| 2144 |
} else if (src_pix_fmt == PIX_FMT_UYVY422 || |
| 2145 |
dst_pix_fmt == PIX_FMT_UYVY422) {
|
| 2146 |
/* specific case: convert to YUV422P first */
|
| 2147 |
int_pix_fmt = PIX_FMT_YUV422P; |
| 2148 |
} else if (src_pix_fmt == PIX_FMT_UYVY411 || |
| 2149 |
dst_pix_fmt == PIX_FMT_UYVY411) {
|
| 2150 |
/* specific case: convert to YUV411P first */
|
| 2151 |
int_pix_fmt = PIX_FMT_YUV411P; |
| 2152 |
} else if ((src_pix->color_type == FF_COLOR_GRAY && |
| 2153 |
src_pix_fmt != PIX_FMT_GRAY8) || |
| 2154 |
(dst_pix->color_type == FF_COLOR_GRAY && |
| 2155 |
dst_pix_fmt != PIX_FMT_GRAY8)) {
|
| 2156 |
/* gray8 is the normalized format */
|
| 2157 |
int_pix_fmt = PIX_FMT_GRAY8; |
| 2158 |
} else if ((is_yuv_planar(src_pix) && |
| 2159 |
src_pix_fmt != PIX_FMT_YUV444P && |
| 2160 |
src_pix_fmt != PIX_FMT_YUVJ444P)) {
|
| 2161 |
/* yuv444 is the normalized format */
|
| 2162 |
if (src_pix->color_type == FF_COLOR_YUV_JPEG)
|
| 2163 |
int_pix_fmt = PIX_FMT_YUVJ444P; |
| 2164 |
else
|
| 2165 |
int_pix_fmt = PIX_FMT_YUV444P; |
| 2166 |
} else if ((is_yuv_planar(dst_pix) && |
| 2167 |
dst_pix_fmt != PIX_FMT_YUV444P && |
| 2168 |
dst_pix_fmt != PIX_FMT_YUVJ444P)) {
|
| 2169 |
/* yuv444 is the normalized format */
|
| 2170 |
if (dst_pix->color_type == FF_COLOR_YUV_JPEG)
|
| 2171 |
int_pix_fmt = PIX_FMT_YUVJ444P; |
| 2172 |
else
|
| 2173 |
int_pix_fmt = PIX_FMT_YUV444P; |
| 2174 |
} else {
|
| 2175 |
/* the two formats are rgb or gray8 or yuv[j]444p */
|
| 2176 |
if (src_pix->is_alpha && dst_pix->is_alpha)
|
| 2177 |
int_pix_fmt = PIX_FMT_RGBA32; |
| 2178 |
else
|
| 2179 |
int_pix_fmt = PIX_FMT_RGB24; |
| 2180 |
} |
| 2181 |
if (avpicture_alloc(tmp, int_pix_fmt, dst_width, dst_height) < 0) |
| 2182 |
return -1; |
| 2183 |
ret = -1;
|
| 2184 |
if (img_convert(tmp, int_pix_fmt,
|
| 2185 |
src, src_pix_fmt, src_width, src_height) < 0)
|
| 2186 |
goto fail1;
|
| 2187 |
if (img_convert(dst, dst_pix_fmt,
|
| 2188 |
tmp, int_pix_fmt, dst_width, dst_height) < 0)
|
| 2189 |
goto fail1;
|
| 2190 |
ret = 0;
|
| 2191 |
fail1:
|
| 2192 |
avpicture_free(tmp); |
| 2193 |
return ret;
|
| 2194 |
} |
| 2195 |
|
| 2196 |
/* NOTE: we scan all the pixels to have an exact information */
|
| 2197 |
static int get_alpha_info_pal8(const AVPicture *src, int width, int height) |
| 2198 |
{
|
| 2199 |
const unsigned char *p; |
| 2200 |
int src_wrap, ret, x, y;
|
| 2201 |
unsigned int a; |
| 2202 |
uint32_t *palette = (uint32_t *)src->data[1];
|
| 2203 |
|
| 2204 |
p = src->data[0];
|
| 2205 |
src_wrap = src->linesize[0] - width;
|
| 2206 |
ret = 0;
|
| 2207 |
for(y=0;y<height;y++) { |
| 2208 |
for(x=0;x<width;x++) { |
| 2209 |
a = palette[p[0]] >> 24; |
| 2210 |
if (a == 0x00) { |
| 2211 |
ret |= FF_ALPHA_TRANSP; |
| 2212 |
} else if (a != 0xff) { |
| 2213 |
ret |= FF_ALPHA_SEMI_TRANSP; |
| 2214 |
} |
| 2215 |
p++; |
| 2216 |
} |
| 2217 |
p += src_wrap; |
| 2218 |
} |
| 2219 |
return ret;
|
| 2220 |
} |
| 2221 |
|
| 2222 |
/**
|
| 2223 |
* Tell if an image really has transparent alpha values.
|
| 2224 |
* @return ored mask of FF_ALPHA_xxx constants
|
| 2225 |
*/
|
| 2226 |
int img_get_alpha_info(const AVPicture *src, |
| 2227 |
int pix_fmt, int width, int height) |
| 2228 |
{
|
| 2229 |
PixFmtInfo *pf = &pix_fmt_info[pix_fmt]; |
| 2230 |
int ret;
|
| 2231 |
|
| 2232 |
pf = &pix_fmt_info[pix_fmt]; |
| 2233 |
/* no alpha can be represented in format */
|
| 2234 |
if (!pf->is_alpha)
|
| 2235 |
return 0; |
| 2236 |
switch(pix_fmt) {
|
| 2237 |
case PIX_FMT_RGBA32:
|
| 2238 |
ret = get_alpha_info_rgba32(src, width, height); |
| 2239 |
break;
|
| 2240 |
case PIX_FMT_RGB555:
|
| 2241 |
ret = get_alpha_info_rgb555(src, width, height); |
| 2242 |
break;
|
| 2243 |
case PIX_FMT_PAL8:
|
| 2244 |
ret = get_alpha_info_pal8(src, width, height); |
| 2245 |
break;
|
| 2246 |
default:
|
| 2247 |
/* we do not know, so everything is indicated */
|
| 2248 |
ret = FF_ALPHA_TRANSP | FF_ALPHA_SEMI_TRANSP; |
| 2249 |
break;
|
| 2250 |
} |
| 2251 |
return ret;
|
| 2252 |
} |
| 2253 |
|
| 2254 |
#ifdef HAVE_MMX
|
| 2255 |
#define DEINT_INPLACE_LINE_LUM \
|
| 2256 |
movd_m2r(lum_m4[0],mm0);\
|
| 2257 |
movd_m2r(lum_m3[0],mm1);\
|
| 2258 |
movd_m2r(lum_m2[0],mm2);\
|
| 2259 |
movd_m2r(lum_m1[0],mm3);\
|
| 2260 |
movd_m2r(lum[0],mm4);\
|
| 2261 |
punpcklbw_r2r(mm7,mm0);\ |
| 2262 |
movd_r2m(mm2,lum_m4[0]);\
|
| 2263 |
punpcklbw_r2r(mm7,mm1);\ |
| 2264 |
punpcklbw_r2r(mm7,mm2);\ |
| 2265 |
punpcklbw_r2r(mm7,mm3);\ |
| 2266 |
punpcklbw_r2r(mm7,mm4);\ |
| 2267 |
paddw_r2r(mm3,mm1);\ |
| 2268 |
psllw_i2r(1,mm2);\
|
| 2269 |
paddw_r2r(mm4,mm0);\ |
| 2270 |
psllw_i2r(2,mm1);\
|
| 2271 |
paddw_r2r(mm6,mm2);\ |
| 2272 |
paddw_r2r(mm2,mm1);\ |
| 2273 |
psubusw_r2r(mm0,mm1);\ |
| 2274 |
psrlw_i2r(3,mm1);\
|
| 2275 |
packuswb_r2r(mm7,mm1);\ |
| 2276 |
movd_r2m(mm1,lum_m2[0]);
|
| 2277 |
|
| 2278 |
#define DEINT_LINE_LUM \
|
| 2279 |
movd_m2r(lum_m4[0],mm0);\
|
| 2280 |
movd_m2r(lum_m3[0],mm1);\
|
| 2281 |
movd_m2r(lum_m2[0],mm2);\
|
| 2282 |
movd_m2r(lum_m1[0],mm3);\
|
| 2283 |
movd_m2r(lum[0],mm4);\
|
| 2284 |
punpcklbw_r2r(mm7,mm0);\ |
| 2285 |
punpcklbw_r2r(mm7,mm1);\ |
| 2286 |
punpcklbw_r2r(mm7,mm2);\ |
| 2287 |
punpcklbw_r2r(mm7,mm3);\ |
| 2288 |
punpcklbw_r2r(mm7,mm4);\ |
| 2289 |
paddw_r2r(mm3,mm1);\ |
| 2290 |
psllw_i2r(1,mm2);\
|
| 2291 |
paddw_r2r(mm4,mm0);\ |
| 2292 |
psllw_i2r(2,mm1);\
|
| 2293 |
paddw_r2r(mm6,mm2);\ |
| 2294 |
paddw_r2r(mm2,mm1);\ |
| 2295 |
psubusw_r2r(mm0,mm1);\ |
| 2296 |
psrlw_i2r(3,mm1);\
|
| 2297 |
packuswb_r2r(mm7,mm1);\ |
| 2298 |
movd_r2m(mm1,dst[0]);
|
| 2299 |
#endif
|
| 2300 |
|
| 2301 |
/* filter parameters: [-1 4 2 4 -1] // 8 */
|
| 2302 |
static void deinterlace_line(uint8_t *dst, |
| 2303 |
const uint8_t *lum_m4, const uint8_t *lum_m3, |
| 2304 |
const uint8_t *lum_m2, const uint8_t *lum_m1, |
| 2305 |
const uint8_t *lum,
|
| 2306 |
int size)
|
| 2307 |
{
|
| 2308 |
#ifndef HAVE_MMX
|
| 2309 |
uint8_t *cm = cropTbl + MAX_NEG_CROP; |
| 2310 |
int sum;
|
| 2311 |
|
| 2312 |
for(;size > 0;size--) { |
| 2313 |
sum = -lum_m4[0];
|
| 2314 |
sum += lum_m3[0] << 2; |
| 2315 |
sum += lum_m2[0] << 1; |
| 2316 |
sum += lum_m1[0] << 2; |
| 2317 |
sum += -lum[0];
|
| 2318 |
dst[0] = cm[(sum + 4) >> 3]; |
| 2319 |
lum_m4++; |
| 2320 |
lum_m3++; |
| 2321 |
lum_m2++; |
| 2322 |
lum_m1++; |
| 2323 |
lum++; |
| 2324 |
dst++; |
| 2325 |
} |
| 2326 |
#else
|
| 2327 |
|
| 2328 |
{
|
| 2329 |
mmx_t rounder; |
| 2330 |
rounder.uw[0]=4; |
| 2331 |
rounder.uw[1]=4; |
| 2332 |
rounder.uw[2]=4; |
| 2333 |
rounder.uw[3]=4; |
| 2334 |
pxor_r2r(mm7,mm7); |
| 2335 |
movq_m2r(rounder,mm6); |
| 2336 |
} |
| 2337 |
for (;size > 3; size-=4) { |
| 2338 |
DEINT_LINE_LUM |
| 2339 |
lum_m4+=4;
|
| 2340 |
lum_m3+=4;
|
| 2341 |
lum_m2+=4;
|
| 2342 |
lum_m1+=4;
|
| 2343 |
lum+=4;
|
| 2344 |
dst+=4;
|
| 2345 |
} |
| 2346 |
#endif
|
| 2347 |
} |
| 2348 |
static void deinterlace_line_inplace(uint8_t *lum_m4, uint8_t *lum_m3, uint8_t *lum_m2, uint8_t *lum_m1, uint8_t *lum, |
| 2349 |
int size)
|
| 2350 |
{
|
| 2351 |
#ifndef HAVE_MMX
|
| 2352 |
uint8_t *cm = cropTbl + MAX_NEG_CROP; |
| 2353 |
int sum;
|
| 2354 |
|
| 2355 |
for(;size > 0;size--) { |
| 2356 |
sum = -lum_m4[0];
|
| 2357 |
sum += lum_m3[0] << 2; |
| 2358 |
sum += lum_m2[0] << 1; |
| 2359 |
lum_m4[0]=lum_m2[0]; |
| 2360 |
sum += lum_m1[0] << 2; |
| 2361 |
sum += -lum[0];
|
| 2362 |
lum_m2[0] = cm[(sum + 4) >> 3]; |
| 2363 |
lum_m4++; |
| 2364 |
lum_m3++; |
| 2365 |
lum_m2++; |
| 2366 |
lum_m1++; |
| 2367 |
lum++; |
| 2368 |
} |
| 2369 |
#else
|
| 2370 |
|
| 2371 |
{
|
| 2372 |
mmx_t rounder; |
| 2373 |
rounder.uw[0]=4; |
| 2374 |
rounder.uw[1]=4; |
| 2375 |
rounder.uw[2]=4; |
| 2376 |
rounder.uw[3]=4; |
| 2377 |
pxor_r2r(mm7,mm7); |
| 2378 |
movq_m2r(rounder,mm6); |
| 2379 |
} |
| 2380 |
for (;size > 3; size-=4) { |
| 2381 |
DEINT_INPLACE_LINE_LUM |
| 2382 |
lum_m4+=4;
|
| 2383 |
lum_m3+=4;
|
| 2384 |
lum_m2+=4;
|
| 2385 |
lum_m1+=4;
|
| 2386 |
lum+=4;
|
| 2387 |
} |
| 2388 |
#endif
|
| 2389 |
} |
| 2390 |
|
| 2391 |
/* deinterlacing : 2 temporal taps, 3 spatial taps linear filter. The
|
| 2392 |
top field is copied as is, but the bottom field is deinterlaced
|
| 2393 |
against the top field. */
|
| 2394 |
static void deinterlace_bottom_field(uint8_t *dst, int dst_wrap, |
| 2395 |
const uint8_t *src1, int src_wrap, |
| 2396 |
int width, int height) |
| 2397 |
{
|
| 2398 |
const uint8_t *src_m2, *src_m1, *src_0, *src_p1, *src_p2;
|
| 2399 |
int y;
|
| 2400 |
|
| 2401 |
src_m2 = src1; |
| 2402 |
src_m1 = src1; |
| 2403 |
src_0=&src_m1[src_wrap]; |
| 2404 |
src_p1=&src_0[src_wrap]; |
| 2405 |
src_p2=&src_p1[src_wrap]; |
| 2406 |
for(y=0;y<(height-2);y+=2) { |
| 2407 |
memcpy(dst,src_m1,width); |
| 2408 |
dst += dst_wrap; |
| 2409 |
deinterlace_line(dst,src_m2,src_m1,src_0,src_p1,src_p2,width); |
| 2410 |
src_m2 = src_0; |
| 2411 |
src_m1 = src_p1; |
| 2412 |
src_0 = src_p2; |
| 2413 |
src_p1 += 2*src_wrap;
|
| 2414 |
src_p2 += 2*src_wrap;
|
| 2415 |
dst += dst_wrap; |
| 2416 |
} |
| 2417 |
memcpy(dst,src_m1,width); |
| 2418 |
dst += dst_wrap; |
| 2419 |
/* do last line */
|
| 2420 |
deinterlace_line(dst,src_m2,src_m1,src_0,src_0,src_0,width); |
| 2421 |
} |
| 2422 |
|
| 2423 |
static void deinterlace_bottom_field_inplace(uint8_t *src1, int src_wrap, |
| 2424 |
int width, int height) |
| 2425 |
{
|
| 2426 |
uint8_t *src_m1, *src_0, *src_p1, *src_p2; |
| 2427 |
int y;
|
| 2428 |
uint8_t *buf; |
| 2429 |
buf = (uint8_t*)av_malloc(width); |
| 2430 |
|
| 2431 |
src_m1 = src1; |
| 2432 |
memcpy(buf,src_m1,width); |
| 2433 |
src_0=&src_m1[src_wrap]; |
| 2434 |
src_p1=&src_0[src_wrap]; |
| 2435 |
src_p2=&src_p1[src_wrap]; |
| 2436 |
for(y=0;y<(height-2);y+=2) { |
| 2437 |
deinterlace_line_inplace(buf,src_m1,src_0,src_p1,src_p2,width); |
| 2438 |
src_m1 = src_p1; |
| 2439 |
src_0 = src_p2; |
| 2440 |
src_p1 += 2*src_wrap;
|
| 2441 |
src_p2 += 2*src_wrap;
|
| 2442 |
} |
| 2443 |
/* do last line */
|
| 2444 |
deinterlace_line_inplace(buf,src_m1,src_0,src_0,src_0,width); |
| 2445 |
av_free(buf); |
| 2446 |
} |
| 2447 |
|
| 2448 |
|
| 2449 |
/* deinterlace - if not supported return -1 */
|
| 2450 |
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src, |
| 2451 |
int pix_fmt, int width, int height) |
| 2452 |
{
|
| 2453 |
int i;
|
| 2454 |
|
| 2455 |
if (pix_fmt != PIX_FMT_YUV420P &&
|
| 2456 |
pix_fmt != PIX_FMT_YUV422P && |
| 2457 |
pix_fmt != PIX_FMT_YUV444P && |
| 2458 |
pix_fmt != PIX_FMT_YUV411P) |
| 2459 |
return -1; |
| 2460 |
if ((width & 3) != 0 || (height & 3) != 0) |
| 2461 |
return -1; |
| 2462 |
|
| 2463 |
for(i=0;i<3;i++) { |
| 2464 |
if (i == 1) { |
| 2465 |
switch(pix_fmt) {
|
| 2466 |
case PIX_FMT_YUV420P:
|
| 2467 |
width >>= 1;
|
| 2468 |
height >>= 1;
|
| 2469 |
break;
|
| 2470 |
case PIX_FMT_YUV422P:
|
| 2471 |
width >>= 1;
|
| 2472 |
break;
|
| 2473 |
case PIX_FMT_YUV411P:
|
| 2474 |
width >>= 2;
|
| 2475 |
break;
|
| 2476 |
default:
|
| 2477 |
break;
|
| 2478 |
} |
| 2479 |
} |
| 2480 |
if (src == dst) {
|
| 2481 |
deinterlace_bottom_field_inplace(dst->data[i], dst->linesize[i], |
| 2482 |
width, height); |
| 2483 |
} else {
|
| 2484 |
deinterlace_bottom_field(dst->data[i],dst->linesize[i], |
| 2485 |
src->data[i], src->linesize[i], |
| 2486 |
width, height); |
| 2487 |
} |
| 2488 |
} |
| 2489 |
#ifdef HAVE_MMX
|
| 2490 |
emms(); |
| 2491 |
#endif
|
| 2492 |
return 0; |
| 2493 |
} |
| 2494 |
|
| 2495 |
#undef FIX
|