2 * Misc image convertion routines
3 * Copyright (c) 2001, 2002, 2003 Fabrice Bellard.
5 * This file is part of FFmpeg.
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.
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.
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
24 * Misc image convertion routines.
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
37 #include "libvo/fastmemcpy.h"
44 #define xglue(x, y) x ## y
45 #define glue(x, y) xglue(x, y)
47 #define FF_COLOR_RGB 0 /* RGB color space */
48 #define FF_COLOR_GRAY 1 /* gray color space */
49 #define FF_COLOR_YUV 2 /* YUV color space. 16 <= Y <= 235, 16 <= U, V <= 240 */
50 #define FF_COLOR_YUV_JPEG 3 /* YUV color space. 0 <= Y <= 255, 0 <= U, V <= 255 */
52 #define FF_PIXEL_PLANAR 0 /* each channel has one component in AVPicture */
53 #define FF_PIXEL_PACKED 1 /* only one components containing all the channels */
54 #define FF_PIXEL_PALETTE 2 /* one components containing indexes for a palette */
56 typedef 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 x_chroma_shift; /* X chroma subsampling factor is 2 ^ shift */
63 uint8_t y_chroma_shift; /* Y chroma subsampling factor is 2 ^ shift */
64 uint8_t depth; /* bit depth of the color components */
67 /* this table gives more information about formats */
68 static const PixFmtInfo pix_fmt_info[PIX_FMT_NB] = {
73 .color_type = FF_COLOR_YUV,
74 .pixel_type = FF_PIXEL_PLANAR,
76 .x_chroma_shift = 1, .y_chroma_shift = 1,
81 .color_type = FF_COLOR_YUV,
82 .pixel_type = FF_PIXEL_PLANAR,
84 .x_chroma_shift = 1, .y_chroma_shift = 0,
89 .color_type = FF_COLOR_YUV,
90 .pixel_type = FF_PIXEL_PLANAR,
92 .x_chroma_shift = 0, .y_chroma_shift = 0,
97 .color_type = FF_COLOR_YUV,
98 .pixel_type = FF_PIXEL_PACKED,
100 .x_chroma_shift = 1, .y_chroma_shift = 0,
102 [PIX_FMT_UYVY422] = {
105 .color_type = FF_COLOR_YUV,
106 .pixel_type = FF_PIXEL_PACKED,
108 .x_chroma_shift = 1, .y_chroma_shift = 0,
110 [PIX_FMT_YUV410P] = {
113 .color_type = FF_COLOR_YUV,
114 .pixel_type = FF_PIXEL_PLANAR,
116 .x_chroma_shift = 2, .y_chroma_shift = 2,
118 [PIX_FMT_YUV411P] = {
121 .color_type = FF_COLOR_YUV,
122 .pixel_type = FF_PIXEL_PLANAR,
124 .x_chroma_shift = 2, .y_chroma_shift = 0,
128 [PIX_FMT_YUVJ420P] = {
131 .color_type = FF_COLOR_YUV_JPEG,
132 .pixel_type = FF_PIXEL_PLANAR,
134 .x_chroma_shift = 1, .y_chroma_shift = 1,
136 [PIX_FMT_YUVJ422P] = {
139 .color_type = FF_COLOR_YUV_JPEG,
140 .pixel_type = FF_PIXEL_PLANAR,
142 .x_chroma_shift = 1, .y_chroma_shift = 0,
144 [PIX_FMT_YUVJ444P] = {
147 .color_type = FF_COLOR_YUV_JPEG,
148 .pixel_type = FF_PIXEL_PLANAR,
150 .x_chroma_shift = 0, .y_chroma_shift = 0,
157 .color_type = FF_COLOR_RGB,
158 .pixel_type = FF_PIXEL_PACKED,
160 .x_chroma_shift = 0, .y_chroma_shift = 0,
165 .color_type = FF_COLOR_RGB,
166 .pixel_type = FF_PIXEL_PACKED,
168 .x_chroma_shift = 0, .y_chroma_shift = 0,
172 .nb_channels = 4, .is_alpha = 1,
173 .color_type = FF_COLOR_RGB,
174 .pixel_type = FF_PIXEL_PACKED,
176 .x_chroma_shift = 0, .y_chroma_shift = 0,
181 .color_type = FF_COLOR_RGB,
182 .pixel_type = FF_PIXEL_PACKED,
184 .x_chroma_shift = 0, .y_chroma_shift = 0,
189 .color_type = FF_COLOR_RGB,
190 .pixel_type = FF_PIXEL_PACKED,
192 .x_chroma_shift = 0, .y_chroma_shift = 0,
195 /* gray / mono formats */
196 [PIX_FMT_GRAY16BE] = {
199 .color_type = FF_COLOR_GRAY,
200 .pixel_type = FF_PIXEL_PLANAR,
203 [PIX_FMT_GRAY16LE] = {
206 .color_type = FF_COLOR_GRAY,
207 .pixel_type = FF_PIXEL_PLANAR,
213 .color_type = FF_COLOR_GRAY,
214 .pixel_type = FF_PIXEL_PLANAR,
217 [PIX_FMT_MONOWHITE] = {
220 .color_type = FF_COLOR_GRAY,
221 .pixel_type = FF_PIXEL_PLANAR,
224 [PIX_FMT_MONOBLACK] = {
227 .color_type = FF_COLOR_GRAY,
228 .pixel_type = FF_PIXEL_PLANAR,
232 /* paletted formats */
235 .nb_channels = 4, .is_alpha = 1,
236 .color_type = FF_COLOR_RGB,
237 .pixel_type = FF_PIXEL_PALETTE,
240 [PIX_FMT_XVMC_MPEG2_MC] = {
243 [PIX_FMT_XVMC_MPEG2_IDCT] = {
246 [PIX_FMT_UYVY411] = {
249 .color_type = FF_COLOR_YUV,
250 .pixel_type = FF_PIXEL_PACKED,
252 .x_chroma_shift = 2, .y_chroma_shift = 0,
256 .nb_channels = 4, .is_alpha = 1,
257 .color_type = FF_COLOR_RGB,
258 .pixel_type = FF_PIXEL_PACKED,
260 .x_chroma_shift = 0, .y_chroma_shift = 0,
265 .color_type = FF_COLOR_RGB,
266 .pixel_type = FF_PIXEL_PACKED,
268 .x_chroma_shift = 0, .y_chroma_shift = 0,
273 .color_type = FF_COLOR_RGB,
274 .pixel_type = FF_PIXEL_PACKED,
276 .x_chroma_shift = 0, .y_chroma_shift = 0,
281 .color_type = FF_COLOR_RGB,
282 .pixel_type = FF_PIXEL_PACKED,
284 .x_chroma_shift = 0, .y_chroma_shift = 0,
289 .color_type = FF_COLOR_RGB,
290 .pixel_type = FF_PIXEL_PACKED,
292 .x_chroma_shift = 0, .y_chroma_shift = 0,
294 [PIX_FMT_RGB4_BYTE] = {
297 .color_type = FF_COLOR_RGB,
298 .pixel_type = FF_PIXEL_PACKED,
300 .x_chroma_shift = 0, .y_chroma_shift = 0,
305 .color_type = FF_COLOR_RGB,
306 .pixel_type = FF_PIXEL_PACKED,
308 .x_chroma_shift = 0, .y_chroma_shift = 0,
313 .color_type = FF_COLOR_RGB,
314 .pixel_type = FF_PIXEL_PACKED,
316 .x_chroma_shift = 0, .y_chroma_shift = 0,
318 [PIX_FMT_BGR4_BYTE] = {
321 .color_type = FF_COLOR_RGB,
322 .pixel_type = FF_PIXEL_PACKED,
324 .x_chroma_shift = 0, .y_chroma_shift = 0,
329 .color_type = FF_COLOR_YUV,
330 .pixel_type = FF_PIXEL_PLANAR,
332 .x_chroma_shift = 1, .y_chroma_shift = 1,
337 .color_type = FF_COLOR_YUV,
338 .pixel_type = FF_PIXEL_PLANAR,
340 .x_chroma_shift = 1, .y_chroma_shift = 1,
343 [PIX_FMT_BGR32_1] = {
345 .nb_channels = 4, .is_alpha = 1,
346 .color_type = FF_COLOR_RGB,
347 .pixel_type = FF_PIXEL_PACKED,
349 .x_chroma_shift = 0, .y_chroma_shift = 0,
351 [PIX_FMT_RGB32_1] = {
353 .nb_channels = 4, .is_alpha = 1,
354 .color_type = FF_COLOR_RGB,
355 .pixel_type = FF_PIXEL_PACKED,
357 .x_chroma_shift = 0, .y_chroma_shift = 0,
361 void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift)
363 *h_shift = pix_fmt_info[pix_fmt].x_chroma_shift;
364 *v_shift = pix_fmt_info[pix_fmt].y_chroma_shift;
367 const char *avcodec_get_pix_fmt_name(int pix_fmt)
369 if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB)
372 return pix_fmt_info[pix_fmt].name;
375 enum PixelFormat avcodec_get_pix_fmt(const char* name)
379 for (i=0; i < PIX_FMT_NB; i++)
380 if (!strcmp(pix_fmt_info[i].name, name))
385 /* Picture field are filled with 'ptr' addresses. Also return size */
386 int avpicture_fill(AVPicture *picture, uint8_t *ptr,
387 int pix_fmt, int width, int height)
389 int size, w2, h2, size2;
390 const PixFmtInfo *pinfo;
392 if(avcodec_check_dimensions(NULL, width, height))
395 pinfo = &pix_fmt_info[pix_fmt];
396 size = width * height;
398 case PIX_FMT_YUV420P:
399 case PIX_FMT_YUV422P:
400 case PIX_FMT_YUV444P:
401 case PIX_FMT_YUV410P:
402 case PIX_FMT_YUV411P:
403 case PIX_FMT_YUVJ420P:
404 case PIX_FMT_YUVJ422P:
405 case PIX_FMT_YUVJ444P:
406 w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
407 h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
409 picture->data[0] = ptr;
410 picture->data[1] = picture->data[0] + size;
411 picture->data[2] = picture->data[1] + size2;
412 picture->linesize[0] = width;
413 picture->linesize[1] = w2;
414 picture->linesize[2] = w2;
415 return size + 2 * size2;
418 w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
419 h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
421 picture->data[0] = ptr;
422 picture->data[1] = picture->data[0] + size;
423 picture->data[2] = NULL;
424 picture->linesize[0] = width;
425 picture->linesize[1] = w2;
426 picture->linesize[2] = 0;
427 return size + 2 * size2;
430 picture->data[0] = ptr;
431 picture->data[1] = NULL;
432 picture->data[2] = NULL;
433 picture->linesize[0] = width * 3;
437 case PIX_FMT_RGB32_1:
438 case PIX_FMT_BGR32_1:
439 picture->data[0] = ptr;
440 picture->data[1] = NULL;
441 picture->data[2] = NULL;
442 picture->linesize[0] = width * 4;
444 case PIX_FMT_GRAY16BE:
445 case PIX_FMT_GRAY16LE:
451 picture->data[0] = ptr;
452 picture->data[1] = NULL;
453 picture->data[2] = NULL;
454 picture->linesize[0] = width * 2;
456 case PIX_FMT_UYVY422:
457 picture->data[0] = ptr;
458 picture->data[1] = NULL;
459 picture->data[2] = NULL;
460 picture->linesize[0] = width * 2;
462 case PIX_FMT_UYVY411:
463 picture->data[0] = ptr;
464 picture->data[1] = NULL;
465 picture->data[2] = NULL;
466 picture->linesize[0] = width + width/2;
467 return size + size/2;
470 case PIX_FMT_RGB4_BYTE:
471 case PIX_FMT_BGR4_BYTE:
473 picture->data[0] = ptr;
474 picture->data[1] = NULL;
475 picture->data[2] = NULL;
476 picture->linesize[0] = width;
480 picture->data[0] = ptr;
481 picture->data[1] = NULL;
482 picture->data[2] = NULL;
483 picture->linesize[0] = width / 2;
485 case PIX_FMT_MONOWHITE:
486 case PIX_FMT_MONOBLACK:
487 picture->data[0] = ptr;
488 picture->data[1] = NULL;
489 picture->data[2] = NULL;
490 picture->linesize[0] = (width + 7) >> 3;
491 return picture->linesize[0] * height;
493 size2 = (size + 3) & ~3;
494 picture->data[0] = ptr;
495 picture->data[1] = ptr + size2; /* palette is stored here as 256 32 bit words */
496 picture->data[2] = NULL;
497 picture->linesize[0] = width;
498 picture->linesize[1] = 4;
499 return size2 + 256 * 4;
502 picture->data[0] = NULL;
503 picture->data[1] = NULL;
504 picture->data[2] = NULL;
505 picture->data[3] = NULL;
510 int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
511 unsigned char *dest, int dest_size)
513 const PixFmtInfo* pf = &pix_fmt_info[pix_fmt];
514 int i, j, w, h, data_planes;
515 const unsigned char* s;
516 int size = avpicture_get_size(pix_fmt, width, height);
518 if (size > dest_size || size < 0)
521 if (pf->pixel_type == FF_PIXEL_PACKED || pf->pixel_type == FF_PIXEL_PALETTE) {
522 if (pix_fmt == PIX_FMT_YUV422 ||
523 pix_fmt == PIX_FMT_UYVY422 ||
524 pix_fmt == PIX_FMT_BGR565 ||
525 pix_fmt == PIX_FMT_BGR555 ||
526 pix_fmt == PIX_FMT_RGB565 ||
527 pix_fmt == PIX_FMT_RGB555)
529 else if (pix_fmt == PIX_FMT_UYVY411)
531 else if (pix_fmt == PIX_FMT_PAL8)
534 w = width * (pf->depth * pf->nb_channels / 8);
539 data_planes = pf->nb_channels;
540 w = (width*pf->depth + 7)/8;
544 for (i=0; i<data_planes; i++) {
546 w = width >> pf->x_chroma_shift;
547 h = height >> pf->y_chroma_shift;
553 s += src->linesize[i];
557 if (pf->pixel_type == FF_PIXEL_PALETTE)
558 memcpy((unsigned char *)(((size_t)dest + 3) & ~3), src->data[1], 256 * 4);
563 int avpicture_get_size(int pix_fmt, int width, int height)
565 AVPicture dummy_pict;
566 return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height);
570 * compute the loss when converting from a pixel format to another
572 int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
575 const PixFmtInfo *pf, *ps;
578 ps = &pix_fmt_info[src_pix_fmt];
579 pf = &pix_fmt_info[dst_pix_fmt];
583 pf = &pix_fmt_info[dst_pix_fmt];
584 if (pf->depth < ps->depth ||
585 (dst_pix_fmt == PIX_FMT_RGB555 && src_pix_fmt == PIX_FMT_RGB565))
586 loss |= FF_LOSS_DEPTH;
587 if (pf->x_chroma_shift > ps->x_chroma_shift ||
588 pf->y_chroma_shift > ps->y_chroma_shift)
589 loss |= FF_LOSS_RESOLUTION;
590 switch(pf->color_type) {
592 if (ps->color_type != FF_COLOR_RGB &&
593 ps->color_type != FF_COLOR_GRAY)
594 loss |= FF_LOSS_COLORSPACE;
597 if (ps->color_type != FF_COLOR_GRAY)
598 loss |= FF_LOSS_COLORSPACE;
601 if (ps->color_type != FF_COLOR_YUV)
602 loss |= FF_LOSS_COLORSPACE;
604 case FF_COLOR_YUV_JPEG:
605 if (ps->color_type != FF_COLOR_YUV_JPEG &&
606 ps->color_type != FF_COLOR_YUV &&
607 ps->color_type != FF_COLOR_GRAY)
608 loss |= FF_LOSS_COLORSPACE;
612 if (ps->color_type != pf->color_type)
613 loss |= FF_LOSS_COLORSPACE;
616 if (pf->color_type == FF_COLOR_GRAY &&
617 ps->color_type != FF_COLOR_GRAY)
618 loss |= FF_LOSS_CHROMA;
619 if (!pf->is_alpha && (ps->is_alpha && has_alpha))
620 loss |= FF_LOSS_ALPHA;
621 if (pf->pixel_type == FF_PIXEL_PALETTE &&
622 (ps->pixel_type != FF_PIXEL_PALETTE && ps->color_type != FF_COLOR_GRAY))
623 loss |= FF_LOSS_COLORQUANT;
627 static int avg_bits_per_pixel(int pix_fmt)
630 const PixFmtInfo *pf;
632 pf = &pix_fmt_info[pix_fmt];
633 switch(pf->pixel_type) {
634 case FF_PIXEL_PACKED:
637 case PIX_FMT_UYVY422:
644 case PIX_FMT_UYVY411:
648 bits = pf->depth * pf->nb_channels;
652 case FF_PIXEL_PLANAR:
653 if (pf->x_chroma_shift == 0 && pf->y_chroma_shift == 0) {
654 bits = pf->depth * pf->nb_channels;
656 bits = pf->depth + ((2 * pf->depth) >>
657 (pf->x_chroma_shift + pf->y_chroma_shift));
660 case FF_PIXEL_PALETTE:
670 static int avcodec_find_best_pix_fmt1(int pix_fmt_mask,
675 int dist, i, loss, min_dist, dst_pix_fmt;
677 /* find exact color match with smallest size */
679 min_dist = 0x7fffffff;
680 for(i = 0;i < PIX_FMT_NB; i++) {
681 if (pix_fmt_mask & (1 << i)) {
682 loss = avcodec_get_pix_fmt_loss(i, src_pix_fmt, has_alpha) & loss_mask;
684 dist = avg_bits_per_pixel(i);
685 if (dist < min_dist) {
696 * find best pixel format to convert to. Return -1 if none found
698 int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
699 int has_alpha, int *loss_ptr)
701 int dst_pix_fmt, loss_mask, i;
702 static const int loss_mask_order[] = {
703 ~0, /* no loss first */
706 ~(FF_LOSS_COLORSPACE | FF_LOSS_RESOLUTION),
712 /* try with successive loss */
715 loss_mask = loss_mask_order[i++];
716 dst_pix_fmt = avcodec_find_best_pix_fmt1(pix_fmt_mask, src_pix_fmt,
717 has_alpha, loss_mask);
718 if (dst_pix_fmt >= 0)
726 *loss_ptr = avcodec_get_pix_fmt_loss(dst_pix_fmt, src_pix_fmt, has_alpha);
730 void ff_img_copy_plane(uint8_t *dst, int dst_wrap,
731 const uint8_t *src, int src_wrap,
732 int width, int height)
736 for(;height > 0; height--) {
737 memcpy(dst, src, width);
744 * Copy image 'src' to 'dst'.
746 void img_copy(AVPicture *dst, const AVPicture *src,
747 int pix_fmt, int width, int height)
750 const PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
752 pf = &pix_fmt_info[pix_fmt];
753 switch(pf->pixel_type) {
754 case FF_PIXEL_PACKED:
757 case PIX_FMT_UYVY422:
764 case PIX_FMT_UYVY411:
768 bits = pf->depth * pf->nb_channels;
771 bwidth = (width * bits + 7) >> 3;
772 ff_img_copy_plane(dst->data[0], dst->linesize[0],
773 src->data[0], src->linesize[0],
776 case FF_PIXEL_PLANAR:
777 for(i = 0; i < pf->nb_channels; i++) {
781 if (i == 1 || i == 2) {
782 w >>= pf->x_chroma_shift;
783 h >>= pf->y_chroma_shift;
785 bwidth = (w * pf->depth + 7) >> 3;
786 ff_img_copy_plane(dst->data[i], dst->linesize[i],
787 src->data[i], src->linesize[i],
791 case FF_PIXEL_PALETTE:
792 ff_img_copy_plane(dst->data[0], dst->linesize[0],
793 src->data[0], src->linesize[0],
795 /* copy the palette */
796 ff_img_copy_plane(dst->data[1], dst->linesize[1],
797 src->data[1], src->linesize[1],
803 /* XXX: totally non optimized */
805 static void yuv422_to_yuv420p(AVPicture *dst, const AVPicture *src,
806 int width, int height)
808 const uint8_t *p, *p1;
809 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
817 for(;height >= 1; height -= 2) {
822 for(w = width; w >= 2; w -= 2) {
839 p1 += src->linesize[0];
840 lum1 += dst->linesize[0];
844 for(w = width; w >= 2; w -= 2) {
853 p1 += src->linesize[0];
854 lum1 += dst->linesize[0];
856 cb1 += dst->linesize[1];
857 cr1 += dst->linesize[2];
861 static void uyvy422_to_yuv420p(AVPicture *dst, const AVPicture *src,
862 int width, int height)
864 const uint8_t *p, *p1;
865 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
874 for(;height >= 1; height -= 2) {
879 for(w = width; w >= 2; w -= 2) {
896 p1 += src->linesize[0];
897 lum1 += dst->linesize[0];
901 for(w = width; w >= 2; w -= 2) {
910 p1 += src->linesize[0];
911 lum1 += dst->linesize[0];
913 cb1 += dst->linesize[1];
914 cr1 += dst->linesize[2];
919 static void uyvy422_to_yuv422p(AVPicture *dst, const AVPicture *src,
920 int width, int height)
922 const uint8_t *p, *p1;
923 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
930 for(;height > 0; height--) {
935 for(w = width; w >= 2; w -= 2) {
945 p1 += src->linesize[0];
946 lum1 += dst->linesize[0];
947 cb1 += dst->linesize[1];
948 cr1 += dst->linesize[2];
953 static void yuv422_to_yuv422p(AVPicture *dst, const AVPicture *src,
954 int width, int height)
956 const uint8_t *p, *p1;
957 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
964 for(;height > 0; height--) {
969 for(w = width; w >= 2; w -= 2) {
979 p1 += src->linesize[0];
980 lum1 += dst->linesize[0];
981 cb1 += dst->linesize[1];
982 cr1 += dst->linesize[2];
986 static void yuv422p_to_yuv422(AVPicture *dst, const AVPicture *src,
987 int width, int height)
990 const uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
997 for(;height > 0; height--) {
1002 for(w = width; w >= 2; w -= 2) {
1012 p1 += dst->linesize[0];
1013 lum1 += src->linesize[0];
1014 cb1 += src->linesize[1];
1015 cr1 += src->linesize[2];
1019 static void yuv422p_to_uyvy422(AVPicture *dst, const AVPicture *src,
1020 int width, int height)
1023 const uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
1027 lum1 = src->data[0];
1030 for(;height > 0; height--) {
1035 for(w = width; w >= 2; w -= 2) {
1045 p1 += dst->linesize[0];
1046 lum1 += src->linesize[0];
1047 cb1 += src->linesize[1];
1048 cr1 += src->linesize[2];
1052 static void uyvy411_to_yuv411p(AVPicture *dst, const AVPicture *src,
1053 int width, int height)
1055 const uint8_t *p, *p1;
1056 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
1060 lum1 = dst->data[0];
1063 for(;height > 0; height--) {
1068 for(w = width; w >= 4; w -= 4) {
1080 p1 += src->linesize[0];
1081 lum1 += dst->linesize[0];
1082 cb1 += dst->linesize[1];
1083 cr1 += dst->linesize[2];
1088 static void yuv420p_to_yuv422(AVPicture *dst, const AVPicture *src,
1089 int width, int height)
1092 uint8_t *line1, *line2, *linesrc = dst->data[0];
1093 uint8_t *lum1, *lum2, *lumsrc = src->data[0];
1094 uint8_t *cb1, *cb2 = src->data[1];
1095 uint8_t *cr1, *cr2 = src->data[2];
1097 for(h = height / 2; h--;) {
1099 line2 = linesrc + dst->linesize[0];
1102 lum2 = lumsrc + src->linesize[0];
1107 for(w = width / 2; w--;) {
1108 *line1++ = *lum1++; *line2++ = *lum2++;
1109 *line1++ = *line2++ = *cb1++;
1110 *line1++ = *lum1++; *line2++ = *lum2++;
1111 *line1++ = *line2++ = *cr1++;
1114 linesrc += dst->linesize[0] * 2;
1115 lumsrc += src->linesize[0] * 2;
1116 cb2 += src->linesize[1];
1117 cr2 += src->linesize[2];
1121 static void yuv420p_to_uyvy422(AVPicture *dst, const AVPicture *src,
1122 int width, int height)
1125 uint8_t *line1, *line2, *linesrc = dst->data[0];
1126 uint8_t *lum1, *lum2, *lumsrc = src->data[0];
1127 uint8_t *cb1, *cb2 = src->data[1];
1128 uint8_t *cr1, *cr2 = src->data[2];
1130 for(h = height / 2; h--;) {
1132 line2 = linesrc + dst->linesize[0];
1135 lum2 = lumsrc + src->linesize[0];
1140 for(w = width / 2; w--;) {
1141 *line1++ = *line2++ = *cb1++;
1142 *line1++ = *lum1++; *line2++ = *lum2++;
1143 *line1++ = *line2++ = *cr1++;
1144 *line1++ = *lum1++; *line2++ = *lum2++;
1147 linesrc += dst->linesize[0] * 2;
1148 lumsrc += src->linesize[0] * 2;
1149 cb2 += src->linesize[1];
1150 cr2 += src->linesize[2];
1154 #define SCALEBITS 10
1155 #define ONE_HALF (1 << (SCALEBITS - 1))
1156 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
1158 #define YUV_TO_RGB1_CCIR(cb1, cr1)\
1162 r_add = FIX(1.40200*255.0/224.0) * cr + ONE_HALF;\
1163 g_add = - FIX(0.34414*255.0/224.0) * cb - FIX(0.71414*255.0/224.0) * cr + \
1165 b_add = FIX(1.77200*255.0/224.0) * cb + ONE_HALF;\
1168 #define YUV_TO_RGB2_CCIR(r, g, b, y1)\
1170 y = ((y1) - 16) * FIX(255.0/219.0);\
1171 r = cm[(y + r_add) >> SCALEBITS];\
1172 g = cm[(y + g_add) >> SCALEBITS];\
1173 b = cm[(y + b_add) >> SCALEBITS];\
1176 #define YUV_TO_RGB1(cb1, cr1)\
1180 r_add = FIX(1.40200) * cr + ONE_HALF;\
1181 g_add = - FIX(0.34414) * cb - FIX(0.71414) * cr + ONE_HALF;\
1182 b_add = FIX(1.77200) * cb + ONE_HALF;\
1185 #define YUV_TO_RGB2(r, g, b, y1)\
1187 y = (y1) << SCALEBITS;\
1188 r = cm[(y + r_add) >> SCALEBITS];\
1189 g = cm[(y + g_add) >> SCALEBITS];\
1190 b = cm[(y + b_add) >> SCALEBITS];\
1193 #define Y_CCIR_TO_JPEG(y)\
1194 cm[((y) * FIX(255.0/219.0) + (ONE_HALF - 16 * FIX(255.0/219.0))) >> SCALEBITS]
1196 #define Y_JPEG_TO_CCIR(y)\
1197 (((y) * FIX(219.0/255.0) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
1199 #define C_CCIR_TO_JPEG(y)\
1200 cm[(((y) - 128) * FIX(127.0/112.0) + (ONE_HALF + (128 << SCALEBITS))) >> SCALEBITS]
1202 /* NOTE: the clamp is really necessary! */
1203 static inline int C_JPEG_TO_CCIR(int y) {
1204 y = (((y - 128) * FIX(112.0/127.0) + (ONE_HALF + (128 << SCALEBITS))) >> SCALEBITS);
1211 #define RGB_TO_Y(r, g, b) \
1212 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
1213 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
1215 #define RGB_TO_U(r1, g1, b1, shift)\
1216 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
1217 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
1219 #define RGB_TO_V(r1, g1, b1, shift)\
1220 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
1221 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
1223 #define RGB_TO_Y_CCIR(r, g, b) \
1224 ((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \
1225 FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
1227 #define RGB_TO_U_CCIR(r1, g1, b1, shift)\
1228 (((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \
1229 FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
1231 #define RGB_TO_V_CCIR(r1, g1, b1, shift)\
1232 (((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \
1233 FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
1235 static uint8_t y_ccir_to_jpeg[256];
1236 static uint8_t y_jpeg_to_ccir[256];
1237 static uint8_t c_ccir_to_jpeg[256];
1238 static uint8_t c_jpeg_to_ccir[256];
1240 /* init various conversion tables */
1241 static void img_convert_init(void)
1244 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
1246 for(i = 0;i < 256; i++) {
1247 y_ccir_to_jpeg[i] = Y_CCIR_TO_JPEG(i);
1248 y_jpeg_to_ccir[i] = Y_JPEG_TO_CCIR(i);
1249 c_ccir_to_jpeg[i] = C_CCIR_TO_JPEG(i);
1250 c_jpeg_to_ccir[i] = C_JPEG_TO_CCIR(i);
1254 /* apply to each pixel the given table */
1255 static void img_apply_table(uint8_t *dst, int dst_wrap,
1256 const uint8_t *src, int src_wrap,
1257 int width, int height, const uint8_t *table1)
1262 const uint8_t *table;
1265 for(;height > 0; height--) {
1289 /* XXX: use generic filter ? */
1290 /* XXX: in most cases, the sampling position is incorrect */
1293 static void shrink41(uint8_t *dst, int dst_wrap,
1294 const uint8_t *src, int src_wrap,
1295 int width, int height)
1301 for(;height > 0; height--) {
1304 for(w = width;w > 0; w--) {
1305 d[0] = (s[0] + s[1] + s[2] + s[3] + 2) >> 2;
1315 static void shrink21(uint8_t *dst, int dst_wrap,
1316 const uint8_t *src, int src_wrap,
1317 int width, int height)
1323 for(;height > 0; height--) {
1326 for(w = width;w > 0; w--) {
1327 d[0] = (s[0] + s[1]) >> 1;
1337 static void shrink12(uint8_t *dst, int dst_wrap,
1338 const uint8_t *src, int src_wrap,
1339 int width, int height)
1343 const uint8_t *s1, *s2;
1345 for(;height > 0; height--) {
1349 for(w = width;w >= 4; w-=4) {
1350 d[0] = (s1[0] + s2[0]) >> 1;
1351 d[1] = (s1[1] + s2[1]) >> 1;
1352 d[2] = (s1[2] + s2[2]) >> 1;
1353 d[3] = (s1[3] + s2[3]) >> 1;
1359 d[0] = (s1[0] + s2[0]) >> 1;
1364 src += 2 * src_wrap;
1370 void ff_shrink22(uint8_t *dst, int dst_wrap,
1371 const uint8_t *src, int src_wrap,
1372 int width, int height)
1375 const uint8_t *s1, *s2;
1378 for(;height > 0; height--) {
1382 for(w = width;w >= 4; w-=4) {
1383 d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2;
1384 d[1] = (s1[2] + s1[3] + s2[2] + s2[3] + 2) >> 2;
1385 d[2] = (s1[4] + s1[5] + s2[4] + s2[5] + 2) >> 2;
1386 d[3] = (s1[6] + s1[7] + s2[6] + s2[7] + 2) >> 2;
1392 d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2;
1397 src += 2 * src_wrap;
1403 void ff_shrink44(uint8_t *dst, int dst_wrap,
1404 const uint8_t *src, int src_wrap,
1405 int width, int height)
1408 const uint8_t *s1, *s2, *s3, *s4;
1411 for(;height > 0; height--) {
1417 for(w = width;w > 0; w--) {
1418 d[0] = (s1[0] + s1[1] + s1[2] + s1[3] +
1419 s2[0] + s2[1] + s2[2] + s2[3] +
1420 s3[0] + s3[1] + s3[2] + s3[3] +
1421 s4[0] + s4[1] + s4[2] + s4[3] + 8) >> 4;
1428 src += 4 * src_wrap;
1434 void ff_shrink88(uint8_t *dst, int dst_wrap,
1435 const uint8_t *src, int src_wrap,
1436 int width, int height)
1440 for(;height > 0; height--) {
1441 for(w = width;w > 0; w--) {
1444 tmp += src[0] + src[1] + src[2] + src[3] + src[4] + src[5] + src[6] + src[7];
1447 *(dst++) = (tmp + 32)>>6;
1448 src += 8 - 8*src_wrap;
1450 src += 8*src_wrap - 8*width;
1451 dst += dst_wrap - width;
1455 static void grow21_line(uint8_t *dst, const uint8_t *src,
1464 for(w = width;w >= 4; w-=4) {
1465 d[1] = d[0] = s1[0];
1466 d[3] = d[2] = s1[1];
1470 for(;w >= 2; w -= 2) {
1471 d[1] = d[0] = s1[0];
1475 /* only needed if width is not a multiple of two */
1476 /* XXX: veryfy that */
1482 static void grow41_line(uint8_t *dst, const uint8_t *src,
1491 for(w = width;w >= 4; w-=4) {
1503 static void grow21(uint8_t *dst, int dst_wrap,
1504 const uint8_t *src, int src_wrap,
1505 int width, int height)
1507 for(;height > 0; height--) {
1508 grow21_line(dst, src, width);
1515 static void grow22(uint8_t *dst, int dst_wrap,
1516 const uint8_t *src, int src_wrap,
1517 int width, int height)
1519 for(;height > 0; height--) {
1520 grow21_line(dst, src, width);
1528 static void grow41(uint8_t *dst, int dst_wrap,
1529 const uint8_t *src, int src_wrap,
1530 int width, int height)
1532 for(;height > 0; height--) {
1533 grow41_line(dst, src, width);
1540 static void grow44(uint8_t *dst, int dst_wrap,
1541 const uint8_t *src, int src_wrap,
1542 int width, int height)
1544 for(;height > 0; height--) {
1545 grow41_line(dst, src, width);
1546 if ((height & 3) == 1)
1553 static void conv411(uint8_t *dst, int dst_wrap,
1554 const uint8_t *src, int src_wrap,
1555 int width, int height)
1558 const uint8_t *s1, *s2;
1563 for(;height > 0; height--) {
1565 s2 = src + src_wrap;
1567 for(w = width;w > 0; w--) {
1568 c = (s1[0] + s2[0]) >> 1;
1575 src += src_wrap * 2;
1580 /* XXX: add jpeg quantize code */
1582 #define TRANSP_INDEX (6*6*6)
1584 /* this is maybe slow, but allows for extensions */
1585 static inline unsigned char gif_clut_index(uint8_t r, uint8_t g, uint8_t b)
1587 return ((((r)/47)%6)*6*6+(((g)/47)%6)*6+(((b)/47)%6));
1590 static void build_rgb_palette(uint8_t *palette, int has_alpha)
1593 static const uint8_t pal_value[6] = { 0x00, 0x33, 0x66, 0x99, 0xcc, 0xff };
1596 pal = (uint32_t *)palette;
1598 for(r = 0; r < 6; r++) {
1599 for(g = 0; g < 6; g++) {
1600 for(b = 0; b < 6; b++) {
1601 pal[i++] = (0xff << 24) | (pal_value[r] << 16) |
1602 (pal_value[g] << 8) | pal_value[b];
1609 pal[i++] = 0xff000000;
1612 /* copy bit n to bits 0 ... n - 1 */
1613 static inline unsigned int bitcopy_n(unsigned int a, int n)
1616 mask = (1 << n) - 1;
1617 return (a & (0xff & ~mask)) | ((-((a >> n) & 1)) & mask);
1620 /* rgb555 handling */
1622 #define RGB_NAME rgb555
1624 #define RGB_IN(r, g, b, s)\
1626 unsigned int v = ((const uint16_t *)(s))[0];\
1627 r = bitcopy_n(v >> (10 - 3), 3);\
1628 g = bitcopy_n(v >> (5 - 3), 3);\
1629 b = bitcopy_n(v << 3, 3);\
1633 #define RGB_OUT(d, r, g, b)\
1635 ((uint16_t *)(d))[0] = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3);\
1640 #include "imgconvert_template.h"
1642 /* rgb565 handling */
1644 #define RGB_NAME rgb565
1646 #define RGB_IN(r, g, b, s)\
1648 unsigned int v = ((const uint16_t *)(s))[0];\
1649 r = bitcopy_n(v >> (11 - 3), 3);\
1650 g = bitcopy_n(v >> (5 - 2), 2);\
1651 b = bitcopy_n(v << 3, 3);\
1654 #define RGB_OUT(d, r, g, b)\
1656 ((uint16_t *)(d))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);\
1661 #include "imgconvert_template.h"
1663 /* bgr24 handling */
1665 #define RGB_NAME bgr24
1667 #define RGB_IN(r, g, b, s)\
1674 #define RGB_OUT(d, r, g, b)\
1683 #include "imgconvert_template.h"
1689 /* rgb24 handling */
1691 #define RGB_NAME rgb24
1694 #define RGB_IN(r, g, b, s)\
1701 #define RGB_OUT(d, r, g, b)\
1710 #include "imgconvert_template.h"
1712 /* rgba32 handling */
1714 #define RGB_NAME rgba32
1717 #define RGB_IN(r, g, b, s)\
1719 unsigned int v = ((const uint32_t *)(s))[0];\
1720 r = (v >> 16) & 0xff;\
1721 g = (v >> 8) & 0xff;\
1725 #define RGBA_IN(r, g, b, a, s)\
1727 unsigned int v = ((const uint32_t *)(s))[0];\
1728 a = (v >> 24) & 0xff;\
1729 r = (v >> 16) & 0xff;\
1730 g = (v >> 8) & 0xff;\
1734 #define RGBA_OUT(d, r, g, b, a)\
1736 ((uint32_t *)(d))[0] = (a << 24) | (r << 16) | (g << 8) | b;\
1741 #include "imgconvert_template.h"
1743 static void mono_to_gray(AVPicture *dst, const AVPicture *src,
1744 int width, int height, int xor_mask)
1746 const unsigned char *p;
1748 int v, dst_wrap, src_wrap;
1752 src_wrap = src->linesize[0] - ((width + 7) >> 3);
1755 dst_wrap = dst->linesize[0] - width;
1756 for(y=0;y<height;y++) {
1759 v = *p++ ^ xor_mask;
1761 q[1] = -((v >> 6) & 1);
1762 q[2] = -((v >> 5) & 1);
1763 q[3] = -((v >> 4) & 1);
1764 q[4] = -((v >> 3) & 1);
1765 q[5] = -((v >> 2) & 1);
1766 q[6] = -((v >> 1) & 1);
1767 q[7] = -((v >> 0) & 1);
1772 v = *p++ ^ xor_mask;
1774 q[0] = -((v >> 7) & 1);
1784 static void monowhite_to_gray(AVPicture *dst, const AVPicture *src,
1785 int width, int height)
1787 mono_to_gray(dst, src, width, height, 0xff);
1790 static void monoblack_to_gray(AVPicture *dst, const AVPicture *src,
1791 int width, int height)
1793 mono_to_gray(dst, src, width, height, 0x00);
1796 static void gray_to_mono(AVPicture *dst, const AVPicture *src,
1797 int width, int height, int xor_mask)
1802 int j, b, v, n1, src_wrap, dst_wrap, y;
1805 src_wrap = src->linesize[0] - width;
1808 dst_wrap = dst->linesize[0] - ((width + 7) >> 3);
1810 for(y=0;y<height;y++) {
1817 v = (v << 1) | (b >> 7);
1819 d[0] = v ^ xor_mask;
1829 v = (v << 1) | (b >> 7);
1832 d[0] = (v << (8 - (n1 & 7))) ^ xor_mask;
1840 static void gray_to_monowhite(AVPicture *dst, const AVPicture *src,
1841 int width, int height)
1843 gray_to_mono(dst, src, width, height, 0xff);
1846 static void gray_to_monoblack(AVPicture *dst, const AVPicture *src,
1847 int width, int height)
1849 gray_to_mono(dst, src, width, height, 0x00);
1852 static void gray_to_gray16(AVPicture *dst, const AVPicture *src,
1853 int width, int height)
1855 int x, y, src_wrap, dst_wrap;
1858 src_wrap = src->linesize[0] - width;
1860 dst_wrap = dst->linesize[0] - width * 2;
1861 for(y=0; y<height; y++){
1862 for(x=0; x<width; x++){
1871 static void gray16_to_gray(AVPicture *dst, const AVPicture *src,
1872 int width, int height)
1874 int x, y, src_wrap, dst_wrap;
1877 src_wrap = src->linesize[0] - width * 2;
1879 dst_wrap = dst->linesize[0] - width;
1880 for(y=0; y<height; y++){
1881 for(x=0; x<width; x++){
1890 static void gray16be_to_gray(AVPicture *dst, const AVPicture *src,
1891 int width, int height)
1893 gray16_to_gray(dst, src, width, height);
1896 static void gray16le_to_gray(AVPicture *dst, const AVPicture *src,
1897 int width, int height)
1899 gray16_to_gray(dst, src + 1, width, height);
1902 static void gray16_to_gray16(AVPicture *dst, const AVPicture *src,
1903 int width, int height)
1905 int x, y, src_wrap, dst_wrap;
1908 src_wrap = (src->linesize[0] - width * 2)/2;
1910 dst_wrap = (dst->linesize[0] - width * 2)/2;
1911 for(y=0; y<height; y++){
1912 for(x=0; x<width; x++){
1913 *d++ = bswap_16(*s++);
1921 typedef struct ConvertEntry {
1922 void (*convert)(AVPicture *dst,
1923 const AVPicture *src, int width, int height);
1926 /* Add each new convertion function in this table. In order to be able
1927 to convert from any format to any format, the following constraints
1930 - all FF_COLOR_RGB formats must convert to and from PIX_FMT_RGB24
1932 - all FF_COLOR_GRAY formats must convert to and from PIX_FMT_GRAY8
1934 - all FF_COLOR_RGB formats with alpha must convert to and from PIX_FMT_RGBA32
1936 - PIX_FMT_YUV444P and PIX_FMT_YUVJ444P must convert to and from
1939 - PIX_FMT_422 must convert to and from PIX_FMT_422P.
1941 The other conversion functions are just optimisations for common cases.
1943 static const ConvertEntry convert_table[PIX_FMT_NB][PIX_FMT_NB] = {
1944 [PIX_FMT_YUV420P] = {
1945 [PIX_FMT_YUV422] = {
1946 .convert = yuv420p_to_yuv422,
1948 [PIX_FMT_RGB555] = {
1949 .convert = yuv420p_to_rgb555
1951 [PIX_FMT_RGB565] = {
1952 .convert = yuv420p_to_rgb565
1955 .convert = yuv420p_to_bgr24
1958 .convert = yuv420p_to_rgb24
1960 [PIX_FMT_RGBA32] = {
1961 .convert = yuv420p_to_rgba32
1963 [PIX_FMT_UYVY422] = {
1964 .convert = yuv420p_to_uyvy422,
1967 [PIX_FMT_YUV422P] = {
1968 [PIX_FMT_YUV422] = {
1969 .convert = yuv422p_to_yuv422,
1971 [PIX_FMT_UYVY422] = {
1972 .convert = yuv422p_to_uyvy422,
1975 [PIX_FMT_YUV444P] = {
1977 .convert = yuv444p_to_rgb24
1980 [PIX_FMT_YUVJ420P] = {
1981 [PIX_FMT_RGB555] = {
1982 .convert = yuvj420p_to_rgb555
1984 [PIX_FMT_RGB565] = {
1985 .convert = yuvj420p_to_rgb565
1988 .convert = yuvj420p_to_bgr24
1991 .convert = yuvj420p_to_rgb24
1993 [PIX_FMT_RGBA32] = {
1994 .convert = yuvj420p_to_rgba32
1997 [PIX_FMT_YUVJ444P] = {
1999 .convert = yuvj444p_to_rgb24
2002 [PIX_FMT_YUV422] = {
2003 [PIX_FMT_YUV420P] = {
2004 .convert = yuv422_to_yuv420p,
2006 [PIX_FMT_YUV422P] = {
2007 .convert = yuv422_to_yuv422p,
2010 [PIX_FMT_UYVY422] = {
2011 [PIX_FMT_YUV420P] = {
2012 .convert = uyvy422_to_yuv420p,
2014 [PIX_FMT_YUV422P] = {
2015 .convert = uyvy422_to_yuv422p,
2019 [PIX_FMT_YUV420P] = {
2020 .convert = rgb24_to_yuv420p
2022 [PIX_FMT_RGB565] = {
2023 .convert = rgb24_to_rgb565
2025 [PIX_FMT_RGB555] = {
2026 .convert = rgb24_to_rgb555
2028 [PIX_FMT_RGBA32] = {
2029 .convert = rgb24_to_rgba32
2032 .convert = rgb24_to_bgr24
2035 .convert = rgb24_to_gray
2038 .convert = rgb24_to_pal8
2040 [PIX_FMT_YUV444P] = {
2041 .convert = rgb24_to_yuv444p
2043 [PIX_FMT_YUVJ420P] = {
2044 .convert = rgb24_to_yuvj420p
2046 [PIX_FMT_YUVJ444P] = {
2047 .convert = rgb24_to_yuvj444p
2050 [PIX_FMT_RGBA32] = {
2052 .convert = rgba32_to_rgb24
2055 .convert = rgba32_to_bgr24
2057 [PIX_FMT_RGB565] = {
2058 .convert = rgba32_to_rgb565
2060 [PIX_FMT_RGB555] = {
2061 .convert = rgba32_to_rgb555
2064 .convert = rgba32_to_pal8
2066 [PIX_FMT_YUV420P] = {
2067 .convert = rgba32_to_yuv420p
2070 .convert = rgba32_to_gray
2074 [PIX_FMT_RGBA32] = {
2075 .convert = bgr24_to_rgba32
2078 .convert = bgr24_to_rgb24
2080 [PIX_FMT_YUV420P] = {
2081 .convert = bgr24_to_yuv420p
2084 .convert = bgr24_to_gray
2087 [PIX_FMT_RGB555] = {
2089 .convert = rgb555_to_rgb24
2091 [PIX_FMT_RGBA32] = {
2092 .convert = rgb555_to_rgba32
2094 [PIX_FMT_YUV420P] = {
2095 .convert = rgb555_to_yuv420p
2098 .convert = rgb555_to_gray
2101 [PIX_FMT_RGB565] = {
2102 [PIX_FMT_RGBA32] = {
2103 .convert = rgb565_to_rgba32
2106 .convert = rgb565_to_rgb24
2108 [PIX_FMT_YUV420P] = {
2109 .convert = rgb565_to_yuv420p
2112 .convert = rgb565_to_gray
2115 [PIX_FMT_GRAY16BE] = {
2117 .convert = gray16be_to_gray
2119 [PIX_FMT_GRAY16LE] = {
2120 .convert = gray16_to_gray16
2123 [PIX_FMT_GRAY16LE] = {
2125 .convert = gray16le_to_gray
2127 [PIX_FMT_GRAY16BE] = {
2128 .convert = gray16_to_gray16
2132 [PIX_FMT_RGB555] = {
2133 .convert = gray_to_rgb555
2135 [PIX_FMT_RGB565] = {
2136 .convert = gray_to_rgb565
2139 .convert = gray_to_rgb24
2142 .convert = gray_to_bgr24
2144 [PIX_FMT_RGBA32] = {
2145 .convert = gray_to_rgba32
2147 [PIX_FMT_MONOWHITE] = {
2148 .convert = gray_to_monowhite
2150 [PIX_FMT_MONOBLACK] = {
2151 .convert = gray_to_monoblack
2153 [PIX_FMT_GRAY16LE] = {
2154 .convert = gray_to_gray16
2156 [PIX_FMT_GRAY16BE] = {
2157 .convert = gray_to_gray16
2160 [PIX_FMT_MONOWHITE] = {
2162 .convert = monowhite_to_gray
2165 [PIX_FMT_MONOBLACK] = {
2167 .convert = monoblack_to_gray
2171 [PIX_FMT_RGB555] = {
2172 .convert = pal8_to_rgb555
2174 [PIX_FMT_RGB565] = {
2175 .convert = pal8_to_rgb565
2178 .convert = pal8_to_bgr24
2181 .convert = pal8_to_rgb24
2183 [PIX_FMT_RGBA32] = {
2184 .convert = pal8_to_rgba32
2187 [PIX_FMT_UYVY411] = {
2188 [PIX_FMT_YUV411P] = {
2189 .convert = uyvy411_to_yuv411p,
2195 int avpicture_alloc(AVPicture *picture,
2196 int pix_fmt, int width, int height)
2201 size = avpicture_get_size(pix_fmt, width, height);
2204 ptr = av_malloc(size);
2207 avpicture_fill(picture, ptr, pix_fmt, width, height);
2210 memset(picture, 0, sizeof(AVPicture));
2214 void avpicture_free(AVPicture *picture)
2216 av_free(picture->data[0]);
2219 /* return true if yuv planar */
2220 static inline int is_yuv_planar(const PixFmtInfo *ps)
2222 return (ps->color_type == FF_COLOR_YUV ||
2223 ps->color_type == FF_COLOR_YUV_JPEG) &&
2224 ps->pixel_type == FF_PIXEL_PLANAR;
2228 * Crop image top and left side
2230 int img_crop(AVPicture *dst, const AVPicture *src,
2231 int pix_fmt, int top_band, int left_band)
2236 if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB || !is_yuv_planar(&pix_fmt_info[pix_fmt]))
2239 y_shift = pix_fmt_info[pix_fmt].y_chroma_shift;
2240 x_shift = pix_fmt_info[pix_fmt].x_chroma_shift;
2242 dst->data[0] = src->data[0] + (top_band * src->linesize[0]) + left_band;
2243 dst->data[1] = src->data[1] + ((top_band >> y_shift) * src->linesize[1]) + (left_band >> x_shift);
2244 dst->data[2] = src->data[2] + ((top_band >> y_shift) * src->linesize[2]) + (left_band >> x_shift);
2246 dst->linesize[0] = src->linesize[0];
2247 dst->linesize[1] = src->linesize[1];
2248 dst->linesize[2] = src->linesize[2];
2255 int img_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt,
2256 int padtop, int padbottom, int padleft, int padright, int *color)
2258 uint8_t *optr, *iptr;
2264 if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB || !is_yuv_planar(&pix_fmt_info[pix_fmt]))
2267 for (i = 0; i < 3; i++) {
2268 x_shift = i ? pix_fmt_info[pix_fmt].x_chroma_shift : 0;
2269 y_shift = i ? pix_fmt_info[pix_fmt].y_chroma_shift : 0;
2271 if (padtop || padleft) {
2272 memset(dst->data[i], color[i], dst->linesize[i] * (padtop >> y_shift) + (padleft >> x_shift));
2275 if (padleft || padright || src) {
2276 if (src) { /* first line */
2277 iptr = src->data[i];
2278 optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) + (padleft >> x_shift);
2279 memcpy(optr, iptr, src->linesize[i]);
2280 iptr += src->linesize[i];
2282 optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) + (dst->linesize[i] - (padright >> x_shift));
2283 yheight = (height - 1 - (padtop + padbottom)) >> y_shift;
2284 for (y = 0; y < yheight; y++) {
2285 memset(optr, color[i], (padleft + padright) >> x_shift);
2287 memcpy(optr + ((padleft + padright) >> x_shift), iptr, src->linesize[i]);
2288 iptr += src->linesize[i];
2290 optr += dst->linesize[i];
2294 if (padbottom || padright) {
2295 optr = dst->data[i] + dst->linesize[i] * ((height - padbottom) >> y_shift) - (padright >> x_shift);
2296 memset(optr, color[i], dst->linesize[i] * (padbottom >> y_shift) + (padright >> x_shift));
2302 #ifndef CONFIG_SWSCALER
2303 /* XXX: always use linesize. Return -1 if not supported */
2304 int img_convert(AVPicture *dst, int dst_pix_fmt,
2305 const AVPicture *src, int src_pix_fmt,
2306 int src_width, int src_height)
2309 int i, ret, dst_width, dst_height, int_pix_fmt;
2310 const PixFmtInfo *src_pix, *dst_pix;
2311 const ConvertEntry *ce;
2312 AVPicture tmp1, *tmp = &tmp1;
2314 if (src_pix_fmt < 0 || src_pix_fmt >= PIX_FMT_NB ||
2315 dst_pix_fmt < 0 || dst_pix_fmt >= PIX_FMT_NB)
2317 if (src_width <= 0 || src_height <= 0)
2325 dst_width = src_width;
2326 dst_height = src_height;
2328 dst_pix = &pix_fmt_info[dst_pix_fmt];
2329 src_pix = &pix_fmt_info[src_pix_fmt];
2330 if (src_pix_fmt == dst_pix_fmt) {
2331 /* no conversion needed: just copy */
2332 img_copy(dst, src, dst_pix_fmt, dst_width, dst_height);
2336 ce = &convert_table[src_pix_fmt][dst_pix_fmt];
2338 /* specific conversion routine */
2339 ce->convert(dst, src, dst_width, dst_height);
2344 if (is_yuv_planar(dst_pix) &&
2345 src_pix_fmt == PIX_FMT_GRAY8) {
2349 if (dst_pix->color_type == FF_COLOR_YUV_JPEG) {
2350 ff_img_copy_plane(dst->data[0], dst->linesize[0],
2351 src->data[0], src->linesize[0],
2352 dst_width, dst_height);
2354 img_apply_table(dst->data[0], dst->linesize[0],
2355 src->data[0], src->linesize[0],
2356 dst_width, dst_height,
2359 /* fill U and V with 128 */
2362 w >>= dst_pix->x_chroma_shift;
2363 h >>= dst_pix->y_chroma_shift;
2364 for(i = 1; i <= 2; i++) {
2366 for(y = 0; y< h; y++) {
2368 d += dst->linesize[i];
2375 if (is_yuv_planar(src_pix) &&
2376 dst_pix_fmt == PIX_FMT_GRAY8) {
2377 if (src_pix->color_type == FF_COLOR_YUV_JPEG) {
2378 ff_img_copy_plane(dst->data[0], dst->linesize[0],
2379 src->data[0], src->linesize[0],
2380 dst_width, dst_height);
2382 img_apply_table(dst->data[0], dst->linesize[0],
2383 src->data[0], src->linesize[0],
2384 dst_width, dst_height,
2390 /* YUV to YUV planar */
2391 if (is_yuv_planar(dst_pix) && is_yuv_planar(src_pix)) {
2392 int x_shift, y_shift, w, h, xy_shift;
2393 void (*resize_func)(uint8_t *dst, int dst_wrap,
2394 const uint8_t *src, int src_wrap,
2395 int width, int height);
2397 /* compute chroma size of the smallest dimensions */
2400 if (dst_pix->x_chroma_shift >= src_pix->x_chroma_shift)
2401 w >>= dst_pix->x_chroma_shift;
2403 w >>= src_pix->x_chroma_shift;
2404 if (dst_pix->y_chroma_shift >= src_pix->y_chroma_shift)
2405 h >>= dst_pix->y_chroma_shift;
2407 h >>= src_pix->y_chroma_shift;
2409 x_shift = (dst_pix->x_chroma_shift - src_pix->x_chroma_shift);
2410 y_shift = (dst_pix->y_chroma_shift - src_pix->y_chroma_shift);
2411 xy_shift = ((x_shift & 0xf) << 4) | (y_shift & 0xf);
2412 /* there must be filters for conversion at least from and to
2416 resize_func = ff_img_copy_plane;
2419 resize_func = shrink21;
2422 resize_func = shrink41;
2425 resize_func = shrink12;
2428 resize_func = ff_shrink22;
2431 resize_func = ff_shrink44;
2434 resize_func = grow21;
2437 resize_func = grow41;
2440 resize_func = grow22;
2443 resize_func = grow44;
2446 resize_func = conv411;
2449 /* currently not handled */
2450 goto no_chroma_filter;
2453 ff_img_copy_plane(dst->data[0], dst->linesize[0],
2454 src->data[0], src->linesize[0],
2455 dst_width, dst_height);
2457 for(i = 1;i <= 2; i++)
2458 resize_func(dst->data[i], dst->linesize[i],
2459 src->data[i], src->linesize[i],
2460 dst_width>>dst_pix->x_chroma_shift, dst_height>>dst_pix->y_chroma_shift);
2461 /* if yuv color space conversion is needed, we do it here on
2462 the destination image */
2463 if (dst_pix->color_type != src_pix->color_type) {
2464 const uint8_t *y_table, *c_table;
2465 if (dst_pix->color_type == FF_COLOR_YUV) {
2466 y_table = y_jpeg_to_ccir;
2467 c_table = c_jpeg_to_ccir;
2469 y_table = y_ccir_to_jpeg;
2470 c_table = c_ccir_to_jpeg;
2472 img_apply_table(dst->data[0], dst->linesize[0],
2473 dst->data[0], dst->linesize[0],
2474 dst_width, dst_height,
2477 for(i = 1;i <= 2; i++)
2478 img_apply_table(dst->data[i], dst->linesize[i],
2479 dst->data[i], dst->linesize[i],
2480 dst_width>>dst_pix->x_chroma_shift,
2481 dst_height>>dst_pix->y_chroma_shift,
2488 /* try to use an intermediate format */
2489 if (src_pix_fmt == PIX_FMT_YUV422 ||
2490 dst_pix_fmt == PIX_FMT_YUV422) {
2491 /* specific case: convert to YUV422P first */
2492 int_pix_fmt = PIX_FMT_YUV422P;
2493 } else if (src_pix_fmt == PIX_FMT_UYVY422 ||
2494 dst_pix_fmt == PIX_FMT_UYVY422) {
2495 /* specific case: convert to YUV422P first */
2496 int_pix_fmt = PIX_FMT_YUV422P;
2497 } else if (src_pix_fmt == PIX_FMT_UYVY411 ||
2498 dst_pix_fmt == PIX_FMT_UYVY411) {
2499 /* specific case: convert to YUV411P first */
2500 int_pix_fmt = PIX_FMT_YUV411P;
2501 } else if ((src_pix->color_type == FF_COLOR_GRAY &&
2502 src_pix_fmt != PIX_FMT_GRAY8) ||
2503 (dst_pix->color_type == FF_COLOR_GRAY &&
2504 dst_pix_fmt != PIX_FMT_GRAY8)) {
2505 /* gray8 is the normalized format */
2506 int_pix_fmt = PIX_FMT_GRAY8;
2507 } else if ((is_yuv_planar(src_pix) &&
2508 src_pix_fmt != PIX_FMT_YUV444P &&
2509 src_pix_fmt != PIX_FMT_YUVJ444P)) {
2510 /* yuv444 is the normalized format */
2511 if (src_pix->color_type == FF_COLOR_YUV_JPEG)
2512 int_pix_fmt = PIX_FMT_YUVJ444P;
2514 int_pix_fmt = PIX_FMT_YUV444P;
2515 } else if ((is_yuv_planar(dst_pix) &&
2516 dst_pix_fmt != PIX_FMT_YUV444P &&
2517 dst_pix_fmt != PIX_FMT_YUVJ444P)) {
2518 /* yuv444 is the normalized format */
2519 if (dst_pix->color_type == FF_COLOR_YUV_JPEG)
2520 int_pix_fmt = PIX_FMT_YUVJ444P;
2522 int_pix_fmt = PIX_FMT_YUV444P;
2524 /* the two formats are rgb or gray8 or yuv[j]444p */
2525 if (src_pix->is_alpha && dst_pix->is_alpha)
2526 int_pix_fmt = PIX_FMT_RGBA32;
2528 int_pix_fmt = PIX_FMT_RGB24;
2530 if (avpicture_alloc(tmp, int_pix_fmt, dst_width, dst_height) < 0)
2533 if (img_convert(tmp, int_pix_fmt,
2534 src, src_pix_fmt, src_width, src_height) < 0)
2536 if (img_convert(dst, dst_pix_fmt,
2537 tmp, int_pix_fmt, dst_width, dst_height) < 0)
2541 avpicture_free(tmp);
2546 /* NOTE: we scan all the pixels to have an exact information */
2547 static int get_alpha_info_pal8(const AVPicture *src, int width, int height)
2549 const unsigned char *p;
2550 int src_wrap, ret, x, y;
2552 uint32_t *palette = (uint32_t *)src->data[1];
2555 src_wrap = src->linesize[0] - width;
2557 for(y=0;y<height;y++) {
2558 for(x=0;x<width;x++) {
2559 a = palette[p[0]] >> 24;
2561 ret |= FF_ALPHA_TRANSP;
2562 } else if (a != 0xff) {
2563 ret |= FF_ALPHA_SEMI_TRANSP;
2573 * Tell if an image really has transparent alpha values.
2574 * @return ored mask of FF_ALPHA_xxx constants
2576 int img_get_alpha_info(const AVPicture *src,
2577 int pix_fmt, int width, int height)
2579 const PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
2582 pf = &pix_fmt_info[pix_fmt];
2583 /* no alpha can be represented in format */
2587 case PIX_FMT_RGBA32:
2588 ret = get_alpha_info_rgba32(src, width, height);
2591 ret = get_alpha_info_pal8(src, width, height);
2594 /* we do not know, so everything is indicated */
2595 ret = FF_ALPHA_TRANSP | FF_ALPHA_SEMI_TRANSP;
2602 #define DEINT_INPLACE_LINE_LUM \
2603 movd_m2r(lum_m4[0],mm0);\
2604 movd_m2r(lum_m3[0],mm1);\
2605 movd_m2r(lum_m2[0],mm2);\
2606 movd_m2r(lum_m1[0],mm3);\
2607 movd_m2r(lum[0],mm4);\
2608 punpcklbw_r2r(mm7,mm0);\
2609 movd_r2m(mm2,lum_m4[0]);\
2610 punpcklbw_r2r(mm7,mm1);\
2611 punpcklbw_r2r(mm7,mm2);\
2612 punpcklbw_r2r(mm7,mm3);\
2613 punpcklbw_r2r(mm7,mm4);\
2614 paddw_r2r(mm3,mm1);\
2616 paddw_r2r(mm4,mm0);\
2618 paddw_r2r(mm6,mm2);\
2619 paddw_r2r(mm2,mm1);\
2620 psubusw_r2r(mm0,mm1);\
2622 packuswb_r2r(mm7,mm1);\
2623 movd_r2m(mm1,lum_m2[0]);
2625 #define DEINT_LINE_LUM \
2626 movd_m2r(lum_m4[0],mm0);\
2627 movd_m2r(lum_m3[0],mm1);\
2628 movd_m2r(lum_m2[0],mm2);\
2629 movd_m2r(lum_m1[0],mm3);\
2630 movd_m2r(lum[0],mm4);\
2631 punpcklbw_r2r(mm7,mm0);\
2632 punpcklbw_r2r(mm7,mm1);\
2633 punpcklbw_r2r(mm7,mm2);\
2634 punpcklbw_r2r(mm7,mm3);\
2635 punpcklbw_r2r(mm7,mm4);\
2636 paddw_r2r(mm3,mm1);\
2638 paddw_r2r(mm4,mm0);\
2640 paddw_r2r(mm6,mm2);\
2641 paddw_r2r(mm2,mm1);\
2642 psubusw_r2r(mm0,mm1);\
2644 packuswb_r2r(mm7,mm1);\
2645 movd_r2m(mm1,dst[0]);
2648 /* filter parameters: [-1 4 2 4 -1] // 8 */
2649 static void deinterlace_line(uint8_t *dst,
2650 const uint8_t *lum_m4, const uint8_t *lum_m3,
2651 const uint8_t *lum_m2, const uint8_t *lum_m1,
2656 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
2659 for(;size > 0;size--) {
2661 sum += lum_m3[0] << 2;
2662 sum += lum_m2[0] << 1;
2663 sum += lum_m1[0] << 2;
2665 dst[0] = cm[(sum + 4) >> 3];
2682 movq_m2r(rounder,mm6);
2684 for (;size > 3; size-=4) {
2695 static void deinterlace_line_inplace(uint8_t *lum_m4, uint8_t *lum_m3, uint8_t *lum_m2, uint8_t *lum_m1, uint8_t *lum,
2699 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
2702 for(;size > 0;size--) {
2704 sum += lum_m3[0] << 2;
2705 sum += lum_m2[0] << 1;
2706 lum_m4[0]=lum_m2[0];
2707 sum += lum_m1[0] << 2;
2709 lum_m2[0] = cm[(sum + 4) >> 3];
2725 movq_m2r(rounder,mm6);
2727 for (;size > 3; size-=4) {
2728 DEINT_INPLACE_LINE_LUM
2738 /* deinterlacing : 2 temporal taps, 3 spatial taps linear filter. The
2739 top field is copied as is, but the bottom field is deinterlaced
2740 against the top field. */
2741 static void deinterlace_bottom_field(uint8_t *dst, int dst_wrap,
2742 const uint8_t *src1, int src_wrap,
2743 int width, int height)
2745 const uint8_t *src_m2, *src_m1, *src_0, *src_p1, *src_p2;
2750 src_0=&src_m1[src_wrap];
2751 src_p1=&src_0[src_wrap];
2752 src_p2=&src_p1[src_wrap];
2753 for(y=0;y<(height-2);y+=2) {
2754 memcpy(dst,src_m1,width);
2756 deinterlace_line(dst,src_m2,src_m1,src_0,src_p1,src_p2,width);
2760 src_p1 += 2*src_wrap;
2761 src_p2 += 2*src_wrap;
2764 memcpy(dst,src_m1,width);
2767 deinterlace_line(dst,src_m2,src_m1,src_0,src_0,src_0,width);
2770 static void deinterlace_bottom_field_inplace(uint8_t *src1, int src_wrap,
2771 int width, int height)
2773 uint8_t *src_m1, *src_0, *src_p1, *src_p2;
2776 buf = (uint8_t*)av_malloc(width);
2779 memcpy(buf,src_m1,width);
2780 src_0=&src_m1[src_wrap];
2781 src_p1=&src_0[src_wrap];
2782 src_p2=&src_p1[src_wrap];
2783 for(y=0;y<(height-2);y+=2) {
2784 deinterlace_line_inplace(buf,src_m1,src_0,src_p1,src_p2,width);
2787 src_p1 += 2*src_wrap;
2788 src_p2 += 2*src_wrap;
2791 deinterlace_line_inplace(buf,src_m1,src_0,src_0,src_0,width);
2796 /* deinterlace - if not supported return -1 */
2797 int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2798 int pix_fmt, int width, int height)
2802 if (pix_fmt != PIX_FMT_YUV420P &&
2803 pix_fmt != PIX_FMT_YUV422P &&
2804 pix_fmt != PIX_FMT_YUV444P &&
2805 pix_fmt != PIX_FMT_YUV411P)
2807 if ((width & 3) != 0 || (height & 3) != 0)
2813 case PIX_FMT_YUV420P:
2817 case PIX_FMT_YUV422P:
2820 case PIX_FMT_YUV411P:
2828 deinterlace_bottom_field_inplace(dst->data[i], dst->linesize[i],
2831 deinterlace_bottom_field(dst->data[i],dst->linesize[i],
2832 src->data[i], src->linesize[i],