2 * Misc image conversion 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 conversion 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
35 #include "colorspace.h"
41 #define xglue(x, y) x ## y
42 #define glue(x, y) xglue(x, y)
44 #define FF_COLOR_RGB 0 /**< RGB color space */
45 #define FF_COLOR_GRAY 1 /**< gray color space */
46 #define FF_COLOR_YUV 2 /**< YUV color space. 16 <= Y <= 235, 16 <= U, V <= 240 */
47 #define FF_COLOR_YUV_JPEG 3 /**< YUV color space. 0 <= Y <= 255, 0 <= U, V <= 255 */
49 #define FF_PIXEL_PLANAR 0 /**< each channel has one component in AVPicture */
50 #define FF_PIXEL_PACKED 1 /**< only one components containing all the channels */
51 #define FF_PIXEL_PALETTE 2 /**< one components containing indexes for a palette */
53 typedef struct PixFmtInfo {
55 uint8_t nb_channels; /**< number of channels (including alpha) */
56 uint8_t color_type; /**< color type (see FF_COLOR_xxx constants) */
57 uint8_t pixel_type; /**< pixel storage type (see FF_PIXEL_xxx constants) */
58 uint8_t is_alpha : 1; /**< true if alpha can be specified */
59 uint8_t x_chroma_shift; /**< X chroma subsampling factor is 2 ^ shift */
60 uint8_t y_chroma_shift; /**< Y chroma subsampling factor is 2 ^ shift */
61 uint8_t depth; /**< bit depth of the color components */
64 /* this table gives more information about formats */
65 static const PixFmtInfo pix_fmt_info[PIX_FMT_NB] = {
70 .color_type = FF_COLOR_YUV,
71 .pixel_type = FF_PIXEL_PLANAR,
73 .x_chroma_shift = 1, .y_chroma_shift = 1,
78 .color_type = FF_COLOR_YUV,
79 .pixel_type = FF_PIXEL_PLANAR,
81 .x_chroma_shift = 1, .y_chroma_shift = 0,
86 .color_type = FF_COLOR_YUV,
87 .pixel_type = FF_PIXEL_PLANAR,
89 .x_chroma_shift = 0, .y_chroma_shift = 0,
94 .color_type = FF_COLOR_YUV,
95 .pixel_type = FF_PIXEL_PACKED,
97 .x_chroma_shift = 1, .y_chroma_shift = 0,
102 .color_type = FF_COLOR_YUV,
103 .pixel_type = FF_PIXEL_PACKED,
105 .x_chroma_shift = 1, .y_chroma_shift = 0,
107 [PIX_FMT_YUV410P] = {
110 .color_type = FF_COLOR_YUV,
111 .pixel_type = FF_PIXEL_PLANAR,
113 .x_chroma_shift = 2, .y_chroma_shift = 2,
115 [PIX_FMT_YUV411P] = {
118 .color_type = FF_COLOR_YUV,
119 .pixel_type = FF_PIXEL_PLANAR,
121 .x_chroma_shift = 2, .y_chroma_shift = 0,
123 [PIX_FMT_YUV440P] = {
126 .color_type = FF_COLOR_YUV,
127 .pixel_type = FF_PIXEL_PLANAR,
129 .x_chroma_shift = 0, .y_chroma_shift = 1,
132 /* YUV formats with alpha plane */
133 [PIX_FMT_YUVA420P] = {
136 .color_type = FF_COLOR_YUV,
137 .pixel_type = FF_PIXEL_PLANAR,
139 .x_chroma_shift = 1, .y_chroma_shift = 1,
143 [PIX_FMT_YUVJ420P] = {
146 .color_type = FF_COLOR_YUV_JPEG,
147 .pixel_type = FF_PIXEL_PLANAR,
149 .x_chroma_shift = 1, .y_chroma_shift = 1,
151 [PIX_FMT_YUVJ422P] = {
154 .color_type = FF_COLOR_YUV_JPEG,
155 .pixel_type = FF_PIXEL_PLANAR,
157 .x_chroma_shift = 1, .y_chroma_shift = 0,
159 [PIX_FMT_YUVJ444P] = {
162 .color_type = FF_COLOR_YUV_JPEG,
163 .pixel_type = FF_PIXEL_PLANAR,
165 .x_chroma_shift = 0, .y_chroma_shift = 0,
167 [PIX_FMT_YUVJ440P] = {
170 .color_type = FF_COLOR_YUV_JPEG,
171 .pixel_type = FF_PIXEL_PLANAR,
173 .x_chroma_shift = 0, .y_chroma_shift = 1,
180 .color_type = FF_COLOR_RGB,
181 .pixel_type = FF_PIXEL_PACKED,
183 .x_chroma_shift = 0, .y_chroma_shift = 0,
188 .color_type = FF_COLOR_RGB,
189 .pixel_type = FF_PIXEL_PACKED,
191 .x_chroma_shift = 0, .y_chroma_shift = 0,
195 .nb_channels = 4, .is_alpha = 1,
196 .color_type = FF_COLOR_RGB,
197 .pixel_type = FF_PIXEL_PACKED,
199 .x_chroma_shift = 0, .y_chroma_shift = 0,
204 .color_type = FF_COLOR_RGB,
205 .pixel_type = FF_PIXEL_PACKED,
207 .x_chroma_shift = 0, .y_chroma_shift = 0,
212 .color_type = FF_COLOR_RGB,
213 .pixel_type = FF_PIXEL_PACKED,
215 .x_chroma_shift = 0, .y_chroma_shift = 0,
218 /* gray / mono formats */
219 [PIX_FMT_GRAY16BE] = {
222 .color_type = FF_COLOR_GRAY,
223 .pixel_type = FF_PIXEL_PLANAR,
226 [PIX_FMT_GRAY16LE] = {
229 .color_type = FF_COLOR_GRAY,
230 .pixel_type = FF_PIXEL_PLANAR,
236 .color_type = FF_COLOR_GRAY,
237 .pixel_type = FF_PIXEL_PLANAR,
240 [PIX_FMT_MONOWHITE] = {
243 .color_type = FF_COLOR_GRAY,
244 .pixel_type = FF_PIXEL_PLANAR,
247 [PIX_FMT_MONOBLACK] = {
250 .color_type = FF_COLOR_GRAY,
251 .pixel_type = FF_PIXEL_PLANAR,
255 /* paletted formats */
258 .nb_channels = 4, .is_alpha = 1,
259 .color_type = FF_COLOR_RGB,
260 .pixel_type = FF_PIXEL_PALETTE,
263 [PIX_FMT_XVMC_MPEG2_MC] = {
266 [PIX_FMT_XVMC_MPEG2_IDCT] = {
269 [PIX_FMT_UYYVYY411] = {
272 .color_type = FF_COLOR_YUV,
273 .pixel_type = FF_PIXEL_PACKED,
275 .x_chroma_shift = 2, .y_chroma_shift = 0,
279 .nb_channels = 4, .is_alpha = 1,
280 .color_type = FF_COLOR_RGB,
281 .pixel_type = FF_PIXEL_PACKED,
283 .x_chroma_shift = 0, .y_chroma_shift = 0,
288 .color_type = FF_COLOR_RGB,
289 .pixel_type = FF_PIXEL_PACKED,
291 .x_chroma_shift = 0, .y_chroma_shift = 0,
296 .color_type = FF_COLOR_RGB,
297 .pixel_type = FF_PIXEL_PACKED,
299 .x_chroma_shift = 0, .y_chroma_shift = 0,
304 .color_type = FF_COLOR_RGB,
305 .pixel_type = FF_PIXEL_PACKED,
307 .x_chroma_shift = 0, .y_chroma_shift = 0,
312 .color_type = FF_COLOR_RGB,
313 .pixel_type = FF_PIXEL_PACKED,
315 .x_chroma_shift = 0, .y_chroma_shift = 0,
317 [PIX_FMT_RGB4_BYTE] = {
320 .color_type = FF_COLOR_RGB,
321 .pixel_type = FF_PIXEL_PACKED,
323 .x_chroma_shift = 0, .y_chroma_shift = 0,
328 .color_type = FF_COLOR_RGB,
329 .pixel_type = FF_PIXEL_PACKED,
331 .x_chroma_shift = 0, .y_chroma_shift = 0,
336 .color_type = FF_COLOR_RGB,
337 .pixel_type = FF_PIXEL_PACKED,
339 .x_chroma_shift = 0, .y_chroma_shift = 0,
341 [PIX_FMT_BGR4_BYTE] = {
344 .color_type = FF_COLOR_RGB,
345 .pixel_type = FF_PIXEL_PACKED,
347 .x_chroma_shift = 0, .y_chroma_shift = 0,
352 .color_type = FF_COLOR_YUV,
353 .pixel_type = FF_PIXEL_PLANAR,
355 .x_chroma_shift = 1, .y_chroma_shift = 1,
360 .color_type = FF_COLOR_YUV,
361 .pixel_type = FF_PIXEL_PLANAR,
363 .x_chroma_shift = 1, .y_chroma_shift = 1,
366 [PIX_FMT_BGR32_1] = {
368 .nb_channels = 4, .is_alpha = 1,
369 .color_type = FF_COLOR_RGB,
370 .pixel_type = FF_PIXEL_PACKED,
372 .x_chroma_shift = 0, .y_chroma_shift = 0,
374 [PIX_FMT_RGB32_1] = {
376 .nb_channels = 4, .is_alpha = 1,
377 .color_type = FF_COLOR_RGB,
378 .pixel_type = FF_PIXEL_PACKED,
380 .x_chroma_shift = 0, .y_chroma_shift = 0,
384 void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift)
386 *h_shift = pix_fmt_info[pix_fmt].x_chroma_shift;
387 *v_shift = pix_fmt_info[pix_fmt].y_chroma_shift;
390 const char *avcodec_get_pix_fmt_name(int pix_fmt)
392 if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB)
395 return pix_fmt_info[pix_fmt].name;
398 enum PixelFormat avcodec_get_pix_fmt(const char* name)
402 for (i=0; i < PIX_FMT_NB; i++)
403 if (!strcmp(pix_fmt_info[i].name, name))
408 void avcodec_pix_fmt_string (char *buf, int buf_size, int pix_fmt)
412 snprintf (buf, buf_size,
413 "name " " nb_channels" " depth" " is_alpha"
416 PixFmtInfo info= pix_fmt_info[pix_fmt];
418 char is_alpha_char= info.is_alpha ? 'y' : 'n';
420 snprintf (buf, buf_size,
421 "%-10s" " %1d " " %2d " " %c ",
430 int ff_fill_linesize(AVPicture *picture, int pix_fmt, int width)
433 const PixFmtInfo *pinfo;
435 memset(picture->linesize, 0, sizeof(picture->linesize));
437 pinfo = &pix_fmt_info[pix_fmt];
439 case PIX_FMT_YUV420P:
440 case PIX_FMT_YUV422P:
441 case PIX_FMT_YUV444P:
442 case PIX_FMT_YUV410P:
443 case PIX_FMT_YUV411P:
444 case PIX_FMT_YUV440P:
445 case PIX_FMT_YUVJ420P:
446 case PIX_FMT_YUVJ422P:
447 case PIX_FMT_YUVJ444P:
448 case PIX_FMT_YUVJ440P:
449 w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
450 picture->linesize[0] = width;
451 picture->linesize[1] = w2;
452 picture->linesize[2] = w2;
454 case PIX_FMT_YUVA420P:
455 w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
456 picture->linesize[0] = width;
457 picture->linesize[1] = w2;
458 picture->linesize[2] = w2;
459 picture->linesize[3] = width;
463 w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
464 picture->linesize[0] = width;
465 picture->linesize[1] = w2;
469 picture->linesize[0] = width * 3;
473 case PIX_FMT_RGB32_1:
474 case PIX_FMT_BGR32_1:
475 picture->linesize[0] = width * 4;
477 case PIX_FMT_GRAY16BE:
478 case PIX_FMT_GRAY16LE:
483 case PIX_FMT_YUYV422:
484 picture->linesize[0] = width * 2;
486 case PIX_FMT_UYVY422:
487 picture->linesize[0] = width * 2;
489 case PIX_FMT_UYYVYY411:
490 picture->linesize[0] = width + width/2;
494 case PIX_FMT_RGB4_BYTE:
495 case PIX_FMT_BGR4_BYTE:
497 picture->linesize[0] = width;
501 picture->linesize[0] = width / 2;
503 case PIX_FMT_MONOWHITE:
504 case PIX_FMT_MONOBLACK:
505 picture->linesize[0] = (width + 7) >> 3;
508 picture->linesize[0] = width;
509 picture->linesize[1] = 4;
517 int ff_fill_pointer(AVPicture *picture, uint8_t *ptr, int pix_fmt,
521 const PixFmtInfo *pinfo;
523 pinfo = &pix_fmt_info[pix_fmt];
524 size = picture->linesize[0] * height;
526 case PIX_FMT_YUV420P:
527 case PIX_FMT_YUV422P:
528 case PIX_FMT_YUV444P:
529 case PIX_FMT_YUV410P:
530 case PIX_FMT_YUV411P:
531 case PIX_FMT_YUV440P:
532 case PIX_FMT_YUVJ420P:
533 case PIX_FMT_YUVJ422P:
534 case PIX_FMT_YUVJ444P:
535 case PIX_FMT_YUVJ440P:
536 h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
537 size2 = picture->linesize[1] * h2;
538 picture->data[0] = ptr;
539 picture->data[1] = picture->data[0] + size;
540 picture->data[2] = picture->data[1] + size2;
541 picture->data[3] = NULL;
542 return size + 2 * size2;
543 case PIX_FMT_YUVA420P:
544 h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
545 size2 = picture->linesize[1] * h2;
546 picture->data[0] = ptr;
547 picture->data[1] = picture->data[0] + size;
548 picture->data[2] = picture->data[1] + size2;
549 picture->data[3] = picture->data[1] + size2 + size2;
550 return 2 * size + 2 * size2;
553 h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
554 size2 = picture->linesize[1] * h2 * 2;
555 picture->data[0] = ptr;
556 picture->data[1] = picture->data[0] + size;
557 picture->data[2] = NULL;
558 picture->data[3] = NULL;
559 return size + 2 * size2;
564 case PIX_FMT_RGB32_1:
565 case PIX_FMT_BGR32_1:
566 case PIX_FMT_GRAY16BE:
567 case PIX_FMT_GRAY16LE:
572 case PIX_FMT_YUYV422:
573 case PIX_FMT_UYVY422:
574 case PIX_FMT_UYYVYY411:
577 case PIX_FMT_RGB4_BYTE:
578 case PIX_FMT_BGR4_BYTE:
582 case PIX_FMT_MONOWHITE:
583 case PIX_FMT_MONOBLACK:
584 picture->data[0] = ptr;
585 picture->data[1] = NULL;
586 picture->data[2] = NULL;
587 picture->data[3] = NULL;
590 size2 = (size + 3) & ~3;
591 picture->data[0] = ptr;
592 picture->data[1] = ptr + size2; /* palette is stored here as 256 32 bit words */
593 picture->data[2] = NULL;
594 picture->data[3] = NULL;
595 return size2 + 256 * 4;
597 picture->data[0] = NULL;
598 picture->data[1] = NULL;
599 picture->data[2] = NULL;
600 picture->data[3] = NULL;
605 int avpicture_fill(AVPicture *picture, uint8_t *ptr,
606 int pix_fmt, int width, int height)
609 if(avcodec_check_dimensions(NULL, width, height))
612 if (ff_fill_linesize(picture, pix_fmt, width))
615 return ff_fill_pointer(picture, ptr, pix_fmt, height);
618 int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
619 unsigned char *dest, int dest_size)
621 const PixFmtInfo* pf = &pix_fmt_info[pix_fmt];
622 int i, j, w, h, data_planes;
623 const unsigned char* s;
624 int size = avpicture_get_size(pix_fmt, width, height);
626 if (size > dest_size || size < 0)
629 if (pf->pixel_type == FF_PIXEL_PACKED || pf->pixel_type == FF_PIXEL_PALETTE) {
630 if (pix_fmt == PIX_FMT_YUYV422 ||
631 pix_fmt == PIX_FMT_UYVY422 ||
632 pix_fmt == PIX_FMT_BGR565 ||
633 pix_fmt == PIX_FMT_BGR555 ||
634 pix_fmt == PIX_FMT_RGB565 ||
635 pix_fmt == PIX_FMT_RGB555)
637 else if (pix_fmt == PIX_FMT_UYYVYY411)
639 else if (pix_fmt == PIX_FMT_PAL8)
642 w = width * (pf->depth * pf->nb_channels / 8);
647 data_planes = pf->nb_channels;
648 w = (width*pf->depth + 7)/8;
652 for (i=0; i<data_planes; i++) {
654 w = width >> pf->x_chroma_shift;
655 h = height >> pf->y_chroma_shift;
661 s += src->linesize[i];
665 if (pf->pixel_type == FF_PIXEL_PALETTE)
666 memcpy((unsigned char *)(((size_t)dest + 3) & ~3), src->data[1], 256 * 4);
671 int avpicture_get_size(int pix_fmt, int width, int height)
673 AVPicture dummy_pict;
674 return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height);
677 int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
680 const PixFmtInfo *pf, *ps;
683 ps = &pix_fmt_info[src_pix_fmt];
684 pf = &pix_fmt_info[dst_pix_fmt];
688 pf = &pix_fmt_info[dst_pix_fmt];
689 if (pf->depth < ps->depth ||
690 (dst_pix_fmt == PIX_FMT_RGB555 && src_pix_fmt == PIX_FMT_RGB565))
691 loss |= FF_LOSS_DEPTH;
692 if (pf->x_chroma_shift > ps->x_chroma_shift ||
693 pf->y_chroma_shift > ps->y_chroma_shift)
694 loss |= FF_LOSS_RESOLUTION;
695 switch(pf->color_type) {
697 if (ps->color_type != FF_COLOR_RGB &&
698 ps->color_type != FF_COLOR_GRAY)
699 loss |= FF_LOSS_COLORSPACE;
702 if (ps->color_type != FF_COLOR_GRAY)
703 loss |= FF_LOSS_COLORSPACE;
706 if (ps->color_type != FF_COLOR_YUV)
707 loss |= FF_LOSS_COLORSPACE;
709 case FF_COLOR_YUV_JPEG:
710 if (ps->color_type != FF_COLOR_YUV_JPEG &&
711 ps->color_type != FF_COLOR_YUV &&
712 ps->color_type != FF_COLOR_GRAY)
713 loss |= FF_LOSS_COLORSPACE;
717 if (ps->color_type != pf->color_type)
718 loss |= FF_LOSS_COLORSPACE;
721 if (pf->color_type == FF_COLOR_GRAY &&
722 ps->color_type != FF_COLOR_GRAY)
723 loss |= FF_LOSS_CHROMA;
724 if (!pf->is_alpha && (ps->is_alpha && has_alpha))
725 loss |= FF_LOSS_ALPHA;
726 if (pf->pixel_type == FF_PIXEL_PALETTE &&
727 (ps->pixel_type != FF_PIXEL_PALETTE && ps->color_type != FF_COLOR_GRAY))
728 loss |= FF_LOSS_COLORQUANT;
732 static int avg_bits_per_pixel(int pix_fmt)
735 const PixFmtInfo *pf;
737 pf = &pix_fmt_info[pix_fmt];
738 switch(pf->pixel_type) {
739 case FF_PIXEL_PACKED:
741 case PIX_FMT_YUYV422:
742 case PIX_FMT_UYVY422:
749 case PIX_FMT_UYYVYY411:
753 bits = pf->depth * pf->nb_channels;
757 case FF_PIXEL_PLANAR:
758 if (pf->x_chroma_shift == 0 && pf->y_chroma_shift == 0) {
759 bits = pf->depth * pf->nb_channels;
761 bits = pf->depth + ((2 * pf->depth) >>
762 (pf->x_chroma_shift + pf->y_chroma_shift));
765 case FF_PIXEL_PALETTE:
775 static int avcodec_find_best_pix_fmt1(int pix_fmt_mask,
780 int dist, i, loss, min_dist, dst_pix_fmt;
782 /* find exact color match with smallest size */
784 min_dist = 0x7fffffff;
785 for(i = 0;i < PIX_FMT_NB; i++) {
786 if (pix_fmt_mask & (1 << i)) {
787 loss = avcodec_get_pix_fmt_loss(i, src_pix_fmt, has_alpha) & loss_mask;
789 dist = avg_bits_per_pixel(i);
790 if (dist < min_dist) {
800 int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
801 int has_alpha, int *loss_ptr)
803 int dst_pix_fmt, loss_mask, i;
804 static const int loss_mask_order[] = {
805 ~0, /* no loss first */
808 ~(FF_LOSS_COLORSPACE | FF_LOSS_RESOLUTION),
814 /* try with successive loss */
817 loss_mask = loss_mask_order[i++];
818 dst_pix_fmt = avcodec_find_best_pix_fmt1(pix_fmt_mask, src_pix_fmt,
819 has_alpha, loss_mask);
820 if (dst_pix_fmt >= 0)
828 *loss_ptr = avcodec_get_pix_fmt_loss(dst_pix_fmt, src_pix_fmt, has_alpha);
832 void ff_img_copy_plane(uint8_t *dst, int dst_wrap,
833 const uint8_t *src, int src_wrap,
834 int width, int height)
838 for(;height > 0; height--) {
839 memcpy(dst, src, width);
845 int ff_get_plane_bytewidth(enum PixelFormat pix_fmt, int width, int plane)
848 const PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
850 pf = &pix_fmt_info[pix_fmt];
851 switch(pf->pixel_type) {
852 case FF_PIXEL_PACKED:
854 case PIX_FMT_YUYV422:
855 case PIX_FMT_UYVY422:
862 case PIX_FMT_UYYVYY411:
866 bits = pf->depth * pf->nb_channels;
869 return (width * bits + 7) >> 3;
871 case FF_PIXEL_PLANAR:
872 if (plane == 1 || plane == 2)
873 width >>= pf->x_chroma_shift;
875 return (width * pf->depth + 7) >> 3;
877 case FF_PIXEL_PALETTE:
886 void av_picture_copy(AVPicture *dst, const AVPicture *src,
887 int pix_fmt, int width, int height)
890 const PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
892 pf = &pix_fmt_info[pix_fmt];
893 switch(pf->pixel_type) {
894 case FF_PIXEL_PACKED:
895 case FF_PIXEL_PLANAR:
896 for(i = 0; i < pf->nb_channels; i++) {
898 int bwidth = ff_get_plane_bytewidth(pix_fmt, width, i);
901 if (i == 1 || i == 2) {
902 w >>= pf->x_chroma_shift;
903 h >>= pf->y_chroma_shift;
905 ff_img_copy_plane(dst->data[i], dst->linesize[i],
906 src->data[i], src->linesize[i],
910 case FF_PIXEL_PALETTE:
911 ff_img_copy_plane(dst->data[0], dst->linesize[0],
912 src->data[0], src->linesize[0],
914 /* copy the palette */
915 ff_img_copy_plane(dst->data[1], dst->linesize[1],
916 src->data[1], src->linesize[1],
922 /* XXX: totally non optimized */
924 static void yuyv422_to_yuv420p(AVPicture *dst, const AVPicture *src,
925 int width, int height)
927 const uint8_t *p, *p1;
928 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
936 for(;height >= 1; height -= 2) {
941 for(w = width; w >= 2; w -= 2) {
958 p1 += src->linesize[0];
959 lum1 += dst->linesize[0];
963 for(w = width; w >= 2; w -= 2) {
972 p1 += src->linesize[0];
973 lum1 += dst->linesize[0];
975 cb1 += dst->linesize[1];
976 cr1 += dst->linesize[2];
980 static void uyvy422_to_yuv420p(AVPicture *dst, const AVPicture *src,
981 int width, int height)
983 const uint8_t *p, *p1;
984 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
993 for(;height >= 1; height -= 2) {
998 for(w = width; w >= 2; w -= 2) {
1015 p1 += src->linesize[0];
1016 lum1 += dst->linesize[0];
1020 for(w = width; w >= 2; w -= 2) {
1029 p1 += src->linesize[0];
1030 lum1 += dst->linesize[0];
1032 cb1 += dst->linesize[1];
1033 cr1 += dst->linesize[2];
1038 static void uyvy422_to_yuv422p(AVPicture *dst, const AVPicture *src,
1039 int width, int height)
1041 const uint8_t *p, *p1;
1042 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
1046 lum1 = dst->data[0];
1049 for(;height > 0; height--) {
1054 for(w = width; w >= 2; w -= 2) {
1064 p1 += src->linesize[0];
1065 lum1 += dst->linesize[0];
1066 cb1 += dst->linesize[1];
1067 cr1 += dst->linesize[2];
1072 static void yuyv422_to_yuv422p(AVPicture *dst, const AVPicture *src,
1073 int width, int height)
1075 const uint8_t *p, *p1;
1076 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
1080 lum1 = dst->data[0];
1083 for(;height > 0; height--) {
1088 for(w = width; w >= 2; w -= 2) {
1098 p1 += src->linesize[0];
1099 lum1 += dst->linesize[0];
1100 cb1 += dst->linesize[1];
1101 cr1 += dst->linesize[2];
1105 static void yuv422p_to_yuyv422(AVPicture *dst, const AVPicture *src,
1106 int width, int height)
1109 const uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
1113 lum1 = src->data[0];
1116 for(;height > 0; height--) {
1121 for(w = width; w >= 2; w -= 2) {
1131 p1 += dst->linesize[0];
1132 lum1 += src->linesize[0];
1133 cb1 += src->linesize[1];
1134 cr1 += src->linesize[2];
1138 static void yuv422p_to_uyvy422(AVPicture *dst, const AVPicture *src,
1139 int width, int height)
1142 const uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
1146 lum1 = src->data[0];
1149 for(;height > 0; height--) {
1154 for(w = width; w >= 2; w -= 2) {
1164 p1 += dst->linesize[0];
1165 lum1 += src->linesize[0];
1166 cb1 += src->linesize[1];
1167 cr1 += src->linesize[2];
1171 static void uyyvyy411_to_yuv411p(AVPicture *dst, const AVPicture *src,
1172 int width, int height)
1174 const uint8_t *p, *p1;
1175 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
1179 lum1 = dst->data[0];
1182 for(;height > 0; height--) {
1187 for(w = width; w >= 4; w -= 4) {
1199 p1 += src->linesize[0];
1200 lum1 += dst->linesize[0];
1201 cb1 += dst->linesize[1];
1202 cr1 += dst->linesize[2];
1207 static void yuv420p_to_yuyv422(AVPicture *dst, const AVPicture *src,
1208 int width, int height)
1211 uint8_t *line1, *line2, *linesrc = dst->data[0];
1212 uint8_t *lum1, *lum2, *lumsrc = src->data[0];
1213 uint8_t *cb1, *cb2 = src->data[1];
1214 uint8_t *cr1, *cr2 = src->data[2];
1216 for(h = height / 2; h--;) {
1218 line2 = linesrc + dst->linesize[0];
1221 lum2 = lumsrc + src->linesize[0];
1226 for(w = width / 2; w--;) {
1227 *line1++ = *lum1++; *line2++ = *lum2++;
1228 *line1++ = *line2++ = *cb1++;
1229 *line1++ = *lum1++; *line2++ = *lum2++;
1230 *line1++ = *line2++ = *cr1++;
1233 linesrc += dst->linesize[0] * 2;
1234 lumsrc += src->linesize[0] * 2;
1235 cb2 += src->linesize[1];
1236 cr2 += src->linesize[2];
1240 static void yuv420p_to_uyvy422(AVPicture *dst, const AVPicture *src,
1241 int width, int height)
1244 uint8_t *line1, *line2, *linesrc = dst->data[0];
1245 uint8_t *lum1, *lum2, *lumsrc = src->data[0];
1246 uint8_t *cb1, *cb2 = src->data[1];
1247 uint8_t *cr1, *cr2 = src->data[2];
1249 for(h = height / 2; h--;) {
1251 line2 = linesrc + dst->linesize[0];
1254 lum2 = lumsrc + src->linesize[0];
1259 for(w = width / 2; w--;) {
1260 *line1++ = *line2++ = *cb1++;
1261 *line1++ = *lum1++; *line2++ = *lum2++;
1262 *line1++ = *line2++ = *cr1++;
1263 *line1++ = *lum1++; *line2++ = *lum2++;
1266 linesrc += dst->linesize[0] * 2;
1267 lumsrc += src->linesize[0] * 2;
1268 cb2 += src->linesize[1];
1269 cr2 += src->linesize[2];
1274 void ff_shrink22(uint8_t *dst, int dst_wrap,
1275 const uint8_t *src, int src_wrap,
1276 int width, int height)
1279 const uint8_t *s1, *s2;
1282 for(;height > 0; height--) {
1286 for(w = width;w >= 4; w-=4) {
1287 d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2;
1288 d[1] = (s1[2] + s1[3] + s2[2] + s2[3] + 2) >> 2;
1289 d[2] = (s1[4] + s1[5] + s2[4] + s2[5] + 2) >> 2;
1290 d[3] = (s1[6] + s1[7] + s2[6] + s2[7] + 2) >> 2;
1296 d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2;
1301 src += 2 * src_wrap;
1307 void ff_shrink44(uint8_t *dst, int dst_wrap,
1308 const uint8_t *src, int src_wrap,
1309 int width, int height)
1312 const uint8_t *s1, *s2, *s3, *s4;
1315 for(;height > 0; height--) {
1321 for(w = width;w > 0; w--) {
1322 d[0] = (s1[0] + s1[1] + s1[2] + s1[3] +
1323 s2[0] + s2[1] + s2[2] + s2[3] +
1324 s3[0] + s3[1] + s3[2] + s3[3] +
1325 s4[0] + s4[1] + s4[2] + s4[3] + 8) >> 4;
1332 src += 4 * src_wrap;
1338 void ff_shrink88(uint8_t *dst, int dst_wrap,
1339 const uint8_t *src, int src_wrap,
1340 int width, int height)
1344 for(;height > 0; height--) {
1345 for(w = width;w > 0; w--) {
1348 tmp += src[0] + src[1] + src[2] + src[3] + src[4] + src[5] + src[6] + src[7];
1351 *(dst++) = (tmp + 32)>>6;
1352 src += 8 - 8*src_wrap;
1354 src += 8*src_wrap - 8*width;
1355 dst += dst_wrap - width;
1359 /* XXX: add jpeg quantize code */
1361 #define TRANSP_INDEX (6*6*6)
1363 /* this is maybe slow, but allows for extensions */
1364 static inline unsigned char gif_clut_index(uint8_t r, uint8_t g, uint8_t b)
1366 return (((r) / 47) % 6) * 6 * 6 + (((g) / 47) % 6) * 6 + (((b) / 47) % 6);
1369 static void build_rgb_palette(uint8_t *palette, int has_alpha)
1372 static const uint8_t pal_value[6] = { 0x00, 0x33, 0x66, 0x99, 0xcc, 0xff };
1375 pal = (uint32_t *)palette;
1377 for(r = 0; r < 6; r++) {
1378 for(g = 0; g < 6; g++) {
1379 for(b = 0; b < 6; b++) {
1380 pal[i++] = (0xff << 24) | (pal_value[r] << 16) |
1381 (pal_value[g] << 8) | pal_value[b];
1388 pal[i++] = 0xff000000;
1391 /* copy bit n to bits 0 ... n - 1 */
1392 static inline unsigned int bitcopy_n(unsigned int a, int n)
1395 mask = (1 << n) - 1;
1396 return (a & (0xff & ~mask)) | ((-((a >> n) & 1)) & mask);
1399 /* rgb555 handling */
1401 #define RGB_NAME rgb555
1403 #define RGB_IN(r, g, b, s)\
1405 unsigned int v = ((const uint16_t *)(s))[0];\
1406 r = bitcopy_n(v >> (10 - 3), 3);\
1407 g = bitcopy_n(v >> (5 - 3), 3);\
1408 b = bitcopy_n(v << 3, 3);\
1412 #define RGB_OUT(d, r, g, b)\
1414 ((uint16_t *)(d))[0] = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3);\
1419 #include "imgconvert_template.h"
1421 /* rgb565 handling */
1423 #define RGB_NAME rgb565
1425 #define RGB_IN(r, g, b, s)\
1427 unsigned int v = ((const uint16_t *)(s))[0];\
1428 r = bitcopy_n(v >> (11 - 3), 3);\
1429 g = bitcopy_n(v >> (5 - 2), 2);\
1430 b = bitcopy_n(v << 3, 3);\
1433 #define RGB_OUT(d, r, g, b)\
1435 ((uint16_t *)(d))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);\
1440 #include "imgconvert_template.h"
1442 /* bgr24 handling */
1444 #define RGB_NAME bgr24
1446 #define RGB_IN(r, g, b, s)\
1453 #define RGB_OUT(d, r, g, b)\
1462 #include "imgconvert_template.h"
1468 /* rgb24 handling */
1470 #define RGB_NAME rgb24
1473 #define RGB_IN(r, g, b, s)\
1480 #define RGB_OUT(d, r, g, b)\
1489 #include "imgconvert_template.h"
1491 /* rgb32 handling */
1493 #define RGB_NAME rgb32
1496 #define RGB_IN(r, g, b, s)\
1498 unsigned int v = ((const uint32_t *)(s))[0];\
1499 r = (v >> 16) & 0xff;\
1500 g = (v >> 8) & 0xff;\
1504 #define RGBA_IN(r, g, b, a, s)\
1506 unsigned int v = ((const uint32_t *)(s))[0];\
1507 a = (v >> 24) & 0xff;\
1508 r = (v >> 16) & 0xff;\
1509 g = (v >> 8) & 0xff;\
1513 #define RGBA_OUT(d, r, g, b, a)\
1515 ((uint32_t *)(d))[0] = (a << 24) | (r << 16) | (g << 8) | b;\
1520 #include "imgconvert_template.h"
1522 static void mono_to_gray(AVPicture *dst, const AVPicture *src,
1523 int width, int height, int xor_mask)
1525 const unsigned char *p;
1527 int v, dst_wrap, src_wrap;
1531 src_wrap = src->linesize[0] - ((width + 7) >> 3);
1534 dst_wrap = dst->linesize[0] - width;
1535 for(y=0;y<height;y++) {
1538 v = *p++ ^ xor_mask;
1540 q[1] = -((v >> 6) & 1);
1541 q[2] = -((v >> 5) & 1);
1542 q[3] = -((v >> 4) & 1);
1543 q[4] = -((v >> 3) & 1);
1544 q[5] = -((v >> 2) & 1);
1545 q[6] = -((v >> 1) & 1);
1546 q[7] = -((v >> 0) & 1);
1551 v = *p++ ^ xor_mask;
1553 q[0] = -((v >> 7) & 1);
1563 static void monowhite_to_gray(AVPicture *dst, const AVPicture *src,
1564 int width, int height)
1566 mono_to_gray(dst, src, width, height, 0xff);
1569 static void monoblack_to_gray(AVPicture *dst, const AVPicture *src,
1570 int width, int height)
1572 mono_to_gray(dst, src, width, height, 0x00);
1575 static void gray_to_mono(AVPicture *dst, const AVPicture *src,
1576 int width, int height, int xor_mask)
1581 int j, b, v, n1, src_wrap, dst_wrap, y;
1584 src_wrap = src->linesize[0] - width;
1587 dst_wrap = dst->linesize[0] - ((width + 7) >> 3);
1589 for(y=0;y<height;y++) {
1596 v = (v << 1) | (b >> 7);
1598 d[0] = v ^ xor_mask;
1608 v = (v << 1) | (b >> 7);
1611 d[0] = (v << (8 - (n1 & 7))) ^ xor_mask;
1619 static void gray_to_monowhite(AVPicture *dst, const AVPicture *src,
1620 int width, int height)
1622 gray_to_mono(dst, src, width, height, 0xff);
1625 static void gray_to_monoblack(AVPicture *dst, const AVPicture *src,
1626 int width, int height)
1628 gray_to_mono(dst, src, width, height, 0x00);
1631 static void gray_to_gray16(AVPicture *dst, const AVPicture *src,
1632 int width, int height)
1634 int x, y, src_wrap, dst_wrap;
1637 src_wrap = src->linesize[0] - width;
1639 dst_wrap = dst->linesize[0] - width * 2;
1640 for(y=0; y<height; y++){
1641 for(x=0; x<width; x++){
1650 static void gray16_to_gray(AVPicture *dst, const AVPicture *src,
1651 int width, int height)
1653 int x, y, src_wrap, dst_wrap;
1656 src_wrap = src->linesize[0] - width * 2;
1658 dst_wrap = dst->linesize[0] - width;
1659 for(y=0; y<height; y++){
1660 for(x=0; x<width; x++){
1669 static void gray16be_to_gray(AVPicture *dst, const AVPicture *src,
1670 int width, int height)
1672 gray16_to_gray(dst, src, width, height);
1675 static void gray16le_to_gray(AVPicture *dst, const AVPicture *src,
1676 int width, int height)
1678 AVPicture tmpsrc = *src;
1680 gray16_to_gray(dst, &tmpsrc, width, height);
1683 static void gray16_to_gray16(AVPicture *dst, const AVPicture *src,
1684 int width, int height)
1686 int x, y, src_wrap, dst_wrap;
1688 s = (uint16_t*)src->data[0];
1689 src_wrap = (src->linesize[0] - width * 2)/2;
1690 d = (uint16_t*)dst->data[0];
1691 dst_wrap = (dst->linesize[0] - width * 2)/2;
1692 for(y=0; y<height; y++){
1693 for(x=0; x<width; x++){
1694 *d++ = bswap_16(*s++);
1702 typedef struct ConvertEntry {
1703 void (*convert)(AVPicture *dst,
1704 const AVPicture *src, int width, int height);
1707 /* Add each new conversion function in this table. In order to be able
1708 to convert from any format to any format, the following constraints
1711 - all FF_COLOR_RGB formats must convert to and from PIX_FMT_RGB24
1713 - all FF_COLOR_GRAY formats must convert to and from PIX_FMT_GRAY8
1715 - all FF_COLOR_RGB formats with alpha must convert to and from PIX_FMT_RGB32
1717 - PIX_FMT_YUV444P and PIX_FMT_YUVJ444P must convert to and from
1720 - PIX_FMT_422 must convert to and from PIX_FMT_422P.
1722 The other conversion functions are just optimizations for common cases.
1724 static const ConvertEntry convert_table[PIX_FMT_NB][PIX_FMT_NB] = {
1725 [PIX_FMT_YUV420P] = {
1726 [PIX_FMT_YUYV422] = {
1727 .convert = yuv420p_to_yuyv422,
1729 [PIX_FMT_RGB555] = {
1730 .convert = yuv420p_to_rgb555
1732 [PIX_FMT_RGB565] = {
1733 .convert = yuv420p_to_rgb565
1736 .convert = yuv420p_to_bgr24
1739 .convert = yuv420p_to_rgb24
1742 .convert = yuv420p_to_rgb32
1744 [PIX_FMT_UYVY422] = {
1745 .convert = yuv420p_to_uyvy422,
1748 [PIX_FMT_YUV422P] = {
1749 [PIX_FMT_YUYV422] = {
1750 .convert = yuv422p_to_yuyv422,
1752 [PIX_FMT_UYVY422] = {
1753 .convert = yuv422p_to_uyvy422,
1756 [PIX_FMT_YUV444P] = {
1758 .convert = yuv444p_to_rgb24
1761 [PIX_FMT_YUVJ420P] = {
1762 [PIX_FMT_RGB555] = {
1763 .convert = yuvj420p_to_rgb555
1765 [PIX_FMT_RGB565] = {
1766 .convert = yuvj420p_to_rgb565
1769 .convert = yuvj420p_to_bgr24
1772 .convert = yuvj420p_to_rgb24
1775 .convert = yuvj420p_to_rgb32
1778 [PIX_FMT_YUVJ444P] = {
1780 .convert = yuvj444p_to_rgb24
1783 [PIX_FMT_YUYV422] = {
1784 [PIX_FMT_YUV420P] = {
1785 .convert = yuyv422_to_yuv420p,
1787 [PIX_FMT_YUV422P] = {
1788 .convert = yuyv422_to_yuv422p,
1791 [PIX_FMT_UYVY422] = {
1792 [PIX_FMT_YUV420P] = {
1793 .convert = uyvy422_to_yuv420p,
1795 [PIX_FMT_YUV422P] = {
1796 .convert = uyvy422_to_yuv422p,
1800 [PIX_FMT_YUV420P] = {
1801 .convert = rgb24_to_yuv420p
1803 [PIX_FMT_RGB565] = {
1804 .convert = rgb24_to_rgb565
1806 [PIX_FMT_RGB555] = {
1807 .convert = rgb24_to_rgb555
1810 .convert = rgb24_to_rgb32
1813 .convert = rgb24_to_bgr24
1816 .convert = rgb24_to_gray
1819 .convert = rgb24_to_pal8
1821 [PIX_FMT_YUV444P] = {
1822 .convert = rgb24_to_yuv444p
1824 [PIX_FMT_YUVJ420P] = {
1825 .convert = rgb24_to_yuvj420p
1827 [PIX_FMT_YUVJ444P] = {
1828 .convert = rgb24_to_yuvj444p
1833 .convert = rgb32_to_rgb24
1836 .convert = rgb32_to_bgr24
1838 [PIX_FMT_RGB565] = {
1839 .convert = rgb32_to_rgb565
1841 [PIX_FMT_RGB555] = {
1842 .convert = rgb32_to_rgb555
1845 .convert = rgb32_to_pal8
1847 [PIX_FMT_YUV420P] = {
1848 .convert = rgb32_to_yuv420p
1851 .convert = rgb32_to_gray
1856 .convert = bgr24_to_rgb32
1859 .convert = bgr24_to_rgb24
1861 [PIX_FMT_YUV420P] = {
1862 .convert = bgr24_to_yuv420p
1865 .convert = bgr24_to_gray
1868 [PIX_FMT_RGB555] = {
1870 .convert = rgb555_to_rgb24
1873 .convert = rgb555_to_rgb32
1875 [PIX_FMT_YUV420P] = {
1876 .convert = rgb555_to_yuv420p
1879 .convert = rgb555_to_gray
1882 [PIX_FMT_RGB565] = {
1884 .convert = rgb565_to_rgb32
1887 .convert = rgb565_to_rgb24
1889 [PIX_FMT_YUV420P] = {
1890 .convert = rgb565_to_yuv420p
1893 .convert = rgb565_to_gray
1896 [PIX_FMT_GRAY16BE] = {
1898 .convert = gray16be_to_gray
1900 [PIX_FMT_GRAY16LE] = {
1901 .convert = gray16_to_gray16
1904 [PIX_FMT_GRAY16LE] = {
1906 .convert = gray16le_to_gray
1908 [PIX_FMT_GRAY16BE] = {
1909 .convert = gray16_to_gray16
1913 [PIX_FMT_RGB555] = {
1914 .convert = gray_to_rgb555
1916 [PIX_FMT_RGB565] = {
1917 .convert = gray_to_rgb565
1920 .convert = gray_to_rgb24
1923 .convert = gray_to_bgr24
1926 .convert = gray_to_rgb32
1928 [PIX_FMT_MONOWHITE] = {
1929 .convert = gray_to_monowhite
1931 [PIX_FMT_MONOBLACK] = {
1932 .convert = gray_to_monoblack
1934 [PIX_FMT_GRAY16LE] = {
1935 .convert = gray_to_gray16
1937 [PIX_FMT_GRAY16BE] = {
1938 .convert = gray_to_gray16
1941 [PIX_FMT_MONOWHITE] = {
1943 .convert = monowhite_to_gray
1946 [PIX_FMT_MONOBLACK] = {
1948 .convert = monoblack_to_gray
1952 [PIX_FMT_RGB555] = {
1953 .convert = pal8_to_rgb555
1955 [PIX_FMT_RGB565] = {
1956 .convert = pal8_to_rgb565
1959 .convert = pal8_to_bgr24
1962 .convert = pal8_to_rgb24
1965 .convert = pal8_to_rgb32
1968 [PIX_FMT_UYYVYY411] = {
1969 [PIX_FMT_YUV411P] = {
1970 .convert = uyyvyy411_to_yuv411p,
1976 int avpicture_alloc(AVPicture *picture,
1977 int pix_fmt, int width, int height)
1982 size = avpicture_get_size(pix_fmt, width, height);
1985 ptr = av_malloc(size);
1988 avpicture_fill(picture, ptr, pix_fmt, width, height);
1991 memset(picture, 0, sizeof(AVPicture));
1995 void avpicture_free(AVPicture *picture)
1997 av_free(picture->data[0]);
2000 /* return true if yuv planar */
2001 static inline int is_yuv_planar(const PixFmtInfo *ps)
2003 return (ps->color_type == FF_COLOR_YUV ||
2004 ps->color_type == FF_COLOR_YUV_JPEG) &&
2005 ps->pixel_type == FF_PIXEL_PLANAR;
2008 int av_picture_crop(AVPicture *dst, const AVPicture *src,
2009 int pix_fmt, int top_band, int left_band)
2014 if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB || !is_yuv_planar(&pix_fmt_info[pix_fmt]))
2017 y_shift = pix_fmt_info[pix_fmt].y_chroma_shift;
2018 x_shift = pix_fmt_info[pix_fmt].x_chroma_shift;
2020 dst->data[0] = src->data[0] + (top_band * src->linesize[0]) + left_band;
2021 dst->data[1] = src->data[1] + ((top_band >> y_shift) * src->linesize[1]) + (left_band >> x_shift);
2022 dst->data[2] = src->data[2] + ((top_band >> y_shift) * src->linesize[2]) + (left_band >> x_shift);
2024 dst->linesize[0] = src->linesize[0];
2025 dst->linesize[1] = src->linesize[1];
2026 dst->linesize[2] = src->linesize[2];
2030 int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width,
2031 int pix_fmt, int padtop, int padbottom, int padleft, int padright,
2040 if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB ||
2041 !is_yuv_planar(&pix_fmt_info[pix_fmt])) return -1;
2043 for (i = 0; i < 3; i++) {
2044 x_shift = i ? pix_fmt_info[pix_fmt].x_chroma_shift : 0;
2045 y_shift = i ? pix_fmt_info[pix_fmt].y_chroma_shift : 0;
2047 if (padtop || padleft) {
2048 memset(dst->data[i], color[i],
2049 dst->linesize[i] * (padtop >> y_shift) + (padleft >> x_shift));
2052 if (padleft || padright) {
2053 optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
2054 (dst->linesize[i] - (padright >> x_shift));
2055 yheight = (height - 1 - (padtop + padbottom)) >> y_shift;
2056 for (y = 0; y < yheight; y++) {
2057 memset(optr, color[i], (padleft + padright) >> x_shift);
2058 optr += dst->linesize[i];
2062 if (src) { /* first line */
2063 uint8_t *iptr = src->data[i];
2064 optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
2065 (padleft >> x_shift);
2066 memcpy(optr, iptr, (width - padleft - padright) >> x_shift);
2067 iptr += src->linesize[i];
2068 optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
2069 (dst->linesize[i] - (padright >> x_shift));
2070 yheight = (height - 1 - (padtop + padbottom)) >> y_shift;
2071 for (y = 0; y < yheight; y++) {
2072 memset(optr, color[i], (padleft + padright) >> x_shift);
2073 memcpy(optr + ((padleft + padright) >> x_shift), iptr,
2074 (width - padleft - padright) >> x_shift);
2075 iptr += src->linesize[i];
2076 optr += dst->linesize[i];
2080 if (padbottom || padright) {
2081 optr = dst->data[i] + dst->linesize[i] *
2082 ((height - padbottom) >> y_shift) - (padright >> x_shift);
2083 memset(optr, color[i],dst->linesize[i] *
2084 (padbottom >> y_shift) + (padright >> x_shift));
2090 #ifndef CONFIG_SWSCALE
2091 static uint8_t y_ccir_to_jpeg[256];
2092 static uint8_t y_jpeg_to_ccir[256];
2093 static uint8_t c_ccir_to_jpeg[256];
2094 static uint8_t c_jpeg_to_ccir[256];
2096 /* init various conversion tables */
2097 static void img_convert_init(void)
2100 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
2102 for(i = 0;i < 256; i++) {
2103 y_ccir_to_jpeg[i] = Y_CCIR_TO_JPEG(i);
2104 y_jpeg_to_ccir[i] = Y_JPEG_TO_CCIR(i);
2105 c_ccir_to_jpeg[i] = C_CCIR_TO_JPEG(i);
2106 c_jpeg_to_ccir[i] = C_JPEG_TO_CCIR(i);
2110 /* apply to each pixel the given table */
2111 static void img_apply_table(uint8_t *dst, int dst_wrap,
2112 const uint8_t *src, int src_wrap,
2113 int width, int height, const uint8_t *table1)
2118 const uint8_t *table;
2121 for(;height > 0; height--) {
2145 /* XXX: use generic filter ? */
2146 /* XXX: in most cases, the sampling position is incorrect */
2149 static void shrink41(uint8_t *dst, int dst_wrap,
2150 const uint8_t *src, int src_wrap,
2151 int width, int height)
2157 for(;height > 0; height--) {
2160 for(w = width;w > 0; w--) {
2161 d[0] = (s[0] + s[1] + s[2] + s[3] + 2) >> 2;
2171 static void shrink21(uint8_t *dst, int dst_wrap,
2172 const uint8_t *src, int src_wrap,
2173 int width, int height)
2179 for(;height > 0; height--) {
2182 for(w = width;w > 0; w--) {
2183 d[0] = (s[0] + s[1]) >> 1;
2193 static void shrink12(uint8_t *dst, int dst_wrap,
2194 const uint8_t *src, int src_wrap,
2195 int width, int height)
2199 const uint8_t *s1, *s2;
2201 for(;height > 0; height--) {
2205 for(w = width;w >= 4; w-=4) {
2206 d[0] = (s1[0] + s2[0]) >> 1;
2207 d[1] = (s1[1] + s2[1]) >> 1;
2208 d[2] = (s1[2] + s2[2]) >> 1;
2209 d[3] = (s1[3] + s2[3]) >> 1;
2215 d[0] = (s1[0] + s2[0]) >> 1;
2220 src += 2 * src_wrap;
2225 static void grow21_line(uint8_t *dst, const uint8_t *src,
2234 for(w = width;w >= 4; w-=4) {
2235 d[1] = d[0] = s1[0];
2236 d[3] = d[2] = s1[1];
2240 for(;w >= 2; w -= 2) {
2241 d[1] = d[0] = s1[0];
2245 /* only needed if width is not a multiple of two */
2246 /* XXX: veryfy that */
2252 static void grow41_line(uint8_t *dst, const uint8_t *src,
2261 for(w = width;w >= 4; w-=4) {
2273 static void grow21(uint8_t *dst, int dst_wrap,
2274 const uint8_t *src, int src_wrap,
2275 int width, int height)
2277 for(;height > 0; height--) {
2278 grow21_line(dst, src, width);
2285 static void grow12(uint8_t *dst, int dst_wrap,
2286 const uint8_t *src, int src_wrap,
2287 int width, int height)
2289 for(;height > 0; height-=2) {
2290 memcpy(dst, src, width);
2292 memcpy(dst, src, width);
2299 static void grow22(uint8_t *dst, int dst_wrap,
2300 const uint8_t *src, int src_wrap,
2301 int width, int height)
2303 for(;height > 0; height--) {
2304 grow21_line(dst, src, width);
2312 static void grow41(uint8_t *dst, int dst_wrap,
2313 const uint8_t *src, int src_wrap,
2314 int width, int height)
2316 for(;height > 0; height--) {
2317 grow41_line(dst, src, width);
2324 static void grow44(uint8_t *dst, int dst_wrap,
2325 const uint8_t *src, int src_wrap,
2326 int width, int height)
2328 for(;height > 0; height--) {
2329 grow41_line(dst, src, width);
2330 if ((height & 3) == 1)
2337 static void conv411(uint8_t *dst, int dst_wrap,
2338 const uint8_t *src, int src_wrap,
2339 int width, int height)
2342 const uint8_t *s1, *s2;
2347 for(;height > 0; height--) {
2349 s2 = src + src_wrap;
2351 for(w = width;w > 0; w--) {
2352 c = (s1[0] + s2[0]) >> 1;
2359 src += src_wrap * 2;
2364 /* XXX: always use linesize. Return -1 if not supported */
2365 int img_convert(AVPicture *dst, int dst_pix_fmt,
2366 const AVPicture *src, int src_pix_fmt,
2367 int src_width, int src_height)
2369 static int initialized;
2370 int i, ret, dst_width, dst_height, int_pix_fmt;
2371 const PixFmtInfo *src_pix, *dst_pix;
2372 const ConvertEntry *ce;
2373 AVPicture tmp1, *tmp = &tmp1;
2375 if (src_pix_fmt < 0 || src_pix_fmt >= PIX_FMT_NB ||
2376 dst_pix_fmt < 0 || dst_pix_fmt >= PIX_FMT_NB)
2378 if (src_width <= 0 || src_height <= 0)
2386 dst_width = src_width;
2387 dst_height = src_height;
2389 dst_pix = &pix_fmt_info[dst_pix_fmt];
2390 src_pix = &pix_fmt_info[src_pix_fmt];
2391 if (src_pix_fmt == dst_pix_fmt) {
2392 /* no conversion needed: just copy */
2393 av_picture_copy(dst, src, dst_pix_fmt, dst_width, dst_height);
2397 ce = &convert_table[src_pix_fmt][dst_pix_fmt];
2399 /* specific conversion routine */
2400 ce->convert(dst, src, dst_width, dst_height);
2405 if (is_yuv_planar(dst_pix) &&
2406 src_pix_fmt == PIX_FMT_GRAY8) {
2410 if (dst_pix->color_type == FF_COLOR_YUV_JPEG) {
2411 ff_img_copy_plane(dst->data[0], dst->linesize[0],
2412 src->data[0], src->linesize[0],
2413 dst_width, dst_height);
2415 img_apply_table(dst->data[0], dst->linesize[0],
2416 src->data[0], src->linesize[0],
2417 dst_width, dst_height,
2420 /* fill U and V with 128 */
2423 w >>= dst_pix->x_chroma_shift;
2424 h >>= dst_pix->y_chroma_shift;
2425 for(i = 1; i <= 2; i++) {
2427 for(y = 0; y< h; y++) {
2429 d += dst->linesize[i];
2436 if (is_yuv_planar(src_pix) &&
2437 dst_pix_fmt == PIX_FMT_GRAY8) {
2438 if (src_pix->color_type == FF_COLOR_YUV_JPEG) {
2439 ff_img_copy_plane(dst->data[0], dst->linesize[0],
2440 src->data[0], src->linesize[0],
2441 dst_width, dst_height);
2443 img_apply_table(dst->data[0], dst->linesize[0],
2444 src->data[0], src->linesize[0],
2445 dst_width, dst_height,
2451 /* YUV to YUV planar */
2452 if (is_yuv_planar(dst_pix) && is_yuv_planar(src_pix)) {
2453 int x_shift, y_shift, w, h, xy_shift;
2454 void (*resize_func)(uint8_t *dst, int dst_wrap,
2455 const uint8_t *src, int src_wrap,
2456 int width, int height);
2458 /* compute chroma size of the smallest dimensions */
2461 if (dst_pix->x_chroma_shift >= src_pix->x_chroma_shift)
2462 w >>= dst_pix->x_chroma_shift;
2464 w >>= src_pix->x_chroma_shift;
2465 if (dst_pix->y_chroma_shift >= src_pix->y_chroma_shift)
2466 h >>= dst_pix->y_chroma_shift;
2468 h >>= src_pix->y_chroma_shift;
2470 x_shift = (dst_pix->x_chroma_shift - src_pix->x_chroma_shift);
2471 y_shift = (dst_pix->y_chroma_shift - src_pix->y_chroma_shift);
2472 xy_shift = ((x_shift & 0xf) << 4) | (y_shift & 0xf);
2473 /* there must be filters for conversion at least from and to
2477 resize_func = ff_img_copy_plane;
2480 resize_func = shrink21;
2483 resize_func = shrink41;
2486 resize_func = shrink12;
2489 resize_func = ff_shrink22;
2492 resize_func = ff_shrink44;
2495 resize_func = grow21;
2498 resize_func = grow12;
2501 resize_func = grow41;
2504 resize_func = grow22;
2507 resize_func = grow44;
2510 resize_func = conv411;
2513 /* currently not handled */
2514 goto no_chroma_filter;
2517 ff_img_copy_plane(dst->data[0], dst->linesize[0],
2518 src->data[0], src->linesize[0],
2519 dst_width, dst_height);
2521 for(i = 1;i <= 2; i++)
2522 resize_func(dst->data[i], dst->linesize[i],
2523 src->data[i], src->linesize[i],
2524 dst_width>>dst_pix->x_chroma_shift, dst_height>>dst_pix->y_chroma_shift);
2525 /* if yuv color space conversion is needed, we do it here on
2526 the destination image */
2527 if (dst_pix->color_type != src_pix->color_type) {
2528 const uint8_t *y_table, *c_table;
2529 if (dst_pix->color_type == FF_COLOR_YUV) {
2530 y_table = y_jpeg_to_ccir;
2531 c_table = c_jpeg_to_ccir;
2533 y_table = y_ccir_to_jpeg;
2534 c_table = c_ccir_to_jpeg;
2536 img_apply_table(dst->data[0], dst->linesize[0],
2537 dst->data[0], dst->linesize[0],
2538 dst_width, dst_height,
2541 for(i = 1;i <= 2; i++)
2542 img_apply_table(dst->data[i], dst->linesize[i],
2543 dst->data[i], dst->linesize[i],
2544 dst_width>>dst_pix->x_chroma_shift,
2545 dst_height>>dst_pix->y_chroma_shift,
2552 /* try to use an intermediate format */
2553 if (src_pix_fmt == PIX_FMT_YUYV422 ||
2554 dst_pix_fmt == PIX_FMT_YUYV422) {
2555 /* specific case: convert to YUV422P first */
2556 int_pix_fmt = PIX_FMT_YUV422P;
2557 } else if (src_pix_fmt == PIX_FMT_UYVY422 ||
2558 dst_pix_fmt == PIX_FMT_UYVY422) {
2559 /* specific case: convert to YUV422P first */
2560 int_pix_fmt = PIX_FMT_YUV422P;
2561 } else if (src_pix_fmt == PIX_FMT_UYYVYY411 ||
2562 dst_pix_fmt == PIX_FMT_UYYVYY411) {
2563 /* specific case: convert to YUV411P first */
2564 int_pix_fmt = PIX_FMT_YUV411P;
2565 } else if ((src_pix->color_type == FF_COLOR_GRAY &&
2566 src_pix_fmt != PIX_FMT_GRAY8) ||
2567 (dst_pix->color_type == FF_COLOR_GRAY &&
2568 dst_pix_fmt != PIX_FMT_GRAY8)) {
2569 /* gray8 is the normalized format */
2570 int_pix_fmt = PIX_FMT_GRAY8;
2571 } else if ((is_yuv_planar(src_pix) &&
2572 src_pix_fmt != PIX_FMT_YUV444P &&
2573 src_pix_fmt != PIX_FMT_YUVJ444P)) {
2574 /* yuv444 is the normalized format */
2575 if (src_pix->color_type == FF_COLOR_YUV_JPEG)
2576 int_pix_fmt = PIX_FMT_YUVJ444P;
2578 int_pix_fmt = PIX_FMT_YUV444P;
2579 } else if ((is_yuv_planar(dst_pix) &&
2580 dst_pix_fmt != PIX_FMT_YUV444P &&
2581 dst_pix_fmt != PIX_FMT_YUVJ444P)) {
2582 /* yuv444 is the normalized format */
2583 if (dst_pix->color_type == FF_COLOR_YUV_JPEG)
2584 int_pix_fmt = PIX_FMT_YUVJ444P;
2586 int_pix_fmt = PIX_FMT_YUV444P;
2588 /* the two formats are rgb or gray8 or yuv[j]444p */
2589 if (src_pix->is_alpha && dst_pix->is_alpha)
2590 int_pix_fmt = PIX_FMT_RGB32;
2592 int_pix_fmt = PIX_FMT_RGB24;
2594 if (src_pix_fmt == int_pix_fmt)
2596 if (avpicture_alloc(tmp, int_pix_fmt, dst_width, dst_height) < 0)
2599 if (img_convert(tmp, int_pix_fmt,
2600 src, src_pix_fmt, src_width, src_height) < 0)
2602 if (img_convert(dst, dst_pix_fmt,
2603 tmp, int_pix_fmt, dst_width, dst_height) < 0)
2607 avpicture_free(tmp);
2612 /* NOTE: we scan all the pixels to have an exact information */
2613 static int get_alpha_info_pal8(const AVPicture *src, int width, int height)
2615 const unsigned char *p;
2616 int src_wrap, ret, x, y;
2618 uint32_t *palette = (uint32_t *)src->data[1];
2621 src_wrap = src->linesize[0] - width;
2623 for(y=0;y<height;y++) {
2624 for(x=0;x<width;x++) {
2625 a = palette[p[0]] >> 24;
2627 ret |= FF_ALPHA_TRANSP;
2628 } else if (a != 0xff) {
2629 ret |= FF_ALPHA_SEMI_TRANSP;
2638 int img_get_alpha_info(const AVPicture *src,
2639 int pix_fmt, int width, int height)
2641 const PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
2644 pf = &pix_fmt_info[pix_fmt];
2645 /* no alpha can be represented in format */
2650 ret = get_alpha_info_rgb32(src, width, height);
2653 ret = get_alpha_info_pal8(src, width, height);
2656 /* we do not know, so everything is indicated */
2657 ret = FF_ALPHA_TRANSP | FF_ALPHA_SEMI_TRANSP;
2664 #define DEINT_INPLACE_LINE_LUM \
2665 movd_m2r(lum_m4[0],mm0);\
2666 movd_m2r(lum_m3[0],mm1);\
2667 movd_m2r(lum_m2[0],mm2);\
2668 movd_m2r(lum_m1[0],mm3);\
2669 movd_m2r(lum[0],mm4);\
2670 punpcklbw_r2r(mm7,mm0);\
2671 movd_r2m(mm2,lum_m4[0]);\
2672 punpcklbw_r2r(mm7,mm1);\
2673 punpcklbw_r2r(mm7,mm2);\
2674 punpcklbw_r2r(mm7,mm3);\
2675 punpcklbw_r2r(mm7,mm4);\
2676 paddw_r2r(mm3,mm1);\
2678 paddw_r2r(mm4,mm0);\
2680 paddw_r2r(mm6,mm2);\
2681 paddw_r2r(mm2,mm1);\
2682 psubusw_r2r(mm0,mm1);\
2684 packuswb_r2r(mm7,mm1);\
2685 movd_r2m(mm1,lum_m2[0]);
2687 #define DEINT_LINE_LUM \
2688 movd_m2r(lum_m4[0],mm0);\
2689 movd_m2r(lum_m3[0],mm1);\
2690 movd_m2r(lum_m2[0],mm2);\
2691 movd_m2r(lum_m1[0],mm3);\
2692 movd_m2r(lum[0],mm4);\
2693 punpcklbw_r2r(mm7,mm0);\
2694 punpcklbw_r2r(mm7,mm1);\
2695 punpcklbw_r2r(mm7,mm2);\
2696 punpcklbw_r2r(mm7,mm3);\
2697 punpcklbw_r2r(mm7,mm4);\
2698 paddw_r2r(mm3,mm1);\
2700 paddw_r2r(mm4,mm0);\
2702 paddw_r2r(mm6,mm2);\
2703 paddw_r2r(mm2,mm1);\
2704 psubusw_r2r(mm0,mm1);\
2706 packuswb_r2r(mm7,mm1);\
2707 movd_r2m(mm1,dst[0]);
2710 /* filter parameters: [-1 4 2 4 -1] // 8 */
2711 static void deinterlace_line(uint8_t *dst,
2712 const uint8_t *lum_m4, const uint8_t *lum_m3,
2713 const uint8_t *lum_m2, const uint8_t *lum_m1,
2718 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
2721 for(;size > 0;size--) {
2723 sum += lum_m3[0] << 2;
2724 sum += lum_m2[0] << 1;
2725 sum += lum_m1[0] << 2;
2727 dst[0] = cm[(sum + 4) >> 3];
2744 movq_m2r(rounder,mm6);
2746 for (;size > 3; size-=4) {
2757 static void deinterlace_line_inplace(uint8_t *lum_m4, uint8_t *lum_m3, uint8_t *lum_m2, uint8_t *lum_m1, uint8_t *lum,
2761 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
2764 for(;size > 0;size--) {
2766 sum += lum_m3[0] << 2;
2767 sum += lum_m2[0] << 1;
2768 lum_m4[0]=lum_m2[0];
2769 sum += lum_m1[0] << 2;
2771 lum_m2[0] = cm[(sum + 4) >> 3];
2787 movq_m2r(rounder,mm6);
2789 for (;size > 3; size-=4) {
2790 DEINT_INPLACE_LINE_LUM
2800 /* deinterlacing : 2 temporal taps, 3 spatial taps linear filter. The
2801 top field is copied as is, but the bottom field is deinterlaced
2802 against the top field. */
2803 static void deinterlace_bottom_field(uint8_t *dst, int dst_wrap,
2804 const uint8_t *src1, int src_wrap,
2805 int width, int height)
2807 const uint8_t *src_m2, *src_m1, *src_0, *src_p1, *src_p2;
2812 src_0=&src_m1[src_wrap];
2813 src_p1=&src_0[src_wrap];
2814 src_p2=&src_p1[src_wrap];
2815 for(y=0;y<(height-2);y+=2) {
2816 memcpy(dst,src_m1,width);
2818 deinterlace_line(dst,src_m2,src_m1,src_0,src_p1,src_p2,width);
2822 src_p1 += 2*src_wrap;
2823 src_p2 += 2*src_wrap;
2826 memcpy(dst,src_m1,width);
2829 deinterlace_line(dst,src_m2,src_m1,src_0,src_0,src_0,width);
2832 static void deinterlace_bottom_field_inplace(uint8_t *src1, int src_wrap,
2833 int width, int height)
2835 uint8_t *src_m1, *src_0, *src_p1, *src_p2;
2838 buf = (uint8_t*)av_malloc(width);
2841 memcpy(buf,src_m1,width);
2842 src_0=&src_m1[src_wrap];
2843 src_p1=&src_0[src_wrap];
2844 src_p2=&src_p1[src_wrap];
2845 for(y=0;y<(height-2);y+=2) {
2846 deinterlace_line_inplace(buf,src_m1,src_0,src_p1,src_p2,width);
2849 src_p1 += 2*src_wrap;
2850 src_p2 += 2*src_wrap;
2853 deinterlace_line_inplace(buf,src_m1,src_0,src_0,src_0,width);
2857 int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2858 int pix_fmt, int width, int height)
2862 if (pix_fmt != PIX_FMT_YUV420P &&
2863 pix_fmt != PIX_FMT_YUV422P &&
2864 pix_fmt != PIX_FMT_YUV444P &&
2865 pix_fmt != PIX_FMT_YUV411P &&
2866 pix_fmt != PIX_FMT_GRAY8)
2868 if ((width & 3) != 0 || (height & 3) != 0)
2874 case PIX_FMT_YUV420P:
2878 case PIX_FMT_YUV422P:
2881 case PIX_FMT_YUV411P:
2887 if (pix_fmt == PIX_FMT_GRAY8) {
2892 deinterlace_bottom_field_inplace(dst->data[i], dst->linesize[i],
2895 deinterlace_bottom_field(dst->data[i],dst->linesize[i],
2896 src->data[i], src->linesize[i],