2 * pixel format descriptor
3 * Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
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
25 #include "intreadwrite.h"
27 void read_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4],
28 const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component)
30 AVComponentDescriptor comp= desc->comp[c];
31 int plane= comp.plane;
32 int depth= comp.depth_minus1+1;
33 int mask = (1<<depth)-1;
34 int shift= comp.shift;
35 int step = comp.step_minus1+1;
36 int flags= desc->flags;
38 if (flags & PIX_FMT_BITSTREAM){
39 int skip = x*step + comp.offset_plus1-1;
40 const uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
41 int shift = 8 - depth - (skip&7);
44 int val = (*p >> shift) & mask;
45 if(read_pal_component)
46 val= data[1][4*val + c];
53 const uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
57 if(flags & PIX_FMT_BE) val= AV_RB16(p);
59 val = (val>>shift) & mask;
60 if(read_pal_component)
61 val= data[1][4*val + c];
68 void write_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],
69 const AVPixFmtDescriptor *desc, int x, int y, int c, int w)
71 AVComponentDescriptor comp = desc->comp[c];
72 int plane = comp.plane;
73 int depth = comp.depth_minus1+1;
74 int step = comp.step_minus1+1;
75 int flags = desc->flags;
77 if (flags & PIX_FMT_BITSTREAM) {
78 int skip = x*step + comp.offset_plus1-1;
79 uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
80 int shift = 8 - depth - (skip&7);
83 *p |= *src++ << shift;
89 int shift = comp.shift;
90 uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
93 if (flags & PIX_FMT_BE) {
94 uint16_t val = AV_RB16(p) | (*src++<<shift);
97 uint16_t val = AV_RL16(p) | (*src++<<shift);
105 const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
106 [PIX_FMT_YUV420P] = {
117 [PIX_FMT_YUYV422] = {
150 [PIX_FMT_YUV422P] = {
161 [PIX_FMT_YUV444P] = {
172 [PIX_FMT_YUV410P] = {
183 [PIX_FMT_YUV411P] = {
202 .flags = PIX_FMT_PAL,
204 [PIX_FMT_MONOWHITE] = {
212 .flags = PIX_FMT_BITSTREAM,
214 [PIX_FMT_MONOBLACK] = {
222 .flags = PIX_FMT_BITSTREAM,
232 .flags = PIX_FMT_PAL,
234 [PIX_FMT_YUVJ420P] = {
245 [PIX_FMT_YUVJ422P] = {
256 [PIX_FMT_YUVJ444P] = {
267 [PIX_FMT_XVMC_MPEG2_MC] = {
269 .flags = PIX_FMT_HWACCEL,
271 [PIX_FMT_XVMC_MPEG2_IDCT] = {
273 .flags = PIX_FMT_HWACCEL,
275 [PIX_FMT_UYVY422] = {
286 [PIX_FMT_UYYVYY411] = {
307 .flags = PIX_FMT_PAL,
319 .flags = PIX_FMT_BITSTREAM,
321 [PIX_FMT_BGR4_BYTE] = {
331 .flags = PIX_FMT_PAL,
343 .flags = PIX_FMT_PAL,
355 .flags = PIX_FMT_BITSTREAM,
357 [PIX_FMT_RGB4_BYTE] = {
367 .flags = PIX_FMT_PAL,
439 [PIX_FMT_GRAY16BE] = {
445 {0,1,1,0,15}, /* Y */
449 [PIX_FMT_GRAY16LE] = {
455 {0,1,1,0,15}, /* Y */
458 [PIX_FMT_YUV440P] = {
469 [PIX_FMT_YUVJ440P] = {
480 [PIX_FMT_YUVA420P] = {
492 [PIX_FMT_VDPAU_H264] = {
493 .name = "vdpau_h264",
496 .flags = PIX_FMT_HWACCEL,
498 [PIX_FMT_VDPAU_MPEG1] = {
499 .name = "vdpau_mpeg1",
502 .flags = PIX_FMT_HWACCEL,
504 [PIX_FMT_VDPAU_MPEG2] = {
505 .name = "vdpau_mpeg2",
508 .flags = PIX_FMT_HWACCEL,
510 [PIX_FMT_VDPAU_WMV3] = {
511 .name = "vdpau_wmv3",
514 .flags = PIX_FMT_HWACCEL,
516 [PIX_FMT_VDPAU_VC1] = {
520 .flags = PIX_FMT_HWACCEL,
522 [PIX_FMT_VDPAU_MPEG4] = {
523 .name = "vdpau_mpeg4",
526 .flags = PIX_FMT_HWACCEL,
528 [PIX_FMT_RGB48BE] = {
534 {0,5,1,0,15}, /* R */
535 {0,5,3,0,15}, /* G */
536 {0,5,5,0,15}, /* B */
540 [PIX_FMT_RGB48LE] = {
546 {0,5,1,0,15}, /* R */
547 {0,5,3,0,15}, /* G */
548 {0,5,5,0,15}, /* B */
551 [PIX_FMT_RGB565BE] = {
563 [PIX_FMT_RGB565LE] = {
574 [PIX_FMT_RGB555BE] = {
586 [PIX_FMT_RGB555LE] = {
597 [PIX_FMT_RGB444BE] = {
609 [PIX_FMT_RGB444LE] = {
620 [PIX_FMT_BGR565BE] = {
632 [PIX_FMT_BGR565LE] = {
643 [PIX_FMT_BGR555BE] = {
655 [PIX_FMT_BGR555LE] = {
666 [PIX_FMT_BGR444BE] = {
678 [PIX_FMT_BGR444LE] = {
689 [PIX_FMT_VAAPI_MOCO] = {
690 .name = "vaapi_moco",
693 .flags = PIX_FMT_HWACCEL,
695 [PIX_FMT_VAAPI_IDCT] = {
696 .name = "vaapi_idct",
699 .flags = PIX_FMT_HWACCEL,
701 [PIX_FMT_VAAPI_VLD] = {
705 .flags = PIX_FMT_HWACCEL,
707 [PIX_FMT_YUV420P16LE] = {
708 .name = "yuv420p16le",
713 {0,1,1,0,15}, /* Y */
714 {1,1,1,0,15}, /* U */
715 {2,1,1,0,15}, /* V */
718 [PIX_FMT_YUV420P16BE] = {
719 .name = "yuv420p16be",
724 {0,1,1,0,15}, /* Y */
725 {1,1,1,0,15}, /* U */
726 {2,1,1,0,15}, /* V */
730 [PIX_FMT_YUV422P16LE] = {
731 .name = "yuv422p16le",
736 {0,1,1,0,15}, /* Y */
737 {1,1,1,0,15}, /* U */
738 {2,1,1,0,15}, /* V */
741 [PIX_FMT_YUV422P16BE] = {
742 .name = "yuv422p16be",
747 {0,1,1,0,15}, /* Y */
748 {1,1,1,0,15}, /* U */
749 {2,1,1,0,15}, /* V */
753 [PIX_FMT_YUV444P16LE] = {
754 .name = "yuv444p16le",
759 {0,1,1,0,15}, /* Y */
760 {1,1,1,0,15}, /* U */
761 {2,1,1,0,15}, /* V */
764 [PIX_FMT_YUV444P16BE] = {
765 .name = "yuv444p16be",
770 {0,1,1,0,15}, /* Y */
771 {1,1,1,0,15}, /* U */
772 {2,1,1,0,15}, /* V */
776 [PIX_FMT_DXVA2_VLD] = {
780 .flags = PIX_FMT_HWACCEL,
792 static enum PixelFormat get_pix_fmt_internal(const char *name)
794 enum PixelFormat pix_fmt;
796 for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
797 if (av_pix_fmt_descriptors[pix_fmt].name &&
798 !strcmp(av_pix_fmt_descriptors[pix_fmt].name, name))
805 # define X_NE(be, le) be
807 # define X_NE(be, le) le
810 enum PixelFormat av_get_pix_fmt(const char *name)
812 enum PixelFormat pix_fmt;
814 if (!strcmp(name, "rgb32"))
815 name = X_NE("argb", "bgra");
816 else if (!strcmp(name, "bgr32"))
817 name = X_NE("abgr", "rgba");
819 pix_fmt = get_pix_fmt_internal(name);
820 if (pix_fmt == PIX_FMT_NONE) {
823 snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));
824 pix_fmt = get_pix_fmt_internal(name2);
829 int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
832 int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
834 for (c = 0; c < pixdesc->nb_components; c++) {
835 int s = c==1 || c==2 ? 0 : log2_pixels;
836 bits += (pixdesc->comp[c].depth_minus1+1) << s;
839 return bits >> log2_pixels;