2 * pixel format descriptor
3 * Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
5 * This file is part of Libav.
7 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 #include "intreadwrite.h"
29 void av_read_image_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4],
30 const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component)
32 AVComponentDescriptor comp= desc->comp[c];
33 int plane= comp.plane;
34 int depth= comp.depth_minus1+1;
35 int mask = (1<<depth)-1;
36 int shift= comp.shift;
37 int step = comp.step_minus1+1;
38 int flags= desc->flags;
40 if (flags & PIX_FMT_BITSTREAM){
41 int skip = x*step + comp.offset_plus1-1;
42 const uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
43 int shift = 8 - depth - (skip&7);
46 int val = (*p >> shift) & mask;
47 if(read_pal_component)
48 val= data[1][4*val + c];
55 const uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
56 int is_8bit = shift + depth <= 8;
59 p += !!(flags & PIX_FMT_BE);
62 int val = is_8bit ? *p :
63 flags & PIX_FMT_BE ? AV_RB16(p) : AV_RL16(p);
64 val = (val>>shift) & mask;
65 if(read_pal_component)
66 val= data[1][4*val + c];
73 void av_write_image_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],
74 const AVPixFmtDescriptor *desc, int x, int y, int c, int w)
76 AVComponentDescriptor comp = desc->comp[c];
77 int plane = comp.plane;
78 int depth = comp.depth_minus1+1;
79 int step = comp.step_minus1+1;
80 int flags = desc->flags;
82 if (flags & PIX_FMT_BITSTREAM) {
83 int skip = x*step + comp.offset_plus1-1;
84 uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
85 int shift = 8 - depth - (skip&7);
88 *p |= *src++ << shift;
94 int shift = comp.shift;
95 uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
97 if (shift + depth <= 8) {
98 p += !!(flags & PIX_FMT_BE);
100 *p |= (*src++<<shift);
105 if (flags & PIX_FMT_BE) {
106 uint16_t val = AV_RB16(p) | (*src++<<shift);
109 uint16_t val = AV_RL16(p) | (*src++<<shift);
118 const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
119 [PIX_FMT_YUV420P] = {
129 .flags = PIX_FMT_PLANAR,
131 [PIX_FMT_YUYV422] = {
152 .flags = PIX_FMT_RGB,
164 .flags = PIX_FMT_RGB,
166 [PIX_FMT_YUV422P] = {
176 .flags = PIX_FMT_PLANAR,
178 [PIX_FMT_YUV444P] = {
188 .flags = PIX_FMT_PLANAR,
190 [PIX_FMT_YUV410P] = {
200 .flags = PIX_FMT_PLANAR,
202 [PIX_FMT_YUV411P] = {
212 .flags = PIX_FMT_PLANAR,
222 .flags = PIX_FMT_PAL,
224 [PIX_FMT_MONOWHITE] = {
232 .flags = PIX_FMT_BITSTREAM,
234 [PIX_FMT_MONOBLACK] = {
242 .flags = PIX_FMT_BITSTREAM,
252 .flags = PIX_FMT_PAL,
254 [PIX_FMT_YUVJ420P] = {
264 .flags = PIX_FMT_PLANAR,
266 [PIX_FMT_YUVJ422P] = {
276 .flags = PIX_FMT_PLANAR,
278 [PIX_FMT_YUVJ444P] = {
288 .flags = PIX_FMT_PLANAR,
290 [PIX_FMT_XVMC_MPEG2_MC] = {
292 .flags = PIX_FMT_HWACCEL,
294 [PIX_FMT_XVMC_MPEG2_IDCT] = {
296 .flags = PIX_FMT_HWACCEL,
298 [PIX_FMT_UYVY422] = {
309 [PIX_FMT_UYYVYY411] = {
330 .flags = PIX_FMT_PAL | PIX_FMT_RGB,
342 .flags = PIX_FMT_BITSTREAM | PIX_FMT_RGB,
344 [PIX_FMT_BGR4_BYTE] = {
354 .flags = PIX_FMT_PAL | PIX_FMT_RGB,
366 .flags = PIX_FMT_PAL | PIX_FMT_RGB,
378 .flags = PIX_FMT_BITSTREAM | PIX_FMT_RGB,
380 [PIX_FMT_RGB4_BYTE] = {
390 .flags = PIX_FMT_PAL | PIX_FMT_RGB,
402 .flags = PIX_FMT_PLANAR,
414 .flags = PIX_FMT_PLANAR,
427 .flags = PIX_FMT_RGB,
440 .flags = PIX_FMT_RGB,
453 .flags = PIX_FMT_RGB,
466 .flags = PIX_FMT_RGB,
468 [PIX_FMT_GRAY16BE] = {
474 {0,1,1,0,15}, /* Y */
478 [PIX_FMT_GRAY16LE] = {
484 {0,1,1,0,15}, /* Y */
487 [PIX_FMT_YUV440P] = {
497 .flags = PIX_FMT_PLANAR,
499 [PIX_FMT_YUVJ440P] = {
509 .flags = PIX_FMT_PLANAR,
511 [PIX_FMT_YUVA420P] = {
522 .flags = PIX_FMT_PLANAR,
524 [PIX_FMT_VDPAU_H264] = {
525 .name = "vdpau_h264",
528 .flags = PIX_FMT_HWACCEL,
530 [PIX_FMT_VDPAU_MPEG1] = {
531 .name = "vdpau_mpeg1",
534 .flags = PIX_FMT_HWACCEL,
536 [PIX_FMT_VDPAU_MPEG2] = {
537 .name = "vdpau_mpeg2",
540 .flags = PIX_FMT_HWACCEL,
542 [PIX_FMT_VDPAU_WMV3] = {
543 .name = "vdpau_wmv3",
546 .flags = PIX_FMT_HWACCEL,
548 [PIX_FMT_VDPAU_VC1] = {
552 .flags = PIX_FMT_HWACCEL,
554 [PIX_FMT_VDPAU_MPEG4] = {
555 .name = "vdpau_mpeg4",
558 .flags = PIX_FMT_HWACCEL,
560 [PIX_FMT_RGB48BE] = {
566 {0,5,1,0,15}, /* R */
567 {0,5,3,0,15}, /* G */
568 {0,5,5,0,15}, /* B */
572 [PIX_FMT_RGB48LE] = {
578 {0,5,1,0,15}, /* R */
579 {0,5,3,0,15}, /* G */
580 {0,5,5,0,15}, /* B */
582 .flags = PIX_FMT_RGB,
584 [PIX_FMT_RGB565BE] = {
594 .flags = PIX_FMT_BE | PIX_FMT_RGB,
596 [PIX_FMT_RGB565LE] = {
606 .flags = PIX_FMT_RGB,
608 [PIX_FMT_RGB555BE] = {
618 .flags = PIX_FMT_BE | PIX_FMT_RGB,
620 [PIX_FMT_RGB555LE] = {
630 .flags = PIX_FMT_RGB,
632 [PIX_FMT_RGB444BE] = {
642 .flags = PIX_FMT_BE | PIX_FMT_RGB,
644 [PIX_FMT_RGB444LE] = {
654 .flags = PIX_FMT_RGB,
656 [PIX_FMT_BGR48BE] = {
662 {0,5,1,0,15}, /* B */
663 {0,5,3,0,15}, /* G */
664 {0,5,5,0,15}, /* R */
666 .flags = PIX_FMT_BE | PIX_FMT_RGB,
668 [PIX_FMT_BGR48LE] = {
674 {0,5,1,0,15}, /* B */
675 {0,5,3,0,15}, /* G */
676 {0,5,5,0,15}, /* R */
678 .flags = PIX_FMT_RGB,
680 [PIX_FMT_BGR565BE] = {
690 .flags = PIX_FMT_BE | PIX_FMT_RGB,
692 [PIX_FMT_BGR565LE] = {
702 .flags = PIX_FMT_RGB,
704 [PIX_FMT_BGR555BE] = {
714 .flags = PIX_FMT_BE | PIX_FMT_RGB,
716 [PIX_FMT_BGR555LE] = {
726 .flags = PIX_FMT_RGB,
728 [PIX_FMT_BGR444BE] = {
738 .flags = PIX_FMT_BE | PIX_FMT_RGB,
740 [PIX_FMT_BGR444LE] = {
750 .flags = PIX_FMT_RGB,
752 [PIX_FMT_VAAPI_MOCO] = {
753 .name = "vaapi_moco",
756 .flags = PIX_FMT_HWACCEL,
758 [PIX_FMT_VAAPI_IDCT] = {
759 .name = "vaapi_idct",
762 .flags = PIX_FMT_HWACCEL,
764 [PIX_FMT_VAAPI_VLD] = {
768 .flags = PIX_FMT_HWACCEL,
770 [PIX_FMT_VDA_VLD] = {
774 .flags = PIX_FMT_HWACCEL,
776 [PIX_FMT_YUV420P9LE] = {
777 .name = "yuv420p9le",
786 .flags = PIX_FMT_PLANAR,
788 [PIX_FMT_YUV420P9BE] = {
789 .name = "yuv420p9be",
798 .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
800 [PIX_FMT_YUV420P10LE] = {
801 .name = "yuv420p10le",
810 .flags = PIX_FMT_PLANAR,
812 [PIX_FMT_YUV420P10BE] = {
813 .name = "yuv420p10be",
822 .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
824 [PIX_FMT_YUV420P16LE] = {
825 .name = "yuv420p16le",
830 {0,1,1,0,15}, /* Y */
831 {1,1,1,0,15}, /* U */
832 {2,1,1,0,15}, /* V */
834 .flags = PIX_FMT_PLANAR,
836 [PIX_FMT_YUV420P16BE] = {
837 .name = "yuv420p16be",
842 {0,1,1,0,15}, /* Y */
843 {1,1,1,0,15}, /* U */
844 {2,1,1,0,15}, /* V */
846 .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
848 [PIX_FMT_YUV422P9LE] = {
849 .name = "yuv422p9le",
858 .flags = PIX_FMT_PLANAR,
860 [PIX_FMT_YUV422P9BE] = {
861 .name = "yuv422p9be",
870 .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
872 [PIX_FMT_YUV422P10LE] = {
873 .name = "yuv422p10le",
882 .flags = PIX_FMT_PLANAR,
884 [PIX_FMT_YUV422P10BE] = {
885 .name = "yuv422p10be",
894 .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
896 [PIX_FMT_YUV422P16LE] = {
897 .name = "yuv422p16le",
902 {0,1,1,0,15}, /* Y */
903 {1,1,1,0,15}, /* U */
904 {2,1,1,0,15}, /* V */
906 .flags = PIX_FMT_PLANAR,
908 [PIX_FMT_YUV422P16BE] = {
909 .name = "yuv422p16be",
914 {0,1,1,0,15}, /* Y */
915 {1,1,1,0,15}, /* U */
916 {2,1,1,0,15}, /* V */
918 .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
920 [PIX_FMT_YUV444P16LE] = {
921 .name = "yuv444p16le",
926 {0,1,1,0,15}, /* Y */
927 {1,1,1,0,15}, /* U */
928 {2,1,1,0,15}, /* V */
930 .flags = PIX_FMT_PLANAR,
932 [PIX_FMT_YUV444P16BE] = {
933 .name = "yuv444p16be",
938 {0,1,1,0,15}, /* Y */
939 {1,1,1,0,15}, /* U */
940 {2,1,1,0,15}, /* V */
942 .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
944 [PIX_FMT_YUV444P10LE] = {
945 .name = "yuv444p10le",
954 .flags = PIX_FMT_PLANAR,
956 [PIX_FMT_YUV444P10BE] = {
957 .name = "yuv444p10be",
966 .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
968 [PIX_FMT_YUV444P9LE] = {
969 .name = "yuv444p9le",
978 .flags = PIX_FMT_PLANAR,
980 [PIX_FMT_YUV444P9BE] = {
981 .name = "yuv444p9be",
990 .flags = PIX_FMT_BE | PIX_FMT_PLANAR,
992 [PIX_FMT_DXVA2_VLD] = {
996 .flags = PIX_FMT_HWACCEL,
1002 {0,1,1,0,7}, /* Y */
1003 {0,1,2,0,7}, /* A */
1012 {0,0,1,0,7}, /* G */
1013 {1,0,1,0,7}, /* B */
1014 {2,0,1,0,7}, /* R */
1016 .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,
1018 [PIX_FMT_GBRP9LE] = {
1024 {0,1,1,0,8}, /* G */
1025 {1,1,1,0,8}, /* B */
1026 {2,1,1,0,8}, /* R */
1028 .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,
1030 [PIX_FMT_GBRP9BE] = {
1036 {0,1,1,0,8}, /* G */
1037 {1,1,1,0,8}, /* B */
1038 {2,1,1,0,8}, /* R */
1040 .flags = PIX_FMT_BE | PIX_FMT_PLANAR | PIX_FMT_RGB,
1042 [PIX_FMT_GBRP10LE] = {
1048 {0,1,1,0,9}, /* G */
1049 {1,1,1,0,9}, /* B */
1050 {2,1,1,0,9}, /* R */
1052 .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,
1054 [PIX_FMT_GBRP10BE] = {
1060 {0,1,1,0,9}, /* G */
1061 {1,1,1,0,9}, /* B */
1062 {2,1,1,0,9}, /* R */
1064 .flags = PIX_FMT_BE | PIX_FMT_PLANAR | PIX_FMT_RGB,
1066 [PIX_FMT_GBRP16LE] = {
1072 {0,1,1,0,15}, /* G */
1073 {1,1,1,0,15}, /* B */
1074 {2,1,1,0,15}, /* R */
1076 .flags = PIX_FMT_PLANAR | PIX_FMT_RGB,
1078 [PIX_FMT_GBRP16BE] = {
1084 {0,1,1,0,15}, /* G */
1085 {1,1,1,0,15}, /* B */
1086 {2,1,1,0,15}, /* R */
1088 .flags = PIX_FMT_BE | PIX_FMT_PLANAR | PIX_FMT_RGB,
1092 static enum PixelFormat get_pix_fmt_internal(const char *name)
1094 enum PixelFormat pix_fmt;
1096 for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
1097 if (av_pix_fmt_descriptors[pix_fmt].name &&
1098 !strcmp(av_pix_fmt_descriptors[pix_fmt].name, name))
1101 return PIX_FMT_NONE;
1104 const char *av_get_pix_fmt_name(enum PixelFormat pix_fmt)
1106 return (unsigned)pix_fmt < PIX_FMT_NB ?
1107 av_pix_fmt_descriptors[pix_fmt].name : NULL;
1111 # define X_NE(be, le) be
1113 # define X_NE(be, le) le
1116 enum PixelFormat av_get_pix_fmt(const char *name)
1118 enum PixelFormat pix_fmt;
1120 if (!strcmp(name, "rgb32"))
1121 name = X_NE("argb", "bgra");
1122 else if (!strcmp(name, "bgr32"))
1123 name = X_NE("abgr", "rgba");
1125 pix_fmt = get_pix_fmt_internal(name);
1126 if (pix_fmt == PIX_FMT_NONE) {
1129 snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));
1130 pix_fmt = get_pix_fmt_internal(name2);
1135 int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
1138 int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
1140 for (c = 0; c < pixdesc->nb_components; c++) {
1141 int s = c==1 || c==2 ? 0 : log2_pixels;
1142 bits += (pixdesc->comp[c].depth_minus1+1) << s;
1145 return bits >> log2_pixels;
1148 char *av_get_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)
1152 snprintf (buf, buf_size, "name " " nb_components" " nb_bits");
1154 const AVPixFmtDescriptor *pixdesc = &av_pix_fmt_descriptors[pix_fmt];
1155 snprintf(buf, buf_size, "%-11s %7d %10d",
1156 pixdesc->name, pixdesc->nb_components, av_get_bits_per_pixel(pixdesc));