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
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] = {
130 [PIX_FMT_YUYV422] = {
163 [PIX_FMT_YUV422P] = {
174 [PIX_FMT_YUV444P] = {
185 [PIX_FMT_YUV410P] = {
196 [PIX_FMT_YUV411P] = {
215 .flags = PIX_FMT_PAL,
217 [PIX_FMT_MONOWHITE] = {
225 .flags = PIX_FMT_BITSTREAM,
227 [PIX_FMT_MONOBLACK] = {
235 .flags = PIX_FMT_BITSTREAM,
245 .flags = PIX_FMT_PAL,
247 [PIX_FMT_YUVJ420P] = {
258 [PIX_FMT_YUVJ422P] = {
269 [PIX_FMT_YUVJ444P] = {
280 [PIX_FMT_XVMC_MPEG2_MC] = {
282 .flags = PIX_FMT_HWACCEL,
284 [PIX_FMT_XVMC_MPEG2_IDCT] = {
286 .flags = PIX_FMT_HWACCEL,
288 [PIX_FMT_UYVY422] = {
299 [PIX_FMT_UYYVYY411] = {
320 .flags = PIX_FMT_PAL,
332 .flags = PIX_FMT_BITSTREAM,
334 [PIX_FMT_BGR4_BYTE] = {
344 .flags = PIX_FMT_PAL,
356 .flags = PIX_FMT_PAL,
368 .flags = PIX_FMT_BITSTREAM,
370 [PIX_FMT_RGB4_BYTE] = {
380 .flags = PIX_FMT_PAL,
452 [PIX_FMT_GRAY16BE] = {
458 {0,1,1,0,15}, /* Y */
462 [PIX_FMT_GRAY16LE] = {
468 {0,1,1,0,15}, /* Y */
471 [PIX_FMT_YUV440P] = {
482 [PIX_FMT_YUVJ440P] = {
493 [PIX_FMT_YUVA420P] = {
505 [PIX_FMT_VDPAU_H264] = {
506 .name = "vdpau_h264",
509 .flags = PIX_FMT_HWACCEL,
511 [PIX_FMT_VDPAU_MPEG1] = {
512 .name = "vdpau_mpeg1",
515 .flags = PIX_FMT_HWACCEL,
517 [PIX_FMT_VDPAU_MPEG2] = {
518 .name = "vdpau_mpeg2",
521 .flags = PIX_FMT_HWACCEL,
523 [PIX_FMT_VDPAU_WMV3] = {
524 .name = "vdpau_wmv3",
527 .flags = PIX_FMT_HWACCEL,
529 [PIX_FMT_VDPAU_VC1] = {
533 .flags = PIX_FMT_HWACCEL,
535 [PIX_FMT_VDPAU_MPEG4] = {
536 .name = "vdpau_mpeg4",
539 .flags = PIX_FMT_HWACCEL,
541 [PIX_FMT_RGB48BE] = {
547 {0,5,1,0,15}, /* R */
548 {0,5,3,0,15}, /* G */
549 {0,5,5,0,15}, /* B */
553 [PIX_FMT_RGB48LE] = {
559 {0,5,1,0,15}, /* R */
560 {0,5,3,0,15}, /* G */
561 {0,5,5,0,15}, /* B */
564 [PIX_FMT_RGB565BE] = {
576 [PIX_FMT_RGB565LE] = {
587 [PIX_FMT_RGB555BE] = {
599 [PIX_FMT_RGB555LE] = {
610 [PIX_FMT_RGB444BE] = {
622 [PIX_FMT_RGB444LE] = {
633 [PIX_FMT_BGR48BE] = {
639 {0,5,1,0,15}, /* B */
640 {0,5,3,0,15}, /* G */
641 {0,5,5,0,15}, /* R */
645 [PIX_FMT_BGR48LE] = {
651 {0,5,1,0,15}, /* B */
652 {0,5,3,0,15}, /* G */
653 {0,5,5,0,15}, /* R */
656 [PIX_FMT_BGR565BE] = {
668 [PIX_FMT_BGR565LE] = {
679 [PIX_FMT_BGR555BE] = {
691 [PIX_FMT_BGR555LE] = {
702 [PIX_FMT_BGR444BE] = {
714 [PIX_FMT_BGR444LE] = {
725 [PIX_FMT_VAAPI_MOCO] = {
726 .name = "vaapi_moco",
729 .flags = PIX_FMT_HWACCEL,
731 [PIX_FMT_VAAPI_IDCT] = {
732 .name = "vaapi_idct",
735 .flags = PIX_FMT_HWACCEL,
737 [PIX_FMT_VAAPI_VLD] = {
741 .flags = PIX_FMT_HWACCEL,
743 [PIX_FMT_YUV420P9LE] = {
744 .name = "yuv420p9le",
754 [PIX_FMT_YUV420P9BE] = {
755 .name = "yuv420p9be",
766 [PIX_FMT_YUV420P10LE] = {
767 .name = "yuv420p10le",
777 [PIX_FMT_YUV420P10BE] = {
778 .name = "yuv420p10be",
789 [PIX_FMT_YUV420P16LE] = {
790 .name = "yuv420p16le",
795 {0,1,1,0,15}, /* Y */
796 {1,1,1,0,15}, /* U */
797 {2,1,1,0,15}, /* V */
800 [PIX_FMT_YUV420P16BE] = {
801 .name = "yuv420p16be",
806 {0,1,1,0,15}, /* Y */
807 {1,1,1,0,15}, /* U */
808 {2,1,1,0,15}, /* V */
812 [PIX_FMT_YUV422P10LE] = {
813 .name = "yuv422p10le",
823 [PIX_FMT_YUV422P10BE] = {
824 .name = "yuv422p10be",
835 [PIX_FMT_YUV422P16LE] = {
836 .name = "yuv422p16le",
841 {0,1,1,0,15}, /* Y */
842 {1,1,1,0,15}, /* U */
843 {2,1,1,0,15}, /* V */
846 [PIX_FMT_YUV422P16BE] = {
847 .name = "yuv422p16be",
852 {0,1,1,0,15}, /* Y */
853 {1,1,1,0,15}, /* U */
854 {2,1,1,0,15}, /* V */
858 [PIX_FMT_YUV444P16LE] = {
859 .name = "yuv444p16le",
864 {0,1,1,0,15}, /* Y */
865 {1,1,1,0,15}, /* U */
866 {2,1,1,0,15}, /* V */
869 [PIX_FMT_YUV444P16BE] = {
870 .name = "yuv444p16be",
875 {0,1,1,0,15}, /* Y */
876 {1,1,1,0,15}, /* U */
877 {2,1,1,0,15}, /* V */
881 [PIX_FMT_YUV444P10LE] = {
882 .name = "yuv444p10le",
892 [PIX_FMT_YUV444P10BE] = {
893 .name = "yuv444p10be",
904 [PIX_FMT_YUV444P9LE] = {
905 .name = "yuv444p9le",
915 [PIX_FMT_YUV444P9BE] = {
916 .name = "yuv444p9be",
927 [PIX_FMT_DXVA2_VLD] = {
931 .flags = PIX_FMT_HWACCEL,
943 static enum PixelFormat get_pix_fmt_internal(const char *name)
945 enum PixelFormat pix_fmt;
947 for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
948 if (av_pix_fmt_descriptors[pix_fmt].name &&
949 !strcmp(av_pix_fmt_descriptors[pix_fmt].name, name))
955 const char *av_get_pix_fmt_name(enum PixelFormat pix_fmt)
957 return (unsigned)pix_fmt < PIX_FMT_NB ?
958 av_pix_fmt_descriptors[pix_fmt].name : NULL;
962 # define X_NE(be, le) be
964 # define X_NE(be, le) le
967 enum PixelFormat av_get_pix_fmt(const char *name)
969 enum PixelFormat pix_fmt;
971 if (!strcmp(name, "rgb32"))
972 name = X_NE("argb", "bgra");
973 else if (!strcmp(name, "bgr32"))
974 name = X_NE("abgr", "rgba");
976 pix_fmt = get_pix_fmt_internal(name);
977 if (pix_fmt == PIX_FMT_NONE) {
980 snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));
981 pix_fmt = get_pix_fmt_internal(name2);
986 int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
989 int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
991 for (c = 0; c < pixdesc->nb_components; c++) {
992 int s = c==1 || c==2 ? 0 : log2_pixels;
993 bits += (pixdesc->comp[c].depth_minus1+1) << s;
996 return bits >> log2_pixels;
999 char *av_get_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)
1003 snprintf (buf, buf_size, "name " " nb_components" " nb_bits");
1005 const AVPixFmtDescriptor *pixdesc = &av_pix_fmt_descriptors[pix_fmt];
1006 snprintf(buf, buf_size, "%-11s %7d %10d",
1007 pixdesc->name, pixdesc->nb_components, av_get_bits_per_pixel(pixdesc));