1 /*
2  * Copyright (c) 2017 Clément Bœsch <u pkh me>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <stdlib.h>
22 
23 #include "libavutil/mem.h"
24 #include "libswscale/swscale_internal.h"
25 
26 static const struct {
27     const char *class;
28     int (*cond)(enum AVPixelFormat pix_fmt);
29 } query_tab[] = {
30     {"is16BPS",     is16BPS},
31     {"isNBPS",      isNBPS},
32     {"isBE",        isBE},
33     {"isYUV",       isYUV},
34     {"isPlanarYUV", isPlanarYUV},
35     {"isRGB",       isRGB},
36     {"Gray",        isGray},
37     {"RGBinInt",    isRGBinInt},
38     {"BGRinInt",    isBGRinInt},
39     {"Bayer",       isBayer},
40     {"AnyRGB",      isAnyRGB},
41     {"ALPHA",       isALPHA},
42     {"Packed",      isPacked},
43     {"Planar",      isPlanar},
44     {"PackedRGB",   isPackedRGB},
45     {"PlanarRGB",   isPlanarRGB},
46     {"usePal",      usePal},
47 };
48 
cmp_str(const void * a,const void * b)49 static int cmp_str(const void *a, const void *b)
50 {
51     const char *s1 = *(const char **)a;
52     const char *s2 = *(const char **)b;
53     return strcmp(s1, s2);
54 }
55 
main(void)56 int main(void)
57 {
58     int i, j;
59 
60     for (i = 0; i < FF_ARRAY_ELEMS(query_tab); i++) {
61         const char **pix_fmts = NULL;
62         int nb_pix_fmts = 0;
63         const AVPixFmtDescriptor *pix_desc = NULL;
64 
65         while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
66             enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
67             if (query_tab[i].cond(pix_fmt)) {
68                 const char *pix_name = pix_desc->name;
69                 if      (pix_fmt == AV_PIX_FMT_RGB32)   pix_name = "rgb32";
70                 else if (pix_fmt == AV_PIX_FMT_RGB32_1) pix_name = "rgb32_1";
71                 else if (pix_fmt == AV_PIX_FMT_BGR32)   pix_name = "bgr32";
72                 else if (pix_fmt == AV_PIX_FMT_BGR32_1) pix_name = "bgr32_1";
73 
74                 av_dynarray_add(&pix_fmts, &nb_pix_fmts, (void *)pix_name);
75             }
76         }
77 
78         if (pix_fmts) {
79             qsort(pix_fmts, nb_pix_fmts, sizeof(*pix_fmts), cmp_str);
80 
81             printf("%s:\n", query_tab[i].class);
82             for (j = 0; j < nb_pix_fmts; j++)
83                 printf("  %s\n", pix_fmts[j]);
84             printf("\n");
85 
86             av_free(pix_fmts);
87         }
88     }
89     return 0;
90 }
91