1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include "libavfilter/vf_nlmeans.c"
20
display_integral(const uint32_t * ii,int w,int h,int lz_32)21 static void display_integral(const uint32_t *ii, int w, int h, int lz_32)
22 {
23 int x, y;
24
25 for (y = 0; y < h; y++) {
26 for (x = 0; x < w; x++)
27 printf(" %7x", ii[y*lz_32 + x]);
28 printf("\n");
29 }
30 printf("---------------\n");
31 }
32
main(void)33 int main(void)
34 {
35 int ret = 0, xoff, yoff;
36 uint32_t *ii_start;
37 uint32_t *ii_start2;
38 NLMeansDSPContext dsp = {0};
39
40 // arbitrary test source of size 6x5 and linesize=8
41 const int w = 6, h = 5, lz = 8;
42 static const uint8_t src[] = {
43 0xb0, 0x71, 0xfb, 0xd8, 0x01, 0xd9, /***/ 0x01, 0x02,
44 0x51, 0x8e, 0x41, 0x0f, 0x84, 0x58, /***/ 0x03, 0x04,
45 0xc7, 0x8d, 0x07, 0x70, 0x5c, 0x47, /***/ 0x05, 0x06,
46 0x09, 0x4e, 0xfc, 0x74, 0x8f, 0x9a, /***/ 0x07, 0x08,
47 0x60, 0x8e, 0x20, 0xaa, 0x95, 0x7d, /***/ 0x09, 0x0a,
48 };
49
50 const int e = 3;
51 const int ii_w = w+e*2, ii_h = h+e*2;
52
53 // align to 4 the linesize, "+1" is for the space of the left 0-column
54 const int ii_lz_32 = ((ii_w + 1) + 3) & ~3;
55
56 // "+1" is for the space of the top 0-line
57 uint32_t *ii = av_mallocz_array(ii_h + 1, ii_lz_32 * sizeof(*ii));
58 uint32_t *ii2 = av_mallocz_array(ii_h + 1, ii_lz_32 * sizeof(*ii2));
59
60 if (!ii || !ii2)
61 return -1;
62
63 ii_start = ii + ii_lz_32 + 1; // skip top 0-line and left 0-column
64 ii_start2 = ii2 + ii_lz_32 + 1; // skip top 0-line and left 0-column
65
66 ff_nlmeans_init(&dsp);
67
68 for (yoff = -e; yoff <= e; yoff++) {
69 for (xoff = -e; xoff <= e; xoff++) {
70 printf("xoff=%d yoff=%d\n", xoff, yoff);
71
72 compute_ssd_integral_image(&dsp, ii_start, ii_lz_32,
73 src, lz, xoff, yoff, e, w, h);
74 display_integral(ii_start, ii_w, ii_h, ii_lz_32);
75
76 compute_unsafe_ssd_integral_image(ii_start2, ii_lz_32,
77 0, 0,
78 src, lz,
79 xoff, yoff, e, w, h,
80 ii_w, ii_h);
81 display_integral(ii_start2, ii_w, ii_h, ii_lz_32);
82
83 if (memcmp(ii, ii2, (ii_h+1) * ii_lz_32 * sizeof(*ii))) {
84 printf("Integral mismatch\n");
85 ret = 1;
86 goto end;
87 }
88 }
89 }
90
91 end:
92 av_freep(&ii);
93 av_freep(&ii2);
94 return ret;
95 }
96