1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*
* Copyright (c) 2015 Kevin Wheatley <kevin.j.wheatley@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <math.h>
#include <stdio.h>
#include "libavutil/csp.h"
#include "libavutil/macros.h"
#include "libavutil/pixdesc.h"
#include "libavutil/pixfmt.h"
int main(int argc, char *argv[])
{
static const double test_data[] = {
-0.1, -0.018053968510807, -0.01, -0.00449, 0.0, 0.00316227760, 0.005,
0.009, 0.015, 0.1, 1.0, 52.37, 125.098765, 1999.11123, 6945.443,
15123.4567, 19845.88923, 98678.4231, 99999.899998
};
for (enum AVColorTransferCharacteristic trc = 0; trc < AVCOL_TRC_NB; trc++) {
av_csp_trc_function func = av_csp_trc_func_from_id(trc);
av_csp_trc_function func_inv = av_csp_trc_func_inv_from_id(trc);
const char *name = av_color_transfer_name(trc);
if (!func)
continue;
for (int i = 0; i < FF_ARRAY_ELEMS(test_data); i++) {
double result = func(test_data[i]);
double roundtrip = func_inv(result);
printf("trc=%s calling func(%f) expected=%f roundtrip=%f\n",
name, test_data[i], result, roundtrip);
if (result > 0.0 && fabs(roundtrip - test_data[i]) > 1e-8) {
printf(" FAIL\n");
return 1;
}
}
}
}
|
