mpv/test/test_helpers.h

#ifndef MP_TESTS_H
#define MP_TESTS_H

#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <cmocka.h>

#include <stdio.h>
#include <math.h>
#include <float.h>

#define assert_double_equal(a, b) assert_true(fabs((a) - (b)) <= DBL_EPSILON * fmax(fabs(a), fabs(b)))
#define assert_float_equal(a, b) assert_true(fabsf((a) - (b)) <= FLT_EPSILON * fmaxf(fabsf(a), fabsf(b)))

#endif
chmap_sel: add multichannel fallback heuristic Instead of just failing during channel map selection, try to select a close layout that makes most sense and upmix/downmix to that instead of failing AO initialization. The heuristic is rather simple, and uses the following steps: 1) If mono is required always prefer stereo to a multichannel upmix. 2) Search for an upmix that is an exact superset of the required channel map. 3) Search for a downmix that is the exact subset of the required channel map. 4) Search for either an upmix or downmix that is the closest (minimum difference of channels) to the required channel map. 2014-12-28 08:38:22 +00:00			`#ifndef MP_TESTS_H`
			`#define MP_TESTS_H`

			`#include <stdarg.h>`
			`#include <stddef.h>`
			`#include <setjmp.h>`
			`#include <cmocka.h>`

			`#include <stdio.h>`
vo_opengl: add gamma-auto option This automatically sets the gamma option depending on lighting conditions measured from the computer's ambient light sensor. sRGB – arguably the “sibling” to BT.709 for still images – has a reference viewing environment defined in its specification (IEC 61966-2-1:1999, see http://www.color.org/chardata/rgb/srgb.xalter). According to this data, the assumed ambient illuminance is 64 lux. This is the illuminance where the gamma that results from ICC color management is correct. On the other hand, BT.1886 formalizes that the gamma level for dim environments to be 2.40, and Apple resources (WWDC12: 2012 Session 523: Best practices for color management) define the BT.1886 dim at 16 lux. So the logic we apply is: * >= 64lux -> 1.961 gamma * =< 16lux -> 2.400 gamma * 16lux < x < 64lux -> logaritmic rescale of lux to gamma. The human perception of illuminance roughly follows a logaritmic scale of lux [1]. [1]: https://msdn.microsoft.com/en-us/library/windows/desktop/dd319008%28v=vs.85%29.aspx 2015-02-07 12:54:18 +00:00			`#include <math.h>`
			`#include <float.h>`

tests: stop comparing floats against DBL_EPSILON, use FLT_EPSILON Fixes #5253. 2018-02-01 11:05:06 +00:00			`#define assert_double_equal(a, b) assert_true(fabs((a) - (b)) <= DBL_EPSILON * fmax(fabs(a), fabs(b)))`
			`#define assert_float_equal(a, b) assert_true(fabsf((a) - (b)) <= FLT_EPSILON * fmaxf(fabsf(a), fabsf(b)))`
chmap_sel: add multichannel fallback heuristic Instead of just failing during channel map selection, try to select a close layout that makes most sense and upmix/downmix to that instead of failing AO initialization. The heuristic is rather simple, and uses the following steps: 1) If mono is required always prefer stereo to a multichannel upmix. 2) Search for an upmix that is an exact superset of the required channel map. 3) Search for a downmix that is the exact subset of the required channel map. 4) Search for either an upmix or downmix that is the closest (minimum difference of channels) to the required channel map. 2014-12-28 08:38:22 +00:00
			`#endif`