blob: 049c8d568ea50f0caef27952f1d7bfa5ed0d54b6 (
plain)
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
57
58
59
60
|
/*
* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "modules/audio_processing/agc2/limiter_db_gain_curve.h"
#include "rtc_base/gunit.h"
namespace webrtc {
TEST(FixedDigitalGainController2Limiter, ConstructDestruct) {
LimiterDbGainCurve l;
}
TEST(FixedDigitalGainController2Limiter, GainCurveShouldBeMonotone) {
LimiterDbGainCurve l;
float last_output_level = 0.f;
bool has_last_output_level = false;
for (float level = -90.f; level <= l.max_input_level_db(); level += 0.5f) {
const float current_output_level = l.GetOutputLevelDbfs(level);
if (!has_last_output_level) {
last_output_level = current_output_level;
has_last_output_level = true;
}
EXPECT_LE(last_output_level, current_output_level);
last_output_level = current_output_level;
}
}
TEST(FixedDigitalGainController2Limiter, GainCurveShouldBeContinuous) {
LimiterDbGainCurve l;
float last_output_level = 0.f;
bool has_last_output_level = false;
constexpr float kMaxDelta = 0.5f;
for (float level = -90.f; level <= l.max_input_level_db(); level += 0.5f) {
const float current_output_level = l.GetOutputLevelDbfs(level);
if (!has_last_output_level) {
last_output_level = current_output_level;
has_last_output_level = true;
}
EXPECT_LE(current_output_level, last_output_level + kMaxDelta);
last_output_level = current_output_level;
}
}
TEST(FixedDigitalGainController2Limiter, OutputGainShouldBeLessThanFullScale) {
LimiterDbGainCurve l;
for (float level = -90.f; level <= l.max_input_level_db(); level += 0.5f) {
const float current_output_level = l.GetOutputLevelDbfs(level);
EXPECT_LE(current_output_level, 0.f);
}
}
} // namespace webrtc
|
