1 /*
2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include "modules/audio_processing/aec3/render_delay_buffer.h"
12
13 #include <memory>
14 #include <string>
15 #include <vector>
16
17 #include "api/array_view.h"
18 #include "modules/audio_processing/aec3/aec3_common.h"
19 #include "modules/audio_processing/logging/apm_data_dumper.h"
20 #include "rtc_base/random.h"
21 #include "rtc_base/strings/string_builder.h"
22 #include "test/gtest.h"
23
24 namespace webrtc {
25 namespace {
26
ProduceDebugText(int sample_rate_hz)27 std::string ProduceDebugText(int sample_rate_hz) {
28 rtc::StringBuilder ss;
29 ss << "Sample rate: " << sample_rate_hz;
30 return ss.Release();
31 }
32
33 } // namespace
34
35 // Verifies that the buffer overflow is correctly reported.
TEST(RenderDelayBuffer,BufferOverflow)36 TEST(RenderDelayBuffer, BufferOverflow) {
37 const EchoCanceller3Config config;
38 for (auto num_channels : {1, 2, 8}) {
39 for (auto rate : {16000, 32000, 48000}) {
40 SCOPED_TRACE(ProduceDebugText(rate));
41 std::unique_ptr<RenderDelayBuffer> delay_buffer(
42 RenderDelayBuffer::Create(config, rate, num_channels));
43 Block block_to_insert(NumBandsForRate(rate), num_channels);
44 for (size_t k = 0; k < 10; ++k) {
45 EXPECT_EQ(RenderDelayBuffer::BufferingEvent::kNone,
46 delay_buffer->Insert(block_to_insert));
47 }
48 bool overrun_occurred = false;
49 for (size_t k = 0; k < 1000; ++k) {
50 RenderDelayBuffer::BufferingEvent event =
51 delay_buffer->Insert(block_to_insert);
52 overrun_occurred =
53 overrun_occurred ||
54 RenderDelayBuffer::BufferingEvent::kRenderOverrun == event;
55 }
56
57 EXPECT_TRUE(overrun_occurred);
58 }
59 }
60 }
61
62 // Verifies that the check for available block works.
TEST(RenderDelayBuffer,AvailableBlock)63 TEST(RenderDelayBuffer, AvailableBlock) {
64 constexpr size_t kNumChannels = 1;
65 constexpr int kSampleRateHz = 48000;
66 constexpr size_t kNumBands = NumBandsForRate(kSampleRateHz);
67 std::unique_ptr<RenderDelayBuffer> delay_buffer(RenderDelayBuffer::Create(
68 EchoCanceller3Config(), kSampleRateHz, kNumChannels));
69 Block input_block(kNumBands, kNumChannels, 1.0f);
70 EXPECT_EQ(RenderDelayBuffer::BufferingEvent::kNone,
71 delay_buffer->Insert(input_block));
72 delay_buffer->PrepareCaptureProcessing();
73 }
74
75 // Verifies the AlignFromDelay method.
TEST(RenderDelayBuffer,AlignFromDelay)76 TEST(RenderDelayBuffer, AlignFromDelay) {
77 EchoCanceller3Config config;
78 std::unique_ptr<RenderDelayBuffer> delay_buffer(
79 RenderDelayBuffer::Create(config, 16000, 1));
80 ASSERT_TRUE(delay_buffer->Delay());
81 delay_buffer->Reset();
82 size_t initial_internal_delay = 0;
83 for (size_t delay = initial_internal_delay;
84 delay < initial_internal_delay + 20; ++delay) {
85 ASSERT_TRUE(delay_buffer->AlignFromDelay(delay));
86 EXPECT_EQ(delay, delay_buffer->Delay());
87 }
88 }
89
90 #if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
91
92 // Verifies the check for feasible delay.
93 // TODO(peah): Re-enable the test once the issue with memory leaks during DEATH
94 // tests on test bots has been fixed.
TEST(RenderDelayBufferDeathTest,DISABLED_WrongDelay)95 TEST(RenderDelayBufferDeathTest, DISABLED_WrongDelay) {
96 std::unique_ptr<RenderDelayBuffer> delay_buffer(
97 RenderDelayBuffer::Create(EchoCanceller3Config(), 48000, 1));
98 EXPECT_DEATH(delay_buffer->AlignFromDelay(21), "");
99 }
100
101 // Verifies the check for the number of bands in the inserted blocks.
TEST(RenderDelayBufferDeathTest,WrongNumberOfBands)102 TEST(RenderDelayBufferDeathTest, WrongNumberOfBands) {
103 for (auto rate : {16000, 32000, 48000}) {
104 for (size_t num_channels : {1, 2, 8}) {
105 SCOPED_TRACE(ProduceDebugText(rate));
106 std::unique_ptr<RenderDelayBuffer> delay_buffer(RenderDelayBuffer::Create(
107 EchoCanceller3Config(), rate, num_channels));
108 Block block_to_insert(
109 NumBandsForRate(rate < 48000 ? rate + 16000 : 16000), num_channels);
110 EXPECT_DEATH(delay_buffer->Insert(block_to_insert), "");
111 }
112 }
113 }
114
115 // Verifies the check for the number of channels in the inserted blocks.
TEST(RenderDelayBufferDeathTest,WrongNumberOfChannels)116 TEST(RenderDelayBufferDeathTest, WrongNumberOfChannels) {
117 for (auto rate : {16000, 32000, 48000}) {
118 for (size_t num_channels : {1, 2, 8}) {
119 SCOPED_TRACE(ProduceDebugText(rate));
120 std::unique_ptr<RenderDelayBuffer> delay_buffer(RenderDelayBuffer::Create(
121 EchoCanceller3Config(), rate, num_channels));
122 Block block_to_insert(NumBandsForRate(rate), num_channels + 1);
123 EXPECT_DEATH(delay_buffer->Insert(block_to_insert), "");
124 }
125 }
126 }
127
128 #endif
129
130 } // namespace webrtc
131