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/*
* Copyright (c) 2017 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/aec3/render_delay_buffer.h"
#include <memory>
#include <string>
#include <vector>
#include "api/array_view.h"
#include "modules/audio_processing/aec3/aec3_common.h"
#include "modules/audio_processing/logging/apm_data_dumper.h"
#include "rtc_base/random.h"
#include "rtc_base/strings/string_builder.h"
#include "test/gtest.h"
namespace webrtc {
namespace {
std::string ProduceDebugText(int sample_rate_hz) {
rtc::StringBuilder ss;
ss << "Sample rate: " << sample_rate_hz;
return ss.Release();
}
} // namespace
// Verifies that the buffer overflow is correctly reported.
TEST(RenderDelayBuffer, BufferOverflow) {
const EchoCanceller3Config config;
for (auto num_channels : {1, 2, 8}) {
for (auto rate : {16000, 32000, 48000}) {
SCOPED_TRACE(ProduceDebugText(rate));
std::unique_ptr<RenderDelayBuffer> delay_buffer(
RenderDelayBuffer::Create(config, rate, num_channels));
Block block_to_insert(NumBandsForRate(rate), num_channels);
for (size_t k = 0; k < 10; ++k) {
EXPECT_EQ(RenderDelayBuffer::BufferingEvent::kNone,
delay_buffer->Insert(block_to_insert));
}
bool overrun_occurred = false;
for (size_t k = 0; k < 1000; ++k) {
RenderDelayBuffer::BufferingEvent event =
delay_buffer->Insert(block_to_insert);
overrun_occurred =
overrun_occurred ||
RenderDelayBuffer::BufferingEvent::kRenderOverrun == event;
}
EXPECT_TRUE(overrun_occurred);
}
}
}
// Verifies that the check for available block works.
TEST(RenderDelayBuffer, AvailableBlock) {
constexpr size_t kNumChannels = 1;
constexpr int kSampleRateHz = 48000;
constexpr size_t kNumBands = NumBandsForRate(kSampleRateHz);
std::unique_ptr<RenderDelayBuffer> delay_buffer(RenderDelayBuffer::Create(
EchoCanceller3Config(), kSampleRateHz, kNumChannels));
Block input_block(kNumBands, kNumChannels, 1.0f);
EXPECT_EQ(RenderDelayBuffer::BufferingEvent::kNone,
delay_buffer->Insert(input_block));
delay_buffer->PrepareCaptureProcessing();
}
// Verifies the AlignFromDelay method.
TEST(RenderDelayBuffer, AlignFromDelay) {
EchoCanceller3Config config;
std::unique_ptr<RenderDelayBuffer> delay_buffer(
RenderDelayBuffer::Create(config, 16000, 1));
ASSERT_TRUE(delay_buffer->Delay());
delay_buffer->Reset();
size_t initial_internal_delay = 0;
for (size_t delay = initial_internal_delay;
delay < initial_internal_delay + 20; ++delay) {
ASSERT_TRUE(delay_buffer->AlignFromDelay(delay));
EXPECT_EQ(delay, delay_buffer->Delay());
}
}
#if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
// Verifies the check for feasible delay.
// TODO(peah): Re-enable the test once the issue with memory leaks during DEATH
// tests on test bots has been fixed.
TEST(RenderDelayBufferDeathTest, DISABLED_WrongDelay) {
std::unique_ptr<RenderDelayBuffer> delay_buffer(
RenderDelayBuffer::Create(EchoCanceller3Config(), 48000, 1));
EXPECT_DEATH(delay_buffer->AlignFromDelay(21), "");
}
// Verifies the check for the number of bands in the inserted blocks.
TEST(RenderDelayBufferDeathTest, WrongNumberOfBands) {
for (auto rate : {16000, 32000, 48000}) {
for (size_t num_channels : {1, 2, 8}) {
SCOPED_TRACE(ProduceDebugText(rate));
std::unique_ptr<RenderDelayBuffer> delay_buffer(RenderDelayBuffer::Create(
EchoCanceller3Config(), rate, num_channels));
Block block_to_insert(
NumBandsForRate(rate < 48000 ? rate + 16000 : 16000), num_channels);
EXPECT_DEATH(delay_buffer->Insert(block_to_insert), "");
}
}
}
// Verifies the check for the number of channels in the inserted blocks.
TEST(RenderDelayBufferDeathTest, WrongNumberOfChannels) {
for (auto rate : {16000, 32000, 48000}) {
for (size_t num_channels : {1, 2, 8}) {
SCOPED_TRACE(ProduceDebugText(rate));
std::unique_ptr<RenderDelayBuffer> delay_buffer(RenderDelayBuffer::Create(
EchoCanceller3Config(), rate, num_channels));
Block block_to_insert(NumBandsForRate(rate), num_channels + 1);
EXPECT_DEATH(delay_buffer->Insert(block_to_insert), "");
}
}
}
#endif
} // namespace webrtc