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/*
* 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/aec3/api_call_jitter_metrics.h"
#include "modules/audio_processing/aec3/aec3_common.h"
#include "test/gtest.h"
namespace webrtc {
// Verify constant jitter.
TEST(ApiCallJitterMetrics, ConstantJitter) {
for (int jitter = 1; jitter < 20; ++jitter) {
ApiCallJitterMetrics metrics;
for (size_t k = 0; k < 30 * kNumBlocksPerSecond; ++k) {
for (int j = 0; j < jitter; ++j) {
metrics.ReportRenderCall();
}
for (int j = 0; j < jitter; ++j) {
metrics.ReportCaptureCall();
if (metrics.WillReportMetricsAtNextCapture()) {
EXPECT_EQ(jitter, metrics.render_jitter().min());
EXPECT_EQ(jitter, metrics.render_jitter().max());
EXPECT_EQ(jitter, metrics.capture_jitter().min());
EXPECT_EQ(jitter, metrics.capture_jitter().max());
}
}
}
}
}
// Verify peaky jitter for the render.
TEST(ApiCallJitterMetrics, JitterPeakRender) {
constexpr int kMinJitter = 2;
constexpr int kJitterPeak = 10;
constexpr int kPeakInterval = 100;
ApiCallJitterMetrics metrics;
int render_surplus = 0;
for (size_t k = 0; k < 30 * kNumBlocksPerSecond; ++k) {
const int num_render_calls =
k % kPeakInterval == 0 ? kJitterPeak : kMinJitter;
for (int j = 0; j < num_render_calls; ++j) {
metrics.ReportRenderCall();
++render_surplus;
}
ASSERT_LE(kMinJitter, render_surplus);
const int num_capture_calls =
render_surplus == kMinJitter ? kMinJitter : kMinJitter + 1;
for (int j = 0; j < num_capture_calls; ++j) {
metrics.ReportCaptureCall();
if (metrics.WillReportMetricsAtNextCapture()) {
EXPECT_EQ(kMinJitter, metrics.render_jitter().min());
EXPECT_EQ(kJitterPeak, metrics.render_jitter().max());
EXPECT_EQ(kMinJitter, metrics.capture_jitter().min());
EXPECT_EQ(kMinJitter + 1, metrics.capture_jitter().max());
}
--render_surplus;
}
}
}
// Verify peaky jitter for the capture.
TEST(ApiCallJitterMetrics, JitterPeakCapture) {
constexpr int kMinJitter = 2;
constexpr int kJitterPeak = 10;
constexpr int kPeakInterval = 100;
ApiCallJitterMetrics metrics;
int capture_surplus = kMinJitter;
for (size_t k = 0; k < 30 * kNumBlocksPerSecond; ++k) {
ASSERT_LE(kMinJitter, capture_surplus);
const int num_render_calls =
capture_surplus == kMinJitter ? kMinJitter : kMinJitter + 1;
for (int j = 0; j < num_render_calls; ++j) {
metrics.ReportRenderCall();
--capture_surplus;
}
const int num_capture_calls =
k % kPeakInterval == 0 ? kJitterPeak : kMinJitter;
for (int j = 0; j < num_capture_calls; ++j) {
metrics.ReportCaptureCall();
if (metrics.WillReportMetricsAtNextCapture()) {
EXPECT_EQ(kMinJitter, metrics.render_jitter().min());
EXPECT_EQ(kMinJitter + 1, metrics.render_jitter().max());
EXPECT_EQ(kMinJitter, metrics.capture_jitter().min());
EXPECT_EQ(kJitterPeak, metrics.capture_jitter().max());
}
++capture_surplus;
}
}
}
} // namespace webrtc
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