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/*
* Copyright 2019 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 "rtc_base/experiments/balanced_degradation_settings.h"
#include <limits>
#include "rtc_base/gunit.h"
#include "test/field_trial.h"
#include "test/gmock.h"
namespace webrtc {
namespace {
void VerifyIsDefault(
const std::vector<BalancedDegradationSettings::Config>& config) {
EXPECT_THAT(config, ::testing::ElementsAre(
BalancedDegradationSettings::Config{
320 * 240,
7,
0,
BalancedDegradationSettings::kNoFpsDiff,
{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}},
BalancedDegradationSettings::Config{
480 * 270,
10,
0,
BalancedDegradationSettings::kNoFpsDiff,
{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}},
BalancedDegradationSettings::Config{
640 * 480,
15,
0,
BalancedDegradationSettings::kNoFpsDiff,
{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}}));
}
} // namespace
TEST(BalancedDegradationSettings, GetsDefaultConfigIfNoList) {
webrtc::test::ScopedFieldTrials field_trials("");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
EXPECT_FALSE(settings.NextHigherBitrateKbps(1));
EXPECT_FALSE(settings.MinFpsDiff(1));
EXPECT_FALSE(settings.GetQpThresholds(kVideoCodecVP8, 1));
EXPECT_FALSE(settings.GetQpThresholds(kVideoCodecVP9, 1));
EXPECT_FALSE(settings.GetQpThresholds(kVideoCodecH264, 1));
EXPECT_FALSE(settings.GetQpThresholds(kVideoCodecGeneric, 1));
EXPECT_FALSE(settings.GetQpThresholds(kVideoCodecMultiplex, 1));
}
TEST(BalancedDegradationSettings, GetsConfig) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:11|22|33,fps:5|15|25,other:4|5|6/");
BalancedDegradationSettings settings;
EXPECT_THAT(settings.GetConfigs(),
::testing::ElementsAre(
BalancedDegradationSettings::Config{
11,
5,
0,
BalancedDegradationSettings::kNoFpsDiff,
{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}},
BalancedDegradationSettings::Config{
22,
15,
0,
BalancedDegradationSettings::kNoFpsDiff,
{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}},
BalancedDegradationSettings::Config{
33,
25,
0,
BalancedDegradationSettings::kNoFpsDiff,
{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}}));
}
TEST(BalancedDegradationSettings, GetsDefaultConfigForZeroFpsValue) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:0|15|25/");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
}
TEST(BalancedDegradationSettings, GetsDefaultConfigIfPixelsDecreases) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|999|3000,fps:5|15|25/");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
}
TEST(BalancedDegradationSettings, GetsDefaultConfigIfFramerateDecreases) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|4|25/");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
}
TEST(BalancedDegradationSettings, GetsConfigWithSpecificFps) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,vp8_fps:7|8|9,vp9_fps:9|10|11,"
"h264_fps:11|12|13,generic_fps:13|14|15/");
BalancedDegradationSettings settings;
EXPECT_THAT(settings.GetConfigs(),
::testing::ElementsAre(
BalancedDegradationSettings::Config{
1000,
5,
0,
BalancedDegradationSettings::kNoFpsDiff,
{0, 0, 7},
{0, 0, 9},
{0, 0, 11},
{0, 0, 13}},
BalancedDegradationSettings::Config{
2000,
15,
0,
BalancedDegradationSettings::kNoFpsDiff,
{0, 0, 8},
{0, 0, 10},
{0, 0, 12},
{0, 0, 14}},
BalancedDegradationSettings::Config{
3000,
25,
0,
BalancedDegradationSettings::kNoFpsDiff,
{0, 0, 9},
{0, 0, 11},
{0, 0, 13},
{0, 0, 15}}));
}
TEST(BalancedDegradationSettings, GetsDefaultConfigForZeroVp8FpsValue) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:7|15|25,vp8_fps:0|15|25/");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
}
TEST(BalancedDegradationSettings, GetsDefaultConfigForInvalidFpsValue) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:7|15|25,vp8_fps:10|15|2000/");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
}
TEST(BalancedDegradationSettings, GetsDefaultConfigIfVp8FramerateDecreases) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:4|5|25,vp8_fps:5|4|25/");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
}
TEST(BalancedDegradationSettings, GetsMinFps) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25/");
BalancedDegradationSettings settings;
EXPECT_EQ(5, settings.MinFps(kVideoCodecVP8, 1));
EXPECT_EQ(5, settings.MinFps(kVideoCodecVP8, 1000));
EXPECT_EQ(15, settings.MinFps(kVideoCodecVP8, 1001));
EXPECT_EQ(15, settings.MinFps(kVideoCodecVP8, 2000));
EXPECT_EQ(25, settings.MinFps(kVideoCodecVP8, 2001));
EXPECT_EQ(25, settings.MinFps(kVideoCodecVP8, 3000));
EXPECT_EQ(std::numeric_limits<int>::max(),
settings.MinFps(kVideoCodecVP8, 3001));
}
TEST(BalancedDegradationSettings, GetsVp8MinFps) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,vp8_fps:7|10|12/");
BalancedDegradationSettings settings;
EXPECT_EQ(7, settings.MinFps(kVideoCodecVP8, 1));
EXPECT_EQ(7, settings.MinFps(kVideoCodecVP8, 1000));
EXPECT_EQ(10, settings.MinFps(kVideoCodecVP8, 1001));
EXPECT_EQ(10, settings.MinFps(kVideoCodecVP8, 2000));
EXPECT_EQ(12, settings.MinFps(kVideoCodecVP8, 2001));
EXPECT_EQ(12, settings.MinFps(kVideoCodecVP8, 3000));
EXPECT_EQ(std::numeric_limits<int>::max(),
settings.MinFps(kVideoCodecVP8, 3001));
}
TEST(BalancedDegradationSettings, GetsMaxFps) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25/");
BalancedDegradationSettings settings;
EXPECT_EQ(15, settings.MaxFps(kVideoCodecVP8, 1));
EXPECT_EQ(15, settings.MaxFps(kVideoCodecVP8, 1000));
EXPECT_EQ(25, settings.MaxFps(kVideoCodecVP8, 1001));
EXPECT_EQ(25, settings.MaxFps(kVideoCodecVP8, 2000));
EXPECT_EQ(std::numeric_limits<int>::max(),
settings.MaxFps(kVideoCodecVP8, 2001));
}
TEST(BalancedDegradationSettings, GetsVp8MaxFps) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,vp8_fps:7|10|12/");
BalancedDegradationSettings settings;
EXPECT_EQ(10, settings.MaxFps(kVideoCodecVP8, 1));
EXPECT_EQ(10, settings.MaxFps(kVideoCodecVP8, 1000));
EXPECT_EQ(12, settings.MaxFps(kVideoCodecVP8, 1001));
EXPECT_EQ(12, settings.MaxFps(kVideoCodecVP8, 2000));
EXPECT_EQ(std::numeric_limits<int>::max(),
settings.MaxFps(kVideoCodecVP8, 2001));
}
TEST(BalancedDegradationSettings, GetsVp9Fps) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,vp9_fps:7|10|12/");
BalancedDegradationSettings settings;
EXPECT_EQ(7, settings.MinFps(kVideoCodecVP9, 1000));
EXPECT_EQ(10, settings.MaxFps(kVideoCodecVP9, 1000));
}
TEST(BalancedDegradationSettings, GetsH264Fps) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,h264_fps:8|11|13/");
BalancedDegradationSettings settings;
EXPECT_EQ(11, settings.MinFps(kVideoCodecH264, 2000));
EXPECT_EQ(13, settings.MaxFps(kVideoCodecH264, 2000));
}
TEST(BalancedDegradationSettings, GetsGenericFps) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,generic_fps:9|12|14/");
BalancedDegradationSettings settings;
EXPECT_EQ(14, settings.MinFps(kVideoCodecGeneric, 3000));
EXPECT_EQ(std::numeric_limits<int>::max(),
settings.MaxFps(kVideoCodecGeneric, 3000));
}
TEST(BalancedDegradationSettings, GetsUnlimitedForMaxValidFps) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|100,vp8_fps:30|100|100/");
const int kUnlimitedFps = std::numeric_limits<int>::max();
BalancedDegradationSettings settings;
EXPECT_EQ(15, settings.MinFps(kVideoCodecH264, 2000));
EXPECT_EQ(kUnlimitedFps, settings.MinFps(kVideoCodecH264, 2001));
EXPECT_EQ(30, settings.MinFps(kVideoCodecVP8, 1000));
EXPECT_EQ(kUnlimitedFps, settings.MinFps(kVideoCodecVP8, 1001));
}
TEST(BalancedDegradationSettings, GetsConfigWithBitrate) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:11|22|33,fps:5|15|25,kbps:44|88|99/");
BalancedDegradationSettings settings;
EXPECT_THAT(settings.GetConfigs(),
::testing::ElementsAre(
BalancedDegradationSettings::Config{
11,
5,
44,
BalancedDegradationSettings::kNoFpsDiff,
{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}},
BalancedDegradationSettings::Config{
22,
15,
88,
BalancedDegradationSettings::kNoFpsDiff,
{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}},
BalancedDegradationSettings::Config{
33,
25,
99,
BalancedDegradationSettings::kNoFpsDiff,
{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}}));
}
TEST(BalancedDegradationSettings, GetsDefaultConfigIfBitrateDecreases) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:11|22|33,fps:5|15|25,kbps:44|43|99/");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
}
TEST(BalancedDegradationSettings,
GetsDefaultConfigIfBitrateDecreasesWithUnsetValue) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:11|22|33,fps:5|15|25,kbps:44|0|43/");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
}
TEST(BalancedDegradationSettings, GetsNextHigherBitrate) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,kbps:44|88|99/");
BalancedDegradationSettings settings;
EXPECT_EQ(88, settings.NextHigherBitrateKbps(1));
EXPECT_EQ(88, settings.NextHigherBitrateKbps(1000));
EXPECT_EQ(99, settings.NextHigherBitrateKbps(1001));
EXPECT_EQ(99, settings.NextHigherBitrateKbps(2000));
EXPECT_FALSE(settings.NextHigherBitrateKbps(2001));
}
TEST(BalancedDegradationSettings, GetsNextHigherBitrateWithUnsetValue) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,kbps:10|0|20/");
BalancedDegradationSettings settings;
EXPECT_FALSE(settings.NextHigherBitrateKbps(1));
EXPECT_FALSE(settings.NextHigherBitrateKbps(1000));
EXPECT_EQ(20, settings.NextHigherBitrateKbps(1001));
EXPECT_EQ(20, settings.NextHigherBitrateKbps(2000));
EXPECT_FALSE(settings.NextHigherBitrateKbps(2001));
}
TEST(BalancedDegradationSettings, GetsFpsDiff) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,fps_diff:0|-2|3/");
BalancedDegradationSettings settings;
EXPECT_EQ(0, settings.MinFpsDiff(1));
EXPECT_EQ(0, settings.MinFpsDiff(1000));
EXPECT_EQ(-2, settings.MinFpsDiff(1001));
EXPECT_EQ(-2, settings.MinFpsDiff(2000));
EXPECT_EQ(3, settings.MinFpsDiff(2001));
EXPECT_EQ(3, settings.MinFpsDiff(3000));
EXPECT_FALSE(settings.MinFpsDiff(3001));
}
TEST(BalancedDegradationSettings, GetsNoFpsDiffIfValueBelowMinSetting) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,fps_diff:-100|-99|-101/");
// Min valid fps_diff setting: -99.
BalancedDegradationSettings settings;
EXPECT_FALSE(settings.MinFpsDiff(1000));
EXPECT_EQ(-99, settings.MinFpsDiff(2000));
EXPECT_FALSE(settings.MinFpsDiff(3000));
}
TEST(BalancedDegradationSettings, QpThresholdsNotSetByDefault) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25/");
BalancedDegradationSettings settings;
EXPECT_FALSE(settings.GetQpThresholds(kVideoCodecVP8, 1));
EXPECT_FALSE(settings.GetQpThresholds(kVideoCodecVP9, 1));
EXPECT_FALSE(settings.GetQpThresholds(kVideoCodecH264, 1));
EXPECT_FALSE(settings.GetQpThresholds(kVideoCodecGeneric, 1));
}
TEST(BalancedDegradationSettings, GetsConfigWithQpThresholds) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,vp8_qp_low:89|90|88,"
"vp8_qp_high:90|91|92,vp9_qp_low:27|28|29,vp9_qp_high:120|130|140,"
"h264_qp_low:12|13|14,h264_qp_high:20|30|40,generic_qp_low:7|6|5,"
"generic_qp_high:22|23|24/");
BalancedDegradationSettings settings;
EXPECT_THAT(settings.GetConfigs(),
::testing::ElementsAre(
BalancedDegradationSettings::Config{
1000,
5,
0,
BalancedDegradationSettings::kNoFpsDiff,
{89, 90, 0},
{27, 120, 0},
{12, 20, 0},
{7, 22, 0}},
BalancedDegradationSettings::Config{
2000,
15,
0,
BalancedDegradationSettings::kNoFpsDiff,
{90, 91, 0},
{28, 130, 0},
{13, 30, 0},
{6, 23, 0}},
BalancedDegradationSettings::Config{
3000,
25,
0,
BalancedDegradationSettings::kNoFpsDiff,
{88, 92, 0},
{29, 140, 0},
{14, 40, 0},
{5, 24, 0}}));
}
TEST(BalancedDegradationSettings, GetsDefaultConfigIfOnlyHasLowThreshold) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,vp8_qp_low:89|90|88/");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
}
TEST(BalancedDegradationSettings, GetsDefaultConfigIfOnlyHasHighThreshold) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,vp8_qp_high:90|91|92/");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
}
TEST(BalancedDegradationSettings, GetsDefaultConfigIfLowEqualsHigh) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,"
"vp8_qp_low:89|90|88,vp8_qp_high:90|91|88/");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
}
TEST(BalancedDegradationSettings, GetsDefaultConfigIfLowGreaterThanHigh) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,"
"vp8_qp_low:89|90|88,vp8_qp_high:90|91|87/");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
}
TEST(BalancedDegradationSettings, GetsDefaultConfigForZeroQpValue) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,"
"vp8_qp_low:89|0|88,vp8_qp_high:90|91|92/");
BalancedDegradationSettings settings;
VerifyIsDefault(settings.GetConfigs());
}
TEST(BalancedDegradationSettings, GetsVp8QpThresholds) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,"
"vp8_qp_low:89|90|88,vp8_qp_high:90|91|92/");
BalancedDegradationSettings settings;
EXPECT_EQ(89, settings.GetQpThresholds(kVideoCodecVP8, 1)->low);
EXPECT_EQ(90, settings.GetQpThresholds(kVideoCodecVP8, 1)->high);
EXPECT_EQ(90, settings.GetQpThresholds(kVideoCodecVP8, 1000)->high);
EXPECT_EQ(91, settings.GetQpThresholds(kVideoCodecVP8, 1001)->high);
EXPECT_EQ(91, settings.GetQpThresholds(kVideoCodecVP8, 2000)->high);
EXPECT_EQ(92, settings.GetQpThresholds(kVideoCodecVP8, 2001)->high);
EXPECT_EQ(92, settings.GetQpThresholds(kVideoCodecVP8, 3000)->high);
EXPECT_EQ(92, settings.GetQpThresholds(kVideoCodecVP8, 3001)->high);
}
TEST(BalancedDegradationSettings, GetsVp9QpThresholds) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,"
"vp9_qp_low:55|56|57,vp9_qp_high:155|156|157/");
BalancedDegradationSettings settings;
const auto thresholds = settings.GetQpThresholds(kVideoCodecVP9, 1000);
EXPECT_TRUE(thresholds);
EXPECT_EQ(55, thresholds->low);
EXPECT_EQ(155, thresholds->high);
}
TEST(BalancedDegradationSettings, GetsH264QpThresholds) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,"
"h264_qp_low:21|22|23,h264_qp_high:41|43|42/");
BalancedDegradationSettings settings;
const auto thresholds = settings.GetQpThresholds(kVideoCodecH264, 2000);
EXPECT_TRUE(thresholds);
EXPECT_EQ(22, thresholds->low);
EXPECT_EQ(43, thresholds->high);
}
TEST(BalancedDegradationSettings, GetsGenericQpThresholds) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-Video-BalancedDegradationSettings/"
"pixels:1000|2000|3000,fps:5|15|25,"
"generic_qp_low:2|3|4,generic_qp_high:22|23|24/");
BalancedDegradationSettings settings;
const auto thresholds = settings.GetQpThresholds(kVideoCodecGeneric, 3000);
EXPECT_TRUE(thresholds);
EXPECT_EQ(4, thresholds->low);
EXPECT_EQ(24, thresholds->high);
}
} // namespace webrtc