mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-13 13:50:40 +01:00
97e04884bd
Bug: webrtc:8830 Change-Id: Iaa30488255f2e09e269274136d370740cd030902 Reviewed-on: https://webrtc-review.googlesource.com/78880 Reviewed-by: Erik Språng <sprang@webrtc.org> Reviewed-by: Magnus Jedvert <magjed@webrtc.org> Commit-Queue: Niels Moller <nisse@webrtc.org> Cr-Commit-Position: refs/heads/master@{#23529}
547 lines
21 KiB
C++
547 lines
21 KiB
C++
/*
|
|
* Copyright (c) 2016 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/video_coding/codecs/vp8/simulcast_rate_allocator.h"
|
|
|
|
#include <limits>
|
|
#include <memory>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
#include "test/gmock.h"
|
|
#include "test/gtest.h"
|
|
|
|
namespace webrtc {
|
|
namespace {
|
|
using ::testing::_;
|
|
|
|
constexpr uint32_t kMinBitrateKbps = 50;
|
|
constexpr uint32_t kTargetBitrateKbps = 100;
|
|
constexpr uint32_t kMaxBitrateKbps = 1000;
|
|
constexpr uint32_t kFramerateFps = 5;
|
|
|
|
class MockTemporalLayers : public TemporalLayers {
|
|
public:
|
|
MOCK_METHOD1(UpdateLayerConfig, TemporalLayers::FrameConfig(uint32_t));
|
|
MOCK_METHOD2(OnRatesUpdated, void(const std::vector<uint32_t>&, int));
|
|
MOCK_METHOD1(UpdateConfiguration, bool(Vp8EncoderConfig*));
|
|
MOCK_METHOD4(PopulateCodecSpecific,
|
|
void(bool,
|
|
const TemporalLayers::FrameConfig&,
|
|
CodecSpecificInfoVP8*,
|
|
uint32_t));
|
|
MOCK_METHOD2(FrameEncoded, void(unsigned int, int));
|
|
MOCK_CONST_METHOD0(Tl0PicIdx, uint8_t());
|
|
MOCK_CONST_METHOD1(GetTemporalLayerId,
|
|
int(const TemporalLayers::FrameConfig&));
|
|
};
|
|
} // namespace
|
|
|
|
class SimulcastRateAllocatorTest : public ::testing::TestWithParam<bool> {
|
|
public:
|
|
SimulcastRateAllocatorTest() {
|
|
memset(&codec_, 0, sizeof(VideoCodec));
|
|
codec_.codecType = kVideoCodecVP8;
|
|
codec_.minBitrate = kMinBitrateKbps;
|
|
codec_.targetBitrate = kTargetBitrateKbps;
|
|
codec_.maxBitrate = kMaxBitrateKbps;
|
|
codec_.active = true;
|
|
CreateAllocator();
|
|
}
|
|
virtual ~SimulcastRateAllocatorTest() {}
|
|
|
|
template <size_t S>
|
|
void ExpectEqual(uint32_t (&expected)[S],
|
|
const std::vector<uint32_t>& actual) {
|
|
EXPECT_EQ(S, actual.size());
|
|
for (size_t i = 0; i < S; ++i)
|
|
EXPECT_EQ(expected[i], actual[i]) << "Mismatch at index " << i;
|
|
}
|
|
|
|
template <size_t S>
|
|
void ExpectEqual(uint32_t (&expected)[S],
|
|
const VideoBitrateAllocation& actual) {
|
|
// EXPECT_EQ(S, actual.size());
|
|
uint32_t sum = 0;
|
|
for (size_t i = 0; i < S; ++i) {
|
|
uint32_t layer_bitrate = actual.GetSpatialLayerSum(i);
|
|
if (layer_bitrate == 0) {
|
|
EXPECT_FALSE(actual.IsSpatialLayerUsed(i));
|
|
}
|
|
EXPECT_EQ(expected[i] * 1000U, layer_bitrate) << "Mismatch at index "
|
|
<< i;
|
|
sum += layer_bitrate;
|
|
}
|
|
EXPECT_EQ(sum, actual.get_sum_bps());
|
|
}
|
|
|
|
void CreateAllocator() {
|
|
allocator_.reset(new SimulcastRateAllocator(codec_));
|
|
}
|
|
|
|
void SetupCodecThreeSimulcastStreams(
|
|
const std::vector<bool>& active_streams) {
|
|
size_t num_streams = 3;
|
|
RTC_DCHECK_GE(active_streams.size(), num_streams);
|
|
SetupCodecTwoSimulcastStreams(active_streams);
|
|
codec_.numberOfSimulcastStreams = num_streams;
|
|
codec_.simulcastStream[2].minBitrate = 2000;
|
|
codec_.simulcastStream[2].targetBitrate = 3000;
|
|
codec_.simulcastStream[2].maxBitrate = 4000;
|
|
codec_.simulcastStream[2].active = active_streams[2];
|
|
}
|
|
|
|
void SetupCodecTwoSimulcastStreams(const std::vector<bool>& active_streams) {
|
|
size_t num_streams = 2;
|
|
RTC_DCHECK_GE(active_streams.size(), num_streams);
|
|
codec_.numberOfSimulcastStreams = num_streams;
|
|
codec_.maxBitrate = 0;
|
|
codec_.simulcastStream[0].minBitrate = 10;
|
|
codec_.simulcastStream[0].targetBitrate = 100;
|
|
codec_.simulcastStream[0].maxBitrate = 500;
|
|
codec_.simulcastStream[1].minBitrate = 50;
|
|
codec_.simulcastStream[1].targetBitrate = 500;
|
|
codec_.simulcastStream[1].maxBitrate = 1000;
|
|
for (size_t i = 0; i < num_streams; ++i) {
|
|
codec_.simulcastStream[i].active = active_streams[i];
|
|
}
|
|
}
|
|
|
|
VideoBitrateAllocation GetAllocation(uint32_t target_bitrate) {
|
|
return allocator_->GetAllocation(target_bitrate * 1000U, kDefaultFrameRate);
|
|
}
|
|
|
|
protected:
|
|
static const int kDefaultFrameRate = 30;
|
|
VideoCodec codec_;
|
|
std::unique_ptr<SimulcastRateAllocator> allocator_;
|
|
};
|
|
|
|
TEST_F(SimulcastRateAllocatorTest, NoSimulcastBelowMin) {
|
|
uint32_t expected[] = {codec_.minBitrate};
|
|
codec_.active = true;
|
|
ExpectEqual(expected, GetAllocation(codec_.minBitrate - 1));
|
|
ExpectEqual(expected, GetAllocation(1));
|
|
ExpectEqual(expected, GetAllocation(0));
|
|
}
|
|
|
|
TEST_F(SimulcastRateAllocatorTest, NoSimulcastAboveMax) {
|
|
uint32_t expected[] = {codec_.maxBitrate};
|
|
codec_.active = true;
|
|
ExpectEqual(expected, GetAllocation(codec_.maxBitrate + 1));
|
|
ExpectEqual(expected, GetAllocation(std::numeric_limits<uint32_t>::max()));
|
|
}
|
|
|
|
TEST_F(SimulcastRateAllocatorTest, NoSimulcastNoMax) {
|
|
const uint32_t kMax = VideoBitrateAllocation::kMaxBitrateBps / 1000;
|
|
codec_.active = true;
|
|
codec_.maxBitrate = 0;
|
|
CreateAllocator();
|
|
|
|
uint32_t expected[] = {kMax};
|
|
ExpectEqual(expected, GetAllocation(kMax));
|
|
}
|
|
|
|
TEST_F(SimulcastRateAllocatorTest, NoSimulcastWithinLimits) {
|
|
codec_.active = true;
|
|
for (uint32_t bitrate = codec_.minBitrate; bitrate <= codec_.maxBitrate;
|
|
++bitrate) {
|
|
uint32_t expected[] = {bitrate};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
}
|
|
}
|
|
|
|
// Tests that when we aren't using simulcast and the codec is marked inactive no
|
|
// bitrate will be allocated.
|
|
TEST_F(SimulcastRateAllocatorTest, NoSimulcastInactive) {
|
|
codec_.active = false;
|
|
uint32_t expected[] = {0};
|
|
CreateAllocator();
|
|
|
|
ExpectEqual(expected, GetAllocation(kMinBitrateKbps - 10));
|
|
ExpectEqual(expected, GetAllocation(kTargetBitrateKbps));
|
|
ExpectEqual(expected, GetAllocation(kMaxBitrateKbps + 10));
|
|
}
|
|
|
|
TEST_F(SimulcastRateAllocatorTest, SingleSimulcastBelowMin) {
|
|
// With simulcast, use the min bitrate from the ss spec instead of the global.
|
|
codec_.numberOfSimulcastStreams = 1;
|
|
const uint32_t kMin = codec_.minBitrate - 10;
|
|
codec_.simulcastStream[0].minBitrate = kMin;
|
|
codec_.simulcastStream[0].targetBitrate = kTargetBitrateKbps;
|
|
codec_.simulcastStream[0].active = true;
|
|
CreateAllocator();
|
|
|
|
uint32_t expected[] = {kMin};
|
|
ExpectEqual(expected, GetAllocation(kMin - 1));
|
|
ExpectEqual(expected, GetAllocation(1));
|
|
ExpectEqual(expected, GetAllocation(0));
|
|
}
|
|
|
|
TEST_F(SimulcastRateAllocatorTest, SingleSimulcastAboveMax) {
|
|
codec_.numberOfSimulcastStreams = 1;
|
|
codec_.simulcastStream[0].minBitrate = kMinBitrateKbps;
|
|
const uint32_t kMax = codec_.simulcastStream[0].maxBitrate + 1000;
|
|
codec_.simulcastStream[0].maxBitrate = kMax;
|
|
codec_.simulcastStream[0].active = true;
|
|
CreateAllocator();
|
|
|
|
uint32_t expected[] = {kMax};
|
|
ExpectEqual(expected, GetAllocation(kMax));
|
|
ExpectEqual(expected, GetAllocation(kMax + 1));
|
|
ExpectEqual(expected, GetAllocation(std::numeric_limits<uint32_t>::max()));
|
|
}
|
|
|
|
TEST_F(SimulcastRateAllocatorTest, SingleSimulcastWithinLimits) {
|
|
codec_.numberOfSimulcastStreams = 1;
|
|
codec_.simulcastStream[0].minBitrate = kMinBitrateKbps;
|
|
codec_.simulcastStream[0].targetBitrate = kTargetBitrateKbps;
|
|
codec_.simulcastStream[0].maxBitrate = kMaxBitrateKbps;
|
|
codec_.simulcastStream[0].active = true;
|
|
CreateAllocator();
|
|
|
|
for (uint32_t bitrate = kMinBitrateKbps; bitrate <= kMaxBitrateKbps;
|
|
++bitrate) {
|
|
uint32_t expected[] = {bitrate};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
}
|
|
}
|
|
|
|
TEST_F(SimulcastRateAllocatorTest, SingleSimulcastInactive) {
|
|
codec_.numberOfSimulcastStreams = 1;
|
|
codec_.simulcastStream[0].minBitrate = kMinBitrateKbps;
|
|
codec_.simulcastStream[0].targetBitrate = kTargetBitrateKbps;
|
|
codec_.simulcastStream[0].maxBitrate = kMaxBitrateKbps;
|
|
codec_.simulcastStream[0].active = false;
|
|
CreateAllocator();
|
|
|
|
uint32_t expected[] = {0};
|
|
ExpectEqual(expected, GetAllocation(kMinBitrateKbps - 10));
|
|
ExpectEqual(expected, GetAllocation(kTargetBitrateKbps));
|
|
ExpectEqual(expected, GetAllocation(kMaxBitrateKbps + 10));
|
|
}
|
|
|
|
TEST_F(SimulcastRateAllocatorTest, OneToThreeStreams) {
|
|
const std::vector<bool> active_streams(3, true);
|
|
SetupCodecThreeSimulcastStreams(active_streams);
|
|
CreateAllocator();
|
|
|
|
{
|
|
// Single stream, min bitrate.
|
|
const uint32_t bitrate = codec_.simulcastStream[0].minBitrate;
|
|
uint32_t expected[] = {bitrate, 0, 0};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
}
|
|
|
|
{
|
|
// Single stream at target bitrate.
|
|
const uint32_t bitrate = codec_.simulcastStream[0].targetBitrate;
|
|
uint32_t expected[] = {bitrate, 0, 0};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
}
|
|
|
|
{
|
|
// Bitrate above target for first stream, but below min for the next one.
|
|
const uint32_t bitrate = codec_.simulcastStream[0].targetBitrate +
|
|
codec_.simulcastStream[1].minBitrate - 1;
|
|
uint32_t expected[] = {bitrate, 0, 0};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
}
|
|
|
|
{
|
|
// Just enough for two streams.
|
|
const uint32_t bitrate = codec_.simulcastStream[0].targetBitrate +
|
|
codec_.simulcastStream[1].minBitrate;
|
|
uint32_t expected[] = {codec_.simulcastStream[0].targetBitrate,
|
|
codec_.simulcastStream[1].minBitrate, 0};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
}
|
|
|
|
{
|
|
// Second stream maxed out, but not enough for third.
|
|
const uint32_t bitrate = codec_.simulcastStream[0].targetBitrate +
|
|
codec_.simulcastStream[1].maxBitrate;
|
|
uint32_t expected[] = {codec_.simulcastStream[0].targetBitrate,
|
|
codec_.simulcastStream[1].maxBitrate, 0};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
}
|
|
|
|
{
|
|
// First two streams maxed out, but not enough for third. Nowhere to put
|
|
// remaining bits.
|
|
const uint32_t bitrate = codec_.simulcastStream[0].maxBitrate +
|
|
codec_.simulcastStream[1].maxBitrate + 499;
|
|
uint32_t expected[] = {codec_.simulcastStream[0].targetBitrate,
|
|
codec_.simulcastStream[1].maxBitrate, 0};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
}
|
|
|
|
{
|
|
// Just enough for all three streams.
|
|
const uint32_t bitrate = codec_.simulcastStream[0].targetBitrate +
|
|
codec_.simulcastStream[1].targetBitrate +
|
|
codec_.simulcastStream[2].minBitrate;
|
|
uint32_t expected[] = {codec_.simulcastStream[0].targetBitrate,
|
|
codec_.simulcastStream[1].targetBitrate,
|
|
codec_.simulcastStream[2].minBitrate};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
}
|
|
|
|
{
|
|
// Third maxed out.
|
|
const uint32_t bitrate = codec_.simulcastStream[0].targetBitrate +
|
|
codec_.simulcastStream[1].targetBitrate +
|
|
codec_.simulcastStream[2].maxBitrate;
|
|
uint32_t expected[] = {codec_.simulcastStream[0].targetBitrate,
|
|
codec_.simulcastStream[1].targetBitrate,
|
|
codec_.simulcastStream[2].maxBitrate};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
}
|
|
|
|
{
|
|
// Enough to max out all streams which will allocate the target amount to
|
|
// the lower streams.
|
|
const uint32_t bitrate = codec_.simulcastStream[0].maxBitrate +
|
|
codec_.simulcastStream[1].maxBitrate +
|
|
codec_.simulcastStream[2].maxBitrate;
|
|
uint32_t expected[] = {codec_.simulcastStream[0].targetBitrate,
|
|
codec_.simulcastStream[1].targetBitrate,
|
|
codec_.simulcastStream[2].maxBitrate};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
}
|
|
}
|
|
|
|
// If three simulcast streams that are all inactive, none of them should be
|
|
// allocated bitrate.
|
|
TEST_F(SimulcastRateAllocatorTest, ThreeStreamsInactive) {
|
|
const std::vector<bool> active_streams(3, false);
|
|
SetupCodecThreeSimulcastStreams(active_streams);
|
|
CreateAllocator();
|
|
|
|
// Just enough to allocate the min.
|
|
const uint32_t min_bitrate = codec_.simulcastStream[0].minBitrate +
|
|
codec_.simulcastStream[1].minBitrate +
|
|
codec_.simulcastStream[2].minBitrate;
|
|
// Enough bitrate to allocate target to all streams.
|
|
const uint32_t target_bitrate = codec_.simulcastStream[0].targetBitrate +
|
|
codec_.simulcastStream[1].targetBitrate +
|
|
codec_.simulcastStream[2].targetBitrate;
|
|
// Enough bitrate to allocate max to all streams.
|
|
const uint32_t max_bitrate = codec_.simulcastStream[0].maxBitrate +
|
|
codec_.simulcastStream[1].maxBitrate +
|
|
codec_.simulcastStream[2].maxBitrate;
|
|
uint32_t expected[] = {0, 0, 0};
|
|
ExpectEqual(expected, GetAllocation(0));
|
|
ExpectEqual(expected, GetAllocation(min_bitrate));
|
|
ExpectEqual(expected, GetAllocation(target_bitrate));
|
|
ExpectEqual(expected, GetAllocation(max_bitrate));
|
|
}
|
|
|
|
// If there are two simulcast streams, we expect the high active stream to be
|
|
// allocated as if it is a single active stream.
|
|
TEST_F(SimulcastRateAllocatorTest, TwoStreamsLowInactive) {
|
|
const std::vector<bool> active_streams({false, true});
|
|
SetupCodecTwoSimulcastStreams(active_streams);
|
|
CreateAllocator();
|
|
|
|
const uint32_t kActiveStreamMinBitrate = codec_.simulcastStream[1].minBitrate;
|
|
const uint32_t kActiveStreamTargetBitrate =
|
|
codec_.simulcastStream[1].targetBitrate;
|
|
const uint32_t kActiveStreamMaxBitrate = codec_.simulcastStream[1].maxBitrate;
|
|
{
|
|
// Expect that the stream is always allocated its min bitrate.
|
|
uint32_t expected[] = {0, kActiveStreamMinBitrate};
|
|
ExpectEqual(expected, GetAllocation(0));
|
|
ExpectEqual(expected, GetAllocation(kActiveStreamMinBitrate - 10));
|
|
ExpectEqual(expected, GetAllocation(kActiveStreamMinBitrate));
|
|
}
|
|
|
|
{
|
|
// The stream should be allocated its target bitrate.
|
|
uint32_t expected[] = {0, kActiveStreamTargetBitrate};
|
|
ExpectEqual(expected, GetAllocation(kActiveStreamTargetBitrate));
|
|
}
|
|
|
|
{
|
|
// The stream should be allocated its max if the target input is sufficient.
|
|
uint32_t expected[] = {0, kActiveStreamMaxBitrate};
|
|
ExpectEqual(expected, GetAllocation(kActiveStreamMaxBitrate));
|
|
ExpectEqual(expected, GetAllocation(std::numeric_limits<uint32_t>::max()));
|
|
}
|
|
}
|
|
|
|
// If there are two simulcast streams, we expect the low active stream to be
|
|
// allocated as if it is a single active stream.
|
|
TEST_F(SimulcastRateAllocatorTest, TwoStreamsHighInactive) {
|
|
const std::vector<bool> active_streams({true, false});
|
|
SetupCodecTwoSimulcastStreams(active_streams);
|
|
CreateAllocator();
|
|
|
|
const uint32_t kActiveStreamMinBitrate = codec_.simulcastStream[0].minBitrate;
|
|
const uint32_t kActiveStreamTargetBitrate =
|
|
codec_.simulcastStream[0].targetBitrate;
|
|
const uint32_t kActiveStreamMaxBitrate = codec_.simulcastStream[0].maxBitrate;
|
|
{
|
|
// Expect that the stream is always allocated its min bitrate.
|
|
uint32_t expected[] = {kActiveStreamMinBitrate, 0};
|
|
ExpectEqual(expected, GetAllocation(0));
|
|
ExpectEqual(expected, GetAllocation(kActiveStreamMinBitrate - 10));
|
|
ExpectEqual(expected, GetAllocation(kActiveStreamMinBitrate));
|
|
}
|
|
|
|
{
|
|
// The stream should be allocated its target bitrate.
|
|
uint32_t expected[] = {kActiveStreamTargetBitrate, 0};
|
|
ExpectEqual(expected, GetAllocation(kActiveStreamTargetBitrate));
|
|
}
|
|
|
|
{
|
|
// The stream should be allocated its max if the target input is sufficent.
|
|
uint32_t expected[] = {kActiveStreamMaxBitrate, 0};
|
|
ExpectEqual(expected, GetAllocation(kActiveStreamMaxBitrate));
|
|
ExpectEqual(expected, GetAllocation(std::numeric_limits<uint32_t>::max()));
|
|
}
|
|
}
|
|
|
|
// If there are three simulcast streams and the middle stream is inactive, the
|
|
// other two streams should be allocated bitrate the same as if they are two
|
|
// active simulcast streams.
|
|
TEST_F(SimulcastRateAllocatorTest, ThreeStreamsMiddleInactive) {
|
|
const std::vector<bool> active_streams({true, false, true});
|
|
SetupCodecThreeSimulcastStreams(active_streams);
|
|
CreateAllocator();
|
|
|
|
{
|
|
const uint32_t kLowStreamMinBitrate = codec_.simulcastStream[0].minBitrate;
|
|
// The lowest stream should always be allocated its minimum bitrate.
|
|
uint32_t expected[] = {kLowStreamMinBitrate, 0, 0};
|
|
ExpectEqual(expected, GetAllocation(0));
|
|
ExpectEqual(expected, GetAllocation(kLowStreamMinBitrate - 10));
|
|
ExpectEqual(expected, GetAllocation(kLowStreamMinBitrate));
|
|
}
|
|
|
|
{
|
|
// The lowest stream gets its target bitrate.
|
|
uint32_t expected[] = {codec_.simulcastStream[0].targetBitrate, 0, 0};
|
|
ExpectEqual(expected,
|
|
GetAllocation(codec_.simulcastStream[0].targetBitrate));
|
|
}
|
|
|
|
{
|
|
// The lowest stream gets its max bitrate, but not enough for the high
|
|
// stream.
|
|
const uint32_t bitrate = codec_.simulcastStream[0].targetBitrate +
|
|
codec_.simulcastStream[2].minBitrate - 1;
|
|
uint32_t expected[] = {codec_.simulcastStream[0].maxBitrate, 0, 0};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
}
|
|
|
|
{
|
|
// Both active streams get allocated target bitrate.
|
|
const uint32_t bitrate = codec_.simulcastStream[0].targetBitrate +
|
|
codec_.simulcastStream[2].targetBitrate;
|
|
uint32_t expected[] = {codec_.simulcastStream[0].targetBitrate, 0,
|
|
codec_.simulcastStream[2].targetBitrate};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
}
|
|
|
|
{
|
|
// Lowest stream gets its target bitrate, high stream gets its max bitrate.
|
|
uint32_t bitrate = codec_.simulcastStream[0].targetBitrate +
|
|
codec_.simulcastStream[2].maxBitrate;
|
|
uint32_t expected[] = {codec_.simulcastStream[0].targetBitrate, 0,
|
|
codec_.simulcastStream[2].maxBitrate};
|
|
ExpectEqual(expected, GetAllocation(bitrate));
|
|
ExpectEqual(expected, GetAllocation(bitrate + 10));
|
|
ExpectEqual(expected, GetAllocation(std::numeric_limits<uint32_t>::max()));
|
|
}
|
|
}
|
|
|
|
class ScreenshareRateAllocationTest : public SimulcastRateAllocatorTest {
|
|
public:
|
|
void SetupConferenceScreenshare(bool use_simulcast, bool active = true) {
|
|
codec_.mode = VideoCodecMode::kScreensharing;
|
|
codec_.minBitrate = kMinBitrateKbps;
|
|
codec_.maxBitrate = kMaxBitrateKbps;
|
|
if (use_simulcast) {
|
|
codec_.numberOfSimulcastStreams = 1;
|
|
codec_.simulcastStream[0].minBitrate = kMinBitrateKbps;
|
|
codec_.simulcastStream[0].targetBitrate = kTargetBitrateKbps;
|
|
codec_.simulcastStream[0].maxBitrate = kMaxBitrateKbps;
|
|
codec_.simulcastStream[0].numberOfTemporalLayers = 2;
|
|
codec_.simulcastStream[0].active = active;
|
|
} else {
|
|
codec_.numberOfSimulcastStreams = 0;
|
|
codec_.targetBitrate = kTargetBitrateKbps;
|
|
codec_.VP8()->numberOfTemporalLayers = 2;
|
|
codec_.active = active;
|
|
}
|
|
}
|
|
};
|
|
|
|
INSTANTIATE_TEST_CASE_P(ScreenshareTest,
|
|
ScreenshareRateAllocationTest,
|
|
::testing::Bool());
|
|
|
|
TEST_P(ScreenshareRateAllocationTest, BitrateBelowTl0) {
|
|
SetupConferenceScreenshare(GetParam());
|
|
CreateAllocator();
|
|
|
|
VideoBitrateAllocation allocation =
|
|
allocator_->GetAllocation(kTargetBitrateKbps * 1000, kFramerateFps);
|
|
|
|
// All allocation should go in TL0.
|
|
EXPECT_EQ(kTargetBitrateKbps, allocation.get_sum_kbps());
|
|
EXPECT_EQ(kTargetBitrateKbps, allocation.GetBitrate(0, 0) / 1000);
|
|
}
|
|
|
|
TEST_P(ScreenshareRateAllocationTest, BitrateAboveTl0) {
|
|
SetupConferenceScreenshare(GetParam());
|
|
CreateAllocator();
|
|
|
|
uint32_t target_bitrate_kbps = (kTargetBitrateKbps + kMaxBitrateKbps) / 2;
|
|
VideoBitrateAllocation allocation =
|
|
allocator_->GetAllocation(target_bitrate_kbps * 1000, kFramerateFps);
|
|
|
|
// Fill TL0, then put the rest in TL1.
|
|
EXPECT_EQ(target_bitrate_kbps, allocation.get_sum_kbps());
|
|
EXPECT_EQ(kTargetBitrateKbps, allocation.GetBitrate(0, 0) / 1000);
|
|
EXPECT_EQ(target_bitrate_kbps - kTargetBitrateKbps,
|
|
allocation.GetBitrate(0, 1) / 1000);
|
|
}
|
|
|
|
TEST_P(ScreenshareRateAllocationTest, BitrateAboveTl1) {
|
|
SetupConferenceScreenshare(GetParam());
|
|
CreateAllocator();
|
|
|
|
VideoBitrateAllocation allocation =
|
|
allocator_->GetAllocation(kMaxBitrateKbps * 2000, kFramerateFps);
|
|
|
|
// Fill both TL0 and TL1, but no more.
|
|
EXPECT_EQ(kMaxBitrateKbps, allocation.get_sum_kbps());
|
|
EXPECT_EQ(kTargetBitrateKbps, allocation.GetBitrate(0, 0) / 1000);
|
|
EXPECT_EQ(kMaxBitrateKbps - kTargetBitrateKbps,
|
|
allocation.GetBitrate(0, 1) / 1000);
|
|
}
|
|
|
|
// This tests when the screenshare is inactive it should be allocated 0 bitrate
|
|
// for all layers.
|
|
TEST_P(ScreenshareRateAllocationTest, InactiveScreenshare) {
|
|
SetupConferenceScreenshare(GetParam(), false);
|
|
CreateAllocator();
|
|
|
|
// Enough bitrate for TL0 and TL1.
|
|
uint32_t target_bitrate_kbps = (kTargetBitrateKbps + kMaxBitrateKbps) / 2;
|
|
VideoBitrateAllocation allocation =
|
|
allocator_->GetAllocation(target_bitrate_kbps * 1000, kFramerateFps);
|
|
|
|
EXPECT_EQ(0U, allocation.get_sum_kbps());
|
|
}
|
|
} // namespace webrtc
|