Adding two tests:
1. Bitrate allocation strategy unit test 2. Perf test determining minimal supported bitrate with and without strategy Bug: webrtc:8243 Change-Id: Idf675fbadddb66c77b2582052d6497971eb99ad6 Reviewed-on: https://webrtc-review.googlesource.com/4880 Reviewed-by: Stefan Holmer <stefan@webrtc.org> Reviewed-by: Niels Moller <nisse@webrtc.org> Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org> Commit-Queue: Alex Narest <alexnarest@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20886}
This commit is contained in:
Alex Narest
Commit Bot
parent
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commit
d0e196bd26
@ -20,6 +20,7 @@
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#include "modules/audio_coding/include/audio_coding_module.h"
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#include "modules/audio_mixer/audio_mixer_impl.h"
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#include "modules/rtp_rtcp/include/rtp_header_parser.h"
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#include "rtc_base/bitrateallocationstrategy.h"
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#include "rtc_base/checks.h"
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#include "rtc_base/ptr_util.h"
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#include "rtc_base/thread_annotations.h"
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@ -66,6 +67,13 @@ class CallPerfTest : public test::CallTest {
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int threshold_ms,
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int start_time_ms,
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int run_time_ms);
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void TestMinAudioVideoBitrate(bool use_bitrate_allocation_strategy,
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int test_bitrate_from,
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int test_bitrate_to,
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int test_bitrate_step,
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int min_bwe,
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int start_bwe,
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int max_bwe);
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};
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class VideoRtcpAndSyncObserver : public test::RtpRtcpObserver,
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@ -790,4 +798,166 @@ TEST_F(CallPerfTest, KeepsHighBitrateWhenReconfiguringSender) {
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RunBaseTest(&test);
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}
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// Discovers the minimal supported audio+video bitrate. The test bitrate is
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// considered supported if Rtt does not go above 400ms with the network
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// contrained to the test bitrate.
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//
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// |use_bitrate_allocation_strategy| use AudioPriorityBitrateAllocationStrategy
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// |test_bitrate_from test_bitrate_to| bitrate constraint range
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// |test_bitrate_step| bitrate constraint update step during the test
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// |min_bwe max_bwe| BWE range
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// |start_bwe| initial BWE
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void CallPerfTest::TestMinAudioVideoBitrate(
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bool use_bitrate_allocation_strategy,
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int test_bitrate_from,
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int test_bitrate_to,
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int test_bitrate_step,
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int min_bwe,
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int start_bwe,
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int max_bwe) {
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static const std::string kAudioTrackId = "audio_track_0";
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static constexpr uint32_t kSufficientAudioBitrateBps = 16000;
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static constexpr int kOpusMinBitrateBps = 6000;
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static constexpr int kOpusBitrateFbBps = 32000;
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static constexpr int kBitrateStabilizationMs = 10000;
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static constexpr int kBitrateMeasurements = 10;
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static constexpr int kBitrateMeasurementMs = 1000;
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static constexpr int kMinGoodRttMs = 400;
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class MinVideoAndAudioBitrateTester : public test::EndToEndTest {
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public:
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MinVideoAndAudioBitrateTester(bool use_bitrate_allocation_strategy,
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int test_bitrate_from,
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int test_bitrate_to,
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int test_bitrate_step,
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int min_bwe,
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int start_bwe,
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int max_bwe)
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: EndToEndTest(),
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allocation_strategy_(new rtc::AudioPriorityBitrateAllocationStrategy(
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kAudioTrackId,
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kSufficientAudioBitrateBps)),
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use_bitrate_allocation_strategy_(use_bitrate_allocation_strategy),
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test_bitrate_from_(test_bitrate_from),
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test_bitrate_to_(test_bitrate_to),
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test_bitrate_step_(test_bitrate_step),
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min_bwe_(min_bwe),
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start_bwe_(start_bwe),
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max_bwe_(max_bwe) {}
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protected:
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FakeNetworkPipe::Config GetFakeNetworkPipeConfig() {
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FakeNetworkPipe::Config pipe_config;
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pipe_config.link_capacity_kbps = test_bitrate_from_;
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return pipe_config;
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}
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test::PacketTransport* CreateSendTransport(
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test::SingleThreadedTaskQueueForTesting* task_queue,
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Call* sender_call) override {
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return send_transport_ = new test::PacketTransport(
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task_queue, sender_call, this, test::PacketTransport::kSender,
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test::CallTest::payload_type_map_, GetFakeNetworkPipeConfig());
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}
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test::PacketTransport* CreateReceiveTransport(
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test::SingleThreadedTaskQueueForTesting* task_queue) override {
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return receive_transport_ = new test::PacketTransport(
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task_queue, nullptr, this, test::PacketTransport::kReceiver,
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test::CallTest::payload_type_map_, GetFakeNetworkPipeConfig());
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}
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void PerformTest() override {
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int last_passed_test_bitrate = -1;
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for (int test_bitrate = test_bitrate_from_;
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test_bitrate_from_ < test_bitrate_to_
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? test_bitrate <= test_bitrate_to_
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: test_bitrate >= test_bitrate_to_;
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test_bitrate += test_bitrate_step_) {
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FakeNetworkPipe::Config pipe_config;
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pipe_config.link_capacity_kbps = test_bitrate;
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send_transport_->SetConfig(pipe_config);
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receive_transport_->SetConfig(pipe_config);
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rtc::ThreadManager::Instance()->CurrentThread()->SleepMs(
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kBitrateStabilizationMs);
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int64_t avg_rtt = 0;
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for (int i = 0; i < kBitrateMeasurements; i++) {
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Call::Stats call_stats = sender_call_->GetStats();
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avg_rtt += call_stats.rtt_ms;
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rtc::ThreadManager::Instance()->CurrentThread()->SleepMs(
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kBitrateMeasurementMs);
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}
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avg_rtt = avg_rtt / kBitrateMeasurements;
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if (avg_rtt > kMinGoodRttMs) {
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break;
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} else {
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last_passed_test_bitrate = test_bitrate;
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}
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}
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EXPECT_GT(last_passed_test_bitrate, -1)
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<< "Minimum supported bitrate out of the test scope";
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webrtc::test::PrintResult("min_test_bitrate_",
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use_bitrate_allocation_strategy_
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? "with_allocation_strategy"
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: "no_allocation_strategy",
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"", last_passed_test_bitrate, "kbps", false);
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}
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void OnCallsCreated(Call* sender_call, Call* receiver_call) override {
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sender_call_ = sender_call;
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Call::Config::BitrateConfig bitrate_config;
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bitrate_config.min_bitrate_bps = min_bwe_;
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bitrate_config.start_bitrate_bps = start_bwe_;
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bitrate_config.max_bitrate_bps = max_bwe_;
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sender_call->SetBitrateConfig(bitrate_config);
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if (use_bitrate_allocation_strategy_) {
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sender_call->SetBitrateAllocationStrategy(
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std::move(allocation_strategy_));
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}
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}
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size_t GetNumVideoStreams() const override { return 1; }
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size_t GetNumAudioStreams() const override { return 1; }
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void ModifyAudioConfigs(
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AudioSendStream::Config* send_config,
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std::vector<AudioReceiveStream::Config>* receive_configs) override {
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if (use_bitrate_allocation_strategy_) {
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send_config->track_id = kAudioTrackId;
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send_config->min_bitrate_bps = kOpusMinBitrateBps;
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send_config->max_bitrate_bps = kOpusBitrateFbBps;
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} else {
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send_config->send_codec_spec->target_bitrate_bps =
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rtc::Optional<int>(kOpusBitrateFbBps);
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}
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}
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private:
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std::unique_ptr<rtc::BitrateAllocationStrategy> allocation_strategy_;
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const bool use_bitrate_allocation_strategy_;
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const int test_bitrate_from_;
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const int test_bitrate_to_;
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const int test_bitrate_step_;
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const int min_bwe_;
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const int start_bwe_;
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const int max_bwe_;
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test::PacketTransport* send_transport_;
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test::PacketTransport* receive_transport_;
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Call* sender_call_;
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} test(use_bitrate_allocation_strategy, test_bitrate_from, test_bitrate_to,
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test_bitrate_step, min_bwe, start_bwe, max_bwe);
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RunBaseTest(&test);
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}
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TEST_F(CallPerfTest, MinVideoAndAudioBitrate) {
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TestMinAudioVideoBitrate(false, 110, 40, -10, 10000, 70000, 200000);
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}
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TEST_F(CallPerfTest, MinVideoAndAudioBitrateWStrategy) {
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TestMinAudioVideoBitrate(true, 110, 40, -10, 10000, 70000, 200000);
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}
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} // namespace webrtc
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@ -860,6 +860,7 @@ if (rtc_include_tests) {
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"basictypes_unittest.cc",
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"bind_unittest.cc",
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"bitbuffer_unittest.cc",
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"bitrateallocationstrategy_unittest.cc",
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"buffer_unittest.cc",
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"bufferqueue_unittest.cc",
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"bytebuffer_unittest.cc",
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244
rtc_base/bitrateallocationstrategy_unittest.cc
Normal file
244
rtc_base/bitrateallocationstrategy_unittest.cc
Normal file
@ -0,0 +1,244 @@
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/*
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* Copyright 2017 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "rtc_base/bitrateallocationstrategy.h"
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#include "rtc_base/gunit.h"
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namespace rtc {
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std::vector<const rtc::BitrateAllocationStrategy::TrackConfig*>
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MakeTrackConfigPtrsVector(
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const std::vector<BitrateAllocationStrategy::TrackConfig>& track_configs) {
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std::vector<const rtc::BitrateAllocationStrategy::TrackConfig*>
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track_config_ptrs(track_configs.size());
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int i = 0;
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for (const auto& c : track_configs) {
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track_config_ptrs[i++] = &c;
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}
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return track_config_ptrs;
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}
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TEST(BitrateAllocationStrategyTest, SetAllBitratesToMinimum) {
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const std::string audio_track_id = "audio_track";
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constexpr uint32_t min_audio_bitrate = 6000;
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constexpr uint32_t max_audio_bitrate = 64000;
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const std::string video_track_id = "video_track";
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constexpr uint32_t min_video_bitrate = 30000;
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constexpr uint32_t max_video_bitrate = 300000;
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constexpr uint32_t min_other_bitrate = 3000;
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constexpr uint32_t max_other_bitrate = 30000;
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std::vector<BitrateAllocationStrategy::TrackConfig> track_configs = {
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BitrateAllocationStrategy::TrackConfig(
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min_audio_bitrate, max_audio_bitrate, false, audio_track_id),
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BitrateAllocationStrategy::TrackConfig(
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min_video_bitrate, max_video_bitrate, false, video_track_id),
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BitrateAllocationStrategy::TrackConfig(min_other_bitrate,
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max_other_bitrate, false, "")};
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std::vector<const rtc::BitrateAllocationStrategy::TrackConfig*>
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track_config_ptrs = MakeTrackConfigPtrsVector(track_configs);
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std::vector<uint32_t> allocations =
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BitrateAllocationStrategy::SetAllBitratesToMinimum(track_config_ptrs);
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EXPECT_EQ(min_audio_bitrate, allocations[0]);
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EXPECT_EQ(min_video_bitrate, allocations[1]);
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EXPECT_EQ(min_other_bitrate, allocations[2]);
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}
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TEST(BitrateAllocationStrategyTest, DistributeBitratesEvenly) {
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const std::string audio_track_id = "audio_track";
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constexpr uint32_t min_audio_bitrate = 16000;
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constexpr uint32_t max_audio_bitrate = 64000;
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const std::string video_track_id = "video_track";
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constexpr uint32_t min_video_bitrate = 30000;
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constexpr uint32_t max_video_bitrate = 300000;
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constexpr uint32_t min_other_bitrate = 3000;
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constexpr uint32_t max_other_bitrate = 30000;
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constexpr uint32_t available_bitrate = 52000;
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constexpr uint32_t even_bitrate_increase =
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(available_bitrate - min_audio_bitrate - min_video_bitrate -
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min_other_bitrate) /
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3;
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std::vector<BitrateAllocationStrategy::TrackConfig> track_configs = {
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BitrateAllocationStrategy::TrackConfig(
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min_audio_bitrate, max_audio_bitrate, false, audio_track_id),
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BitrateAllocationStrategy::TrackConfig(
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min_video_bitrate, max_video_bitrate, false, video_track_id),
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BitrateAllocationStrategy::TrackConfig(min_other_bitrate,
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max_other_bitrate, false, "")};
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std::vector<const rtc::BitrateAllocationStrategy::TrackConfig*>
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track_config_ptrs = MakeTrackConfigPtrsVector(track_configs);
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std::vector<uint32_t> allocations =
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BitrateAllocationStrategy::DistributeBitratesEvenly(track_config_ptrs,
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available_bitrate);
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EXPECT_EQ(min_audio_bitrate + even_bitrate_increase, allocations[0]);
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EXPECT_EQ(min_video_bitrate + even_bitrate_increase, allocations[1]);
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EXPECT_EQ(min_other_bitrate + even_bitrate_increase, allocations[2]);
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}
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std::vector<uint32_t> RunAudioPriorityAllocation(
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uint32_t sufficient_audio_bitrate,
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std::string audio_track_id,
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uint32_t min_audio_bitrate,
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uint32_t max_audio_bitrate,
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std::string video_track_id,
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uint32_t min_video_bitrate,
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uint32_t max_video_bitrate,
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uint32_t min_other_bitrate,
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uint32_t max_other_bitrate,
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uint32_t available_bitrate) {
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AudioPriorityBitrateAllocationStrategy allocation_strategy(
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audio_track_id, sufficient_audio_bitrate);
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std::vector<BitrateAllocationStrategy::TrackConfig> track_configs = {
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BitrateAllocationStrategy::TrackConfig(
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min_audio_bitrate, max_audio_bitrate, false, audio_track_id),
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BitrateAllocationStrategy::TrackConfig(
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min_video_bitrate, max_video_bitrate, false, video_track_id),
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BitrateAllocationStrategy::TrackConfig(min_other_bitrate,
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max_other_bitrate, false, "")};
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std::vector<const rtc::BitrateAllocationStrategy::TrackConfig*>
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track_config_ptrs = MakeTrackConfigPtrsVector(track_configs);
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return allocation_strategy.AllocateBitrates(available_bitrate,
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track_config_ptrs);
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}
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// Test that when the available bitrate is less than the sum of the minimum
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// bitrates, the minimum bitrate is allocated for each track.
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TEST(AudioPriorityBitrateAllocationStrategyTest, MinAllocateBitrate) {
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constexpr uint32_t sufficient_audio_bitrate = 16000;
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const std::string audio_track_id = "audio_track";
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constexpr uint32_t min_audio_bitrate = 6000;
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constexpr uint32_t max_audio_bitrate = 64000;
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const std::string video_track_id = "video_track";
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constexpr uint32_t min_video_bitrate = 30000;
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constexpr uint32_t max_video_bitrate = 300000;
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constexpr uint32_t min_other_bitrate = 3000;
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constexpr uint32_t max_other_bitrate = 30000;
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constexpr uint32_t available_bitrate = 10000;
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std::vector<uint32_t> allocations = RunAudioPriorityAllocation(
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sufficient_audio_bitrate, audio_track_id, min_audio_bitrate,
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max_audio_bitrate, video_track_id, min_video_bitrate, max_video_bitrate,
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min_other_bitrate, max_other_bitrate, available_bitrate);
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EXPECT_EQ(min_audio_bitrate, allocations[0]);
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EXPECT_EQ(min_video_bitrate, allocations[1]);
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EXPECT_EQ(min_other_bitrate, allocations[2]);
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}
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// Test that when the available bitrate is more than the sum of the max
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// bitrates, the max bitrate is allocated for each track.
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TEST(AudioPriorityBitrateAllocationStrategyTest, MaxAllocateBitrate) {
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constexpr uint32_t sufficient_audio_bitrate = 16000;
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const std::string audio_track_id = "audio_track";
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constexpr uint32_t min_audio_bitrate = 6000;
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constexpr uint32_t max_audio_bitrate = 64000;
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const std::string video_track_id = "video_track";
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constexpr uint32_t min_video_bitrate = 30000;
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constexpr uint32_t max_video_bitrate = 300000;
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constexpr uint32_t min_other_bitrate = 3000;
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constexpr uint32_t max_other_bitrate = 30000;
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constexpr uint32_t available_bitrate = 400000;
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std::vector<uint32_t> allocations = RunAudioPriorityAllocation(
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sufficient_audio_bitrate, audio_track_id, min_audio_bitrate,
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max_audio_bitrate, video_track_id, min_video_bitrate, max_video_bitrate,
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min_other_bitrate, max_other_bitrate, available_bitrate);
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// TODO(bugs.webrtc.org/8541): Until the bug is fixed not audio streams will
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// get up to kTransmissionMaxBitrateMultiplier*max_bitrate
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constexpr uint32_t video_bitrate =
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(available_bitrate - max_audio_bitrate - max_other_bitrate * 2);
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EXPECT_EQ(max_audio_bitrate, allocations[0]);
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EXPECT_EQ(video_bitrate, allocations[1]);
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EXPECT_EQ(max_other_bitrate * 2, allocations[2]);
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}
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// Test that audio track will get up to sufficient bitrate before video and
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// other bitrate will be allocated.
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TEST(AudioPriorityBitrateAllocationStrategyTest, AudioPriorityAllocateBitrate) {
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constexpr uint32_t sufficient_audio_bitrate = 16000;
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const std::string audio_track_id = "audio_track";
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constexpr uint32_t min_audio_bitrate = 6000;
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constexpr uint32_t max_audio_bitrate = 64000;
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const std::string video_track_id = "video_track";
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constexpr uint32_t min_video_bitrate = 30000;
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constexpr uint32_t max_video_bitrate = 300000;
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constexpr uint32_t min_other_bitrate = 3000;
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constexpr uint32_t max_other_bitrate = 30000;
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constexpr uint32_t available_bitrate = 49000;
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std::vector<uint32_t> allocations = RunAudioPriorityAllocation(
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sufficient_audio_bitrate, audio_track_id, min_audio_bitrate,
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max_audio_bitrate, video_track_id, min_video_bitrate, max_video_bitrate,
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min_other_bitrate, max_other_bitrate, available_bitrate);
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EXPECT_EQ(sufficient_audio_bitrate, allocations[0]);
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EXPECT_EQ(min_video_bitrate, allocations[1]);
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EXPECT_EQ(min_other_bitrate, allocations[2]);
|
||||
}
|
||||
|
||||
// Test that bitrate will be allocated evenly after sufficient audio bitrate is
|
||||
// allocated.
|
||||
TEST(AudioPriorityBitrateAllocationStrategyTest, EvenAllocateBitrate) {
|
||||
constexpr uint32_t sufficient_audio_bitrate = 16000;
|
||||
const std::string audio_track_id = "audio_track";
|
||||
constexpr uint32_t min_audio_bitrate = 6000;
|
||||
constexpr uint32_t max_audio_bitrate = 64000;
|
||||
const std::string video_track_id = "video_track";
|
||||
constexpr uint32_t min_video_bitrate = 30000;
|
||||
constexpr uint32_t max_video_bitrate = 300000;
|
||||
constexpr uint32_t min_other_bitrate = 3000;
|
||||
constexpr uint32_t max_other_bitrate = 30000;
|
||||
constexpr uint32_t available_bitrate = 52000;
|
||||
constexpr uint32_t even_bitrate_increase =
|
||||
(available_bitrate - sufficient_audio_bitrate - min_video_bitrate -
|
||||
min_other_bitrate) /
|
||||
3;
|
||||
|
||||
std::vector<uint32_t> allocations = RunAudioPriorityAllocation(
|
||||
sufficient_audio_bitrate, audio_track_id, min_audio_bitrate,
|
||||
max_audio_bitrate, video_track_id, min_video_bitrate, max_video_bitrate,
|
||||
min_other_bitrate, max_other_bitrate, available_bitrate);
|
||||
EXPECT_EQ(sufficient_audio_bitrate + even_bitrate_increase, allocations[0]);
|
||||
EXPECT_EQ(min_video_bitrate + even_bitrate_increase, allocations[1]);
|
||||
EXPECT_EQ(min_other_bitrate + even_bitrate_increase, allocations[2]);
|
||||
}
|
||||
|
||||
// Test that bitrate will be allocated to video after audio and other max
|
||||
// allocation.
|
||||
TEST(AudioPriorityBitrateAllocationStrategyTest, VideoAllocateBitrate) {
|
||||
constexpr uint32_t sufficient_audio_bitrate = 16000;
|
||||
const std::string audio_track_id = "audio_track";
|
||||
constexpr uint32_t min_audio_bitrate = 6000;
|
||||
constexpr uint32_t max_audio_bitrate = 64000;
|
||||
const std::string video_track_id = "video_track";
|
||||
constexpr uint32_t min_video_bitrate = 30000;
|
||||
constexpr uint32_t max_video_bitrate = 300000;
|
||||
constexpr uint32_t min_other_bitrate = 3000;
|
||||
constexpr uint32_t max_other_bitrate = 30000;
|
||||
constexpr uint32_t available_bitrate = 200000;
|
||||
constexpr uint32_t video_bitrate =
|
||||
available_bitrate - max_audio_bitrate - max_other_bitrate;
|
||||
|
||||
std::vector<uint32_t> allocations = RunAudioPriorityAllocation(
|
||||
sufficient_audio_bitrate, audio_track_id, min_audio_bitrate,
|
||||
max_audio_bitrate, video_track_id, min_video_bitrate, max_video_bitrate,
|
||||
min_other_bitrate, max_other_bitrate, available_bitrate);
|
||||
EXPECT_EQ(max_audio_bitrate, allocations[0]);
|
||||
EXPECT_EQ(video_bitrate, allocations[1]);
|
||||
EXPECT_EQ(max_other_bitrate, allocations[2]);
|
||||
}
|
||||
|
||||
} // namespace rtc
|
||||
Loading…
x
Reference in New Issue
Block a user