268 lines
10 KiB
C++
268 lines
10 KiB
C++
/*
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* Copyright (c) 2018 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 <string>
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#include "api/test/video/function_video_encoder_factory.h"
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#include "media/engine/internal_encoder_factory.h"
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#include "modules/video_coding/codecs/h264/include/h264.h"
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#include "modules/video_coding/codecs/vp8/include/vp8.h"
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#include "modules/video_coding/codecs/vp9/include/vp9.h"
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#include "test/call_test.h"
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#include "test/field_trial.h"
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#include "test/frame_generator_capturer.h"
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namespace webrtc {
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namespace {
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constexpr int kWidth = 1280;
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constexpr int kHeight = 720;
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constexpr int kLowStartBps = 100000;
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constexpr int kHighStartBps = 600000;
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constexpr size_t kTimeoutMs = 10000; // Some tests are expected to time out.
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void SetEncoderSpecific(VideoEncoderConfig* encoder_config,
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VideoCodecType type,
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bool automatic_resize,
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bool frame_dropping) {
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if (type == kVideoCodecVP8) {
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VideoCodecVP8 vp8 = VideoEncoder::GetDefaultVp8Settings();
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vp8.automaticResizeOn = automatic_resize;
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vp8.frameDroppingOn = frame_dropping;
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encoder_config->encoder_specific_settings = new rtc::RefCountedObject<
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VideoEncoderConfig::Vp8EncoderSpecificSettings>(vp8);
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} else if (type == kVideoCodecVP9) {
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VideoCodecVP9 vp9 = VideoEncoder::GetDefaultVp9Settings();
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vp9.automaticResizeOn = automatic_resize;
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vp9.frameDroppingOn = frame_dropping;
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encoder_config->encoder_specific_settings = new rtc::RefCountedObject<
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VideoEncoderConfig::Vp9EncoderSpecificSettings>(vp9);
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} else if (type == kVideoCodecH264) {
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VideoCodecH264 h264 = VideoEncoder::GetDefaultH264Settings();
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h264.frameDroppingOn = frame_dropping;
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encoder_config->encoder_specific_settings = new rtc::RefCountedObject<
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VideoEncoderConfig::H264EncoderSpecificSettings>(h264);
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}
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}
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} // namespace
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class QualityScalingTest : public test::CallTest {
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protected:
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void RunTest(VideoEncoderFactory* encoder_factory,
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const std::string& payload_name,
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int start_bps,
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bool automatic_resize,
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bool frame_dropping,
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bool expect_adaptation);
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const std::string kPrefix = "WebRTC-Video-QualityScaling/Enabled-";
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const std::string kEnd = ",0,0,0.9995,0.9999,1/";
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};
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void QualityScalingTest::RunTest(VideoEncoderFactory* encoder_factory,
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const std::string& payload_name,
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int start_bps,
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bool automatic_resize,
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bool frame_dropping,
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bool expect_adaptation) {
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class ScalingObserver
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: public test::SendTest,
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public test::FrameGeneratorCapturer::SinkWantsObserver {
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public:
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ScalingObserver(VideoEncoderFactory* encoder_factory,
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const std::string& payload_name,
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int start_bps,
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bool automatic_resize,
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bool frame_dropping,
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bool expect_adaptation)
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: SendTest(expect_adaptation ? kDefaultTimeoutMs : kTimeoutMs),
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encoder_factory_(encoder_factory),
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payload_name_(payload_name),
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start_bps_(start_bps),
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automatic_resize_(automatic_resize),
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frame_dropping_(frame_dropping),
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expect_adaptation_(expect_adaptation) {}
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private:
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void OnFrameGeneratorCapturerCreated(
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test::FrameGeneratorCapturer* frame_generator_capturer) override {
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frame_generator_capturer->SetSinkWantsObserver(this);
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// Set initial resolution.
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frame_generator_capturer->ChangeResolution(kWidth, kHeight);
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}
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// Called when FrameGeneratorCapturer::AddOrUpdateSink is called.
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void OnSinkWantsChanged(rtc::VideoSinkInterface<VideoFrame>* sink,
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const rtc::VideoSinkWants& wants) override {
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if (wants.max_pixel_count < kWidth * kHeight)
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observation_complete_.Set();
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}
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void ModifySenderBitrateConfig(
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BitrateConstraints* bitrate_config) override {
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bitrate_config->start_bitrate_bps = start_bps_;
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}
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void ModifyVideoConfigs(
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VideoSendStream::Config* send_config,
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std::vector<VideoReceiveStream::Config>* receive_configs,
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VideoEncoderConfig* encoder_config) override {
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send_config->encoder_settings.encoder_factory = encoder_factory_;
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send_config->rtp.payload_name = payload_name_;
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send_config->rtp.payload_type = kVideoSendPayloadType;
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const VideoCodecType codec_type = PayloadStringToCodecType(payload_name_);
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encoder_config->codec_type = codec_type;
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encoder_config->max_bitrate_bps = start_bps_;
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SetEncoderSpecific(encoder_config, codec_type, automatic_resize_,
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frame_dropping_);
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}
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void PerformTest() override {
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EXPECT_EQ(expect_adaptation_, Wait())
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<< "Timed out while waiting for a scale down.";
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}
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VideoEncoderFactory* const encoder_factory_;
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const std::string payload_name_;
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const int start_bps_;
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const bool automatic_resize_;
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const bool frame_dropping_;
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const bool expect_adaptation_;
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} test(encoder_factory, payload_name, start_bps, automatic_resize,
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frame_dropping, expect_adaptation);
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RunBaseTest(&test);
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}
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TEST_F(QualityScalingTest, AdaptsDownForHighQp_Vp8) {
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// VP8 QP thresholds, low:1, high:1 -> high QP.
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test::ScopedFieldTrials field_trials(kPrefix + "1,1,0,0,0,0" + kEnd);
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// QualityScaler enabled.
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const bool kAutomaticResize = true;
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const bool kFrameDropping = true;
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const bool kExpectAdapt = true;
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test::FunctionVideoEncoderFactory encoder_factory(
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[]() { return VP8Encoder::Create(); });
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RunTest(&encoder_factory, "VP8", kHighStartBps, kAutomaticResize,
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kFrameDropping, kExpectAdapt);
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}
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TEST_F(QualityScalingTest, NoAdaptDownForHighQpWithResizeOff_Vp8) {
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// VP8 QP thresholds, low:1, high:1 -> high QP.
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test::ScopedFieldTrials field_trials(kPrefix + "1,1,0,0,0,0" + kEnd);
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// QualityScaler disabled.
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const bool kAutomaticResize = false;
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const bool kFrameDropping = true;
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const bool kExpectAdapt = false;
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test::FunctionVideoEncoderFactory encoder_factory(
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[]() { return VP8Encoder::Create(); });
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RunTest(&encoder_factory, "VP8", kHighStartBps, kAutomaticResize,
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kFrameDropping, kExpectAdapt);
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}
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// TODO(bugs.webrtc.org/10388): Fix and re-enable.
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TEST_F(QualityScalingTest,
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DISABLED_NoAdaptDownForHighQpWithFrameDroppingOff_Vp8) {
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// VP8 QP thresholds, low:1, high:1 -> high QP.
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test::ScopedFieldTrials field_trials(kPrefix + "1,1,0,0,0,0" + kEnd);
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// QualityScaler disabled.
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const bool kAutomaticResize = true;
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const bool kFrameDropping = false;
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const bool kExpectAdapt = false;
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test::FunctionVideoEncoderFactory encoder_factory(
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[]() { return VP8Encoder::Create(); });
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RunTest(&encoder_factory, "VP8", kHighStartBps, kAutomaticResize,
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kFrameDropping, kExpectAdapt);
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}
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TEST_F(QualityScalingTest, NoAdaptDownForNormalQp_Vp8) {
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// VP8 QP thresholds, low:1, high:127 -> normal QP.
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test::ScopedFieldTrials field_trials(kPrefix + "1,127,0,0,0,0" + kEnd);
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// QualityScaler enabled.
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const bool kAutomaticResize = true;
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const bool kFrameDropping = true;
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const bool kExpectAdapt = false;
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test::FunctionVideoEncoderFactory encoder_factory(
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[]() { return VP8Encoder::Create(); });
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RunTest(&encoder_factory, "VP8", kHighStartBps, kAutomaticResize,
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kFrameDropping, kExpectAdapt);
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}
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TEST_F(QualityScalingTest, AdaptsDownForLowStartBitrate) {
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// VP8 QP thresholds, low:1, high:127 -> normal QP.
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test::ScopedFieldTrials field_trials(kPrefix + "1,127,0,0,0,0" + kEnd);
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// QualityScaler enabled.
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const bool kAutomaticResize = true;
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const bool kFrameDropping = true;
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const bool kExpectAdapt = true;
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test::FunctionVideoEncoderFactory encoder_factory(
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[]() { return VP8Encoder::Create(); });
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RunTest(&encoder_factory, "VP8", kLowStartBps, kAutomaticResize,
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kFrameDropping, kExpectAdapt);
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}
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TEST_F(QualityScalingTest, NoAdaptDownForLowStartBitrateWithScalingOff) {
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// VP8 QP thresholds, low:1, high:127 -> normal QP.
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test::ScopedFieldTrials field_trials(kPrefix + "1,127,0,0,0,0" + kEnd);
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// QualityScaler disabled.
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const bool kAutomaticResize = false;
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const bool kFrameDropping = true;
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const bool kExpectAdapt = false;
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test::FunctionVideoEncoderFactory encoder_factory(
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[]() { return VP8Encoder::Create(); });
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RunTest(&encoder_factory, "VP8", kLowStartBps, kAutomaticResize,
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kFrameDropping, kExpectAdapt);
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}
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TEST_F(QualityScalingTest, NoAdaptDownForHighQp_Vp9) {
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// VP9 QP thresholds, low:1, high:1 -> high QP.
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test::ScopedFieldTrials field_trials(kPrefix + "0,0,1,1,0,0" + kEnd +
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"WebRTC-VP9QualityScaler/Disabled/");
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// QualityScaler always disabled.
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const bool kAutomaticResize = true;
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const bool kFrameDropping = true;
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const bool kExpectAdapt = false;
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test::FunctionVideoEncoderFactory encoder_factory(
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[]() { return VP9Encoder::Create(); });
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RunTest(&encoder_factory, "VP9", kHighStartBps, kAutomaticResize,
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kFrameDropping, kExpectAdapt);
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}
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#if defined(WEBRTC_USE_H264)
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TEST_F(QualityScalingTest, AdaptsDownForHighQp_H264) {
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// H264 QP thresholds, low:1, high:1 -> high QP.
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test::ScopedFieldTrials field_trials(kPrefix + "0,0,0,0,1,1" + kEnd);
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// QualityScaler always enabled.
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const bool kAutomaticResize = false;
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const bool kFrameDropping = false;
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const bool kExpectAdapt = true;
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test::FunctionVideoEncoderFactory encoder_factory(
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[]() { return H264Encoder::Create(cricket::VideoCodec("H264")); });
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RunTest(&encoder_factory, "H264", kHighStartBps, kAutomaticResize,
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kFrameDropping, kExpectAdapt);
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}
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#endif // defined(WEBRTC_USE_H264)
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} // namespace webrtc
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