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Revert "Reland "Enable quality scaling when allowed""

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This reverts commit 83be84bb74133343358bba22e4e5106ecc385721.

Reason for revert: Suspect of crbug.com/1185276

Original change's description:
> Reland "Enable quality scaling when allowed"
>
> This reverts commit 609b524dd3ff36719b5c4470b85d37dcdadfb1f8.
>
> Reason for revert: Disable QualityScalingAllowed_QualityScalingEnabled on iOS.
>
> Original change's description:
> Before this CL quality scaling was conditioned on scaling settings
> provided by encoder. That should not be a requirement since encoder
> may not be aware of quality scaling which is a WebRTC feature. In M90
> chromium HW encoders do not provide scaling settings (chromium:1179020).
> The default scaling settings provided by these encoders are not correct
> (b/181537172).
>
> This CL adds is_quality_scaling_allowed to VideoEncoderConfig. The flag
> is set to true in singlecast with normal video feed (not screen sharing)
> mode. If quality scaling is allowed it is enabled no matter whether
> scaling settings are present in encoder info or not. Setting from
> QualityScalingExperiment are used in case if not provided by encoder.
>
> Bug: chromium:1179020
> Bug: webrtc:12511
> Change-Id: Ia0923e5a62acdfdeb06f9aad5d670be8a0f8d746
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/209643
> Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
> Reviewed-by: Åsa Persson <asapersson@webrtc.org>
> Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#33385}

Bug: chromium:1179020
Bug: webrtc:12511
Change-Id: I7004014c5936176f8c125aeb55da91ce095b266e
TBR: ssilkin@webrtc.org
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/209708
Reviewed-by: Guido Urdaneta <guidou@webrtc.org>
Commit-Queue: Guido Urdaneta <guidou@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33393}
This commit is contained in:
Guido Urdaneta 2021-03-06 04:20:14 +00:00 committed by Commit Bot
parent 77f97ec066
commit eb449a979b
6 changed files with 5 additions and 120 deletions
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3
api/video_codecs/video_encoder_config.cc
View File

@ -57,8 +57,7 @@ VideoEncoderConfig::VideoEncoderConfig()
max_bitrate_bps(0),
bitrate_priority(1.0),
number_of_streams(0),
legacy_conference_mode(false),
is_quality_scaling_allowed(false) {}
legacy_conference_mode(false) {}
VideoEncoderConfig::VideoEncoderConfig(VideoEncoderConfig&&) = default;

3
api/video_codecs/video_encoder_config.h
View File

@ -181,9 +181,6 @@ class VideoEncoderConfig {
// Legacy Google conference mode flag for simulcast screenshare
bool legacy_conference_mode;
// Indicates whether quality scaling can be used or not.
bool is_quality_scaling_allowed;
private:
// Access to the copy constructor is private to force use of the Copy()
// method for those exceptional cases where we do use it.

6
media/engine/webrtc_video_engine.cc
View File

@ -2492,17 +2492,11 @@ WebRtcVideoChannel::WebRtcVideoSendStream::CreateVideoEncoderConfig(
encoder_config.legacy_conference_mode = parameters_.conference_mode;
encoder_config.is_quality_scaling_allowed =
!disable_automatic_resize_ && !is_screencast &&
(parameters_.config.rtp.ssrcs.size() == 1 ||
NumActiveStreams(rtp_parameters_) == 1);
int max_qp = kDefaultQpMax;
codec.GetParam(kCodecParamMaxQuantization, &max_qp);
encoder_config.video_stream_factory =
new rtc::RefCountedObject<EncoderStreamFactory>(
codec.name, max_qp, is_screencast, parameters_.conference_mode);
return encoder_config;
}

42
media/engine/webrtc_video_engine_unittest.cc
View File

@ -8302,48 +8302,6 @@ TEST_F(WebRtcVideoChannelTest, ConfiguresLocalSsrcOnExistingReceivers) {
TestReceiverLocalSsrcConfiguration(true);
}
TEST_F(WebRtcVideoChannelTest, Simulcast_QualityScalingNotAllowed) {
FakeVideoSendStream* stream = SetUpSimulcast(true, true);
EXPECT_FALSE(stream->GetEncoderConfig().is_quality_scaling_allowed);
}
TEST_F(WebRtcVideoChannelTest, Singlecast_QualityScalingAllowed) {
FakeVideoSendStream* stream = SetUpSimulcast(false, true);
EXPECT_TRUE(stream->GetEncoderConfig().is_quality_scaling_allowed);
}
TEST_F(WebRtcVideoChannelTest,
SinglecastScreenSharing_QualityScalingNotAllowed) {
SetUpSimulcast(false, true);
webrtc::test::FrameForwarder frame_forwarder;
VideoOptions options;
options.is_screencast = true;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &frame_forwarder));
// Fetch the latest stream since SetVideoSend() may recreate it if the
// screen content setting is changed.
FakeVideoSendStream* stream = fake_call_->GetVideoSendStreams().front();
EXPECT_FALSE(stream->GetEncoderConfig().is_quality_scaling_allowed);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest,
SimulcastSingleActiveStream_QualityScalingAllowed) {
FakeVideoSendStream* stream = SetUpSimulcast(true, false);
webrtc::RtpParameters rtp_parameters =
channel_->GetRtpSendParameters(last_ssrc_);
ASSERT_EQ(3u, rtp_parameters.encodings.size());
ASSERT_TRUE(rtp_parameters.encodings[0].active);
ASSERT_TRUE(rtp_parameters.encodings[1].active);
ASSERT_TRUE(rtp_parameters.encodings[2].active);
rtp_parameters.encodings[0].active = false;
rtp_parameters.encodings[1].active = false;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, rtp_parameters).ok());
EXPECT_TRUE(stream->GetEncoderConfig().is_quality_scaling_allowed);
}
class WebRtcVideoChannelSimulcastTest : public ::testing::Test {
public:
WebRtcVideoChannelSimulcastTest()

10
video/adaptation/video_stream_encoder_resource_manager.cc
View File

@ -521,9 +521,7 @@ void VideoStreamEncoderResourceManager::ConfigureQualityScaler(
const auto scaling_settings = encoder_info.scaling_settings;
const bool quality_scaling_allowed =
IsResolutionScalingEnabled(degradation_preference_) &&
(scaling_settings.thresholds.has_value() ||
(encoder_settings_.has_value() &&
encoder_settings_->encoder_config().is_quality_scaling_allowed));
scaling_settings.thresholds;
// TODO(https://crbug.com/webrtc/11222): Should this move to
// QualityScalerResource?
@ -537,9 +535,9 @@ void VideoStreamEncoderResourceManager::ConfigureQualityScaler(
experimental_thresholds = QualityScalingExperiment::GetQpThresholds(
GetVideoCodecTypeOrGeneric(encoder_settings_));
}
UpdateQualityScalerSettings(experimental_thresholds.has_value()
? experimental_thresholds
: scaling_settings.thresholds);
UpdateQualityScalerSettings(experimental_thresholds
? *experimental_thresholds
: *(scaling_settings.thresholds));
}
} else {
UpdateQualityScalerSettings(absl::nullopt);

61
video/video_stream_encoder_unittest.cc
View File

@ -7922,65 +7922,4 @@ TEST_F(VideoStreamEncoderTest, EncoderResolutionsExposedInSimulcast) {
video_stream_encoder_->Stop();
}
TEST_F(VideoStreamEncoderTest,
QualityScalingNotAllowed_QualityScalingDisabled) {
VideoEncoderConfig video_encoder_config = video_encoder_config_.Copy();
// Disable scaling settings in encoder info.
fake_encoder_.SetQualityScaling(false);
// Disable quality scaling in encoder config.
video_encoder_config.is_quality_scaling_allowed = false;
ConfigureEncoder(std::move(video_encoder_config));
video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources(
DataRate::BitsPerSec(kTargetBitrateBps),
DataRate::BitsPerSec(kTargetBitrateBps),
DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0);
test::FrameForwarder source;
video_stream_encoder_->SetSource(
&source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE);
EXPECT_THAT(source.sink_wants(), UnlimitedSinkWants());
EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution);
source.IncomingCapturedFrame(CreateFrame(1, 1280, 720));
WaitForEncodedFrame(1);
video_stream_encoder_->TriggerQualityLow();
EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution);
video_stream_encoder_->Stop();
}
#if !defined(WEBRTC_IOS)
// TODO(bugs.webrtc.org/12401): Disabled because WebRTC-Video-QualityScaling is
// disabled by default on iOS.
TEST_F(VideoStreamEncoderTest, QualityScalingAllowed_QualityScalingEnabled) {
VideoEncoderConfig video_encoder_config = video_encoder_config_.Copy();
// Disable scaling settings in encoder info.
fake_encoder_.SetQualityScaling(false);
// Enable quality scaling in encoder config.
video_encoder_config.is_quality_scaling_allowed = true;
ConfigureEncoder(std::move(video_encoder_config));
video_stream_encoder_->OnBitrateUpdatedAndWaitForManagedResources(
DataRate::BitsPerSec(kTargetBitrateBps),
DataRate::BitsPerSec(kTargetBitrateBps),
DataRate::BitsPerSec(kTargetBitrateBps), 0, 0, 0);
test::FrameForwarder source;
video_stream_encoder_->SetSource(
&source, webrtc::DegradationPreference::MAINTAIN_FRAMERATE);
EXPECT_THAT(source.sink_wants(), UnlimitedSinkWants());
EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution);
source.IncomingCapturedFrame(CreateFrame(1, 1280, 720));
WaitForEncodedFrame(1);
video_stream_encoder_->TriggerQualityLow();
EXPECT_TRUE(stats_proxy_->GetStats().bw_limited_resolution);
video_stream_encoder_->Stop();
}
#endif
} // namespace webrtc