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Reland "Tune vp9 screenshare bitrate and framerate of spatial layers"

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This is a reland without any changes as it seems problems with webrtc-in-chrome importer were flakes or
caused by some issues within chrome codebase.

Tune vp9 screenshare bitrate and framerate of spatial layers

VP9 screenshare is not used currently, and with these values according
to local testing with screenshare_loopback, we get performance not worse than current vp8 settings for similar uplink and downlink values.

Original Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/126226

Bug: webrtc:10257
Change-Id: Ie819d8bbab4f14877daac733d162e5ae7ebf2a8e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/126460
Reviewed-by: Johannes Kron <kron@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27036}
This commit is contained in:
Ilya Nikolaevskiy
2019-03-08 08:47:01 +00:00
committed by Commit Bot
parent 304e9d2df3
commit 12abf671fd
2 changed files with 5 additions and 5 deletions
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8
modules/video_coding/codecs/vp9/svc_config.cc
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@ -23,10 +23,10 @@ namespace {
const size_t kMinVp9SvcBitrateKbps = 30;
const size_t kMaxNumLayersForScreenSharing = 3;
const float kMaxScreenSharingLayerFramerateFps[] = {5.0, 5.0, 30.0};
const size_t kMinScreenSharingLayerBitrateKbps[] = {30, 150, 500};
const size_t kTargetScreenSharingLayerBitrateKbps[] = {150, 350, 1000};
const size_t kMaxScreenSharingLayerBitrateKbps[] = {200, 500, 1000};
const float kMaxScreenSharingLayerFramerateFps[] = {5.0, 10.0, 30.0};
const size_t kMinScreenSharingLayerBitrateKbps[] = {30, 200, 500};
const size_t kTargetScreenSharingLayerBitrateKbps[] = {150, 350, 950};
const size_t kMaxScreenSharingLayerBitrateKbps[] = {250, 500, 950};
} // namespace

2
modules/video_coding/codecs/vp9/svc_config_unittest.cc
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@ -54,7 +54,7 @@ TEST(SvcConfig, ScreenSharing) {
const SpatialLayer& layer = spatial_layers[i];
EXPECT_EQ(layer.width, 1920);
EXPECT_EQ(layer.height, 1080);
EXPECT_EQ(layer.maxFramerate, (i < 2) ? 5 : 30);
EXPECT_EQ(layer.maxFramerate, (i < 1) ? 5 : (i < 2 ? 10 : 30));
EXPECT_EQ(layer.numberOfTemporalLayers, 1);
EXPECT_LE(layer.minBitrate, layer.maxBitrate);
EXPECT_LE(layer.minBitrate, layer.targetBitrate);