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

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This is a reland after changes to the downstream project

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: Ib21d7678bd839a3c47457515b0d768c0b979ea40
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/126524
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@{#27040}
This commit is contained in:
Ilya Nikolaevskiy
2019-03-08 14:27:19 +00:00
committed by Commit Bot
parent 62c7b39c71
commit cad95b831e
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);