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048e9c2f45
vp9 encoder wrapper rely on that behavioue when generates vp9-specific temporal references Bug: webrtc:11999 Change-Id: Ie1b4cb60adf290992cc3307b56397a88eda78be4 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/211661 Reviewed-by: Philip Eliasson <philipel@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33446}
102 lines
3.7 KiB
C++
102 lines
3.7 KiB
C++
/*
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* Copyright (c) 2020 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 "modules/video_coding/svc/scalability_structure_full_svc.h"
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#include <vector>
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#include "modules/video_coding/svc/scalability_structure_test_helpers.h"
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#include "test/gmock.h"
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#include "test/gtest.h"
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namespace webrtc {
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namespace {
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using ::testing::IsEmpty;
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using ::testing::SizeIs;
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TEST(ScalabilityStructureL3T3Test, SkipS1T1FrameKeepsStructureValid) {
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ScalabilityStructureL3T3 structure;
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ScalabilityStructureWrapper wrapper(structure);
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structure.OnRatesUpdated(EnableTemporalLayers(/*s0=*/3, /*s1=*/3));
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auto frames = wrapper.GenerateFrames(/*num_temporal_units=*/1);
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EXPECT_THAT(frames, SizeIs(2));
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EXPECT_EQ(frames[0].temporal_id, 0);
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frames = wrapper.GenerateFrames(/*num_temporal_units=*/1);
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EXPECT_THAT(frames, SizeIs(2));
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EXPECT_EQ(frames[0].temporal_id, 2);
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structure.OnRatesUpdated(EnableTemporalLayers(/*s0=*/3, /*s1=*/0));
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frames = wrapper.GenerateFrames(/*num_temporal_units=*/1);
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EXPECT_THAT(frames, SizeIs(1));
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EXPECT_EQ(frames[0].temporal_id, 1);
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structure.OnRatesUpdated(EnableTemporalLayers(/*s0=*/3, /*s1=*/3));
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// Rely on checks inside GenerateFrames frame references are valid.
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frames = wrapper.GenerateFrames(/*num_temporal_units=*/1);
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EXPECT_THAT(frames, SizeIs(2));
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EXPECT_EQ(frames[0].temporal_id, 2);
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}
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TEST(ScalabilityStructureL3T3Test, SkipT1FrameByEncoderKeepsReferencesValid) {
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std::vector<GenericFrameInfo> frames;
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ScalabilityStructureL3T3 structure;
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ScalabilityStructureWrapper wrapper(structure);
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// 1st 2 temporal units (T0 and T2)
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wrapper.GenerateFrames(/*num_temporal_units=*/2, frames);
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// Simulate T1 frame dropped by the encoder,
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// i.e. retrieve config, but skip calling OnEncodeDone.
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structure.NextFrameConfig(/*restart=*/false);
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// one more temporal units (T2)
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wrapper.GenerateFrames(/*num_temporal_units=*/1, frames);
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EXPECT_TRUE(wrapper.FrameReferencesAreValid(frames));
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}
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TEST(ScalabilityStructureL3T3Test,
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SkippingFrameReusePreviousFrameConfiguration) {
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std::vector<GenericFrameInfo> frames;
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ScalabilityStructureL3T3 structure;
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ScalabilityStructureWrapper wrapper(structure);
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// 1st 2 temporal units (T0 and T2)
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wrapper.GenerateFrames(/*num_temporal_units=*/2, frames);
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ASSERT_THAT(frames, SizeIs(6));
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ASSERT_EQ(frames[0].temporal_id, 0);
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ASSERT_EQ(frames[3].temporal_id, 2);
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// Simulate a frame dropped by the encoder,
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// i.e. retrieve config, but skip calling OnEncodeDone.
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structure.NextFrameConfig(/*restart=*/false);
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// two more temporal unit, expect temporal pattern continues
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wrapper.GenerateFrames(/*num_temporal_units=*/2, frames);
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ASSERT_THAT(frames, SizeIs(12));
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// Expect temporal pattern continues as if there were no dropped frames.
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EXPECT_EQ(frames[6].temporal_id, 1);
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EXPECT_EQ(frames[9].temporal_id, 2);
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}
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TEST(ScalabilityStructureL3T3Test, SwitchSpatialLayerBeforeT1Frame) {
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ScalabilityStructureL3T3 structure;
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ScalabilityStructureWrapper wrapper(structure);
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structure.OnRatesUpdated(EnableTemporalLayers(/*s0=*/2, /*s1=*/0));
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EXPECT_THAT(wrapper.GenerateFrames(1), SizeIs(1));
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structure.OnRatesUpdated(EnableTemporalLayers(/*s0=*/0, /*s1=*/2));
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auto frames = wrapper.GenerateFrames(1);
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ASSERT_THAT(frames, SizeIs(1));
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EXPECT_THAT(frames[0].frame_diffs, IsEmpty());
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EXPECT_EQ(frames[0].temporal_id, 0);
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}
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} // namespace
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} // namespace webrtc
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