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/*
* Copyright (c) 2022 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "modules/video_coding/frame_helpers.h"
#include <utility>
#include "api/scoped_refptr.h"
#include "api/units/timestamp.h"
#include "api/video/encoded_frame.h"
#include "api/video/encoded_image.h"
#include "common_video/frame_instrumentation_data.h"
#include "test/gmock.h"
#include "test/gtest.h"
namespace webrtc {
namespace {
using ::testing::ElementsAre;
constexpr uint32_t kRtpTimestamp = 123456710;
webrtc::scoped_refptr<EncodedImageBuffer> CreateEncodedImageBufferOfSizeN(
size_t n,
uint8_t x) {
webrtc::scoped_refptr<EncodedImageBuffer> buffer =
EncodedImageBuffer::Create(n);
for (size_t i = 0; i < n; ++i) {
buffer->data()[i] = static_cast<uint8_t>(x + i);
}
return buffer;
}
// Returns an `EncodedFrame` with data values [x, x+1, ... x+(n-1)].
EncodedFrame CreateEncodedImageOfSizeN(size_t n, uint8_t x) {
EncodedFrame image;
image.SetEncodedData(CreateEncodedImageBufferOfSizeN(n, x));
image.SetRtpTimestamp(kRtpTimestamp);
return image;
}
TEST(FrameHasBadRenderTimingTest, LargePositiveFrameDelayIsBad) {
Timestamp render_time = Timestamp::Seconds(12);
Timestamp now = Timestamp::Seconds(0);
EXPECT_TRUE(FrameHasBadRenderTiming(render_time, now));
}
TEST(FrameHasBadRenderTimingTest, LargeNegativeFrameDelayIsBad) {
Timestamp render_time = Timestamp::Seconds(12);
Timestamp now = Timestamp::Seconds(24);
EXPECT_TRUE(FrameHasBadRenderTiming(render_time, now));
}
TEST(FrameInstrumentationDataTest,
CombinedFrameHasSameDataAsHighestSpatialLayer) {
// Assume L2T1 scalability mode.
EncodedFrame spatial_layer_1 = CreateEncodedImageOfSizeN(/*n=*/10, /*x=*/1);
const FrameInstrumentationData frame_ins_data_1 = {
.sequence_index = 100,
.communicate_upper_bits = false,
.std_dev = 0.5,
.luma_error_threshold = 5,
.chroma_error_threshold = 4,
.sample_values = {0.2, 0.7, 1.9}};
spatial_layer_1.SetFrameInstrumentationData(frame_ins_data_1);
EncodedFrame spatial_layer_2 = CreateEncodedImageOfSizeN(/*n=*/10, /*x=*/11);
FrameInstrumentationData frame_ins_data_2 = {
.sequence_index = 10,
.communicate_upper_bits = false,
.std_dev = 1.0,
.luma_error_threshold = 3,
.chroma_error_threshold = 4,
.sample_values = {0.1, 0.3, 2.1}};
spatial_layer_2.SetFrameInstrumentationData(frame_ins_data_2);
absl::InlinedVector<std::unique_ptr<EncodedFrame>, 4> frames;
frames.push_back(std::make_unique<EncodedFrame>(spatial_layer_1));
frames.push_back(std::make_unique<EncodedFrame>(spatial_layer_2));
std::optional<
absl::variant<FrameInstrumentationSyncData, FrameInstrumentationData>>
data = CombineAndDeleteFrames(std::move(frames))
->CodecSpecific()
->frame_instrumentation_data;
ASSERT_TRUE(data.has_value());
ASSERT_TRUE(absl::holds_alternative<FrameInstrumentationData>(*data));
FrameInstrumentationData frame_instrumentation_data =
absl::get<FrameInstrumentationData>(*data);
// Expect to have the same frame_instrumentation_data as the highest spatial
// layer.
EXPECT_EQ(frame_instrumentation_data.sequence_index, 10);
EXPECT_FALSE(frame_instrumentation_data.communicate_upper_bits);
EXPECT_EQ(frame_instrumentation_data.std_dev, 1.0);
EXPECT_EQ(frame_instrumentation_data.luma_error_threshold, 3);
EXPECT_EQ(frame_instrumentation_data.chroma_error_threshold, 4);
EXPECT_THAT(frame_instrumentation_data.sample_values,
ElementsAre(0.1, 0.3, 2.1));
}
} // namespace
} // namespace webrtc
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