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/*
* Copyright (c) 2021 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/utility/vp9_uncompressed_header_parser.h"
#include "test/gmock.h"
#include "test/gtest.h"
namespace webrtc {
namespace vp9 {
using ::testing::AllOf;
using ::testing::ElementsAre;
using ::testing::Eq;
using ::testing::Field;
using ::testing::Optional;
TEST(Vp9UncompressedHeaderParserTest, FrameWithSegmentation) {
// Uncompressed header from a frame generated with libvpx.
// Encoded QVGA frame (SL0 of a VGA frame) that includes a segmentation.
const uint8_t kHeader[] = {
0x87, 0x01, 0x00, 0x00, 0x02, 0x7e, 0x01, 0xdf, 0x02, 0x7f, 0x01, 0xdf,
0xc6, 0x87, 0x04, 0x83, 0x83, 0x2e, 0x46, 0x60, 0x20, 0x38, 0x0c, 0x06,
0x03, 0xcd, 0x80, 0xc0, 0x60, 0x9f, 0xc5, 0x46, 0x00, 0x00, 0x00, 0x00,
0x2e, 0x73, 0xb7, 0xee, 0x22, 0x06, 0x81, 0x82, 0xd4, 0xef, 0xc3, 0x58,
0x1f, 0x12, 0xd2, 0x7b, 0x28, 0x1f, 0x80, 0xfc, 0x07, 0xe0, 0x00, 0x00};
std::optional<Vp9UncompressedHeader> frame_info =
ParseUncompressedVp9Header(kHeader);
ASSERT_TRUE(frame_info.has_value());
EXPECT_FALSE(frame_info->is_keyframe);
EXPECT_TRUE(frame_info->error_resilient);
EXPECT_TRUE(frame_info->show_frame);
EXPECT_FALSE(frame_info->show_existing_frame);
EXPECT_EQ(frame_info->base_qp, 185);
EXPECT_EQ(frame_info->frame_width, 320);
EXPECT_EQ(frame_info->frame_height, 240);
EXPECT_EQ(frame_info->render_width, 640);
EXPECT_EQ(frame_info->render_height, 480);
EXPECT_TRUE(frame_info->allow_high_precision_mv);
EXPECT_EQ(frame_info->frame_context_idx, 0u);
EXPECT_EQ(frame_info->interpolation_filter,
Vp9InterpolationFilter::kSwitchable);
EXPECT_EQ(frame_info->is_lossless, false);
EXPECT_EQ(frame_info->profile, 0);
EXPECT_THAT(frame_info->reference_buffers, ElementsAre(0, 0, 0));
EXPECT_THAT(frame_info->reference_buffers_sign_bias, 0b0000);
EXPECT_EQ(frame_info->updated_buffers, 0b10000000);
EXPECT_EQ(frame_info->tile_cols_log2, 0u);
EXPECT_EQ(frame_info->tile_rows_log2, 0u);
EXPECT_EQ(frame_info->render_size_offset_bits, 64u);
EXPECT_EQ(frame_info->loop_filter_params_offset_bits, 100u);
EXPECT_EQ(frame_info->compressed_header_size, 23u);
EXPECT_EQ(frame_info->uncompressed_header_size, 37u);
EXPECT_TRUE(frame_info->segmentation_enabled);
EXPECT_FALSE(frame_info->segmentation_is_delta);
EXPECT_THAT(frame_info->segmentation_pred_prob,
Optional(ElementsAre(205, 1, 1)));
EXPECT_THAT(frame_info->segmentation_tree_probs,
Optional(ElementsAre(255, 255, 128, 1, 128, 128, 128)));
EXPECT_THAT(frame_info->segmentation_features[1][kVp9SegLvlAlt_Q], Eq(-63));
EXPECT_THAT(frame_info->segmentation_features[2][kVp9SegLvlAlt_Q], Eq(-81));
}
TEST(Vp9UncompressedHeaderParserTest, SegmentationWithDefaultPredProbs) {
const uint8_t kHeader[] = {0x90, 0x49, 0x83, 0x42, 0x80, 0x2e,
0x30, 0x0, 0xb0, 0x0, 0x37, 0xff,
0x06, 0x80, 0x0, 0x0, 0x0, 0x0};
std::optional<Vp9UncompressedHeader> frame_info =
ParseUncompressedVp9Header(kHeader);
ASSERT_TRUE(frame_info.has_value());
EXPECT_THAT(frame_info->segmentation_pred_prob,
Optional(ElementsAre(255, 255, 255)));
}
TEST(Vp9UncompressedHeaderParserTest, SegmentationWithSkipLevel) {
const uint8_t kHeader[] = {0x90, 0x49, 0x83, 0x42, 0x80, 0x2e, 0x30, 0x00,
0xb0, 0x00, 0x37, 0xff, 0x06, 0x80, 0x01, 0x08,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
std::optional<Vp9UncompressedHeader> frame_info =
ParseUncompressedVp9Header(kHeader);
ASSERT_TRUE(frame_info.has_value());
EXPECT_THAT(frame_info->segmentation_features[0][kVp9SegLvlSkip], Eq(1));
}
} // namespace vp9
} // namespace webrtc