1 files changed, 94 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/video_coding/utility/vp9_uncompressed_header_parser_unittest.cc b/third_party/libwebrtc/modules/video_coding/utility/vp9_uncompressed_header_parser_unittest.cc
new file mode 100644
index 0000000000..d8cc738e07
--- /dev/null
+++ b/third_party/libwebrtc/modules/video_coding/utility/vp9_uncompressed_header_parser_unittest.cc
@@ -0,0 +1,94 @@
+/*
+ *  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};
+
+  absl::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->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};
+  absl::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};
+  absl::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