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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stdint.h>
#include "base/files/memory_mapped_file.h"
#include "base/logging.h"
#include "media/base/test_data_util.h"
#include "media/filters/ivf_parser.h"
#include "media/filters/vp9_parser.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
class Vp9ParserTest : public ::testing::Test {
protected:
void SetUp() override {
base::FilePath file_path = GetTestDataFilePath("test-25fps.vp9");
stream_.reset(new base::MemoryMappedFile());
ASSERT_TRUE(stream_->Initialize(file_path)) << "Couldn't open stream file: "
<< file_path.MaybeAsASCII();
IvfFileHeader ivf_file_header;
ASSERT_TRUE(ivf_parser_.Initialize(stream_->data(), stream_->length(),
&ivf_file_header));
ASSERT_EQ(ivf_file_header.fourcc, 0x30395056u); // VP90
}
void TearDown() override { stream_.reset(); }
bool ParseNextFrame(struct Vp9FrameHeader* frame_hdr);
const Vp9Segmentation& GetSegmentation() const {
return vp9_parser_.GetSegmentation();
}
const Vp9LoopFilter& GetLoopFilter() const {
return vp9_parser_.GetLoopFilter();
}
IvfParser ivf_parser_;
scoped_ptr<base::MemoryMappedFile> stream_;
Vp9Parser vp9_parser_;
};
bool Vp9ParserTest::ParseNextFrame(Vp9FrameHeader* fhdr) {
while (1) {
Vp9Parser::Result res = vp9_parser_.ParseNextFrame(fhdr);
if (res == Vp9Parser::kEOStream) {
IvfFrameHeader ivf_frame_header;
const uint8_t* ivf_payload;
if (!ivf_parser_.ParseNextFrame(&ivf_frame_header, &ivf_payload))
return false;
vp9_parser_.SetStream(ivf_payload, ivf_frame_header.frame_size);
continue;
}
return res == Vp9Parser::kOk;
}
}
TEST_F(Vp9ParserTest, StreamFileParsing) {
// Number of frames in the test stream to be parsed.
const int num_frames = 250;
int num_parsed_frames = 0;
while (num_parsed_frames < num_frames) {
Vp9FrameHeader fhdr;
if (!ParseNextFrame(&fhdr))
break;
++num_parsed_frames;
}
DVLOG(1) << "Number of successfully parsed frames before EOS: "
<< num_parsed_frames;
EXPECT_EQ(num_frames, num_parsed_frames);
}
TEST_F(Vp9ParserTest, VerifyFirstFrame) {
Vp9FrameHeader fhdr;
ASSERT_TRUE(ParseNextFrame(&fhdr));
EXPECT_EQ(0, fhdr.profile);
EXPECT_FALSE(fhdr.show_existing_frame);
EXPECT_EQ(Vp9FrameHeader::KEYFRAME, fhdr.frame_type);
EXPECT_TRUE(fhdr.show_frame);
EXPECT_FALSE(fhdr.error_resilient_mode);
EXPECT_EQ(8, fhdr.bit_depth);
EXPECT_EQ(Vp9ColorSpace::UNKNOWN, fhdr.color_space);
EXPECT_FALSE(fhdr.yuv_range);
EXPECT_EQ(1, fhdr.subsampling_x);
EXPECT_EQ(1, fhdr.subsampling_y);
EXPECT_EQ(320u, fhdr.width);
EXPECT_EQ(240u, fhdr.height);
EXPECT_EQ(320u, fhdr.display_width);
EXPECT_EQ(240u, fhdr.display_height);
EXPECT_TRUE(fhdr.refresh_frame_context);
EXPECT_TRUE(fhdr.frame_parallel_decoding_mode);
EXPECT_EQ(0, fhdr.frame_context_idx);
const Vp9LoopFilter& lf = GetLoopFilter();
EXPECT_EQ(9, lf.filter_level);
EXPECT_EQ(0, lf.sharpness_level);
EXPECT_TRUE(lf.mode_ref_delta_enabled);
EXPECT_TRUE(lf.mode_ref_delta_update);
EXPECT_TRUE(lf.update_ref_deltas[0]);
EXPECT_EQ(1, lf.ref_deltas[0]);
EXPECT_EQ(-1, lf.ref_deltas[2]);
EXPECT_EQ(-1, lf.ref_deltas[3]);
const Vp9QuantizationParams& qp = fhdr.quant_params;
EXPECT_EQ(65, qp.base_qindex);
EXPECT_FALSE(qp.y_dc_delta);
EXPECT_FALSE(qp.uv_dc_delta);
EXPECT_FALSE(qp.uv_ac_delta);
EXPECT_FALSE(qp.IsLossless());
const Vp9Segmentation& seg = GetSegmentation();
EXPECT_FALSE(seg.enabled);
EXPECT_EQ(0, fhdr.log2_tile_cols);
EXPECT_EQ(0, fhdr.log2_tile_rows);
EXPECT_EQ(120u, fhdr.first_partition_size);
EXPECT_EQ(18u, fhdr.uncompressed_header_size);
}
TEST_F(Vp9ParserTest, VerifyInterFrame) {
Vp9FrameHeader fhdr;
// To verify the second frame.
for (int i = 0; i < 2; i++)
ASSERT_TRUE(ParseNextFrame(&fhdr));
EXPECT_EQ(Vp9FrameHeader::INTERFRAME, fhdr.frame_type);
EXPECT_FALSE(fhdr.show_frame);
EXPECT_FALSE(fhdr.intra_only);
EXPECT_FALSE(fhdr.reset_context);
EXPECT_TRUE(fhdr.RefreshFlag(2));
EXPECT_EQ(0, fhdr.frame_refs[0]);
EXPECT_EQ(1, fhdr.frame_refs[1]);
EXPECT_EQ(2, fhdr.frame_refs[2]);
EXPECT_TRUE(fhdr.allow_high_precision_mv);
EXPECT_EQ(Vp9InterpFilter::EIGHTTAP, fhdr.interp_filter);
EXPECT_EQ(48u, fhdr.first_partition_size);
EXPECT_EQ(11u, fhdr.uncompressed_header_size);
}
} // namespace media
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