blob: 89f441c51e566a4c4b003b3a807036e0d63d255f [file] [log] [blame]
// Copyright 2014 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 <limits>
#include <memory>
#include "base/command_line.h"
#include "base/files/memory_mapped_file.h"
#include "base/logging.h"
#include "base/memory/ptr_util.h"
#include "base/optional.h"
#include "base/string_number_conversions.h"
#include "cobalt/media/base/test_data_util.h"
#include "cobalt/media/filters/h264_parser.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/rect.h"
#include "ui/gfx/size.h"
namespace cobalt {
namespace media {
class H264SPSTest : public ::testing::Test {
public:
// An exact clone of an SPS from Big Buck Bunny 480p.
std::unique_ptr<H264SPS> MakeSPS_BBB480p() {
std::unique_ptr<H264SPS> sps = base::MakeUnique<H264SPS>();
sps->profile_idc = 100;
sps->level_idc = 30;
sps->chroma_format_idc = 1;
sps->log2_max_pic_order_cnt_lsb_minus4 = 2;
sps->max_num_ref_frames = 5;
sps->pic_width_in_mbs_minus1 = 52;
sps->pic_height_in_map_units_minus1 = 29;
sps->frame_mbs_only_flag = true;
sps->direct_8x8_inference_flag = true;
sps->vui_parameters_present_flag = true;
sps->timing_info_present_flag = true;
sps->num_units_in_tick = 1;
sps->time_scale = 48;
sps->fixed_frame_rate_flag = true;
sps->bitstream_restriction_flag = true;
// These next three fields are not part of our SPS struct yet.
// sps->motion_vectors_over_pic_boundaries_flag = true;
// sps->log2_max_mv_length_horizontal = 10;
// sps->log2_max_mv_length_vertical = 10;
sps->max_num_reorder_frames = 2;
sps->max_dec_frame_buffering = 5;
// Computed field, matches |chroma_format_idc| in this case.
// TODO(sandersd): Extract that computation from the parsing step.
sps->chroma_array_type = 1;
return sps;
}
};
TEST_F(H264SPSTest, GetCodedSize) {
std::unique_ptr<H264SPS> sps = MakeSPS_BBB480p();
EXPECT_EQ(gfx::Size(848, 480), sps->GetCodedSize());
// Overflow.
sps->pic_width_in_mbs_minus1 = std::numeric_limits<int>::max();
EXPECT_EQ(base::nullopt, sps->GetCodedSize());
}
TEST_F(H264SPSTest, GetVisibleRect) {
std::unique_ptr<H264SPS> sps = MakeSPS_BBB480p();
EXPECT_EQ(gfx::Rect(0, 0, 848, 480), sps->GetVisibleRect());
// Add some cropping.
sps->frame_cropping_flag = true;
sps->frame_crop_left_offset = 1;
sps->frame_crop_right_offset = 2;
sps->frame_crop_top_offset = 3;
sps->frame_crop_bottom_offset = 4;
EXPECT_EQ(gfx::Rect(2, 6, 848 - 6, 480 - 14), sps->GetVisibleRect());
// Not quite invalid.
sps->frame_crop_left_offset = 422;
sps->frame_crop_right_offset = 1;
sps->frame_crop_top_offset = 0;
sps->frame_crop_bottom_offset = 0;
EXPECT_EQ(gfx::Rect(844, 0, 2, 480), sps->GetVisibleRect());
// Invalid crop.
sps->frame_crop_left_offset = 423;
sps->frame_crop_right_offset = 1;
sps->frame_crop_top_offset = 0;
sps->frame_crop_bottom_offset = 0;
EXPECT_EQ(base::nullopt, sps->GetVisibleRect());
// Overflow.
sps->frame_crop_left_offset = std::numeric_limits<int>::max() / 2 + 1;
sps->frame_crop_right_offset = 0;
sps->frame_crop_top_offset = 0;
sps->frame_crop_bottom_offset = 0;
EXPECT_EQ(base::nullopt, sps->GetVisibleRect());
}
TEST(H264ParserTest, StreamFileParsing) {
base::FilePath file_path = GetTestDataFilePath("test-25fps.h264");
// Number of NALUs in the test stream to be parsed.
int num_nalus = 759;
base::MemoryMappedFile stream;
ASSERT_TRUE(stream.Initialize(file_path)) << "Couldn't open stream file: "
<< file_path.MaybeAsASCII();
H264Parser parser;
parser.SetStream(stream.data(), stream.length());
// Parse until the end of stream/unsupported stream/error in stream is found.
int num_parsed_nalus = 0;
while (true) {
media::H264SliceHeader shdr;
media::H264SEIMessage sei_msg;
H264NALU nalu;
H264Parser::Result res = parser.AdvanceToNextNALU(&nalu);
if (res == H264Parser::kEOStream) {
DVLOG(1) << "Number of successfully parsed NALUs before EOS: "
<< num_parsed_nalus;
ASSERT_EQ(num_nalus, num_parsed_nalus);
return;
}
ASSERT_EQ(res, H264Parser::kOk);
++num_parsed_nalus;
int id;
switch (nalu.nal_unit_type) {
case H264NALU::kIDRSlice:
case H264NALU::kNonIDRSlice:
ASSERT_EQ(parser.ParseSliceHeader(nalu, &shdr), H264Parser::kOk);
break;
case H264NALU::kSPS:
ASSERT_EQ(parser.ParseSPS(&id), H264Parser::kOk);
break;
case H264NALU::kPPS:
ASSERT_EQ(parser.ParsePPS(&id), H264Parser::kOk);
break;
case H264NALU::kSEIMessage:
ASSERT_EQ(parser.ParseSEI(&sei_msg), H264Parser::kOk);
break;
default:
// Skip unsupported NALU.
DVLOG(4) << "Skipping unsupported NALU";
break;
}
}
}
} // namespace media
} // namespace cobalt