ref: 742dbe2a6ae83d01deafa2eea0e838418a8c6d37
dir: /test/simple_encode_test.cc/
/* * Copyright (c) 2019 The WebM 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 <math.h> #include <memory> #include <vector> #include "third_party/googletest/src/include/gtest/gtest.h" #include "vp9/simple_encode.h" namespace vp9 { namespace { // TODO(angirbid): Find a better way to construct encode info const int w = 352; const int h = 288; const int frame_rate_num = 30; const int frame_rate_den = 1; const int target_bitrate = 1000; const int num_frames = 17; const char infile_path[] = "bus_352x288_420_f20_b8.yuv"; double GetBitrateInKbps(size_t bit_size, int num_frames, int frame_rate_num, int frame_rate_den) { return static_cast<double>(bit_size) / num_frames * frame_rate_num / frame_rate_den / 1000.0; } // Returns the number of unit in size of 4. // For example, if size is 7, return 2. int GetNumUnit4x4(int size) { return (size + 3) >> 2; } TEST(SimpleEncode, ComputeFirstPassStats) { SimpleEncode simple_encode(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); simple_encode.ComputeFirstPassStats(); std::vector<std::vector<double>> frame_stats = simple_encode.ObserveFirstPassStats(); EXPECT_EQ(frame_stats.size(), static_cast<size_t>(num_frames)); size_t data_num = frame_stats[0].size(); // Read ObserveFirstPassStats before changing FIRSTPASS_STATS. EXPECT_EQ(data_num, static_cast<size_t>(25)); for (size_t i = 0; i < frame_stats.size(); ++i) { EXPECT_EQ(frame_stats[i].size(), data_num); // FIRSTPASS_STATS's first element is frame EXPECT_EQ(frame_stats[i][0], i); // FIRSTPASS_STATS's last element is count, and the count is 1 for single // frame stats EXPECT_EQ(frame_stats[i][data_num - 1], 1); } } TEST(SimpleEncode, GetCodingFrameNum) { SimpleEncode simple_encode(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); simple_encode.ComputeFirstPassStats(); int num_coding_frames = simple_encode.GetCodingFrameNum(); EXPECT_EQ(num_coding_frames, 19); } TEST(SimpleEncode, EncodeFrame) { SimpleEncode simple_encode(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); simple_encode.ComputeFirstPassStats(); int num_coding_frames = simple_encode.GetCodingFrameNum(); EXPECT_GE(num_coding_frames, num_frames); simple_encode.StartEncode(); size_t total_data_bit_size = 0; int coded_show_frame_count = 0; int frame_coding_index = 0; while (coded_show_frame_count < num_frames) { const GroupOfPicture group_of_picture = simple_encode.ObserveGroupOfPicture(); const std::vector<EncodeFrameInfo> &encode_frame_list = group_of_picture.encode_frame_list; for (size_t group_index = 0; group_index < encode_frame_list.size(); ++group_index) { EncodeFrameResult encode_frame_result; simple_encode.EncodeFrame(&encode_frame_result); EXPECT_EQ(encode_frame_result.show_idx, encode_frame_list[group_index].show_idx); EXPECT_EQ(encode_frame_result.frame_type, encode_frame_list[group_index].frame_type); EXPECT_EQ(encode_frame_list[group_index].coding_index, frame_coding_index); EXPECT_GE(encode_frame_result.psnr, 34) << "The psnr is supposed to be greater than 34 given the " "target_bitrate 1000 kbps"; EXPECT_EQ(encode_frame_result.ref_frame_info, encode_frame_list[group_index].ref_frame_info); total_data_bit_size += encode_frame_result.coding_data_bit_size; ++frame_coding_index; } coded_show_frame_count += group_of_picture.show_frame_count; } const double bitrate = GetBitrateInKbps(total_data_bit_size, num_frames, frame_rate_num, frame_rate_den); const double off_target_threshold = 150; EXPECT_LE(fabs(target_bitrate - bitrate), off_target_threshold); simple_encode.EndEncode(); } TEST(SimpleEncode, EncodeFrameWithQuantizeIndex) { SimpleEncode simple_encode(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); simple_encode.ComputeFirstPassStats(); int num_coding_frames = simple_encode.GetCodingFrameNum(); simple_encode.StartEncode(); for (int i = 0; i < num_coding_frames; ++i) { const int assigned_quantize_index = 100 + i; EncodeFrameResult encode_frame_result; simple_encode.EncodeFrameWithQuantizeIndex(&encode_frame_result, assigned_quantize_index); EXPECT_EQ(encode_frame_result.quantize_index, assigned_quantize_index); } simple_encode.EndEncode(); } TEST(SimpleEncode, EncodeConsistencyTest) { std::vector<int> quantize_index_list; std::vector<uint64_t> ref_sse_list; std::vector<double> ref_psnr_list; std::vector<size_t> ref_bit_size_list; { // The first encode. SimpleEncode simple_encode(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); simple_encode.ComputeFirstPassStats(); const int num_coding_frames = simple_encode.GetCodingFrameNum(); simple_encode.StartEncode(); for (int i = 0; i < num_coding_frames; ++i) { EncodeFrameResult encode_frame_result; simple_encode.EncodeFrame(&encode_frame_result); quantize_index_list.push_back(encode_frame_result.quantize_index); ref_sse_list.push_back(encode_frame_result.sse); ref_psnr_list.push_back(encode_frame_result.psnr); ref_bit_size_list.push_back(encode_frame_result.coding_data_bit_size); } simple_encode.EndEncode(); } { // The second encode with quantize index got from the first encode. SimpleEncode simple_encode(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); simple_encode.ComputeFirstPassStats(); const int num_coding_frames = simple_encode.GetCodingFrameNum(); EXPECT_EQ(static_cast<size_t>(num_coding_frames), quantize_index_list.size()); simple_encode.StartEncode(); for (int i = 0; i < num_coding_frames; ++i) { EncodeFrameResult encode_frame_result; simple_encode.EncodeFrameWithQuantizeIndex(&encode_frame_result, quantize_index_list[i]); EXPECT_EQ(encode_frame_result.quantize_index, quantize_index_list[i]); EXPECT_EQ(encode_frame_result.sse, ref_sse_list[i]); EXPECT_DOUBLE_EQ(encode_frame_result.psnr, ref_psnr_list[i]); EXPECT_EQ(encode_frame_result.coding_data_bit_size, ref_bit_size_list[i]); } simple_encode.EndEncode(); } } // Test the information (partition info and motion vector info) stored in // encoder is the same between two encode runs. TEST(SimpleEncode, EncodeConsistencyTest2) { const int num_rows_4x4 = GetNumUnit4x4(w); const int num_cols_4x4 = GetNumUnit4x4(h); const int num_units_4x4 = num_rows_4x4 * num_cols_4x4; // The first encode. SimpleEncode simple_encode(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); simple_encode.ComputeFirstPassStats(); const int num_coding_frames = simple_encode.GetCodingFrameNum(); std::vector<PartitionInfo> partition_info_list(num_units_4x4 * num_coding_frames); std::vector<MotionVectorInfo> motion_vector_info_list(num_units_4x4 * num_coding_frames); simple_encode.StartEncode(); for (int i = 0; i < num_coding_frames; ++i) { EncodeFrameResult encode_frame_result; simple_encode.EncodeFrame(&encode_frame_result); for (int j = 0; j < num_rows_4x4 * num_cols_4x4; ++j) { partition_info_list[i * num_units_4x4 + j] = encode_frame_result.partition_info[j]; motion_vector_info_list[i * num_units_4x4 + j] = encode_frame_result.motion_vector_info[j]; } } simple_encode.EndEncode(); // The second encode. SimpleEncode simple_encode_2(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); simple_encode_2.ComputeFirstPassStats(); const int num_coding_frames_2 = simple_encode_2.GetCodingFrameNum(); simple_encode_2.StartEncode(); for (int i = 0; i < num_coding_frames_2; ++i) { EncodeFrameResult encode_frame_result; simple_encode_2.EncodeFrame(&encode_frame_result); for (int j = 0; j < num_rows_4x4 * num_cols_4x4; ++j) { EXPECT_EQ(encode_frame_result.partition_info[j].row, partition_info_list[i * num_units_4x4 + j].row); EXPECT_EQ(encode_frame_result.partition_info[j].column, partition_info_list[i * num_units_4x4 + j].column); EXPECT_EQ(encode_frame_result.partition_info[j].row_start, partition_info_list[i * num_units_4x4 + j].row_start); EXPECT_EQ(encode_frame_result.partition_info[j].column_start, partition_info_list[i * num_units_4x4 + j].column_start); EXPECT_EQ(encode_frame_result.partition_info[j].width, partition_info_list[i * num_units_4x4 + j].width); EXPECT_EQ(encode_frame_result.partition_info[j].height, partition_info_list[i * num_units_4x4 + j].height); EXPECT_EQ(encode_frame_result.motion_vector_info[j].mv_count, motion_vector_info_list[i * num_units_4x4 + j].mv_count); EXPECT_EQ(encode_frame_result.motion_vector_info[j].ref_frame[0], motion_vector_info_list[i * num_units_4x4 + j].ref_frame[0]); EXPECT_EQ(encode_frame_result.motion_vector_info[j].ref_frame[1], motion_vector_info_list[i * num_units_4x4 + j].ref_frame[1]); EXPECT_EQ(encode_frame_result.motion_vector_info[j].mv_row[0], motion_vector_info_list[i * num_units_4x4 + j].mv_row[0]); EXPECT_EQ(encode_frame_result.motion_vector_info[j].mv_column[0], motion_vector_info_list[i * num_units_4x4 + j].mv_column[0]); EXPECT_EQ(encode_frame_result.motion_vector_info[j].mv_row[1], motion_vector_info_list[i * num_units_4x4 + j].mv_row[1]); EXPECT_EQ(encode_frame_result.motion_vector_info[j].mv_column[1], motion_vector_info_list[i * num_units_4x4 + j].mv_column[1]); } } simple_encode_2.EndEncode(); } // Test the information stored in encoder is the same between two encode runs. TEST(SimpleEncode, EncodeConsistencyTest3) { std::vector<int> quantize_index_list; const int num_rows_4x4 = GetNumUnit4x4(w); const int num_cols_4x4 = GetNumUnit4x4(h); const int num_units_4x4 = num_rows_4x4 * num_cols_4x4; // The first encode. SimpleEncode simple_encode(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); simple_encode.ComputeFirstPassStats(); const int num_coding_frames = simple_encode.GetCodingFrameNum(); std::vector<PartitionInfo> partition_info_list(num_units_4x4 * num_coding_frames); simple_encode.StartEncode(); for (int i = 0; i < num_coding_frames; ++i) { EncodeFrameResult encode_frame_result; simple_encode.EncodeFrame(&encode_frame_result); quantize_index_list.push_back(encode_frame_result.quantize_index); for (int j = 0; j < num_rows_4x4 * num_cols_4x4; ++j) { partition_info_list[i * num_units_4x4 + j] = encode_frame_result.partition_info[j]; } } simple_encode.EndEncode(); // The second encode. SimpleEncode simple_encode_2(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); simple_encode_2.ComputeFirstPassStats(); const int num_coding_frames_2 = simple_encode_2.GetCodingFrameNum(); simple_encode_2.StartEncode(); for (int i = 0; i < num_coding_frames_2; ++i) { EncodeFrameResult encode_frame_result; simple_encode_2.EncodeFrameWithQuantizeIndex(&encode_frame_result, quantize_index_list[i]); for (int j = 0; j < num_rows_4x4 * num_cols_4x4; ++j) { EXPECT_EQ(encode_frame_result.partition_info[j].row, partition_info_list[i * num_units_4x4 + j].row); EXPECT_EQ(encode_frame_result.partition_info[j].column, partition_info_list[i * num_units_4x4 + j].column); EXPECT_EQ(encode_frame_result.partition_info[j].row_start, partition_info_list[i * num_units_4x4 + j].row_start); EXPECT_EQ(encode_frame_result.partition_info[j].column_start, partition_info_list[i * num_units_4x4 + j].column_start); EXPECT_EQ(encode_frame_result.partition_info[j].width, partition_info_list[i * num_units_4x4 + j].width); EXPECT_EQ(encode_frame_result.partition_info[j].height, partition_info_list[i * num_units_4x4 + j].height); } } simple_encode_2.EndEncode(); } // Encode with default VP9 decision first. // Get QPs and arf locations from the first encode. // Set external arfs and QPs for the second encode. // Expect to get matched results. TEST(SimpleEncode, EncodeConsistencyTestUseExternalArfs) { std::vector<int> quantize_index_list; std::vector<uint64_t> ref_sse_list; std::vector<double> ref_psnr_list; std::vector<size_t> ref_bit_size_list; std::vector<int> external_arf_indexes(num_frames, 0); { // The first encode. SimpleEncode simple_encode(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); simple_encode.ComputeFirstPassStats(); const int num_coding_frames = simple_encode.GetCodingFrameNum(); simple_encode.StartEncode(); for (int i = 0; i < num_coding_frames; ++i) { EncodeFrameResult encode_frame_result; simple_encode.EncodeFrame(&encode_frame_result); quantize_index_list.push_back(encode_frame_result.quantize_index); ref_sse_list.push_back(encode_frame_result.sse); ref_psnr_list.push_back(encode_frame_result.psnr); ref_bit_size_list.push_back(encode_frame_result.coding_data_bit_size); if (encode_frame_result.frame_type == kFrameTypeKey) { external_arf_indexes[encode_frame_result.show_idx] = 0; } else if (encode_frame_result.frame_type == kFrameTypeAltRef) { external_arf_indexes[encode_frame_result.show_idx] = 1; } else { // This has to be |= because we can't let overlay overwrites the // arf type for the same frame. external_arf_indexes[encode_frame_result.show_idx] |= 0; } } simple_encode.EndEncode(); } { // The second encode with quantize index got from the first encode. // The external arfs are the same as the first encode. SimpleEncode simple_encode(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); simple_encode.ComputeFirstPassStats(); simple_encode.SetExternalGroupOfPicture(external_arf_indexes); const int num_coding_frames = simple_encode.GetCodingFrameNum(); EXPECT_EQ(static_cast<size_t>(num_coding_frames), quantize_index_list.size()); simple_encode.StartEncode(); for (int i = 0; i < num_coding_frames; ++i) { EncodeFrameResult encode_frame_result; simple_encode.EncodeFrameWithQuantizeIndex(&encode_frame_result, quantize_index_list[i]); EXPECT_EQ(encode_frame_result.quantize_index, quantize_index_list[i]); EXPECT_EQ(encode_frame_result.sse, ref_sse_list[i]); EXPECT_DOUBLE_EQ(encode_frame_result.psnr, ref_psnr_list[i]); EXPECT_EQ(encode_frame_result.coding_data_bit_size, ref_bit_size_list[i]); } simple_encode.EndEncode(); } } TEST(SimpleEncode, GetEncodeFrameInfo) { // Makes sure that the encode_frame_info obtained from GetEncodeFrameInfo() // matches the counterpart in encode_frame_result obtained from EncodeFrame() SimpleEncode simple_encode(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); simple_encode.ComputeFirstPassStats(); const int num_coding_frames = simple_encode.GetCodingFrameNum(); simple_encode.StartEncode(); for (int i = 0; i < num_coding_frames; ++i) { EncodeFrameInfo encode_frame_info = simple_encode.GetNextEncodeFrameInfo(); EncodeFrameResult encode_frame_result; simple_encode.EncodeFrame(&encode_frame_result); EXPECT_EQ(encode_frame_info.show_idx, encode_frame_result.show_idx); EXPECT_EQ(encode_frame_info.frame_type, encode_frame_result.frame_type); } simple_encode.EndEncode(); } TEST(SimpleEncode, GetFramePixelCount) { SimpleEncode simple_encode(w, h, frame_rate_num, frame_rate_den, target_bitrate, num_frames, infile_path); EXPECT_EQ(simple_encode.GetFramePixelCount(), static_cast<uint64_t>(w * h * 3 / 2)); } } // namespace } // namespace vp9