|  | /* | 
|  | * Copyright (c) 2018, Alliance for Open Media. All rights reserved | 
|  | * | 
|  | * This source code is subject to the terms of the BSD 2 Clause License and | 
|  | * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License | 
|  | * was not distributed with this source code in the LICENSE file, you can | 
|  | * obtain it at www.aomedia.org/license/software. If the Alliance for Open | 
|  | * Media Patent License 1.0 was not distributed with this source code in the | 
|  | * PATENTS file, you can obtain it at www.aomedia.org/license/patent. | 
|  | */ | 
|  | #include <string.h> | 
|  |  | 
|  | #include "common/av1_config.h" | 
|  | #include "test/util.h" | 
|  | #include "third_party/googletest/src/googletest/include/gtest/gtest.h" | 
|  |  | 
|  | namespace { | 
|  |  | 
|  | // | 
|  | // Input buffers containing exactly one Sequence Header OBU. | 
|  | // | 
|  | // Each buffer is named according to the OBU storage format (Annex-B vs Low | 
|  | // Overhead Bitstream Format) and the type of Sequence Header OBU ("Full" | 
|  | // Sequence Header OBUs vs Sequence Header OBUs with the | 
|  | // reduced_still_image_flag set). | 
|  | // | 
|  | const uint8_t kAnnexBFullSequenceHeaderObu[] = { 0x0c, 0x08, 0x00, 0x00, 0x00, | 
|  | 0x04, 0x45, 0x7e, 0x3e, 0xff, | 
|  | 0xfc, 0xc0, 0x20 }; | 
|  | const uint8_t kAnnexBReducedStillImageSequenceHeaderObu[] = { | 
|  | 0x08, 0x08, 0x18, 0x22, 0x2b, 0xf1, 0xfe, 0xc0, 0x20 | 
|  | }; | 
|  |  | 
|  | const uint8_t kLobfFullSequenceHeaderObu[] = { 0x0a, 0x0b, 0x00, 0x00, 0x00, | 
|  | 0x04, 0x45, 0x7e, 0x3e, 0xff, | 
|  | 0xfc, 0xc0, 0x20 }; | 
|  |  | 
|  | const uint8_t kLobfReducedStillImageSequenceHeaderObu[] = { 0x0a, 0x07, 0x18, | 
|  | 0x22, 0x2b, 0xf1, | 
|  | 0xfe, 0xc0, 0x20 }; | 
|  |  | 
|  | const uint8_t kAv1cAllZero[] = { 0, 0, 0, 0 }; | 
|  |  | 
|  | // The size of AV1 config when no configOBUs are present at the end of the | 
|  | // configuration structure. | 
|  | const size_t kAv1cNoConfigObusSize = 4; | 
|  |  | 
|  | bool VerifyAv1c(const uint8_t *const obu_buffer, size_t obu_buffer_length, | 
|  | bool is_annexb) { | 
|  | Av1Config av1_config; | 
|  | memset(&av1_config, 0, sizeof(av1_config)); | 
|  | bool parse_ok = get_av1config_from_obu(obu_buffer, obu_buffer_length, | 
|  | is_annexb, &av1_config) == 0; | 
|  | if (parse_ok) { | 
|  | EXPECT_EQ(1, av1_config.marker); | 
|  | EXPECT_EQ(1, av1_config.version); | 
|  | EXPECT_EQ(0, av1_config.seq_profile); | 
|  | EXPECT_EQ(0, av1_config.seq_level_idx_0); | 
|  | EXPECT_EQ(0, av1_config.seq_tier_0); | 
|  | EXPECT_EQ(0, av1_config.high_bitdepth); | 
|  | EXPECT_EQ(0, av1_config.twelve_bit); | 
|  | EXPECT_EQ(0, av1_config.monochrome); | 
|  | EXPECT_EQ(1, av1_config.chroma_subsampling_x); | 
|  | EXPECT_EQ(1, av1_config.chroma_subsampling_y); | 
|  | EXPECT_EQ(0, av1_config.chroma_sample_position); | 
|  | EXPECT_EQ(0, av1_config.initial_presentation_delay_present); | 
|  | EXPECT_EQ(0, av1_config.initial_presentation_delay_minus_one); | 
|  | } | 
|  | return parse_ok && ::testing::Test::HasFailure() == false; | 
|  | } | 
|  |  | 
|  | TEST(Av1Config, ObuInvalidInputs) { | 
|  | Av1Config av1_config; | 
|  | memset(&av1_config, 0, sizeof(av1_config)); | 
|  | ASSERT_EQ(-1, get_av1config_from_obu(nullptr, 0, 0, nullptr)); | 
|  | ASSERT_EQ(-1, get_av1config_from_obu(&kLobfFullSequenceHeaderObu[0], 0, 0, | 
|  | nullptr)); | 
|  | ASSERT_EQ(-1, get_av1config_from_obu(&kLobfFullSequenceHeaderObu[0], | 
|  | sizeof(kLobfFullSequenceHeaderObu), 0, | 
|  | nullptr)); | 
|  | ASSERT_EQ(-1, get_av1config_from_obu( | 
|  | nullptr, sizeof(kLobfFullSequenceHeaderObu), 0, nullptr)); | 
|  | ASSERT_EQ(-1, get_av1config_from_obu(&kLobfFullSequenceHeaderObu[0], 0, 0, | 
|  | &av1_config)); | 
|  | } | 
|  |  | 
|  | TEST(Av1Config, ReadInvalidInputs) { | 
|  | Av1Config av1_config; | 
|  | memset(&av1_config, 0, sizeof(av1_config)); | 
|  | size_t bytes_read = 0; | 
|  | ASSERT_EQ(-1, read_av1config(nullptr, 0, nullptr, nullptr)); | 
|  | ASSERT_EQ(-1, read_av1config(nullptr, 4, nullptr, nullptr)); | 
|  | ASSERT_EQ(-1, read_av1config(&kAv1cAllZero[0], 0, nullptr, nullptr)); | 
|  | ASSERT_EQ(-1, read_av1config(&kAv1cAllZero[0], 4, &bytes_read, nullptr)); | 
|  | ASSERT_EQ(-1, read_av1config(nullptr, 4, &bytes_read, &av1_config)); | 
|  | } | 
|  |  | 
|  | TEST(Av1Config, WriteInvalidInputs) { | 
|  | Av1Config av1_config; | 
|  | memset(&av1_config, 0, sizeof(av1_config)); | 
|  | size_t bytes_written = 0; | 
|  | uint8_t av1c_buffer[4] = { 0 }; | 
|  | ASSERT_EQ(-1, write_av1config(nullptr, 0, nullptr, nullptr)); | 
|  | ASSERT_EQ(-1, write_av1config(&av1_config, 0, nullptr, nullptr)); | 
|  | ASSERT_EQ(-1, write_av1config(&av1_config, 0, &bytes_written, nullptr)); | 
|  |  | 
|  | ASSERT_EQ(-1, | 
|  | write_av1config(&av1_config, 0, &bytes_written, &av1c_buffer[0])); | 
|  | ASSERT_EQ(-1, write_av1config(&av1_config, 4, &bytes_written, nullptr)); | 
|  | } | 
|  |  | 
|  | TEST(Av1Config, GetAv1ConfigFromLobfObu) { | 
|  | // Test parsing of a Sequence Header OBU with the reduced_still_picture_header | 
|  | // unset-- aka a full Sequence Header OBU. | 
|  | ASSERT_TRUE(VerifyAv1c(kLobfFullSequenceHeaderObu, | 
|  | sizeof(kLobfFullSequenceHeaderObu), false)); | 
|  |  | 
|  | // Test parsing of a reduced still image Sequence Header OBU. | 
|  | ASSERT_TRUE(VerifyAv1c(kLobfReducedStillImageSequenceHeaderObu, | 
|  | sizeof(kLobfReducedStillImageSequenceHeaderObu), | 
|  | false)); | 
|  | } | 
|  |  | 
|  | TEST(Av1Config, GetAv1ConfigFromAnnexBObu) { | 
|  | // Test parsing of a Sequence Header OBU with the reduced_still_picture_header | 
|  | // unset-- aka a full Sequence Header OBU. | 
|  | ASSERT_TRUE(VerifyAv1c(kAnnexBFullSequenceHeaderObu, | 
|  | sizeof(kAnnexBFullSequenceHeaderObu), true)); | 
|  |  | 
|  | // Test parsing of a reduced still image Sequence Header OBU. | 
|  | ASSERT_TRUE(VerifyAv1c(kAnnexBReducedStillImageSequenceHeaderObu, | 
|  | sizeof(kAnnexBReducedStillImageSequenceHeaderObu), | 
|  | true)); | 
|  | } | 
|  |  | 
|  | TEST(Av1Config, ReadWriteConfig) { | 
|  | Av1Config av1_config; | 
|  | memset(&av1_config, 0, sizeof(av1_config)); | 
|  |  | 
|  | // Test writing out the AV1 config. | 
|  | size_t bytes_written = 0; | 
|  | uint8_t av1c_buffer[4] = { 0 }; | 
|  | ASSERT_EQ(0, write_av1config(&av1_config, sizeof(av1c_buffer), &bytes_written, | 
|  | &av1c_buffer[0])); | 
|  | ASSERT_EQ(kAv1cNoConfigObusSize, bytes_written); | 
|  | for (size_t i = 0; i < kAv1cNoConfigObusSize; ++i) { | 
|  | ASSERT_EQ(kAv1cAllZero[i], av1c_buffer[i]) | 
|  | << "Mismatch in output Av1Config at offset=" << i; | 
|  | } | 
|  |  | 
|  | // Test reading the AV1 config. | 
|  | size_t bytes_read = 0; | 
|  | ASSERT_EQ(0, read_av1config(&kAv1cAllZero[0], sizeof(kAv1cAllZero), | 
|  | &bytes_read, &av1_config)); | 
|  | ASSERT_EQ(kAv1cNoConfigObusSize, bytes_read); | 
|  | ASSERT_EQ(0, write_av1config(&av1_config, sizeof(av1c_buffer), &bytes_written, | 
|  | &av1c_buffer[0])); | 
|  | for (size_t i = 0; i < kAv1cNoConfigObusSize; ++i) { | 
|  | ASSERT_EQ(kAv1cAllZero[i], av1c_buffer[i]) | 
|  | << "Mismatch in output Av1Config at offset=" << i; | 
|  | } | 
|  | } | 
|  |  | 
|  | }  // namespace |