graphics/mapper/stable-c/implutils/impltests.cpp - third_party/android/platform/hardware/interfaces - Git at Google

 /*
  * Copyright (C) 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #include <gtest/gtest.h>

 #include <android/hardware/graphics/mapper/utils/IMapperMetadataTypes.h>
 #include <android/hardware/graphics/mapper/utils/IMapperProvider.h>
 #include <vector>

 using namespace ::android::hardware::graphics::mapper;
 using namespace ::aidl::android::hardware::graphics::common;

 // These tests are primarily interested in hitting all the different *types* that can be
 // serialized/deserialized than in exhaustively testing all the StandardMetadataTypes.
 // Exhaustive testing of the actual metadata types is relegated for IMapper's VTS suite
 // where meaning & correctness of values are more narrowly defined (eg, read-only values)

 TEST(Metadata, setGetBufferId) {
     using BufferId = StandardMetadata<StandardMetadataType::BUFFER_ID>::value;

     std::vector<char> buffer;
     buffer.resize(12, 0);
     *reinterpret_cast<int64_t*>(buffer.data()) = 42;

     EXPECT_EQ(8, BufferId::encode(18, buffer.data(), 0));
     EXPECT_EQ(42, *reinterpret_cast<int64_t*>(buffer.data()));
     EXPECT_EQ(8, BufferId::encode(18, buffer.data(), buffer.size()));
     EXPECT_EQ(18, *reinterpret_cast<int64_t*>(buffer.data()));
     EXPECT_FALSE(BufferId::decode(buffer.data(), 0));
     auto read = BufferId::decode(buffer.data(), buffer.size());
     EXPECT_TRUE(read.has_value());
     EXPECT_EQ(18, read.value_or(0));
 }

 TEST(Metadata, setGetDataspace) {
     using DataspaceValue = StandardMetadata<StandardMetadataType::DATASPACE>::value;
     using intType = std::underlying_type_t<Dataspace>;
     std::vector<char> buffer;
     buffer.resize(12, 0);

     EXPECT_EQ(4, DataspaceValue::encode(Dataspace::BT2020, buffer.data(), 0));
     EXPECT_EQ(0, *reinterpret_cast<intType*>(buffer.data()));
     EXPECT_EQ(4, DataspaceValue::encode(Dataspace::BT2020, buffer.data(), buffer.size()));
     EXPECT_EQ(static_cast<intType>(Dataspace::BT2020), *reinterpret_cast<intType*>(buffer.data()));
     EXPECT_FALSE(DataspaceValue::decode(buffer.data(), 0));
     auto read = DataspaceValue::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
     EXPECT_EQ(Dataspace::BT2020, *read);
 }

 TEST(Metadata, setGetValidName) {
     using NameValue = StandardMetadata<StandardMetadataType::NAME>::value;

     std::vector<char> buffer;
     buffer.resize(100, 'a');
     buffer[buffer.size() - 1] = '\0';

     // len("Hello") + sizeof(int64)
     constexpr int expectedSize = 5 + sizeof(int64_t);
     EXPECT_EQ(expectedSize, NameValue::encode("Hello", buffer.data(), buffer.size()));
     EXPECT_EQ(5, *reinterpret_cast<int64_t*>(buffer.data()));
     // Verify didn't write past the end of the desired size
     EXPECT_EQ('a', buffer[expectedSize]);

     auto readValue = NameValue::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(readValue.has_value());
     EXPECT_EQ(5, readValue->length());
     EXPECT_EQ("Hello", *readValue);
 }

 TEST(Metadata, setGetInvalidName) {
     using NameValue = StandardMetadata<StandardMetadataType::NAME>::value;

     std::vector<char> buffer;
     buffer.resize(12, 'a');
     buffer[buffer.size() - 1] = '\0';

     // len("This is a long string") + sizeof(int64)
     constexpr int expectedSize = 21 + sizeof(int64_t);
     EXPECT_EQ(expectedSize,
               NameValue::encode("This is a long string", buffer.data(), buffer.size()));
     EXPECT_EQ(21, *reinterpret_cast<int64_t*>(buffer.data()));
     // Verify didn't write the too-long string
     EXPECT_EQ('a', buffer[9]);
     EXPECT_EQ('\0', buffer[buffer.size() - 1]);

     auto readValue = NameValue::decode(buffer.data(), buffer.size());
     EXPECT_FALSE(readValue.has_value());
     readValue = NameValue::decode(buffer.data(), 0);
     ASSERT_FALSE(readValue.has_value());
 }

 TEST(Metadata, wouldOverflowName) {
     using NameValue = StandardMetadata<StandardMetadataType::NAME>::value;
     std::vector<char> buffer(100, 0);

     // int_max + sizeof(int64) overflows int32
     std::string_view bad_string{"badbeef", std::numeric_limits<int32_t>::max()};
     EXPECT_EQ(-AIMAPPER_ERROR_BAD_VALUE,
               NameValue::encode(bad_string, buffer.data(), buffer.size()));

     // check barely overflows
     bad_string = std::string_view{"badbeef", std::numeric_limits<int32_t>::max() - 7};
     EXPECT_EQ(-AIMAPPER_ERROR_BAD_VALUE,
               NameValue::encode(bad_string, buffer.data(), buffer.size()));
 }

 TEST(Metadata, setGetCompression) {
     using CompressionValue = StandardMetadata<StandardMetadataType::COMPRESSION>::value;
     ExtendableType myCompression{"bestest_compression_ever", 42};
     std::vector<char> buffer(100, '\0');
     const int expectedSize = myCompression.name.length() + sizeof(int64_t) + sizeof(int64_t);
     EXPECT_EQ(expectedSize, CompressionValue::encode(myCompression, buffer.data(), 0));
     EXPECT_EQ(0, buffer[0]);
     EXPECT_EQ(expectedSize, CompressionValue::encode(myCompression, buffer.data(), buffer.size()));
     EXPECT_EQ(myCompression.name.length(), *reinterpret_cast<int64_t*>(buffer.data()));
     EXPECT_FALSE(CompressionValue::decode(buffer.data(), 0).has_value());
     auto read = CompressionValue::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
     EXPECT_EQ(myCompression, read.value());
 }

 TEST(Metadata, setGetPlaneLayout) {
     using PlaneLayoutValue = StandardMetadata<StandardMetadataType::PLANE_LAYOUTS>::value;
     PlaneLayout myPlaneLayout;
     myPlaneLayout.offsetInBytes = 10;
     myPlaneLayout.sampleIncrementInBits = 11;
     myPlaneLayout.strideInBytes = 12;
     myPlaneLayout.widthInSamples = 13;
     myPlaneLayout.heightInSamples = 14;
     myPlaneLayout.totalSizeInBytes = 15;
     myPlaneLayout.horizontalSubsampling = 16;
     myPlaneLayout.verticalSubsampling = 17;

     myPlaneLayout.components.resize(3);
     for (int i = 0; i < myPlaneLayout.components.size(); i++) {
         auto& it = myPlaneLayout.components[i];
         it.type = ExtendableType{"Plane ID", 40 + i};
         it.offsetInBits = 20 + i;
         it.sizeInBits = 30 + i;
     }

     std::vector<PlaneLayout> layouts{myPlaneLayout, PlaneLayout{}};

     std::vector<char> buffer(5000, '\0');
     constexpr int componentSize = 8 + (4 * sizeof(int64_t));
     constexpr int firstLayoutSize = (8 + 1) * sizeof(int64_t) + (3 * componentSize);
     constexpr int secondLayoutSize = (8 + 1) * sizeof(int64_t);
     constexpr int expectedSize = firstLayoutSize + secondLayoutSize + sizeof(int64_t);
     EXPECT_EQ(expectedSize, PlaneLayoutValue::encode(layouts, buffer.data(), 0));
     EXPECT_EQ(0, buffer[0]);
     EXPECT_EQ(expectedSize, PlaneLayoutValue::encode(layouts, buffer.data(), buffer.size()));
     EXPECT_EQ(3, reinterpret_cast<int64_t*>(buffer.data())[1]);
     EXPECT_EQ(8, reinterpret_cast<int64_t*>(buffer.data())[2]);
     EXPECT_EQ(40, reinterpret_cast<int64_t*>(buffer.data())[4]);
     EXPECT_EQ(31, reinterpret_cast<int64_t*>(buffer.data())[11]);
     EXPECT_EQ(22, reinterpret_cast<int64_t*>(buffer.data())[15]);
     EXPECT_EQ(10, reinterpret_cast<int64_t*>(buffer.data())[17]);
     EXPECT_EQ(11, reinterpret_cast<int64_t*>(buffer.data())[18]);
     EXPECT_FALSE(PlaneLayoutValue::decode(buffer.data(), 0).has_value());
     auto read = PlaneLayoutValue::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
     EXPECT_EQ(layouts, *read);
 }

 TEST(Metadata, setGetRects) {
     using RectsValue = StandardMetadata<StandardMetadataType::CROP>::value;
     std::vector<uint8_t> buffer(500, 0);
     std::vector<Rect> cropRects{2};
     cropRects[0] = Rect{10, 11, 12, 13};
     cropRects[1] = Rect{20, 21, 22, 23};

     constexpr int expectedSize = sizeof(int64_t) + (8 * sizeof(int32_t));
     EXPECT_EQ(expectedSize, RectsValue::encode(cropRects, buffer.data(), buffer.size()));
     EXPECT_EQ(2, reinterpret_cast<int64_t*>(buffer.data())[0]);
     EXPECT_EQ(10, reinterpret_cast<int32_t*>(buffer.data())[2]);
     auto read = RectsValue::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
     EXPECT_EQ(cropRects.size(), read->size());
     EXPECT_EQ(cropRects, *read);
 }

 TEST(Metadata, setGetSmpte2086) {
     using Smpte2086Value = StandardMetadata<StandardMetadataType::SMPTE2086>::value;
     Smpte2086 source;
     source.minLuminance = 12.335f;
     source.maxLuminance = 452.889f;
     source.whitePoint = XyColor{-6.f, -9.f};
     source.primaryRed = XyColor{.1f, .2f};
     source.primaryGreen = XyColor{.3f, .4f};
     source.primaryBlue = XyColor{.5f, .6f};

     constexpr int expectedSize = 10 * sizeof(float);
     std::vector<uint8_t> buffer(500, 0);
     EXPECT_EQ(expectedSize, Smpte2086Value::encode(source, buffer.data(), buffer.size()));
     auto read = Smpte2086Value::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
     ASSERT_TRUE(read->has_value());
     EXPECT_EQ(source, read->value());

     // A valid encoding of a nullopt
     read = Smpte2086Value::decode(nullptr, 0);
     ASSERT_TRUE(read.has_value());
     EXPECT_FALSE(read->has_value());
 }

 TEST(Metadata, setGetCta861_3) {
     using Cta861_3Value = StandardMetadata<StandardMetadataType::CTA861_3>::value;
     Cta861_3 source;
     source.maxFrameAverageLightLevel = 244.55f;
     source.maxContentLightLevel = 202.202f;

     constexpr int expectedSize = 2 * sizeof(float);
     std::vector<uint8_t> buffer(500, 0);
     EXPECT_EQ(expectedSize, Cta861_3Value::encode(source, buffer.data(), buffer.size()));
     auto read = Cta861_3Value::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
     ASSERT_TRUE(read->has_value());
     EXPECT_EQ(source, read->value());

     // A valid encoding of a nullopt
     read = Cta861_3Value::decode(nullptr, 0);
     ASSERT_TRUE(read.has_value());
     EXPECT_FALSE(read->has_value());
 }

 TEST(Metadata, setGetSmpte2094_10) {
     using SMPTE2094_10Value = StandardMetadata<StandardMetadataType::SMPTE2094_10>::value;

     std::vector<uint8_t> buffer(500, 0);
     EXPECT_EQ(0, SMPTE2094_10Value::encode(std::nullopt, buffer.data(), buffer.size()));
     auto read = SMPTE2094_10Value::decode(buffer.data(), 0);
     ASSERT_TRUE(read.has_value());
     EXPECT_FALSE(read->has_value());

     const std::vector<uint8_t> emptyBuffer;
     EXPECT_EQ(sizeof(int64_t),
               SMPTE2094_10Value::encode(emptyBuffer, buffer.data(), buffer.size()));
     read = SMPTE2094_10Value::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
     ASSERT_TRUE(read->has_value());
     EXPECT_EQ(0, read->value().size());

     const std::vector<uint8_t> simpleBuffer{0, 1, 2, 3, 4, 5};
     EXPECT_EQ(sizeof(int64_t) + 6,
               SMPTE2094_10Value::encode(simpleBuffer, buffer.data(), buffer.size()));
     read = SMPTE2094_10Value::decode(buffer.data(), buffer.size());
     ASSERT_TRUE(read.has_value());
     ASSERT_TRUE(read->has_value());
     EXPECT_EQ(6, read->value().size());
     EXPECT_EQ(simpleBuffer, read->value());
 }

 TEST(MetadataProvider, bufferId) {
     using BufferId = StandardMetadata<StandardMetadataType::BUFFER_ID>::value;
     std::vector<uint8_t> buffer(500, 0);
     int result = provideStandardMetadata(StandardMetadataType::BUFFER_ID, buffer.data(),
                                          buffer.size(), []<StandardMetadataType T>(auto&& provide) {
                                              if constexpr (T == StandardMetadataType::BUFFER_ID) {
                                                  return provide(42);
                                              }
                                              return 0;
                                          });

     EXPECT_EQ(8, result);
     auto read = BufferId::decode(buffer.data(), buffer.size());
     EXPECT_EQ(42, read.value_or(0));
 }

 TEST(MetadataProvider, allJumpsWork) {
     const auto& values = ndk::internal::enum_values<StandardMetadataType>;
     auto get = [](StandardMetadataType type) -> int {
         return provideStandardMetadata(type, nullptr, 0, []<StandardMetadataType T>(auto&&) {
             return static_cast<int>(T) + 100;
         });
     };

     for (auto& type : values) {
         const int expected = type == StandardMetadataType::INVALID ? -AIMAPPER_ERROR_UNSUPPORTED
                                                                    : static_cast<int>(type) + 100;
         EXPECT_EQ(expected, get(type));
     }
 }

 TEST(MetadataProvider, invalid) {
     int result = provideStandardMetadata(StandardMetadataType::INVALID, nullptr, 0,
                                          []<StandardMetadataType T>(auto&&) { return 10; });

     EXPECT_EQ(-AIMAPPER_ERROR_UNSUPPORTED, result);
 }

 TEST(MetadataProvider, outOfBounds) {
     int result = provideStandardMetadata(static_cast<StandardMetadataType>(-1), nullptr, 0,
                                          []<StandardMetadataType T>(auto&&) { return 10; });
     EXPECT_EQ(-AIMAPPER_ERROR_UNSUPPORTED, result) << "-1 should have resulted in UNSUPPORTED";

     result = provideStandardMetadata(static_cast<StandardMetadataType>(100), nullptr, 0,
                                      []<StandardMetadataType T>(auto&&) { return 10; });
     EXPECT_EQ(-AIMAPPER_ERROR_UNSUPPORTED, result)
             << "100 (out of range) should have resulted in UNSUPPORTED";
 }
	/*
	* Copyright (C) 2022 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#include <gtest/gtest.h>

	#include <android/hardware/graphics/mapper/utils/IMapperMetadataTypes.h>
	#include <android/hardware/graphics/mapper/utils/IMapperProvider.h>
	#include <vector>

	using namespace ::android::hardware::graphics::mapper;
	using namespace ::aidl::android::hardware::graphics::common;

	// These tests are primarily interested in hitting all the different types that can be
	// serialized/deserialized than in exhaustively testing all the StandardMetadataTypes.
	// Exhaustive testing of the actual metadata types is relegated for IMapper's VTS suite
	// where meaning & correctness of values are more narrowly defined (eg, read-only values)

	TEST(Metadata, setGetBufferId) {
	using BufferId = StandardMetadata<StandardMetadataType::BUFFER_ID>::value;

	std::vector<char> buffer;
	buffer.resize(12, 0);
	reinterpret_cast<int64_t>(buffer.data()) = 42;

	EXPECT_EQ(8, BufferId::encode(18, buffer.data(), 0));
	EXPECT_EQ(42, reinterpret_cast<int64_t>(buffer.data()));
	EXPECT_EQ(8, BufferId::encode(18, buffer.data(), buffer.size()));
	EXPECT_EQ(18, reinterpret_cast<int64_t>(buffer.data()));
	EXPECT_FALSE(BufferId::decode(buffer.data(), 0));
	auto read = BufferId::decode(buffer.data(), buffer.size());
	EXPECT_TRUE(read.has_value());
	EXPECT_EQ(18, read.value_or(0));
	}

	TEST(Metadata, setGetDataspace) {
	using DataspaceValue = StandardMetadata<StandardMetadataType::DATASPACE>::value;
	using intType = std::underlying_type_t<Dataspace>;
	std::vector<char> buffer;
	buffer.resize(12, 0);

	EXPECT_EQ(4, DataspaceValue::encode(Dataspace::BT2020, buffer.data(), 0));
	EXPECT_EQ(0, reinterpret_cast<intType>(buffer.data()));
	EXPECT_EQ(4, DataspaceValue::encode(Dataspace::BT2020, buffer.data(), buffer.size()));
	EXPECT_EQ(static_cast<intType>(Dataspace::BT2020), reinterpret_cast<intType>(buffer.data()));
	EXPECT_FALSE(DataspaceValue::decode(buffer.data(), 0));
	auto read = DataspaceValue::decode(buffer.data(), buffer.size());
	ASSERT_TRUE(read.has_value());
	EXPECT_EQ(Dataspace::BT2020, *read);
	}

	TEST(Metadata, setGetValidName) {
	using NameValue = StandardMetadata<StandardMetadataType::NAME>::value;

	std::vector<char> buffer;
	buffer.resize(100, 'a');
	buffer[buffer.size() - 1] = '\0';

	// len("Hello") + sizeof(int64)
	constexpr int expectedSize = 5 + sizeof(int64_t);
	EXPECT_EQ(expectedSize, NameValue::encode("Hello", buffer.data(), buffer.size()));
	EXPECT_EQ(5, reinterpret_cast<int64_t>(buffer.data()));
	// Verify didn't write past the end of the desired size
	EXPECT_EQ('a', buffer[expectedSize]);

	auto readValue = NameValue::decode(buffer.data(), buffer.size());
	ASSERT_TRUE(readValue.has_value());
	EXPECT_EQ(5, readValue->length());
	EXPECT_EQ("Hello", *readValue);
	}

	TEST(Metadata, setGetInvalidName) {
	using NameValue = StandardMetadata<StandardMetadataType::NAME>::value;

	std::vector<char> buffer;
	buffer.resize(12, 'a');
	buffer[buffer.size() - 1] = '\0';

	// len("This is a long string") + sizeof(int64)
	constexpr int expectedSize = 21 + sizeof(int64_t);
	EXPECT_EQ(expectedSize,
	NameValue::encode("This is a long string", buffer.data(), buffer.size()));
	EXPECT_EQ(21, reinterpret_cast<int64_t>(buffer.data()));
	// Verify didn't write the too-long string
	EXPECT_EQ('a', buffer[9]);
	EXPECT_EQ('\0', buffer[buffer.size() - 1]);

	auto readValue = NameValue::decode(buffer.data(), buffer.size());
	EXPECT_FALSE(readValue.has_value());
	readValue = NameValue::decode(buffer.data(), 0);
	ASSERT_FALSE(readValue.has_value());
	}

	TEST(Metadata, wouldOverflowName) {
	using NameValue = StandardMetadata<StandardMetadataType::NAME>::value;
	std::vector<char> buffer(100, 0);

	// int_max + sizeof(int64) overflows int32
	std::string_view bad_string{"badbeef", std::numeric_limits<int32_t>::max()};
	EXPECT_EQ(-AIMAPPER_ERROR_BAD_VALUE,
	NameValue::encode(bad_string, buffer.data(), buffer.size()));

	// check barely overflows
	bad_string = std::string_view{"badbeef", std::numeric_limits<int32_t>::max() - 7};
	EXPECT_EQ(-AIMAPPER_ERROR_BAD_VALUE,
	NameValue::encode(bad_string, buffer.data(), buffer.size()));
	}

	TEST(Metadata, setGetCompression) {
	using CompressionValue = StandardMetadata<StandardMetadataType::COMPRESSION>::value;
	ExtendableType myCompression{"bestest_compression_ever", 42};
	std::vector<char> buffer(100, '\0');
	const int expectedSize = myCompression.name.length() + sizeof(int64_t) + sizeof(int64_t);
	EXPECT_EQ(expectedSize, CompressionValue::encode(myCompression, buffer.data(), 0));
	EXPECT_EQ(0, buffer[0]);
	EXPECT_EQ(expectedSize, CompressionValue::encode(myCompression, buffer.data(), buffer.size()));
	EXPECT_EQ(myCompression.name.length(), reinterpret_cast<int64_t>(buffer.data()));
	EXPECT_FALSE(CompressionValue::decode(buffer.data(), 0).has_value());
	auto read = CompressionValue::decode(buffer.data(), buffer.size());
	ASSERT_TRUE(read.has_value());
	EXPECT_EQ(myCompression, read.value());
	}

	TEST(Metadata, setGetPlaneLayout) {
	using PlaneLayoutValue = StandardMetadata<StandardMetadataType::PLANE_LAYOUTS>::value;
	PlaneLayout myPlaneLayout;
	myPlaneLayout.offsetInBytes = 10;
	myPlaneLayout.sampleIncrementInBits = 11;
	myPlaneLayout.strideInBytes = 12;
	myPlaneLayout.widthInSamples = 13;
	myPlaneLayout.heightInSamples = 14;
	myPlaneLayout.totalSizeInBytes = 15;
	myPlaneLayout.horizontalSubsampling = 16;
	myPlaneLayout.verticalSubsampling = 17;

	myPlaneLayout.components.resize(3);
	for (int i = 0; i < myPlaneLayout.components.size(); i++) {
	auto& it = myPlaneLayout.components[i];
	it.type = ExtendableType{"Plane ID", 40 + i};
	it.offsetInBits = 20 + i;
	it.sizeInBits = 30 + i;
	}

	std::vector<PlaneLayout> layouts{myPlaneLayout, PlaneLayout{}};

	std::vector<char> buffer(5000, '\0');
	constexpr int componentSize = 8 + (4 * sizeof(int64_t));
	constexpr int firstLayoutSize = (8 + 1) * sizeof(int64_t) + (3 * componentSize);
	constexpr int secondLayoutSize = (8 + 1) * sizeof(int64_t);
	constexpr int expectedSize = firstLayoutSize + secondLayoutSize + sizeof(int64_t);
	EXPECT_EQ(expectedSize, PlaneLayoutValue::encode(layouts, buffer.data(), 0));
	EXPECT_EQ(0, buffer[0]);
	EXPECT_EQ(expectedSize, PlaneLayoutValue::encode(layouts, buffer.data(), buffer.size()));
	EXPECT_EQ(3, reinterpret_cast<int64_t*>(buffer.data())[1]);
	EXPECT_EQ(8, reinterpret_cast<int64_t*>(buffer.data())[2]);
	EXPECT_EQ(40, reinterpret_cast<int64_t*>(buffer.data())[4]);
	EXPECT_EQ(31, reinterpret_cast<int64_t*>(buffer.data())[11]);
	EXPECT_EQ(22, reinterpret_cast<int64_t*>(buffer.data())[15]);
	EXPECT_EQ(10, reinterpret_cast<int64_t*>(buffer.data())[17]);
	EXPECT_EQ(11, reinterpret_cast<int64_t*>(buffer.data())[18]);
	EXPECT_FALSE(PlaneLayoutValue::decode(buffer.data(), 0).has_value());
	auto read = PlaneLayoutValue::decode(buffer.data(), buffer.size());
	ASSERT_TRUE(read.has_value());
	EXPECT_EQ(layouts, *read);
	}

	TEST(Metadata, setGetRects) {
	using RectsValue = StandardMetadata<StandardMetadataType::CROP>::value;
	std::vector<uint8_t> buffer(500, 0);
	std::vector<Rect> cropRects{2};
	cropRects[0] = Rect{10, 11, 12, 13};
	cropRects[1] = Rect{20, 21, 22, 23};

	constexpr int expectedSize = sizeof(int64_t) + (8 * sizeof(int32_t));
	EXPECT_EQ(expectedSize, RectsValue::encode(cropRects, buffer.data(), buffer.size()));
	EXPECT_EQ(2, reinterpret_cast<int64_t*>(buffer.data())[0]);
	EXPECT_EQ(10, reinterpret_cast<int32_t*>(buffer.data())[2]);
	auto read = RectsValue::decode(buffer.data(), buffer.size());
	ASSERT_TRUE(read.has_value());
	EXPECT_EQ(cropRects.size(), read->size());
	EXPECT_EQ(cropRects, *read);
	}

	TEST(Metadata, setGetSmpte2086) {
	using Smpte2086Value = StandardMetadata<StandardMetadataType::SMPTE2086>::value;
	Smpte2086 source;
	source.minLuminance = 12.335f;
	source.maxLuminance = 452.889f;
	source.whitePoint = XyColor{-6.f, -9.f};
	source.primaryRed = XyColor{.1f, .2f};
	source.primaryGreen = XyColor{.3f, .4f};
	source.primaryBlue = XyColor{.5f, .6f};

	constexpr int expectedSize = 10 * sizeof(float);
	std::vector<uint8_t> buffer(500, 0);
	EXPECT_EQ(expectedSize, Smpte2086Value::encode(source, buffer.data(), buffer.size()));
	auto read = Smpte2086Value::decode(buffer.data(), buffer.size());
	ASSERT_TRUE(read.has_value());
	ASSERT_TRUE(read->has_value());
	EXPECT_EQ(source, read->value());

	// A valid encoding of a nullopt
	read = Smpte2086Value::decode(nullptr, 0);
	ASSERT_TRUE(read.has_value());
	EXPECT_FALSE(read->has_value());
	}

	TEST(Metadata, setGetCta861_3) {
	using Cta861_3Value = StandardMetadata<StandardMetadataType::CTA861_3>::value;
	Cta861_3 source;
	source.maxFrameAverageLightLevel = 244.55f;
	source.maxContentLightLevel = 202.202f;

	constexpr int expectedSize = 2 * sizeof(float);
	std::vector<uint8_t> buffer(500, 0);
	EXPECT_EQ(expectedSize, Cta861_3Value::encode(source, buffer.data(), buffer.size()));
	auto read = Cta861_3Value::decode(buffer.data(), buffer.size());
	ASSERT_TRUE(read.has_value());
	ASSERT_TRUE(read->has_value());
	EXPECT_EQ(source, read->value());

	// A valid encoding of a nullopt
	read = Cta861_3Value::decode(nullptr, 0);
	ASSERT_TRUE(read.has_value());
	EXPECT_FALSE(read->has_value());
	}

	TEST(Metadata, setGetSmpte2094_10) {
	using SMPTE2094_10Value = StandardMetadata<StandardMetadataType::SMPTE2094_10>::value;

	std::vector<uint8_t> buffer(500, 0);
	EXPECT_EQ(0, SMPTE2094_10Value::encode(std::nullopt, buffer.data(), buffer.size()));
	auto read = SMPTE2094_10Value::decode(buffer.data(), 0);
	ASSERT_TRUE(read.has_value());
	EXPECT_FALSE(read->has_value());

	const std::vector<uint8_t> emptyBuffer;
	EXPECT_EQ(sizeof(int64_t),
	SMPTE2094_10Value::encode(emptyBuffer, buffer.data(), buffer.size()));
	read = SMPTE2094_10Value::decode(buffer.data(), buffer.size());
	ASSERT_TRUE(read.has_value());
	ASSERT_TRUE(read->has_value());
	EXPECT_EQ(0, read->value().size());

	const std::vector<uint8_t> simpleBuffer{0, 1, 2, 3, 4, 5};
	EXPECT_EQ(sizeof(int64_t) + 6,
	SMPTE2094_10Value::encode(simpleBuffer, buffer.data(), buffer.size()));
	read = SMPTE2094_10Value::decode(buffer.data(), buffer.size());
	ASSERT_TRUE(read.has_value());
	ASSERT_TRUE(read->has_value());
	EXPECT_EQ(6, read->value().size());
	EXPECT_EQ(simpleBuffer, read->value());
	}

	TEST(MetadataProvider, bufferId) {
	using BufferId = StandardMetadata<StandardMetadataType::BUFFER_ID>::value;
	std::vector<uint8_t> buffer(500, 0);
	int result = provideStandardMetadata(StandardMetadataType::BUFFER_ID, buffer.data(),
	buffer.size(), []<StandardMetadataType T>(auto&& provide) {
	if constexpr (T == StandardMetadataType::BUFFER_ID) {
	return provide(42);
	}
	return 0;
	});

	EXPECT_EQ(8, result);
	auto read = BufferId::decode(buffer.data(), buffer.size());
	EXPECT_EQ(42, read.value_or(0));
	}

	TEST(MetadataProvider, allJumpsWork) {
	const auto& values = ndk::internal::enum_values<StandardMetadataType>;
	auto get = [](StandardMetadataType type) -> int {
	return provideStandardMetadata(type, nullptr, 0, []<StandardMetadataType T>(auto&&) {
	return static_cast<int>(T) + 100;
	});
	};

	for (auto& type : values) {
	const int expected = type == StandardMetadataType::INVALID ? -AIMAPPER_ERROR_UNSUPPORTED
	: static_cast<int>(type) + 100;
	EXPECT_EQ(expected, get(type));
	}
	}

	TEST(MetadataProvider, invalid) {
	int result = provideStandardMetadata(StandardMetadataType::INVALID, nullptr, 0,
	[]<StandardMetadataType T>(auto&&) { return 10; });

	EXPECT_EQ(-AIMAPPER_ERROR_UNSUPPORTED, result);
	}

	TEST(MetadataProvider, outOfBounds) {
	int result = provideStandardMetadata(static_cast<StandardMetadataType>(-1), nullptr, 0,
	[]<StandardMetadataType T>(auto&&) { return 10; });
	EXPECT_EQ(-AIMAPPER_ERROR_UNSUPPORTED, result) << "-1 should have resulted in UNSUPPORTED";

	result = provideStandardMetadata(static_cast<StandardMetadataType>(100), nullptr, 0,
	[]<StandardMetadataType T>(auto&&) { return 10; });
	EXPECT_EQ(-AIMAPPER_ERROR_UNSUPPORTED, result)
	<< "100 (out of range) should have resulted in UNSUPPORTED";
	}