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Diffstat (limited to 'third_party/jpeg-xl/lib/jxl/roundtrip_test.cc')
| -rw-r--r-- | third_party/jpeg-xl/lib/jxl/roundtrip_test.cc | 985 |
1 files changed, 985 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/jxl/roundtrip_test.cc b/third_party/jpeg-xl/lib/jxl/roundtrip_test.cc new file mode 100644 index 0000000000..c00fda0de1 --- /dev/null +++ b/third_party/jpeg-xl/lib/jxl/roundtrip_test.cc @@ -0,0 +1,985 @@ +// Copyright (c) the JPEG XL 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. + +#include <jxl/cms.h> +#include <jxl/codestream_header.h> +#include <jxl/color_encoding.h> +#include <jxl/decode.h> +#include <jxl/decode_cxx.h> +#include <jxl/encode.h> +#include <jxl/encode_cxx.h> +#include <jxl/types.h> + +#include <cstddef> +#include <cstdint> +#include <cstdio> +#include <cstring> +#include <string> +#include <utility> +#include <vector> + +#include "lib/extras/codec.h" +#include "lib/jxl/base/common.h" +#include "lib/jxl/base/span.h" +#include "lib/jxl/butteraugli/butteraugli.h" +#include "lib/jxl/color_encoding_internal.h" +#include "lib/jxl/dec_bit_reader.h" +#include "lib/jxl/enc_butteraugli_comparator.h" +#include "lib/jxl/enc_external_image.h" +#include "lib/jxl/encode_internal.h" +#include "lib/jxl/image.h" +#include "lib/jxl/image_ops.h" +#include "lib/jxl/image_test_utils.h" +#include "lib/jxl/test_utils.h" +#include "lib/jxl/testing.h" + +namespace { + +// Converts a test image to a CodecInOut. +// icc_profile can be empty to automatically deduce profile from the pixel +// format, or filled in to force this ICC profile +jxl::CodecInOut ConvertTestImage(const std::vector<uint8_t>& buf, + const size_t xsize, const size_t ysize, + const JxlPixelFormat& pixel_format, + const jxl::Bytes& icc_profile) { + jxl::CodecInOut io; + io.SetSize(xsize, ysize); + + bool is_gray = pixel_format.num_channels < 3; + bool has_alpha = + pixel_format.num_channels == 2 || pixel_format.num_channels == 4; + + io.metadata.m.color_encoding.SetColorSpace(is_gray ? jxl::ColorSpace::kGray + : jxl::ColorSpace::kRGB); + if (has_alpha) { + // Note: alpha > 16 not yet supported by the C++ codec + switch (pixel_format.data_type) { + case JXL_TYPE_UINT8: + io.metadata.m.SetAlphaBits(8); + break; + case JXL_TYPE_UINT16: + case JXL_TYPE_FLOAT: + case JXL_TYPE_FLOAT16: + io.metadata.m.SetAlphaBits(16); + break; + default: + ADD_FAILURE() << "Roundtrip tests for data type " + << pixel_format.data_type << " not yet implemented."; + } + } + size_t bitdepth = 0; + switch (pixel_format.data_type) { + case JXL_TYPE_FLOAT: + bitdepth = 32; + io.metadata.m.SetFloat32Samples(); + break; + case JXL_TYPE_FLOAT16: + bitdepth = 16; + io.metadata.m.SetFloat16Samples(); + break; + case JXL_TYPE_UINT8: + bitdepth = 8; + io.metadata.m.SetUintSamples(8); + break; + case JXL_TYPE_UINT16: + bitdepth = 16; + io.metadata.m.SetUintSamples(16); + break; + default: + ADD_FAILURE() << "Roundtrip tests for data type " + << pixel_format.data_type << " not yet implemented."; + } + jxl::ColorEncoding color_encoding; + if (!icc_profile.empty()) { + jxl::IccBytes icc_profile_copy; + icc_profile.AppendTo(&icc_profile_copy); + EXPECT_TRUE( + color_encoding.SetICC(std::move(icc_profile_copy), JxlGetDefaultCms())); + } else if (pixel_format.data_type == JXL_TYPE_FLOAT) { + color_encoding = jxl::ColorEncoding::LinearSRGB(is_gray); + } else { + color_encoding = jxl::ColorEncoding::SRGB(is_gray); + } + EXPECT_TRUE(ConvertFromExternal(jxl::Bytes(buf), xsize, ysize, color_encoding, + /*bits_per_sample=*/bitdepth, pixel_format, + /*pool=*/nullptr, &io.Main())); + return io; +} + +template <typename T> +T ConvertTestPixel(float val); + +template <> +float ConvertTestPixel<float>(const float val) { + return val; +} + +template <> +uint16_t ConvertTestPixel<uint16_t>(const float val) { + return (uint16_t)(val * UINT16_MAX); +} + +template <> +uint8_t ConvertTestPixel<uint8_t>(const float val) { + return (uint8_t)(val * UINT8_MAX); +} + +// Returns a test image. +template <typename T> +std::vector<uint8_t> GetTestImage(const size_t xsize, const size_t ysize, + const JxlPixelFormat& pixel_format) { + std::vector<T> pixels(xsize * ysize * pixel_format.num_channels); + for (size_t y = 0; y < ysize; y++) { + for (size_t x = 0; x < xsize; x++) { + for (size_t chan = 0; chan < pixel_format.num_channels; chan++) { + float val; + switch (chan % 4) { + case 0: + val = static_cast<float>(y) / static_cast<float>(ysize); + break; + case 1: + val = static_cast<float>(x) / static_cast<float>(xsize); + break; + case 2: + val = static_cast<float>(x + y) / static_cast<float>(xsize + ysize); + break; + case 3: + val = static_cast<float>(x * y) / static_cast<float>(xsize * ysize); + break; + } + pixels[(y * xsize + x) * pixel_format.num_channels + chan] = + ConvertTestPixel<T>(val); + } + } + } + std::vector<uint8_t> bytes(pixels.size() * sizeof(T)); + memcpy(bytes.data(), pixels.data(), sizeof(T) * pixels.size()); + return bytes; +} + +void EncodeWithEncoder(JxlEncoder* enc, std::vector<uint8_t>* compressed) { + compressed->resize(64); + uint8_t* next_out = compressed->data(); + size_t avail_out = compressed->size() - (next_out - compressed->data()); + JxlEncoderStatus process_result = JXL_ENC_NEED_MORE_OUTPUT; + while (process_result == JXL_ENC_NEED_MORE_OUTPUT) { + process_result = JxlEncoderProcessOutput(enc, &next_out, &avail_out); + if (process_result == JXL_ENC_NEED_MORE_OUTPUT) { + size_t offset = next_out - compressed->data(); + compressed->resize(compressed->size() * 2); + next_out = compressed->data() + offset; + avail_out = compressed->size() - offset; + } + } + compressed->resize(next_out - compressed->data()); + EXPECT_EQ(JXL_ENC_SUCCESS, process_result); +} + +// Generates some pixels using some dimensions and pixel_format, +// compresses them, and verifies that the decoded version is similar to the +// original pixels. +// TODO(firsching): change this to be a parameterized test, like in +// decode_test.cc +template <typename T> +void VerifyRoundtripCompression( + const size_t xsize, const size_t ysize, + const JxlPixelFormat& input_pixel_format, + const JxlPixelFormat& output_pixel_format, const bool lossless, + const bool use_container, const uint32_t resampling = 1, + const bool already_downsampled = false, + const std::vector<std::pair<JxlExtraChannelType, std::string>>& + extra_channels = {}, + const int upsampling_mode = -1) { + size_t orig_xsize = xsize; + size_t orig_ysize = ysize; + if (already_downsampled) { + orig_xsize = jxl::DivCeil(xsize, resampling); + orig_ysize = jxl::DivCeil(ysize, resampling); + } + + JxlPixelFormat extra_channel_pixel_format = input_pixel_format; + extra_channel_pixel_format.num_channels = 1; + const std::vector<uint8_t> extra_channel_bytes = + GetTestImage<T>(xsize, ysize, extra_channel_pixel_format); + const std::vector<uint8_t> original_bytes = + GetTestImage<T>(orig_xsize, orig_ysize, input_pixel_format); + jxl::CodecInOut original_io = ConvertTestImage( + original_bytes, orig_xsize, orig_ysize, input_pixel_format, {}); + + JxlEncoder* enc = JxlEncoderCreate(nullptr); + EXPECT_NE(nullptr, enc); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetCodestreamLevel(enc, 10)); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderUseContainer(enc, use_container)); + JxlBasicInfo basic_info; + jxl::test::JxlBasicInfoSetFromPixelFormat(&basic_info, &input_pixel_format); + basic_info.xsize = xsize; + basic_info.ysize = ysize; + basic_info.uses_original_profile = lossless; + uint32_t num_channels = input_pixel_format.num_channels; + size_t has_interleaved_alpha = num_channels == 2 || num_channels == 4; + JxlPixelFormat output_pixel_format_with_extra_channel_alpha = + output_pixel_format; + + // In the case where we have an alpha channel, but it is provided as an extra + // channel and not interleaved, we do two things here: + // 1. modify the original_io to have the correct alpha channel + // 2. change the output_format_with_extra_alpha to have an alpha channel + bool alpha_in_extra_channels_vector = false; + for (const auto& extra_channel : extra_channels) { + if (extra_channel.first == JXL_CHANNEL_ALPHA) { + alpha_in_extra_channels_vector = true; + } + } + if (alpha_in_extra_channels_vector && !has_interleaved_alpha) { + jxl::ImageF alpha_channel(xsize, ysize); + EXPECT_TRUE(jxl::ConvertFromExternal( + extra_channel_bytes.data(), extra_channel_bytes.size(), xsize, ysize, + basic_info.bits_per_sample, extra_channel_pixel_format, 0, + /*pool=*/nullptr, &alpha_channel)); + + original_io.metadata.m.SetAlphaBits(basic_info.bits_per_sample); + original_io.Main().SetAlpha(std::move(alpha_channel)); + output_pixel_format_with_extra_channel_alpha.num_channels++; + } + // Those are the num_extra_channels including a potential alpha channel. + basic_info.num_extra_channels = extra_channels.size() + has_interleaved_alpha; + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc, &basic_info)); + EXPECT_EQ(enc->metadata.m.num_extra_channels, + extra_channels.size() + has_interleaved_alpha); + JxlColorEncoding color_encoding; + if (input_pixel_format.data_type == JXL_TYPE_FLOAT) { + JxlColorEncodingSetToLinearSRGB( + &color_encoding, + /*is_gray=*/input_pixel_format.num_channels < 3); + } else { + JxlColorEncodingSetToSRGB(&color_encoding, + /*is_gray=*/input_pixel_format.num_channels < 3); + } + + std::vector<JxlExtraChannelInfo> channel_infos; + for (const auto& extra_channel : extra_channels) { + auto channel_type = extra_channel.first; + JxlExtraChannelInfo channel_info; + JxlEncoderInitExtraChannelInfo(channel_type, &channel_info); + channel_info.bits_per_sample = (lossless ? basic_info.bits_per_sample : 8); + channel_info.exponent_bits_per_sample = + (lossless ? basic_info.exponent_bits_per_sample : 0); + channel_infos.push_back(channel_info); + } + for (size_t index = 0; index < channel_infos.size(); index++) { + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetExtraChannelInfo(enc, index + has_interleaved_alpha, + &channel_infos[index])); + std::string name = extra_channels[index].second; + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetExtraChannelName(enc, index + has_interleaved_alpha, + name.c_str(), name.length())); + } + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetColorEncoding(enc, &color_encoding)); + if (resampling > 1) { + EXPECT_EQ(JXL_ENC_ERROR, JxlEncoderSetUpsamplingMode(enc, 3, 0)); + EXPECT_EQ(JXL_ENC_ERROR, JxlEncoderSetUpsamplingMode(enc, resampling, -2)); + EXPECT_EQ(JXL_ENC_ERROR, JxlEncoderSetUpsamplingMode(enc, resampling, 2)); + } + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetUpsamplingMode(enc, resampling, upsampling_mode)); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc, nullptr); + JxlEncoderSetFrameLossless(frame_settings, lossless); + if (resampling > 1) { + EXPECT_EQ( + JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_RESAMPLING, resampling)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_ALREADY_DOWNSAMPLED, + already_downsampled)); + } + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderAddImageFrame(frame_settings, &input_pixel_format, + (void*)original_bytes.data(), + original_bytes.size())); + EXPECT_EQ(frame_settings->enc->input_queue.empty(), false); + for (size_t index = 0; index < channel_infos.size(); index++) { + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetExtraChannelBuffer( + frame_settings, &extra_channel_pixel_format, + (void*)extra_channel_bytes.data(), extra_channel_bytes.size(), + index + has_interleaved_alpha)); + } + JxlEncoderCloseInput(enc); + std::vector<uint8_t> compressed; + EncodeWithEncoder(enc, &compressed); + JxlEncoderDestroy(enc); + + JxlDecoder* dec = JxlDecoderCreate(nullptr); + EXPECT_NE(nullptr, dec); + + const uint8_t* next_in = compressed.data(); + size_t avail_in = compressed.size(); + + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderSubscribeEvents(dec, JXL_DEC_BASIC_INFO | + JXL_DEC_COLOR_ENCODING | + JXL_DEC_FULL_IMAGE)); + + JxlDecoderSetInput(dec, next_in, avail_in); + EXPECT_EQ(JXL_DEC_BASIC_INFO, JxlDecoderProcessInput(dec)); + size_t buffer_size; + EXPECT_EQ( + JXL_DEC_SUCCESS, + JxlDecoderImageOutBufferSize( + dec, &output_pixel_format_with_extra_channel_alpha, &buffer_size)); + if (&input_pixel_format == &output_pixel_format_with_extra_channel_alpha && + !already_downsampled) { + EXPECT_EQ(buffer_size, original_bytes.size()); + } + + JxlBasicInfo info; + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderGetBasicInfo(dec, &info)); + EXPECT_EQ(xsize, info.xsize); + EXPECT_EQ(ysize, info.ysize); + EXPECT_EQ(extra_channels.size() + has_interleaved_alpha, + info.num_extra_channels); + + EXPECT_EQ(JXL_DEC_COLOR_ENCODING, JxlDecoderProcessInput(dec)); + + size_t icc_profile_size; + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderGetICCProfileSize(dec, JXL_COLOR_PROFILE_TARGET_DATA, + &icc_profile_size)); + std::vector<uint8_t> icc_profile(icc_profile_size); + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderGetColorAsICCProfile( + dec, JXL_COLOR_PROFILE_TARGET_DATA, + icc_profile.data(), icc_profile.size())); + + std::vector<uint8_t> decoded_bytes(buffer_size); + + EXPECT_EQ(JXL_DEC_NEED_IMAGE_OUT_BUFFER, JxlDecoderProcessInput(dec)); + + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderSetImageOutBuffer( + dec, &output_pixel_format_with_extra_channel_alpha, + decoded_bytes.data(), decoded_bytes.size())); + std::vector<std::vector<uint8_t>> extra_channel_decoded_bytes( + info.num_extra_channels - has_interleaved_alpha); + + for (size_t index = has_interleaved_alpha; index < info.num_extra_channels; + index++) { + JxlExtraChannelInfo channel_info; + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderGetExtraChannelInfo(dec, index, &channel_info)); + EXPECT_EQ(channel_info.type, + extra_channels[index - has_interleaved_alpha].first); + std::string input_name = + extra_channels[index - has_interleaved_alpha].second; + const size_t name_length = channel_info.name_length; + EXPECT_EQ(input_name.size(), name_length); + std::vector<char> output_name(name_length + 1); + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderGetExtraChannelName(dec, index, output_name.data(), + output_name.size())); + EXPECT_EQ(0, + memcmp(input_name.data(), output_name.data(), input_name.size())); + size_t extra_buffer_size; + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderExtraChannelBufferSize(dec, &output_pixel_format, + &extra_buffer_size, index)); + std::vector<uint8_t> extra_decoded_bytes(extra_buffer_size); + extra_channel_decoded_bytes[index - has_interleaved_alpha] = + std::move(extra_decoded_bytes); + EXPECT_EQ( + JXL_DEC_SUCCESS, + JxlDecoderSetExtraChannelBuffer( + dec, &output_pixel_format, + extra_channel_decoded_bytes[index - has_interleaved_alpha].data(), + extra_channel_decoded_bytes[index - has_interleaved_alpha].size(), + index)); + } + EXPECT_EQ(JXL_DEC_FULL_IMAGE, JxlDecoderProcessInput(dec)); + // Check if there are no further errors after getting the full image, e.g. + // check that the final codestream box is actually marked as last. + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderProcessInput(dec)); + + JxlDecoderDestroy(dec); + + jxl::CodecInOut decoded_io = ConvertTestImage( + decoded_bytes, xsize, ysize, output_pixel_format_with_extra_channel_alpha, + jxl::Bytes(icc_profile)); + + if (already_downsampled) { + jxl::Image3F* color = decoded_io.Main().color(); + jxl::DownsampleImage(color, resampling); + if (decoded_io.Main().HasAlpha()) { + jxl::ImageF* alpha = decoded_io.Main().alpha(); + jxl::DownsampleImage(alpha, resampling); + } + decoded_io.SetSize(color->xsize(), color->ysize()); + } + + if (lossless && !already_downsampled) { + JXL_EXPECT_OK(jxl::SamePixels(*original_io.Main().color(), + *decoded_io.Main().color(), _)); + } else { + jxl::ButteraugliParams ba; + float butteraugli_score = ButteraugliDistance( + original_io.frames, decoded_io.frames, ba, *JxlGetDefaultCms(), + /*distmap=*/nullptr, nullptr); + float target_score = 1.3f; + // upsampling mode 1 (unlike default and NN) does not downscale back to the + // already downsampled image + if (upsampling_mode == 1 && resampling >= 4 && already_downsampled) + target_score = 15.f; + EXPECT_LE(butteraugli_score, target_score); + } + JxlPixelFormat extra_channel_output_pixel_format = output_pixel_format; + extra_channel_output_pixel_format.num_channels = 1; + for (auto& extra_channel : extra_channel_decoded_bytes) { + EXPECT_EQ(extra_channel.size(), extra_channel_bytes.size()); + if (lossless) { + EXPECT_EQ(jxl::test::ComparePixels(extra_channel.data(), + extra_channel_bytes.data(), xsize, + ysize, extra_channel_pixel_format, + extra_channel_output_pixel_format), + 0u); + EXPECT_EQ(extra_channel, extra_channel_bytes); + } + } +} + +} // namespace + +TEST(RoundtripTest, FloatFrameRoundtripTest) { + std::vector<std::vector<std::pair<JxlExtraChannelType, std::string>>> + extra_channels_cases = {{}, + {{JXL_CHANNEL_ALPHA, "my extra alpha channel"}}, + {{JXL_CHANNEL_CFA, "my cfa channel"}}, + {{JXL_CHANNEL_DEPTH, "depth"}, + {JXL_CHANNEL_SELECTION_MASK, "mask"}, + {JXL_CHANNEL_BLACK, "black"}, + {JXL_CHANNEL_CFA, "my cfa channel"}, + {JXL_CHANNEL_OPTIONAL, "optional channel"}}, + {{JXL_CHANNEL_DEPTH, "very deep"}}}; + for (int use_container = 0; use_container < 2; use_container++) { + for (int lossless = 0; lossless < 2; lossless++) { + for (uint32_t num_channels = 1; num_channels < 5; num_channels++) { + for (auto& extra_channels : extra_channels_cases) { + uint32_t has_alpha = static_cast<uint32_t>(num_channels % 2 == 0); + uint32_t total_extra_channels = has_alpha + extra_channels.size(); + // There's no support (yet) for lossless extra float + // channels, so we don't test it. + if (total_extra_channels == 0 || !lossless) { + JxlPixelFormat pixel_format = JxlPixelFormat{ + num_channels, JXL_TYPE_FLOAT, JXL_NATIVE_ENDIAN, 0}; + VerifyRoundtripCompression<float>( + 63, 129, pixel_format, pixel_format, (bool)lossless, + (bool)use_container, 1, false, extra_channels); + } + } + } + } + } +} + +TEST(RoundtripTest, Uint16FrameRoundtripTest) { + std::vector<std::vector<std::pair<JxlExtraChannelType, std::string>>> + extra_channels_cases = {{}, + {{JXL_CHANNEL_ALPHA, "my extra alpha channel"}}, + {{JXL_CHANNEL_CFA, "my cfa channel"}}, + {{JXL_CHANNEL_CFA, "my cfa channel"}, + {JXL_CHANNEL_BLACK, "k_channel"}}, + {{JXL_CHANNEL_DEPTH, "very deep"}}}; + for (int use_container = 0; use_container < 2; use_container++) { + for (int lossless = 0; lossless < 2; lossless++) { + for (uint32_t num_channels = 1; num_channels < 5; num_channels++) { + for (auto& extra_channels : extra_channels_cases) { + JxlPixelFormat pixel_format = JxlPixelFormat{ + num_channels, JXL_TYPE_UINT16, JXL_NATIVE_ENDIAN, 0}; + VerifyRoundtripCompression<uint16_t>( + 63, 129, pixel_format, pixel_format, (bool)lossless, + (bool)use_container, 1, false, extra_channels); + } + } + } + } +} + +TEST(RoundtripTest, Uint8FrameRoundtripTest) { + std::vector<std::vector<std::pair<JxlExtraChannelType, std::string>>> + extra_channels_cases = {{}, + {{JXL_CHANNEL_THERMAL, "temperature"}}, + {{JXL_CHANNEL_ALPHA, "my extra alpha channel"}}, + {{JXL_CHANNEL_CFA, "my cfa channel"}}, + {{JXL_CHANNEL_CFA, "my cfa channel"}, + {JXL_CHANNEL_BLACK, "k_channel"}}, + {{JXL_CHANNEL_DEPTH, "very deep"}}}; + for (int use_container = 0; use_container < 2; use_container++) { + for (int lossless = 0; lossless < 2; lossless++) { + for (uint32_t num_channels = 1; num_channels < 5; num_channels++) { + for (auto& extra_channels : extra_channels_cases) { + JxlPixelFormat pixel_format = JxlPixelFormat{ + num_channels, JXL_TYPE_UINT8, JXL_NATIVE_ENDIAN, 0}; + VerifyRoundtripCompression<uint8_t>( + 63, 129, pixel_format, pixel_format, (bool)lossless, + (bool)use_container, 1, false, extra_channels); + } + } + } + } +} + +TEST(RoundtripTest, TestNonlinearSrgbAsXybEncoded) { + for (int use_container = 0; use_container < 2; use_container++) { + for (uint32_t num_channels = 1; num_channels < 5; num_channels++) { + JxlPixelFormat pixel_format_in = + JxlPixelFormat{num_channels, JXL_TYPE_UINT8, JXL_NATIVE_ENDIAN, 0}; + JxlPixelFormat pixel_format_out = + JxlPixelFormat{num_channels, JXL_TYPE_FLOAT, JXL_NATIVE_ENDIAN, 0}; + VerifyRoundtripCompression<uint8_t>( + 63, 129, pixel_format_in, pixel_format_out, + /*lossless=*/false, (bool)use_container, 1, false, {}); + } + } +} + +TEST(RoundtripTest, Resampling) { + JxlPixelFormat pixel_format = + JxlPixelFormat{3, JXL_TYPE_UINT8, JXL_NATIVE_ENDIAN, 0}; + VerifyRoundtripCompression<uint8_t>(63, 129, pixel_format, pixel_format, + /*lossless=*/false, + /*use_container=*/false, 2, + /*already_downsampled=*/false); + + // TODO(lode): also make this work for odd sizes. This requires a fix in + // enc_frame.cc to not set custom_size_or_origin to true due to even/odd + // mismatch. + for (int factor : {2, 4, 8}) { + for (int upsampling_mode : {-1, 0, 1}) { + VerifyRoundtripCompression<uint8_t>( + 64, 128, pixel_format, pixel_format, + /*lossless=*/true, + /*use_container=*/false, factor, + /*already_downsampled=*/true, /*extra_channels=*/{}, upsampling_mode); + } + } +} + +TEST(RoundtripTest, ExtraBoxesTest) { + JxlPixelFormat pixel_format = + JxlPixelFormat{4, JXL_TYPE_FLOAT, JXL_NATIVE_ENDIAN, 0}; + const size_t xsize = 61; + const size_t ysize = 71; + + const std::vector<uint8_t> original_bytes = + GetTestImage<float>(xsize, ysize, pixel_format); + jxl::CodecInOut original_io = + ConvertTestImage(original_bytes, xsize, ysize, pixel_format, {}); + + JxlEncoder* enc = JxlEncoderCreate(nullptr); + EXPECT_NE(nullptr, enc); + + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderUseContainer(enc, true)); + JxlBasicInfo basic_info; + jxl::test::JxlBasicInfoSetFromPixelFormat(&basic_info, &pixel_format); + basic_info.xsize = xsize; + basic_info.ysize = ysize; + basic_info.uses_original_profile = false; + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetCodestreamLevel(enc, 10)); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc, &basic_info)); + JxlColorEncoding color_encoding; + if (pixel_format.data_type == JXL_TYPE_FLOAT) { + JxlColorEncodingSetToLinearSRGB(&color_encoding, + /*is_gray=*/pixel_format.num_channels < 3); + } else { + JxlColorEncodingSetToSRGB(&color_encoding, + /*is_gray=*/pixel_format.num_channels < 3); + } + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetColorEncoding(enc, &color_encoding)); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc, nullptr); + JxlEncoderSetFrameLossless(frame_settings, false); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderAddImageFrame(frame_settings, &pixel_format, + (void*)original_bytes.data(), + original_bytes.size())); + JxlEncoderCloseInput(enc); + + std::vector<uint8_t> compressed; + EncodeWithEncoder(enc, &compressed); + JxlEncoderDestroy(enc); + + std::vector<uint8_t> extra_data(1023); + jxl::AppendBoxHeader(jxl::MakeBoxType("crud"), extra_data.size(), false, + &compressed); + compressed.insert(compressed.end(), extra_data.begin(), extra_data.end()); + + JxlDecoder* dec = JxlDecoderCreate(nullptr); + EXPECT_NE(nullptr, dec); + + const uint8_t* next_in = compressed.data(); + size_t avail_in = compressed.size(); + + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderSubscribeEvents(dec, JXL_DEC_BASIC_INFO | + JXL_DEC_COLOR_ENCODING | + JXL_DEC_FULL_IMAGE)); + + JxlDecoderSetInput(dec, next_in, avail_in); + EXPECT_EQ(JXL_DEC_BASIC_INFO, JxlDecoderProcessInput(dec)); + size_t buffer_size; + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderImageOutBufferSize(dec, &pixel_format, &buffer_size)); + EXPECT_EQ(buffer_size, original_bytes.size()); + + JxlBasicInfo info; + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderGetBasicInfo(dec, &info)); + EXPECT_EQ(xsize, info.xsize); + EXPECT_EQ(ysize, info.ysize); + + EXPECT_EQ(JXL_DEC_COLOR_ENCODING, JxlDecoderProcessInput(dec)); + + size_t icc_profile_size; + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderGetICCProfileSize(dec, JXL_COLOR_PROFILE_TARGET_DATA, + &icc_profile_size)); + std::vector<uint8_t> icc_profile(icc_profile_size); + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderGetColorAsICCProfile( + dec, JXL_COLOR_PROFILE_TARGET_DATA, + icc_profile.data(), icc_profile.size())); + + std::vector<uint8_t> decoded_bytes(buffer_size); + + EXPECT_EQ(JXL_DEC_NEED_IMAGE_OUT_BUFFER, JxlDecoderProcessInput(dec)); + + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderSetImageOutBuffer(dec, &pixel_format, + decoded_bytes.data(), + decoded_bytes.size())); + + EXPECT_EQ(JXL_DEC_FULL_IMAGE, JxlDecoderProcessInput(dec)); + + JxlDecoderDestroy(dec); + + jxl::CodecInOut decoded_io = ConvertTestImage( + decoded_bytes, xsize, ysize, pixel_format, jxl::Bytes(icc_profile)); + + jxl::ButteraugliParams ba; + float butteraugli_score = ButteraugliDistance( + original_io.frames, decoded_io.frames, ba, *JxlGetDefaultCms(), + /*distmap=*/nullptr, nullptr); + EXPECT_LE(butteraugli_score, 1.0f); +} + +TEST(RoundtripTest, MultiFrameTest) { + JxlPixelFormat pixel_format = + JxlPixelFormat{4, JXL_TYPE_FLOAT, JXL_NATIVE_ENDIAN, 0}; + const size_t xsize = 61; + const size_t ysize = 71; + const size_t nb_frames = 4; + size_t compressed_size = 0; + + for (int index_frames : {0, 1}) { + // use a vertical filmstrip of nb_frames frames + const std::vector<uint8_t> original_bytes = + GetTestImage<float>(xsize, ysize * nb_frames, pixel_format); + jxl::CodecInOut original_io = ConvertTestImage( + original_bytes, xsize, ysize * nb_frames, pixel_format, {}); + + JxlEncoder* enc = JxlEncoderCreate(nullptr); + EXPECT_NE(nullptr, enc); + + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderUseContainer(enc, true)); + JxlBasicInfo basic_info; + jxl::test::JxlBasicInfoSetFromPixelFormat(&basic_info, &pixel_format); + basic_info.xsize = xsize; + basic_info.ysize = ysize; + basic_info.uses_original_profile = JXL_FALSE; + basic_info.have_animation = JXL_TRUE; + basic_info.animation.tps_numerator = 1; + basic_info.animation.tps_denominator = 1; + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetCodestreamLevel(enc, 10)); + + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc, &basic_info)); + JxlColorEncoding color_encoding; + if (pixel_format.data_type == JXL_TYPE_FLOAT) { + JxlColorEncodingSetToLinearSRGB( + &color_encoding, + /*is_gray=*/pixel_format.num_channels < 3); + } else { + JxlColorEncodingSetToSRGB(&color_encoding, + /*is_gray=*/pixel_format.num_channels < 3); + } + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetColorEncoding(enc, &color_encoding)); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc, nullptr); + JxlEncoderSetFrameLossless(frame_settings, false); + if (index_frames == 1) { + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption(frame_settings, + JXL_ENC_FRAME_INDEX_BOX, 1)); + } + + size_t oneframesize = original_bytes.size() / nb_frames; + JxlFrameHeader frame_header; + JxlEncoderInitFrameHeader(&frame_header); + frame_header.duration = 1; + frame_header.is_last = JXL_FALSE; + + for (size_t i = 0; i < nb_frames; i++) { + if (i + 1 == nb_frames) frame_header.is_last = JXL_TRUE; + JxlEncoderSetFrameHeader(frame_settings, &frame_header); + EXPECT_EQ( + JXL_ENC_SUCCESS, + JxlEncoderAddImageFrame( + frame_settings, &pixel_format, + (void*)(original_bytes.data() + oneframesize * i), oneframesize)); + } + JxlEncoderCloseInput(enc); + + std::vector<uint8_t> compressed; + EncodeWithEncoder(enc, &compressed); + JxlEncoderDestroy(enc); + + JxlDecoder* dec = JxlDecoderCreate(nullptr); + EXPECT_NE(nullptr, dec); + + const uint8_t* next_in = compressed.data(); + size_t avail_in = compressed.size(); + + if (index_frames == 0) { + compressed_size = avail_in; + } else { + // a non-empty jxli box should be added + EXPECT_LE(avail_in, compressed_size + 50); + EXPECT_GE(avail_in, compressed_size + 10); + } + + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderSubscribeEvents(dec, JXL_DEC_BASIC_INFO | + JXL_DEC_COLOR_ENCODING | + JXL_DEC_FULL_IMAGE)); + + JxlDecoderSetInput(dec, next_in, avail_in); + EXPECT_EQ(JXL_DEC_BASIC_INFO, JxlDecoderProcessInput(dec)); + size_t buffer_size; + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderImageOutBufferSize(dec, &pixel_format, &buffer_size)); + EXPECT_EQ(buffer_size, oneframesize); + + JxlBasicInfo info; + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderGetBasicInfo(dec, &info)); + EXPECT_EQ(xsize, info.xsize); + EXPECT_EQ(ysize, info.ysize); + + EXPECT_EQ(JXL_DEC_COLOR_ENCODING, JxlDecoderProcessInput(dec)); + + size_t icc_profile_size; + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderGetICCProfileSize(dec, JXL_COLOR_PROFILE_TARGET_DATA, + &icc_profile_size)); + std::vector<uint8_t> icc_profile(icc_profile_size); + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderGetColorAsICCProfile( + dec, JXL_COLOR_PROFILE_TARGET_DATA, + icc_profile.data(), icc_profile.size())); + + std::vector<uint8_t> decoded_bytes(buffer_size * nb_frames); + + EXPECT_EQ(JXL_DEC_NEED_IMAGE_OUT_BUFFER, JxlDecoderProcessInput(dec)); + + for (size_t i = 0; i < nb_frames; i++) { + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderSetImageOutBuffer( + dec, &pixel_format, decoded_bytes.data() + i * oneframesize, + buffer_size)); + + EXPECT_EQ(JXL_DEC_FULL_IMAGE, JxlDecoderProcessInput(dec)); + } + JxlDecoderDestroy(dec); + jxl::CodecInOut decoded_io = + ConvertTestImage(decoded_bytes, xsize, ysize * nb_frames, pixel_format, + jxl::Bytes(icc_profile)); + + jxl::ButteraugliParams ba; + float butteraugli_score = ButteraugliDistance( + original_io.frames, decoded_io.frames, ba, *JxlGetDefaultCms(), + /*distmap=*/nullptr, nullptr); + EXPECT_LE(butteraugli_score, 1.0f); + } +} + +static const unsigned char kEncodedTestProfile[] = { + 0x1f, 0x8b, 0x1, 0x13, 0x10, 0x0, 0x0, 0x0, 0x20, 0x4c, 0xcc, 0x3, + 0xe7, 0xa0, 0xa5, 0xa2, 0x90, 0xa4, 0x27, 0xe8, 0x79, 0x1d, 0xe3, 0x26, + 0x57, 0x54, 0xef, 0x0, 0xe8, 0x97, 0x2, 0xce, 0xa1, 0xd7, 0x85, 0x16, + 0xb4, 0x29, 0x94, 0x58, 0xf2, 0x56, 0xc0, 0x76, 0xea, 0x23, 0xec, 0x7c, + 0x73, 0x51, 0x41, 0x40, 0x23, 0x21, 0x95, 0x4, 0x75, 0x12, 0xc9, 0xcc, + 0x16, 0xbd, 0xb6, 0x99, 0xad, 0xf8, 0x75, 0x35, 0xb6, 0x42, 0xae, 0xae, + 0xae, 0x86, 0x56, 0xf8, 0xcc, 0x16, 0x30, 0xb3, 0x45, 0xad, 0xd, 0x40, + 0xd6, 0xd1, 0xd6, 0x99, 0x40, 0xbe, 0xe2, 0xdc, 0x31, 0x7, 0xa6, 0xb9, + 0x27, 0x92, 0x38, 0x0, 0x3, 0x5e, 0x2c, 0xbe, 0xe6, 0xfb, 0x19, 0xbf, + 0xf3, 0x6d, 0xbc, 0x4d, 0x64, 0xe5, 0xba, 0x76, 0xde, 0x31, 0x65, 0x66, + 0x14, 0xa6, 0x3a, 0xc5, 0x8f, 0xb1, 0xb4, 0xba, 0x1f, 0xb1, 0xb8, 0xd4, + 0x75, 0xba, 0x18, 0x86, 0x95, 0x3c, 0x26, 0xf6, 0x25, 0x62, 0x53, 0xfd, + 0x9c, 0x94, 0x76, 0xf6, 0x95, 0x2c, 0xb1, 0xfd, 0xdc, 0xc0, 0xe4, 0x3f, + 0xb3, 0xff, 0x67, 0xde, 0xd5, 0x94, 0xcc, 0xb0, 0x83, 0x2f, 0x28, 0x93, + 0x92, 0x3, 0xa1, 0x41, 0x64, 0x60, 0x62, 0x70, 0x80, 0x87, 0xaf, 0xe7, + 0x60, 0x4a, 0x20, 0x23, 0xb3, 0x11, 0x7, 0x38, 0x38, 0xd4, 0xa, 0x66, + 0xb5, 0x93, 0x41, 0x90, 0x19, 0x17, 0x18, 0x60, 0xa5, 0xb, 0x7a, 0x24, + 0xaa, 0x20, 0x81, 0xac, 0xa9, 0xa1, 0x70, 0xa6, 0x12, 0x8a, 0x4a, 0xa3, + 0xa0, 0xf9, 0x9a, 0x97, 0xe7, 0xa8, 0xac, 0x8, 0xa8, 0xc4, 0x2a, 0x86, + 0xa7, 0x69, 0x1e, 0x67, 0xe6, 0xbe, 0xa4, 0xd3, 0xff, 0x91, 0x61, 0xf6, + 0x8a, 0xe6, 0xb5, 0xb3, 0x61, 0x9f, 0x19, 0x17, 0x98, 0x27, 0x6b, 0xe9, + 0x8, 0x98, 0xe1, 0x21, 0x4a, 0x9, 0xb5, 0xd7, 0xca, 0xfa, 0x94, 0xd0, + 0x69, 0x1a, 0xeb, 0x52, 0x1, 0x4e, 0xf5, 0xf6, 0xdf, 0x7f, 0xe7, 0x29, + 0x70, 0xee, 0x4, 0xda, 0x2f, 0xa4, 0xff, 0xfe, 0xbb, 0x6f, 0xa8, 0xff, + 0xfe, 0xdb, 0xaf, 0x8, 0xf6, 0x72, 0xa1, 0x40, 0x5d, 0xf0, 0x2d, 0x8, + 0x82, 0x5b, 0x87, 0xbd, 0x10, 0x8, 0xe9, 0x7, 0xee, 0x4b, 0x80, 0xda, + 0x4a, 0x4, 0xc5, 0x5e, 0xa0, 0xb7, 0x1e, 0x60, 0xb0, 0x59, 0x76, 0x60, + 0xb, 0x2e, 0x19, 0x8a, 0x2e, 0x1c, 0xe6, 0x6, 0x20, 0xb8, 0x64, 0x18, + 0x2a, 0xcf, 0x51, 0x94, 0xd4, 0xee, 0xc3, 0xfe, 0x39, 0x74, 0xd4, 0x2b, + 0x48, 0xc9, 0x83, 0x4c, 0x9b, 0xd0, 0x4c, 0x35, 0x10, 0xe3, 0x9, 0xf7, + 0x72, 0xf0, 0x7a, 0xe, 0xbf, 0x7d, 0x36, 0x2e, 0x19, 0x7e, 0x3f, 0xc, + 0xf7, 0x93, 0xe7, 0xf4, 0x1d, 0x32, 0xc6, 0xb0, 0x89, 0xad, 0xe0, 0x28, + 0xc1, 0xa7, 0x59, 0xe3, 0x0, +}; + +TEST(RoundtripTest, TestICCProfile) { + // JxlEncoderSetICCProfile parses the ICC profile, so a valid profile is + // needed. The profile should be passed correctly through the roundtrip. + jxl::BitReader reader( + jxl::Bytes(kEncodedTestProfile, sizeof(kEncodedTestProfile))); + std::vector<uint8_t> icc; + ASSERT_TRUE(jxl::test::ReadICC(&reader, &icc)); + ASSERT_TRUE(reader.Close()); + + JxlPixelFormat format = + JxlPixelFormat{3, JXL_TYPE_UINT8, JXL_NATIVE_ENDIAN, 0}; + + size_t xsize = 25; + size_t ysize = 37; + const std::vector<uint8_t> original_bytes = + GetTestImage<uint8_t>(xsize, ysize, format); + + JxlEncoder* enc = JxlEncoderCreate(nullptr); + EXPECT_NE(nullptr, enc); + + JxlBasicInfo basic_info; + jxl::test::JxlBasicInfoSetFromPixelFormat(&basic_info, &format); + basic_info.xsize = xsize; + basic_info.ysize = ysize; + basic_info.uses_original_profile = JXL_TRUE; + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc, &basic_info)); + + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetICCProfile(enc, icc.data(), icc.size())); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc, nullptr); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderAddImageFrame(frame_settings, &format, + (void*)original_bytes.data(), + original_bytes.size())); + JxlEncoderCloseInput(enc); + + std::vector<uint8_t> compressed; + EncodeWithEncoder(enc, &compressed); + JxlEncoderDestroy(enc); + + JxlDecoder* dec = JxlDecoderCreate(nullptr); + EXPECT_NE(nullptr, dec); + + const uint8_t* next_in = compressed.data(); + size_t avail_in = compressed.size(); + + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderSubscribeEvents(dec, JXL_DEC_BASIC_INFO | + JXL_DEC_COLOR_ENCODING | + JXL_DEC_FULL_IMAGE)); + + JxlDecoderSetInput(dec, next_in, avail_in); + EXPECT_EQ(JXL_DEC_BASIC_INFO, JxlDecoderProcessInput(dec)); + size_t buffer_size; + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderImageOutBufferSize(dec, &format, &buffer_size)); + EXPECT_EQ(buffer_size, original_bytes.size()); + + JxlBasicInfo info; + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderGetBasicInfo(dec, &info)); + EXPECT_EQ(xsize, info.xsize); + EXPECT_EQ(ysize, info.ysize); + + EXPECT_EQ(JXL_DEC_COLOR_ENCODING, JxlDecoderProcessInput(dec)); + + size_t dec_icc_size; + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderGetICCProfileSize(dec, JXL_COLOR_PROFILE_TARGET_ORIGINAL, + &dec_icc_size)); + EXPECT_EQ(icc.size(), dec_icc_size); + std::vector<uint8_t> dec_icc(dec_icc_size); + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderGetColorAsICCProfile( + dec, JXL_COLOR_PROFILE_TARGET_ORIGINAL, + dec_icc.data(), dec_icc.size())); + + std::vector<uint8_t> decoded_bytes(buffer_size); + + EXPECT_EQ(JXL_DEC_NEED_IMAGE_OUT_BUFFER, JxlDecoderProcessInput(dec)); + + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderSetImageOutBuffer(dec, &format, decoded_bytes.data(), + decoded_bytes.size())); + + EXPECT_EQ(JXL_DEC_FULL_IMAGE, JxlDecoderProcessInput(dec)); + + EXPECT_EQ(icc, dec_icc); + + JxlDecoderDestroy(dec); +} + +TEST(RoundtripTest, JXL_TRANSCODE_JPEG_TEST(TestJPEGReconstruction)) { + TEST_LIBJPEG_SUPPORT(); + const std::string jpeg_path = "jxl/flower/flower.png.im_q85_420.jpg"; + const std::vector<uint8_t> orig = jxl::test::ReadTestData(jpeg_path); + jxl::CodecInOut orig_io; + ASSERT_TRUE(SetFromBytes(jxl::Bytes(orig), &orig_io, /*pool=*/nullptr)); + + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderUseContainer(enc.get(), JXL_TRUE)); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderStoreJPEGMetadata(enc.get(), JXL_TRUE)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderAddJPEGFrame(frame_settings, orig.data(), orig.size())); + JxlEncoderCloseInput(enc.get()); + + std::vector<uint8_t> compressed; + EncodeWithEncoder(enc.get(), &compressed); + + JxlDecoderPtr dec = JxlDecoderMake(nullptr); + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderSubscribeEvents( + dec.get(), JXL_DEC_JPEG_RECONSTRUCTION | JXL_DEC_FULL_IMAGE)); + JxlDecoderSetInput(dec.get(), compressed.data(), compressed.size()); + EXPECT_EQ(JXL_DEC_JPEG_RECONSTRUCTION, JxlDecoderProcessInput(dec.get())); + std::vector<uint8_t> reconstructed_buffer(128); + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderSetJPEGBuffer(dec.get(), reconstructed_buffer.data(), + reconstructed_buffer.size())); + size_t used = 0; + JxlDecoderStatus dec_process_result = JXL_DEC_JPEG_NEED_MORE_OUTPUT; + while (dec_process_result == JXL_DEC_JPEG_NEED_MORE_OUTPUT) { + used = reconstructed_buffer.size() - JxlDecoderReleaseJPEGBuffer(dec.get()); + reconstructed_buffer.resize(reconstructed_buffer.size() * 2); + EXPECT_EQ( + JXL_DEC_SUCCESS, + JxlDecoderSetJPEGBuffer(dec.get(), reconstructed_buffer.data() + used, + reconstructed_buffer.size() - used)); + dec_process_result = JxlDecoderProcessInput(dec.get()); + } + ASSERT_EQ(JXL_DEC_FULL_IMAGE, dec_process_result); + used = reconstructed_buffer.size() - JxlDecoderReleaseJPEGBuffer(dec.get()); + ASSERT_EQ(used, orig.size()); + EXPECT_EQ(0, memcmp(reconstructed_buffer.data(), orig.data(), used)); +} |