diff options
Diffstat (limited to 'media/libjxl/src/lib/jxl/encode_test.cc')
| -rw-r--r-- | media/libjxl/src/lib/jxl/encode_test.cc | 1370 |
1 files changed, 1370 insertions, 0 deletions
diff --git a/media/libjxl/src/lib/jxl/encode_test.cc b/media/libjxl/src/lib/jxl/encode_test.cc new file mode 100644 index 0000000000..e569e212f5 --- /dev/null +++ b/media/libjxl/src/lib/jxl/encode_test.cc @@ -0,0 +1,1370 @@ +// 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/encode.h" + +#include "enc_color_management.h" +#include "gtest/gtest.h" +#include "jxl/decode.h" +#include "jxl/decode_cxx.h" +#include "jxl/encode_cxx.h" +#include "lib/extras/codec.h" +#include "lib/jxl/dec_file.h" +#include "lib/jxl/enc_butteraugli_pnorm.h" +#include "lib/jxl/encode_internal.h" +#include "lib/jxl/jpeg/dec_jpeg_data.h" +#include "lib/jxl/jpeg/dec_jpeg_data_writer.h" +#include "lib/jxl/test_utils.h" +#include "lib/jxl/testdata.h" + +TEST(EncodeTest, AddFrameAfterCloseInputTest) { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + + JxlEncoderCloseInput(enc.get()); + + size_t xsize = 64; + size_t ysize = 64; + JxlPixelFormat pixel_format = {4, JXL_TYPE_UINT16, JXL_BIG_ENDIAN, 0}; + std::vector<uint8_t> pixels = jxl::test::GetSomeTestImage(xsize, ysize, 4, 0); + + jxl::CodecInOut input_io = + jxl::test::SomeTestImageToCodecInOut(pixels, 4, xsize, ysize); + + 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.get(), 10)); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc.get(), &basic_info)); + JxlColorEncoding color_encoding; + JxlColorEncodingSetToSRGB(&color_encoding, + /*is_gray=*/pixel_format.num_channels < 3); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetColorEncoding(enc.get(), &color_encoding)); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ(JXL_ENC_ERROR, + JxlEncoderAddImageFrame(frame_settings, &pixel_format, + pixels.data(), pixels.size())); +} + +TEST(EncodeTest, AddJPEGAfterCloseTest) { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + + JxlEncoderCloseInput(enc.get()); + + const std::string jpeg_path = + "third_party/imagecompression.info/flower_foveon.png.im_q85_420.jpg"; + const jxl::PaddedBytes orig = jxl::ReadTestData(jpeg_path); + + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + + EXPECT_EQ(JXL_ENC_ERROR, + JxlEncoderAddJPEGFrame(frame_settings, orig.data(), orig.size())); +} + +TEST(EncodeTest, AddFrameBeforeColorEncodingTest) { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + + size_t xsize = 64; + size_t ysize = 64; + JxlPixelFormat pixel_format = {4, JXL_TYPE_UINT16, JXL_BIG_ENDIAN, 0}; + std::vector<uint8_t> pixels = jxl::test::GetSomeTestImage(xsize, ysize, 4, 0); + + jxl::CodecInOut input_io = + jxl::test::SomeTestImageToCodecInOut(pixels, 4, xsize, ysize); + + JxlBasicInfo basic_info; + jxl::test::JxlBasicInfoSetFromPixelFormat(&basic_info, &pixel_format); + basic_info.xsize = xsize; + basic_info.ysize = ysize; + basic_info.uses_original_profile = true; + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetCodestreamLevel(enc.get(), 10)); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc.get(), &basic_info)); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ(JXL_ENC_ERROR, + JxlEncoderAddImageFrame(frame_settings, &pixel_format, + pixels.data(), pixels.size())); +} + +TEST(EncodeTest, AddFrameBeforeBasicInfoTest) { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + + size_t xsize = 64; + size_t ysize = 64; + JxlPixelFormat pixel_format = {4, JXL_TYPE_UINT16, JXL_BIG_ENDIAN, 0}; + std::vector<uint8_t> pixels = jxl::test::GetSomeTestImage(xsize, ysize, 4, 0); + + jxl::CodecInOut input_io = + jxl::test::SomeTestImageToCodecInOut(pixels, 4, xsize, ysize); + + JxlColorEncoding color_encoding; + JxlColorEncodingSetToSRGB(&color_encoding, + /*is_gray=*/pixel_format.num_channels < 3); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetColorEncoding(enc.get(), &color_encoding)); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ(JXL_ENC_ERROR, + JxlEncoderAddImageFrame(frame_settings, &pixel_format, + pixels.data(), pixels.size())); +} + +TEST(EncodeTest, DefaultAllocTest) { + JxlEncoder* enc = JxlEncoderCreate(nullptr); + EXPECT_NE(nullptr, enc); + JxlEncoderDestroy(enc); +} + +TEST(EncodeTest, CustomAllocTest) { + struct CalledCounters { + int allocs = 0; + int frees = 0; + } counters; + + JxlMemoryManager mm; + mm.opaque = &counters; + mm.alloc = [](void* opaque, size_t size) { + reinterpret_cast<CalledCounters*>(opaque)->allocs++; + return malloc(size); + }; + mm.free = [](void* opaque, void* address) { + reinterpret_cast<CalledCounters*>(opaque)->frees++; + free(address); + }; + + { + JxlEncoderPtr enc = JxlEncoderMake(&mm); + EXPECT_NE(nullptr, enc.get()); + EXPECT_LE(1, counters.allocs); + EXPECT_EQ(0, counters.frees); + } + EXPECT_LE(1, counters.frees); +} + +TEST(EncodeTest, DefaultParallelRunnerTest) { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetParallelRunner(enc.get(), nullptr, nullptr)); +} + +void VerifyFrameEncoding(size_t xsize, size_t ysize, JxlEncoder* enc, + const JxlEncoderFrameSettings* frame_settings) { + JxlPixelFormat pixel_format = {4, JXL_TYPE_UINT16, JXL_BIG_ENDIAN, 0}; + std::vector<uint8_t> pixels = jxl::test::GetSomeTestImage(xsize, ysize, 4, 0); + + jxl::CodecInOut input_io = + jxl::test::SomeTestImageToCodecInOut(pixels, 4, xsize, ysize); + + JxlBasicInfo basic_info; + jxl::test::JxlBasicInfoSetFromPixelFormat(&basic_info, &pixel_format); + basic_info.xsize = xsize; + basic_info.ysize = ysize; + if (frame_settings->values.lossless) { + basic_info.uses_original_profile = true; + } else { + basic_info.uses_original_profile = false; + } + // 16-bit alpha means this requires level 10 + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetCodestreamLevel(enc, 10)); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc, &basic_info)); + JxlColorEncoding color_encoding; + JxlColorEncodingSetToSRGB(&color_encoding, + /*is_gray=*/pixel_format.num_channels < 3); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetColorEncoding(enc, &color_encoding)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderAddImageFrame(frame_settings, &pixel_format, + pixels.data(), pixels.size())); + JxlEncoderCloseInput(enc); + + std::vector<uint8_t> compressed = std::vector<uint8_t>(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); + jxl::DecompressParams dparams; + jxl::CodecInOut decoded_io; + EXPECT_TRUE(jxl::DecodeFile( + dparams, jxl::Span<const uint8_t>(compressed.data(), compressed.size()), + &decoded_io, /*pool=*/nullptr)); + + EXPECT_LE( + ComputeDistance2(input_io.Main(), decoded_io.Main(), jxl::GetJxlCms()), +#if JXL_HIGH_PRECISION + 1.8); +#else + 4.8); +#endif +} + +void VerifyFrameEncoding(JxlEncoder* enc, + const JxlEncoderFrameSettings* frame_settings) { + VerifyFrameEncoding(63, 129, enc, frame_settings); +} + +TEST(EncodeTest, FrameEncodingTest) { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + VerifyFrameEncoding(enc.get(), + JxlEncoderFrameSettingsCreate(enc.get(), nullptr)); +} + +TEST(EncodeTest, EncoderResetTest) { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + VerifyFrameEncoding(50, 200, enc.get(), + JxlEncoderFrameSettingsCreate(enc.get(), nullptr)); + // Encoder should become reusable for a new image from scratch after using + // reset. + JxlEncoderReset(enc.get()); + VerifyFrameEncoding(157, 77, enc.get(), + JxlEncoderFrameSettingsCreate(enc.get(), nullptr)); +} + +TEST(EncodeTest, CmsTest) { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + bool cms_called = false; + JxlCmsInterface cms = jxl::GetJxlCms(); + struct InitData { + void* original_init_data; + jpegxl_cms_init_func original_init; + bool* cms_called; + }; + InitData init_data = {/*original_init_data=*/cms.init_data, + /*original_init=*/cms.init, + /*cms_called=*/&cms_called}; + cms.init_data = &init_data; + cms.init = +[](void* raw_init_data, size_t num_threads, + size_t pixels_per_thread, const JxlColorProfile* input_profile, + const JxlColorProfile* output_profile, + float intensity_target) { + const InitData* init_data = static_cast<const InitData*>(raw_init_data); + *init_data->cms_called = true; + return init_data->original_init(init_data->original_init_data, num_threads, + pixels_per_thread, input_profile, + output_profile, intensity_target); + }; + JxlEncoderSetCms(enc.get(), cms); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), nullptr); + JxlEncoderSetFrameLossless(frame_settings, false); + ASSERT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption(frame_settings, + JXL_ENC_FRAME_SETTING_EFFORT, 8)); + VerifyFrameEncoding(enc.get(), frame_settings); + EXPECT_TRUE(cms_called); +} + +TEST(EncodeTest, frame_settingsTest) { + { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_EFFORT, 5)); + VerifyFrameEncoding(enc.get(), frame_settings); + EXPECT_EQ(jxl::SpeedTier::kHare, enc->last_used_cparams.speed_tier); + } + + { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + // Lower than currently supported values + EXPECT_EQ(JXL_ENC_ERROR, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_EFFORT, 0)); + // Higher than currently supported values + EXPECT_EQ(JXL_ENC_ERROR, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_EFFORT, 10)); + } + + { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetFrameLossless(frame_settings, JXL_TRUE)); + VerifyFrameEncoding(enc.get(), frame_settings); + EXPECT_EQ(true, enc->last_used_cparams.IsLossless()); + } + + { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetFrameDistance(frame_settings, 0.5)); + VerifyFrameEncoding(enc.get(), frame_settings); + EXPECT_EQ(0.5, enc->last_used_cparams.butteraugli_distance); + } + + { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + // Disallowed negative distance + EXPECT_EQ(JXL_ENC_ERROR, JxlEncoderSetFrameDistance(frame_settings, -1)); + } + + { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_DECODING_SPEED, 2)); + VerifyFrameEncoding(enc.get(), frame_settings); + EXPECT_EQ(2u, enc->last_used_cparams.decoding_speed_tier); + } + + { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ(JXL_ENC_ERROR, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_GROUP_ORDER, 100)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_GROUP_ORDER, 1)); + EXPECT_EQ( + JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_GROUP_ORDER_CENTER_X, 5)); + VerifyFrameEncoding(enc.get(), frame_settings); + EXPECT_EQ(true, enc->last_used_cparams.centerfirst); + EXPECT_EQ(5, enc->last_used_cparams.center_x); + } + + { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_RESPONSIVE, 0)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_PROGRESSIVE_AC, 1)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_QPROGRESSIVE_AC, -1)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_PROGRESSIVE_DC, 2)); + VerifyFrameEncoding(enc.get(), frame_settings); + EXPECT_EQ(false, enc->last_used_cparams.responsive); + EXPECT_EQ(true, enc->last_used_cparams.progressive_mode); + EXPECT_EQ(2, enc->last_used_cparams.progressive_dc); + } + + { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_PHOTON_NOISE, 1777)); + VerifyFrameEncoding(enc.get(), frame_settings); + EXPECT_EQ(1777.0f, enc->last_used_cparams.photon_noise_iso); + } + + { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, + JXL_ENC_FRAME_SETTING_CHANNEL_COLORS_GLOBAL_PERCENT, 55)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, + JXL_ENC_FRAME_SETTING_CHANNEL_COLORS_GROUP_PERCENT, 25)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_PALETTE_COLORS, 70000)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_LOSSY_PALETTE, 1)); + VerifyFrameEncoding(enc.get(), frame_settings); + EXPECT_EQ(55.0f, + enc->last_used_cparams.channel_colors_pre_transform_percent); + EXPECT_EQ(25.0f, enc->last_used_cparams.channel_colors_percent); + EXPECT_EQ(70000, enc->last_used_cparams.palette_colors); + EXPECT_EQ(true, enc->last_used_cparams.lossy_palette); + } + + { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ( + JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_MODULAR_COLOR_SPACE, 30)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_MODULAR_GROUP_SIZE, 2)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_MODULAR_PREDICTOR, 14)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, + JXL_ENC_FRAME_SETTING_MODULAR_MA_TREE_LEARNING_PERCENT, 77)); + EXPECT_EQ( + JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_MODULAR_NB_PREV_CHANNELS, 7)); + VerifyFrameEncoding(enc.get(), frame_settings); + // It was set to 30, but becomes 32 because in the C++ implementation, the + // numerical RCT values are shifted 2 compared to the specification. The + // API uses the values seen in the JXL specification. + EXPECT_EQ(32, enc->last_used_cparams.colorspace); + EXPECT_EQ(2, enc->last_used_cparams.modular_group_size_shift); + EXPECT_EQ(jxl::Predictor::Best, enc->last_used_cparams.options.predictor); + EXPECT_EQ(0.77f, enc->last_used_cparams.options.nb_repeats); + EXPECT_EQ(7, enc->last_used_cparams.options.max_properties); + } + + { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_JPEG_RECON_CFL, 0)); + VerifyFrameEncoding(enc.get(), frame_settings); + EXPECT_EQ(false, enc->last_used_cparams.force_cfl_jpeg_recompression); + } + + { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderFrameSettingsSetOption( + frame_settings, JXL_ENC_FRAME_SETTING_JPEG_RECON_CFL, 1)); + VerifyFrameEncoding(enc.get(), frame_settings); + EXPECT_EQ(true, enc->last_used_cparams.force_cfl_jpeg_recompression); + } +} + +namespace { +// Returns a copy of buf from offset to offset+size, or a new zeroed vector if +// the result would have been out of bounds taking integer overflow into +// account. +const std::vector<uint8_t> SliceSpan(const jxl::Span<const uint8_t>& buf, + size_t offset, size_t size) { + if (offset + size >= buf.size()) { + return std::vector<uint8_t>(size, 0); + } + if (offset + size < offset) { + return std::vector<uint8_t>(size, 0); + } + return std::vector<uint8_t>(buf.data() + offset, buf.data() + offset + size); +} + +struct Box { + // The type of the box. + // If "uuid", use extended_type instead + char type[4] = {0, 0, 0, 0}; + + // The extended_type is only used when type == "uuid". + // Extended types are not used in JXL. However, the box format itself + // supports this so they are handled correctly. + char extended_type[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; + + // Box data. + jxl::Span<const uint8_t> data = jxl::Span<const uint8_t>(nullptr, 0); + + // If the size is not given, the datasize extends to the end of the file. + // If this field is false, the size field is not encoded when the box is + // serialized. + bool data_size_given = true; + + // If successful, returns true and sets `in` to be the rest data (if any). + // If `in` contains a box with a size larger than `in.size()`, will not + // modify `in`, and will return true but the data `Span<uint8_t>` will + // remain set to nullptr. + // If unsuccessful, returns error and doesn't modify `in`. + jxl::Status Decode(jxl::Span<const uint8_t>* in) { + // Total box_size including this header itself. + uint64_t box_size = LoadBE32(SliceSpan(*in, 0, 4).data()); + size_t pos = 4; + + memcpy(type, SliceSpan(*in, pos, 4).data(), 4); + pos += 4; + + if (box_size == 1) { + // If the size is 1, it indicates extended size read from 64-bit integer. + box_size = LoadBE64(SliceSpan(*in, pos, 8).data()); + pos += 8; + } + + if (!memcmp("uuid", type, 4)) { + memcpy(extended_type, SliceSpan(*in, pos, 16).data(), 16); + pos += 16; + } + + // This is the end of the box header, the box data begins here. Handle + // the data size now. + const size_t header_size = pos; + + if (box_size != 0) { + if (box_size < header_size) { + return JXL_FAILURE("Invalid box size"); + } + if (box_size > in->size()) { + // The box is fine, but the input is too short. + return true; + } + data_size_given = true; + data = jxl::Span<const uint8_t>(in->data() + header_size, + box_size - header_size); + } else { + data_size_given = false; + data = jxl::Span<const uint8_t>(in->data() + header_size, + in->size() - header_size); + } + + *in = jxl::Span<const uint8_t>(in->data() + header_size + data.size(), + in->size() - header_size - data.size()); + return true; + } +}; + +struct Container { + std::vector<Box> boxes; + + // If successful, returns true and sets `in` to be the rest data (if any). + // If unsuccessful, returns error and doesn't modify `in`. + jxl::Status Decode(jxl::Span<const uint8_t>* in) { + boxes.clear(); + + Box signature_box; + JXL_RETURN_IF_ERROR(signature_box.Decode(in)); + if (memcmp("JXL ", signature_box.type, 4) != 0) { + return JXL_FAILURE("Invalid magic signature"); + } + if (signature_box.data.size() != 4) + return JXL_FAILURE("Invalid magic signature"); + if (signature_box.data[0] != 0xd || signature_box.data[1] != 0xa || + signature_box.data[2] != 0x87 || signature_box.data[3] != 0xa) { + return JXL_FAILURE("Invalid magic signature"); + } + + Box ftyp_box; + JXL_RETURN_IF_ERROR(ftyp_box.Decode(in)); + if (memcmp("ftyp", ftyp_box.type, 4) != 0) { + return JXL_FAILURE("Invalid ftyp"); + } + if (ftyp_box.data.size() != 12) return JXL_FAILURE("Invalid ftyp"); + const char* expected = "jxl \0\0\0\0jxl "; + if (memcmp(expected, ftyp_box.data.data(), 12) != 0) + return JXL_FAILURE("Invalid ftyp"); + + while (!in->empty()) { + Box box = {}; + JXL_RETURN_IF_ERROR(box.Decode(in)); + if (box.data.data() == nullptr) { + // The decoding encountered a box, but not enough data yet. + return true; + } + boxes.emplace_back(box); + } + + return true; + } +}; + +} // namespace + +TEST(EncodeTest, SingleFrameBoundedJXLCTest) { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderUseContainer(enc.get(), true)); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + + size_t xsize = 71; + size_t ysize = 23; + JxlPixelFormat pixel_format = {4, JXL_TYPE_UINT16, JXL_BIG_ENDIAN, 0}; + std::vector<uint8_t> pixels = jxl::test::GetSomeTestImage(xsize, ysize, 4, 0); + + 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.get(), 10)); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc.get(), &basic_info)); + JxlColorEncoding color_encoding; + JxlColorEncodingSetToSRGB(&color_encoding, + /*is_gray=*/false); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetColorEncoding(enc.get(), &color_encoding)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderAddImageFrame(frame_settings, &pixel_format, + pixels.data(), pixels.size())); + JxlEncoderCloseInput(enc.get()); + + std::vector<uint8_t> compressed = std::vector<uint8_t>(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.get(), &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); + + Container container = {}; + jxl::Span<const uint8_t> encoded_span = + jxl::Span<const uint8_t>(compressed.data(), compressed.size()); + EXPECT_TRUE(container.Decode(&encoded_span)); + EXPECT_EQ(0u, encoded_span.size()); + bool found_jxlc = false; + bool found_jxlp = false; + // The encoder is allowed to either emit a jxlc or one or more jxlp. + for (size_t i = 0; i < container.boxes.size(); ++i) { + if (memcmp("jxlc", container.boxes[i].type, 4) == 0) { + EXPECT_EQ(false, found_jxlc); // Max 1 jxlc + EXPECT_EQ(false, found_jxlp); // Can't mix jxlc and jxlp + found_jxlc = true; + } + if (memcmp("jxlp", container.boxes[i].type, 4) == 0) { + EXPECT_EQ(false, found_jxlc); // Can't mix jxlc and jxlp + found_jxlp = true; + } + // The encoder shouldn't create an unbounded box in this case, with the + // single frame it knows the full size in time, so can help make decoding + // more efficient by giving the full box size of the final box. + EXPECT_EQ(true, container.boxes[i].data_size_given); + } + EXPECT_EQ(true, found_jxlc || found_jxlp); +} + +TEST(EncodeTest, CodestreamLevelTest) { + size_t xsize = 64; + size_t ysize = 64; + JxlPixelFormat pixel_format = {4, JXL_TYPE_UINT16, JXL_BIG_ENDIAN, 0}; + std::vector<uint8_t> pixels = jxl::test::GetSomeTestImage(xsize, ysize, 4, 0); + + jxl::CodecInOut input_io = + jxl::test::SomeTestImageToCodecInOut(pixels, 4, xsize, ysize); + + JxlBasicInfo basic_info; + jxl::test::JxlBasicInfoSetFromPixelFormat(&basic_info, &pixel_format); + basic_info.xsize = xsize; + basic_info.ysize = ysize; + basic_info.uses_original_profile = false; + + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetCodestreamLevel(enc.get(), 10)); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc.get(), &basic_info)); + JxlColorEncoding color_encoding; + JxlColorEncodingSetToSRGB(&color_encoding, + /*is_gray=*/pixel_format.num_channels < 3); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetColorEncoding(enc.get(), &color_encoding)); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderAddImageFrame(frame_settings, &pixel_format, + pixels.data(), pixels.size())); + JxlEncoderCloseInput(enc.get()); + + std::vector<uint8_t> compressed = std::vector<uint8_t>(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.get(), &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); + + Container container = {}; + jxl::Span<const uint8_t> encoded_span = + jxl::Span<const uint8_t>(compressed.data(), compressed.size()); + EXPECT_TRUE(container.Decode(&encoded_span)); + EXPECT_EQ(0u, encoded_span.size()); + EXPECT_EQ(0, memcmp("jxll", container.boxes[0].type, 4)); +} + +TEST(EncodeTest, CodestreamLevelVerificationTest) { + JxlPixelFormat pixel_format = {4, JXL_TYPE_UINT8, JXL_BIG_ENDIAN, 0}; + + JxlBasicInfo basic_info; + jxl::test::JxlBasicInfoSetFromPixelFormat(&basic_info, &pixel_format); + basic_info.xsize = 64; + basic_info.ysize = 64; + basic_info.uses_original_profile = false; + + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc.get(), &basic_info)); + + EXPECT_EQ(5, JxlEncoderGetRequiredCodestreamLevel(enc.get())); + + // Set an image dimension that is too large for level 5, but fits in level 10 + + basic_info.xsize = 1ull << 30ull; + EXPECT_EQ(JXL_ENC_ERROR, JxlEncoderSetBasicInfo(enc.get(), &basic_info)); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetCodestreamLevel(enc.get(), 10)); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc.get(), &basic_info)); + EXPECT_EQ(10, JxlEncoderGetRequiredCodestreamLevel(enc.get())); + + // Set an image dimension that is too large even for level 10 + + basic_info.xsize = 1ull << 31ull; + EXPECT_EQ(JXL_ENC_ERROR, JxlEncoderSetBasicInfo(enc.get(), &basic_info)); +} + +TEST(EncodeTest, JXL_TRANSCODE_JPEG_TEST(JPEGReconstructionTest)) { + const std::string jpeg_path = + "third_party/imagecompression.info/flower_foveon.png.im_q85_420.jpg"; + const jxl::PaddedBytes orig = jxl::ReadTestData(jpeg_path); + + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + + 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 = std::vector<uint8_t>(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.get(), &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); + + Container container = {}; + jxl::Span<const uint8_t> encoded_span = + jxl::Span<const uint8_t>(compressed.data(), compressed.size()); + EXPECT_TRUE(container.Decode(&encoded_span)); + EXPECT_EQ(0u, encoded_span.size()); + bool found_jbrd = false; + bool found_jxlc = false; + bool found_jxlp = false; + size_t jbrd_index = 0; + std::vector<uint8_t> codestream_bytes; + // The encoder is allowed to either emit a jxlc or one or more jxlp. + for (size_t i = 0; i < container.boxes.size(); ++i) { + if (memcmp("jbrd", container.boxes[i].type, 4) == 0) { + EXPECT_EQ(false, found_jxlc); // Max 1 jbrd + found_jbrd = true; + jbrd_index = i; + } + if (memcmp("jxlc", container.boxes[i].type, 4) == 0) { + EXPECT_EQ(false, found_jxlc); // Max 1 jxlc + EXPECT_EQ(false, found_jxlp); // Can't mix jxlc and jxlp + found_jxlc = true; + codestream_bytes.insert( + codestream_bytes.end(), container.boxes[i].data.data(), + container.boxes[i].data.data() + container.boxes[i].data.size()); + } + if (memcmp("jxlp", container.boxes[i].type, 4) == 0) { + EXPECT_EQ(false, found_jxlc); // Can't mix jxlc and jxlp + found_jxlp = true; + // Append all data except the first 4 box content bytes which are the + // jxpl box counter. + codestream_bytes.insert( + codestream_bytes.end(), container.boxes[i].data.data() + 4, + container.boxes[i].data.data() + container.boxes[i].data.size()); + } + } + EXPECT_EQ(true, found_jbrd); + EXPECT_EQ(true, found_jxlc || found_jxlp); + + jxl::CodecInOut decoded_io; + decoded_io.Main().jpeg_data = jxl::make_unique<jxl::jpeg::JPEGData>(); + EXPECT_TRUE(jxl::jpeg::DecodeJPEGData(container.boxes[jbrd_index].data, + decoded_io.Main().jpeg_data.get())); + + jxl::DecompressParams dparams; + dparams.keep_dct = true; + jxl::Span<const uint8_t> codestream_span = jxl::Span<const uint8_t>( + codestream_bytes.data(), codestream_bytes.size()); + EXPECT_TRUE(jxl::DecodeFile(dparams, codestream_span, &decoded_io, nullptr)); + + std::vector<uint8_t> decoded_jpeg_bytes; + auto write = [&decoded_jpeg_bytes](const uint8_t* buf, size_t len) { + decoded_jpeg_bytes.insert(decoded_jpeg_bytes.end(), buf, buf + len); + return len; + }; + EXPECT_TRUE(jxl::jpeg::WriteJpeg(*decoded_io.Main().jpeg_data, write)); + + EXPECT_EQ(decoded_jpeg_bytes.size(), orig.size()); + EXPECT_EQ(0, memcmp(decoded_jpeg_bytes.data(), orig.data(), orig.size())); +} + +static void ProcessEncoder(JxlEncoder* enc, std::vector<uint8_t>& compressed, + uint8_t*& next_out, size_t& avail_out) { + 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; + } + } + size_t offset = next_out - compressed.data(); + compressed.resize(next_out - compressed.data()); + next_out = compressed.data() + offset; + avail_out = compressed.size() - offset; + EXPECT_EQ(JXL_ENC_SUCCESS, process_result); +} + +TEST(EncodeTest, BasicInfoTest) { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + size_t xsize = 1; + size_t ysize = 1; + JxlPixelFormat pixel_format = {4, JXL_TYPE_UINT16, JXL_BIG_ENDIAN, 0}; + std::vector<uint8_t> pixels = jxl::test::GetSomeTestImage(xsize, ysize, 4, 0); + JxlBasicInfo basic_info; + jxl::test::JxlBasicInfoSetFromPixelFormat(&basic_info, &pixel_format); + basic_info.xsize = xsize; + basic_info.ysize = ysize; + basic_info.uses_original_profile = false; + basic_info.have_animation = true; + basic_info.intensity_target = 123.4; + basic_info.min_nits = 5.0; + basic_info.linear_below = 12.7; + basic_info.orientation = JXL_ORIENT_ROTATE_90_CW; + basic_info.animation.tps_numerator = 55; + basic_info.animation.tps_denominator = 77; + basic_info.animation.num_loops = 10; + basic_info.animation.have_timecodes = JXL_TRUE; + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetCodestreamLevel(enc.get(), 10)); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc.get(), &basic_info)); + JxlColorEncoding color_encoding; + JxlColorEncodingSetToSRGB(&color_encoding, /*is_gray=*/false); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetColorEncoding(enc.get(), &color_encoding)); + + std::vector<uint8_t> compressed = std::vector<uint8_t>(64); + uint8_t* next_out = compressed.data(); + size_t avail_out = compressed.size() - (next_out - compressed.data()); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderAddImageFrame(frame_settings, &pixel_format, + pixels.data(), pixels.size())); + JxlEncoderCloseFrames(enc.get()); + ProcessEncoder(enc.get(), compressed, next_out, avail_out); + + // Decode to verify the boxes, we don't decode to pixels, only the boxes. + JxlDecoderPtr dec = JxlDecoderMake(nullptr); + EXPECT_NE(nullptr, dec.get()); + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderSubscribeEvents(dec.get(), JXL_DEC_BASIC_INFO)); + // Allow testing the orientation field, without this setting it will be + // overridden to identity. + JxlDecoderSetKeepOrientation(dec.get(), JXL_TRUE); + JxlDecoderSetInput(dec.get(), compressed.data(), compressed.size()); + JxlDecoderCloseInput(dec.get()); + + for (;;) { + JxlDecoderStatus status = JxlDecoderProcessInput(dec.get()); + if (status == JXL_DEC_ERROR) { + FAIL(); + } else if (status == JXL_DEC_SUCCESS) { + break; + } else if (status == JXL_DEC_BASIC_INFO) { + JxlBasicInfo basic_info2; + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderGetBasicInfo(dec.get(), &basic_info2)); + EXPECT_EQ(basic_info.xsize, basic_info2.xsize); + EXPECT_EQ(basic_info.ysize, basic_info2.ysize); + EXPECT_EQ(basic_info.bits_per_sample, basic_info2.bits_per_sample); + EXPECT_EQ(basic_info.exponent_bits_per_sample, + basic_info2.exponent_bits_per_sample); + EXPECT_NEAR(basic_info.intensity_target, basic_info2.intensity_target, + 0.5); + EXPECT_NEAR(basic_info.min_nits, basic_info2.min_nits, 0.5); + EXPECT_NEAR(basic_info.linear_below, basic_info2.linear_below, 0.5); + EXPECT_EQ(basic_info.relative_to_max_display, + basic_info2.relative_to_max_display); + EXPECT_EQ(basic_info.uses_original_profile, + basic_info2.uses_original_profile); + EXPECT_EQ(basic_info.orientation, basic_info2.orientation); + EXPECT_EQ(basic_info.num_color_channels, basic_info2.num_color_channels); + // TODO(lode): also test num_extra_channels, but currently there may be a + // mismatch between 0 and 1 if there is alpha, until encoder support for + // extra channels is fully implemented. + EXPECT_EQ(basic_info.alpha_bits, basic_info2.alpha_bits); + EXPECT_EQ(basic_info.alpha_exponent_bits, + basic_info2.alpha_exponent_bits); + EXPECT_EQ(basic_info.alpha_premultiplied, + basic_info2.alpha_premultiplied); + + EXPECT_EQ(basic_info.have_preview, basic_info2.have_preview); + if (basic_info.have_preview) { + EXPECT_EQ(basic_info.preview.xsize, basic_info2.preview.xsize); + EXPECT_EQ(basic_info.preview.ysize, basic_info2.preview.ysize); + } + + EXPECT_EQ(basic_info.have_animation, basic_info2.have_animation); + if (basic_info.have_animation) { + EXPECT_EQ(basic_info.animation.tps_numerator, + basic_info2.animation.tps_numerator); + EXPECT_EQ(basic_info.animation.tps_denominator, + basic_info2.animation.tps_denominator); + EXPECT_EQ(basic_info.animation.num_loops, + basic_info2.animation.num_loops); + EXPECT_EQ(basic_info.animation.have_timecodes, + basic_info2.animation.have_timecodes); + } + } else { + FAIL(); // unexpected status + } + } +} + +TEST(EncodeTest, AnimationHeaderTest) { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + size_t xsize = 1; + size_t ysize = 1; + JxlPixelFormat pixel_format = {4, JXL_TYPE_UINT16, JXL_BIG_ENDIAN, 0}; + std::vector<uint8_t> pixels = jxl::test::GetSomeTestImage(xsize, ysize, 4, 0); + JxlBasicInfo basic_info; + jxl::test::JxlBasicInfoSetFromPixelFormat(&basic_info, &pixel_format); + basic_info.xsize = xsize; + basic_info.ysize = ysize; + basic_info.have_animation = true; + basic_info.animation.tps_numerator = 1000; + basic_info.animation.tps_denominator = 1; + basic_info.animation.have_timecodes = JXL_TRUE; + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetCodestreamLevel(enc.get(), 10)); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc.get(), &basic_info)); + JxlColorEncoding color_encoding; + JxlColorEncodingSetToSRGB(&color_encoding, /*is_gray=*/false); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetColorEncoding(enc.get(), &color_encoding)); + + std::string frame_name = "test frame"; + JxlFrameHeader header; + JxlEncoderInitFrameHeader(&header); + header.duration = 50; + header.timecode = 800; + header.layer_info.blend_info.blendmode = JXL_BLEND_BLEND; + header.layer_info.blend_info.source = 2; + header.layer_info.blend_info.clamp = 1; + JxlBlendInfo extra_channel_blend_info; + JxlEncoderInitBlendInfo(&extra_channel_blend_info); + extra_channel_blend_info.blendmode = JXL_BLEND_MULADD; + JxlEncoderSetFrameHeader(frame_settings, &header); + JxlEncoderSetExtraChannelBlendInfo(frame_settings, 0, + &extra_channel_blend_info); + JxlEncoderSetFrameName(frame_settings, frame_name.c_str()); + + std::vector<uint8_t> compressed = std::vector<uint8_t>(64); + uint8_t* next_out = compressed.data(); + size_t avail_out = compressed.size() - (next_out - compressed.data()); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderAddImageFrame(frame_settings, &pixel_format, + pixels.data(), pixels.size())); + JxlEncoderCloseFrames(enc.get()); + ProcessEncoder(enc.get(), compressed, next_out, avail_out); + + // Decode to verify the boxes, we don't decode to pixels, only the boxes. + JxlDecoderPtr dec = JxlDecoderMake(nullptr); + EXPECT_NE(nullptr, dec.get()); + + // To test the blend_info fields, coalescing must be set to false in the + // decoder. + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderSetCoalescing(dec.get(), JXL_FALSE)); + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderSubscribeEvents(dec.get(), JXL_DEC_FRAME)); + JxlDecoderSetInput(dec.get(), compressed.data(), compressed.size()); + JxlDecoderCloseInput(dec.get()); + + bool seen_frame = false; + + for (;;) { + JxlDecoderStatus status = JxlDecoderProcessInput(dec.get()); + if (status == JXL_DEC_ERROR) { + FAIL(); + } else if (status == JXL_DEC_SUCCESS) { + break; + } else if (status == JXL_DEC_FRAME) { + seen_frame = true; + JxlFrameHeader header2; + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderGetFrameHeader(dec.get(), &header2)); + EXPECT_EQ(header.duration, header2.duration); + EXPECT_EQ(header.timecode, header2.timecode); + EXPECT_EQ(header.layer_info.blend_info.blendmode, + header2.layer_info.blend_info.blendmode); + EXPECT_EQ(header.layer_info.blend_info.clamp, + header2.layer_info.blend_info.clamp); + EXPECT_EQ(header.layer_info.blend_info.source, + header2.layer_info.blend_info.source); + EXPECT_EQ(frame_name.size(), header2.name_length); + JxlBlendInfo extra_channel_blend_info2; + JxlDecoderGetExtraChannelBlendInfo(dec.get(), 0, + &extra_channel_blend_info2); + EXPECT_EQ(extra_channel_blend_info.blendmode, + extra_channel_blend_info2.blendmode); + if (header2.name_length > 0) { + std::string frame_name2(header2.name_length + 1, '\0'); + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderGetFrameName(dec.get(), &frame_name2.front(), + frame_name2.size())); + frame_name2.resize(header2.name_length); + EXPECT_EQ(frame_name, frame_name2); + } + } else { + FAIL(); // unexpected status + } + } + + EXPECT_EQ(true, seen_frame); +} +TEST(EncodeTest, CroppedFrameTest) { + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + size_t xsize = 300; + size_t ysize = 300; + JxlPixelFormat pixel_format = {4, JXL_TYPE_UINT16, JXL_BIG_ENDIAN, 0}; + std::vector<uint8_t> pixels = jxl::test::GetSomeTestImage(xsize, ysize, 4, 0); + std::vector<uint8_t> pixels2(pixels.size()); + JxlBasicInfo basic_info; + jxl::test::JxlBasicInfoSetFromPixelFormat(&basic_info, &pixel_format); + // Encoding a 300x300 frame in an image that is only 100x100 + basic_info.xsize = 100; + basic_info.ysize = 100; + basic_info.uses_original_profile = JXL_TRUE; + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetCodestreamLevel(enc.get(), 10)); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc.get(), &basic_info)); + JxlColorEncoding color_encoding; + JxlColorEncodingSetToSRGB(&color_encoding, /*is_gray=*/false); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetColorEncoding(enc.get(), &color_encoding)); + + JxlFrameHeader header; + JxlEncoderInitFrameHeader(&header); + header.layer_info.have_crop = JXL_TRUE; + header.layer_info.xsize = xsize; + header.layer_info.ysize = ysize; + header.layer_info.crop_x0 = -50; + header.layer_info.crop_y0 = -250; + JxlEncoderSetFrameLossless(frame_settings, JXL_TRUE); + JxlEncoderSetFrameHeader(frame_settings, &header); + JxlEncoderFrameSettingsSetOption(frame_settings, JXL_ENC_FRAME_SETTING_EFFORT, + 1); + + std::vector<uint8_t> compressed = std::vector<uint8_t>(100); + uint8_t* next_out = compressed.data(); + size_t avail_out = compressed.size() - (next_out - compressed.data()); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderAddImageFrame(frame_settings, &pixel_format, + pixels.data(), pixels.size())); + JxlEncoderCloseFrames(enc.get()); + ProcessEncoder(enc.get(), compressed, next_out, avail_out); + + JxlDecoderPtr dec = JxlDecoderMake(nullptr); + EXPECT_NE(nullptr, dec.get()); + // Non-coalesced decoding so we can get the full uncropped frame + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderSetCoalescing(dec.get(), JXL_FALSE)); + EXPECT_EQ( + JXL_DEC_SUCCESS, + JxlDecoderSubscribeEvents(dec.get(), JXL_DEC_FRAME | JXL_DEC_FULL_IMAGE)); + JxlDecoderSetInput(dec.get(), compressed.data(), compressed.size()); + JxlDecoderCloseInput(dec.get()); + + bool seen_frame = false; + bool checked_frame = false; + for (;;) { + JxlDecoderStatus status = JxlDecoderProcessInput(dec.get()); + if (status == JXL_DEC_ERROR) { + FAIL(); + } else if (status == JXL_DEC_SUCCESS) { + break; + } else if (status == JXL_DEC_FRAME) { + seen_frame = true; + JxlFrameHeader header2; + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderGetFrameHeader(dec.get(), &header2)); + EXPECT_EQ(header.layer_info.xsize, header2.layer_info.xsize); + EXPECT_EQ(header.layer_info.ysize, header2.layer_info.ysize); + EXPECT_EQ(header.layer_info.crop_x0, header2.layer_info.crop_x0); + EXPECT_EQ(header.layer_info.crop_y0, header2.layer_info.crop_y0); + } else if (status == JXL_DEC_NEED_IMAGE_OUT_BUFFER) { + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderSetImageOutBuffer(dec.get(), &pixel_format, + pixels2.data(), pixels2.size())); + } else if (status == JXL_DEC_FULL_IMAGE) { + EXPECT_EQ(0, memcmp(pixels.data(), pixels2.data(), pixels.size())); + checked_frame = true; + } else { + FAIL(); // unexpected status + } + } + EXPECT_EQ(true, checked_frame); + EXPECT_EQ(true, seen_frame); +} + +TEST(EncodeTest, BoxTest) { + // Test with uncompressed boxes and with brob boxes + for (int compress_box = 0; compress_box <= 1; ++compress_box) { + // Tests adding two metadata boxes with the encoder: an exif box before the + // image frame, and an xml box after the image frame. Then verifies the + // decoder can decode them, they are in the expected place, and have the + // correct content after decoding. + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + EXPECT_NE(nullptr, enc.get()); + + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderUseBoxes(enc.get())); + + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + size_t xsize = 50; + size_t ysize = 17; + JxlPixelFormat pixel_format = {4, JXL_TYPE_UINT16, JXL_BIG_ENDIAN, 0}; + std::vector<uint8_t> pixels = + jxl::test::GetSomeTestImage(xsize, ysize, 4, 0); + 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.get(), 10)); + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderSetBasicInfo(enc.get(), &basic_info)); + JxlColorEncoding color_encoding; + JxlColorEncodingSetToSRGB(&color_encoding, + /*is_gray=*/false); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetColorEncoding(enc.get(), &color_encoding)); + + std::vector<uint8_t> compressed = std::vector<uint8_t>(64); + uint8_t* next_out = compressed.data(); + size_t avail_out = compressed.size() - (next_out - compressed.data()); + + // Add an early metadata box. Also add a valid 4-byte TIFF offset header + // before the fake exif data of these box contents. + constexpr const char* exif_test_string = "\0\0\0\0exif test data"; + const uint8_t* exif_data = + reinterpret_cast<const uint8_t*>(exif_test_string); + // Skip the 4 zeroes for strlen + const size_t exif_size = 4 + strlen(exif_test_string + 4); + JxlEncoderAddBox(enc.get(), "Exif", exif_data, exif_size, compress_box); + + // Write to output + ProcessEncoder(enc.get(), compressed, next_out, avail_out); + + // Add image frame + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderAddImageFrame(frame_settings, &pixel_format, + pixels.data(), pixels.size())); + // Indicate this is the last frame + JxlEncoderCloseFrames(enc.get()); + + // Write to output + ProcessEncoder(enc.get(), compressed, next_out, avail_out); + + // Add a late metadata box + constexpr const char* xml_test_string = "<some random xml data>"; + const uint8_t* xml_data = reinterpret_cast<const uint8_t*>(xml_test_string); + size_t xml_size = strlen(xml_test_string); + JxlEncoderAddBox(enc.get(), "XML ", xml_data, xml_size, compress_box); + + // Indicate this is the last box + JxlEncoderCloseBoxes(enc.get()); + + // Write to output + ProcessEncoder(enc.get(), compressed, next_out, avail_out); + + // Decode to verify the boxes, we don't decode to pixels, only the boxes. + JxlDecoderPtr dec = JxlDecoderMake(nullptr); + EXPECT_NE(nullptr, dec.get()); + + if (compress_box) { + EXPECT_EQ(JXL_DEC_SUCCESS, + JxlDecoderSetDecompressBoxes(dec.get(), JXL_TRUE)); + } + + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderSubscribeEvents( + dec.get(), JXL_DEC_FRAME | JXL_DEC_BOX)); + + JxlDecoderSetInput(dec.get(), compressed.data(), compressed.size()); + JxlDecoderCloseInput(dec.get()); + + std::vector<uint8_t> dec_exif_box(exif_size); + std::vector<uint8_t> dec_xml_box(xml_size); + + for (bool post_frame = false;;) { + JxlDecoderStatus status = JxlDecoderProcessInput(dec.get()); + if (status == JXL_DEC_ERROR) { + FAIL(); + } else if (status == JXL_DEC_SUCCESS) { + EXPECT_EQ(0, JxlDecoderReleaseBoxBuffer(dec.get())); + break; + } else if (status == JXL_DEC_FRAME) { + post_frame = true; + } else if (status == JXL_DEC_BOX) { + // Since we gave the exif/xml box output buffer of the exact known + // correct size, 0 bytes should be released. Same when no buffer was + // set. + EXPECT_EQ(0, JxlDecoderReleaseBoxBuffer(dec.get())); + JxlBoxType type; + EXPECT_EQ(JXL_DEC_SUCCESS, JxlDecoderGetBoxType(dec.get(), type, true)); + if (!memcmp(type, "Exif", 4)) { + // This box should have been encoded before the image frame + EXPECT_EQ(false, post_frame); + JxlDecoderSetBoxBuffer(dec.get(), dec_exif_box.data(), + dec_exif_box.size()); + } else if (!memcmp(type, "XML ", 4)) { + // This box should have been encoded after the image frame + EXPECT_EQ(true, post_frame); + JxlDecoderSetBoxBuffer(dec.get(), dec_xml_box.data(), + dec_xml_box.size()); + } + } else { + FAIL(); // unexpected status + } + } + + EXPECT_EQ(0, memcmp(exif_data, dec_exif_box.data(), exif_size)); + EXPECT_EQ(0, memcmp(xml_data, dec_xml_box.data(), xml_size)); + } +} + +#if JPEGXL_ENABLE_JPEG // Loading .jpg files requires libjpeg support. +TEST(EncodeTest, JXL_TRANSCODE_JPEG_TEST(JPEGFrameTest)) { + for (int skip_basic_info = 0; skip_basic_info < 2; skip_basic_info++) { + for (int skip_color_encoding = 0; skip_color_encoding < 2; + skip_color_encoding++) { + const std::string jpeg_path = + "third_party/imagecompression.info/flower_foveon_cropped.jpg"; + const jxl::PaddedBytes orig = jxl::ReadTestData(jpeg_path); + jxl::CodecInOut orig_io; + ASSERT_TRUE(SetFromBytes(jxl::Span<const uint8_t>(orig), &orig_io, + /*pool=*/nullptr)); + + JxlEncoderPtr enc = JxlEncoderMake(nullptr); + JxlEncoderFrameSettings* frame_settings = + JxlEncoderFrameSettingsCreate(enc.get(), NULL); + JxlEncoderFrameSettingsSetOption(frame_settings, + JXL_ENC_FRAME_SETTING_EFFORT, 1); + if (!skip_basic_info) { + JxlBasicInfo basic_info; + JxlEncoderInitBasicInfo(&basic_info); + basic_info.xsize = orig_io.xsize(); + basic_info.ysize = orig_io.ysize(); + basic_info.uses_original_profile = true; + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetBasicInfo(enc.get(), &basic_info)); + } + if (!skip_color_encoding) { + JxlColorEncoding color_encoding; + JxlColorEncodingSetToSRGB(&color_encoding, /*is_gray=*/false); + EXPECT_EQ(JXL_ENC_SUCCESS, + JxlEncoderSetColorEncoding(enc.get(), &color_encoding)); + } + EXPECT_EQ(JXL_ENC_SUCCESS, JxlEncoderAddJPEGFrame( + frame_settings, orig.data(), orig.size())); + JxlEncoderCloseInput(enc.get()); + + std::vector<uint8_t> compressed = std::vector<uint8_t>(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.get(), &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); + + jxl::DecompressParams dparams; + jxl::CodecInOut decoded_io; + EXPECT_TRUE(jxl::DecodeFile( + dparams, + jxl::Span<const uint8_t>(compressed.data(), compressed.size()), + &decoded_io, /*pool=*/nullptr)); + + EXPECT_LE( + ComputeDistance2(orig_io.Main(), decoded_io.Main(), jxl::GetJxlCms()), + 3.5); + } + } +} +#endif // JPEGXL_ENABLE_JPEG |