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Diffstat (limited to '')
-rw-r--r-- | third_party/jpeg-xl/lib/extras/enc/jxl.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/extras/enc/jxl.h b/third_party/jpeg-xl/lib/extras/enc/jxl.h new file mode 100644 index 0000000000..3e77fce3c1 --- /dev/null +++ b/third_party/jpeg-xl/lib/extras/enc/jxl.h @@ -0,0 +1,78 @@ +// 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. + +#ifndef LIB_EXTRAS_ENC_JXL_H_ +#define LIB_EXTRAS_ENC_JXL_H_ + +#include <jxl/encode.h> +#include <jxl/parallel_runner.h> +#include <jxl/thread_parallel_runner.h> +#include <jxl/types.h> +#include <stdint.h> + +#include <vector> + +#include "lib/extras/packed_image.h" + +namespace jxl { +namespace extras { + +struct JXLOption { + JXLOption(JxlEncoderFrameSettingId id, int64_t val, size_t frame_index) + : id(id), is_float(false), ival(val), frame_index(frame_index) {} + JXLOption(JxlEncoderFrameSettingId id, float val, size_t frame_index) + : id(id), is_float(true), fval(val), frame_index(frame_index) {} + + JxlEncoderFrameSettingId id; + bool is_float; + union { + int64_t ival; + float fval; + }; + size_t frame_index; +}; + +struct JXLCompressParams { + std::vector<JXLOption> options; + // Target butteraugli distance, 0.0 means lossless. + float distance = 1.0f; + float alpha_distance = 1.0f; + // If set to true, forces container mode. + bool use_container = false; + // Whether to enable/disable byte-exact jpeg reconstruction for jpeg inputs. + bool jpeg_store_metadata = true; + // Whether to create brob boxes. + bool compress_boxes = true; + // Upper bound on the intensity level present in the image in nits (zero means + // that the library chooses a default). + float intensity_target = 0; + // Overrides for bitdepth, codestream level and alpha premultiply. + size_t override_bitdepth = 0; + int32_t codestream_level = -1; + int32_t premultiply = -1; + // Override input buffer interpretation. + JxlBitDepth input_bitdepth = {JXL_BIT_DEPTH_FROM_PIXEL_FORMAT, 0, 0}; + // If runner_opaque is set, the decoder uses this parallel runner. + JxlParallelRunner runner = JxlThreadParallelRunner; + void* runner_opaque = nullptr; + + bool allow_expert_options = false; + + void AddOption(JxlEncoderFrameSettingId id, int64_t val) { + options.emplace_back(JXLOption(id, val, 0)); + } + void AddFloatOption(JxlEncoderFrameSettingId id, float val) { + options.emplace_back(JXLOption(id, val, 0)); + } +}; + +bool EncodeImageJXL(const JXLCompressParams& params, const PackedPixelFile& ppf, + const std::vector<uint8_t>* jpeg_bytes, + std::vector<uint8_t>* compressed); + +} // namespace extras +} // namespace jxl + +#endif // LIB_EXTRAS_ENC_JXL_H_ |