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// 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_JPEGLI_H_
#define LIB_EXTRAS_ENC_JPEGLI_H_
// Encodes JPG pixels and metadata in memory using the libjpegli library.
#include <stdint.h>
#include <string>
#include <vector>
#include "lib/extras/packed_image.h"
#include "lib/jxl/base/data_parallel.h"
#include "lib/jxl/base/status.h"
namespace jxl {
namespace extras {
struct JpegSettings {
bool xyb = false;
size_t target_size = 0;
float quality = 0.0f;
float distance = 1.f;
bool use_adaptive_quantization = true;
bool use_std_quant_tables = false;
int progressive_level = 2;
bool optimize_coding = true;
std::string chroma_subsampling;
int libjpeg_quality = 0;
std::string libjpeg_chroma_subsampling;
// Parameters for selecting distance based on PSNR target.
float psnr_target = 0.0f;
float search_tolerance = 0.01;
float min_distance = 0.1f;
float max_distance = 25.0f;
// If not empty, must contain concatenated APP marker segments. In this case,
// these and only these APP marker segments will be written to the JPEG
// output. In xyb mode app_data must not contain an ICC profile, in this
// case an additional APP2 ICC profile for the XYB colorspace will be emitted.
std::vector<uint8_t> app_data;
};
Status EncodeJpeg(const PackedPixelFile& ppf, const JpegSettings& jpeg_settings,
ThreadPool* pool, std::vector<uint8_t>* compressed);
} // namespace extras
} // namespace jxl
#endif // LIB_EXTRAS_ENC_JPEGLI_H_
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