// 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 #include #include #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 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; // 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 app_data; }; Status EncodeJpeg(const PackedPixelFile& ppf, const JpegSettings& jpeg_settings, ThreadPool* pool, std::vector* compressed); } // namespace extras } // namespace jxl #endif // LIB_EXTRAS_ENC_JPEGLI_H_