jpegli.h - mozsearch

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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_DEC_JPEGLI_H_

#define LIB_EXTRAS_DEC_JPEGLI_H_

// Decodes JPG pixels and metadata in memory using the libjpegli library.

#include <jxl/types.h>

#include <stdint.h>

#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 JpegDecompressParams {

  JxlDataType output_data_type = JXL_TYPE_UINT8;

  JxlEndianness output_endianness = JXL_NATIVE_ENDIAN;

  bool force_rgb = false;

  bool force_grayscale = false;

  int num_colors = 0;

  bool two_pass_quant = true;

  // 0 = none, 1 = ordered, 2 = Floyd-Steinberg

  int dither_mode = 2;

};

Status DecodeJpeg(const std::vector<uint8_t>& compressed,

                  const JpegDecompressParams& dparams, ThreadPool* pool,

                  PackedPixelFile* ppf);

}  // namespace extras

}  // namespace jxl

#endif  // LIB_EXTRAS_DEC_JPEGLI_H_