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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_JXL_COMPRESSED_DC_H_
#define LIB_JXL_COMPRESSED_DC_H_
#include <stddef.h>
#include <stdint.h>
#include "lib/jxl/ac_context.h"
#include "lib/jxl/base/data_parallel.h"
#include "lib/jxl/frame_header.h"
#include "lib/jxl/image.h"
#include "lib/jxl/modular/modular_image.h"
// DC handling functions: encoding and decoding of DC to and from bitstream, and
// related function to initialize the per-group decoder cache.
namespace jxl {
// Smooth DC in already-smooth areas, to counteract banding.
void AdaptiveDCSmoothing(const float* dc_factors, Image3F* dc,
ThreadPool* pool);
void DequantDC(const Rect& r, Image3F* dc, ImageB* quant_dc, const Image& in,
const float* dc_factors, float mul, const float* cfl_factors,
YCbCrChromaSubsampling chroma_subsampling,
const BlockCtxMap& bctx);
} // namespace jxl
#endif // LIB_JXL_COMPRESSED_DC_H_
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