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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_ENC_HEURISTICS_H_
#define LIB_JXL_ENC_HEURISTICS_H_
// Hook for custom encoder heuristics (VarDCT only for now).
#include <jxl/cms_interface.h>
#include <stddef.h>
#include "lib/jxl/base/data_parallel.h"
#include "lib/jxl/base/status.h"
#include "lib/jxl/frame_header.h"
#include "lib/jxl/image.h"
namespace jxl {
struct AuxOut;
struct PassesEncoderState;
class DequantMatrices;
class ImageBundle;
class ModularFrameEncoder;
// Initializes encoder structures in `enc_state` using the original image data
// in `original_pixels`, and the XYB image data in `opsin`. Also modifies the
// `opsin` image by applying Gaborish, and doing other modifications if
// necessary. `pool` is used for running the computations on multiple threads.
// `aux_out` collects statistics and can be used to print debug images.
Status LossyFrameHeuristics(const FrameHeader& frame_header,
PassesEncoderState* enc_state,
ModularFrameEncoder* modular_frame_encoder,
const Image3F* original_pixels, Image3F* opsin,
const Rect& rect, const JxlCmsInterface& cms,
ThreadPool* pool, AuxOut* aux_out);
void FindBestBlockEntropyModel(PassesEncoderState& enc_state);
void DownsampleImage2_Iterative(Image3F* output);
void DownsampleImage2_Sharper(Image3F* opsin);
} // namespace jxl
#endif // LIB_JXL_ENC_HEURISTICS_H_
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