enc_heuristics.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_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 "lib/jxl/base/data_parallel.h"

#include "lib/jxl/base/rect.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* linear, Image3F* opsin,

                            const Rect& rect, const JxlCmsInterface& cms,

                            ThreadPool* pool, AuxOut* aux_out);

Status ComputeARHeuristics(const FrameHeader& frame_header,

                           PassesEncoderState* enc_state,

                           const Image3F& orig_opsin, const Rect& rect,

                           ThreadPool* pool);

void FindBestBlockEntropyModel(PassesEncoderState& enc_state);

Status DownsampleImage2_Iterative(Image3F* opsin);

Status DownsampleImage2_Sharper(Image3F* opsin);

}  // namespace jxl

#endif  // LIB_JXL_ENC_HEURISTICS_H_