enc_transforms.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_TRANSFORMS_H_

#define LIB_JXL_ENC_TRANSFORMS_H_

// Facade for (non-inlined) integral transforms.

#include <cstddef>

#include <cstdint>

#include "lib/jxl/base/compiler_specific.h"

namespace jxl {

enum class AcStrategyType : uint32_t;

void TransformFromPixels(AcStrategyType strategy,

                         const float* JXL_RESTRICT pixels, size_t pixels_stride,

                         float* JXL_RESTRICT coefficients,

                         float* JXL_RESTRICT scratch_space);

// Equivalent of the above for DC image.

void DCFromLowestFrequencies(AcStrategyType strategy, const float* block,

                             float* dc, size_t dc_stride);

void AFVDCT4x4(const float* JXL_RESTRICT pixels, float* JXL_RESTRICT coeffs);

}  // namespace jxl

#endif  // LIB_JXL_ENC_TRANSFORMS_H_