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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_RENDER_PIPELINE_STAGE_EPF_H_
#define LIB_JXL_RENDER_PIPELINE_STAGE_EPF_H_
#include <math.h>
#include <stdint.h>
#include <stdio.h>
#include <algorithm>
#include <utility>
#include <vector>
#include "lib/jxl/image.h"
#include "lib/jxl/loop_filter.h"
#include "lib/jxl/render_pipeline/render_pipeline_stage.h"
namespace jxl {
// Applies the `epf_stage`-th EPF step with the given settings and `sigma`.
// `sigma` will be accessed with an offset of (kSigmaPadding, kSigmaPadding),
// and should have (kSigmaBorder, kSigmaBorder) mirrored sigma values available
// around the main image. See also filters.(h|cc)
std::unique_ptr<RenderPipelineStage> GetEPFStage(const LoopFilter& lf,
const ImageF& sigma,
size_t epf_stage);
} // namespace jxl
#endif // LIB_JXL_RENDER_PIPELINE_STAGE_EPF_H_
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