/*
* Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com>
* Copyright (C) 2013 Lenny Wang
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFILTER_UNSHARP_H
#define AVFILTER_UNSHARP_H
#include "config.h"
#include "avfilter.h"
#define MIN_MATRIX_SIZE 3
#define MAX_MATRIX_SIZE 63
typedef struct UnsharpFilterParam {
int msize_x; ///< matrix width
int msize_y; ///< matrix height
int amount; ///< effect amount
int steps_x; ///< horizontal step count
int steps_y; ///< vertical step count
int scalebits; ///< bits to shift pixel
int32_t halfscale; ///< amount to add to pixel
uint32_t *sr; ///< finite state machine storage within a row
uint32_t **sc; ///< finite state machine storage across rows
} UnsharpFilterParam;
typedef struct UnsharpContext {
const AVClass *class;
int lmsize_x, lmsize_y, cmsize_x, cmsize_y;
float lamount, camount;
UnsharpFilterParam luma; ///< luma parameters (width, height, amount)
UnsharpFilterParam chroma; ///< chroma parameters (width, height, amount)
int hsub, vsub;
int nb_threads;
int opencl;
int (* apply_unsharp)(AVFilterContext *ctx, AVFrame *in, AVFrame *out);
} UnsharpContext;
#endif /* AVFILTER_UNSHARP_H */