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/*
* 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_IDET_H
#define AVFILTER_IDET_H
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#define HIST_SIZE 4
typedef int (*ff_idet_filter_func)(const uint8_t *a, const uint8_t *b, const uint8_t *c, int w);
typedef enum {
TFF,
BFF,
PROGRESSIVE,
UNDETERMINED,
} Type;
typedef struct {
const AVClass *class;
float interlace_threshold;
float progressive_threshold;
Type last_type;
int prestat[4];
int poststat[4];
uint8_t history[HIST_SIZE];
AVFrame *cur;
AVFrame *next;
AVFrame *prev;
ff_idet_filter_func filter_line;
const AVPixFmtDescriptor *csp;
int eof;
} IDETContext;
void ff_idet_init_x86(IDETContext *idet, int for_16b);
/* main fall-back for left-over */
int ff_idet_filter_line_c(const uint8_t *a, const uint8_t *b, const uint8_t *c, int w);
int ff_idet_filter_line_c_16bit(const uint16_t *a, const uint16_t *b, const uint16_t *c, int w);
#endif
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