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vf_idet.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVFILTER_IDET_H
20 #define AVFILTER_IDET_H
21 
22 #include "libavutil/pixdesc.h"
23 #include "avfilter.h"
24 
25 #define HIST_SIZE 4
26 
27 typedef int (*ff_idet_filter_func)(const uint8_t *a, const uint8_t *b, const uint8_t *c, int w);
28 
29 typedef enum {
30  TFF,
31  BFF,
34 } Type;
35 
36 typedef enum {
41 
42 typedef struct {
43  const AVClass *class;
47  float half_life;
49 
51 
52  uint64_t repeats[3];
53  uint64_t prestat[4];
54  uint64_t poststat[4];
55  uint64_t total_repeats[3];
56  uint64_t total_prestat[4];
57  uint64_t total_poststat[4];
58 
59  uint8_t history[HIST_SIZE];
60 
65 
69 
71  int eof;
72 } IDETContext;
73 
74 void ff_idet_init_x86(IDETContext *idet, int for_16b);
75 
76 /* main fall-back for left-over */
77 int ff_idet_filter_line_c(const uint8_t *a, const uint8_t *b, const uint8_t *c, int w);
78 int ff_idet_filter_line_c_16bit(const uint16_t *a, const uint16_t *b, const uint16_t *c, int w);
79 
80 #endif