/usr/include/mjpegtools/motionsearch.h is in libmjpegtools-dev 1:2.1.0+debian-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | /* (C) 2000/2001 Andrew Stevens */
/* This software is free software; you can redistribute it
* and/or modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
*/
#ifndef __MOTIONSEARCH_H__
#define __MOTIONSEARCH_H__
#include <mjpeg_types.h>
struct me_result
{
uint16_t weight;
int8_t x;
int8_t y;
};
typedef struct me_result me_result_s;
#define MAX_MATCHES (256*256/4)
typedef struct _me_result_vec {
int len;
me_result_s mests[MAX_MATCHES];
} me_result_set;
/*
* Function pointers for selecting CPU specific implementations
* Top-level motion estimation entry points.
*/
/*
* Use given set of 2*2 sub-sampled motion estimates generated using
* pbuild_sub22_mests to generate a best 1-pel motion estimate.
*/
extern void (*pfind_best_one_pel)(me_result_set *sub22set,
uint8_t *org, uint8_t *blk,
int i0, int j0, int ihigh, int jhigh,
int rowstride, int h, me_result_s *res);
/*
* Use given set of 4*4 sub-sampled motion estimates generated using
* pbuild_sub44_mests to generate a set of best 2*2 sub-sampled motion estimates
*/
extern int (*pbuild_sub22_mests)(me_result_set *sub44set,
me_result_set *sub22set,
int i0, int j0, int ihigh, int jhigh,
int null_mc_sad,
uint8_t *s22org, uint8_t *s22blk,
int frowstride, int fh, int reduction);
/*
* Generate a set the best 4*4 sub-sampled motion estimates
* from the specifed rectangle of candidates in s44org with respect
* to the reference block s44blk
*/
extern int (*pbuild_sub44_mests)(me_result_set *sub44set,
int ilow, int jlow, int ihigh, int jhigh,
int i0, int j0, int null_mc_sad,
uint8_t *s44org, uint8_t *s44blk,
int qrowstride, int qh, int reduction);
/*
* Lower level difference comparison routines
*
* Naming convention: for block difference metric functions
* sad - Sum Absolute difference
* sumsq - Sum of squares
* sub44 - 4*4 Subsampled macroblocks (i.e. 4x4 subsampled pels)
* sub22 2*2 submsapled macroblocks (i.e. 8x8 subsampled pels)
* <nothing> Ordinary macroblocks (i.e. 16x16 pels)
* "b" prefix: Difference of bi-directionally interpolated block
* (i.e. mean of two blocks)
* _xy suffix: Difference with half-pel sub-sampling offset.
* (i.e. _00 is just ordinary no sub-sampling)
* mests - Motion estimate results relative motion vector with sad.
*/
extern int (*psumsq_sub22)(uint8_t *blk1, uint8_t *blk2, int rowstride, int h);
extern int (*pbsumsq_sub22)(uint8_t *blk1f, uint8_t *blk1b,
uint8_t *blk2, int rowstride, int h);
extern void (*pvariance)(uint8_t *mb, int size, int rowstride,
uint32_t *p_variance, uint32_t *p_mean);
extern int (*psad_sub22)(uint8_t *blk1, uint8_t *blk2, int frowstride, int fh);
extern int (*psad_sub44)(uint8_t *blk1, uint8_t *blk2, int qrowstride, int qh);
extern int (*psad_00)(uint8_t *blk1, uint8_t *blk2, int rowstride, int h, int distlim);
extern int (*psad_01)(uint8_t *blk1, uint8_t *blk2, int rowstride, int h);
extern int (*psad_10)(uint8_t *blk1, uint8_t *blk2, int rowstride, int h);
extern int (*psad_11)(uint8_t *blk1, uint8_t *blk2, int rowstride, int h);
extern int (*psumsq)(uint8_t *blk1, uint8_t *blk2,
int rowstride, int hx, int hy, int h);
extern int (*pbsumsq) (uint8_t *pf, uint8_t *pb, uint8_t *p2, int rowstride,
int hxf, int hyf, int hxb, int hyb, int h);
extern int (*pbsad) (uint8_t *pf, uint8_t *pb, uint8_t *p2, int rowstride,
int hxf, int hyf, int hxb, int hyb, int h);
extern void (*psubsample_image) (uint8_t *image, int rowstride,
uint8_t *sub22_image, uint8_t *sub44_image);
#ifdef __cplusplus
extern "C" {
#endif
void init_motion_search(void), reset_motion_simd(char *);
int round_search_radius( int radius );
#ifdef __cplusplus
}
#endif
#endif /* __MOTIONSEARCH_H__ */
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