FFmpeg
hflip.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2007 Benoit Fouet
3  * Copyright (c) 2010 Stefano Sabatini
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVFILTER_HFLIP_H
23 #define AVFILTER_HFLIP_H
24 
25 #include "avfilter.h"
26 
27 typedef struct FlipContext {
28  const AVClass *class;
29  int max_step[4]; ///< max pixel step for each plane, expressed as a number of bytes
30  int planewidth[4]; ///< width of each plane
31  int planeheight[4]; ///< height of each plane
32 
33  void (*flip_line[4])(const uint8_t *src, uint8_t *dst, int w);
34 } FlipContext;
35 
36 int ff_hflip_init(FlipContext *s, int step[4], int nb_planes);
37 void ff_hflip_init_x86(FlipContext *s, int step[4], int nb_planes);
38 
39 #endif /* AVFILTER_HFLIP_H */
int planeheight[4]
height of each plane
Definition: hflip.h:31
int max_step[4]
max pixel step for each plane, expressed as a number of bytes
Definition: hflip.h:29
Main libavfilter public API header.
int ff_hflip_init(FlipContext *s, int step[4], int nb_planes)
Definition: vf_hflip.c:147
#define src
Definition: vp8dsp.c:254
uint8_t
int planewidth[4]
width of each plane
Definition: hflip.h:30
uint8_t w
Definition: llviddspenc.c:38
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
#define s(width, name)
Definition: cbs_vp9.c:257
void ff_hflip_init_x86(FlipContext *s, int step[4], int nb_planes)
Definition: vf_hflip_init.c:31
Describe the class of an AVClass context structure.
Definition: log.h:67
void(* flip_line[4])(const uint8_t *src, uint8_t *dst, int w)
Definition: hflip.h:33
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about which is also called distortion Distortion can be quantified by almost any quality measurement one chooses the sum of squared differences is used but more complex methods that consider psychovisual effects can be used as well It makes no difference in this discussion First step