FFmpeg  4.3
hflip.h
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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 */
step
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
Definition: rate_distortion.txt:58
ff_hflip_init_x86
void ff_hflip_init_x86(FlipContext *s, int step[4], int nb_planes)
Definition: vf_hflip_init.c:31
s
#define s(width, name)
Definition: cbs_vp9.c:257
FlipContext::planewidth
int planewidth[4]
width of each plane
Definition: hflip.h:30
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
src
#define src
Definition: vp8dsp.c:254
FlipContext::planeheight
int planeheight[4]
height of each plane
Definition: hflip.h:31
FlipContext::max_step
int max_step[4]
max pixel step for each plane, expressed as a number of bytes
Definition: hflip.h:29
uint8_t
uint8_t
Definition: audio_convert.c:194
w
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new please make sure they are as small as space on each network bandwidth and so on benefit from smaller test cases Also keep in mind older checkouts use existing sample that means in practice generally do not remove or overwrite files as it likely would break older checkouts or releases Also all needed samples for a commit should be ideally before the push If you need an account for frequently uploading samples or you wish to help others by doing that send a mail to ffmpeg devel rsync vauL Duo ug o o w
Definition: fate.txt:150
void
typedef void(RENAME(mix_any_func_type))
Definition: rematrix_template.c:52
FlipContext
Definition: hflip.h:27
avfilter.h
FlipContext::flip_line
void(* flip_line[4])(const uint8_t *src, uint8_t *dst, int w)
Definition: hflip.h:33
ff_hflip_init
int ff_hflip_init(FlipContext *s, int step[4], int nb_planes)
Definition: vf_hflip.c:147