FFmpeg  4.3
Data Structures | Macros | Functions | Variables
vf_uspp.c File Reference
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "internal.h"
#include "avfilter.h"

Go to the source code of this file.

Data Structures

struct  USPPContext
 

Macros

#define MAX_LEVEL   8 /* quality levels */
 
#define BLOCK   16
 
#define OFFSET(x)   offsetof(USPPContext, x)
 
#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 
#define STORE(pos)
 

Functions

 AVFILTER_DEFINE_CLASS (uspp)
 
static void store_slice_c (uint8_t *dst, const uint16_t *src, int dst_stride, int src_stride, int width, int height, int log2_scale)
 
static void filter (USPPContext *p, uint8_t *dst[3], uint8_t *src[3], int dst_stride[3], int src_stride[3], int width, int height, uint8_t *qp_store, int qp_stride)
 
static int query_formats (AVFilterContext *ctx)
 
static int config_input (AVFilterLink *inlink)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 
static av_cold void uninit (AVFilterContext *ctx)
 

Variables

static const AVOption uspp_options []
 
static const uint8_t dither [8][8]
 
static const uint8_t offset [511][2]
 
static const AVFilterPad uspp_inputs []
 
static const AVFilterPad uspp_outputs []
 
AVFilter ff_vf_uspp
 

Detailed Description

Ultra Slow/Simple Post-processing filter.

Originally written by Michael Niedermayer for the MPlayer project, and ported by Arwa Arif for FFmpeg.

Definition in file vf_uspp.c.

Macro Definition Documentation

◆ MAX_LEVEL

#define MAX_LEVEL   8 /* quality levels */

Definition at line 37 of file vf_uspp.c.

◆ BLOCK

#define BLOCK   16

Definition at line 38 of file vf_uspp.c.

◆ OFFSET

#define OFFSET (   x)    offsetof(USPPContext, x)

Definition at line 59 of file vf_uspp.c.

◆ FLAGS

Definition at line 60 of file vf_uspp.c.

◆ STORE

#define STORE (   pos)
Value:
do { \
temp = ((src[x + y * src_stride + pos] << log2_scale) + d[pos]) >> 8; \
if (temp & 0x100) temp = ~(temp >> 31); \
dst[x + y * dst_stride + pos] = temp; \
} while (0)

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( uspp  )

◆ store_slice_c()

static void store_slice_c ( uint8_t dst,
const uint16_t *  src,
int  dst_stride,
int  src_stride,
int  width,
int  height,
int  log2_scale 
)
static

Definition at line 155 of file vf_uspp.c.

Referenced by filter().

◆ filter()

static void filter ( USPPContext p,
uint8_t dst[3],
uint8_t src[3],
int  dst_stride[3],
int  src_stride[3],
int  width,
int  height,
uint8_t qp_store,
int  qp_stride 
)
static

Definition at line 183 of file vf_uspp.c.

Referenced by filter_frame().

◆ query_formats()

static int query_formats ( AVFilterContext ctx)
static

Definition at line 291 of file vf_uspp.c.

◆ config_input()

static int config_input ( AVFilterLink inlink)
static

Definition at line 309 of file vf_uspp.c.

◆ filter_frame()

static int filter_frame ( AVFilterLink inlink,
AVFrame in 
)
static

Definition at line 380 of file vf_uspp.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 461 of file vf_uspp.c.

Variable Documentation

◆ uspp_options

const AVOption uspp_options[]
static
Initial value:
= {
{ "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, FLAGS },
{ "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
{ "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL,{.i64 = 0}, 0, 1, FLAGS },
{ NULL }
}

Definition at line 61 of file vf_uspp.c.

◆ dither

const uint8_t dither[8][8]
static
Initial value:
= {
{ 0*4, 48*4, 12*4, 60*4, 3*4, 51*4, 15*4, 63*4, },
{ 32*4, 16*4, 44*4, 28*4, 35*4, 19*4, 47*4, 31*4, },
{ 8*4, 56*4, 4*4, 52*4, 11*4, 59*4, 7*4, 55*4, },
{ 40*4, 24*4, 36*4, 20*4, 43*4, 27*4, 39*4, 23*4, },
{ 2*4, 50*4, 14*4, 62*4, 1*4, 49*4, 13*4, 61*4, },
{ 34*4, 18*4, 46*4, 30*4, 33*4, 17*4, 45*4, 29*4, },
{ 10*4, 58*4, 6*4, 54*4, 9*4, 57*4, 5*4, 53*4, },
{ 42*4, 26*4, 38*4, 22*4, 41*4, 25*4, 37*4, 21*4, },
}

Definition at line 70 of file vf_uspp.c.

Referenced by store_slice_c().

◆ offset

const uint8_t offset[511][2]
static

Definition at line 81 of file vf_uspp.c.

Referenced by filter().

◆ uspp_inputs

const AVFilterPad uspp_inputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_input,
.filter_frame = filter_frame,
},
{ NULL }
}

Definition at line 481 of file vf_uspp.c.

◆ uspp_outputs

const AVFilterPad uspp_outputs[]
static
Initial value:
= {
{
.name = "default",
},
{ NULL }
}

Definition at line 491 of file vf_uspp.c.

◆ ff_vf_uspp

AVFilter ff_vf_uspp
Initial value:
= {
.name = "uspp",
.description = NULL_IF_CONFIG_SMALL("Apply Ultra Simple / Slow Post-processing filter."),
.priv_size = sizeof(USPPContext),
.priv_class = &uspp_class,
}

Definition at line 499 of file vf_uspp.c.

uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_uspp.c:461
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_uspp.c:380
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_uspp.c:309
x
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 x
Definition: fate.txt:150
uspp_outputs
static const AVFilterPad uspp_outputs[]
Definition: vf_uspp.c:491
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
NULL
#define NULL
Definition: coverity.c:32
src
#define src
Definition: vp8dsp.c:254
inputs
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
Definition: filter_design.txt:243
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:186
MAX_LEVEL
#define MAX_LEVEL
Definition: vf_uspp.c:37
USPPContext
Definition: vf_uspp.c:40
pos
unsigned int pos
Definition: spdifenc.c:410
uspp_inputs
static const AVFilterPad uspp_inputs[]
Definition: vf_uspp.c:481
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:223
temp
else temp
Definition: vf_mcdeint.c:256
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_uspp.c:291
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
FLAGS
#define FLAGS
Definition: vf_uspp.c:60
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:240
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:133
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:564
OFFSET
#define OFFSET(x)
Definition: vf_uspp.c:59