FFmpeg
Data Structures | Macros | Enumerations | Functions | Variables
vf_deblock.c File Reference
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  DeblockContext
 

Macros

#define WEAK_HFILTER(name, type, ldiv)
 
#define WEAK_VFILTER(name, type, ldiv)
 
#define STRONG_HFILTER(name, type, ldiv)
 
#define STRONG_VFILTER(name, type, ldiv)
 
#define OFFSET(x)   offsetof(DeblockContext, x)
 
#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 

Enumerations

enum  FilterType {
  DC_TYPE, AC_TYPE, SQ_TYPE, PS_TYPE,
  NB_TYPES, BUTTERWORTH, CHEBYSHEV1, CHEBYSHEV2,
  NB_TYPES, biquad, equalizer, bass,
  treble, bandpass, bandreject, allpass,
  highpass, lowpass, lowshelf, highshelf,
  WEAK, STRONG, NB_FILTER, LOWPASS,
  FLAT, AFLAT, CHROMA, COLOR,
  ACOLOR, XFLAT, YFLAT, NB_FILTERS
}
 

Functions

static int query_formats (AVFilterContext *ctx)
 
static int config_output (AVFilterLink *outlink)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 
static int process_command (AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
 
 AVFILTER_DEFINE_CLASS (deblock)
 

Variables

static const AVOption deblock_options []
 
static const AVFilterPad inputs []
 
static const AVFilterPad outputs []
 
AVFilter ff_vf_deblock
 

Macro Definition Documentation

#define WEAK_HFILTER (   name,
  type,
  ldiv 
)

Definition at line 93 of file vf_deblock.c.

#define WEAK_VFILTER (   name,
  type,
  ldiv 
)

Definition at line 132 of file vf_deblock.c.

#define STRONG_HFILTER (   name,
  type,
  ldiv 
)

Definition at line 173 of file vf_deblock.c.

#define STRONG_VFILTER (   name,
  type,
  ldiv 
)

Definition at line 219 of file vf_deblock.c.

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

Definition at line 382 of file vf_deblock.c.

Definition at line 383 of file vf_deblock.c.

Enumeration Type Documentation

enum FilterType
Enumerator
DC_TYPE 
AC_TYPE 
SQ_TYPE 
PS_TYPE 
NB_TYPES 
BUTTERWORTH 
CHEBYSHEV1 
CHEBYSHEV2 
NB_TYPES 
biquad 
equalizer 
bass 
treble 
bandpass 
bandreject 
allpass 
highpass 
lowpass 
lowshelf 
highshelf 
WEAK 
STRONG 
NB_FILTER 
LOWPASS 
FLAT 
AFLAT 
CHROMA 
COLOR 
ACOLOR 
XFLAT 
YFLAT 
NB_FILTERS 

Definition at line 34 of file vf_deblock.c.

Function Documentation

static int query_formats ( AVFilterContext ctx)
static

Definition at line 64 of file vf_deblock.c.

static int config_output ( AVFilterLink outlink)
static

Definition at line 267 of file vf_deblock.c.

Referenced by process_command().

static int filter_frame ( AVFilterLink inlink,
AVFrame in 
)
static

Definition at line 309 of file vf_deblock.c.

static int process_command ( AVFilterContext ctx,
const char *  cmd,
const char *  args,
char *  res,
int  res_len,
int  flags 
)
static

Definition at line 370 of file vf_deblock.c.

AVFILTER_DEFINE_CLASS ( deblock  )

Variable Documentation

const AVOption deblock_options[]
static
Initial value:
= {
{ "filter", "set type of filter", OFFSET(filter), AV_OPT_TYPE_INT, {.i64=STRONG},0, 1, FLAGS, "filter" },
{ "weak", 0, 0, AV_OPT_TYPE_CONST, {.i64=WEAK}, 0, 0, FLAGS, "filter" },
{ "strong", 0, 0, AV_OPT_TYPE_CONST, {.i64=STRONG},0, 0, FLAGS, "filter" },
{ "block", "set size of block", OFFSET(block), AV_OPT_TYPE_INT, {.i64=8}, 4, 512, FLAGS },
{ "alpha", "set 1st detection threshold", OFFSET(alpha), AV_OPT_TYPE_FLOAT, {.dbl=.098}, 0, 1, FLAGS },
{ "beta", "set 2nd detection threshold", OFFSET(beta), AV_OPT_TYPE_FLOAT, {.dbl=.05}, 0, 1, FLAGS },
{ "gamma", "set 3rd detection threshold", OFFSET(gamma), AV_OPT_TYPE_FLOAT, {.dbl=.05}, 0, 1, FLAGS },
{ "delta", "set 4th detection threshold", OFFSET(delta), AV_OPT_TYPE_FLOAT, {.dbl=.05}, 0, 1, FLAGS },
{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, FLAGS },
{ NULL },
}
#define NULL
Definition: coverity.c:32
static const struct @322 planes[]
The exact code depends on how similar the blocks are and how related they are to the block
float delta
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce then the filter should push the output frames on the output link immediately As an exception to the previous rule if the input frame is enough to produce several output frames then the filter needs output only at least one per link The additional frames can be left buffered in the filter
static const int16_t alpha[]
Definition: ilbcdata.h:55
#define FLAGS
Definition: vf_deblock.c:383
#define OFFSET(x)
Definition: vf_deblock.c:382

Definition at line 385 of file vf_deblock.c.

const AVFilterPad inputs[]
static
Initial value:
= {
{
.name = "default",
.filter_frame = filter_frame,
},
{ NULL }
}
#define NULL
Definition: coverity.c:32
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_deblock.c:309

Definition at line 398 of file vf_deblock.c.

const AVFilterPad outputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_output,
},
{ NULL }
}
#define NULL
Definition: coverity.c:32
static int config_output(AVFilterLink *outlink)
Definition: vf_deblock.c:267

Definition at line 407 of file vf_deblock.c.

AVFilter ff_vf_deblock
Initial value:
= {
.name = "deblock",
.description = NULL_IF_CONFIG_SMALL("Deblock video."),
.priv_size = sizeof(DeblockContext),
.priv_class = &deblock_class,
}
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:126
static const AVFilterPad inputs[]
Definition: vf_deblock.c:398
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:115
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_deblock.c:370
static const AVFilterPad outputs[]
Definition: vf_deblock.c:407
#define flags(name, subs,...)
Definition: cbs_av1.c:561
static int query_formats(AVFilterContext *ctx)
Definition: vf_deblock.c:64

Definition at line 418 of file vf_deblock.c.