FFmpeg
Data Structures | Macros | Functions | Variables
vf_estdif.c File Reference
#include "libavutil/common.h"
#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  ESTDIFContext
 
struct  ThreadData
 Used for passing data between threads. More...
 

Macros

#define MAX_R   15
 
#define S   (MAX_R * 2 + 1)
 
#define OFFSET(x)   offsetof(ESTDIFContext, x)
 
#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 
#define CONST(name, help, val, unit)   { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit }
 
#define MIDL(type, ss)
 
#define MID2(type, ss)
 
#define MID4(type, ss)
 
#define MID6(type, ss)
 
#define DIFF(type, ss)
 
#define COST(type, ss)
 
#define INTERPOLATE(type, atype, max, ss)
 

Functions

 AVFILTER_DEFINE_CLASS (estdif)
 
static int query_formats (AVFilterContext *ctx)
 
static int config_output (AVFilterLink *outlink)
 
static int deinterlace_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int filter (AVFilterContext *ctx, int is_second, AVFrame *in)
 
static int config_input (AVFilterLink *inlink)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 
static int request_frame (AVFilterLink *link)
 
static av_cold void uninit (AVFilterContext *ctx)
 

Variables

static const AVOption estdif_options []
 
static const AVFilterPad estdif_inputs []
 
static const AVFilterPad estdif_outputs []
 
AVFilter ff_vf_estdif
 

Macro Definition Documentation

◆ MAX_R

#define MAX_R   15

Definition at line 75 of file vf_estdif.c.

◆ S

#define S   (MAX_R * 2 + 1)

Definition at line 76 of file vf_estdif.c.

◆ OFFSET

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

Definition at line 78 of file vf_estdif.c.

◆ FLAGS

Definition at line 79 of file vf_estdif.c.

◆ CONST

#define CONST (   name,
  help,
  val,
  unit 
)    { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit }

Definition at line 80 of file vf_estdif.c.

◆ MIDL

#define MIDL (   type,
  ss 
)
Value:
static unsigned midl_##ss(const type *const prev, \
const type *const next, \
int end, int x, int k) \
{ \
return (prev[av_clip(x + k, 0, end)] + \
next[av_clip(x - k, 0, end)] + 1) >> 1; \
}

Definition at line 155 of file vf_estdif.c.

◆ MID2

#define MID2 (   type,
  ss 
)
Value:
static unsigned mid2_##ss(const type *const prev, \
const type *const next, \
const type *const prev2, \
const type *const next2, \
const type *const prev3, \
const type *const next3, \
int end, int x, int k, int depth) \
{ \
return (prev[av_clip(x + k, 0, end)] + \
next[av_clip(x - k, 0, end)] + 1) >> 1; \
}

Definition at line 167 of file vf_estdif.c.

◆ MID4

#define MID4 (   type,
  ss 
)
Value:
static unsigned mid4_##ss(const type *const prev, \
const type *const next, \
const type *const prev2, \
const type *const next2, \
const type *const prev3, \
const type *const next3, \
int end, int x, int k, int depth) \
{ \
return av_clip_uintp2_c(( \
9 * (prev[av_clip(x + k, 0, end)] + \
next[av_clip(x - k, 0, end)]) - \
1 * (prev2[av_clip(x + k*3, 0, end)] + \
next2[av_clip(x - k*3, 0, end)]) + 8) >> 4, \
depth); \
}

Definition at line 183 of file vf_estdif.c.

◆ MID6

#define MID6 (   type,
  ss 
)
Value:
static unsigned mid6_##ss(const type *const prev, \
const type *const next, \
const type *const prev2, \
const type *const next2, \
const type *const prev3, \
const type *const next3, \
int end, int x, int k, int depth) \
{ \
return av_clip_uintp2_c(( \
20 * (prev[av_clip(x + k, 0, end)] + \
next[av_clip(x - k, 0, end)]) - \
5 * (prev2[av_clip(x + k*3, 0, end)] + \
next2[av_clip(x - k*3, 0, end)]) + \
1 * (prev3[av_clip(x + k*5, 0, end)] + \
next3[av_clip(x - k*5, 0, end)]) + 16) >> 5, \
depth); \
}

Definition at line 203 of file vf_estdif.c.

◆ DIFF

#define DIFF (   type,
  ss 
)
Value:
static unsigned diff_##ss(const type *const prev, \
const type *const next, \
int end, int x, int k, int j) \
{ \
return FFABS(prev[av_clip(x + k + j, 0, end)] - \
next[av_clip(x - k + j, 0, end)]); \
}

Definition at line 225 of file vf_estdif.c.

◆ COST

#define COST (   type,
  ss 
)
Value:
static unsigned cost_##ss(const type *const prev, \
const type *const next, \
int end, int x, int k) \
{ \
const int m = midl_##ss(prev, next, end, x, k); \
const int p = prev[x]; \
const int n = next[x]; \
\
return FFABS(p - m) + FFABS(n - m); \
}

Definition at line 237 of file vf_estdif.c.

◆ INTERPOLATE

#define INTERPOLATE (   type,
  atype,
  max,
  ss 
)

Definition at line 252 of file vf_estdif.c.

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( estdif  )

◆ query_formats()

static int query_formats ( AVFilterContext ctx)
static

Definition at line 104 of file vf_estdif.c.

◆ config_output()

static int config_output ( AVFilterLink outlink)
static

Definition at line 138 of file vf_estdif.c.

◆ deinterlace_slice()

static int deinterlace_slice ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 336 of file vf_estdif.c.

Referenced by filter().

◆ filter()

static int filter ( AVFilterContext ctx,
int  is_second,
AVFrame in 
)
static

Definition at line 434 of file vf_estdif.c.

Referenced by filter_frame().

◆ config_input()

static int config_input ( AVFilterLink inlink)
static

Definition at line 458 of file vf_estdif.c.

◆ filter_frame()

static int filter_frame ( AVFilterLink inlink,
AVFrame in 
)
static

Definition at line 492 of file vf_estdif.c.

Referenced by request_frame().

◆ request_frame()

static int request_frame ( AVFilterLink link)
static

Definition at line 525 of file vf_estdif.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 553 of file vf_estdif.c.

Variable Documentation

◆ estdif_options

const AVOption estdif_options[]
static
Initial value:
= {
{ "mode", "specify the mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "mode" },
CONST("frame", "send one frame for each frame", 0, "mode"),
CONST("field", "send one frame for each field", 1, "mode"),
{ "parity", "specify the assumed picture field parity", OFFSET(parity), AV_OPT_TYPE_INT, {.i64=-1}, -1, 1, FLAGS, "parity" },
CONST("tff", "assume top field first", 0, "parity"),
CONST("bff", "assume bottom field first", 1, "parity"),
CONST("auto", "auto detect parity", -1, "parity"),
{ "deint", "specify which frames to deinterlace", OFFSET(deint), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "deint" },
CONST("all", "deinterlace all frames", 0, "deint"),
CONST("interlaced", "only deinterlace frames marked as interlaced", 1, "deint"),
{ "rslope", "specify the search radius for edge slope tracing", OFFSET(rslope), AV_OPT_TYPE_INT, {.i64=1}, 1, MAX_R, FLAGS, },
{ "redge", "specify the search radius for best edge matching", OFFSET(redge), AV_OPT_TYPE_INT, {.i64=2}, 0, MAX_R, FLAGS, },
{ "interp", "specify the type of interpolation", OFFSET(interp), AV_OPT_TYPE_INT, {.i64=1}, 0, 2, FLAGS, "interp" },
CONST("2p", "two-point interpolation", 0, "interp"),
CONST("4p", "four-point interpolation", 1, "interp"),
CONST("6p", "six-point interpolation", 2, "interp"),
{ NULL }
}

Definition at line 82 of file vf_estdif.c.

◆ estdif_inputs

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

Definition at line 560 of file vf_estdif.c.

◆ estdif_outputs

const AVFilterPad estdif_outputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_output,
.request_frame = request_frame,
},
{ NULL }
}

Definition at line 570 of file vf_estdif.c.

◆ ff_vf_estdif

AVFilter ff_vf_estdif
Initial value:
= {
.name = "estdif",
.description = NULL_IF_CONFIG_SMALL("Apply Edge Slope Tracing deinterlace."),
.priv_size = sizeof(ESTDIFContext),
.priv_class = &estdif_class,
}

Definition at line 580 of file vf_estdif.c.

av_clip
#define av_clip
Definition: common.h:122
estdif_inputs
static const AVFilterPad estdif_inputs[]
Definition: vf_estdif.c:560
av_clip_uintp2_c
static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
Clip a signed integer to an unsigned power of two range.
Definition: common.h:302
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_estdif.c:492
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_estdif.c:138
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
ss
#define ss(width, name, subs,...)
Definition: cbs_vp9.c:261
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
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_estdif.c:458
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
NULL
#define NULL
Definition: coverity.c:32
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_estdif.c:553
estdif_outputs
static const AVFilterPad estdif_outputs[]
Definition: vf_estdif.c:570
FLAGS
#define FLAGS
Definition: vf_estdif.c:79
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:117
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: af_acrusher.c:336
parity
mcdeint parity
Definition: vf_mcdeint.c:277
ESTDIFContext
Definition: vf_estdif.c:30
ff_filter_process_command
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options.
Definition: avfilter.c:882
OFFSET
#define OFFSET(x)
Definition: vf_estdif.c:78
MAX_R
#define MAX_R
Definition: vf_estdif.c:75
CONST
#define CONST(name, help, val, unit)
Definition: vf_estdif.c:80
request_frame
static int request_frame(AVFilterLink *link)
Definition: vf_estdif.c:525
mode
mode
Definition: ebur128.h:83
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:117
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_estdif.c:104
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:134
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561