FFmpeg
Data Structures | Macros | Enumerations | Functions | Variables
vf_signalstats.c File Reference
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "internal.h"

Go to the source code of this file.

Data Structures

struct  SignalstatsContext
 
struct  ThreadData
 Used for passing data between threads. More...
 
struct  ThreadDataHueSatMetrics
 

Macros

#define OFFSET(x)   offsetof(SignalstatsContext, x)
 
#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 
#define FILTER(i, j)
 
#define FILTER3(j)   (FILTER(-1, j) && FILTER(0, j) && FILTER(1, j))
 
#define VREP_START   4
 
#define DEPTH   256
 
#define SET_META(key, fmt, val)
 

Enumerations

enum  FilterMode {
  FILTER_8TAP_SMOOTH, FILTER_8TAP_REGULAR, FILTER_8TAP_SHARP, FILTER_BILINEAR,
  N_FILTERS, FILTER_SWITCHABLE = N_FILTERS, MODE_WIRES, MODE_COLORMIX,
  MODE_CANNY, NB_MODE, MODE_NONE, MODE_INTERLEAVE,
  MODE_DEINTERLEAVE, FILTER_NONE = -1, FILTER_TOUT, FILTER_VREP,
  FILTER_BRNG, FILT_NUMB
}
 

Functions

 AVFILTER_DEFINE_CLASS (signalstats)
 
static av_cold int init (AVFilterContext *ctx)
 
static av_cold void uninit (AVFilterContext *ctx)
 
static int query_formats (AVFilterContext *ctx)
 
static AVFramealloc_frame (enum AVPixelFormat pixfmt, int w, int h)
 
static int config_props (AVFilterLink *outlink)
 
static void burn_frame8 (const SignalstatsContext *s, AVFrame *f, int x, int y)
 
static void burn_frame16 (const SignalstatsContext *s, AVFrame *f, int x, int y)
 
static int filter8_brng (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int filter16_brng (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int filter_tout_outlier (uint8_t x, uint8_t y, uint8_t z)
 
static int filter8_tout (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int filter16_tout (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int filter8_vrep (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int filter16_vrep (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int compute_sat_hue_metrics8 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int compute_sat_hue_metrics16 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static unsigned compute_bit_depth (uint16_t mask)
 
static int filter_frame8 (AVFilterLink *link, AVFrame *in)
 
static int filter_frame16 (AVFilterLink *link, AVFrame *in)
 
static int filter_frame (AVFilterLink *link, AVFrame *in)
 

Variables

static const AVOption signalstats_options []
 
struct {
   const char *   name
 
   int(*   process8 )(AVFilterContext *ctx, void
      *arg, int jobnr, int nb_jobs)
 
   int(*   process16 )(AVFilterContext *ctx, void
      *arg, int jobnr, int nb_jobs)
 
filters_def []
 
static const AVFilterPad signalstats_inputs []
 
static const AVFilterPad signalstats_outputs []
 
AVFilter ff_vf_signalstats
 

Macro Definition Documentation

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

Definition at line 69 of file vf_signalstats.c.

Definition at line 70 of file vf_signalstats.c.

#define FILTER (   i,
 
)
Value:
filter_tout_outlier(p[(y-j) * lw + x + i], \
p[ y * lw + x + i], \
p[(y+j) * lw + x + i])
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
static int filter_tout_outlier(uint8_t x, uint8_t y, uint8_t z)
#define FILTER3 (   j)    (FILTER(-1, j) && FILTER(0, j) && FILTER(1, j))

Referenced by filter16_tout(), and filter8_tout().

#define VREP_START   4

Definition at line 383 of file vf_signalstats.c.

Referenced by filter16_vrep(), and filter8_vrep().

#define DEPTH   256

Definition at line 465 of file vf_signalstats.c.

Referenced by filter_frame8().

#define SET_META (   key,
  fmt,
  val 
)
Value:
do { \
snprintf(metabuf, sizeof(metabuf), fmt, val); \
av_dict_set(&out->metadata, "lavfi.signalstats." key, metabuf, 0); \
} while (0)
const char const char void * val
Definition: avisynth_c.h:863
const char * fmt
Definition: avisynth_c.h:861
const char * key
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
#define snprintf
Definition: snprintf.h:34
FILE * out
Definition: movenc.c:54

Referenced by filter_frame16(), and filter_frame8().

Enumeration Type Documentation

enum FilterMode
Enumerator
FILTER_8TAP_SMOOTH 
FILTER_8TAP_REGULAR 
FILTER_8TAP_SHARP 
FILTER_BILINEAR 
N_FILTERS 
FILTER_SWITCHABLE 
MODE_WIRES 
MODE_COLORMIX 
MODE_CANNY 
NB_MODE 
MODE_NONE 
MODE_INTERLEAVE 
MODE_DEINTERLEAVE 
FILTER_NONE 
FILTER_TOUT 
FILTER_VREP 
FILTER_BRNG 
FILT_NUMB 

Definition at line 28 of file vf_signalstats.c.

Function Documentation

AVFILTER_DEFINE_CLASS ( signalstats  )
static av_cold int init ( AVFilterContext ctx)
static

Definition at line 88 of file vf_signalstats.c.

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 105 of file vf_signalstats.c.

static int query_formats ( AVFilterContext ctx)
static

Definition at line 118 of file vf_signalstats.c.

static AVFrame* alloc_frame ( enum AVPixelFormat  pixfmt,
int  w,
int  h 
)
static

Definition at line 142 of file vf_signalstats.c.

Referenced by config_props().

static int config_props ( AVFilterLink outlink)
static

Definition at line 160 of file vf_signalstats.c.

static void burn_frame8 ( const SignalstatsContext s,
AVFrame f,
int  x,
int  y 
)
static

Definition at line 201 of file vf_signalstats.c.

Referenced by filter8_brng(), filter8_tout(), and filter8_vrep().

static void burn_frame16 ( const SignalstatsContext s,
AVFrame f,
int  x,
int  y 
)
static

Definition at line 210 of file vf_signalstats.c.

Referenced by filter16_brng(), filter16_tout(), and filter16_vrep().

static int filter8_brng ( AVFilterContext ctx,
void arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 220 of file vf_signalstats.c.

static int filter16_brng ( AVFilterContext ctx,
void arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 254 of file vf_signalstats.c.

static int filter_tout_outlier ( uint8_t  x,
uint8_t  y,
uint8_t  z 
)
static

Definition at line 289 of file vf_signalstats.c.

static int filter8_tout ( AVFilterContext ctx,
void arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 294 of file vf_signalstats.c.

static int filter16_tout ( AVFilterContext ctx,
void arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 342 of file vf_signalstats.c.

static int filter8_vrep ( AVFilterContext ctx,
void arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 385 of file vf_signalstats.c.

static int filter16_vrep ( AVFilterContext ctx,
void arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 419 of file vf_signalstats.c.

static int compute_sat_hue_metrics8 ( AVFilterContext ctx,
void arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 467 of file vf_signalstats.c.

Referenced by filter_frame8().

static int compute_sat_hue_metrics16 ( AVFilterContext ctx,
void arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 505 of file vf_signalstats.c.

Referenced by filter_frame16().

static unsigned compute_bit_depth ( uint16_t  mask)
static

Definition at line 544 of file vf_signalstats.c.

Referenced by filter_frame16(), and filter_frame8().

static int filter_frame8 ( AVFilterLink link,
AVFrame in 
)
static

Definition at line 549 of file vf_signalstats.c.

Referenced by filter_frame().

static int filter_frame16 ( AVFilterLink link,
AVFrame in 
)
static

Definition at line 767 of file vf_signalstats.c.

Referenced by filter_frame().

static int filter_frame ( AVFilterLink link,
AVFrame in 
)
static

Definition at line 984 of file vf_signalstats.c.

Variable Documentation

const AVOption signalstats_options[]
static
Initial value:
= {
{"stat", "set statistics filters", OFFSET(filters), AV_OPT_TYPE_FLAGS, {.i64=0}, 0, INT_MAX, FLAGS, "filters"},
{"tout", "analyze pixels for temporal outliers", 0, AV_OPT_TYPE_CONST, {.i64=1<<FILTER_TOUT}, 0, 0, FLAGS, "filters"},
{"vrep", "analyze video lines for vertical line repetition", 0, AV_OPT_TYPE_CONST, {.i64=1<<FILTER_VREP}, 0, 0, FLAGS, "filters"},
{"brng", "analyze for pixels outside of broadcast range", 0, AV_OPT_TYPE_CONST, {.i64=1<<FILTER_BRNG}, 0, 0, FLAGS, "filters"},
{"out", "set video filter", OFFSET(outfilter), AV_OPT_TYPE_INT, {.i64=FILTER_NONE}, -1, FILT_NUMB-1, FLAGS, "out"},
{"tout", "highlight pixels that depict temporal outliers", 0, AV_OPT_TYPE_CONST, {.i64=FILTER_TOUT}, 0, 0, FLAGS, "out"},
{"vrep", "highlight video lines that depict vertical line repetition", 0, AV_OPT_TYPE_CONST, {.i64=FILTER_VREP}, 0, 0, FLAGS, "out"},
{"brng", "highlight pixels that are outside of broadcast range", 0, AV_OPT_TYPE_CONST, {.i64=FILTER_BRNG}, 0, 0, FLAGS, "out"},
{"c", "set highlight color", OFFSET(rgba_color), AV_OPT_TYPE_COLOR, {.str="yellow"}, .flags=FLAGS},
{"color", "set highlight color", OFFSET(rgba_color), AV_OPT_TYPE_COLOR, {.str="yellow"}, .flags=FLAGS},
{NULL}
}
#define NULL
Definition: coverity.c:32
#define OFFSET(x)
#define FLAGS
static const struct PPFilter filters[]
Definition: postprocess.c:134

Definition at line 72 of file vf_signalstats.c.

const char* name

Definition at line 455 of file vf_signalstats.c.

int(* process8) (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)

Definition at line 456 of file vf_signalstats.c.

Referenced by filter_frame8().

int(* process16) (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)

Definition at line 457 of file vf_signalstats.c.

Referenced by filter_frame16().

const { ... } filters_def[]
Initial value:
= {
{NULL}
}
#define NULL
Definition: coverity.c:32
static int filter16_tout(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int filter16_brng(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int filter16_vrep(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int filter8_vrep(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int filter8_tout(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int filter8_brng(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)

Referenced by filter_frame16(), and filter_frame8().

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

Definition at line 995 of file vf_signalstats.c.

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

Definition at line 1004 of file vf_signalstats.c.

AVFilter ff_vf_signalstats
Initial value:
= {
.name = "signalstats",
.description = "Generate statistics from video analysis.",
.init = init,
.uninit = uninit,
.query_formats = query_formats,
.priv_size = sizeof(SignalstatsContext),
.priv_class = &signalstats_class,
}
static av_cold void uninit(AVFilterContext *ctx)
static const AVFilterPad signalstats_outputs[]
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
static const AVFilterPad signalstats_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
#define flags(name, subs,...)
Definition: cbs_av1.c:561
static int query_formats(AVFilterContext *ctx)
static av_cold int init(AVFilterContext *ctx)

Definition at line 1013 of file vf_signalstats.c.