vf_datascope.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/xga_font_data.h"
#include "avfilter.h"
#include "drawutils.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	DatascopeContext
struct	ThreadData

Macros
#define	OFFSET(x)   offsetof(DatascopeContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Functions
	AVFILTER_DEFINE_CLASS (datascope)
static int	query_formats (AVFilterContext *ctx)
static void	draw_text (DatascopeContext *s, AVFrame *frame, FFDrawColor *color, int x0, int y0, const uint8_t *text, int vertical)
static void	pick_color (FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
static void	reverse_color (FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse)
static int	filter_color2 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_color (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_mono (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static int	config_input (AVFilterLink *inlink)
static int	config_output (AVFilterLink *outlink)

Variables
static const AVOption	datascope_options []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
AVFilter	ff_vf_datascope

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(DatascopeContext, x)

Definition at line 52 of file vf_datascope.c.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 53 of file vf_datascope.c.

Function Documentation

AVFILTER_DEFINE_CLASS

(

datascope

)

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 70 of file vf_datascope.c.

static void draw_text ( DatascopeContext *  s, AVFrame *  frame, FFDrawColor *  color, int  x0, int  y0, const uint8_t *  text, int  vertical  )

static

Definition at line 75 of file vf_datascope.c.

Referenced by filter_color(), filter_color2(), filter_frame(), and filter_mono().

static void pick_color ( FFDrawContext *  draw, FFDrawColor *  color, AVFrame *  in, int  x, int  y, int *  value  )

static

Definition at line 98 of file vf_datascope.c.

Referenced by filter_color(), filter_color2(), and filter_mono().

static void reverse_color ( FFDrawContext *  draw, FFDrawColor *  color, FFDrawColor *  reverse  )

static

Definition at line 128 of file vf_datascope.c.

Referenced by filter_color2().

static int filter_color2 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 156 of file vf_datascope.c.

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

static

Definition at line 198 of file vf_datascope.c.

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

static

Definition at line 236 of file vf_datascope.c.

static int filter_frame ( AVFilterLink *  inlink, AVFrame *  in  )

static

Definition at line 273 of file vf_datascope.c.

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 337 of file vf_datascope.c.

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 359 of file vf_datascope.c.

Variable Documentation

const AVOption datascope_options[]

static

Initial value:

= {
    { "size", "set output size", OFFSET(ow),   AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
    { "s",    "set output size", OFFSET(ow),   AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
    { "x",    "set x offset", OFFSET(x),    AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
    { "y",    "set y offset", OFFSET(y),    AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
    { "mode", "set scope mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 2, FLAGS, "mode" },
    {   "mono",   NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "mode" },
    {   "color",  NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "mode" },
    {   "color2", NULL, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "mode" },
    { "axis",    "draw column/row numbers", OFFSET(axis), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
    { NULL }
}

Definition at line 55 of file vf_datascope.c.

const AVFilterPad inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = filter_frame,
        .config_props = config_input,
    },
    { NULL }
}

Definition at line 370 of file vf_datascope.c.

const AVFilterPad outputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = config_output,
    },
    { NULL }
}

Definition at line 380 of file vf_datascope.c.

AVFilter ff_vf_datascope

Initial value:

= {
    .name          = "datascope",
    .description   = NULL_IF_CONFIG_SMALL("Video data analysis."),
    .priv_size     = sizeof(DatascopeContext),
    .priv_class    = &datascope_class,
    .query_formats = query_formats,
    .inputs        = inputs,
    .outputs       = outputs,
    .flags         = AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 389 of file vf_datascope.c.