vf_convolve.c File Reference

#include <float.h>
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavcodec/avfft.h"
#include "avfilter.h"
#include "formats.h"
#include "framesync.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	ConvolveContext
struct	ThreadData
	Used for passing data between threads. More...

Macros
#define	MAX_THREADS   16
#define	OFFSET(x)   offsetof(ConvolveContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Functions
static int	query_formats (AVFilterContext *ctx)
static int	config_input_main (AVFilterLink *inlink)
static int	config_input_impulse (AVFilterLink *inlink)
static int	fft_horizontal (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static void	get_input (ConvolveContext *s, FFTComplex *fft_hdata, AVFrame *in, int w, int h, int n, int plane, float scale)
static int	fft_vertical (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	ifft_vertical (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	ifft_horizontal (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static void	get_output (ConvolveContext *s, FFTComplex *input, AVFrame *out, int w, int h, int n, int plane, float scale)
static int	complex_multiply (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	complex_divide (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	do_convolve (FFFrameSync *fs)
static int	config_output (AVFilterLink *outlink)
static int	activate (AVFilterContext *ctx)
static av_cold int	init (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	convolve_options []
static const AVFilterPad	convolve_inputs []
static const AVFilterPad	convolve_outputs []

Macro Definition Documentation

#define MAX_THREADS   16

Definition at line 34 of file vf_convolve.c.

Referenced by config_output(), do_convolve(), and uninit().

#define OFFSET

(

x

)

offsetof(ConvolveContext, x)

Definition at line 63 of file vf_convolve.c.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 64 of file vf_convolve.c.

Function Documentation

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 75 of file vf_convolve.c.

static int config_input_main ( AVFilterLink *  inlink )

static

Definition at line 104 of file vf_convolve.c.

static int config_input_impulse ( AVFilterLink *  inlink )

static

Definition at line 144 of file vf_convolve.c.

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

static

Definition at line 166 of file vf_convolve.c.

Referenced by do_convolve().

static void get_input ( ConvolveContext *  s, FFTComplex *  fft_hdata, AVFrame *  in, int  w, int  h, int  n, int  plane, float  scale  )

static

Definition at line 185 of file vf_convolve.c.

Referenced by do_convolve().

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

static

Definition at line 260 of file vf_convolve.c.

Referenced by do_convolve().

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

static

Definition at line 285 of file vf_convolve.c.

Referenced by do_convolve().

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

static

Definition at line 310 of file vf_convolve.c.

Referenced by do_convolve().

static void get_output ( ConvolveContext *  s, FFTComplex *  input, AVFrame *  out, int  w, int  h, int  n, int  plane, float  scale  )

static

Definition at line 329 of file vf_convolve.c.

Referenced by do_convolve().

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

static

Definition at line 382 of file vf_convolve.c.

Referenced by init().

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

static

Definition at line 413 of file vf_convolve.c.

Referenced by init().

static int do_convolve ( FFFrameSync *  fs )

static

Definition at line 445 of file vf_convolve.c.

Referenced by config_output().

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 527 of file vf_convolve.c.

static int activate ( AVFilterContext *  ctx )

static

Definition at line 559 of file vf_convolve.c.

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 565 of file vf_convolve.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 580 of file vf_convolve.c.

Variable Documentation

const AVOption convolve_options[]

static

Initial value:

= {
    { "planes",  "set planes to convolve",                  OFFSET(planes),   AV_OPT_TYPE_INT,   {.i64=7}, 0, 15, FLAGS },
    { "impulse", "when to process impulses",                OFFSET(impulse),  AV_OPT_TYPE_INT,   {.i64=1}, 0,  1, FLAGS, "impulse" },
    {   "first", "process only first impulse, ignore rest", 0,                AV_OPT_TYPE_CONST, {.i64=0}, 0,  0, FLAGS, "impulse" },
    {   "all",   "process all impulses",                    0,                AV_OPT_TYPE_CONST, {.i64=1}, 0,  0, FLAGS, "impulse" },
    { "noise",   "set noise",                               OFFSET(noise),    AV_OPT_TYPE_FLOAT, {.dbl=0.0000001}, 0,  1, FLAGS },
    { NULL },
}

Definition at line 66 of file vf_convolve.c.

const AVFilterPad convolve_inputs[]

static

Initial value:

= {
    {
        .name          = "main",
        .type          = AVMEDIA_TYPE_VIDEO,
        .config_props  = config_input_main,
    },{
        .name          = "impulse",
        .type          = AVMEDIA_TYPE_VIDEO,
        .config_props  = config_input_impulse,
    },
    { NULL }
}

Definition at line 600 of file vf_convolve.c.

const AVFilterPad convolve_outputs[]

static

Initial value:

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

Definition at line 613 of file vf_convolve.c.