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vf_convolve.c File Reference
#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
 

Macros

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

Functions

 FRAMESYNC_DEFINE_CLASS (convolve, ConvolveContext, fs)
 
static int query_formats (AVFilterContext *ctx)
 
static int config_input_main (AVFilterLink *inlink)
 
static int config_input_impulse (AVFilterLink *inlink)
 
static void fft_horizontal (ConvolveContext *s, FFTComplex *fft_hdata, AVFrame *in, int w, int h, int n, int plane, float scale)
 
static void fft_vertical (ConvolveContext *s, FFTComplex *fft_hdata, FFTComplex *fft_vdata, int n, int plane)
 
static void ifft_vertical (ConvolveContext *s, int n, int plane)
 
static void ifft_horizontal (ConvolveContext *s, AVFrame *out, int w, int h, int n, int plane)
 
static int do_convolve (FFFrameSync *fs)
 
static int config_output (AVFilterLink *outlink)
 
static int activate (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 []
 
AVFilter ff_vf_convolve
 

Macro Definition Documentation

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

Definition at line 56 of file vf_convolve.c.

Definition at line 57 of file vf_convolve.c.

Function Documentation

FRAMESYNC_DEFINE_CLASS ( convolve  ,
ConvolveContext  ,
fs   
)
static int query_formats ( AVFilterContext ctx)
static

Definition at line 69 of file vf_convolve.c.

static int config_input_main ( AVFilterLink inlink)
static

Definition at line 98 of file vf_convolve.c.

static int config_input_impulse ( AVFilterLink inlink)
static

Definition at line 138 of file vf_convolve.c.

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

Definition at line 155 of file vf_convolve.c.

Referenced by do_convolve().

static void fft_vertical ( ConvolveContext s,
FFTComplex fft_hdata,
FFTComplex fft_vdata,
int  n,
int  plane 
)
static

Definition at line 195 of file vf_convolve.c.

Referenced by do_convolve().

static void ifft_vertical ( ConvolveContext s,
int  n,
int  plane 
)
static

Definition at line 214 of file vf_convolve.c.

Referenced by do_convolve().

static void ifft_horizontal ( ConvolveContext s,
AVFrame out,
int  w,
int  h,
int  n,
int  plane 
)
static

Definition at line 228 of file vf_convolve.c.

Referenced by do_convolve().

static int do_convolve ( FFFrameSync fs)
static

Definition at line 257 of file vf_convolve.c.

Referenced by config_output().

static int config_output ( AVFilterLink outlink)
static

Definition at line 331 of file vf_convolve.c.

static int activate ( AVFilterContext ctx)
static

Definition at line 361 of file vf_convolve.c.

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 367 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" },
{ NULL },
}
#define NULL
Definition: coverity.c:32
#define FLAGS
Definition: vf_convolve.c:57
#define OFFSET(x)
Definition: vf_convolve.c:56

Definition at line 59 of file vf_convolve.c.

const AVFilterPad convolve_inputs[]
static
Initial value:
= {
{
.name = "main",
.config_props = config_input_main,
},{
.name = "impulse",
.config_props = config_input_impulse,
},
{ NULL }
}
#define NULL
Definition: coverity.c:32
static int config_input_main(AVFilterLink *inlink)
Definition: vf_convolve.c:98
static int config_input_impulse(AVFilterLink *inlink)
Definition: vf_convolve.c:138

Definition at line 384 of file vf_convolve.c.

const AVFilterPad convolve_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_convolve.c:331

Definition at line 397 of file vf_convolve.c.

AVFilter ff_vf_convolve
Initial value:
= {
.name = "convolve",
.description = NULL_IF_CONFIG_SMALL("Convolve first video stream with second video stream."),
.preinit = convolve_framesync_preinit,
.uninit = uninit,
.query_formats = query_formats,
.activate = activate,
.priv_size = sizeof(ConvolveContext),
.priv_class = &convolve_class,
}
static const AVFilterPad convolve_outputs[]
Definition: vf_convolve.c:397
static int activate(AVFilterContext *ctx)
Definition: vf_convolve.c:361
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_convolve.c:367
static int flags
Definition: log.c:57
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:389
static int query_formats(AVFilterContext *ctx)
Definition: vf_convolve.c:69
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:379
#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:133
static const AVFilterPad convolve_inputs[]
Definition: vf_convolve.c:384

Definition at line 406 of file vf_convolve.c.