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vf_amplify.c File Reference
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.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  AmplifyContext
struct  ThreadData
 Used for passing data between threads. More...


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


static int query_formats (AVFilterContext *ctx)
static av_cold int init (AVFilterContext *ctx)
static int amplify_frame (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int config_output (AVFilterLink *outlink)
static av_cold void uninit (AVFilterContext *ctx)
static int filter_frame (AVFilterLink *inlink, AVFrame *in)


static const AVOption amplify_options []
static const AVFilterPad inputs []
static const AVFilterPad outputs []
AVFilter ff_vf_amplify

Macro Definition Documentation

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

Definition at line 267 of file vf_amplify.c.

Definition at line 268 of file vf_amplify.c.

Function Documentation

static int query_formats ( AVFilterContext ctx)

Definition at line 52 of file vf_amplify.c.

static av_cold int init ( AVFilterContext ctx)

Definition at line 81 of file vf_amplify.c.

static int amplify_frame ( AVFilterContext ctx,
void arg,
int  jobnr,
int  nb_jobs 

Definition at line 98 of file vf_amplify.c.

Referenced by filter_frame().

static int config_output ( AVFilterLink outlink)

Definition at line 203 of file vf_amplify.c.

static av_cold void uninit ( AVFilterContext ctx)

Definition at line 225 of file vf_amplify.c.

static int filter_frame ( AVFilterLink inlink,
AVFrame in 

Definition at line 237 of file vf_amplify.c.


Variable Documentation

const AVOption amplify_options[]
Initial value:
= {
{ "radius", "set radius", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=2}, 1, 63, .flags = FLAGS },
{ "factor", "set factor", OFFSET(factor), AV_OPT_TYPE_FLOAT, {.dbl=2}, 0, UINT16_MAX, .flags = FLAGS },
{ "threshold", "set threshold", OFFSET(threshold), AV_OPT_TYPE_FLOAT, {.dbl=10}, 0, UINT16_MAX, .flags = FLAGS },
{ "low", "set low limit for amplification", OFFSET(llimit), AV_OPT_TYPE_INT, {.i64=UINT16_MAX}, 0, UINT16_MAX, .flags = FLAGS },
{ "high", "set high limit for amplification", OFFSET(hlimit), AV_OPT_TYPE_INT, {.i64=UINT16_MAX}, 0, UINT16_MAX, .flags = FLAGS },
{ "planes", "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=7}, 0, 15, FLAGS },
{ NULL },
#define NULL
Definition: coverity.c:32
#define OFFSET(x)
Definition: vf_amplify.c:267
#define FLAGS
Definition: vf_amplify.c:268
static const struct @304 planes[]
static const int factor[16]
Definition: vf_pp7.c:75

Definition at line 270 of file vf_amplify.c.

const AVFilterPad inputs[]
Initial value:
= {
.name = "default",
.filter_frame = filter_frame,
{ NULL }
#define NULL
Definition: coverity.c:32
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_amplify.c:237

Definition at line 280 of file vf_amplify.c.

const AVFilterPad outputs[]
Initial value:
= {
.name = "default",
.config_props = config_output,
{ NULL }
#define NULL
Definition: coverity.c:32
static int config_output(AVFilterLink *outlink)
Definition: vf_amplify.c:203

Definition at line 289 of file vf_amplify.c.

AVFilter ff_vf_amplify
Initial value:
= {
.name = "amplify",
.description = NULL_IF_CONFIG_SMALL("Amplify changes between successive video frames."),
.priv_size = sizeof(AmplifyContext),
.priv_class = &amplify_class,
.init = init,
static const AVFilterPad inputs[]
Definition: vf_amplify.c:280
static av_cold int init(AVFilterContext *ctx)
Definition: vf_amplify.c:81
static int query_formats(AVFilterContext *ctx)
Definition: vf_amplify.c:52
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_amplify.c:225
static const AVFilterPad outputs[]
Definition: vf_amplify.c:289
#define flags(name, subs,...)
Definition: cbs_av1.c:596

Definition at line 300 of file vf_amplify.c.