avf_showspatial.c File Reference

#include <math.h>
#include "libavutil/mem.h"
#include "libavutil/tx.h"
#include "libavutil/audio_fifo.h"
#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/opt.h"
#include "audio.h"
#include "formats.h"
#include "video.h"
#include "avfilter.h"
#include "filters.h"
#include "window_func.h"

Go to the source code of this file.

Data Structures
struct	ShowSpatialContext

Macros
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
#define	RE(y, ch)
#define	IM(y, ch)

Functions
	AVFILTER_DEFINE_CLASS (showspatial)
static av_cold void	uninit (AVFilterContext *ctx)
static int	query_formats (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
static int	run_channel_fft (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	config_output (AVFilterLink *outlink)
static void	draw_dot (uint8_t *dst, int linesize, int value)
static int	draw_spatial (AVFilterLink *inlink, AVFrame *insamples)
static int	spatial_activate (AVFilterContext *ctx)

Variables
static const AVOption	showspatial_options []
static const AVFilterPad	showspatial_outputs []
const FFFilter	ff_avf_showspatial

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(ShowSpatialContext, x)

Definition at line 54 of file avf_showspatial.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 55 of file avf_showspatial.c.

RE

#define RE	(		y,
			ch )

Value:

s->fft_data[ch][y].re

Definition at line 190 of file avf_showspatial.c.

Referenced by draw_spatial().

IM

#define IM	(		y,
			ch )

Value:

s->fft_data[ch][y].im

Definition at line 191 of file avf_showspatial.c.

Referenced by draw_spatial().

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

showspatial

)

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 69 of file avf_showspatial.c.

query_formats()

static int query_formats ( const AVFilterContext * ctx, AVFilterFormatsConfig ** cfg_in, AVFilterFormatsConfig ** cfg_out )

static

Definition at line 83 of file avf_showspatial.c.

run_channel_fft()

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

static

Definition at line 108 of file avf_showspatial.c.

Referenced by spatial_activate().

config_output()

static int config_output ( AVFilterLink * outlink )

static

Definition at line 126 of file avf_showspatial.c.

draw_dot()

static void draw_dot ( uint8_t * dst, int linesize, int value )

static

Definition at line 193 of file avf_showspatial.c.

Referenced by draw_spatial().

draw_spatial()

static int draw_spatial ( AVFilterLink * inlink, AVFrame * insamples )

static

Definition at line 202 of file avf_showspatial.c.

Referenced by spatial_activate().

spatial_activate()

static int spatial_activate ( AVFilterContext * ctx )

static

Definition at line 253 of file avf_showspatial.c.

Variable Documentation

showspatial_options

const AVOption showspatial_options[]

static

Initial value:

= {
    { "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "512x512"}, 0, 0, FLAGS },
    { "s",    "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "512x512"}, 0, 0, FLAGS },
    { "win_size", "set window size", OFFSET(win_size), AV_OPT_TYPE_INT, {.i64 = 4096}, 1024, 65536, FLAGS },
    WIN_FUNC_OPTION("win_func", OFFSET(win_func), FLAGS, WFUNC_HANNING),
    { "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS },
    { "r",    "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS },
    { NULL }
}

Definition at line 57 of file avf_showspatial.c.

showspatial_outputs

const AVFilterPad showspatial_outputs[]

static

Initial value:

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

Definition at line 316 of file avf_showspatial.c.

ff_avf_showspatial

const FFFilter ff_avf_showspatial

Initial value:

= {
    .p.name        = "showspatial",
    .p.description = NULL_IF_CONFIG_SMALL("Convert input audio to a spatial video output."),
    .p.priv_class  = &showspatial_class,
    .p.flags       = AVFILTER_FLAG_SLICE_THREADS,
    .uninit        = uninit,
    .priv_size     = sizeof(ShowSpatialContext),
    FILTER_INPUTS(ff_audio_default_filterpad),
    FILTER_OUTPUTS(showspatial_outputs),
    FILTER_QUERY_FUNC2(query_formats),
    .activate      = spatial_activate,
}

Definition at line 324 of file avf_showspatial.c.