vf_bitplanenoise.c File Reference

#include "libavutil/opt.h"
#include "libavutil/imgutils.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	BPNContext

Macros
#define	OFFSET(x)   offsetof(BPNContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
#define	CHECK_BIT(x, a, b, c)

Functions
	AVFILTER_DEFINE_CLASS (bitplanenoise)
static int	config_input (AVFilterLink *inlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)

Variables
static const AVOption	bitplanenoise_options []
static enum AVPixelFormat	pixfmts []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
const AVFilter	ff_vf_bitplanenoise

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(BPNContext, x)

Definition at line 40 of file vf_bitplanenoise.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 41 of file vf_bitplanenoise.c.

CHECK_BIT

#define CHECK_BIT	(		x,
			a,
			b,
			c
	)

Value:

    { \
    bit = (((val[(x)] & mask) == (val[(x) + (a)] & mask)) + \
           ((val[(x)] & mask) == (val[(x) + (b)] & mask)) + \
           ((val[(x)] & mask) == (val[(x) + (c)] & mask))) > 1; \
    if (dst) \
        dst[(x)] = factor * bit; \
    stats[plane] += bit; }

Definition at line 86 of file vf_bitplanenoise.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

bitplanenoise

)

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 68 of file vf_bitplanenoise.c.

filter_frame()

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

static

Definition at line 94 of file vf_bitplanenoise.c.

Variable Documentation

bitplanenoise_options

const AVOption bitplanenoise_options[]

static

Initial value:

= {
    { "bitplane", "set bit plane to use for measuring noise",  OFFSET(bitplane), AV_OPT_TYPE_INT,  {.i64=1}, 1, 16, FLAGS},
    { "filter",   "show noisy pixels",                         OFFSET(filter),   AV_OPT_TYPE_BOOL, {.i64=0}, 0,  1, FLAGS},
    { NULL }
}

Definition at line 42 of file vf_bitplanenoise.c.

pixfmts

enum AVPixelFormat pixfmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV411P,
    AV_PIX_FMT_YUV440P,
    AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ411P,
    AV_PIX_FMT_YUVJ440P,
    AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV420P9,
    AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV420P10,
    AV_PIX_FMT_YUV440P10,
    AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
    AV_PIX_FMT_YUV440P12,
    AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
    AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV420P16,
    AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
    AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
    AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
    AV_PIX_FMT_NONE
}

Definition at line 50 of file vf_bitplanenoise.c.

inputs

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 191 of file vf_bitplanenoise.c.

outputs

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 200 of file vf_bitplanenoise.c.

ff_vf_bitplanenoise

const AVFilter ff_vf_bitplanenoise

Initial value:

= {
    .name           = "bitplanenoise",
    .description    = NULL_IF_CONFIG_SMALL("Measure bit plane noise."),
    .priv_size      = sizeof(BPNContext),
    FILTER_INPUTS(inputs),
    FILTER_OUTPUTS(outputs),
    FILTER_PIXFMTS_ARRAY(pixfmts),
    .priv_class     = &bitplanenoise_class,
    .flags          = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
}

Definition at line 207 of file vf_bitplanenoise.c.