vf_midequalizer.c File Reference

#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "filters.h"
#include "video.h"
#include "framesync.h"

Go to the source code of this file.

Data Structures
struct	MidEqualizerContext

Macros
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Functions
	AVFILTER_DEFINE_CLASS (midequalizer)
static int	process_frame (FFFrameSync *fs)
static void	compute_histogram8 (const uint8_t *src, ptrdiff_t linesize, int w, int h, float *histogram, size_t hsize)
static void	compute_histogram16 (const uint16_t *src, ptrdiff_t linesize, int w, int h, float *histogram, size_t hsize)
static void	compute_contrast_change (float *histogram1, float *histogram2, unsigned *cchange, size_t hsize)
static void	midequalizer8 (const uint8_t *in0, const uint8_t *in1, uint8_t *dst, ptrdiff_t linesize1, ptrdiff_t linesize2, ptrdiff_t dlinesize, int w0, int h0, int w1, int h1, float *histogram1, float *histogram2, unsigned *cchange, size_t hsize)
static void	midequalizer16 (const uint8_t *in0, const uint8_t *in1, uint8_t *dst, ptrdiff_t linesize1, ptrdiff_t linesize2, ptrdiff_t dlinesize, int w0, int h0, int w1, int h1, float *histogram1, float *histogram2, unsigned *cchange, size_t hsize)
static int	config_input0 (AVFilterLink *inlink)
static int	config_input1 (AVFilterLink *inlink)
static int	config_output (AVFilterLink *outlink)
static int	activate (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	midequalizer_options []
static enum AVPixelFormat	pix_fmts []
static const AVFilterPad	midequalizer_inputs []
static const AVFilterPad	midequalizer_outputs []
const FFFilter	ff_vf_midequalizer

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(MidEqualizerContext, x)

Definition at line 50 of file vf_midequalizer.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 51 of file vf_midequalizer.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

midequalizer

)

process_frame()

static int process_frame ( FFFrameSync * fs )

static

Definition at line 84 of file vf_midequalizer.c.

compute_histogram8()

static void compute_histogram8 ( const uint8_t * src, ptrdiff_t linesize, int w, int h, float * histogram, size_t hsize )

static

Definition at line 130 of file vf_midequalizer.c.

Referenced by config_input(), and midequalizer8().

compute_histogram16()

static void compute_histogram16 ( const uint16_t * src, ptrdiff_t linesize, int w, int h, float * histogram, size_t hsize )

static

Definition at line 151 of file vf_midequalizer.c.

Referenced by config_input(), and midequalizer16().

compute_contrast_change()

static void compute_contrast_change ( float * histogram1, float * histogram2, unsigned * cchange, size_t hsize )

static

Definition at line 172 of file vf_midequalizer.c.

Referenced by midequalizer16(), and midequalizer8().

midequalizer8()

static void midequalizer8 ( const uint8_t * in0, const uint8_t * in1, uint8_t * dst, ptrdiff_t linesize1, ptrdiff_t linesize2, ptrdiff_t dlinesize, int w0, int h0, int w1, int h1, float * histogram1, float * histogram2, unsigned * cchange, size_t hsize )

static

Definition at line 186 of file vf_midequalizer.c.

Referenced by config_input0().

midequalizer16()

static void midequalizer16 ( const uint8_t * in0, const uint8_t * in1, uint8_t * dst, ptrdiff_t linesize1, ptrdiff_t linesize2, ptrdiff_t dlinesize, int w0, int h0, int w1, int h1, float * histogram1, float * histogram2, unsigned * cchange, size_t hsize )

static

Definition at line 212 of file vf_midequalizer.c.

Referenced by config_input0().

config_input0()

static int config_input0 ( AVFilterLink * inlink )

static

Definition at line 240 of file vf_midequalizer.c.

config_input1()

static int config_input1 ( AVFilterLink * inlink )

static

Definition at line 274 of file vf_midequalizer.c.

config_output()

static int config_output ( AVFilterLink * outlink )

static

Definition at line 294 of file vf_midequalizer.c.

activate()

static int activate ( AVFilterContext * ctx )

static

Definition at line 331 of file vf_midequalizer.c.

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 337 of file vf_midequalizer.c.

Variable Documentation

midequalizer_options

const AVOption midequalizer_options[]

static

Initial value:

= {
    { "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
    { NULL }
}

Definition at line 53 of file vf_midequalizer.c.

pix_fmts

enum AVPixelFormat pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
    AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
    AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
    AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
    AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
    AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
    AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14,
    AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
    AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
    AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12,
    AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
    AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14,
    AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
    AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
    AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
    AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12,
    AV_PIX_FMT_YUV420P16,  AV_PIX_FMT_YUV422P16,  AV_PIX_FMT_YUV444P16,
    AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
    AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16,
    AV_PIX_FMT_GRAY16,
    AV_PIX_FMT_NONE
}

Definition at line 60 of file vf_midequalizer.c.

midequalizer_inputs

const AVFilterPad midequalizer_inputs[]

static

Initial value:

= {
    {
        .name         = "in0",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = config_input0,
    },
    {
        .name         = "in1",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = config_input1,
    },
}

Definition at line 347 of file vf_midequalizer.c.

midequalizer_outputs

const AVFilterPad midequalizer_outputs[]

static

Initial value:

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

Definition at line 360 of file vf_midequalizer.c.

ff_vf_midequalizer

const FFFilter ff_vf_midequalizer

Initial value:

= {
    .p.name        = "midequalizer",
    .p.description = NULL_IF_CONFIG_SMALL("Apply Midway Equalization."),
    .p.priv_class  = &midequalizer_class,
    .p.flags       = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
    .priv_size     = sizeof(MidEqualizerContext),
    .uninit        = uninit,
    .activate      = activate,
    FILTER_INPUTS(midequalizer_inputs),
    FILTER_OUTPUTS(midequalizer_outputs),
    FILTER_PIXFMTS_ARRAY(pix_fmts),
}

Definition at line 368 of file vf_midequalizer.c.