vf_chromashift.c File Reference

#include "libavutil/avstring.h"
#include "libavutil/eval.h"
#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	ChromaShiftContext

Macros
#define	DEFINE_SMEAR(depth, type, div)
#define	DEFINE_WRAP(depth, type, div)
#define	DEFINE_RGBASMEAR(depth, type, div)
#define	DEFINE_RGBAWRAP(depth, type, div)
#define	OFFSET(x)   offsetof(ChromaShiftContext, x)
#define	VFR   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM

Functions
static int	query_formats (AVFilterContext *ctx)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static int	config_input (AVFilterLink *inlink)
static int	process_command (AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
	AVFILTER_DEFINE_CLASS (chromashift)
	AVFILTER_DEFINE_CLASS (rgbashift)

Variables
static const AVOption	chromashift_options []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
AVFilter	ff_vf_chromashift
static const AVOption	rgbashift_options []
AVFilter	ff_vf_rgbashift

Macro Definition Documentation

DEFINE_SMEAR

#define DEFINE_SMEAR	(		depth,
			type,
			div
	)

Definition at line 92 of file vf_chromashift.c.

DEFINE_WRAP

#define DEFINE_WRAP	(		depth,
			type,
			div
	)

Definition at line 134 of file vf_chromashift.c.

DEFINE_RGBASMEAR

#define DEFINE_RGBASMEAR	(		depth,
			type,
			div
	)

Definition at line 189 of file vf_chromashift.c.

DEFINE_RGBAWRAP

#define DEFINE_RGBAWRAP	(		depth,
			type,
			div
	)

Definition at line 256 of file vf_chromashift.c.

OFFSET

#define OFFSET

(

x

)

offsetof(ChromaShiftContext, x)

Definition at line 415 of file vf_chromashift.c.

VFR

#define VFR   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 416 of file vf_chromashift.c.

Function Documentation

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 55 of file vf_chromashift.c.

filter_frame()

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

static

Definition at line 345 of file vf_chromashift.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 375 of file vf_chromashift.c.

Referenced by process_command().

process_command()

static int process_command ( AVFilterContext *  ctx, const char *  cmd, const char *  args, char *  res, int  res_len, int  flags  )

static

Definition at line 403 of file vf_chromashift.c.

AVFILTER_DEFINE_CLASS() [1/2]

AVFILTER_DEFINE_CLASS

(

chromashift

)

AVFILTER_DEFINE_CLASS() [2/2]

AVFILTER_DEFINE_CLASS

(

rgbashift

)

Variable Documentation

chromashift_options

const AVOption chromashift_options[]

static

Initial value:

= {
    { "cbh", "shift chroma-blue horizontally", OFFSET(cbh),  AV_OPT_TYPE_INT,   {.i64=0}, -255, 255, .flags = VFR },
    { "cbv", "shift chroma-blue vertically",   OFFSET(cbv),  AV_OPT_TYPE_INT,   {.i64=0}, -255, 255, .flags = VFR },
    { "crh", "shift chroma-red horizontally",  OFFSET(crh),  AV_OPT_TYPE_INT,   {.i64=0}, -255, 255, .flags = VFR },
    { "crv", "shift chroma-red vertically",    OFFSET(crv),  AV_OPT_TYPE_INT,   {.i64=0}, -255, 255, .flags = VFR },
    { "edge", "set edge operation",            OFFSET(edge), AV_OPT_TYPE_INT,   {.i64=0},    0,   1, .flags = VFR, "edge" },
    { "smear",                              0,            0, AV_OPT_TYPE_CONST, {.i64=0},    0,   0, .flags = VFR, "edge" },
    { "wrap",                               0,            0, AV_OPT_TYPE_CONST, {.i64=1},    0,   0, .flags = VFR, "edge" },
    { NULL },
}

Definition at line 418 of file vf_chromashift.c.

inputs

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 429 of file vf_chromashift.c.

outputs

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 439 of file vf_chromashift.c.

ff_vf_chromashift

AVFilter ff_vf_chromashift

Initial value:

= {
    .name          = "chromashift",
    .description   = NULL_IF_CONFIG_SMALL("Shift chroma."),
    .priv_size     = sizeof(ChromaShiftContext),
    .priv_class    = &chromashift_class,
    .query_formats = query_formats,
    .outputs       = outputs,
    .inputs        = inputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .process_command = process_command,
}

Definition at line 449 of file vf_chromashift.c.

rgbashift_options

const AVOption rgbashift_options[]

static

Initial value:

= {
    { "rh", "shift red horizontally",   OFFSET(rh),   AV_OPT_TYPE_INT,   {.i64=0}, -255, 255, .flags = VFR },
    { "rv", "shift red vertically",     OFFSET(rv),   AV_OPT_TYPE_INT,   {.i64=0}, -255, 255, .flags = VFR },
    { "gh", "shift green horizontally", OFFSET(gh),   AV_OPT_TYPE_INT,   {.i64=0}, -255, 255, .flags = VFR },
    { "gv", "shift green vertically",   OFFSET(gv),   AV_OPT_TYPE_INT,   {.i64=0}, -255, 255, .flags = VFR },
    { "bh", "shift blue horizontally",  OFFSET(bh),   AV_OPT_TYPE_INT,   {.i64=0}, -255, 255, .flags = VFR },
    { "bv", "shift blue vertically",    OFFSET(bv),   AV_OPT_TYPE_INT,   {.i64=0}, -255, 255, .flags = VFR },
    { "ah", "shift alpha horizontally", OFFSET(ah),   AV_OPT_TYPE_INT,   {.i64=0}, -255, 255, .flags = VFR },
    { "av", "shift alpha vertically",   OFFSET(av),   AV_OPT_TYPE_INT,   {.i64=0}, -255, 255, .flags = VFR },
    { "edge", "set edge operation",     OFFSET(edge), AV_OPT_TYPE_INT,   {.i64=0},    0,   1, .flags = VFR, "edge" },
    { "smear",                          0,         0, AV_OPT_TYPE_CONST, {.i64=0},    0,   0, .flags = VFR, "edge" },
    { "wrap",                           0,         0, AV_OPT_TYPE_CONST, {.i64=1},    0,   0, .flags = VFR, "edge" },
    { NULL },
}

Definition at line 461 of file vf_chromashift.c.

ff_vf_rgbashift

AVFilter ff_vf_rgbashift

Initial value:

= {
    .name          = "rgbashift",
    .description   = NULL_IF_CONFIG_SMALL("Shift RGBA."),
    .priv_size     = sizeof(ChromaShiftContext),
    .priv_class    = &rgbashift_class,
    .query_formats = query_formats,
    .outputs       = outputs,
    .inputs        = inputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .process_command = process_command,
}

Definition at line 478 of file vf_chromashift.c.