vf_format.c File Reference

#include "config_components.h"
#include <string.h>
#include "libavutil/internal.h"
#include "libavutil/mem.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	FormatContext

Macros
#define	DEFINE_PARSE(name, Type, get, descr, extra_test)
#define	PARSE_LIST(strfield, fmtfield, tvar, parse)
#define	OFFSET(x)   offsetof(FormatContext, x)

Functions
static av_cold void	uninit (AVFilterContext *ctx)
static av_cold int	invert_formats (AVFilterFormats **fmts, AVFilterFormats *allfmts)
static av_cold int	init (AVFilterContext *ctx)
static int	query_formats (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
	AVFILTER_DEFINE_CLASS_EXT (format, "(no)format", options)

Variables
static const AVOption	options []
static const AVFilterPad	inputs []

Detailed Description

format and noformat video filters

Definition in file vf_format.c.

Macro Definition Documentation

DEFINE_PARSE

#define DEFINE_PARSE	(		name,
			Type,
			get,
			descr,
			extra_test
	)

Value:

static int parse_##name(enum Type *ret, const char *arg, void *log_ctx) \
{ \
    char *tail; \
    int val = get(arg); \
    if (val < 0) { \
        val = strtol(arg, &tail, 0); \
        if (*tail || extra_test) { \
            av_log(log_ctx, AV_LOG_ERROR, "Invalid " descr " '%s'\n", arg); \
            return AVERROR(EINVAL); \
        } \
    } \
    *ret = val; \
    return 0; \
}

Definition at line 91 of file vf_format.c.

PARSE_LIST

#define PARSE_LIST	(		strfield,
			fmtfield,
			tvar,
			parse
	)

Value:

    for (char *sep, *cur = s->strfield; cur; cur = sep) { \
        sep = strchr(cur, '|'); \
        if (sep && *sep) \
            *sep++ = 0; \
        if ((ret = parse(&tvar, cur, ctx)) < 0 || \
            (ret = ff_add_format(&s->fmtfield, tvar)) < 0) \
            return ret; \
    }

OFFSET

#define OFFSET

(

x

)

offsetof(FormatContext, x)

Definition at line 171 of file vf_format.c.

Function Documentation

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 53 of file vf_format.c.

invert_formats()

static av_cold int invert_formats ( AVFilterFormats **  fmts, AVFilterFormats *  allfmts  )

static

Definition at line 62 of file vf_format.c.

Referenced by init().

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 112 of file vf_format.c.

query_formats()

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

static

Definition at line 154 of file vf_format.c.

AVFILTER_DEFINE_CLASS_EXT()

AVFILTER_DEFINE_CLASS_EXT	(	format	,
		"(no)format"	,
		options
	)

Variable Documentation

options

const AVOption options[]

static

Initial value:

= {
    { "pix_fmts", "A '|'-separated list of pixel formats", OFFSET(pix_fmts), AV_OPT_TYPE_STRING, .flags = AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM },
    { "color_spaces", "A '|'-separated list of color spaces", OFFSET(csps), AV_OPT_TYPE_STRING, .flags = AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM },
    { "color_ranges", "A '|'-separated list of color ranges", OFFSET(ranges), AV_OPT_TYPE_STRING, .flags = AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM },
    { "alpha_modes", "A '|'-separated list of alpha modes", OFFSET(alphamodes), AV_OPT_TYPE_STRING, .flags = AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM },
    { NULL }
}

Definition at line 172 of file vf_format.c.

inputs

const AVFilterPad inputs[]

static

Initial value:

= {
    {
        .name             = "default",
        .type             = AVMEDIA_TYPE_VIDEO,
        .get_buffer.video = ff_null_get_video_buffer,
    },
}

Definition at line 182 of file vf_format.c.