af_aformat.c File Reference

format audio filter More...

#include "libavutil/avstring.h"
#include "libavutil/channel_layout.h"
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "audio.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"

Classes
struct	AFormatContext

Macros
#define	OFFSET(x)   offsetof(AFormatContext, x)
#define	A   AV_OPT_FLAG_AUDIO_PARAM
#define	F   AV_OPT_FLAG_FILTERING_PARAM
#define	PARSE_FORMATS(str, type, list, add_to_list, unref_fn, get_fmt, none, desc)

Typedefs
typedef struct AFormatContext	AFormatContext

Functions
	AVFILTER_DEFINE_CLASS (aformat)

Variables
AVFilter	ff_af_aformat

Detailed Description

format audio filter

Macro Definition Documentation

PARSE_FORMATS

#define PARSE_FORMATS	(		str,
			type,
			list,
			add_to_list,
			unref_fn,
			get_fmt,
			none,
			desc
	)

Value:

do {                                                                        \
    char *next, *cur = str, sep;                                            \
    int ret;                                                                \
                                                                            \
    if (str && strchr(str, ',')) {                                          \
        av_log(ctx, AV_LOG_WARNING, "This syntax is deprecated, use '|' to "\
               "separate %s.\n", desc);                                     \
        sep = ',';                                                          \
    } else                                                                  \
        sep = '|';                                                          \
                                                                            \
    while (cur) {                                                           \
        type fmt;                                                           \
        next = strchr(cur, sep);                                            \
        if (next)                                                           \
            *next++ = 0;                                                    \
                                                                            \
        if ((fmt = get_fmt(cur)) == none) {                                 \
            av_log(ctx, AV_LOG_ERROR, "Error parsing " desc ": %s.\n", cur);\
            return AVERROR(EINVAL);                                         \
        }                                                                   \
        if ((ret = add_to_list(&list, fmt)) < 0) {                          \
            unref_fn(&list);                                                \
            return ret;                                                     \
        }                                                                   \
                                                                            \
        cur = next;                                                         \
    }                                                                       \
} while (0)

Variable Documentation

ff_af_aformat

AVFilter ff_af_aformat

Initial value:

= {
    .name          = "aformat",
    .description   = NULL_IF_CONFIG_SMALL("Convert the input audio to one of the specified formats."),
    .init          = init,
    .query_formats = query_formats,
    .priv_size     = sizeof(AFormatContext),
    .priv_class    = &aformat_class,
    .inputs        = avfilter_af_aformat_inputs,
    .outputs       = avfilter_af_aformat_outputs,
}