af_resample.c File Reference

sample format and channel layout conversion audio filter More...

#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/common.h"
#include "libavutil/dict.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavresample/avresample.h"
#include "audio.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	ResampleContext

Functions
static av_cold int	init (AVFilterContext *ctx, AVDictionary **opts)
static av_cold void	uninit (AVFilterContext *ctx)
static int	query_formats (AVFilterContext *ctx)
static int	config_output (AVFilterLink *outlink)
static int	request_frame (AVFilterLink *outlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static const AVClass *	resample_child_class_next (const AVClass *prev)
static void *	resample_child_next (void *obj, void *prev)

Variables
static const AVClass	resample_class
static const AVFilterPad	avfilter_af_resample_inputs []
static const AVFilterPad	avfilter_af_resample_outputs []
AVFilter	ff_af_resample

Detailed Description

sample format and channel layout conversion audio filter

Definition in file af_resample.c.

Function Documentation

static av_cold int init ( AVFilterContext *  ctx, AVDictionary **  opts  )

static

Definition at line 51 of file af_resample.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 78 of file af_resample.c.

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 89 of file af_resample.c.

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 113 of file af_resample.c.

static int request_frame ( AVFilterLink *  outlink )

static

Definition at line 175 of file af_resample.c.

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

static

Definition at line 211 of file af_resample.c.

static const AVClass* resample_child_class_next ( const AVClass *  prev )

static

Definition at line 294 of file af_resample.c.

static void* resample_child_next ( void *  obj, void *  prev  )

static

Definition at line 299 of file af_resample.c.

Variable Documentation

const AVClass resample_class

static

Initial value:

= {
    .class_name       = "resample",
    .item_name        = av_default_item_name,
    .version          = LIBAVUTIL_VERSION_INT,
    .child_class_next = resample_child_class_next,
    .child_next       = resample_child_next,
}

Definition at line 305 of file af_resample.c.

const AVFilterPad avfilter_af_resample_inputs[]

static

Initial value:

= {
    {
        .name           = "default",
        .type           = AVMEDIA_TYPE_AUDIO,
        .filter_frame   = filter_frame,
    },
    { NULL }
}

Definition at line 313 of file af_resample.c.

const AVFilterPad avfilter_af_resample_outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_AUDIO,
        .config_props  = config_output,
        .request_frame = request_frame
    },
    { NULL }
}

Definition at line 322 of file af_resample.c.

AVFilter ff_af_resample

Initial value:

= {
    .name          = "resample",
    .description   = NULL_IF_CONFIG_SMALL("Audio resampling and conversion."),
    .priv_size     = sizeof(ResampleContext),
    .priv_class    = &resample_class,

    .init_dict      = init,
    .uninit         = uninit,
    .query_formats  = query_formats,

    .inputs    = avfilter_af_resample_inputs,
    .outputs   = avfilter_af_resample_outputs,
}

Definition at line 332 of file af_resample.c.