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af_channelsplit.c File Reference

Channel split filter. More...

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

Go to the source code of this file.

Data Structures

struct  ChannelSplitContext


#define OFFSET(x)   offsetof(ChannelSplitContext, x)


static av_cold int init (AVFilterContext *ctx)
static int query_formats (AVFilterContext *ctx)
static int filter_frame (AVFilterLink *inlink, AVFrame *buf)


static const AVOption channelsplit_options []
static const AVFilterPad avfilter_af_channelsplit_inputs []
AVFilter ff_af_channelsplit

Detailed Description

Channel split filter.

Split an audio stream into per-channel streams.

Definition in file af_channelsplit.c.

Macro Definition Documentation

#define OFFSET (   x)    offsetof(ChannelSplitContext, x)

Definition at line 43 of file af_channelsplit.c.


Definition at line 44 of file af_channelsplit.c.

Definition at line 45 of file af_channelsplit.c.

Function Documentation

AVFILTER_DEFINE_CLASS ( channelsplit  )
static av_cold int init ( AVFilterContext ctx)

Definition at line 53 of file af_channelsplit.c.

static int query_formats ( AVFilterContext ctx)

Definition at line 81 of file af_channelsplit.c.

static int filter_frame ( AVFilterLink inlink,
AVFrame buf 

Definition at line 104 of file af_channelsplit.c.

Variable Documentation

const AVOption channelsplit_options[]
Initial value:
= {
{ "channel_layout", "Input channel layout.", OFFSET(channel_layout_str), AV_OPT_TYPE_STRING, { .str = "stereo" }, .flags = A|F },
{ NULL }

Definition at line 46 of file af_channelsplit.c.

const AVFilterPad avfilter_af_channelsplit_inputs[]
Initial value:
= {
.name = "default",
.filter_frame = filter_frame,
{ NULL }

Definition at line 130 of file af_channelsplit.c.

AVFilter ff_af_channelsplit
Initial value:
= {
.name = "channelsplit",
.description = NULL_IF_CONFIG_SMALL("Split audio into per-channel streams."),
.priv_size = sizeof(ChannelSplitContext),
.priv_class = &channelsplit_class,
.init = init,
.outputs = NULL,

Definition at line 139 of file af_channelsplit.c.