All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
Data Structures | Macros | Functions | Variables
af_channelsplit.c File Reference

Channel split filter. More...

#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 int init (AVFilterContext *ctx, const char *arg)
static int query_formats (AVFilterContext *ctx)
static int filter_frame (AVFilterLink *inlink, AVFilterBufferRef *buf)


static const AVOption channelsplit_options []
static const AVFilterPad avfilter_af_channelsplit_inputs []
AVFilter avfilter_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 42 of file af_channelsplit.c.


Definition at line 43 of file af_channelsplit.c.

Definition at line 44 of file af_channelsplit.c.

Function Documentation

AVFILTER_DEFINE_CLASS ( channelsplit  )
static int init ( AVFilterContext ctx,
const char *  arg 

Definition at line 52 of file af_channelsplit.c.

static int query_formats ( AVFilterContext ctx)

Definition at line 85 of file af_channelsplit.c.

static int filter_frame ( AVFilterLink inlink,
AVFilterBufferRef buf 

Definition at line 108 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 45 of file af_channelsplit.c.

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

Definition at line 133 of file af_channelsplit.c.

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

Definition at line 142 of file af_channelsplit.c.