FFmpeg
Data Structures | Macros | Functions | Variables
f_streamselect.c File Reference
#include "libavutil/avstring.h"
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "audio.h"
#include "filters.h"
#include "formats.h"
#include "framesync.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  StreamSelectContext
 

Macros

#define OFFSET(x)   offsetof(StreamSelectContext, x)
 
#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
 
#define TFLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
 

Functions

 AVFILTER_DEFINE_CLASS_EXT (streamselect, "(a)streamselect", streamselect_options)
 
static int process_frame (FFFrameSync *fs)
 
static int activate (AVFilterContext *ctx)
 
static int config_output (AVFilterLink *outlink)
 
static int parse_definition (AVFilterContext *ctx, int nb_pads, int is_input, int is_audio)
 
static int parse_mapping (AVFilterContext *ctx, const char *map)
 
static int process_command (AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
 
static av_cold int init (AVFilterContext *ctx)
 
static av_cold void uninit (AVFilterContext *ctx)
 
static int query_formats (AVFilterContext *ctx)
 

Variables

static const AVOption streamselect_options []
 
const AVFilter ff_vf_streamselect
 
const AVFilter ff_af_astreamselect
 

Macro Definition Documentation

◆ OFFSET

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

Definition at line 42 of file f_streamselect.c.

◆ FLAGS

Definition at line 43 of file f_streamselect.c.

◆ TFLAGS

Definition at line 44 of file f_streamselect.c.

Function Documentation

◆ AVFILTER_DEFINE_CLASS_EXT()

AVFILTER_DEFINE_CLASS_EXT ( streamselect  ,
"(a)streamselect"  ,
streamselect_options   
)

◆ process_frame()

static int process_frame ( FFFrameSync fs)
static

Definition at line 53 of file f_streamselect.c.

Referenced by config_output().

◆ activate()

static int activate ( AVFilterContext ctx)
static

Definition at line 92 of file f_streamselect.c.

◆ config_output()

static int config_output ( AVFilterLink outlink)
static

Definition at line 98 of file f_streamselect.c.

Referenced by parse_definition().

◆ parse_definition()

static int parse_definition ( AVFilterContext ctx,
int  nb_pads,
int  is_input,
int  is_audio 
)
static

Definition at line 157 of file f_streamselect.c.

Referenced by init().

◆ parse_mapping()

static int parse_mapping ( AVFilterContext ctx,
const char *  map 
)
static

Definition at line 186 of file f_streamselect.c.

Referenced by init(), and process_command().

◆ process_command()

static int process_command ( AVFilterContext ctx,
const char *  cmd,
const char *  args,
char *  res,
int  res_len,
int  flags 
)
static

Definition at line 245 of file f_streamselect.c.

◆ init()

static av_cold int init ( AVFilterContext ctx)
static

Definition at line 258 of file f_streamselect.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 291 of file f_streamselect.c.

◆ query_formats()

static int query_formats ( AVFilterContext ctx)
static

Definition at line 301 of file f_streamselect.c.

Variable Documentation

◆ streamselect_options

const AVOption streamselect_options[]
static
Initial value:
= {
{ "inputs", "number of input streams", OFFSET(nb_inputs), AV_OPT_TYPE_INT, {.i64=2}, 2, INT_MAX, .flags=FLAGS },
{ "map", "input indexes to remap to outputs", OFFSET(map_str), AV_OPT_TYPE_STRING, {.str=NULL}, .flags=TFLAGS },
{ NULL }
}

Definition at line 45 of file f_streamselect.c.

◆ ff_vf_streamselect

const AVFilter ff_vf_streamselect
Initial value:
= {
.name = "streamselect",
.description = NULL_IF_CONFIG_SMALL("Select video streams"),
.init = init,
.process_command = process_command,
.uninit = uninit,
.activate = activate,
.priv_size = sizeof(StreamSelectContext),
.priv_class = &streamselect_class,
}

Definition at line 321 of file f_streamselect.c.

◆ ff_af_astreamselect

const AVFilter ff_af_astreamselect
Initial value:
= {
.name = "astreamselect",
.description = NULL_IF_CONFIG_SMALL("Select audio streams"),
.priv_class = &streamselect_class,
.init = init,
.process_command = process_command,
.uninit = uninit,
.activate = activate,
.priv_size = sizeof(StreamSelectContext),
}

Definition at line 334 of file f_streamselect.c.

FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:167
AVFILTER_FLAG_DYNAMIC_INPUTS
#define AVFILTER_FLAG_DYNAMIC_INPUTS
The number of the filter inputs is not determined just by AVFilter.inputs.
Definition: avfilter.h:116
TFLAGS
#define TFLAGS
Definition: f_streamselect.c:44
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: f_streamselect.c:301
activate
static int activate(AVFilterContext *ctx)
Definition: f_streamselect.c:92
NULL
#define NULL
Definition: coverity.c:32
StreamSelectContext
Definition: f_streamselect.c:30
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: f_streamselect.c:245
AVFILTER_FLAG_DYNAMIC_OUTPUTS
#define AVFILTER_FLAG_DYNAMIC_OUTPUTS
The number of the filter outputs is not determined just by AVFilter.outputs.
Definition: avfilter.h:122
init
static av_cold int init(AVFilterContext *ctx)
Definition: f_streamselect.c:258
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:115
FLAGS
#define FLAGS
Definition: f_streamselect.c:43
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
OFFSET
#define OFFSET(x)
Definition: f_streamselect.c:42
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: f_streamselect.c:291
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:229