vf_stack.c File Reference

#include "libavutil/avstring.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "framesync.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	StackContext

Macros
#define	OFFSET(x)   offsetof(StackContext, x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Functions
static int	query_formats (AVFilterContext *ctx)
static av_cold int	init (AVFilterContext *ctx)
static int	process_frame (FFFrameSync *fs)
static int	config_output (AVFilterLink *outlink)
static av_cold void	uninit (AVFilterContext *ctx)
static int	activate (AVFilterContext *ctx)

Variables
static const AVOption	stack_options []
static const AVFilterPad	outputs []

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(StackContext, x)

Definition at line 223 of file vf_stack.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Definition at line 224 of file vf_stack.c.

Function Documentation

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 44 of file vf_stack.c.

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 61 of file vf_stack.c.

process_frame()

static int process_frame ( FFFrameSync *  fs )

static

Definition at line 90 of file vf_stack.c.

Referenced by config_output().

config_output()

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 145 of file vf_stack.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 205 of file vf_stack.c.

activate()

static int activate ( AVFilterContext *  ctx )

static

Definition at line 217 of file vf_stack.c.

Variable Documentation

stack_options

const AVOption stack_options[]

static

Initial value:

= {
    { "inputs", "set number of inputs", OFFSET(nb_inputs), AV_OPT_TYPE_INT, {.i64=2}, 2, INT_MAX, .flags = FLAGS },
    { "shortest", "force termination when the shortest input terminates", OFFSET(shortest), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, .flags = FLAGS },
    { NULL },
}

Definition at line 225 of file vf_stack.c.

outputs

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 231 of file vf_stack.c.