libavfilter/vf_overlay.c File Reference

overlay one video on top of another More...

#include "avfilter.h"
#include "libavutil/eval.h"
#include "libavutil/avstring.h"
#include "libavutil/pixdesc.h"
#include "libavutil/imgutils.h"
#include "internal.h"

Detailed Description

overlay one video on top of another

Definition in file vf_overlay.c.

Define Documentation

#define MAIN 0

Definition at line 57 of file vf_overlay.c.

Referenced by config_input_overlay(), config_output(), Faac_encode_init(), query_formats(), and start_frame().

#define OVERLAY 1

Definition at line 58 of file vf_overlay.c.

Referenced by avfilter_register_all(), config_input_overlay(), config_output(), query_formats(), start_frame(), and start_frame_overlay().

Enumeration Type Documentation

enum var_name

Enumerator:

VAR_E
VAR_PHI
VAR_PI
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_X
VAR_Y
VAR_N
VAR_POS
VAR_T
VAR_VARS_NB
VAR_E
VAR_PHI
VAR_PI
VAR_W
VAR_H
VAR_VAL
VAR_MAXVAL
VAR_MINVAL
VAR_NEGVAL
VAR_CLIPVAL
VAR_VARS_NB
VAR_E
VAR_PHI
VAR_PI
VAR_MAIN_W
VAR_MW
VAR_MAIN_H
VAR_MH
VAR_OVERLAY_W
VAR_OW
VAR_OVERLAY_H
VAR_OH
VAR_VARS_NB
VAR_PI
VAR_PHI
VAR_E
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_X
VAR_Y
VAR_A
VAR_HSUB
VAR_VSUB
VARS_NB
VAR_PI
VAR_PHI
VAR_E
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_A
VAR_HSUB
VAR_VSUB
VARS_NB
VAR_E
VAR_PHI
VAR_PI
VAR_TB
VAR_PTS
VAR_START_PTS
VAR_PREV_PTS
VAR_PREV_SELECTED_PTS
VAR_T
VAR_START_T
VAR_PREV_T
VAR_PREV_SELECTED_T
VAR_PICT_TYPE
VAR_PICT_TYPE_I
VAR_PICT_TYPE_P
VAR_PICT_TYPE_B
VAR_PICT_TYPE_S
VAR_PICT_TYPE_SI
VAR_PICT_TYPE_SP
VAR_PICT_TYPE_BI
VAR_INTERLACE_TYPE
VAR_INTERLACE_TYPE_P
VAR_INTERLACE_TYPE_T
VAR_INTERLACE_TYPE_B
VAR_N
VAR_SELECTED_N
VAR_PREV_SELECTED_N
VAR_KEY
VAR_POS
VAR_VARS_NB
VAR_E
VAR_INTERLACED
VAR_N
VAR_PHI
VAR_PI
VAR_POS
VAR_PREV_INPTS
VAR_PREV_OUTPTS
VAR_PTS
VAR_STARTPTS
VAR_TB
VAR_VARS_NB
VAR_E
VAR_PHI
VAR_PI
VAR_AVTB
VAR_INTB
VAR_VARS_NB
VAR_E
VAR_PHI
VAR_PI
VAR_AVTB
VAR_VARS_NB

Definition at line 46 of file vf_overlay.c.

Function Documentation

static void blend_slice	(	AVFilterContext *	ctx,
		AVFilterBufferRef *	dst,
		AVFilterBufferRef *	src,
		int	x,
		int	y,
		int	w,
		int	h,
		int	slice_y,
		int	slice_w,
		int	slice_h
	)			`[static]`

Definition at line 242 of file vf_overlay.c.

Referenced by draw_slice().

static int config_input_main ( AVFilterLink * inlink ) [static]

Definition at line 106 of file vf_overlay.c.

static int config_input_overlay ( AVFilterLink * inlink ) [static]

Definition at line 118 of file vf_overlay.c.

static int config_output ( AVFilterLink * outlink ) [static]

Definition at line 178 of file vf_overlay.c.

static void draw_slice	(	AVFilterLink *	inlink,
		int	y,
		int	h,
		int	slice_dir
	)			`[static]`

Definition at line 320 of file vf_overlay.c.

static void end_frame ( AVFilterLink * inlink ) [static]

Definition at line 337 of file vf_overlay.c.

static AVFilterBufferRef* get_video_buffer	(	AVFilterLink *	link,
		int	perms,
		int	w,
		int	h
	)			`[static]`

Definition at line 203 of file vf_overlay.c.

static av_cold int init	(	AVFilterContext *	ctx,
		const char *	args,
		void *	opaque
	)			`[static]`

Definition at line 71 of file vf_overlay.c.

static void null_draw_slice	(	AVFilterLink *	inlink,
		int	y,
		int	h,
		int	slice_dir
	)			`[static]`

Definition at line 343 of file vf_overlay.c.

static void null_end_frame ( AVFilterLink * inlink ) [static]

Definition at line 345 of file vf_overlay.c.

static int query_formats ( AVFilterContext * ctx ) [static]

Definition at line 92 of file vf_overlay.c.

static void start_frame	(	AVFilterLink *	inlink,
		AVFilterBufferRef *	inpicref
	)			`[static]`

Definition at line 208 of file vf_overlay.c.

static void start_frame_overlay	(	AVFilterLink *	inlink,
		AVFilterBufferRef *	inpicref
	)			`[static]`

Definition at line 232 of file vf_overlay.c.

static av_cold void uninit ( AVFilterContext * ctx ) [static]

Definition at line 84 of file vf_overlay.c.

Variable Documentation

AVFilter avfilter_vf_overlay

Definition at line 347 of file vf_overlay.c.

const char* var_names[] [static]

Initial value:

 {
    "E",
    "PHI",
    "PI",
    "main_w",    "W", 
    "main_h",    "H", 
    "overlay_w", "w", 
    "overlay_h", "h", 
    NULL
}

Definition at line 35 of file vf_overlay.c.


Data Structures
struct	OverlayContext
Defines
#define	MAIN 0
#define	OVERLAY 1
Enumerations
enum	var_name { VAR_E, VAR_PHI, VAR_PI, VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH, VAR_X, VAR_Y, VAR_N, VAR_POS, VAR_T, VAR_VARS_NB, VAR_E, VAR_PHI, VAR_PI, VAR_W, VAR_H, VAR_VAL, VAR_MAXVAL, VAR_MINVAL, VAR_NEGVAL, VAR_CLIPVAL, VAR_VARS_NB, VAR_E, VAR_PHI, VAR_PI, VAR_MAIN_W, VAR_MW, VAR_MAIN_H, VAR_MH, VAR_OVERLAY_W, VAR_OW, VAR_OVERLAY_H, VAR_OH, VAR_VARS_NB, VAR_PI, VAR_PHI, VAR_E, VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH, VAR_X, VAR_Y, VAR_A, VAR_HSUB, VAR_VSUB, VARS_NB, VAR_PI, VAR_PHI, VAR_E, VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH, VAR_A, VAR_HSUB, VAR_VSUB, VARS_NB, VAR_E, VAR_PHI, VAR_PI, VAR_TB, VAR_PTS, VAR_START_PTS, VAR_PREV_PTS, VAR_PREV_SELECTED_PTS, VAR_T, VAR_START_T, VAR_PREV_T, VAR_PREV_SELECTED_T, VAR_PICT_TYPE, VAR_PICT_TYPE_I, VAR_PICT_TYPE_P, VAR_PICT_TYPE_B, VAR_PICT_TYPE_S, VAR_PICT_TYPE_SI, VAR_PICT_TYPE_SP, VAR_PICT_TYPE_BI, VAR_INTERLACE_TYPE, VAR_INTERLACE_TYPE_P, VAR_INTERLACE_TYPE_T, VAR_INTERLACE_TYPE_B, VAR_N, VAR_SELECTED_N, VAR_PREV_SELECTED_N, VAR_KEY, VAR_POS, VAR_VARS_NB, VAR_E, VAR_INTERLACED, VAR_N, VAR_PHI, VAR_PI, VAR_POS, VAR_PREV_INPTS, VAR_PREV_OUTPTS, VAR_PTS, VAR_STARTPTS, VAR_TB, VAR_VARS_NB, VAR_E, VAR_PHI, VAR_PI, VAR_AVTB, VAR_INTB, VAR_VARS_NB, VAR_E, VAR_PHI, VAR_PI, VAR_AVTB, VAR_VARS_NB }
Functions
static av_cold int	init (AVFilterContext ctx, const char args, void *opaque)
static av_cold void	uninit (AVFilterContext *ctx)
static int	query_formats (AVFilterContext *ctx)
static int	config_input_main (AVFilterLink *inlink)
static int	config_input_overlay (AVFilterLink *inlink)
static int	config_output (AVFilterLink *outlink)
static AVFilterBufferRef *	get_video_buffer (AVFilterLink *link, int perms, int w, int h)
static void	start_frame (AVFilterLink inlink, AVFilterBufferRef inpicref)
static void	start_frame_overlay (AVFilterLink inlink, AVFilterBufferRef inpicref)
static void	blend_slice (AVFilterContext ctx, AVFilterBufferRef dst, AVFilterBufferRef *src, int x, int y, int w, int h, int slice_y, int slice_w, int slice_h)
static void	draw_slice (AVFilterLink *inlink, int y, int h, int slice_dir)
static void	end_frame (AVFilterLink *inlink)
static void	null_draw_slice (AVFilterLink *inlink, int y, int h, int slice_dir)
static void	null_end_frame (AVFilterLink *inlink)
Variables
static const char *	var_names []
AVFilter	avfilter_vf_overlay

libavfilter/vf_overlay.c File Reference

Data Structures

Defines

Enumerations

Functions

Variables

Detailed Description

Define Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation