OverlayContext Struct Reference

Data Fields
const AVClass *	class
int	x
int	y
	position of overlaid picture More...
int	allow_packed_rgb
uint8_t	main_is_packed_rgb
uint8_t	main_rgba_map [4]
uint8_t	main_has_alpha
uint8_t	overlay_is_packed_rgb
uint8_t	overlay_rgba_map [4]
uint8_t	overlay_has_alpha
int	format
	OverlayFormat. More...
int	eval_mode
	EvalMode. More...
FFDualInputContext	dinput
int	main_pix_step [4]
	steps per pixel for each plane of the main output More...
int	overlay_pix_step [4]
	steps per pixel for each plane of the overlay More...
int	hsub
int	vsub
	chroma subsampling values More...
const AVPixFmtDescriptor *	main_desc
	format descriptor for main input More...
double	var_values [VAR_VARS_NB]
char *	x_expr
char *	y_expr
int	eof_action
	action to take on EOF from source More...
AVExpr *	x_pexpr
AVExpr *	y_pexpr
void(*	blend_image )(AVFilterContext *ctx, AVFrame *dst, const AVFrame *src, int x, int y)

Detailed Description

Definition at line 110 of file vf_overlay.c.

Field Documentation

const AVClass* OverlayContext::class

Definition at line 111 of file vf_overlay.c.

int OverlayContext::x

Definition at line 112 of file vf_overlay.c.

Referenced by config_input_overlay(), do_blend(), eval_expr(), and process_command().

int OverlayContext::y

position of overlaid picture

Definition at line 112 of file vf_overlay.c.

Referenced by config_input_overlay(), do_blend(), eval_expr(), and process_command().

int OverlayContext::allow_packed_rgb

Definition at line 114 of file vf_overlay.c.

Referenced by init().

uint8_t OverlayContext::main_is_packed_rgb

Definition at line 115 of file vf_overlay.c.

Referenced by config_input_main().

uint8_t OverlayContext::main_rgba_map[4]

Definition at line 116 of file vf_overlay.c.

Referenced by blend_image_packed_rgb(), and config_input_main().

uint8_t OverlayContext::main_has_alpha

Definition at line 117 of file vf_overlay.c.

Referenced by blend_image_gbrp(), blend_image_packed_rgb(), blend_image_yuv420(), blend_image_yuv422(), blend_image_yuv444(), and config_input_main().

uint8_t OverlayContext::overlay_is_packed_rgb

Definition at line 118 of file vf_overlay.c.

Referenced by config_input_overlay().

uint8_t OverlayContext::overlay_rgba_map[4]

Definition at line 119 of file vf_overlay.c.

Referenced by blend_image_packed_rgb(), and config_input_overlay().

uint8_t OverlayContext::overlay_has_alpha

Definition at line 120 of file vf_overlay.c.

Referenced by config_input_overlay().

int OverlayContext::format

OverlayFormat.

Definition at line 121 of file vf_overlay.c.

Referenced by config_input_main(), init(), and query_formats().

int OverlayContext::eval_mode

EvalMode.

Definition at line 122 of file vf_overlay.c.

Referenced by config_input_overlay(), do_blend(), and process_command().

FFDualInputContext OverlayContext::dinput

Definition at line 124 of file vf_overlay.c.

Referenced by config_output(), filter_frame(), init(), request_frame(), and uninit().

int OverlayContext::main_pix_step[4]

steps per pixel for each plane of the main output

Definition at line 126 of file vf_overlay.c.

Referenced by blend_image_packed_rgb(), and config_input_main().

int OverlayContext::overlay_pix_step[4]

steps per pixel for each plane of the overlay

Definition at line 127 of file vf_overlay.c.

Referenced by blend_image_packed_rgb(), and config_input_overlay().

int OverlayContext::hsub

Definition at line 128 of file vf_overlay.c.

Referenced by config_input_main(), and eval_expr().

int OverlayContext::vsub

chroma subsampling values

Definition at line 128 of file vf_overlay.c.

Referenced by config_input_main(), and eval_expr().

const AVPixFmtDescriptor* OverlayContext::main_desc

format descriptor for main input

Definition at line 129 of file vf_overlay.c.

Referenced by blend_image_rgb(), blend_image_yuv(), and config_input_main().

double OverlayContext::var_values[VAR_VARS_NB]

Definition at line 131 of file vf_overlay.c.

Referenced by config_input_overlay(), do_blend(), eval_expr(), and process_command().

char* OverlayContext::x_expr

Definition at line 132 of file vf_overlay.c.

Referenced by config_input_overlay().

char * OverlayContext::y_expr

Definition at line 132 of file vf_overlay.c.

Referenced by config_input_overlay().

int OverlayContext::eof_action

action to take on EOF from source

Definition at line 134 of file vf_overlay.c.

Referenced by config_input_overlay(), and init().

AVExpr* OverlayContext::x_pexpr

Definition at line 136 of file vf_overlay.c.

Referenced by config_input_overlay(), eval_expr(), process_command(), and uninit().

AVExpr * OverlayContext::y_pexpr

Definition at line 136 of file vf_overlay.c.

Referenced by config_input_overlay(), eval_expr(), process_command(), and uninit().

void(* OverlayContext::blend_image)(AVFilterContext *ctx, AVFrame *dst, const AVFrame *src, int x, int y)

Definition at line 138 of file vf_overlay.c.

Referenced by config_input_main(), and do_blend().

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The documentation for this struct was generated from the following file:

• libavfilter/vf_overlay.c