Data Fields
const AVClass *	class

int	exp_mode
	expansion mode to use for the text More...

int	reinit
	tells if the filter is being reinited More...

uint8_t *	fontfile
	font to be used More...

uint8_t *	text
	text to be drawn More...

AVBPrint	expanded_text
	used to contain the expanded text More...

uint8_t *	fontcolor_expr
	fontcolor expression to evaluate More...

AVBPrint	expanded_fontcolor
	used to contain the expanded fontcolor spec More...

int	ft_load_flags
	flags used for loading fonts, see FT_LOAD_* More...

FT_Vector *	positions
	positions for each element in the text More...

size_t	nb_positions
	number of elements of positions array More...

char *	textfile
	file with text to be drawn More...

int	x
	x position to start drawing text More...

int	y
	y position to start drawing text More...

int	max_glyph_w
	max glyph width More...

int	max_glyph_h
	max glyph height More...

int	shadowx

int	shadowy

int	borderw
	border width More...

char *	fontsize_expr
	expression for fontsize More...

AVExpr *	fontsize_pexpr
	parsed expressions for fontsize More...

unsigned int	fontsize
	font size to use More...

unsigned int	default_fontsize
	default font size to use More...

int	line_spacing
	lines spacing in pixels More...

short int	draw_box
	draw box around text - true or false More...

int	boxborderw
	box border width More...

int	use_kerning
	font kerning is used - true/false More...

int	tabsize
	tab size More...

int	fix_bounds
	do we let it go out of frame bounds - t/f More...

FFDrawContext	dc

FFDrawColor	fontcolor
	foreground color More...

FFDrawColor	shadowcolor
	shadow color More...

FFDrawColor	bordercolor
	border color More...

FFDrawColor	boxcolor
	background color More...

FT_Library	library
	freetype font library handle More...

FT_Face	face
	freetype font face handle More...

FT_Stroker	stroker
	freetype stroker handle More...

struct AVTreeNode *	glyphs
	rendered glyphs, stored using the UTF-32 char code More...

char *	x_expr
	expression for x position More...

char *	y_expr
	expression for y position More...

AVExpr *	x_pexpr

AVExpr *	y_pexpr
	parsed expressions for x and y More...

int64_t	basetime
	base pts time in the real world for display More...

double	var_values [VAR_VARS_NB]

char *	a_expr

AVExpr *	a_pexpr

int	alpha

AVLFG	prng
	random More...

char *	tc_opt_string
	specified timecode option string More...

AVRational	tc_rate
	frame rate for timecode More...

AVTimecode	tc
	timecode context More...

int	tc24hmax
	1 if timecode is wrapped to 24 hours, 0 otherwise More...

int	reload
	reload text file for each frame More...

int	start_number
	starting frame number for n/frame_num var More...

AVDictionary *	metadata

Detailed Description

Definition at line 137 of file vf_drawtext.c.

Field Documentation

◆ class

const AVClass* DrawTextContext::class

Definition at line 138 of file vf_drawtext.c.

◆ exp_mode

int DrawTextContext::exp_mode

expansion mode to use for the text

Definition at line 139 of file vf_drawtext.c.

Referenced by draw_text(), and init().

◆ reinit

int DrawTextContext::reinit

tells if the filter is being reinited

Definition at line 140 of file vf_drawtext.c.

Referenced by command().

◆ fontfile

uint8_t* DrawTextContext::fontfile

font to be used

Definition at line 144 of file vf_drawtext.c.

Referenced by init(), load_font(), and load_font_file().

◆ text

uint8_t* DrawTextContext::text

text to be drawn

Definition at line 145 of file vf_drawtext.c.

Referenced by draw_glyphs(), draw_text(), expand_function(), init(), is_newline(), and load_textfile().

◆ expanded_text

AVBPrint DrawTextContext::expanded_text

used to contain the expanded text

Definition at line 146 of file vf_drawtext.c.

Referenced by draw_glyphs(), draw_text(), init(), and uninit().

◆ fontcolor_expr

uint8_t* DrawTextContext::fontcolor_expr

fontcolor expression to evaluate

Definition at line 147 of file vf_drawtext.c.

Referenced by draw_text().

◆ expanded_fontcolor

AVBPrint DrawTextContext::expanded_fontcolor

used to contain the expanded fontcolor spec

Definition at line 148 of file vf_drawtext.c.

Referenced by draw_text(), init(), and uninit().

◆ ft_load_flags

int DrawTextContext::ft_load_flags

flags used for loading fonts, see FT_LOAD_*

Definition at line 149 of file vf_drawtext.c.

Referenced by load_glyph().

◆ positions

FT_Vector* DrawTextContext::positions

positions for each element in the text

Definition at line 150 of file vf_drawtext.c.

Referenced by draw_glyphs(), draw_text(), func_eval_expr_int_format(), and uninit().

◆ nb_positions

size_t DrawTextContext::nb_positions

number of elements of positions array

Definition at line 151 of file vf_drawtext.c.

Referenced by draw_text(), and uninit().

◆ textfile

char* DrawTextContext::textfile

file with text to be drawn

Definition at line 152 of file vf_drawtext.c.

Referenced by init(), and load_textfile().

◆ x

int DrawTextContext::x

x position to start drawing text

Definition at line 153 of file vf_drawtext.c.

Referenced by draw_glyphs(), draw_text(), and filter_frame().

◆ y

int DrawTextContext::y

y position to start drawing text

Definition at line 154 of file vf_drawtext.c.

Referenced by draw_glyphs(), draw_text(), and filter_frame().

◆ max_glyph_w

int DrawTextContext::max_glyph_w

max glyph width

Definition at line 155 of file vf_drawtext.c.

Referenced by draw_text().

◆ max_glyph_h

int DrawTextContext::max_glyph_h

max glyph height

Definition at line 156 of file vf_drawtext.c.

Referenced by draw_text().

◆ shadowx

int DrawTextContext::shadowx

Definition at line 157 of file vf_drawtext.c.

Referenced by draw_text().

◆ shadowy

int DrawTextContext::shadowy

Definition at line 157 of file vf_drawtext.c.

Referenced by draw_text().

◆ borderw

int DrawTextContext::borderw

border width

Definition at line 158 of file vf_drawtext.c.

Referenced by draw_glyphs(), draw_text(), init(), and load_glyph().

◆ fontsize_expr

char* DrawTextContext::fontsize_expr

expression for fontsize

Definition at line 159 of file vf_drawtext.c.

Referenced by parse_fontsize(), and update_fontsize().

◆ fontsize_pexpr

AVExpr* DrawTextContext::fontsize_pexpr

parsed expressions for fontsize

Definition at line 160 of file vf_drawtext.c.

Referenced by init(), load_font_file(), parse_fontsize(), uninit(), and update_fontsize().

◆ fontsize

unsigned int DrawTextContext::fontsize

font size to use

Definition at line 161 of file vf_drawtext.c.

Referenced by draw_glyphs(), draw_text(), init(), load_glyph(), set_fontsize(), and update_fontsize().

◆ default_fontsize

unsigned int DrawTextContext::default_fontsize

default font size to use

Definition at line 162 of file vf_drawtext.c.

Referenced by init(), load_font_file(), and update_fontsize().

◆ line_spacing

int DrawTextContext::line_spacing

lines spacing in pixels

Definition at line 164 of file vf_drawtext.c.

Referenced by draw_text().

◆ draw_box

short int DrawTextContext::draw_box

draw box around text - true or false

Definition at line 165 of file vf_drawtext.c.

Referenced by draw_text().

◆ boxborderw

int DrawTextContext::boxborderw

box border width

Definition at line 166 of file vf_drawtext.c.

Referenced by draw_text().

◆ use_kerning

int DrawTextContext::use_kerning

font kerning is used - true/false

Definition at line 167 of file vf_drawtext.c.

Referenced by draw_text(), and init().

◆ tabsize

int DrawTextContext::tabsize

tab size

Definition at line 168 of file vf_drawtext.c.

Referenced by draw_text(), and init().

◆ fix_bounds

int DrawTextContext::fix_bounds

do we let it go out of frame bounds - t/f

Definition at line 169 of file vf_drawtext.c.

Referenced by draw_text().

◆ dc

FFDrawContext DrawTextContext::dc

Definition at line 171 of file vf_drawtext.c.

Referenced by config_input(), draw_glyphs(), draw_text(), and update_color_with_alpha().

◆ fontcolor

FFDrawColor DrawTextContext::fontcolor

foreground color

Definition at line 172 of file vf_drawtext.c.

Referenced by config_input(), and draw_text().

◆ shadowcolor

FFDrawColor DrawTextContext::shadowcolor

shadow color

Definition at line 173 of file vf_drawtext.c.

Referenced by config_input(), and draw_text().

◆ bordercolor

FFDrawColor DrawTextContext::bordercolor

border color

Definition at line 174 of file vf_drawtext.c.

Referenced by config_input(), and draw_text().

◆ boxcolor

FFDrawColor DrawTextContext::boxcolor

background color

Definition at line 175 of file vf_drawtext.c.

Referenced by config_input(), and draw_text().

◆ library

FT_Library DrawTextContext::library

freetype font library handle

Definition at line 177 of file vf_drawtext.c.

Referenced by init(), load_font_file(), and uninit().

◆ face

FT_Face DrawTextContext::face

freetype font face handle

Definition at line 178 of file vf_drawtext.c.

Referenced by draw_text(), init(), load_font_file(), load_glyph(), set_fontsize(), and uninit().

◆ stroker

FT_Stroker DrawTextContext::stroker

freetype stroker handle

Definition at line 179 of file vf_drawtext.c.

Referenced by init(), load_glyph(), and uninit().

◆ glyphs

struct AVTreeNode* DrawTextContext::glyphs

rendered glyphs, stored using the UTF-32 char code

Definition at line 180 of file vf_drawtext.c.

Referenced by draw_glyphs(), draw_text(), load_glyph(), and uninit().

◆ x_expr

char* DrawTextContext::x_expr

expression for x position

Definition at line 181 of file vf_drawtext.c.

Referenced by config_input().

◆ y_expr

char* DrawTextContext::y_expr

expression for y position

Definition at line 182 of file vf_drawtext.c.

Referenced by config_input().

◆ x_pexpr

AVExpr* DrawTextContext::x_pexpr

Definition at line 183 of file vf_drawtext.c.

Referenced by config_input(), draw_text(), and uninit().

◆ y_pexpr

AVExpr * DrawTextContext::y_pexpr

parsed expressions for x and y

Definition at line 183 of file vf_drawtext.c.

Referenced by config_input(), draw_text(), and uninit().

◆ basetime

int64_t DrawTextContext::basetime

base pts time in the real world for display

Definition at line 184 of file vf_drawtext.c.

Referenced by draw_text().

◆ var_values

double DrawTextContext::var_values[VAR_VARS_NB]

Definition at line 185 of file vf_drawtext.c.

Referenced by config_input(), draw_text(), filter_frame(), func_eval_expr(), func_eval_expr_int_format(), func_frame_num(), func_pict_type(), func_pts(), load_font_file(), update_alpha(), and update_fontsize().

◆ a_expr

char* DrawTextContext::a_expr

Definition at line 186 of file vf_drawtext.c.

Referenced by config_input().

◆ a_pexpr

AVExpr* DrawTextContext::a_pexpr

Definition at line 187 of file vf_drawtext.c.

Referenced by config_input(), uninit(), and update_alpha().

◆ alpha

int DrawTextContext::alpha

Definition at line 188 of file vf_drawtext.c.

Referenced by update_alpha(), and update_color_with_alpha().

◆ prng

AVLFG DrawTextContext::prng

random

Definition at line 189 of file vf_drawtext.c.

Referenced by config_input(), draw_text(), func_eval_expr(), func_eval_expr_int_format(), load_font_file(), update_alpha(), and update_fontsize().

◆ tc_opt_string

char* DrawTextContext::tc_opt_string

specified timecode option string

Definition at line 190 of file vf_drawtext.c.

Referenced by draw_text(), and init().

◆ tc_rate

AVRational DrawTextContext::tc_rate

frame rate for timecode

Definition at line 191 of file vf_drawtext.c.

Referenced by init().

◆ tc

AVTimecode DrawTextContext::tc

timecode context

Definition at line 192 of file vf_drawtext.c.

Referenced by draw_text(), and init().

◆ tc24hmax

int DrawTextContext::tc24hmax

1 if timecode is wrapped to 24 hours, 0 otherwise

Definition at line 193 of file vf_drawtext.c.

Referenced by init().

◆ reload

int DrawTextContext::reload

reload text file for each frame

Definition at line 194 of file vf_drawtext.c.

Referenced by filter_frame(), and init().

◆ start_number

int DrawTextContext::start_number

starting frame number for n/frame_num var

Definition at line 195 of file vf_drawtext.c.

Referenced by filter_frame().

◆ metadata

AVDictionary* DrawTextContext::metadata

Definition at line 199 of file vf_drawtext.c.

Referenced by filter_frame(), and func_metadata().

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

libavfilter/vf_drawtext.c

Data Fields

Detailed Description

Field Documentation

◆ class

◆ exp_mode

◆ reinit

◆ fontfile

◆ text

◆ expanded_text

◆ fontcolor_expr

◆ expanded_fontcolor

◆ ft_load_flags

◆ positions

◆ nb_positions

◆ textfile

◆ x

◆ y

◆ max_glyph_w

◆ max_glyph_h

◆ shadowx

◆ shadowy

◆ borderw

◆ fontsize_expr

◆ fontsize_pexpr

◆ fontsize

◆ default_fontsize

◆ line_spacing

◆ draw_box

◆ boxborderw

◆ use_kerning

◆ tabsize

◆ fix_bounds

◆ dc

◆ fontcolor

◆ shadowcolor

◆ bordercolor

◆ boxcolor

◆ library

◆ face

◆ stroker

◆ glyphs

◆ x_expr

◆ y_expr

◆ x_pexpr

◆ y_pexpr

◆ basetime

◆ var_values

◆ a_expr

◆ a_pexpr

◆ alpha

◆ prng

◆ tc_opt_string

◆ tc_rate

◆ tc

◆ tc24hmax

◆ reload

◆ start_number

◆ metadata