FFmpeg: DrawTextContext Struct Reference

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Data Fields

DrawTextContext Struct Reference

Data Fields

const AVClass * class

enum expansion_mode exp_mode

expansion mode to use for the text

int reinit

tells if the filter is being reinited

uint8_t * fontfile

font to be used

uint8_t * text

text to be drawn

AVBPrint expanded_text

used to contain the expanded text

int ft_load_flags

flags used for loading fonts, see FT_LOAD_*

FT_Vector * positions

positions for each element in the text

size_t nb_positions

number of elements of positions array

char * textfile

file with text to be drawn

int x

x position to start drawing text

int y

y position to start drawing text

int max_glyph_w

max glyph width

int max_glyph_h

max glyph height

int shadowx

int shadowy

unsigned int fontsize

font size to use

short int draw_box

draw box around text - true or false

int use_kerning

font kerning is used - true/false

int tabsize

tab size

int fix_bounds

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

FFDrawContext dc

FFDrawColor fontcolor

foreground color

FFDrawColor shadowcolor

shadow color

FFDrawColor boxcolor

background color

FT_Library library

freetype font library handle

FT_Face face

freetype font face handle

struct AVTreeNode * glyphs

rendered glyphs, stored using the UTF-32 char code

char * x_expr

expression for x position

char * y_expr

expression for y position

AVExpr * x_pexpr

AVExpr * y_pexpr

parsed expressions for x and y

int64_t basetime

base pts time in the real world for display

double var_values [VAR_VARS_NB]

char * draw_expr

expression for draw

AVExpr * draw_pexpr

parsed expression for draw

int draw

set to zero to prevent drawing

AVLFG prng

random

char * tc_opt_string

specified timecode option string

AVRational tc_rate

frame rate for timecode

AVTimecode tc

timecode context

int tc24hmax

1 if timecode is wrapped to 24 hours, 0 otherwise

int reload

reload text file for each frame

int start_number

starting frame number for n/frame_num var

AVDictionary * metadata

Detailed Description

Definition at line 122 of file vf_drawtext.c.

Field Documentation

const AVClass* DrawTextContext::class

Definition at line 123 of file vf_drawtext.c.

enum expansion_mode DrawTextContext::exp_mode

expansion mode to use for the text

Definition at line 124 of file vf_drawtext.c.

Referenced by draw_text(), and init().

int DrawTextContext::reinit

tells if the filter is being reinited

Definition at line 125 of file vf_drawtext.c.

Referenced by command().

uint8_t* DrawTextContext::fontfile

font to be used

Definition at line 126 of file vf_drawtext.c.

Referenced by init(), and load_font().

uint8_t* DrawTextContext::text

text to be drawn

Definition at line 127 of file vf_drawtext.c.

Referenced by draw_text(), expand_text(), init(), and load_textfile().

AVBPrint DrawTextContext::expanded_text

used to contain the expanded text

Definition at line 128 of file vf_drawtext.c.

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

int DrawTextContext::ft_load_flags

flags used for loading fonts, see FT_LOAD_*

Definition at line 129 of file vf_drawtext.c.

Referenced by load_glyph().

FT_Vector* DrawTextContext::positions

positions for each element in the text

Definition at line 130 of file vf_drawtext.c.

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

size_t DrawTextContext::nb_positions

number of elements of positions array

Definition at line 131 of file vf_drawtext.c.

Referenced by draw_text(), and uninit().

char* DrawTextContext::textfile

file with text to be drawn

Definition at line 132 of file vf_drawtext.c.

Referenced by init(), and load_textfile().

int DrawTextContext::x

x position to start drawing text

Definition at line 133 of file vf_drawtext.c.

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

int DrawTextContext::y

y position to start drawing text

Definition at line 134 of file vf_drawtext.c.

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

int DrawTextContext::max_glyph_w

max glyph width

Definition at line 135 of file vf_drawtext.c.

Referenced by draw_text().

int DrawTextContext::max_glyph_h

max glyph height

Definition at line 136 of file vf_drawtext.c.

Referenced by draw_text().

int DrawTextContext::shadowx

Definition at line 137 of file vf_drawtext.c.

Referenced by draw_text().

int DrawTextContext::shadowy

Definition at line 137 of file vf_drawtext.c.

Referenced by draw_text().

unsigned int DrawTextContext::fontsize

font size to use

Definition at line 138 of file vf_drawtext.c.

Referenced by init().

short int DrawTextContext::draw_box

draw box around text - true or false

Definition at line 140 of file vf_drawtext.c.

Referenced by draw_text().

int DrawTextContext::use_kerning

font kerning is used - true/false

Definition at line 141 of file vf_drawtext.c.

Referenced by draw_text(), and init().

int DrawTextContext::tabsize

tab size

Definition at line 142 of file vf_drawtext.c.

Referenced by draw_text(), and init().

int DrawTextContext::fix_bounds

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

Definition at line 143 of file vf_drawtext.c.

FFDrawContext DrawTextContext::dc

Definition at line 145 of file vf_drawtext.c.

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

FFDrawColor DrawTextContext::fontcolor

foreground color

Definition at line 146 of file vf_drawtext.c.

Referenced by config_input(), and draw_text().

FFDrawColor DrawTextContext::shadowcolor

shadow color

Definition at line 147 of file vf_drawtext.c.

Referenced by config_input(), and draw_text().

FFDrawColor DrawTextContext::boxcolor

background color

Definition at line 148 of file vf_drawtext.c.

Referenced by config_input(), and draw_text().

FT_Library DrawTextContext::library

freetype font library handle

Definition at line 150 of file vf_drawtext.c.

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

FT_Face DrawTextContext::face

freetype font face handle

Definition at line 151 of file vf_drawtext.c.

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

struct AVTreeNode* DrawTextContext::glyphs

rendered glyphs, stored using the UTF-32 char code

Definition at line 152 of file vf_drawtext.c.

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

char* DrawTextContext::x_expr

expression for x position

Definition at line 153 of file vf_drawtext.c.

Referenced by config_input().

char* DrawTextContext::y_expr

expression for y position

Definition at line 154 of file vf_drawtext.c.

Referenced by config_input().

AVExpr* DrawTextContext::x_pexpr

Definition at line 155 of file vf_drawtext.c.

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

AVExpr * DrawTextContext::y_pexpr

parsed expressions for x and y

Definition at line 155 of file vf_drawtext.c.

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

int64_t DrawTextContext::basetime

base pts time in the real world for display

Definition at line 156 of file vf_drawtext.c.

Referenced by draw_text().

double DrawTextContext::var_values[VAR_VARS_NB]

Definition at line 157 of file vf_drawtext.c.

Referenced by config_input(), draw_text(), filter_frame(), func_eval_expr(), func_frame_num(), func_pict_type(), and func_pts().

char* DrawTextContext::draw_expr

expression for draw

Definition at line 158 of file vf_drawtext.c.

Referenced by config_input().

AVExpr* DrawTextContext::draw_pexpr

parsed expression for draw

Definition at line 159 of file vf_drawtext.c.

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

int DrawTextContext::draw

set to zero to prevent drawing

Definition at line 160 of file vf_drawtext.c.

Referenced by draw_text().

AVLFG DrawTextContext::prng

random

Definition at line 161 of file vf_drawtext.c.

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

char* DrawTextContext::tc_opt_string

specified timecode option string

Definition at line 162 of file vf_drawtext.c.

Referenced by draw_text(), and init().

AVRational DrawTextContext::tc_rate

frame rate for timecode

Definition at line 163 of file vf_drawtext.c.

Referenced by init().

AVTimecode DrawTextContext::tc

timecode context

Definition at line 164 of file vf_drawtext.c.

Referenced by draw_text(), and init().

int DrawTextContext::tc24hmax

1 if timecode is wrapped to 24 hours, 0 otherwise

Definition at line 165 of file vf_drawtext.c.

Referenced by init().

int DrawTextContext::reload

reload text file for each frame

Definition at line 166 of file vf_drawtext.c.

Referenced by filter_frame(), and init().

int DrawTextContext::start_number

starting frame number for n/frame_num var

Definition at line 167 of file vf_drawtext.c.

Referenced by filter_frame().

AVDictionary* DrawTextContext::metadata

Definition at line 168 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

Generated on Wed Jul 10 2013 23:48:36 for FFmpeg by doxygen 1.8.2