DrawTextContext Struct Reference

Data Fields

const AVClassclass
uint8_t * fontfile
 font to be used
uint8_t * text
 text to be drawn
uint8_t * expanded_text
 used to contain the strftime()-expanded text
size_t expanded_text_size
 size in bytes of the expanded_text buffer
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
int y
 position to start drawing text
int w
int h
 dimension of the text block
int shadowx
int shadowy
unsigned int fontsize
 font size to use
char * fontcolor_string
 font color as string
char * boxcolor_string
 box color as string
char * shadowcolor_string
 shadow color as string
uint8_t fontcolor [4]
 foreground color
uint8_t boxcolor [4]
 background color
uint8_t shadowcolor [4]
 shadow color
uint8_t fontcolor_rgba [4]
 foreground color in RGBA
uint8_t boxcolor_rgba [4]
 background color in RGBA
uint8_t shadowcolor_rgba [4]
 shadow color in RGBA
short int draw_box
 draw box around text - true or false
int use_kerning
 font kerning is used - true/false
int tabsize
 tab size
FT_Library library
 freetype font library handle
FT_Face face
 freetype font face handle
struct AVTreeNodeglyphs
 rendered glyphs, stored using the UTF-32 char code
int hsub
int vsub
 chroma subsampling values
int is_packed_rgb
int pixel_step [4]
 distance in bytes between the component of each pixel
uint8_t rgba_map [4]
 map RGBA offsets to the positions in the packed RGBA format
uint8_t * box_line [4]
 line used for filling the box background
char * x_expr
char * y_expr
AVExprx_pexpr
AVExpry_pexpr
 parsed expressions for x and y
double var_values [VAR_VARS_NB]
char * d_expr
AVExprd_pexpr
int draw
 set to zero to prevent drawing
AVLFG prng
 random

Detailed Description

Definition at line 97 of file vf_drawtext.c.

Field Documentation

uint8_t* DrawTextContext::box_line[4]

line used for filling the box background

Definition at line 132 of file vf_drawtext.c.

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

uint8_t DrawTextContext::boxcolor[4]

background color

Definition at line 115 of file vf_drawtext.c.

Referenced by config_input(), and draw_text().

uint8_t DrawTextContext::boxcolor_rgba[4]

background color in RGBA

Definition at line 118 of file vf_drawtext.c.

Referenced by config_input(), and init().

char* DrawTextContext::boxcolor_string

box color as string

Definition at line 112 of file vf_drawtext.c.

Referenced by init(), and uninit().

const AVClass* DrawTextContext::class

Definition at line 98 of file vf_drawtext.c.

Referenced by init().

char* DrawTextContext::d_expr

Definition at line 136 of file vf_drawtext.c.

Referenced by config_input().

AVExpr* DrawTextContext::d_pexpr

Definition at line 137 of file vf_drawtext.c.

Referenced by config_input(), and start_frame().

int DrawTextContext::draw

set to zero to prevent drawing

Definition at line 138 of file vf_drawtext.c.

Referenced by config_input(), end_frame(), and start_frame().

short int DrawTextContext::draw_box

draw box around text - true or false

Definition at line 121 of file vf_drawtext.c.

Referenced by draw_text().

uint8_t* DrawTextContext::expanded_text

used to contain the strftime()-expanded text

Definition at line 101 of file vf_drawtext.c.

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

size_t DrawTextContext::expanded_text_size

size in bytes of the expanded_text buffer

Definition at line 102 of file vf_drawtext.c.

Referenced by dtext_prepare_text().

FT_Face DrawTextContext::face

freetype font face handle

Definition at line 126 of file vf_drawtext.c.

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

uint8_t DrawTextContext::fontcolor[4]

foreground color

Definition at line 114 of file vf_drawtext.c.

Referenced by config_input(), and draw_text().

uint8_t DrawTextContext::fontcolor_rgba[4]

foreground color in RGBA

Definition at line 117 of file vf_drawtext.c.

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

char* DrawTextContext::fontcolor_string

font color as string

Definition at line 111 of file vf_drawtext.c.

Referenced by init(), and uninit().

uint8_t* DrawTextContext::fontfile

font to be used

Definition at line 99 of file vf_drawtext.c.

Referenced by init(), and uninit().

unsigned int DrawTextContext::fontsize

font size to use

Definition at line 110 of file vf_drawtext.c.

Referenced by init().

int DrawTextContext::ft_load_flags

flags used for loading fonts, see FT_LOAD_*

Definition at line 103 of file vf_drawtext.c.

Referenced by load_glyph().

struct AVTreeNode* DrawTextContext::glyphs

rendered glyphs, stored using the UTF-32 char code

Definition at line 127 of file vf_drawtext.c.

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

int DrawTextContext::h

dimension of the text block

Definition at line 108 of file vf_drawtext.c.

Referenced by draw_text(), dtext_prepare_text(), and start_frame().

int DrawTextContext::hsub

Definition at line 128 of file vf_drawtext.c.

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

int DrawTextContext::is_packed_rgb

Definition at line 129 of file vf_drawtext.c.

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

FT_Library DrawTextContext::library

freetype font library handle

Definition at line 125 of file vf_drawtext.c.

Referenced by init(), and uninit().

size_t DrawTextContext::nb_positions

number of elements of positions array

Definition at line 105 of file vf_drawtext.c.

Referenced by dtext_prepare_text().

int DrawTextContext::pixel_step[4]

distance in bytes between the component of each pixel

Definition at line 130 of file vf_drawtext.c.

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

FT_Vector* DrawTextContext::positions

positions for each element in the text

Definition at line 104 of file vf_drawtext.c.

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

AVLFG DrawTextContext::prng

random

Definition at line 139 of file vf_drawtext.c.

Referenced by config_input(), and start_frame().

uint8_t DrawTextContext::rgba_map[4]

map RGBA offsets to the positions in the packed RGBA format

Definition at line 131 of file vf_drawtext.c.

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

uint8_t DrawTextContext::shadowcolor[4]

shadow color

Definition at line 116 of file vf_drawtext.c.

Referenced by config_input(), and draw_text().

uint8_t DrawTextContext::shadowcolor_rgba[4]

shadow color in RGBA

Definition at line 119 of file vf_drawtext.c.

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

char* DrawTextContext::shadowcolor_string

shadow color as string

Definition at line 113 of file vf_drawtext.c.

Referenced by init(), and uninit().

int DrawTextContext::shadowx

Definition at line 109 of file vf_drawtext.c.

Referenced by draw_text().

int DrawTextContext::shadowy

Definition at line 109 of file vf_drawtext.c.

Referenced by draw_text().

int DrawTextContext::tabsize

tab size

Definition at line 123 of file vf_drawtext.c.

Referenced by dtext_prepare_text(), and init().

uint8_t* DrawTextContext::text

text to be drawn

Definition at line 100 of file vf_drawtext.c.

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

char* DrawTextContext::textfile

file with text to be drawn

Definition at line 106 of file vf_drawtext.c.

Referenced by init().

int DrawTextContext::use_kerning

font kerning is used - true/false

Definition at line 122 of file vf_drawtext.c.

Referenced by dtext_prepare_text(), and init().

double DrawTextContext::var_values[VAR_VARS_NB]

Definition at line 135 of file vf_drawtext.c.

Referenced by config_input(), end_frame(), and start_frame().

int DrawTextContext::vsub

chroma subsampling values

Definition at line 128 of file vf_drawtext.c.

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

int DrawTextContext::w

Definition at line 108 of file vf_drawtext.c.

Referenced by draw_text(), dtext_prepare_text(), and start_frame().

int DrawTextContext::x

Definition at line 107 of file vf_drawtext.c.

Referenced by draw_text(), dtext_prepare_text(), and start_frame().

char* DrawTextContext::x_expr

Definition at line 133 of file vf_drawtext.c.

Referenced by config_input().

AVExpr* DrawTextContext::x_pexpr

Definition at line 134 of file vf_drawtext.c.

Referenced by config_input(), and start_frame().

int DrawTextContext::y

position to start drawing text

Definition at line 107 of file vf_drawtext.c.

Referenced by draw_text(), and start_frame().

char * DrawTextContext::y_expr

Definition at line 133 of file vf_drawtext.c.

Referenced by config_input().

AVExpr * DrawTextContext::y_pexpr

parsed expressions for x and y

Definition at line 134 of file vf_drawtext.c.

Referenced by config_input(), and start_frame().


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