freetype.c File Reference

Include dependency graph for freetype.c:

Data Structures
struct	line_desc_t
struct	font_stack_t
struct	ft_style_t
struct	filter_sys_t
	filter_sys_t: chroma method descriptor More...
Defines
#define	FT_FLOOR(X)   ((X & -64) >> 6)
#define	FT_CEIL(X)   (((X + 63) & -64) >> 6)
#define	FT_MulFix(v, s)   (((v)*(s))>>16)
#define	DEFAULT_FONT   "/usr/share/fonts/truetype/freefont/FreeSerifBold.ttf"
#define	FC_DEFAULT_FONT   "Serif Bold"
#define	FONT_TEXT   N_("Font")
#define	FONT_LONGTEXT   N_("Filename for the font you want to use")
#define	FONTSIZE_TEXT   N_("Font size in pixels")
#define	FONTSIZE_LONGTEXT
#define	OPACITY_TEXT   N_("Opacity")
#define	OPACITY_LONGTEXT
#define	COLOR_TEXT   N_("Text default color")
#define	COLOR_LONGTEXT
#define	FONTSIZER_TEXT   N_("Relative font size")
#define	FONTSIZER_LONGTEXT
#define	YUVP_TEXT   N_("Use YUVP renderer")
#define	YUVP_LONGTEXT
#define	EFFECT_TEXT   N_("Font Effect")
#define	EFFECT_LONGTEXT
#define	EFFECT_BACKGROUND   1
#define	EFFECT_OUTLINE   2
#define	EFFECT_OUTLINE_FAT   3
#define	face   p_sys->p_face
#define	glyph   face->glyph
Typedefs
typedef line_desc_t	line_desc_t
typedef font_stack_t	font_stack_t
Functions
static int	Create (vlc_object_t *)
static void	Destroy (vlc_object_t *)
int	vlc_entry__main (module_t *p_module)
const char *	vlc_entry_license__main (void)
static int	RenderText (filter_t *p_filter, subpicture_region_t *p_region_out, subpicture_region_t *p_region_in)
	This function renders a text subpicture region into another one.
static int	LoadFontsFromAttachments (filter_t *p_filter)
static int	GetFontSize (filter_t *p_filter)
static int	SetFontSize (filter_t *, int)
static void	YUVFromRGB (uint32_t i_argb, uint8_t *pi_y, uint8_t *pi_u, uint8_t *pi_v)
static line_desc_t *	NewLine (int)
static int	Render (filter_t *, subpicture_region_t *, line_desc_t *, int, int)
static void	FreeLines (line_desc_t *)
static void	FreeLine (line_desc_t *)
static void	UnderlineGlyphYUVA (int i_line_thickness, int i_line_offset, bool b_ul_next_char, FT_BitmapGlyph p_this_glyph, FT_Vector *p_this_glyph_pos, FT_BitmapGlyph p_next_glyph, FT_Vector *p_next_glyph_pos, int i_glyph_tmax, int i_align_offset, uint8_t i_y, uint8_t i_u, uint8_t i_v, subpicture_region_t *p_region)
static void	DrawBlack (line_desc_t *p_line, int i_width, subpicture_region_t *p_region, int xoffset, int yoffset)
static int	RenderYUVA (filter_t *p_filter, subpicture_region_t *p_region, line_desc_t *p_line, int i_width, int i_height)
Variables
static const int	pi_sizes [] = { 20, 18, 16, 12, 6 }
static const char *const	ppsz_sizes_text []
static int const	pi_effects [] = { 1, 2, 3 }
static const char *const	ppsz_effects_text []
static const int	pi_color_values []
static const char *const	ppsz_color_descriptions []

---

Define Documentation

#define COLOR_LONGTEXT

Value:

N_("The color of the text that will be rendered on "\
    "the video. This must be an hexadecimal (like HTML colors). The first two "\
    "chars are for red, then green, then blue. #000000 = black, #FF0000 = red,"\
    " #00FF00 = green, #FFFF00 = yellow (red + green), #FFFFFF = white" )

#define COLOR_TEXT   N_("Text default color")

#define DEFAULT_FONT   "/usr/share/fonts/truetype/freefont/FreeSerifBold.ttf"

#define EFFECT_BACKGROUND   1

#define EFFECT_LONGTEXT

Value:

N_("It is possible to apply effects to the rendered " \
"text to improve its readability." )

#define EFFECT_OUTLINE   2

#define EFFECT_OUTLINE_FAT   3

#define EFFECT_TEXT   N_("Font Effect")

#define face   p_sys->p_face

#define FC_DEFAULT_FONT   "Serif Bold"

#define FONT_LONGTEXT   N_("Filename for the font you want to use")

#define FONT_TEXT   N_("Font")

#define FONTSIZE_LONGTEXT

Value:

N_("This is the default size of the fonts " \
    "that will be rendered on the video. " \
    "If set to something different than 0 this option will override the " \
    "relative font size." )

#define FONTSIZE_TEXT   N_("Font size in pixels")

#define FONTSIZER_LONGTEXT

Value:

N_("This is the relative default size of the " \
    "fonts that will be rendered on the video. If absolute font size is set, "\
    "relative size will be overriden." )

#define FONTSIZER_TEXT   N_("Relative font size")

#define FT_CEIL

(

X

)

(((X + 63) & -64) >> 6)

#define FT_FLOOR

(

X

)

((X & -64) >> 6)

#define FT_MulFix	(	v,
		s		)	(((v)*(s))>>16)

#define glyph   face->glyph

#define OPACITY_LONGTEXT

Value:

N_("The opacity (inverse of transparency) of the " \
    "text that will be rendered on the video. 0 = transparent, " \
    "255 = totally opaque. " )

#define OPACITY_TEXT   N_("Opacity")

#define YUVP_LONGTEXT

Value:

N_("This renders the font using \"paletized YUV\". " \
  "This option is only needed if you want to encode into DVB subtitles" )

#define YUVP_TEXT   N_("Use YUVP renderer")

---

Typedef Documentation

typedef struct font_stack_t font_stack_t

typedef struct line_desc_t line_desc_t

---

Function Documentation

static int Create

(

vlc_object_t *

)

[static]

static void Destroy

(

vlc_object_t *

)

[static]

static void DrawBlack	(	line_desc_t *	p_line,
		int	i_width,
		subpicture_region_t *	p_region,
		int	xoffset,
		int	yoffset
	)			[static]

static void FreeLine

(

line_desc_t *

)

[static]

static void FreeLines

(

line_desc_t *

)

[static]

static int GetFontSize

(

filter_t *

p_filter

)

[static]

static int LoadFontsFromAttachments

(

filter_t *

p_filter

)

[static]

static line_desc_t * NewLine

(

int

)

[static]

static int Render	(	filter_t *	,
		subpicture_region_t *	,
		line_desc_t *	,
		int	,
		int
	)			[static]

static int RenderText	(	filter_t *	p_filter,
		subpicture_region_t *	p_region_out,
		subpicture_region_t *	p_region_in
	)			[static]

This function renders a text subpicture region into another one.

It also calculates the size needed for this string, and renders the needed glyphs into memory. It is used as pf_add_string callback in the vout method by this module

static int RenderYUVA	(	filter_t *	p_filter,
		subpicture_region_t *	p_region,
		line_desc_t *	p_line,
		int	i_width,
		int	i_height
	)			[static]

static int SetFontSize	(	filter_t *	,
		int
	)			[static]

static void UnderlineGlyphYUVA	(	int	i_line_thickness,
		int	i_line_offset,
		bool	b_ul_next_char,
		FT_BitmapGlyph	p_this_glyph,
		FT_Vector *	p_this_glyph_pos,
		FT_BitmapGlyph	p_next_glyph,
		FT_Vector *	p_next_glyph_pos,
		int	i_glyph_tmax,
		int	i_align_offset,
		uint8_t	i_y,
		uint8_t	i_u,
		uint8_t	i_v,
		subpicture_region_t *	p_region
	)			[static]

int vlc_entry__main

(

module_t *

p_module

)

const char* vlc_entry_license__main

(

void

)

static void YUVFromRGB	(	uint32_t	i_argb,
		uint8_t *	pi_y,
		uint8_t *	pi_u,
		uint8_t *	pi_v
	)			[static]

---

Variable Documentation

const int pi_color_values[] [static]

Initial value:

 {
  0x00000000, 0x00808080, 0x00C0C0C0, 0x00FFFFFF, 0x00800000,
  0x00FF0000, 0x00FF00FF, 0x00FFFF00, 0x00808000, 0x00008000, 0x00008080,
  0x0000FF00, 0x00800080, 0x00000080, 0x000000FF, 0x0000FFFF }

int const pi_effects[] = { 1, 2, 3 } [static]

const int pi_sizes[] = { 20, 18, 16, 12, 6 } [static]

const char* const ppsz_color_descriptions[] [static]

Initial value:

 {
  N_("Black"), N_("Gray"), N_("Silver"), N_("White"), N_("Maroon"),
  N_("Red"), N_("Fuchsia"), N_("Yellow"), N_("Olive"), N_("Green"), N_("Teal"),
  N_("Lime"), N_("Purple"), N_("Navy"), N_("Blue"), N_("Aqua") }

const char* const ppsz_effects_text[] [static]

Initial value:

 {
    N_("Background"),N_("Outline"), N_("Fat Outline") }

const char* const ppsz_sizes_text[] [static]

Initial value:

 {
    N_("Smaller"), N_("Small"), N_("Normal"), N_("Large"), N_("Larger") }

---