bluescreen.c File Reference

Include dependency graph for bluescreen.c:

Data Structures
struct	filter_sys_t
	filter_sys_t: chroma method descriptor More...
Defines
#define	BLUESCREEN_HELP
#define	BLUESCREENU_TEXT   N_("Bluescreen U value")
#define	BLUESCREENU_LONGTEXT
#define	BLUESCREENV_TEXT   N_("Bluescreen V value")
#define	BLUESCREENV_LONGTEXT
#define	BLUESCREENUTOL_TEXT   N_("Bluescreen U tolerance")
#define	BLUESCREENUTOL_LONGTEXT
#define	BLUESCREENVTOL_TEXT   N_("Bluescreen V tolerance")
#define	BLUESCREENVTOL_LONGTEXT
#define	CFG_PREFIX   "bluescreen-"
#define	GET_VAR(name, min, max)
#define	VAR_IS(a)   !strcmp( psz_var, CFG_PREFIX a )
Functions
static int	Create (vlc_object_t *)
static void	Destroy (vlc_object_t *)
static picture_t *	Filter (filter_t *, picture_t *)
static int	BluescreenCallback (vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void *)
int	vlc_entry__main (module_t *p_module)
const char *	vlc_entry_license__main (void)
Variables
static const char *const	ppsz_filter_options []

---

Define Documentation

#define BLUESCREEN_HELP

Value:

N_( \
    "This effect, also known as \"greenscreen\" or \"chroma key\" blends " \
    "the \"blue parts\" of the foreground image of the mosaic on the " \
    "background (like weather forecasts). You can choose the \"key\" " \
    "color for blending (blue by default)." )

#define BLUESCREENU_LONGTEXT

Value:

N_( \
        "\"U\" value for the bluescreen key color " \
        "(in YUV values). From 0 to 255. Defaults to 120 for blue." )

#define BLUESCREENU_TEXT   N_("Bluescreen U value")

#define BLUESCREENUTOL_LONGTEXT

Value:

N_( \
        "Tolerance of the bluescreen blender " \
        "on color variations for the U plane. A value between 10 and 20 " \
        "seems sensible." )

#define BLUESCREENUTOL_TEXT   N_("Bluescreen U tolerance")

#define BLUESCREENV_LONGTEXT

Value:

N_( \
        "\"V\" value for the bluescreen key color " \
        "(in YUV values). From 0 to 255. Defaults to 90 for blue." )

#define BLUESCREENV_TEXT   N_("Bluescreen V value")

#define BLUESCREENVTOL_LONGTEXT

Value:

N_( \
        "Tolerance of the bluescreen blender " \
        "on color variations for the V plane. A value between 10 and 20 " \
        "seems sensible." )

#define BLUESCREENVTOL_TEXT   N_("Bluescreen V tolerance")

#define CFG_PREFIX   "bluescreen-"

#define GET_VAR	(	name,
		min,
		max		)

Value:

val = var_CreateGetIntegerCommand( p_filter, CFG_PREFIX #name );        \
    p_sys->i_##name = __MIN( max, __MAX( min, val ) );                      \
    var_AddCallback( p_filter, CFG_PREFIX #name, BluescreenCallback, p_sys );

Referenced by Create(), and CreateFilter().

#define VAR_IS

(

a

)

!strcmp( psz_var, CFG_PREFIX a )

---

Function Documentation

static int BluescreenCallback	(	vlc_object_t *	p_this,
		char const *	psz_var,
		vlc_value_t	oldval,
		vlc_value_t	newval,
		void *	p_data
	)			[static]

References __MAX, __MIN, vlc_value_t::i_int, filter_sys_t::i_u, filter_sys_t::i_ut, filter_sys_t::i_v, filter_sys_t::i_vt, filter_sys_t::lock, p_sys, VAR_IS, vlc_mutex_lock(), vlc_mutex_unlock(), VLC_SUCCESS, and VLC_UNUSED.

Referenced by Destroy().

static int Create

(

vlc_object_t *

p_this

)

[static]

References CFG_PREFIX, config_ChainParse, Filter(), filter_t::fmt_in, GET_VAR, video_format_t::i_chroma, filter_sys_t::lock, msg_Err, filter_sys_t::p_at, filter_t::p_cfg, filter_t::p_sys, p_sys, ppsz_filter_options, es_format_t::video, VLC_CODEC_YUVA, VLC_EGENERIC, VLC_ENOMEM, vlc_mutex_init(), and VLC_SUCCESS.

static void Destroy

(

vlc_object_t *

p_this

)

[static]

References BluescreenCallback(), CFG_PREFIX, filter_sys_t::lock, filter_sys_t::p_at, filter_t::p_sys, p_sys, var_DelCallback, and vlc_mutex_destroy().

static picture_t * Filter	(	filter_t *	p_filter,
		picture_t *	p_pic
	)			[static]

References A_PLANE, picture_t::format, i, video_format_t::i_chroma, plane_t::i_lines, plane_t::i_pitch, filter_sys_t::i_u, filter_sys_t::i_ut, filter_sys_t::i_v, filter_sys_t::i_vt, filter_sys_t::lock, msg_Err, picture_t::p, filter_sys_t::p_at, plane_t::p_pixels, filter_t::p_sys, p_sys, U_PLANE, V_PLANE, VLC_CODEC_YUVA, vlc_memset(), vlc_mutex_lock(), vlc_mutex_unlock(), and xrealloc().

int vlc_entry__main

(

module_t *

p_module

)

const char* vlc_entry_license__main

(

void

)

---

Variable Documentation

const char* const ppsz_filter_options[] [static]

Initial value:

 {
    "u", "v", "ut", "vt", NULL
}