X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=include%2Fvlc_osd.h;h=bfbd4272e9f38fda217d184aed09c036332b9ffe;hb=5ebacd11d10f9acc39afc0b3d41beb280eaac293;hp=bf47c87f2f4ea2ebc371dd920215ae83c84152b2;hpb=a92603f2093140f93c34f301a22eb5763abc4232;p=vlc diff --git a/include/vlc_osd.h b/include/vlc_osd.h index bf47c87f2f..bfbd4272e9 100644 --- a/include/vlc_osd.h +++ b/include/vlc_osd.h @@ -1,446 +1,680 @@ -/***************************************************************************** - * vlc_osd.h - OSD menu definitions and function prototypes - ***************************************************************************** - * Copyright (C) 2004-2005 M2X - * $Id: vlc_osd.h 9451 2004-12-01 01:07:08Z jpsaman $ - * - * Authors: Jean-Paul Saman - * - * Added code from include/osd.h written by: - * Copyright (C) 2003-2005 the VideoLAN team - * Authors: Sigmund Augdal - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. - *****************************************************************************/ - -/** - * \file - * The OSD menu core creates the OSD menu structure in memory. It parses a - * configuration file that defines all elements that are part of the menu. The - * core also handles all actions and menu structure updates on behalf of video - * subpicture filters. - * - * The file modules/video_filters/osdmenu.c implements a subpicture filter that - * specifies the final information on positioning of the current state image. - * A subpicture filter is called each time a video picture has to be rendered, it - * also gives a start and end date to the subpicture. The subpicture can be streamed - * if used inside a transcoding command. For example: - * - * vlc dvdsimple:///dev/dvd --extraintf rc - * --sout='#transcode{osd}:std{access=udp,mux=ts,url=dest_ipaddr}' - * --osdmenu-file=share/osdmenu/dvd.cfg - * - * Each OSD menu element, called "action", defines a hotkey action. Each action - * can have several states (unselect, select, pressed). Each state has an image - * that represents the state visually. The commands "menu right", "menu left", - * "menu up" and "menu down" are used to navigate through the OSD menu structure. - * The commands "menu on" or "menu show" and "menu off" or "menu hide" respectively - * show and hide the OSD menu subpictures. - * - * There is one special element called "range". A range is an arbritary range - * of state images that can be browsed using "menu up" and "menu down" commands - * on the rc interface. - * - * The OSD menu configuration file uses a very simple syntax and basic parser. - * A configuration file has the ".cfg". An example is "share/osdmenu/dvd256.cfg". - */ - -#ifndef _VLC_OSD_H -#define _VLC_OSD_H 1 - -#include "vlc_video.h" - -# ifdef __cplusplus -extern "C" { -# endif - -/** - * \brief The OSD Menu configuration file format. - * - * The configuration file syntax is very basic and so is its parser. See the - * BNF formal representation below: - * - * The keywords FILENAME and PATHNAME represent the filename and pathname specification - * that is valid for the Operating System VLC is compiled for. - * - * The hotkey actions that are supported by VLC are documented in the file src/libvlc. The - * file include/vlc_keys.h defines some hotkey internals. - * - * CONFIG_FILE = FILENAME '.cfg' - * WS = [ ' ' | '\t' ]+ - * OSDMEN_PATH = PATHNAME - * DIR = 'dir' WS OSDMENU_PATH '\n' - * STATE = [ 'unselect' | 'select' | 'pressed' ] - * HOTKEY_ACTION = 'key-' [ 'a' .. 'z', 'A' .. 'Z', '-' ]+ - * - * ACTION_TYPE = 'type' 'volume' '\n' - * ACTION_BLOCK_START = 'action' WS HOTKEY_ACTION WS '('POS','POS')' '\n' - * ACTION_BLOCK_END = 'end' '\n' - * ACTION_STATE = STATE WS FILENAME '\n' - * ACTION_RANGE_START = 'range' WS HOTKEY_ACTION WS DEFAULT_INDEX '\n' - * ACTION_RANGE_END = 'end' '\n' - * ACTION_RANGE_STATE = FILENAME '\n' - * - * ACTION_BLOCK_RANGE = ACTION_RANGE_START [WS ACTION_RANGE_STATE]+ WS ACTION_RANGE_END - * ACTION_BLOCK = ACTION_BLOCK_START [WS ACTION_TYPE*] [ [WS ACTION_STATE]+3 | [WS ACTION_BLOCK_RANGE]+1 ] ACTION_BLOCK_END - * CONFIG_FILE_CONTENTS = DIR [ACTION_BLOCK]+ - * - */ - -/** - * OSD menu position and picture type defines - */ - -#define OSD_ALIGN_LEFT 0x1 -#define OSD_ALIGN_RIGHT 0x2 -#define OSD_ALIGN_TOP 0x4 -#define OSD_ALIGN_BOTTOM 0x8 - -#define OSD_HOR_SLIDER 1 -#define OSD_VERT_SLIDER 2 - -#define OSD_PLAY_ICON 1 -#define OSD_PAUSE_ICON 2 -#define OSD_SPEAKER_ICON 3 -#define OSD_MUTE_ICON 4 - -/** - * Text style information. - * This struct is currently ignored - */ -struct text_style_t -{ - int i_size; - uint32_t i_color; - vlc_bool_t b_italic; - vlc_bool_t b_bold; - vlc_bool_t b_underline; -}; -static const text_style_t default_text_style = { 22, 0xffffff, VLC_FALSE, VLC_FALSE, VLC_FALSE }; - -/** - * OSD menu button states - * - * Every button has three states, either it is unselected, selected or pressed. - * An OSD menu skin can associate images with each state. - * - * OSD_BUTTON_UNSELECT 0 - * OSD_BUTTON_SELECT 1 - * OSD_BUTTON_PRESSED 2 - */ -#define OSD_BUTTON_UNSELECT 0 -#define OSD_BUTTON_SELECT 1 -#define OSD_BUTTON_PRESSED 2 - -/** - * OSD State object - * - * The OSD state object holds the state and associated images for a particular state - * on the screen. The picture is displayed when this state is the active state. - */ -struct osd_state_t -{ - osd_state_t *p_next; /*< pointer to next state */ - osd_state_t *p_prev; /*< pointer to previous state */ - picture_t *p_pic; /*< picture of state */ - - char *psz_state; /*< state name */ - int i_state; /*< state index */ -}; - -/** - * OSD Button object - * - * An OSD Button has different states. Each state has an image for display. - */ -struct osd_button_t -{ - osd_button_t *p_next; /*< pointer to next button */ - osd_button_t *p_prev; /*< pointer to previous button */ - osd_button_t *p_up; /*< pointer to up button */ - osd_button_t *p_down; /*< pointer to down button */ - - osd_state_t *p_current_state; /*< pointer to current state image */ - osd_state_t *p_states; /*< doubly linked list of states */ - picture_t *p_feedback; /*< feedback picture */ - - char *psz_name; /*< name of button */ - - /* These member should probably be a struct hotkey */ - char *psz_action; /*< hotkey action name on button*/ - char *psz_action_down; /*< hotkey action name on range buttons for command "menu down" */ - /* end of hotkey specifics */ - - int i_x; /*< x-position of button visible state image */ - int i_y; /*< y-position of button visible state image */ - - /* range style button */ - vlc_bool_t b_range; /*< button should be interpreted as range */ - int i_ranges; /*< number of states */ -}; - -/** - * OSD Menu State object - * - * Represents the current state as displayed. - */ -/* Represent the menu state */ -struct osd_menu_state_t -{ - int i_x; /*< x position of spu region */ - int i_y; /*< y position of spu region */ - int i_width; /*< width of spu region */ - int i_height; /*< height of spu region */ - - picture_t *p_pic; /*< pointer to picture to display */ - osd_button_t *p_visible; /*< shortcut to visible button */ - - vlc_bool_t b_menu_visible; /*< menu currently visible? */ - vlc_bool_t b_update; /*< update OSD Menu when VLC_TRUE */ - - /* quick hack to volume state. */ - osd_button_t *p_volume; /*< pointer to volume range object. */ -}; - -/** - * OSD Menu object - * - * The main OSD Menu object, which holds a linked list to all buttons - * and images that defines the menu. The p_state variable represents the - * current state of the OSD Menu. - */ -struct osd_menu_t -{ - VLC_COMMON_MEMBERS - - int i_x; /*< x-position of OSD Menu on the video screen */ - int i_y; /*< y-position of OSD Menu on the video screen */ - int i_width; /*< width of OSD Menu on the video screen */ - int i_height; /*< height of OSD Menu on the video screen */ - - char *psz_path; /*< directory where OSD menu images are stored */ - osd_button_t *p_button; /*< doubly linked list of buttons */ - osd_menu_state_t *p_state; /*< current state of OSD menu */ - - /* quick link in the linked list. */ - osd_button_t *p_last_button; /*< pointer to last button in the list */ -}; - -/** - * Initialize an osd_menu_t object - * - * This functions has to be called before any call to other osd_menu_t* functions. - * It creates the osd_menu object and holds a pointer to it during its lifetime. - */ -VLC_EXPORT( osd_menu_t *, __osd_MenuCreate, ( vlc_object_t *, const char * ) ); - -/** - * Delete the osd_menu_t object - * - * This functions has to be called to release the associated module and memory - * for the osdmenu. After return of this function the pointer to osd_menu_t* is invalid. - */ -VLC_EXPORT( void, __osd_MenuDelete, ( vlc_object_t *, osd_menu_t * ) ); - -/** - * Change state on an osd_button_t. - * - * This function selects the specified state and returns a pointer to it. The - * following states are currently supported: - * \see OSD_BUTTON_UNSELECT - * \see OSD_BUTTON_SELECT - * \see OSD_BUTTON_PRESSED - */ -VLC_EXPORT( osd_state_t *, __osd_StateChange, ( osd_state_t *, const int ) ); - -#define osd_MenuCreate(object,file) __osd_MenuCreate( VLC_OBJECT(object), file ) -#define osd_MenuDelete(object,osd) __osd_MenuDelete( VLC_OBJECT(object), osd ) -#define osd_StateChange(object,value) __osd_StateChange( object, value ) - -/** - * Show the OSD menu. - * - * Show the OSD menu on the video output or mux it into the stream. - * Every change to the OSD menu will now be visible in the output. An output - * can be a video output window or a stream (\see stream output) - */ -VLC_EXPORT( void, __osd_MenuShow, ( vlc_object_t * ) ); - -/** - * Hide the OSD menu. - * - * Stop showing the OSD menu on the video output or mux it into the stream. - */ -VLC_EXPORT( void, __osd_MenuHide, ( vlc_object_t * ) ); - -/** - * Activate the action of this OSD menu item. - * - * The rc interface command "menu select" triggers the sending of an hotkey action - * to the hotkey interface. The hotkey that belongs to the current highlighted - * OSD menu item will be used. - */ -VLC_EXPORT( void, __osd_MenuActivate, ( vlc_object_t * ) ); - -#define osd_MenuShow(object) __osd_MenuShow( VLC_OBJECT(object) ) -#define osd_MenuHide(object) __osd_MenuHide( VLC_OBJECT(object) ) -#define osd_MenuActivate(object) __osd_MenuActivate( VLC_OBJECT(object) ) - -/** - * Next OSD menu item - * - * Select the next OSD menu item to be highlighted. - * Note: The actual position on screen of the menu item is determined by the the - * OSD menu configuration file. - */ -VLC_EXPORT( void, __osd_MenuNext, ( vlc_object_t * ) ); - -/** - * Previous OSD menu item - * - * Select the previous OSD menu item to be highlighted. - * Note: The actual position on screen of the menu item is determined by the the - * OSD menu configuration file. - */ -VLC_EXPORT( void, __osd_MenuPrev, ( vlc_object_t * ) ); - -/** - * OSD menu item above - * - * Select the OSD menu item above the current item to be highlighted. - * Note: The actual position on screen of the menu item is determined by the the - * OSD menu configuration file. - */ -VLC_EXPORT( void, __osd_MenuUp, ( vlc_object_t * ) ); - -/** - * OSD menu item below - * - * Select the next OSD menu item below the current item to be highlighted. - * Note: The actual position on screen of the menu item is determined by the the - * OSD menu configuration file. - */ -VLC_EXPORT( void, __osd_MenuDown, ( vlc_object_t * ) ); - -#define osd_MenuNext(object) __osd_MenuNext( VLC_OBJECT(object) ) -#define osd_MenuPrev(object) __osd_MenuPrev( VLC_OBJECT(object) ) -#define osd_MenuUp(object) __osd_MenuUp( VLC_OBJECT(object) ) -#define osd_MenuDown(object) __osd_MenuDown( VLC_OBJECT(object) ) - -/** - * Display the audio volume bitmap. - * - * Display the correct audio volume bitmap that corresponds to the - * current Audio Volume setting. - */ -VLC_EXPORT( void, __osd_Volume, ( vlc_object_t * ) ); - -#define osd_Volume(object) __osd_Volume( VLC_OBJECT(object) ) - -/** - * Retrieve a non modifyable pointer to the OSD Menu state - * - */ -static inline const osd_menu_state_t *osd_GetMenuState( osd_menu_t *p_osd ) -{ - return( p_osd->p_state ); -} - -/** - * Get the last key press received by the OSD Menu - * - * Returns 0 when no key has been pressed or the value of the key pressed. - */ -static inline vlc_bool_t osd_GetKeyPressed( osd_menu_t *p_osd ) -{ - return( p_osd->p_state->b_update ); -} - -/** - * Set the key pressed to a value. - * - * Assign a new key value to the last key pressed on the OSD Menu. - */ -static inline void osd_SetKeyPressed( vlc_object_t *p_this, int i_value ) -{ - vlc_value_t val; - - val.i_int = i_value; - var_Set( p_this, "key-pressed", val ); -} - -/** - * Update the OSD Menu visibility flag. - * - * VLC_TRUE means OSD Menu should be shown. VLC_FALSE means OSD Menu should not be shown. - */ -static inline void osd_SetMenuVisible( osd_menu_t *p_osd, vlc_bool_t b_value ) -{ - vlc_value_t val; - - val.b_bool = p_osd->p_state->b_menu_visible = b_value; - var_Set( p_osd, "osd-menu-visible", val ); -} - -/** - * Update the OSD Menu update flag - * - * If the OSD Menu should be updated then set the update flag to VLC_TRUE, else to VLC_FALSE. - */ -static inline void osd_SetMenuUpdate( osd_menu_t *p_osd, vlc_bool_t b_value ) -{ - vlc_value_t val; - - val.b_bool = p_osd->p_state->b_update = b_value; - var_Set( p_osd, "osd-menu-update", val ); -} - -/** - * Textual feedback - * - * Functions that provide the textual feedback on the OSD. They are shown on hotkey commands. The feedback - * is also part of the osd_button_t object. The types are declared in the include file - * include/vlc_osd.h - * @see vlc_osd.h - */ -VLC_EXPORT( int, osd_ShowTextRelative, ( spu_t *, int, char *, text_style_t *, int, int, int, mtime_t ) ); -VLC_EXPORT( int, osd_ShowTextAbsolute, ( spu_t *, int, char *, text_style_t *, int, int, int, mtime_t, mtime_t ) ); -VLC_EXPORT( void,osd_Message, ( spu_t *, int, char *, ... ) ); - -/** - * Default feedback images - * - * Functions that provide the default OSD feedback images on hotkey commands. These feedback - * images are also part of the osd_button_t object. The types are declared in the include file - * include/vlc_osd.h - * @see vlc_osd.h - */ -VLC_EXPORT( int, osd_Slider, ( vlc_object_t *, spu_t *, int, int, int, int, short ) ); -VLC_EXPORT( int, osd_Icon, ( vlc_object_t *, spu_t *, int, int, int, short ) ); - -/** - * Loading and parse the OSD Configuration file - * - * These functions load/unload the OSD menu configuration file and create/destroy the - * themable OSD menu structure on the OSD object. - */ -VLC_EXPORT( int, osd_ConfigLoader, ( vlc_object_t *, const char *, osd_menu_t ** ) ); -VLC_EXPORT( void, osd_ConfigUnload, ( vlc_object_t *, osd_menu_t ** ) ); - -# ifdef __cplusplus -} -# endif - -#endif /* _VLC_OSD_H */ +/***************************************************************************** + * vlc_osd.h - OSD menu and subpictures definitions and function prototypes + ***************************************************************************** + * Copyright (C) 1999-2006 the VideoLAN team + * Copyright (C) 2004-2005 M2X + * $Id$ + * + * Authors: Jean-Paul Saman + * Gildas Bazin + * + * Added code from include/osd.h written by: + * Copyright (C) 2003-2005 the VideoLAN team + * Authors: Sigmund Augdal Helberg + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. + *****************************************************************************/ + +#ifndef _VLC_OSD_H +#define _VLC_OSD_H 1 + +#include "vlc_vout.h" + +# ifdef __cplusplus +extern "C" { +# endif + +/********************************************************************** + * Base SPU structures + **********************************************************************/ +/** + * \defgroup spu Subpicture Unit + * This module describes the programming interface for the subpicture unit. + * It includes functions allowing to create/destroy an spu, create/destroy + * subpictures and render them. + * @{ + */ + +#include + +/** + * Subpicture unit descriptor + */ +struct spu_t +{ + VLC_COMMON_MEMBERS + + vlc_mutex_t subpicture_lock; /**< subpicture heap lock */ + subpicture_t p_subpicture[VOUT_MAX_SUBPICTURES]; /**< subpictures */ + int i_channel; /**< number of subpicture channels registered */ + + filter_t *p_blend; /**< alpha blending module */ + filter_t *p_text; /**< text renderer module */ + filter_t *p_scale_yuvp; /**< scaling module for YUVP */ + filter_t *p_scale; /**< scaling module (all but YUVP) */ + bool b_force_crop; /**< force cropping of subpicture */ + int i_crop_x, i_crop_y, i_crop_width, i_crop_height; /**< cropping */ + + int i_margin; /**< force position of a subpicture */ + bool b_force_palette; /**< force palette of subpicture */ + uint8_t palette[4][4]; /**< forced palette */ + + int ( *pf_control ) ( spu_t *, int, va_list ); + + /* Supciture filters */ + filter_chain_t *p_chain; +}; + +static inline int spu_vaControl( spu_t *p_spu, int i_query, va_list args ) +{ + if( p_spu->pf_control ) + return p_spu->pf_control( p_spu, i_query, args ); + else + return VLC_EGENERIC; +} + +static inline int spu_Control( spu_t *p_spu, int i_query, ... ) +{ + va_list args; + int i_result; + + va_start( args, i_query ); + i_result = spu_vaControl( p_spu, i_query, args ); + va_end( args ); + return i_result; +} + +enum spu_query_e +{ + SPU_CHANNEL_REGISTER, /* arg1= int * res= */ + SPU_CHANNEL_CLEAR /* arg1= int res= */ +}; + +#define spu_Create(a) __spu_Create(VLC_OBJECT(a)) +VLC_EXPORT( spu_t *, __spu_Create, ( vlc_object_t * ) ); +VLC_EXPORT( int, spu_Init, ( spu_t * ) ); +VLC_EXPORT( void, spu_Destroy, ( spu_t * ) ); +void spu_Attach( spu_t *, vlc_object_t *, bool ); + +VLC_EXPORT( subpicture_t *, spu_CreateSubpicture, ( spu_t * ) ); +VLC_EXPORT( void, spu_DestroySubpicture, ( spu_t *, subpicture_t * ) ); +VLC_EXPORT( void, spu_DisplaySubpicture, ( spu_t *, subpicture_t * ) ); + +#define spu_CreateRegion(a,b) __spu_CreateRegion(VLC_OBJECT(a),b) +VLC_EXPORT( subpicture_region_t *,__spu_CreateRegion, ( vlc_object_t *, video_format_t * ) ); +#define spu_MakeRegion(a,b,c) __spu_MakeRegion(VLC_OBJECT(a),b,c) +VLC_EXPORT( subpicture_region_t *,__spu_MakeRegion, ( vlc_object_t *, video_format_t *, picture_t * ) ); +#define spu_DestroyRegion(a,b) __spu_DestroyRegion(VLC_OBJECT(a),b) +VLC_EXPORT( void, __spu_DestroyRegion, ( vlc_object_t *, subpicture_region_t * ) ); +VLC_EXPORT( subpicture_t *, spu_SortSubpictures, ( spu_t *, mtime_t, bool ) ); +VLC_EXPORT( void, spu_RenderSubpictures, ( spu_t *, video_format_t *, picture_t *, picture_t *, subpicture_t *, int, int ) ); + +/** @}*/ + +/********************************************************************** + * OSD Menu + **********************************************************************/ +/** + * \defgroup osdmenu OSD Menu + * The OSD menu core creates the OSD menu structure in memory. It parses a + * configuration file that defines all elements that are part of the menu. The + * core also handles all actions and menu structure updates on behalf of video + * subpicture filters. + * + * The file modules/video_filters/osdmenu.c implements a subpicture filter that + * specifies the final information on positioning of the current state image. + * A subpicture filter is called each time a video picture has to be rendered, + * it also gives a start and end date to the subpicture. The subpicture can be + * streamed if used inside a transcoding command. For example: + * + * vlc dvdsimple:///dev/dvd --extraintf rc + * --sout='#transcode{osd}:std{access=udp,mux=ts,dst=dest_ipaddr}' + * --osdmenu-file=share/osdmenu/dvd.cfg + * + * An example for local usage of the OSD menu is: + * + * vlc dvdsimple:///dev/dvd --extraintf rc + * --sub-filter osdmenu + * --osdmenu-file=share/osdmenu/dvd.cfg + * + * Each OSD menu element, called "action", defines a hotkey action. Each action + * can have several states (unselect, select, pressed). Each state has an image + * that represents the state visually. The commands "menu right", "menu left", + * "menu up" and "menu down" are used to navigate through the OSD menu structure. + * The commands "menu on" or "menu show" and "menu off" or "menu hide" respectively + * show and hide the OSD menu subpictures. + * + * There is one special element called "range". A range is an arbritary range + * of state images that can be browsed using "menu up" and "menu down" commands + * on the rc interface. + * + * The OSD menu configuration file uses a very simple syntax and basic parser. + * A configuration file has the ".cfg". + * An example is "share/osdmenu/dvd256.cfg". + * @{ + */ + +/** + * \brief The OSD Menu configuration file format. + * + * The configuration file syntax is very basic and so is its parser. See the + * BNF formal representation below: + * + * The keywords FILENAME and PATHNAME represent the filename and pathname + * specification that is valid for the Operating System VLC is compiled for. + * + * The hotkey actions that are supported by VLC are documented in the file + * src/libvlc. The file include/vlc_keys.h defines some hotkey internals. + * + * CONFIG_FILE = FILENAME '.cfg' + * WS = [ ' ' | '\t' ]+ + * OSDMENU_PATH = PATHNAME + * DIR = 'dir' WS OSDMENU_PATH '\n' + * STYLE = 'style' [ 'default' | 'concat' ] '\n' + * STATE = [ 'unselect' | 'select' | 'pressed' ] + * HOTKEY_ACTION = 'key-' [ 'a' .. 'z', 'A' .. 'Z', '-' ]+ + * + * ACTION_TYPE = 'type' 'volume' '\n' + * ACTION_BLOCK_START = 'action' WS HOTKEY_ACTION WS '('POS','POS')' '\n' + * ACTION_BLOCK_END = 'end' '\n' + * ACTION_STATE = STATE WS FILENAME '\n' + * ACTION_RANGE_START = 'range' WS HOTKEY_ACTION WS DEFAULT_INDEX '\n' + * ACTION_RANGE_END = 'end' '\n' + * ACTION_RANGE_STATE = FILENAME '\n' + * + * ACTION_BLOCK_RANGE = ACTION_RANGE_START [WS ACTION_RANGE_STATE]+ WS ACTION_RANGE_END + * ACTION_BLOCK = ACTION_BLOCK_START [WS ACTION_TYPE*] [ [WS ACTION_STATE]+3 | [WS ACTION_BLOCK_RANGE]+1 ] ACTION_BLOCK_END + * CONFIG_FILE_CONTENTS = DIR [ACTION_BLOCK]+ + * + */ + +/** + * OSD menu position and picture type defines + */ + +#define OSD_ALIGN_LEFT 0x1 +#define OSD_ALIGN_RIGHT 0x2 +#define OSD_ALIGN_TOP 0x4 +#define OSD_ALIGN_BOTTOM 0x8 + +#define OSD_HOR_SLIDER 1 +#define OSD_VERT_SLIDER 2 + +#define OSD_PLAY_ICON 1 +#define OSD_PAUSE_ICON 2 +#define OSD_SPEAKER_ICON 3 +#define OSD_MUTE_ICON 4 + +/** + * Text style + * + * A text style is used to specify the formatting of text. + * A font renderer can use the supplied information to render the + * text specified. + */ +struct text_style_t +{ + char * psz_fontname; /**< The name of the font */ + int i_font_size; /**< The font size in pixels */ + int i_font_color; /**< The color of the text 0xRRGGBB + (native endianness) */ + int i_font_alpha; /**< The transparency of the text. + 0x00 is fully opaque, + 0xFF fully transparent */ + int i_style_flags; /**< Formatting style flags */ + int i_outline_color; /**< The color of the outline 0xRRGGBB */ + int i_outline_alpha; /**< The transparency of the outline. + 0x00 is fully opaque, + 0xFF fully transparent */ + int i_shadow_color; /**< The color of the shadow 0xRRGGBB */ + int i_shadow_alpha; /**< The transparency of the shadow. + 0x00 is fully opaque, + 0xFF fully transparent */ + int i_background_color;/**< The color of the background 0xRRGGBB */ + int i_background_alpha;/**< The transparency of the background. + 0x00 is fully opaque, + 0xFF fully transparent */ + int i_karaoke_background_color;/**< Background color for karaoke 0xRRGGBB */ + int i_karaoke_background_alpha;/**< The transparency of the karaoke bg. + 0x00 is fully opaque, + 0xFF fully transparent */ + int i_outline_width; /**< The width of the outline in pixels */ + int i_shadow_width; /**< The width of the shadow in pixels */ + int i_spacing; /**< The spaceing between glyphs in pixels */ +}; + +/* Style flags for \ref text_style_t */ +#define STYLE_BOLD 1 +#define STYLE_ITALIC 2 +#define STYLE_OUTLINE 4 +#define STYLE_SHADOW 8 +#define STYLE_BACKGROUND 16 +#define STYLE_UNDERLINE 32 +#define STYLE_STRIKEOUT 64 + +static const text_style_t default_text_style = { NULL, 22, 0xffffff, 0xff, STYLE_OUTLINE, + 0x000000, 0xff, 0x000000, 0xff, 0xffffff, 0x80, 0xffffff, 0xff, 1, 0, -1 }; + +/** + * OSD menu button states + * + * Every button has three states, either it is unselected, selected or pressed. + * An OSD menu skin can associate images with each state. + * + * OSD_BUTTON_UNSELECT 0 + * OSD_BUTTON_SELECT 1 + * OSD_BUTTON_PRESSED 2 + */ +#define OSD_BUTTON_UNSELECT 0 +#define OSD_BUTTON_SELECT 1 +#define OSD_BUTTON_PRESSED 2 + +/** + * OSD State object + * + * The OSD state object holds the state and associated images for a + * particular state on the screen. The picture is displayed when this + * state is the active state. + */ +struct osd_state_t +{ + osd_state_t *p_next; /*< pointer to next state */ + osd_state_t *p_prev; /*< pointer to previous state */ + picture_t *p_pic; /*< picture of state */ + + char *psz_state; /*< state name */ + int i_state; /*< state index */ + + int i_x; /*< x-position of button state image */ + int i_y; /*< y-position of button state image */ + int i_width; /*< width of button state image */ + int i_height; /*< height of button state image */ +}; + +/** + * OSD Button object + * + * An OSD Button has different states. Each state has an image for display. + */ +struct osd_button_t +{ + osd_button_t *p_next; /*< pointer to next button */ + osd_button_t *p_prev; /*< pointer to previous button */ + osd_button_t *p_up; /*< pointer to up button */ + osd_button_t *p_down; /*< pointer to down button */ + + osd_state_t *p_current_state; /*< pointer to current state image */ + osd_state_t *p_states; /*< doubly linked list of states */ + picture_t *p_feedback; /*< feedback picture */ + + char *psz_name; /*< name of button */ + + /* These member should probably be a struct hotkey */ + char *psz_action; /*< hotkey action name on button*/ + char *psz_action_down; /*< hotkey action name on range buttons + for command "menu down" */ + /* end of hotkey specifics */ + + int i_x; /*< x-position of button visible state image */ + int i_y; /*< y-position of button visible state image */ + int i_width; /*< width of button visible state image */ + int i_height; /*< height of button visible state image */ + + /* range style button */ + bool b_range; /*< button should be interpreted as range */ + int i_ranges; /*< number of states */ +}; + +/** + * OSD Menu Style + * + * The images that make up an OSD menu can be created in such away that + * they contain all buttons in the same picture, with the selected one + * highlighted or being a concatenation of all the seperate images. The + * first case is the default. + * + * To change the default style the keyword 'style' should be set to 'concat'. + */ + +#define OSD_MENU_STYLE_SIMPLE 0x0 +#define OSD_MENU_STYLE_CONCAT 0x1 + +/** + * OSD Menu State object + * + * Represents the current state as displayed. + */ +/* Represent the menu state */ +struct osd_menu_state_t +{ + int i_x; /*< x position of spu region */ + int i_y; /*< y position of spu region */ + int i_width; /*< width of spu region */ + int i_height; /*< height of spu region */ + + picture_t *p_pic; /*< pointer to picture to display */ + osd_button_t *p_visible; /*< shortcut to visible button */ + + bool b_menu_visible; /*< menu currently visible? */ + bool b_update; /*< update OSD Menu when true */ + + /* quick hack to volume state. */ + osd_button_t *p_volume; /*< pointer to volume range object. */ +}; + +/** + * OSD Menu object + * + * The main OSD Menu object, which holds a linked list to all buttons + * and images that defines the menu. The p_state variable represents the + * current state of the OSD Menu. + */ +struct osd_menu_t +{ + VLC_COMMON_MEMBERS + + int i_x; /*< x-position of OSD Menu on the video screen */ + int i_y; /*< y-position of OSD Menu on the video screen */ + int i_width; /*< width of OSD Menu on the video screen */ + int i_height; /*< height of OSD Menu on the video screen */ + int i_style; /*< style of spu region generation */ + int i_position; /*< display position */ + + char *psz_path; /*< directory where OSD menu images are stored */ + osd_button_t *p_button; /*< doubly linked list of buttons */ + osd_menu_state_t *p_state; /*< current state of OSD menu */ + + /* quick link in the linked list. */ + osd_button_t *p_last_button; /*< pointer to last button in the list */ + + /* misc parser */ + module_t *p_parser; /*< pointer to parser module */ + char *psz_file; /*< Config file name */ + image_handler_t *p_image; /*< handler to image loading and conversion libraries */ +}; + +/** + * Initialize an osd_menu_t object + * + * This functions has to be called before any call to other osd_menu_t* + * functions. It creates the osd_menu object and holds a pointer to it + * during its lifetime. + */ +VLC_EXPORT( osd_menu_t *, __osd_MenuCreate, ( vlc_object_t *, const char * ) ); + +/** + * Delete the osd_menu_t object + * + * This functions has to be called to release the associated module and + * memory for the osdmenu. After return of this function the pointer to + * osd_menu_t* is invalid. + */ +VLC_EXPORT( void, __osd_MenuDelete, ( vlc_object_t *, osd_menu_t * ) ); + +#define osd_MenuCreate(object,file) __osd_MenuCreate( VLC_OBJECT(object), file ) +#define osd_MenuDelete(object,osd) __osd_MenuDelete( VLC_OBJECT(object), osd ) + +/** + * Find OSD Menu button at position x,y + */ +VLC_EXPORT( osd_button_t *, __osd_ButtonFind, ( vlc_object_t *p_this, + int, int, int, int, int, int ) ); + +#define osd_ButtonFind(object,x,y,h,w,sh,sw) __osd_ButtonFind(object,x,y,h,w,sh,sw) + +/** + * Select the button provided as the new active button + */ +VLC_EXPORT( void, __osd_ButtonSelect, ( vlc_object_t *, osd_button_t *) ); + +#define osd_ButtonSelect(object,button) __osd_ButtonSelect(object,button) + +/** + * Show the OSD menu. + * + * Show the OSD menu on the video output or mux it into the stream. + * Every change to the OSD menu will now be visible in the output. An output + * can be a video output window or a stream (\see stream output) + */ +VLC_EXPORT( void, __osd_MenuShow, ( vlc_object_t * ) ); + +/** + * Hide the OSD menu. + * + * Stop showing the OSD menu on the video output or mux it into the stream. + */ +VLC_EXPORT( void, __osd_MenuHide, ( vlc_object_t * ) ); + +/** + * Activate the action of this OSD menu item. + * + * The rc interface command "menu select" triggers the sending of an + * hotkey action to the hotkey interface. The hotkey that belongs to + * the current highlighted OSD menu item will be used. + */ +VLC_EXPORT( void, __osd_MenuActivate, ( vlc_object_t * ) ); + +#define osd_MenuShow(object) __osd_MenuShow( VLC_OBJECT(object) ) +#define osd_MenuHide(object) __osd_MenuHide( VLC_OBJECT(object) ) +#define osd_MenuActivate(object) __osd_MenuActivate( VLC_OBJECT(object) ) + +/** + * Next OSD menu item + * + * Select the next OSD menu item to be highlighted. + * Note: The actual position on screen of the menu item is determined by + * the OSD menu configuration file. + */ +VLC_EXPORT( void, __osd_MenuNext, ( vlc_object_t * ) ); + +/** + * Previous OSD menu item + * + * Select the previous OSD menu item to be highlighted. + * Note: The actual position on screen of the menu item is determined by + * the OSD menu configuration file. + */ +VLC_EXPORT( void, __osd_MenuPrev, ( vlc_object_t * ) ); + +/** + * OSD menu item above + * + * Select the OSD menu item above the current item to be highlighted. + * Note: The actual position on screen of the menu item is determined by + * the OSD menu configuration file. + */ +VLC_EXPORT( void, __osd_MenuUp, ( vlc_object_t * ) ); + +/** + * OSD menu item below + * + * Select the next OSD menu item below the current item to be highlighted. + * Note: The actual position on screen of the menu item is determined by + * the OSD menu configuration file. + */ +VLC_EXPORT( void, __osd_MenuDown, ( vlc_object_t * ) ); + +#define osd_MenuNext(object) __osd_MenuNext( VLC_OBJECT(object) ) +#define osd_MenuPrev(object) __osd_MenuPrev( VLC_OBJECT(object) ) +#define osd_MenuUp(object) __osd_MenuUp( VLC_OBJECT(object) ) +#define osd_MenuDown(object) __osd_MenuDown( VLC_OBJECT(object) ) + +/** + * Display the audio volume bitmap. + * + * Display the correct audio volume bitmap that corresponds to the + * current Audio Volume setting. + */ +VLC_EXPORT( void, __osd_Volume, ( vlc_object_t * ) ); + +#define osd_Volume(object) __osd_Volume( VLC_OBJECT(object) ) + +/** + * Retrieve a non modifyable pointer to the OSD Menu state + * + */ +static inline const osd_menu_state_t *osd_GetMenuState( osd_menu_t *p_osd ) +{ + return( p_osd->p_state ); +} + +/** + * Get the last key press received by the OSD Menu + * + * Returns 0 when no key has been pressed or the value of the key pressed. + */ +static inline bool osd_GetKeyPressed( osd_menu_t *p_osd ) +{ + return( p_osd->p_state->b_update ); +} + +/** + * Set the key pressed to a value. + * + * Assign a new key value to the last key pressed on the OSD Menu. + */ +static inline void osd_SetKeyPressed( vlc_object_t *p_this, int i_value ) +{ + vlc_value_t val; + + val.i_int = i_value; + var_Set( p_this, "key-pressed", val ); +} + +/** + * Update the OSD Menu visibility flag. + * + * true means OSD Menu should be shown. false means OSD Menu + * should not be shown. + */ +static inline void osd_SetMenuVisible( osd_menu_t *p_osd, bool b_value ) +{ + vlc_value_t val; + + val.b_bool = p_osd->p_state->b_menu_visible = b_value; + var_Set( p_osd, "osd-menu-visible", val ); +} + +/** + * Update the OSD Menu update flag + * + * If the OSD Menu should be updated then set the update flag to + * true, else to false. + */ +static inline void osd_SetMenuUpdate( osd_menu_t *p_osd, bool b_value ) +{ + vlc_value_t val; + + val.b_bool = p_osd->p_state->b_update = b_value; + var_Set( p_osd, "osd-menu-update", val ); +} + +/** + * Textual feedback + * + * Functions that provide the textual feedback on the OSD. They are shown + * on hotkey commands. The feedback is also part of the osd_button_t + * object. The types are declared in the include file include/vlc_osd.h + * @see vlc_osd.h + */ +VLC_EXPORT( int, osd_ShowTextRelative, ( spu_t *, int, char *, text_style_t *, int, int, int, mtime_t ) ); +VLC_EXPORT( int, osd_ShowTextAbsolute, ( spu_t *, int, char *, text_style_t *, int, int, int, mtime_t, mtime_t ) ); +VLC_EXPORT( void,osd_Message, ( spu_t *, int, char *, ... ) LIBVLC_FORMAT( 3, 4 ) ); + +/** + * Default feedback images + * + * Functions that provide the default OSD feedback images on hotkey + * commands. These feedback images are also part of the osd_button_t + * object. The types are declared in the include file include/vlc_osd.h + * @see vlc_osd.h + */ +VLC_EXPORT( int, osd_Slider, ( vlc_object_t *, spu_t *, int, int, int, int, int, int, short ) ); +VLC_EXPORT( int, osd_Icon, ( vlc_object_t *, spu_t *, int, int, int, int, int, short ) ); + +/** @} */ + +/********************************************************************** + * Vout text and widget overlays + **********************************************************************/ + +/** + * Show text on the video for some time + * \param p_vout pointer to the vout the text is to be showed on + * \param i_channel Subpicture channel + * \param psz_string The text to be shown + * \param p_style Pointer to a struct with text style info + * \param i_flags flags for alignment and such + * \param i_hmargin horizontal margin in pixels + * \param i_vmargin vertical margin in pixels + * \param i_duration Amount of time the text is to be shown. + */ +VLC_EXPORT( int, vout_ShowTextRelative, ( vout_thread_t *, int, char *, text_style_t *, int, int, int, mtime_t ) ); + +/** + * Show text on the video from a given start date to a given end date + * \param p_vout pointer to the vout the text is to be showed on + * \param i_channel Subpicture channel + * \param psz_string The text to be shown + * \param p_style Pointer to a struct with text style info + * \param i_flags flags for alignment and such + * \param i_hmargin horizontal margin in pixels + * \param i_vmargin vertical margin in pixels + * \param i_start the time when this string is to appear on the video + * \param i_stop the time when this string should stop to be displayed + * if this is 0 the string will be shown untill the next string + * is about to be shown + */ +VLC_EXPORT( int, vout_ShowTextAbsolute, ( vout_thread_t *, int, const char *, text_style_t *, int, int, int, mtime_t, mtime_t ) ); + +/** + * Write an informative message at the default location, + * for the default duration and only if the OSD option is enabled. + * \param p_caller The object that called the function. + * \param i_channel Subpicture channel + * \param psz_format printf style formatting + **/ +VLC_EXPORT( void, __vout_OSDMessage, ( vlc_object_t *, int, const char *, ... ) LIBVLC_FORMAT( 3, 4 ) ); + +/** + * Same as __vlc_OSDMessage() but with automatic casting + */ +#define vout_OSDMessage( obj, chan, ...) \ + __vout_OSDMessage( VLC_OBJECT(obj), chan, __VA_ARGS__ ) + +/** + * Display a slider on the video output. + * \param p_this The object that called the function. + * \param i_channel Subpicture channel + * \param i_postion Current position in the slider + * \param i_type Types are: OSD_HOR_SLIDER and OSD_VERT_SLIDER. + * @see vlc_osd.h + */ +VLC_EXPORT( void, vout_OSDSlider, ( vlc_object_t *, int, int , short ) ); + +/** + * Display an Icon on the video output. + * \param p_this The object that called the function. + * \param i_channel Subpicture channel + * \param i_type Types are: OSD_PLAY_ICON, OSD_PAUSE_ICON, OSD_SPEAKER_ICON, OSD_MUTE_ICON + * @see vlc_osd.h + */ +VLC_EXPORT( void, vout_OSDIcon, ( vlc_object_t *, int, short ) ); + +# ifdef __cplusplus +} +# endif + +#endif /* _VLC_OSD_H */