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205 lines
6.5 KiB
205 lines
6.5 KiB
/*****************************************************************************
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* osd.c: Generic lua interface functions
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*****************************************************************************
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* Copyright (C) 2007-2008 the VideoLAN team
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*
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* Authors: Antoine Cellerier <dionoea at videolan tod org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#ifndef _GNU_SOURCE
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# define _GNU_SOURCE
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#endif
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <vlc_vout.h>
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#include <vlc_vout_osd.h>
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#include <vlc_subpicture.h>
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#include "../vlc.h"
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#include "../libs.h"
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#include "input.h"
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/*****************************************************************************
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* OSD
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*****************************************************************************/
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static int vlc_osd_icon_from_string( const char *psz_name )
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{
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static const struct
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{
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int i_icon;
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const char *psz_name;
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} pp_icons[] =
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{ { OSD_PAUSE_ICON, "pause" },
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{ OSD_PLAY_ICON, "play" },
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{ OSD_SPEAKER_ICON, "speaker" },
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{ OSD_MUTE_ICON, "mute" },
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{ 0, NULL } };
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int i;
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for( i = 0; pp_icons[i].psz_name; i++ )
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{
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if( !strcmp( psz_name, pp_icons[i].psz_name ) )
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return pp_icons[i].i_icon;
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}
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return 0;
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}
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static int vlclua_osd_icon( lua_State *L )
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{
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const char *psz_icon = luaL_checkstring( L, 1 );
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int i_icon = vlc_osd_icon_from_string( psz_icon );
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int i_chan = (int)luaL_optinteger( L, 2, VOUT_SPU_CHANNEL_OSD );
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if( !i_icon )
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return luaL_error( L, "\"%s\" is not a valid osd icon.", psz_icon );
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vout_thread_t *p_vout = vlclua_get_vout_internal(L);
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if( p_vout )
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{
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vout_OSDIcon( p_vout, i_chan, i_icon );
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vout_Release( p_vout );
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}
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return 0;
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}
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static int vlc_osd_position_from_string( const char *psz_name )
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{
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static const struct
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{
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int i_position;
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const char *psz_name;
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} pp_icons[] =
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{ { 0, "center" },
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{ SUBPICTURE_ALIGN_LEFT, "left" },
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{ SUBPICTURE_ALIGN_RIGHT, "right" },
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{ SUBPICTURE_ALIGN_TOP, "top" },
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{ SUBPICTURE_ALIGN_BOTTOM, "bottom" },
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{ SUBPICTURE_ALIGN_TOP |SUBPICTURE_ALIGN_LEFT, "top-left" },
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{ SUBPICTURE_ALIGN_TOP |SUBPICTURE_ALIGN_RIGHT, "top-right" },
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{ SUBPICTURE_ALIGN_BOTTOM|SUBPICTURE_ALIGN_LEFT, "bottom-left" },
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{ SUBPICTURE_ALIGN_BOTTOM|SUBPICTURE_ALIGN_RIGHT, "bottom-right" },
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{ 0, NULL } };
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int i;
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for( i = 0; pp_icons[i].psz_name; i++ )
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{
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if( !strcmp( psz_name, pp_icons[i].psz_name ) )
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return pp_icons[i].i_position;
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}
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return 0;
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}
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static int vlclua_osd_message( lua_State *L )
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{
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const char *psz_message = luaL_checkstring( L, 1 );
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int i_chan = (int)luaL_optinteger( L, 2, VOUT_SPU_CHANNEL_OSD );
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const char *psz_position = luaL_optstring( L, 3, "top-right" );
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vlc_tick_t duration = (vlc_tick_t)luaL_optinteger( L, 4, VLC_TICK_FROM_SEC(1));
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vout_thread_t *p_vout = vlclua_get_vout_internal(L);
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if( p_vout )
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{
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vout_OSDText( p_vout, i_chan, vlc_osd_position_from_string( psz_position ),
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duration, psz_message );
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vout_Release( p_vout );
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}
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return 0;
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}
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static int vlc_osd_slider_type_from_string( const char *psz_name )
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{
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static const struct
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{
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int i_type;
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const char *psz_name;
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} pp_types[] =
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{ { OSD_HOR_SLIDER, "horizontal" },
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{ OSD_VERT_SLIDER, "vertical" },
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{ 0, NULL } };
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int i;
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for( i = 0; pp_types[i].psz_name; i++ )
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{
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if( !strcmp( psz_name, pp_types[i].psz_name ) )
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return pp_types[i].i_type;
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}
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return 0;
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}
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static int vlclua_osd_slider( lua_State *L )
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{
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int i_position = luaL_checkinteger( L, 1 );
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const char *psz_type = luaL_checkstring( L, 2 );
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int i_type = vlc_osd_slider_type_from_string( psz_type );
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int i_chan = (int)luaL_optinteger( L, 3, VOUT_SPU_CHANNEL_OSD );
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if( !i_type )
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return luaL_error( L, "\"%s\" is not a valid slider type.",
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psz_type );
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vout_thread_t *p_vout = vlclua_get_vout_internal(L);
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if( p_vout )
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{
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vout_OSDSlider( p_vout, i_chan, i_position, i_type );
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vout_Release( p_vout );
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}
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return 0;
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}
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static int vlclua_spu_channel_register( lua_State *L )
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{
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vout_thread_t *p_vout = vlclua_get_vout_internal(L);
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if( !p_vout )
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return luaL_error( L, "Unable to find vout." );
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ssize_t i_chan = vout_RegisterSubpictureChannel( p_vout );
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vout_Release( p_vout );
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lua_pushinteger( L, i_chan );
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return 1;
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}
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static int vlclua_spu_channel_clear( lua_State *L )
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{
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ssize_t i_chan = luaL_checkinteger( L, 1 );
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vout_thread_t *p_vout = vlclua_get_vout_internal(L);
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if( !p_vout )
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return luaL_error( L, "Unable to find vout." );
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vout_UnregisterSubpictureChannel( p_vout, i_chan );
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vout_Release(p_vout);
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return 0;
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}
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/*****************************************************************************
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*
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*****************************************************************************/
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static const luaL_Reg vlclua_osd_reg[] = {
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{ "icon", vlclua_osd_icon },
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{ "message", vlclua_osd_message },
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{ "slider", vlclua_osd_slider },
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{ "channel_register", vlclua_spu_channel_register },
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{ "channel_clear", vlclua_spu_channel_clear },
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{ NULL, NULL }
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};
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void luaopen_osd( lua_State *L )
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{
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lua_newtable( L );
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luaL_register( L, NULL, vlclua_osd_reg );
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lua_setfield( L, -2, "osd" );
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}
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