/***************************************************************************** * osd.c: Generic lua interface functions ***************************************************************************** * Copyright (C) 2007-2008 the VideoLAN team * $Id$ * * Authors: Antoine Cellerier * * 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. *****************************************************************************/ /***************************************************************************** * Preamble *****************************************************************************/ #ifndef _GNU_SOURCE # define _GNU_SOURCE #endif #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include "../vlc.h" #include "../libs.h" #include "input.h" /***************************************************************************** * OSD *****************************************************************************/ static int vlc_osd_icon_from_string( const char *psz_name ) { static const struct { int i_icon; const char *psz_name; } pp_icons[] = { { OSD_PAUSE_ICON, "pause" }, { OSD_PLAY_ICON, "play" }, { OSD_SPEAKER_ICON, "speaker" }, { OSD_MUTE_ICON, "mute" }, { 0, NULL } }; int i; for( i = 0; pp_icons[i].psz_name; i++ ) { if( !strcmp( psz_name, pp_icons[i].psz_name ) ) return pp_icons[i].i_icon; } return 0; } static int vlclua_osd_icon( lua_State *L ) { const char *psz_icon = luaL_checkstring( L, 1 ); int i_icon = vlc_osd_icon_from_string( psz_icon ); int i_chan = (int)luaL_optinteger( L, 2, VOUT_SPU_CHANNEL_OSD ); if( !i_icon ) return luaL_error( L, "\"%s\" is not a valid osd icon.", psz_icon ); input_thread_t *p_input = vlclua_get_input_internal( L ); if( p_input ) { vout_thread_t *p_vout = input_GetVout( p_input ); if( p_vout ) { vout_OSDIcon( p_vout, i_chan, i_icon ); vlc_object_release( p_vout ); } vlc_object_release( p_input ); } return 0; } static int vlc_osd_position_from_string( const char *psz_name ) { static const struct { int i_position; const char *psz_name; } pp_icons[] = { { 0, "center" }, { SUBPICTURE_ALIGN_LEFT, "left" }, { SUBPICTURE_ALIGN_RIGHT, "right" }, { SUBPICTURE_ALIGN_TOP, "top" }, { SUBPICTURE_ALIGN_BOTTOM, "bottom" }, { SUBPICTURE_ALIGN_TOP |SUBPICTURE_ALIGN_LEFT, "top-left" }, { SUBPICTURE_ALIGN_TOP |SUBPICTURE_ALIGN_RIGHT, "top-right" }, { SUBPICTURE_ALIGN_BOTTOM|SUBPICTURE_ALIGN_LEFT, "bottom-left" }, { SUBPICTURE_ALIGN_BOTTOM|SUBPICTURE_ALIGN_RIGHT, "bottom-right" }, { 0, NULL } }; int i; for( i = 0; pp_icons[i].psz_name; i++ ) { if( !strcmp( psz_name, pp_icons[i].psz_name ) ) return pp_icons[i].i_position; } return 0; } static int vlclua_osd_message( lua_State *L ) { const char *psz_message = luaL_checkstring( L, 1 ); int i_chan = (int)luaL_optinteger( L, 2, VOUT_SPU_CHANNEL_OSD ); const char *psz_position = luaL_optstring( L, 3, "top-right" ); vlc_tick_t duration = (vlc_tick_t)luaL_optinteger( L, 4, 1000000 ); input_thread_t *p_input = vlclua_get_input_internal( L ); if( p_input ) { vout_thread_t *p_vout = input_GetVout( p_input ); if( p_vout ) { vout_OSDText( p_vout, i_chan, vlc_osd_position_from_string( psz_position ), duration, psz_message ); vlc_object_release( p_vout ); } vlc_object_release( p_input ); } return 0; } static int vlc_osd_slider_type_from_string( const char *psz_name ) { static const struct { int i_type; const char *psz_name; } pp_types[] = { { OSD_HOR_SLIDER, "horizontal" }, { OSD_VERT_SLIDER, "vertical" }, { 0, NULL } }; int i; for( i = 0; pp_types[i].psz_name; i++ ) { if( !strcmp( psz_name, pp_types[i].psz_name ) ) return pp_types[i].i_type; } return 0; } static int vlclua_osd_slider( lua_State *L ) { int i_position = luaL_checkint( L, 1 ); const char *psz_type = luaL_checkstring( L, 2 ); int i_type = vlc_osd_slider_type_from_string( psz_type ); int i_chan = (int)luaL_optinteger( L, 3, VOUT_SPU_CHANNEL_OSD ); if( !i_type ) return luaL_error( L, "\"%s\" is not a valid slider type.", psz_type ); input_thread_t *p_input = vlclua_get_input_internal( L ); if( p_input ) { vout_thread_t *p_vout = input_GetVout( p_input ); if( p_vout ) { vout_OSDSlider( p_vout, i_chan, i_position, i_type ); vlc_object_release( p_vout ); } vlc_object_release( p_input ); } return 0; } static int vlclua_spu_channel_register( lua_State *L ) { input_thread_t *p_input = vlclua_get_input_internal( L ); if( !p_input ) return luaL_error( L, "Unable to find input." ); vout_thread_t *p_vout = input_GetVout( p_input ); if( !p_vout ) { vlc_object_release( p_input ); return luaL_error( L, "Unable to find vout." ); } int i_chan = vout_RegisterSubpictureChannel( p_vout ); vlc_object_release( p_vout ); vlc_object_release( p_input ); lua_pushinteger( L, i_chan ); return 1; } static int vlclua_spu_channel_clear( lua_State *L ) { int i_chan = luaL_checkint( L, 1 ); input_thread_t *p_input = vlclua_get_input_internal( L ); if( !p_input ) return luaL_error( L, "Unable to find input." ); vout_thread_t *p_vout = input_GetVout( p_input ); if( !p_vout ) { vlc_object_release( p_input ); return luaL_error( L, "Unable to find vout." ); } vout_FlushSubpictureChannel( p_vout, i_chan ); vlc_object_release( p_vout ); vlc_object_release( p_input ); return 0; } /***************************************************************************** * *****************************************************************************/ static const luaL_Reg vlclua_osd_reg[] = { { "icon", vlclua_osd_icon }, { "message", vlclua_osd_message }, { "slider", vlclua_osd_slider }, { "channel_register", vlclua_spu_channel_register }, { "channel_clear", vlclua_spu_channel_clear }, { NULL, NULL } }; void luaopen_osd( lua_State *L ) { lua_newtable( L ); luaL_register( L, NULL, vlclua_osd_reg ); lua_setfield( L, -2, "osd" ); }