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102 lines
3.3 KiB
102 lines
3.3 KiB
/*****************************************************************************
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* volume.c
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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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* Pierre d'Herbemont <pdherbemont # videolan.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 <math.h>
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#include <vlc_common.h>
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#include <vlc_plugin.h>
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#include <vlc_meta.h>
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#include <vlc_playlist_legacy.h>
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#include <vlc_aout.h>
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#include "../vlc.h"
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#include "../libs.h"
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/*****************************************************************************
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* Volume related
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*****************************************************************************/
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static int vlclua_volume_set( lua_State *L )
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{
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playlist_t *p_this = vlclua_get_playlist_internal( L );
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int i_volume = luaL_checkinteger( L, 1 );
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if( i_volume < 0 )
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i_volume = 0;
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int i_ret = playlist_VolumeSet( p_this, i_volume/(float)AOUT_VOLUME_DEFAULT );
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return vlclua_push_ret( L, i_ret );
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}
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static int vlclua_volume_get( lua_State *L )
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{
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playlist_t *p_this = vlclua_get_playlist_internal( L );
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long i_volume = lroundf(playlist_VolumeGet( p_this ) * AOUT_VOLUME_DEFAULT);
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lua_pushnumber( L, i_volume );
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return 1;
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}
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static int vlclua_volume_up( lua_State *L )
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{
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playlist_t *p_this = vlclua_get_playlist_internal( L );
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float volume;
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playlist_VolumeUp( p_this, (int)luaL_optinteger( L, 1, 1 ), &volume );
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lua_pushnumber( L, lroundf(volume * AOUT_VOLUME_DEFAULT) );
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return 1;
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}
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static int vlclua_volume_down( lua_State *L )
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{
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playlist_t *p_this = vlclua_get_playlist_internal( L );
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float volume;
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playlist_VolumeDown( p_this, (int)luaL_optinteger( L, 1, 1 ), &volume );
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lua_pushnumber( L, lroundf(volume * AOUT_VOLUME_DEFAULT) );
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return 1;
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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_volume_reg[] = {
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{ "get", vlclua_volume_get },
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{ "set", vlclua_volume_set },
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{ "up", vlclua_volume_up },
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{ "down", vlclua_volume_down },
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{ NULL, NULL }
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};
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void luaopen_volume( lua_State *L )
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{
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lua_newtable( L );
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luaL_register( L, NULL, vlclua_volume_reg );
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lua_setfield( L, -2, "volume" );
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}
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