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121 lines
3.9 KiB
121 lines
3.9 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.h>
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#include <vlc_player.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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vlc_playlist_t *playlist = vlclua_get_playlist_internal(L);
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vlc_player_t *player = vlc_playlist_GetPlayer(playlist);
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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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float volume = i_volume / (float) AOUT_VOLUME_DEFAULT;
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int ret = vlc_player_aout_SetVolume(player, volume);
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return vlclua_push_ret(L, 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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vlc_playlist_t *playlist = vlclua_get_playlist_internal(L);
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vlc_player_t *player = vlc_playlist_GetPlayer(playlist);
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float volume = vlc_player_aout_GetVolume(player);
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long i_volume = lroundf(volume * 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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vlc_playlist_t *playlist = vlclua_get_playlist_internal(L);
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vlc_player_t *player = vlc_playlist_GetPlayer(playlist);
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float volume;
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int steps = luaL_optinteger(L, 1, 1);
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int res = vlc_player_aout_IncrementVolume(player, steps, &volume);
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long i_volume = res == VLC_SUCCESS ? lroundf(volume * AOUT_VOLUME_DEFAULT)
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: 0;
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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_down(lua_State *L)
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{
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vlc_playlist_t *playlist = vlclua_get_playlist_internal(L);
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vlc_player_t *player = vlc_playlist_GetPlayer(playlist);
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float volume;
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int steps = luaL_optinteger(L, 1, 1);
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int res = vlc_player_aout_DecrementVolume(player, steps, &volume);
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long i_volume = res == VLC_SUCCESS ? lroundf(volume * AOUT_VOLUME_DEFAULT)
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: 0;
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lua_pushnumber(L, i_volume);
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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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