1 /*****************************************************************************
2 * motion.c: control VLC with laptop built-in motion sensors
3 *****************************************************************************
4 * Copyright (C) 2006 - 2007 the VideoLAN team
7 * Author: Sam Hocevar <sam@zoy.org>
8 * Jérôme Decoodt <djc@videolan.org> (unimotion integration)
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
35 #include <vlc_common.h>
36 #include <vlc_plugin.h>
37 #include <vlc_interface.h>
38 #include <vlc_playlist.h>
41 #include "motionlib.h"
43 /*****************************************************************************
44 * intf_sys_t: description and status of interface
45 *****************************************************************************/
48 motion_sensors_t *p_motion;
51 /*****************************************************************************
53 *****************************************************************************/
54 static int Open ( vlc_object_t * );
55 static void Close ( vlc_object_t * );
57 static void RunIntf( intf_thread_t *p_intf );
59 /*****************************************************************************
61 *****************************************************************************/
63 set_shortname( N_("motion"))
64 set_category( CAT_INTERFACE )
65 set_subcategory( SUBCAT_INTERFACE_CONTROL )
66 set_description( N_("motion control interface") )
67 set_help( N_("Use HDAPS, AMS, APPLESMC or UNIMOTION motion sensors " \
68 "to rotate the video") )
70 add_obsolete_bool( "motion-use-rotate" ) /* since 2.1.0 */
72 set_capability( "interface", 0 )
73 set_callbacks( Open, Close )
76 /*****************************************************************************
77 * OpenIntf: initialise interface
78 *****************************************************************************/
79 int Open ( vlc_object_t *p_this )
81 intf_thread_t *p_intf = (intf_thread_t *)p_this;
83 p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
84 if( p_intf->p_sys == NULL )
89 p_intf->p_sys->p_motion = motion_create( VLC_OBJECT( p_intf ) );
90 if( p_intf->p_sys->p_motion == NULL )
92 free( p_intf->p_sys );
96 p_intf->pf_run = RunIntf;
101 /*****************************************************************************
102 * CloseIntf: destroy interface
103 *****************************************************************************/
104 void Close ( vlc_object_t *p_this )
106 intf_thread_t *p_intf = (intf_thread_t *)p_this;
108 motion_destroy( p_intf->p_sys->p_motion );
109 free( p_intf->p_sys );
112 /*****************************************************************************
114 *****************************************************************************/
115 #define LOW_THRESHOLD 800
116 #define HIGH_THRESHOLD 1000
117 static void RunIntf( intf_thread_t *p_intf )
123 const char *psz_type;
124 bool b_change = false;
126 /* Wait a bit, get orientation, change filter if necessary */
127 #warning FIXME: check once (or less) per picture, not once per interval
128 msleep( INTF_IDLE_SLEEP );
130 int canc = vlc_savecancel();
131 int i_x = motion_get_angle( p_intf->p_sys->p_motion );
133 if( i_x < -HIGH_THRESHOLD && i_oldx > -LOW_THRESHOLD )
138 else if( ( i_x > -LOW_THRESHOLD && i_oldx < -HIGH_THRESHOLD )
139 || ( i_x < LOW_THRESHOLD && i_oldx > HIGH_THRESHOLD ) )
144 else if( i_x > HIGH_THRESHOLD && i_oldx < LOW_THRESHOLD )
152 #warning FIXME: refactor this plugin as a video filter!
153 input_thread_t *p_input;
155 p_input = playlist_CurrentInput( pl_Get( p_intf ) );
158 vout_thread_t *p_vout;
160 p_vout = input_GetVout( p_input );
163 if( psz_type != NULL )
165 var_Create( p_vout, "transform-type", VLC_VAR_STRING );
166 var_SetString( p_vout, "transform-type", psz_type );
169 var_Destroy( p_vout, "transform-type" );
171 var_SetString( p_vout, "video-filter",
172 psz_type != NULL ? "transform" : "" );
173 vlc_object_release( p_vout );
175 vlc_object_release( p_input );
180 vlc_restorecancel( canc );
184 #undef HIGH_THRESHOLD