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 *****************************************************************************/
36 #include <vlc_common.h>
37 #include <vlc_plugin.h>
38 #include <vlc_interface.h>
39 #include <vlc_playlist.h>
42 #include "motionlib.h"
44 /*****************************************************************************
45 * intf_sys_t: description and status of interface
46 *****************************************************************************/
49 motion_sensors_t *p_motion;
53 /*****************************************************************************
55 *****************************************************************************/
56 static int Open ( vlc_object_t * );
57 static void Close ( vlc_object_t * );
59 static void *RunIntf( void * );
61 /*****************************************************************************
63 *****************************************************************************/
65 set_shortname( N_("motion"))
66 set_category( CAT_INTERFACE )
67 set_subcategory( SUBCAT_INTERFACE_CONTROL )
68 set_description( N_("motion control interface") )
69 set_help( N_("Use HDAPS, AMS, APPLESMC or UNIMOTION motion sensors " \
70 "to rotate the video") )
72 add_obsolete_bool( "motion-use-rotate" ) /* since 2.1.0 */
74 set_capability( "interface", 0 )
75 set_callbacks( Open, Close )
78 /*****************************************************************************
79 * OpenIntf: initialise interface
80 *****************************************************************************/
81 int Open ( vlc_object_t *p_this )
83 intf_thread_t *p_intf = (intf_thread_t *)p_this;
84 intf_sys_t *p_sys = malloc( sizeof( *p_sys ) );
85 if( unlikely(p_sys == NULL) )
88 p_sys->p_motion = motion_create( VLC_OBJECT( p_intf ) );
89 if( p_sys->p_motion == NULL )
96 p_intf->p_sys = p_sys;
98 if( vlc_clone( &p_sys->thread, RunIntf, p_intf, VLC_THREAD_PRIORITY_LOW ) )
100 motion_destroy( p_sys->p_motion );
107 /*****************************************************************************
108 * CloseIntf: destroy interface
109 *****************************************************************************/
110 void Close ( vlc_object_t *p_this )
112 intf_thread_t *p_intf = (intf_thread_t *)p_this;
113 intf_sys_t *p_sys = p_intf->p_sys;
115 vlc_cancel( p_sys->thread );
116 vlc_join( p_sys->thread, NULL );
117 motion_destroy( p_sys->p_motion );
121 /*****************************************************************************
123 *****************************************************************************/
124 #define LOW_THRESHOLD 800
125 #define HIGH_THRESHOLD 1000
126 static void *RunIntf( void *data )
128 intf_thread_t *p_intf = data;
133 const char *psz_type;
134 bool b_change = false;
136 /* Wait a bit, get orientation, change filter if necessary */
137 #warning FIXME: check once (or less) per picture, not once per interval
138 msleep( INTF_IDLE_SLEEP );
140 int canc = vlc_savecancel();
141 int i_x = motion_get_angle( p_intf->p_sys->p_motion );
143 if( i_x < -HIGH_THRESHOLD && i_oldx > -LOW_THRESHOLD )
148 else if( ( i_x > -LOW_THRESHOLD && i_oldx < -HIGH_THRESHOLD )
149 || ( i_x < LOW_THRESHOLD && i_oldx > HIGH_THRESHOLD ) )
154 else if( i_x > HIGH_THRESHOLD && i_oldx < LOW_THRESHOLD )
162 #warning FIXME: refactor this plugin as a video filter!
163 input_thread_t *p_input;
165 p_input = playlist_CurrentInput( pl_Get( p_intf ) );
168 vout_thread_t *p_vout;
170 p_vout = input_GetVout( p_input );
173 if( psz_type != NULL )
175 var_Create( p_vout, "transform-type", VLC_VAR_STRING );
176 var_SetString( p_vout, "transform-type", psz_type );
179 var_Destroy( p_vout, "transform-type" );
181 var_SetString( p_vout, "video-filter",
182 psz_type != NULL ? "transform" : "" );
183 vlc_object_release( p_vout );
185 vlc_object_release( p_input );
190 vlc_restorecancel( canc );
195 #undef HIGH_THRESHOLD