1 /*****************************************************************************
2 * idummy.c: dummy input plugin, to manage "vlc://" special options
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 VLC authors and VideoLAN
7 * Authors: Samuel Hocevar <sam@zoy.org>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU Lesser General Public License as published by
11 * the Free Software Foundation; either version 2.1 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with this program; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
34 #include <vlc_interface.h>
35 #include <vlc_demux.h>
36 #include <vlc_charset.h>
38 static int OpenDemux( vlc_object_t * );
39 static void CloseDemux( vlc_object_t * );
42 set_shortname( N_("Dummy") )
43 set_description( N_("Dummy input") )
44 set_capability( "access_demux", 0 )
45 set_callbacks( OpenDemux, CloseDemux )
46 add_shortcut( "dummy", "vlc" )
49 static int DemuxControl( demux_t *, int, va_list );
51 static int DemuxNoOp( demux_t *demux )
57 static int DemuxHold( demux_t *demux )
60 msleep( 10000 ); /* FIXME!!! */
70 static int DemuxPause( demux_t *demux )
72 demux_sys_t *p_sys = demux->p_sys;
73 mtime_t now = mdate();
75 if( now >= p_sys->end )
78 msleep( 10000 ); /* FIXME!!! */
82 static int ControlPause( demux_t *demux, int query, va_list args )
84 demux_sys_t *p_sys = demux->p_sys;
88 case DEMUX_GET_POSITION:
90 double *ppos = va_arg( args, double * );
92 mtime_t now = mdate();
94 pos = 1. + ((double)(now - p_sys->end) / (double)p_sys->length);
95 *ppos = (pos <= 1.) ? pos : 1.;
99 case DEMUX_SET_POSITION:
101 double pos = va_arg( args, double );
102 mtime_t now = mdate();
104 p_sys->end = now + (p_sys->length * (1. - pos));
108 case DEMUX_GET_LENGTH:
110 mtime_t *plen = va_arg( args, mtime_t * );
111 *plen = p_sys->length;
117 mtime_t *ppos = va_arg( args, mtime_t * );
118 *ppos = mdate() + p_sys->length - p_sys->end;
124 mtime_t pos = va_arg( args, mtime_t );
125 p_sys->end = mdate() + p_sys->length - pos;
130 *va_arg( args, bool * ) = true;
134 return DemuxControl( demux, query, args );
139 /*****************************************************************************
140 * OpenDemux: initialize the target, ie. parse the command
141 *****************************************************************************/
142 static int OpenDemux( vlc_object_t *p_this )
144 demux_t *p_demux = (demux_t*)p_this;
145 char * psz_name = p_demux->psz_location;
147 p_demux->p_sys = NULL;
149 /* Check for a "vlc://nop" command */
150 if( !strcasecmp( psz_name, "nop" ) )
153 msg_Info( p_demux, "command `nop'" );
154 p_demux->pf_demux = DemuxNoOp;
155 p_demux->pf_control = DemuxControl;
159 /* Check for a "vlc://quit" command */
160 if( !strcasecmp( psz_name, "quit" ) )
162 msg_Info( p_demux, "command `quit'" );
163 p_demux->pf_demux = DemuxNoOp;
164 p_demux->pf_control = DemuxControl;
165 libvlc_Quit( p_demux->p_libvlc );
169 if( !strcasecmp( psz_name, "pause" ) )
171 msg_Info( p_demux, "command `pause'" );
173 p_demux->pf_demux = DemuxHold;
174 p_demux->pf_control = DemuxControl;
178 /* Check for a "vlc://pause:***" command */
179 if( !strncasecmp( psz_name, "pause:", 6 ) )
181 double f = us_atof( psz_name + 6 );
182 mtime_t length = f * CLOCK_FREQ;
184 msg_Info( p_demux, "command `pause %f'", f );
186 goto nop; /* avoid division by zero */
188 demux_sys_t *p_sys = malloc( sizeof( *p_sys ) );
192 p_sys->end = mdate() + length;
193 p_sys->length = length;
195 p_demux->p_sys = p_sys;
196 p_demux->pf_demux = DemuxPause;
197 p_demux->pf_control = ControlPause;
201 msg_Err( p_demux, "unknown command `%s'", psz_name );
205 /*****************************************************************************
206 * CloseDemux: initialize the target, ie. parse the command
207 *****************************************************************************/
208 static void CloseDemux( vlc_object_t *p_this )
210 demux_t *p_demux = (demux_t*)p_this;
212 free( p_demux->p_sys );
215 static int DemuxControl( demux_t *p_demux, int i_query, va_list args )
217 (void)p_demux; (void)i_query; (void)args;
220 case DEMUX_GET_PTS_DELAY:
222 int64_t *pi_pts_delay = va_arg( args, int64_t * );
223 *pi_pts_delay = DEFAULT_PTS_DELAY;