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/*****************************************************************************
* idummy.c: dummy input plugin, to manage "vlc://" special options
*****************************************************************************
* Copyright (C) 2001, 2002 VLC authors and VideoLAN
* $Id: c8885955e5d6fa511ad0e3d4275e625ef709b8b3 $
*
* Authors: Samuel Hocevar <sam@zoy.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_interface.h>
#include <vlc_demux.h>
#include <vlc_charset.h>
static int OpenDemux( vlc_object_t * );
static void CloseDemux( vlc_object_t * );
vlc_module_begin ()
set_shortname( N_("Dummy") )
set_description( N_("Dummy input") )
set_capability( "access_demux", 0 )
set_callbacks( OpenDemux, CloseDemux )
add_shortcut( "dummy", "vlc" )
vlc_module_end ()
static int DemuxControl( demux_t *, int, va_list );
static int DemuxNoOp( demux_t *demux )
{
(void) demux;
return 0;
}
static int DemuxHold( demux_t *demux )
{
(void) demux;
msleep( 10000 ); /* FIXME!!! */
return 1;
}
struct demux_sys_t
{
mtime_t end;
mtime_t length;
};
static int DemuxPause( demux_t *demux )
{
demux_sys_t *p_sys = demux->p_sys;
mtime_t now = mdate();
if( now >= p_sys->end )
return 0;
msleep( 10000 ); /* FIXME!!! */
return 1;
}
static int ControlPause( demux_t *demux, int query, va_list args )
{
demux_sys_t *p_sys = demux->p_sys;
switch( query )
{
case DEMUX_GET_POSITION:
{
double *ppos = va_arg( args, double * );
double pos;
mtime_t now = mdate();
pos = 1. + ((double)(now - p_sys->end) / (double)p_sys->length);
*ppos = (pos <= 1.) ? pos : 1.;
break;
}
case DEMUX_SET_POSITION:
{
double pos = va_arg( args, double );
mtime_t now = mdate();
p_sys->end = now + (p_sys->length * (1. - pos));
break;
}
case DEMUX_GET_LENGTH:
{
mtime_t *plen = va_arg( args, mtime_t * );
*plen = p_sys->length;
break;
}
case DEMUX_GET_TIME:
{
mtime_t *ppos = va_arg( args, mtime_t * );
*ppos = mdate() + p_sys->length - p_sys->end;
break;
}
case DEMUX_SET_TIME:
{
mtime_t pos = va_arg( args, mtime_t );
p_sys->end = mdate() + p_sys->length - pos;
break;
}
case DEMUX_CAN_SEEK:
*va_arg( args, bool * ) = true;
break;
default:
return DemuxControl( demux, query, args );
}
return VLC_SUCCESS;
}
/*****************************************************************************
* OpenDemux: initialize the target, ie. parse the command
*****************************************************************************/
static int OpenDemux( vlc_object_t *p_this )
{
demux_t *p_demux = (demux_t*)p_this;
char * psz_name = p_demux->psz_location;
p_demux->p_sys = NULL;
/* Check for a "vlc://nop" command */
if( !strcasecmp( psz_name, "nop" ) )
{
nop:
msg_Info( p_demux, "command `nop'" );
p_demux->pf_demux = DemuxNoOp;
p_demux->pf_control = DemuxControl;
return VLC_SUCCESS;
}
/* Check for a "vlc://quit" command */
if( !strcasecmp( psz_name, "quit" ) )
{
msg_Info( p_demux, "command `quit'" );
p_demux->pf_demux = DemuxNoOp;
p_demux->pf_control = DemuxControl;
libvlc_Quit( p_demux->p_libvlc );
return VLC_SUCCESS;
}
if( !strcasecmp( psz_name, "pause" ) )
{
msg_Info( p_demux, "command `pause'" );
p_demux->pf_demux = DemuxHold;
p_demux->pf_control = DemuxControl;
return VLC_SUCCESS;
}
/* Check for a "vlc://pause:***" command */
if( !strncasecmp( psz_name, "pause:", 6 ) )
{
double f = us_atof( psz_name + 6 );
mtime_t length = f * CLOCK_FREQ;
msg_Info( p_demux, "command `pause %f'", f );
if( length == 0 )
goto nop; /* avoid division by zero */
demux_sys_t *p_sys = malloc( sizeof( *p_sys ) );
if( p_sys == NULL )
return VLC_ENOMEM;
p_sys->end = mdate() + length;
p_sys->length = length;
p_demux->p_sys = p_sys;
p_demux->pf_demux = DemuxPause;
p_demux->pf_control = ControlPause;
return VLC_SUCCESS;
}
msg_Err( p_demux, "unknown command `%s'", psz_name );
return VLC_EGENERIC;
}
/*****************************************************************************
* CloseDemux: initialize the target, ie. parse the command
*****************************************************************************/
static void CloseDemux( vlc_object_t *p_this )
{
demux_t *p_demux = (demux_t*)p_this;
free( p_demux->p_sys );
}
static int DemuxControl( demux_t *p_demux, int i_query, va_list args )
{
(void)p_demux; (void)i_query; (void)args;
switch( i_query )
{
case DEMUX_GET_PTS_DELAY:
{
int64_t *pi_pts_delay = va_arg( args, int64_t * );
*pi_pts_delay = DEFAULT_PTS_DELAY;
return VLC_SUCCESS;
}
default:
return VLC_EGENERIC;
}
}
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