1 /*****************************************************************************
2 * autodel.c: monitor mux inputs and automatically add/delete streams
3 *****************************************************************************
4 * Copyright (C) 2006 the VideoLAN team
5 * $Id: autodel.c 12074 2005-08-08 17:18:08Z dionoea $
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 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 General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
30 #include <vlc_block.h>
32 /*****************************************************************************
34 *****************************************************************************/
35 static int Open ( vlc_object_t * );
36 static void Close ( vlc_object_t * );
38 #define SOUT_CFG_PREFIX "sout-autodel-"
41 set_shortname( _("Autodel"));
42 set_description( _("Automatically add/delete input streams"));
43 set_capability( "sout stream", 50 );
44 add_shortcut( "autodel" );
45 set_callbacks( Open, Close );
49 /*****************************************************************************
51 *****************************************************************************/
52 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
53 static int Del ( sout_stream_t *, sout_stream_id_t * );
54 static int Send ( sout_stream_t *, sout_stream_id_t *, block_t * );
56 struct sout_stream_id_t
64 struct sout_stream_sys_t
67 sout_stream_id_t **pp_es;
71 /*****************************************************************************
73 *****************************************************************************/
74 static int Open( vlc_object_t *p_this )
76 sout_stream_t *p_stream = (sout_stream_t*)p_this;
77 sout_stream_sys_t *p_sys;
79 p_sys = malloc( sizeof( sout_stream_sys_t ) );
81 p_sys->p_out = sout_StreamNew( p_stream->p_sout, p_stream->psz_next );
84 msg_Err( p_stream, "cannot create chain" );
91 p_stream->pf_add = Add;
92 p_stream->pf_del = Del;
93 p_stream->pf_send = Send;
95 p_stream->p_sys = p_sys;
97 /* update p_sout->i_out_pace_nocontrol */
98 p_stream->p_sout->i_out_pace_nocontrol++;
103 /*****************************************************************************
105 *****************************************************************************/
106 static void Close( vlc_object_t * p_this )
108 sout_stream_t *p_stream = (sout_stream_t*)p_this;
109 sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
111 sout_StreamDelete( p_sys->p_out );
112 p_stream->p_sout->i_out_pace_nocontrol--;
117 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
119 sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
120 sout_stream_id_t *p_es = malloc( sizeof(sout_stream_id_t) );
125 p_es->b_error = VLC_FALSE;
126 TAB_APPEND( p_sys->i_es_num, p_sys->pp_es, p_es );
131 static int Del( sout_stream_t *p_stream, sout_stream_id_t *p_es )
133 sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
134 sout_stream_id_t *id = p_es->id;
136 TAB_REMOVE( p_sys->i_es_num, p_sys->pp_es, p_es );
140 return p_sys->p_out->pf_del( p_sys->p_out, id );
145 static int Send( sout_stream_t *p_stream, sout_stream_id_t *p_es,
148 sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
149 mtime_t i_current = mdate();
152 p_es->i_last = p_buffer->i_dts;
153 if ( p_es->id == NULL && p_es->b_error != VLC_TRUE )
155 p_es->id = p_sys->p_out->pf_add( p_sys->p_out, &p_es->fmt );
156 if ( p_es->id == NULL )
158 p_es->b_error = VLC_TRUE;
159 msg_Err( p_stream, "couldn't create chain for id %d",
164 if ( p_es->b_error != VLC_TRUE )
165 p_sys->p_out->pf_send( p_sys->p_out, p_es->id, p_buffer );
167 block_ChainRelease( p_buffer );
169 for ( i = 0; i < p_sys->i_es_num; i++ )
171 if ( p_sys->pp_es[i]->id != NULL
172 && (p_sys->pp_es[i]->fmt.i_cat == VIDEO_ES
173 || p_sys->pp_es[i]->fmt.i_cat == AUDIO_ES)
174 && p_sys->pp_es[i]->i_last < i_current )
176 p_sys->p_out->pf_del( p_sys->p_out, p_sys->pp_es[i]->id );
177 p_sys->pp_es[i]->id = NULL;