1 /*****************************************************************************
2 * autodel.c: monitor mux inputs and automatically add/delete streams
3 *****************************************************************************
4 * Copyright (C) 2006 the VideoLAN team
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
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>
35 #include <vlc_block.h>
37 /*****************************************************************************
39 *****************************************************************************/
40 static int Open ( vlc_object_t * );
41 static void Close ( vlc_object_t * );
43 #define SOUT_CFG_PREFIX "sout-autodel-"
46 set_shortname( N_("Autodel"))
47 set_description( N_("Automatically add/delete input streams"))
48 set_capability( "sout stream", 50 )
49 add_shortcut( "autodel" )
50 set_callbacks( Open, Close )
54 /*****************************************************************************
56 *****************************************************************************/
57 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
58 static int Del ( sout_stream_t *, sout_stream_id_t * );
59 static int Send ( sout_stream_t *, sout_stream_id_t *, block_t * );
61 struct sout_stream_id_t
69 struct sout_stream_sys_t
71 sout_stream_id_t **pp_es;
75 /*****************************************************************************
77 *****************************************************************************/
78 static int Open( vlc_object_t *p_this )
80 sout_stream_t *p_stream = (sout_stream_t*)p_this;
81 sout_stream_sys_t *p_sys;
83 p_sys = malloc( sizeof( sout_stream_sys_t ) );
85 if( !p_stream->p_next )
87 msg_Err( p_stream, "cannot create chain" );
94 p_stream->pf_add = Add;
95 p_stream->pf_del = Del;
96 p_stream->pf_send = Send;
98 p_stream->p_sys = p_sys;
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;
114 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
116 sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
117 sout_stream_id_t *p_es = malloc( sizeof(sout_stream_id_t) );
121 p_es->i_last = VLC_TS_INVALID;
122 p_es->b_error = false;
123 TAB_APPEND( p_sys->i_es_num, p_sys->pp_es, p_es );
128 static int Del( sout_stream_t *p_stream, sout_stream_id_t *p_es )
130 sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
131 sout_stream_id_t *id = p_es->id;
133 TAB_REMOVE( p_sys->i_es_num, p_sys->pp_es, p_es );
137 return p_stream->p_next->pf_del( p_stream->p_next, id );
142 static int Send( sout_stream_t *p_stream, sout_stream_id_t *p_es,
145 sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
146 mtime_t i_current = mdate();
149 p_es->i_last = p_buffer->i_dts;
150 if ( !p_es->id && !p_es->b_error )
152 p_es->id = p_stream->p_next->pf_add( p_stream->p_next, &p_es->fmt );
153 if ( p_es->id == NULL )
155 p_es->b_error = true;
156 msg_Err( p_stream, "couldn't create chain for id %d",
161 if ( !p_es->b_error )
162 p_stream->p_next->pf_send( p_stream->p_next, p_es->id, p_buffer );
164 block_ChainRelease( p_buffer );
166 for ( i = 0; i < p_sys->i_es_num; i++ )
168 if ( p_sys->pp_es[i]->id != NULL
169 && (p_sys->pp_es[i]->fmt.i_cat == VIDEO_ES
170 || p_sys->pp_es[i]->fmt.i_cat == AUDIO_ES)
171 && p_sys->pp_es[i]->i_last < i_current )
173 p_stream->p_next->pf_del( p_stream->p_next, p_sys->pp_es[i]->id );
174 p_sys->pp_es[i]->id = NULL;