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
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 *****************************************************************************/
34 #include <vlc_block.h>
36 /*****************************************************************************
38 *****************************************************************************/
39 static int Open ( vlc_object_t * );
40 static void Close ( vlc_object_t * );
42 #define SOUT_CFG_PREFIX "sout-autodel-"
45 set_shortname( _("Autodel"));
46 set_description( _("Automatically add/delete input streams"));
47 set_capability( "sout stream", 50 );
48 add_shortcut( "autodel" );
49 set_callbacks( Open, Close );
53 /*****************************************************************************
55 *****************************************************************************/
56 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
57 static int Del ( sout_stream_t *, sout_stream_id_t * );
58 static int Send ( sout_stream_t *, sout_stream_id_t *, block_t * );
60 struct sout_stream_id_t
68 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 p_sys->p_out = sout_StreamNew( p_stream->p_sout, p_stream->psz_next );
88 msg_Err( p_stream, "cannot create chain" );
95 p_stream->pf_add = Add;
96 p_stream->pf_del = Del;
97 p_stream->pf_send = Send;
99 p_stream->p_sys = p_sys;
101 /* update p_sout->i_out_pace_nocontrol */
102 p_stream->p_sout->i_out_pace_nocontrol++;
107 /*****************************************************************************
109 *****************************************************************************/
110 static void Close( vlc_object_t * p_this )
112 sout_stream_t *p_stream = (sout_stream_t*)p_this;
113 sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
115 sout_StreamDelete( p_sys->p_out );
116 p_stream->p_sout->i_out_pace_nocontrol--;
121 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
123 sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
124 sout_stream_id_t *p_es = malloc( sizeof(sout_stream_id_t) );
129 p_es->b_error = VLC_FALSE;
130 TAB_APPEND( p_sys->i_es_num, p_sys->pp_es, p_es );
135 static int Del( sout_stream_t *p_stream, sout_stream_id_t *p_es )
137 sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
138 sout_stream_id_t *id = p_es->id;
140 TAB_REMOVE( p_sys->i_es_num, p_sys->pp_es, p_es );
144 return p_sys->p_out->pf_del( p_sys->p_out, id );
149 static int Send( sout_stream_t *p_stream, sout_stream_id_t *p_es,
152 sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
153 mtime_t i_current = mdate();
156 p_es->i_last = p_buffer->i_dts;
157 if ( p_es->id == NULL && p_es->b_error != VLC_TRUE )
159 p_es->id = p_sys->p_out->pf_add( p_sys->p_out, &p_es->fmt );
160 if ( p_es->id == NULL )
162 p_es->b_error = VLC_TRUE;
163 msg_Err( p_stream, "couldn't create chain for id %d",
168 if ( p_es->b_error != VLC_TRUE )
169 p_sys->p_out->pf_send( p_sys->p_out, p_es->id, p_buffer );
171 block_ChainRelease( p_buffer );
173 for ( i = 0; i < p_sys->i_es_num; i++ )
175 if ( p_sys->pp_es[i]->id != NULL
176 && (p_sys->pp_es[i]->fmt.i_cat == VIDEO_ES
177 || p_sys->pp_es[i]->fmt.i_cat == AUDIO_ES)
178 && p_sys->pp_es[i]->i_last < i_current )
180 p_sys->p_out->pf_del( p_sys->p_out, p_sys->pp_es[i]->id );
181 p_sys->pp_es[i]->id = NULL;