1 /*****************************************************************************
2 * description.c: description stream output module (gathers ES info)
3 *****************************************************************************
4 * Copyright (C) 2003-2004 the VideoLAN team
7 * Authors: Gildas Bazin <gbazin@videolan.org>
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., 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_input.h>
35 #include <vlc_block.h>
40 /*****************************************************************************
42 *****************************************************************************/
43 static int Open ( vlc_object_t * );
44 static void Close ( vlc_object_t * );
46 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
47 static int Del ( sout_stream_t *, sout_stream_id_t * );
48 static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
50 /*****************************************************************************
52 *****************************************************************************/
54 set_description( N_("Description stream output") );
55 set_capability( "sout stream", 50 );
56 add_shortcut( "description" );
57 set_callbacks( Open, Close );
60 struct sout_stream_sys_t
62 input_thread_t *p_input;
64 mtime_t i_stream_start;
67 struct sout_stream_id_t
72 /*****************************************************************************
74 *****************************************************************************/
75 static int Open( vlc_object_t *p_this )
77 sout_stream_t *p_stream = (sout_stream_t*)p_this;
78 sout_stream_sys_t *p_sys;
80 p_stream->pf_add = Add;
81 p_stream->pf_del = Del;
82 p_stream->pf_send = Send;
83 p_sys = p_stream->p_sys = malloc(sizeof(sout_stream_sys_t));
85 p_sys->p_input = NULL;
87 p_sys->i_stream_start = 0;
92 /*****************************************************************************
94 *****************************************************************************/
95 static void Close( vlc_object_t *p_this )
97 sout_stream_t *p_stream = (sout_stream_t *)p_this;
98 sout_stream_sys_t *p_sys = p_stream->p_sys;
100 msg_Dbg( p_this, "Closing" );
105 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
107 sout_stream_sys_t *p_sys = p_stream->p_sys;
108 sout_stream_id_t *id;
109 es_format_t *p_fmt_copy;
110 input_item_t *p_item;
112 msg_Dbg( p_stream, "Adding a stream" );
114 if( !p_sys->p_input )
116 p_sys->p_input = vlc_object_find( p_stream, VLC_OBJECT_INPUT,
118 /* This module is a children of the input object
119 * We don't want to keep a reference on it, because we will be alive
120 * as long as the input is alive.
122 * Since vlc_object_find() increments the reference count,
123 * we release the input just after finding it.
125 assert( p_sys->p_input );
126 vlc_object_release( p_sys->p_input );
129 p_item = input_GetItem(p_sys->p_input);
131 p_fmt_copy = malloc(sizeof(es_format_t));
132 es_format_Copy( p_fmt_copy, p_fmt );
134 vlc_mutex_lock( &p_item->lock );
135 TAB_APPEND( p_item->i_es, p_item->es, p_fmt_copy );
136 vlc_mutex_unlock( &p_item->lock );
138 if( p_sys->i_stream_start <= 0 )
139 p_sys->i_stream_start = mdate();
141 id = malloc( sizeof( sout_stream_id_t ) );
146 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
148 msg_Dbg( p_stream, "Removing a stream" );
154 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
158 sout_stream_sys_t *p_sys = p_stream->p_sys;
160 block_ChainRelease( p_buffer );
162 if( p_sys->p_input && p_sys->i_stream_start + 1500000 < mdate() )
163 p_sys->p_input->b_eof = true;