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 *****************************************************************************/
33 #include <vlc_input.h>
34 #include <vlc_block.h>
37 /*****************************************************************************
39 *****************************************************************************/
40 static int Open ( vlc_object_t * );
41 static void Close ( vlc_object_t * );
43 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
44 static int Del ( sout_stream_t *, sout_stream_id_t * );
45 static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
47 /*****************************************************************************
49 *****************************************************************************/
51 set_description( _("Description stream output") );
52 set_capability( "sout stream", 50 );
53 add_shortcut( "description" );
54 set_callbacks( Open, Close );
57 struct sout_stream_sys_t
60 input_thread_t *p_input;
62 mtime_t i_stream_start;
65 struct sout_stream_id_t
70 /*****************************************************************************
72 *****************************************************************************/
73 static int Open( vlc_object_t *p_this )
75 sout_stream_t *p_stream = (sout_stream_t*)p_this;
76 sout_stream_sys_t *p_sys;
78 p_stream->pf_add = Add;
79 p_stream->pf_del = Del;
80 p_stream->pf_send = Send;
81 p_sys = p_stream->p_sys = malloc(sizeof(sout_stream_sys_t));
84 p_sys->p_input = NULL;
86 p_sys->i_stream_start = 0;
91 /*****************************************************************************
93 *****************************************************************************/
94 static void Close( vlc_object_t *p_this )
96 sout_stream_t *p_stream = (sout_stream_t *)p_this;
97 sout_stream_sys_t *p_sys = p_stream->p_sys;
99 /* It can happen only if buggy */
101 vlc_object_release( p_sys->p_input );
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 if( !p_sys->p_input )
113 p_sys->p_input = vlc_object_find( p_stream, VLC_OBJECT_INPUT, FIND_PARENT );
114 if( !p_sys->p_input )
117 p_item = input_GetItem(p_sys->p_input);
119 p_fmt_copy = malloc(sizeof(es_format_t));
120 es_format_Copy( p_fmt_copy, p_fmt );
122 vlc_mutex_lock( &p_item->lock );
123 TAB_APPEND( p_item->i_es, p_item->es, p_fmt_copy );
124 vlc_mutex_unlock( &p_item->lock );
127 if( p_sys->i_stream_start <= 0 )
128 p_sys->i_stream_start = mdate();
130 id = malloc( sizeof( sout_stream_id_t ) );
135 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
137 sout_stream_sys_t *p_sys = p_stream->p_sys;
140 if( p_sys->i_id <= 0 )
142 vlc_object_release( p_sys->p_input );
143 p_sys->p_input = NULL;
150 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
154 sout_stream_sys_t *p_sys = p_stream->p_sys;
156 block_ChainRelease( p_buffer );
158 if( p_sys->p_input && p_sys->i_stream_start + 1500000 < mdate() )
159 p_sys->p_input->b_eof = VLC_TRUE;