1 /*****************************************************************************
2 * gather.c: gathering stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 VLC authors and VideoLAN
7 * Authors: Laurent Aimar <fenrir@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>
34 #include <vlc_input.h>
37 /*****************************************************************************
39 *****************************************************************************/
40 static int Open ( vlc_object_t * );
41 static void Close ( vlc_object_t * );
44 set_description( N_("Gathering stream output") )
45 set_capability( "sout stream", 50 )
46 add_shortcut( "gather" )
47 set_callbacks( Open, Close )
50 /*****************************************************************************
52 *****************************************************************************/
53 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
54 static int Del ( sout_stream_t *, sout_stream_id_t * );
55 static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
57 struct sout_stream_id_t
65 struct sout_stream_sys_t
68 sout_stream_id_t **id;
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_stream->p_sys = p_sys = malloc( sizeof( sout_stream_sys_t ) );
83 if( !p_stream->p_next )
88 p_stream->pf_add = Add;
89 p_stream->pf_del = Del;
90 p_stream->pf_send = Send;
92 TAB_INIT( p_sys->i_id, p_sys->id );
97 /*****************************************************************************
99 *****************************************************************************/
100 static void Close( vlc_object_t * p_this )
102 sout_stream_t *p_stream = (sout_stream_t*)p_this;
103 sout_stream_sys_t *p_sys = p_stream->p_sys;
106 for( i = 0; i < p_sys->i_id; i++ )
108 sout_stream_id_t *id = p_sys->id[i];
110 sout_StreamIdDel( p_stream->p_next, id->id );
111 es_format_Clean( &id->fmt );
114 TAB_CLEAN( p_sys->i_id, p_sys->id );
119 /*****************************************************************************
121 *****************************************************************************/
122 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
124 sout_stream_sys_t *p_sys = p_stream->p_sys;
125 sout_stream_id_t *id;
128 /* search a compatible output */
129 for( i = 0; i < p_sys->i_id; i++ )
135 if( id->fmt.i_cat != p_fmt->i_cat || id->fmt.i_codec != p_fmt->i_codec )
138 if( id->fmt.i_cat == AUDIO_ES )
140 audio_format_t *p_a = &id->fmt.audio;
141 if( p_a->i_rate != p_fmt->audio.i_rate ||
142 p_a->i_channels != p_fmt->audio.i_channels ||
143 p_a->i_blockalign != p_fmt->audio.i_blockalign )
146 else if( id->fmt.i_cat == VIDEO_ES )
148 video_format_t *p_v = &id->fmt.video;
149 if( p_v->i_width != p_fmt->video.i_width ||
150 p_v->i_height != p_fmt->video.i_height )
155 msg_Dbg( p_stream, "reusing already opened output" );
160 /* destroy all outputs from the same category */
161 for( i = 0; i < p_sys->i_id; i++ )
164 if( !id->b_used && id->fmt.i_cat == p_fmt->i_cat )
166 TAB_REMOVE( p_sys->i_id, p_sys->id, id );
167 sout_StreamIdDel( p_stream->p_next, id->id );
168 es_format_Clean( &id->fmt );
176 msg_Dbg( p_stream, "creating new output" );
177 id = malloc( sizeof( sout_stream_id_t ) );
180 es_format_Copy( &id->fmt, p_fmt );
182 id->id = sout_StreamIdAdd( p_stream->p_next, &id->fmt );
188 TAB_APPEND( p_sys->i_id, p_sys->id, id );
193 /*****************************************************************************
195 *****************************************************************************/
196 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
198 VLC_UNUSED(p_stream);
203 /*****************************************************************************
205 *****************************************************************************/
206 static int Send( sout_stream_t *p_stream,
207 sout_stream_id_t *id, block_t *p_buffer )
209 return sout_StreamIdSend( p_stream->p_next, id->id, p_buffer );