1 /*****************************************************************************
2 * gather.c: gathering stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
29 #include <vlc_input.h>
32 /*****************************************************************************
34 *****************************************************************************/
35 static int Open ( vlc_object_t * );
36 static void Close ( vlc_object_t * );
39 set_description( _("Gathering stream output") );
40 set_capability( "sout stream", 50 );
41 add_shortcut( "gather" );
42 set_callbacks( Open, Close );
45 /*****************************************************************************
47 *****************************************************************************/
48 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
49 static int Del ( sout_stream_t *, sout_stream_id_t * );
50 static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
52 struct sout_stream_id_t
60 struct sout_stream_sys_t
65 sout_stream_id_t **id;
68 /*****************************************************************************
70 *****************************************************************************/
71 static int Open( vlc_object_t *p_this )
73 sout_stream_t *p_stream = (sout_stream_t*)p_this;
74 sout_stream_sys_t *p_sys;
76 p_stream->p_sys = p_sys = malloc( sizeof( sout_stream_sys_t ) );
80 p_sys->p_out = sout_StreamNew( p_stream->p_sout, p_stream->psz_next );
81 if( p_sys->p_out == NULL )
86 p_stream->pf_add = Add;
87 p_stream->pf_del = Del;
88 p_stream->pf_send = Send;
90 TAB_INIT( p_sys->i_id, p_sys->id );
95 /*****************************************************************************
97 *****************************************************************************/
98 static void Close( vlc_object_t * p_this )
100 sout_stream_t *p_stream = (sout_stream_t*)p_this;
101 sout_stream_sys_t *p_sys = p_stream->p_sys;
104 for( i = 0; i < p_sys->i_id; i++ )
106 sout_stream_id_t *id = p_sys->id[i];
108 sout_StreamIdDel( p_sys->p_out, id->id );
109 es_format_Clean( &id->fmt );
112 TAB_CLEAN( p_sys->i_id, p_sys->id );
114 sout_StreamDelete( p_sys->p_out );
118 /*****************************************************************************
120 *****************************************************************************/
121 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
123 sout_stream_sys_t *p_sys = p_stream->p_sys;
124 sout_stream_id_t *id;
127 /* search a compatible output */
128 for( i = 0; i < p_sys->i_id; i++ )
134 if( id->fmt.i_cat != p_fmt->i_cat || id->fmt.i_codec != p_fmt->i_codec )
137 if( id->fmt.i_cat == AUDIO_ES )
139 audio_format_t *p_a = &id->fmt.audio;
140 if( p_a->i_rate != p_fmt->audio.i_rate ||
141 p_a->i_channels != p_fmt->audio.i_channels ||
142 p_a->i_blockalign != p_fmt->audio.i_blockalign )
145 else if( id->fmt.i_cat == VIDEO_ES )
147 video_format_t *p_v = &id->fmt.video;
148 if( p_v->i_width != p_fmt->video.i_width ||
149 p_v->i_height != p_fmt->video.i_height )
154 msg_Dbg( p_stream, "reusing already opened output" );
155 id->b_used = VLC_TRUE;
159 /* destroy all outputs from the same category */
160 for( i = 0; i < p_sys->i_id; i++ )
163 if( !id->b_used && id->fmt.i_cat == p_fmt->i_cat )
165 TAB_REMOVE( p_sys->i_id, p_sys->id, id );
166 sout_StreamIdDel( p_sys->p_out, id->id );
167 es_format_Clean( &id->fmt );
175 msg_Dbg( p_stream, "creating new output" );
176 id = malloc( sizeof( sout_stream_id_t ) );
179 es_format_Copy( &id->fmt, p_fmt );
180 id->b_used = VLC_TRUE;
181 id->id = sout_StreamIdAdd( p_sys->p_out, &id->fmt );
187 TAB_APPEND( p_sys->i_id, p_sys->id, id );
192 /*****************************************************************************
194 *****************************************************************************/
195 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
197 id->b_used = VLC_FALSE;
201 /*****************************************************************************
203 *****************************************************************************/
204 static int Send( sout_stream_t *p_stream,
205 sout_stream_id_t *id, block_t *p_buffer )
207 sout_stream_sys_t *p_sys = p_stream->p_sys;
209 return sout_StreamIdSend( p_sys->p_out, id->id, p_buffer );