1 /*****************************************************************************
2 * duplicate.c: duplicate stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 the VideoLAN team
7 * Author: 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 *****************************************************************************/
32 #include <vlc_block.h>
34 /*****************************************************************************
36 *****************************************************************************/
37 static int Open ( vlc_object_t * );
38 static void Close ( vlc_object_t * );
41 set_description( _("Duplicate stream output") );
42 set_capability( "sout stream", 50 );
43 add_shortcut( "duplicate" );
44 add_shortcut( "dup" );
45 set_category( CAT_SOUT );
46 set_subcategory( SUBCAT_SOUT_STREAM );
47 set_callbacks( Open, Close );
51 /*****************************************************************************
53 *****************************************************************************/
54 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
55 static int Del ( sout_stream_t *, sout_stream_id_t * );
56 static int Send( sout_stream_t *, sout_stream_id_t *,
59 struct sout_stream_sys_t
62 sout_stream_t **pp_streams;
68 struct sout_stream_id_t
74 static vlc_bool_t ESSelected( es_format_t *fmt, char *psz_select );
76 /*****************************************************************************
78 *****************************************************************************/
79 static int Open( vlc_object_t *p_this )
81 sout_stream_t *p_stream = (sout_stream_t*)p_this;
82 sout_stream_sys_t *p_sys;
83 config_chain_t *p_cfg;
85 msg_Dbg( p_stream, "creating 'duplicate'" );
87 p_sys = malloc( sizeof( sout_stream_sys_t ) );
89 p_sys->i_nb_streams = 0;
90 p_sys->pp_streams = NULL;
91 p_sys->i_nb_select = 0;
92 p_sys->ppsz_select = NULL;
94 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
96 if( !strncmp( p_cfg->psz_name, "dst", strlen( "dst" ) ) )
100 msg_Dbg( p_stream, " * adding `%s'", p_cfg->psz_value );
101 s = sout_StreamNew( p_stream->p_sout, p_cfg->psz_value );
105 TAB_APPEND( p_sys->i_nb_streams, p_sys->pp_streams, s );
106 TAB_APPEND( p_sys->i_nb_select, p_sys->ppsz_select, NULL );
109 else if( !strncmp( p_cfg->psz_name, "select", strlen( "select" ) ) )
111 char *psz = p_cfg->psz_value;
112 if( p_sys->i_nb_select > 0 && psz && *psz )
114 msg_Dbg( p_stream, " * apply selection %s", psz );
115 p_sys->ppsz_select[p_sys->i_nb_select - 1] = strdup( psz );
120 if( p_sys->i_nb_streams == 0 )
122 msg_Err( p_stream, "no destination given" );
128 p_stream->pf_add = Add;
129 p_stream->pf_del = Del;
130 p_stream->pf_send = Send;
132 p_stream->p_sys = p_sys;
137 /*****************************************************************************
139 *****************************************************************************/
140 static void Close( vlc_object_t * p_this )
142 sout_stream_t *p_stream = (sout_stream_t*)p_this;
143 sout_stream_sys_t *p_sys = p_stream->p_sys;
147 msg_Dbg( p_stream, "closing a duplication" );
148 for( i = 0; i < p_sys->i_nb_streams; i++ )
150 sout_StreamDelete( p_sys->pp_streams[i] );
151 if( p_sys->ppsz_select[i] )
153 free( p_sys->ppsz_select[i] );
156 if( p_sys->pp_streams )
158 free( p_sys->pp_streams );
160 if( p_sys->ppsz_select )
162 free( p_sys->ppsz_select );
168 /*****************************************************************************
170 *****************************************************************************/
171 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
173 sout_stream_sys_t *p_sys = p_stream->p_sys;
174 sout_stream_id_t *id;
175 int i_stream, i_valid_streams = 0;
177 id = malloc( sizeof( sout_stream_id_t ) );
181 msg_Dbg( p_stream, "duplicated a new stream codec=%4.4s (es=%d group=%d)",
182 (char*)&p_fmt->i_codec, p_fmt->i_id, p_fmt->i_group );
184 for( i_stream = 0; i_stream < p_sys->i_nb_streams; i_stream++ )
188 if( ESSelected( p_fmt, p_sys->ppsz_select[i_stream] ) )
190 sout_stream_t *out = p_sys->pp_streams[i_stream];
192 id_new = (void*)out->pf_add( out, p_fmt );
195 msg_Dbg( p_stream, " - added for output %d", i_stream );
200 msg_Dbg( p_stream, " - failed for output %d", i_stream );
205 msg_Dbg( p_stream, " - ignored for output %d", i_stream );
208 /* Append failed attempts as well to keep track of which pp_id
209 * belongs to which duplicated stream */
210 TAB_APPEND( id->i_nb_ids, id->pp_ids, id_new );
213 if( i_valid_streams <= 0 )
222 /*****************************************************************************
224 *****************************************************************************/
225 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
227 sout_stream_sys_t *p_sys = p_stream->p_sys;
230 for( i_stream = 0; i_stream < p_sys->i_nb_streams; i_stream++ )
232 if( id->pp_ids[i_stream] )
234 sout_stream_t *out = p_sys->pp_streams[i_stream];
235 out->pf_del( out, id->pp_ids[i_stream] );
244 /*****************************************************************************
246 *****************************************************************************/
247 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
250 sout_stream_sys_t *p_sys = p_stream->p_sys;
251 sout_stream_t *p_dup_stream;
254 /* Loop through the linked list of buffers */
257 block_t *p_next = p_buffer->p_next;
259 p_buffer->p_next = NULL;
261 for( i_stream = 0; i_stream < p_sys->i_nb_streams - 1; i_stream++ )
264 p_dup_stream = p_sys->pp_streams[i_stream];
266 if( id->pp_ids[i_stream] )
268 p_dup = block_Duplicate( p_buffer );
270 p_dup_stream->pf_send( p_dup_stream, id->pp_ids[i_stream],
275 if( i_stream < p_sys->i_nb_streams && id->pp_ids[i_stream] )
277 p_dup_stream = p_sys->pp_streams[i_stream];
278 p_dup_stream->pf_send( p_dup_stream, id->pp_ids[i_stream],
283 block_Release( p_buffer );
291 /*****************************************************************************
293 *****************************************************************************/
294 static vlc_bool_t NumInRange( char *psz_range, int i_num )
296 char *psz = strchr( psz_range, '-' );
302 i_start = strtol( psz_range, &end, 0 );
303 if( end == psz_range ) i_start = i_num;
305 i_stop = strtol( psz, &end, 0 );
306 if( end == psz_range ) i_stop = i_num;
310 i_start = i_stop = strtol( psz_range, NULL, 0 );
313 return i_start <= i_num && i_num <= i_stop ? VLC_TRUE : VLC_FALSE;
316 static vlc_bool_t ESSelected( es_format_t *fmt, char *psz_select )
321 /* We have tree state variable : no tested (-1), failed(0), succeed(1) */
326 /* If empty all es are selected */
327 if( psz_select == NULL || *psz_select == '\0' )
331 psz_dup = strdup( psz_select );
334 /* If non empty, parse the selection:
335 * We have selection[,selection[,..]] where following selection are recognized:
339 * (no(-))es=[start]-[end] or es=num
340 * (no(-))prgm=[start]-[end] or prgm=num (program works too)
341 * if a negative test failed we exit directly
348 while( *psz == ' ' || *psz == '\t' ) psz++;
351 p = strchr( psz, ',' );
363 if( !strncmp( psz, "no-audio", strlen( "no-audio" ) ) ||
364 !strncmp( psz, "noaudio", strlen( "noaudio" ) ) )
368 i_cat = fmt->i_cat != AUDIO_ES ? 1 : 0;
371 else if( !strncmp( psz, "no-video", strlen( "no-video" ) ) ||
372 !strncmp( psz, "novideo", strlen( "novideo" ) ) )
376 i_cat = fmt->i_cat != VIDEO_ES ? 1 : 0;
379 else if( !strncmp( psz, "no-spu", strlen( "no-spu" ) ) ||
380 !strncmp( psz, "nospu", strlen( "nospu" ) ) )
384 i_cat = fmt->i_cat != SPU_ES ? 1 : 0;
387 else if( !strncmp( psz, "audio", strlen( "audio" ) ) )
391 i_cat = fmt->i_cat == AUDIO_ES ? 1 : 0;
394 else if( !strncmp( psz, "video", strlen( "video" ) ) )
398 i_cat = fmt->i_cat == VIDEO_ES ? 1 : 0;
401 else if( !strncmp( psz, "spu", strlen( "spu" ) ) )
405 i_cat = fmt->i_cat == SPU_ES ? 1 : 0;
408 else if( strchr( psz, '=' ) != NULL )
410 char *psz_arg = strchr( psz, '=' );
413 if( !strcmp( psz, "no-es" ) || !strcmp( psz, "noes" ) )
417 i_es = NumInRange( psz_arg, fmt->i_id ) ? 0 : -1;
420 else if( !strcmp( psz, "es" ) )
424 i_es = NumInRange( psz_arg, fmt->i_id) ? 1 : -1;
427 else if( !strcmp( psz, "no-prgm" ) || !strcmp( psz, "noprgm" ) ||
428 !strcmp( psz, "no-program" ) || !strcmp( psz, "noprogram" ) )
430 if( fmt->i_group >= 0 && i_prgm == -1 )
432 i_prgm = NumInRange( psz_arg, fmt->i_group ) ? 0 : -1;
435 else if( !strcmp( psz, "prgm" ) || !strcmp( psz, "program" ) )
437 if( fmt->i_group >= 0 && i_prgm == -1 )
439 i_prgm = NumInRange( psz_arg, fmt->i_group ) ? 1 : -1;
445 fprintf( stderr, "unknown args (%s)\n", psz );
453 if( i_cat == 1 || i_es == 1 || i_prgm == 1 )