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 *****************************************************************************/
33 /*****************************************************************************
35 *****************************************************************************/
36 static int Open ( vlc_object_t * );
37 static void Close ( vlc_object_t * );
40 set_description( _("Duplicate stream output") );
41 set_capability( "sout stream", 50 );
42 add_shortcut( "duplicate" );
43 add_shortcut( "dup" );
44 set_category( CAT_SOUT );
45 set_subcategory( SUBCAT_SOUT_STREAM );
46 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 *,
58 struct sout_stream_sys_t
61 sout_stream_t **pp_streams;
67 struct sout_stream_id_t
73 static vlc_bool_t ESSelected( es_format_t *fmt, char *psz_select );
75 /*****************************************************************************
77 *****************************************************************************/
78 static int Open( vlc_object_t *p_this )
80 sout_stream_t *p_stream = (sout_stream_t*)p_this;
81 sout_stream_sys_t *p_sys;
84 msg_Dbg( p_stream, "creating 'duplicate'" );
86 p_sys = malloc( sizeof( sout_stream_sys_t ) );
88 p_sys->i_nb_streams = 0;
89 p_sys->pp_streams = NULL;
90 p_sys->i_nb_select = 0;
91 p_sys->ppsz_select = NULL;
93 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
95 if( !strncmp( p_cfg->psz_name, "dst", strlen( "dst" ) ) )
99 msg_Dbg( p_stream, " * adding `%s'", p_cfg->psz_value );
100 s = sout_StreamNew( p_stream->p_sout, p_cfg->psz_value );
104 TAB_APPEND( p_sys->i_nb_streams, p_sys->pp_streams, s );
105 TAB_APPEND( p_sys->i_nb_select, p_sys->ppsz_select, NULL );
108 else if( !strncmp( p_cfg->psz_name, "select", strlen( "select" ) ) )
110 char *psz = p_cfg->psz_value;
111 if( p_sys->i_nb_select > 0 && psz && *psz )
113 msg_Dbg( p_stream, " * apply selection %s", psz );
114 p_sys->ppsz_select[p_sys->i_nb_select - 1] = strdup( psz );
119 if( p_sys->i_nb_streams == 0 )
121 msg_Err( p_stream, "no destination given" );
127 p_stream->pf_add = Add;
128 p_stream->pf_del = Del;
129 p_stream->pf_send = Send;
131 p_stream->p_sys = p_sys;
136 /*****************************************************************************
138 *****************************************************************************/
139 static void Close( vlc_object_t * p_this )
141 sout_stream_t *p_stream = (sout_stream_t*)p_this;
142 sout_stream_sys_t *p_sys = p_stream->p_sys;
146 msg_Dbg( p_stream, "closing a duplication" );
147 for( i = 0; i < p_sys->i_nb_streams; i++ )
149 sout_StreamDelete( p_sys->pp_streams[i] );
150 if( p_sys->ppsz_select[i] )
152 free( p_sys->ppsz_select[i] );
155 if( p_sys->pp_streams )
157 free( p_sys->pp_streams );
159 if( p_sys->ppsz_select )
161 free( p_sys->ppsz_select );
167 /*****************************************************************************
169 *****************************************************************************/
170 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
172 sout_stream_sys_t *p_sys = p_stream->p_sys;
173 sout_stream_id_t *id;
174 int i_stream, i_valid_streams = 0;
176 id = malloc( sizeof( sout_stream_id_t ) );
180 msg_Dbg( p_stream, "duplicated a new stream codec=%4.4s (es=%d group=%d)",
181 (char*)&p_fmt->i_codec, p_fmt->i_id, p_fmt->i_group );
183 for( i_stream = 0; i_stream < p_sys->i_nb_streams; i_stream++ )
187 if( ESSelected( p_fmt, p_sys->ppsz_select[i_stream] ) )
189 sout_stream_t *out = p_sys->pp_streams[i_stream];
191 id_new = (void*)out->pf_add( out, p_fmt );
194 msg_Dbg( p_stream, " - added for output %d", i_stream );
199 msg_Dbg( p_stream, " - failed for output %d", i_stream );
204 msg_Dbg( p_stream, " - ignored for output %d", i_stream );
207 /* Append failed attempts as well to keep track of which pp_id
208 * belongs to which duplicated stream */
209 TAB_APPEND( id->i_nb_ids, id->pp_ids, id_new );
212 if( i_valid_streams <= 0 )
221 /*****************************************************************************
223 *****************************************************************************/
224 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
226 sout_stream_sys_t *p_sys = p_stream->p_sys;
229 for( i_stream = 0; i_stream < p_sys->i_nb_streams; i_stream++ )
231 if( id->pp_ids[i_stream] )
233 sout_stream_t *out = p_sys->pp_streams[i_stream];
234 out->pf_del( out, id->pp_ids[i_stream] );
243 /*****************************************************************************
245 *****************************************************************************/
246 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
249 sout_stream_sys_t *p_sys = p_stream->p_sys;
250 sout_stream_t *p_dup_stream;
253 /* Loop through the linked list of buffers */
256 block_t *p_next = p_buffer->p_next;
258 p_buffer->p_next = NULL;
260 for( i_stream = 0; i_stream < p_sys->i_nb_streams - 1; i_stream++ )
263 p_dup_stream = p_sys->pp_streams[i_stream];
265 if( id->pp_ids[i_stream] )
267 p_dup = block_Duplicate( p_buffer );
269 p_dup_stream->pf_send( p_dup_stream, id->pp_ids[i_stream],
274 if( i_stream < p_sys->i_nb_streams && id->pp_ids[i_stream] )
276 p_dup_stream = p_sys->pp_streams[i_stream];
277 p_dup_stream->pf_send( p_dup_stream, id->pp_ids[i_stream],
282 block_Release( p_buffer );
290 /*****************************************************************************
292 *****************************************************************************/
293 static vlc_bool_t NumInRange( char *psz_range, int i_num )
295 char *psz = strchr( psz_range, '-' );
301 i_start = strtol( psz_range, &end, 0 );
302 if( end == psz_range ) i_start = i_num;
304 i_stop = strtol( psz, &end, 0 );
305 if( end == psz_range ) i_stop = i_num;
309 i_start = i_stop = strtol( psz_range, NULL, 0 );
312 return i_start <= i_num && i_num <= i_stop ? VLC_TRUE : VLC_FALSE;
315 static vlc_bool_t ESSelected( es_format_t *fmt, char *psz_select )
320 /* We have tree state variable : no tested (-1), failed(0), succeed(1) */
325 /* If empty all es are selected */
326 if( psz_select == NULL || *psz_select == '\0' )
330 psz_dup = strdup( psz_select );
333 /* If non empty, parse the selection:
334 * We have selection[,selection[,..]] where following selection are recognized:
338 * (no(-))es=[start]-[end] or es=num
339 * (no(-))prgm=[start]-[end] or prgm=num (program works too)
340 * if a negative test failed we exit directly
347 while( *psz == ' ' || *psz == '\t' ) psz++;
350 p = strchr( psz, ',' );
362 if( !strncmp( psz, "no-audio", strlen( "no-audio" ) ) ||
363 !strncmp( psz, "noaudio", strlen( "noaudio" ) ) )
367 i_cat = fmt->i_cat != AUDIO_ES ? 1 : 0;
370 else if( !strncmp( psz, "no-video", strlen( "no-video" ) ) ||
371 !strncmp( psz, "novideo", strlen( "novideo" ) ) )
375 i_cat = fmt->i_cat != VIDEO_ES ? 1 : 0;
378 else if( !strncmp( psz, "no-spu", strlen( "no-spu" ) ) ||
379 !strncmp( psz, "nospu", strlen( "nospu" ) ) )
383 i_cat = fmt->i_cat != SPU_ES ? 1 : 0;
386 else if( !strncmp( psz, "audio", strlen( "audio" ) ) )
390 i_cat = fmt->i_cat == AUDIO_ES ? 1 : 0;
393 else if( !strncmp( psz, "video", strlen( "video" ) ) )
397 i_cat = fmt->i_cat == VIDEO_ES ? 1 : 0;
400 else if( !strncmp( psz, "spu", strlen( "spu" ) ) )
404 i_cat = fmt->i_cat == SPU_ES ? 1 : 0;
407 else if( strchr( psz, '=' ) != NULL )
409 char *psz_arg = strchr( psz, '=' );
412 if( !strcmp( psz, "no-es" ) || !strcmp( psz, "noes" ) )
416 i_es = NumInRange( psz_arg, fmt->i_id ) ? 0 : -1;
419 else if( !strcmp( psz, "es" ) )
423 i_es = NumInRange( psz_arg, fmt->i_id) ? 1 : -1;
426 else if( !strcmp( psz, "no-prgm" ) || !strcmp( psz, "noprgm" ) ||
427 !strcmp( psz, "no-program" ) || !strcmp( psz, "noprogram" ) )
429 if( fmt->i_group >= 0 && i_prgm == -1 )
431 i_prgm = NumInRange( psz_arg, fmt->i_group ) ? 0 : -1;
434 else if( !strcmp( psz, "prgm" ) || !strcmp( psz, "program" ) )
436 if( fmt->i_group >= 0 && i_prgm == -1 )
438 i_prgm = NumInRange( psz_arg, fmt->i_group ) ? 1 : -1;
444 fprintf( stderr, "unknown args (%s)\n", psz );
452 if( i_cat == 1 || i_es == 1 || i_prgm == 1 )