1 /*****************************************************************************
2 * duplicate.c: duplicate stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 VideoLAN
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., 59 Temple Place - Suite 330, Boston, MA 02111, 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_callbacks( Open, Close );
48 /*****************************************************************************
50 *****************************************************************************/
51 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
52 static int Del ( sout_stream_t *, sout_stream_id_t * );
53 static int Send( sout_stream_t *, sout_stream_id_t *,
56 struct sout_stream_sys_t
59 sout_stream_t **pp_streams;
65 struct sout_stream_id_t
71 static vlc_bool_t ESSelected( es_format_t *fmt, char *psz_select );
73 /*****************************************************************************
75 *****************************************************************************/
76 static int Open( vlc_object_t *p_this )
78 sout_stream_t *p_stream = (sout_stream_t*)p_this;
79 sout_stream_sys_t *p_sys;
82 msg_Dbg( p_stream, "creating 'duplicate'" );
84 p_sys = malloc( sizeof( sout_stream_sys_t ) );
86 p_sys->i_nb_streams = 0;
87 p_sys->pp_streams = NULL;
88 p_sys->i_nb_select = 0;
89 p_sys->ppsz_select = NULL;
91 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
93 if( !strncmp( p_cfg->psz_name, "dst", strlen( "dst" ) ) )
97 msg_Dbg( p_stream, " * adding `%s'", p_cfg->psz_value );
98 s = sout_StreamNew( p_stream->p_sout, p_cfg->psz_value );
102 TAB_APPEND( p_sys->i_nb_streams, p_sys->pp_streams, s );
103 TAB_APPEND( p_sys->i_nb_select, p_sys->ppsz_select, NULL );
106 else if( !strncmp( p_cfg->psz_name, "select", strlen( "select" ) ) )
108 char *psz = p_cfg->psz_value;
109 if( p_sys->i_nb_select > 0 && psz && *psz )
111 msg_Dbg( p_stream, " * apply selection %s", psz );
112 p_sys->ppsz_select[p_sys->i_nb_select - 1] = strdup( psz );
117 if( p_sys->i_nb_streams == 0 )
119 msg_Err( p_stream, "no destination given" );
125 p_stream->pf_add = Add;
126 p_stream->pf_del = Del;
127 p_stream->pf_send = Send;
129 p_stream->p_sys = p_sys;
134 /*****************************************************************************
136 *****************************************************************************/
137 static void Close( vlc_object_t * p_this )
139 sout_stream_t *p_stream = (sout_stream_t*)p_this;
140 sout_stream_sys_t *p_sys = p_stream->p_sys;
144 msg_Dbg( p_stream, "closing a duplication" );
145 for( i = 0; i < p_sys->i_nb_streams; i++ )
147 sout_StreamDelete( p_sys->pp_streams[i] );
148 if( p_sys->ppsz_select[i] )
150 free( p_sys->ppsz_select[i] );
153 if( p_sys->pp_streams )
155 free( p_sys->pp_streams );
157 if( p_sys->ppsz_select )
159 free( p_sys->ppsz_select );
165 /*****************************************************************************
167 *****************************************************************************/
168 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
170 sout_stream_sys_t *p_sys = p_stream->p_sys;
171 sout_stream_id_t *id;
172 int i_stream, i_valid_streams = 0;
174 id = malloc( sizeof( sout_stream_id_t ) );
178 msg_Dbg( p_stream, "duplicated a new stream codec=%4.4s (es=%d group=%d)",
179 (char*)&p_fmt->i_codec, p_fmt->i_id, p_fmt->i_group );
181 for( i_stream = 0; i_stream < p_sys->i_nb_streams; i_stream++ )
185 if( ESSelected( p_fmt, p_sys->ppsz_select[i_stream] ) )
187 sout_stream_t *out = p_sys->pp_streams[i_stream];
189 id_new = (void*)out->pf_add( out, p_fmt );
192 msg_Dbg( p_stream, " - added for output %d", i_stream );
197 msg_Dbg( p_stream, " - failed for output %d", i_stream );
202 msg_Dbg( p_stream, " - ignored for output %d", i_stream );
205 /* Append failed attempts as well to keep track of which pp_id
206 * belongs to which duplicated stream */
207 TAB_APPEND( id->i_nb_ids, id->pp_ids, id_new );
210 if( i_valid_streams <= 0 )
219 /*****************************************************************************
221 *****************************************************************************/
222 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
224 sout_stream_sys_t *p_sys = p_stream->p_sys;
227 for( i_stream = 0; i_stream < p_sys->i_nb_streams; i_stream++ )
229 if( id->pp_ids[i_stream] )
231 sout_stream_t *out = p_sys->pp_streams[i_stream];
232 out->pf_del( out, id->pp_ids[i_stream] );
241 /*****************************************************************************
243 *****************************************************************************/
244 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
247 sout_stream_sys_t *p_sys = p_stream->p_sys;
248 sout_stream_t *p_dup_stream;
251 /* Loop through the linked list of buffers */
254 block_t *p_next = p_buffer->p_next;
256 p_buffer->p_next = NULL;
258 for( i_stream = 0; i_stream < p_sys->i_nb_streams - 1; i_stream++ )
261 p_dup_stream = p_sys->pp_streams[i_stream];
263 if( id->pp_ids[i_stream] )
265 p_dup = block_Duplicate( p_buffer );
267 p_dup_stream->pf_send( p_dup_stream, id->pp_ids[i_stream],
272 if( i_stream < p_sys->i_nb_streams && id->pp_ids[i_stream] )
274 p_dup_stream = p_sys->pp_streams[i_stream];
275 p_dup_stream->pf_send( p_dup_stream, id->pp_ids[i_stream],
280 block_Release( p_buffer );
288 /*****************************************************************************
290 *****************************************************************************/
291 static vlc_bool_t NumInRange( char *psz_range, int i_num )
293 char *psz = strchr( psz_range, '-' );
299 i_start = strtol( psz_range, &end, 0 );
300 if( end == psz_range ) i_start = i_num;
302 i_stop = strtol( psz, &end, 0 );
303 if( end == psz_range ) i_stop = i_num;
307 i_start = i_stop = strtol( psz_range, NULL, 0 );
310 return i_start <= i_num && i_num <= i_stop ? VLC_TRUE : VLC_FALSE;
313 static vlc_bool_t ESSelected( es_format_t *fmt, char *psz_select )
318 /* We have tree state variable : no tested (-1), failed(0), succeed(1) */
323 /* If empty all es are selected */
324 if( psz_select == NULL || *psz_select == '\0' )
328 psz_dup = strdup( psz_select );
331 /* If non empty, parse the selection:
332 * We have selection[,selection[,..]] where following selection are recognized:
336 * (no(-))es=[start]-[end] or es=num
337 * (no(-))prgm=[start]-[end] or prgm=num (program works too)
338 * if a negative test failed we exit directly
345 while( *psz == ' ' || *psz == '\t' ) psz++;
348 p = strchr( psz, ',' );
360 if( !strncmp( psz, "no-audio", strlen( "no-audio" ) ) ||
361 !strncmp( psz, "noaudio", strlen( "noaudio" ) ) )
365 i_cat = fmt->i_cat != AUDIO_ES ? 1 : 0;
368 else if( !strncmp( psz, "no-video", strlen( "no-video" ) ) ||
369 !strncmp( psz, "novideo", strlen( "novideo" ) ) )
373 i_cat = fmt->i_cat != VIDEO_ES ? 1 : 0;
376 else if( !strncmp( psz, "no-spu", strlen( "no-spu" ) ) ||
377 !strncmp( psz, "nospu", strlen( "nospu" ) ) )
381 i_cat = fmt->i_cat != SPU_ES ? 1 : 0;
384 else if( !strncmp( psz, "audio", strlen( "audio" ) ) )
388 i_cat = fmt->i_cat == AUDIO_ES ? 1 : 0;
391 else if( !strncmp( psz, "video", strlen( "video" ) ) )
395 i_cat = fmt->i_cat == VIDEO_ES ? 1 : 0;
398 else if( !strncmp( psz, "spu", strlen( "spu" ) ) )
402 i_cat = fmt->i_cat == SPU_ES ? 1 : 0;
405 else if( strchr( psz, '=' ) != NULL )
407 char *psz_arg = strchr( psz, '=' );
410 if( !strcmp( psz, "no-es" ) || !strcmp( psz, "noes" ) )
414 i_es = !NumInRange( psz_arg, fmt->i_id ) ? 1 : 0;
417 else if( !strcmp( psz, "es" ) )
421 i_es = NumInRange( psz_arg, fmt->i_id) ? 1 : 0;
424 else if( !strcmp( psz, "no-prgm" ) || !strcmp( psz, "noprgm" ) ||
425 !strcmp( psz, "no-program" ) || !strcmp( psz, "noprogram" ) )
427 if( fmt->i_group >= 0 && i_prgm != 1 )
429 i_prgm = !NumInRange( psz_arg, fmt->i_group ) ? 1 : 0;
432 else if( !strcmp( psz, "prgm" ) || !strcmp( psz, "program" ) )
434 if( fmt->i_group >= 0 && i_prgm != 1 )
436 i_prgm = NumInRange( psz_arg, fmt->i_group ) ? 1 : 0;
442 fprintf( stderr, "unknown args (%s)\n", psz );
450 if( i_cat == 0 || i_es == 0 || i_prgm == 0 )
452 /* One test failed */