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_common.h>
33 #include <vlc_plugin.h>
35 #include <vlc_block.h>
37 /*****************************************************************************
39 *****************************************************************************/
40 static int Open ( vlc_object_t * );
41 static void Close ( vlc_object_t * );
44 set_description( N_("Duplicate stream output") )
45 set_capability( "sout stream", 50 )
46 add_shortcut( "duplicate" )
48 set_category( CAT_SOUT )
49 set_subcategory( SUBCAT_SOUT_STREAM )
50 set_callbacks( Open, Close )
54 /*****************************************************************************
56 *****************************************************************************/
57 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
58 static int Del ( sout_stream_t *, sout_stream_id_t * );
59 static int Send( sout_stream_t *, sout_stream_id_t *,
62 struct sout_stream_sys_t
65 sout_stream_t **pp_streams;
67 int i_nb_last_streams;
68 sout_stream_t **pp_last_streams;
74 struct sout_stream_id_t
80 static bool ESSelected( es_format_t *fmt, char *psz_select );
82 /*****************************************************************************
84 *****************************************************************************/
85 static int Open( vlc_object_t *p_this )
87 sout_stream_t *p_stream = (sout_stream_t*)p_this;
88 sout_stream_sys_t *p_sys;
89 config_chain_t *p_cfg;
91 msg_Dbg( p_stream, "creating 'duplicate'" );
93 p_sys = malloc( sizeof( sout_stream_sys_t ) );
97 TAB_INIT( p_sys->i_nb_streams, p_sys->pp_streams );
98 TAB_INIT( p_sys->i_nb_last_streams, p_sys->pp_last_streams );
99 TAB_INIT( p_sys->i_nb_select, p_sys->ppsz_select );
101 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
103 if( !strncmp( p_cfg->psz_name, "dst", strlen( "dst" ) ) )
105 sout_stream_t *s, *p_last;
107 msg_Dbg( p_stream, " * adding `%s'", p_cfg->psz_value );
108 s = sout_StreamChainNew( p_stream->p_sout, p_cfg->psz_value,
109 p_stream->p_next, &p_last );
113 TAB_APPEND( p_sys->i_nb_streams, p_sys->pp_streams, s );
114 TAB_APPEND( p_sys->i_nb_last_streams, p_sys->pp_last_streams,
116 TAB_APPEND( p_sys->i_nb_select, p_sys->ppsz_select, NULL );
119 else if( !strncmp( p_cfg->psz_name, "select", strlen( "select" ) ) )
121 char *psz = p_cfg->psz_value;
122 if( p_sys->i_nb_select > 0 && psz && *psz )
124 char **ppsz_select = &p_sys->ppsz_select[p_sys->i_nb_select - 1];
128 msg_Err( p_stream, " * ignore selection `%s' (it already has `%s')",
133 msg_Dbg( p_stream, " * apply selection `%s'", psz );
134 *ppsz_select = strdup( psz );
140 msg_Err( p_stream, " * ignore unknown option `%s'", p_cfg->psz_name );
144 if( p_sys->i_nb_streams == 0 )
146 msg_Err( p_stream, "no destination given" );
152 p_stream->pf_add = Add;
153 p_stream->pf_del = Del;
154 p_stream->pf_send = Send;
156 p_stream->p_sys = p_sys;
161 /*****************************************************************************
163 *****************************************************************************/
164 static void Close( vlc_object_t * p_this )
166 sout_stream_t *p_stream = (sout_stream_t*)p_this;
167 sout_stream_sys_t *p_sys = p_stream->p_sys;
171 msg_Dbg( p_stream, "closing a duplication" );
172 for( i = 0; i < p_sys->i_nb_streams; i++ )
174 sout_StreamChainDelete(p_sys->pp_streams[i], p_sys->pp_last_streams[i]);
175 free( p_sys->ppsz_select[i] );
177 free( p_sys->pp_streams );
178 free( p_sys->pp_last_streams );
179 free( p_sys->ppsz_select );
184 /*****************************************************************************
186 *****************************************************************************/
187 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
189 sout_stream_sys_t *p_sys = p_stream->p_sys;
190 sout_stream_id_t *id;
191 int i_stream, i_valid_streams = 0;
193 id = malloc( sizeof( sout_stream_id_t ) );
197 TAB_INIT( id->i_nb_ids, id->pp_ids );
199 msg_Dbg( p_stream, "duplicated a new stream codec=%4.4s (es=%d group=%d)",
200 (char*)&p_fmt->i_codec, p_fmt->i_id, p_fmt->i_group );
202 for( i_stream = 0; i_stream < p_sys->i_nb_streams; i_stream++ )
206 if( ESSelected( p_fmt, p_sys->ppsz_select[i_stream] ) )
208 sout_stream_t *out = p_sys->pp_streams[i_stream];
210 id_new = (void*)sout_StreamIdAdd( out, p_fmt );
213 msg_Dbg( p_stream, " - added for output %d", i_stream );
218 msg_Dbg( p_stream, " - failed for output %d", i_stream );
223 msg_Dbg( p_stream, " - ignored for output %d", i_stream );
226 /* Append failed attempts as well to keep track of which pp_id
227 * belongs to which duplicated stream */
228 TAB_APPEND( id->i_nb_ids, id->pp_ids, id_new );
231 if( i_valid_streams <= 0 )
240 /*****************************************************************************
242 *****************************************************************************/
243 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
245 sout_stream_sys_t *p_sys = p_stream->p_sys;
248 for( i_stream = 0; i_stream < p_sys->i_nb_streams; i_stream++ )
250 if( id->pp_ids[i_stream] )
252 sout_stream_t *out = p_sys->pp_streams[i_stream];
253 sout_StreamIdDel( out, id->pp_ids[i_stream] );
262 /*****************************************************************************
264 *****************************************************************************/
265 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
268 sout_stream_sys_t *p_sys = p_stream->p_sys;
269 sout_stream_t *p_dup_stream;
272 /* Loop through the linked list of buffers */
275 block_t *p_next = p_buffer->p_next;
277 p_buffer->p_next = NULL;
279 for( i_stream = 0; i_stream < p_sys->i_nb_streams - 1; i_stream++ )
281 p_dup_stream = p_sys->pp_streams[i_stream];
283 if( id->pp_ids[i_stream] )
285 block_t *p_dup = block_Duplicate( p_buffer );
288 sout_StreamIdSend( p_dup_stream, id->pp_ids[i_stream], p_dup );
292 if( i_stream < p_sys->i_nb_streams && id->pp_ids[i_stream] )
294 p_dup_stream = p_sys->pp_streams[i_stream];
295 sout_StreamIdSend( p_dup_stream, id->pp_ids[i_stream], p_buffer );
299 block_Release( p_buffer );
307 /*****************************************************************************
309 *****************************************************************************/
310 static bool NumInRange( const char *psz_range, int i_num )
312 const char *psz = strchr( psz_range, '-' );
316 i_start = strtol( psz_range, &end, 0 );
317 if( end == psz_range )
323 i_stop = strtol( psz, &end, 0 );
330 return i_start <= i_num && i_num <= i_stop;
333 static bool ESSelected( es_format_t *fmt, char *psz_select )
338 /* We have tri-state variable : no tested (-1), failed(0), succeed(1) */
343 /* If empty all es are selected */
344 if( psz_select == NULL || *psz_select == '\0' )
348 psz_dup = strdup( psz_select );
353 /* If non empty, parse the selection:
354 * We have selection[,selection[,..]] where following selection are recognized:
358 * (no(-))es=[start]-[end] or es=num
359 * (no(-))prgm=[start]-[end] or prgm=num (program works too)
360 * if a negative test failed we exit directly
367 while( *psz == ' ' || *psz == '\t' ) psz++;
370 p = strchr( psz, ',' );
382 if( !strncmp( psz, "no-audio", strlen( "no-audio" ) ) ||
383 !strncmp( psz, "noaudio", strlen( "noaudio" ) ) )
387 i_cat = fmt->i_cat != AUDIO_ES ? 1 : 0;
390 else if( !strncmp( psz, "no-video", strlen( "no-video" ) ) ||
391 !strncmp( psz, "novideo", strlen( "novideo" ) ) )
395 i_cat = fmt->i_cat != VIDEO_ES ? 1 : 0;
398 else if( !strncmp( psz, "no-spu", strlen( "no-spu" ) ) ||
399 !strncmp( psz, "nospu", strlen( "nospu" ) ) )
403 i_cat = fmt->i_cat != SPU_ES ? 1 : 0;
406 else if( !strncmp( psz, "audio", strlen( "audio" ) ) )
410 i_cat = fmt->i_cat == AUDIO_ES ? 1 : 0;
413 else if( !strncmp( psz, "video", strlen( "video" ) ) )
417 i_cat = fmt->i_cat == VIDEO_ES ? 1 : 0;
420 else if( !strncmp( psz, "spu", strlen( "spu" ) ) )
424 i_cat = fmt->i_cat == SPU_ES ? 1 : 0;
427 else if( strchr( psz, '=' ) != NULL )
429 char *psz_arg = strchr( psz, '=' );
432 if( !strcmp( psz, "no-es" ) || !strcmp( psz, "noes" ) )
436 i_es = NumInRange( psz_arg, fmt->i_id ) ? 0 : -1;
439 else if( !strcmp( psz, "es" ) )
443 i_es = NumInRange( psz_arg, fmt->i_id) ? 1 : -1;
446 else if( !strcmp( psz, "no-prgm" ) || !strcmp( psz, "noprgm" ) ||
447 !strcmp( psz, "no-program" ) || !strcmp( psz, "noprogram" ) )
449 if( fmt->i_group >= 0 && i_prgm == -1 )
451 i_prgm = NumInRange( psz_arg, fmt->i_group ) ? 0 : -1;
454 else if( !strcmp( psz, "prgm" ) || !strcmp( psz, "program" ) )
456 if( fmt->i_group >= 0 && i_prgm == -1 )
458 i_prgm = NumInRange( psz_arg, fmt->i_group ) ? 1 : -1;
464 fprintf( stderr, "unknown args (%s)\n", psz );
472 if( i_cat == 1 || i_es == 1 || i_prgm == 1 )