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;
71 struct sout_stream_id_t
77 static bool ESSelected( es_format_t *fmt, char *psz_select );
79 /*****************************************************************************
81 *****************************************************************************/
82 static int Open( vlc_object_t *p_this )
84 sout_stream_t *p_stream = (sout_stream_t*)p_this;
85 sout_stream_sys_t *p_sys;
86 config_chain_t *p_cfg;
88 msg_Dbg( p_stream, "creating 'duplicate'" );
90 p_sys = malloc( sizeof( sout_stream_sys_t ) );
94 TAB_INIT( p_sys->i_nb_streams, p_sys->pp_streams );
95 TAB_INIT( p_sys->i_nb_select, p_sys->ppsz_select );
97 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
99 if( !strncmp( p_cfg->psz_name, "dst", strlen( "dst" ) ) )
103 msg_Dbg( p_stream, " * adding `%s'", p_cfg->psz_value );
104 s = sout_StreamNew( p_stream->p_sout, p_cfg->psz_value );
108 TAB_APPEND( p_sys->i_nb_streams, p_sys->pp_streams, s );
109 TAB_APPEND( p_sys->i_nb_select, p_sys->ppsz_select, NULL );
112 else if( !strncmp( p_cfg->psz_name, "select", strlen( "select" ) ) )
114 char *psz = p_cfg->psz_value;
115 if( p_sys->i_nb_select > 0 && psz && *psz )
117 char **ppsz_select = &p_sys->ppsz_select[p_sys->i_nb_select - 1];
121 msg_Err( p_stream, " * ignore selection `%s' (it already has `%s')",
126 msg_Dbg( p_stream, " * apply selection `%s'", psz );
127 *ppsz_select = strdup( psz );
133 msg_Err( p_stream, " * ignore unknown option `%s'", p_cfg->psz_name );
137 if( p_sys->i_nb_streams == 0 )
139 msg_Err( p_stream, "no destination given" );
145 p_stream->pf_add = Add;
146 p_stream->pf_del = Del;
147 p_stream->pf_send = Send;
149 p_stream->p_sys = p_sys;
154 /*****************************************************************************
156 *****************************************************************************/
157 static void Close( vlc_object_t * p_this )
159 sout_stream_t *p_stream = (sout_stream_t*)p_this;
160 sout_stream_sys_t *p_sys = p_stream->p_sys;
164 msg_Dbg( p_stream, "closing a duplication" );
165 for( i = 0; i < p_sys->i_nb_streams; i++ )
167 sout_StreamDelete( p_sys->pp_streams[i] );
168 free( p_sys->ppsz_select[i] );
170 free( p_sys->pp_streams );
171 free( p_sys->ppsz_select );
176 /*****************************************************************************
178 *****************************************************************************/
179 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
181 sout_stream_sys_t *p_sys = p_stream->p_sys;
182 sout_stream_id_t *id;
183 int i_stream, i_valid_streams = 0;
185 id = malloc( sizeof( sout_stream_id_t ) );
189 TAB_INIT( id->i_nb_ids, id->pp_ids );
191 msg_Dbg( p_stream, "duplicated a new stream codec=%4.4s (es=%d group=%d)",
192 (char*)&p_fmt->i_codec, p_fmt->i_id, p_fmt->i_group );
194 for( i_stream = 0; i_stream < p_sys->i_nb_streams; i_stream++ )
198 if( ESSelected( p_fmt, p_sys->ppsz_select[i_stream] ) )
200 sout_stream_t *out = p_sys->pp_streams[i_stream];
202 id_new = (void*)sout_StreamIdAdd( out, p_fmt );
205 msg_Dbg( p_stream, " - added for output %d", i_stream );
210 msg_Dbg( p_stream, " - failed for output %d", i_stream );
215 msg_Dbg( p_stream, " - ignored for output %d", i_stream );
218 /* Append failed attempts as well to keep track of which pp_id
219 * belongs to which duplicated stream */
220 TAB_APPEND( id->i_nb_ids, id->pp_ids, id_new );
223 if( i_valid_streams <= 0 )
232 /*****************************************************************************
234 *****************************************************************************/
235 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
237 sout_stream_sys_t *p_sys = p_stream->p_sys;
240 for( i_stream = 0; i_stream < p_sys->i_nb_streams; i_stream++ )
242 if( id->pp_ids[i_stream] )
244 sout_stream_t *out = p_sys->pp_streams[i_stream];
245 sout_StreamIdDel( out, id->pp_ids[i_stream] );
254 /*****************************************************************************
256 *****************************************************************************/
257 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
260 sout_stream_sys_t *p_sys = p_stream->p_sys;
261 sout_stream_t *p_dup_stream;
264 /* Loop through the linked list of buffers */
267 block_t *p_next = p_buffer->p_next;
269 p_buffer->p_next = NULL;
271 for( i_stream = 0; i_stream < p_sys->i_nb_streams - 1; i_stream++ )
273 p_dup_stream = p_sys->pp_streams[i_stream];
275 if( id->pp_ids[i_stream] )
277 block_t *p_dup = block_Duplicate( p_buffer );
280 sout_StreamIdSend( p_dup_stream, id->pp_ids[i_stream], p_dup );
284 if( i_stream < p_sys->i_nb_streams && id->pp_ids[i_stream] )
286 p_dup_stream = p_sys->pp_streams[i_stream];
287 sout_StreamIdSend( p_dup_stream, id->pp_ids[i_stream], p_buffer );
291 block_Release( p_buffer );
299 /*****************************************************************************
301 *****************************************************************************/
302 static bool NumInRange( char *psz_range, int i_num )
304 char *psz = strchr( psz_range, '-' );
310 i_start = strtol( psz_range, &end, 0 );
311 if( end == psz_range ) i_start = i_num;
313 i_stop = strtol( psz, &end, 0 );
314 if( end == psz_range ) i_stop = i_num;
318 i_start = i_stop = strtol( psz_range, NULL, 0 );
321 return i_start <= i_num && i_num <= i_stop ? true : false;
324 static bool ESSelected( es_format_t *fmt, char *psz_select )
329 /* We have tri-state variable : no tested (-1), failed(0), succeed(1) */
334 /* If empty all es are selected */
335 if( psz_select == NULL || *psz_select == '\0' )
339 psz_dup = strdup( psz_select );
344 /* If non empty, parse the selection:
345 * We have selection[,selection[,..]] where following selection are recognized:
349 * (no(-))es=[start]-[end] or es=num
350 * (no(-))prgm=[start]-[end] or prgm=num (program works too)
351 * if a negative test failed we exit directly
358 while( *psz == ' ' || *psz == '\t' ) psz++;
361 p = strchr( psz, ',' );
373 if( !strncmp( psz, "no-audio", strlen( "no-audio" ) ) ||
374 !strncmp( psz, "noaudio", strlen( "noaudio" ) ) )
378 i_cat = fmt->i_cat != AUDIO_ES ? 1 : 0;
381 else if( !strncmp( psz, "no-video", strlen( "no-video" ) ) ||
382 !strncmp( psz, "novideo", strlen( "novideo" ) ) )
386 i_cat = fmt->i_cat != VIDEO_ES ? 1 : 0;
389 else if( !strncmp( psz, "no-spu", strlen( "no-spu" ) ) ||
390 !strncmp( psz, "nospu", strlen( "nospu" ) ) )
394 i_cat = fmt->i_cat != SPU_ES ? 1 : 0;
397 else if( !strncmp( psz, "audio", strlen( "audio" ) ) )
401 i_cat = fmt->i_cat == AUDIO_ES ? 1 : 0;
404 else if( !strncmp( psz, "video", strlen( "video" ) ) )
408 i_cat = fmt->i_cat == VIDEO_ES ? 1 : 0;
411 else if( !strncmp( psz, "spu", strlen( "spu" ) ) )
415 i_cat = fmt->i_cat == SPU_ES ? 1 : 0;
418 else if( strchr( psz, '=' ) != NULL )
420 char *psz_arg = strchr( psz, '=' );
423 if( !strcmp( psz, "no-es" ) || !strcmp( psz, "noes" ) )
427 i_es = NumInRange( psz_arg, fmt->i_id ) ? 0 : -1;
430 else if( !strcmp( psz, "es" ) )
434 i_es = NumInRange( psz_arg, fmt->i_id) ? 1 : -1;
437 else if( !strcmp( psz, "no-prgm" ) || !strcmp( psz, "noprgm" ) ||
438 !strcmp( psz, "no-program" ) || !strcmp( psz, "noprogram" ) )
440 if( fmt->i_group >= 0 && i_prgm == -1 )
442 i_prgm = NumInRange( psz_arg, fmt->i_group ) ? 0 : -1;
445 else if( !strcmp( psz, "prgm" ) || !strcmp( psz, "program" ) )
447 if( fmt->i_group >= 0 && i_prgm == -1 )
449 i_prgm = NumInRange( psz_arg, fmt->i_group ) ? 1 : -1;
455 fprintf( stderr, "unknown args (%s)\n", psz );
463 if( i_cat == 1 || i_es == 1 || i_prgm == 1 )