1 /*****************************************************************************
2 * stream_output.c : stream output module
3 *****************************************************************************
4 * Copyright (C) 2002-2007 the VideoLAN team
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
8 * Laurent Aimar <fenrir@via.ecp.fr>
9 * Eric Petit <titer@videolan.org>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
26 /*****************************************************************************
28 *****************************************************************************/
36 #include <vlc_common.h>
38 #include <stdlib.h> /* free() */
39 #include <stdio.h> /* sprintf() */
44 #include "stream_output.h"
47 #include <vlc_block.h>
48 #include <vlc_codec.h>
49 #include <vlc_modules.h>
51 #include "input/input_interface.h"
53 #define VLC_CODEC_NULL VLC_FOURCC( 'n', 'u', 'l', 'l' )
56 /*****************************************************************************
58 *****************************************************************************/
59 static char *sout_stream_url_to_chain( bool, const char * );
73 /* mrl_Parse: parse psz_mrl and fill p_mrl */
74 static int mrl_Parse( mrl_t *p_mrl, const char *psz_mrl );
75 /* mrl_Clean: clean p_mrl after a call to mrl_Parse */
76 static void mrl_Clean( mrl_t *p_mrl );
78 /*****************************************************************************
79 * sout_NewInstance: creates a new stream output instance
80 *****************************************************************************/
81 sout_instance_t *__sout_NewInstance( vlc_object_t *p_parent, const char *psz_dest )
83 static const char typename[] = "stream output";
84 sout_instance_t *p_sout;
87 if( psz_dest && psz_dest[0] == '#' )
89 psz_chain = strdup( &psz_dest[1] );
93 psz_chain = sout_stream_url_to_chain(
94 var_InheritBool(p_parent, "sout-display"), psz_dest );
99 /* *** Allocate descriptor *** */
100 p_sout = vlc_custom_create( p_parent, sizeof( *p_sout ),
101 VLC_OBJECT_GENERIC, typename );
105 msg_Dbg( p_sout, "using sout chain=`%s'", psz_chain );
107 /* *** init descriptor *** */
108 p_sout->psz_sout = strdup( psz_dest );
109 p_sout->p_meta = NULL;
110 p_sout->i_out_pace_nocontrol = 0;
111 p_sout->p_sys = NULL;
113 vlc_mutex_init( &p_sout->lock );
114 p_sout->p_stream = NULL;
116 /* attach it for inherit */
117 vlc_object_attach( p_sout, p_parent );
119 var_Create( p_sout, "sout-mux-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
121 p_sout->p_stream = sout_StreamChainNew( p_sout, psz_chain, NULL, NULL );
122 if( p_sout->p_stream )
128 msg_Err( p_sout, "stream chain failed for `%s'", psz_chain );
131 FREENULL( p_sout->psz_sout );
133 vlc_object_release( p_sout );
137 /*****************************************************************************
138 * sout_DeleteInstance: delete a previously allocated instance
139 *****************************************************************************/
140 void sout_DeleteInstance( sout_instance_t * p_sout )
142 /* remove the stream out chain */
143 sout_StreamChainDelete( p_sout->p_stream, NULL );
145 /* *** free all string *** */
146 FREENULL( p_sout->psz_sout );
151 vlc_meta_Delete( p_sout->p_meta );
154 vlc_mutex_destroy( &p_sout->lock );
156 /* *** free structure *** */
157 vlc_object_release( p_sout );
160 /*****************************************************************************
162 *****************************************************************************/
163 void sout_UpdateStatistic( sout_instance_t *p_sout, sout_statistic_t i_type, int i_delta )
165 if( !libvlc_stats( p_sout ) )
169 input_thread_t *p_input = vlc_object_find( p_sout, VLC_OBJECT_INPUT, FIND_PARENT );
176 case SOUT_STATISTIC_DECODED_VIDEO:
177 i_input_type = SOUT_STATISTIC_DECODED_VIDEO;
179 case SOUT_STATISTIC_DECODED_AUDIO:
180 i_input_type = SOUT_STATISTIC_DECODED_AUDIO;
182 case SOUT_STATISTIC_DECODED_SUBTITLE:
183 i_input_type = SOUT_STATISTIC_DECODED_SUBTITLE;
186 case SOUT_STATISTIC_SENT_PACKET:
187 i_input_type = SOUT_STATISTIC_SENT_PACKET;
190 case SOUT_STATISTIC_SENT_BYTE:
191 i_input_type = SOUT_STATISTIC_SENT_BYTE;
195 msg_Err( p_sout, "Not yet supported statistic type %d", i_type );
196 vlc_object_release( p_input );
200 input_UpdateStatistic( p_input, i_input_type, i_delta );
202 vlc_object_release( p_input );
204 /*****************************************************************************
206 *****************************************************************************/
207 sout_packetizer_input_t *sout_InputNew( sout_instance_t *p_sout,
210 sout_packetizer_input_t *p_input;
212 /* *** create a packetizer input *** */
213 p_input = malloc( sizeof( sout_packetizer_input_t ) );
214 if( !p_input ) return NULL;
215 p_input->p_sout = p_sout;
216 p_input->p_fmt = p_fmt;
218 msg_Dbg( p_sout, "adding a new sout input (sout_input:%p)", p_input );
220 if( p_fmt->i_codec == VLC_CODEC_NULL )
222 vlc_object_release( p_sout );
226 /* *** add it to the stream chain */
227 vlc_mutex_lock( &p_sout->lock );
228 p_input->id = p_sout->p_stream->pf_add( p_sout->p_stream, p_fmt );
229 vlc_mutex_unlock( &p_sout->lock );
231 if( p_input->id == NULL )
240 /*****************************************************************************
242 *****************************************************************************/
243 int sout_InputDelete( sout_packetizer_input_t *p_input )
245 sout_instance_t *p_sout = p_input->p_sout;
247 msg_Dbg( p_sout, "removing a sout input (sout_input:%p)", p_input );
249 if( p_input->p_fmt->i_codec != VLC_CODEC_NULL )
251 vlc_mutex_lock( &p_sout->lock );
252 p_sout->p_stream->pf_del( p_sout->p_stream, p_input->id );
253 vlc_mutex_unlock( &p_sout->lock );
258 return( VLC_SUCCESS);
261 /*****************************************************************************
263 *****************************************************************************/
264 int sout_InputSendBuffer( sout_packetizer_input_t *p_input,
267 sout_instance_t *p_sout = p_input->p_sout;
270 if( p_input->p_fmt->i_codec == VLC_CODEC_NULL )
272 block_Release( p_buffer );
276 if( p_buffer->i_dts <= VLC_TS_INVALID )
278 msg_Warn( p_sout, "trying to send non-dated packet to stream output!");
279 block_Release( p_buffer );
283 vlc_mutex_lock( &p_sout->lock );
284 i_ret = p_sout->p_stream->pf_send( p_sout->p_stream,
285 p_input->id, p_buffer );
286 vlc_mutex_unlock( &p_sout->lock );
291 #undef sout_AccessOutNew
292 /*****************************************************************************
293 * sout_AccessOutNew: allocate a new access out
294 *****************************************************************************/
295 sout_access_out_t *sout_AccessOutNew( vlc_object_t *p_sout,
296 const char *psz_access, const char *psz_name )
298 static const char typename[] = "access out";
299 sout_access_out_t *p_access;
302 p_access = vlc_custom_create( p_sout, sizeof( *p_access ),
303 VLC_OBJECT_GENERIC, typename );
307 psz_next = config_ChainCreate( &p_access->psz_access, &p_access->p_cfg,
310 p_access->psz_path = strdup( psz_name ? psz_name : "" );
311 p_access->p_sys = NULL;
312 p_access->pf_seek = NULL;
313 p_access->pf_read = NULL;
314 p_access->pf_write = NULL;
315 p_access->pf_control = NULL;
316 p_access->p_module = NULL;
318 p_access->i_writes = 0;
319 p_access->i_sent_bytes = 0;
321 vlc_object_attach( p_access, p_sout );
324 module_need( p_access, "sout access", p_access->psz_access, true );
326 if( !p_access->p_module )
328 free( p_access->psz_access );
329 free( p_access->psz_path );
330 vlc_object_release( p_access );
336 /*****************************************************************************
337 * sout_AccessDelete: delete an access out
338 *****************************************************************************/
339 void sout_AccessOutDelete( sout_access_out_t *p_access )
341 if( p_access->p_module )
343 module_unneed( p_access, p_access->p_module );
345 free( p_access->psz_access );
347 config_ChainDestroy( p_access->p_cfg );
349 free( p_access->psz_path );
351 vlc_object_release( p_access );
354 /*****************************************************************************
356 *****************************************************************************/
357 int sout_AccessOutSeek( sout_access_out_t *p_access, off_t i_pos )
359 return p_access->pf_seek( p_access, i_pos );
362 /*****************************************************************************
364 *****************************************************************************/
365 ssize_t sout_AccessOutRead( sout_access_out_t *p_access, block_t *p_buffer )
367 return( p_access->pf_read ?
368 p_access->pf_read( p_access, p_buffer ) : VLC_EGENERIC );
371 /*****************************************************************************
373 *****************************************************************************/
374 ssize_t sout_AccessOutWrite( sout_access_out_t *p_access, block_t *p_buffer )
377 const unsigned i_packets_gather = 30;
378 p_access->i_writes++;
379 p_access->i_sent_bytes += p_buffer->i_buffer;
380 if( (p_access->i_writes % i_packets_gather) == 0 )
382 sout_UpdateStatistic( p_access->p_sout, SOUT_STATISTIC_SENT_PACKET, i_packets_gather );
383 sout_UpdateStatistic( p_access->p_sout, SOUT_STATISTIC_SENT_BYTE, p_access->i_sent_bytes );
384 p_access->i_sent_bytes = 0;
387 return p_access->pf_write( p_access, p_buffer );
391 * sout_AccessOutControl
393 int sout_AccessOutControl (sout_access_out_t *access, int query, ...)
398 va_start (ap, query);
399 if (access->pf_control)
400 ret = access->pf_control (access, query, ap);
407 /*****************************************************************************
408 * sout_MuxNew: create a new mux
409 *****************************************************************************/
410 sout_mux_t * sout_MuxNew( sout_instance_t *p_sout, const char *psz_mux,
411 sout_access_out_t *p_access )
413 static const char typename[] = "mux";
417 p_mux = vlc_custom_create( p_sout, sizeof( *p_mux ), VLC_OBJECT_GENERIC,
422 p_mux->p_sout = p_sout;
423 psz_next = config_ChainCreate( &p_mux->psz_mux, &p_mux->p_cfg, psz_mux );
426 p_mux->p_access = p_access;
427 p_mux->pf_control = NULL;
428 p_mux->pf_addstream = NULL;
429 p_mux->pf_delstream = NULL;
430 p_mux->pf_mux = NULL;
431 p_mux->i_nb_inputs = 0;
432 p_mux->pp_inputs = NULL;
435 p_mux->p_module = NULL;
437 p_mux->b_add_stream_any_time = false;
438 p_mux->b_waiting_stream = true;
439 p_mux->i_add_stream_start = -1;
441 vlc_object_attach( p_mux, p_sout );
444 module_need( p_mux, "sout mux", p_mux->psz_mux, true );
446 if( p_mux->p_module == NULL )
448 FREENULL( p_mux->psz_mux );
450 vlc_object_release( p_mux );
454 /* *** probe mux capacity *** */
455 if( p_mux->pf_control )
457 int b_answer = false;
459 if( sout_MuxControl( p_mux, MUX_CAN_ADD_STREAM_WHILE_MUXING,
467 msg_Dbg( p_sout, "muxer support adding stream at any time" );
468 p_mux->b_add_stream_any_time = true;
469 p_mux->b_waiting_stream = false;
471 /* If we control the output pace then it's better to wait before
472 * starting muxing (generates better streams/files). */
473 if( !p_sout->i_out_pace_nocontrol )
477 else if( sout_MuxControl( p_mux, MUX_GET_ADD_STREAM_WAIT,
485 msg_Dbg( p_sout, "muxer prefers to wait for all ES before "
487 p_mux->b_waiting_stream = true;
495 /*****************************************************************************
497 *****************************************************************************/
498 void sout_MuxDelete( sout_mux_t *p_mux )
500 if( p_mux->p_module )
502 module_unneed( p_mux, p_mux->p_module );
504 free( p_mux->psz_mux );
506 config_ChainDestroy( p_mux->p_cfg );
508 vlc_object_release( p_mux );
511 /*****************************************************************************
513 *****************************************************************************/
514 sout_input_t *sout_MuxAddStream( sout_mux_t *p_mux, es_format_t *p_fmt )
516 sout_input_t *p_input;
518 if( !p_mux->b_add_stream_any_time && !p_mux->b_waiting_stream )
520 msg_Err( p_mux, "cannot add a new stream (unsupported while muxing "
521 "to this format). You can try increasing sout-mux-caching value" );
525 msg_Dbg( p_mux, "adding a new input" );
527 /* create a new sout input */
528 p_input = malloc( sizeof( sout_input_t ) );
531 p_input->p_sout = p_mux->p_sout;
532 p_input->p_fmt = p_fmt;
533 p_input->p_fifo = block_FifoNew();
534 p_input->p_sys = NULL;
536 TAB_APPEND( p_mux->i_nb_inputs, p_mux->pp_inputs, p_input );
537 if( p_mux->pf_addstream( p_mux, p_input ) < 0 )
539 msg_Err( p_mux, "cannot add this stream" );
540 TAB_REMOVE( p_mux->i_nb_inputs, p_mux->pp_inputs, p_input );
541 block_FifoRelease( p_input->p_fifo );
549 /*****************************************************************************
550 * sout_MuxDeleteStream:
551 *****************************************************************************/
552 void sout_MuxDeleteStream( sout_mux_t *p_mux, sout_input_t *p_input )
556 if( p_mux->b_waiting_stream
557 && block_FifoCount( p_input->p_fifo ) > 0 )
559 /* We stop waiting, and call the muxer for taking care of the data
560 * before we remove this es */
561 p_mux->b_waiting_stream = false;
562 p_mux->pf_mux( p_mux );
565 TAB_FIND( p_mux->i_nb_inputs, p_mux->pp_inputs, p_input, i_index );
568 if( p_mux->pf_delstream( p_mux, p_input ) < 0 )
570 msg_Err( p_mux, "cannot delete this stream from mux" );
573 /* remove the entry */
574 TAB_REMOVE( p_mux->i_nb_inputs, p_mux->pp_inputs, p_input );
576 if( p_mux->i_nb_inputs == 0 )
578 msg_Warn( p_mux, "no more input streams for this mux" );
581 block_FifoRelease( p_input->p_fifo );
586 /*****************************************************************************
587 * sout_MuxSendBuffer:
588 *****************************************************************************/
589 void sout_MuxSendBuffer( sout_mux_t *p_mux, sout_input_t *p_input,
592 block_FifoPut( p_input->p_fifo, p_buffer );
594 if( p_mux->p_sout->i_out_pace_nocontrol )
596 mtime_t current_date = mdate();
597 if ( current_date > p_buffer->i_dts )
598 msg_Warn( p_mux, "late buffer for mux input (%"PRId64")",
599 current_date - p_buffer->i_dts );
602 if( p_mux->b_waiting_stream )
604 const int64_t i_caching = var_GetInteger( p_mux->p_sout, "sout-mux-caching" ) * INT64_C(1000);
606 if( p_mux->i_add_stream_start < 0 )
607 p_mux->i_add_stream_start = p_buffer->i_dts;
609 /* Wait until we have enought data before muxing */
610 if( p_mux->i_add_stream_start < 0 ||
611 p_buffer->i_dts < p_mux->i_add_stream_start + i_caching )
613 p_mux->b_waiting_stream = false;
615 p_mux->pf_mux( p_mux );
619 /*****************************************************************************
620 * sout_MuxGetStream: find stream to be muxed
621 *****************************************************************************/
622 int sout_MuxGetStream( sout_mux_t *p_mux, int i_blocks, mtime_t *pi_dts )
627 for( int i = 0; i < p_mux->i_nb_inputs; i++ )
629 sout_input_t *p_input = p_mux->pp_inputs[i];
632 if( block_FifoCount( p_input->p_fifo ) < i_blocks )
634 if( p_input->p_fmt->i_cat != SPU_ES )
638 /* FIXME: SPU muxing */
642 p_data = block_FifoShow( p_input->p_fifo );
643 if( i_stream < 0 || p_data->i_dts < i_dts )
646 i_dts = p_data->i_dts;
650 if( pi_dts ) *pi_dts = i_dts;
656 /*****************************************************************************
658 *****************************************************************************/
659 static int mrl_Parse( mrl_t *p_mrl, const char *psz_mrl )
661 char * psz_dup = strdup( psz_mrl );
662 char * psz_parser = psz_dup;
663 const char * psz_access;
664 const char * psz_way;
667 /* *** first parse psz_dest */
668 while( *psz_parser && *psz_parser != ':' )
670 if( *psz_parser == '{' )
672 while( *psz_parser && *psz_parser != '}' )
686 #if defined( WIN32 ) || defined( UNDER_CE )
687 if( psz_parser - psz_dup == 1 )
689 /* msg_Warn( p_sout, "drive letter %c: found in source string",
697 psz_access = psz_way = "";
702 *psz_parser++ = '\0';
704 /* let's skip '//' */
705 if( psz_parser[0] == '/' && psz_parser[1] == '/' )
710 psz_name = psz_parser ;
712 /* Come back to parse the access and mux plug-ins */
713 psz_parser = psz_dup;
720 else if( *psz_parser == '/' )
728 psz_access = psz_parser;
730 while( *psz_parser && *psz_parser != '/' )
732 if( *psz_parser == '{' )
734 while( *psz_parser && *psz_parser != '}' )
749 if( *psz_parser == '/' )
751 *psz_parser++ = '\0';
762 psz_way = psz_parser;
766 p_mrl->psz_access = strdup( psz_access );
767 p_mrl->psz_way = strdup( psz_way );
768 p_mrl->psz_name = strdup( psz_name );
771 return( VLC_SUCCESS );
775 /* mrl_Clean: clean p_mrl after a call to mrl_Parse */
776 static void mrl_Clean( mrl_t *p_mrl )
778 FREENULL( p_mrl->psz_access );
779 FREENULL( p_mrl->psz_way );
780 FREENULL( p_mrl->psz_name );
784 /****************************************************************************
785 ****************************************************************************
789 ****************************************************************************
790 ****************************************************************************/
792 /* Destroy a "stream_out" module */
793 static void sout_StreamDelete( sout_stream_t *p_stream )
795 msg_Dbg( p_stream, "destroying chain... (name=%s)", p_stream->psz_name );
797 if( p_stream->p_module ) module_unneed( p_stream, p_stream->p_module );
799 FREENULL( p_stream->psz_name );
801 config_ChainDestroy( p_stream->p_cfg );
803 msg_Dbg( p_stream, "destroying chain done" );
804 vlc_object_release( p_stream );
807 /* Destroy a "stream_out" modules chain
809 * p_first is the first module to be destroyed in the chain
810 * p_last is the last module to be destroyed
811 * if NULL, all modules are destroyed
812 * if not NULL, modules following it must be destroyed separately
814 void sout_StreamChainDelete(sout_stream_t *p_first, sout_stream_t *p_last)
816 while(p_first != NULL)
818 sout_stream_t *p_next = p_first->p_next;
820 sout_StreamDelete(p_first);
821 if(p_first == p_last)
827 /* Create a "stream_out" module, which may forward its ES to p_next module */
829 * XXX name and p_cfg are used (-> do NOT free them)
831 static sout_stream_t *sout_StreamNew( sout_instance_t *p_sout, char *psz_name,
832 config_chain_t *p_cfg, sout_stream_t *p_next)
834 static const char typename[] = "stream out";
835 sout_stream_t *p_stream;
839 p_stream = vlc_custom_create( p_sout, sizeof( *p_stream ),
840 VLC_OBJECT_GENERIC, typename );
844 p_stream->p_sout = p_sout;
845 p_stream->p_sys = NULL;
846 p_stream->psz_name = psz_name;
847 p_stream->p_cfg = p_cfg;
848 p_stream->p_next = p_next;
850 msg_Dbg( p_sout, "stream=`%s'", p_stream->psz_name );
852 vlc_object_attach( p_stream, p_sout );
855 module_need( p_stream, "sout stream", p_stream->psz_name, true );
857 if( !p_stream->p_module )
859 /* those must be freed by the caller if creation failed */
860 p_stream->psz_name = NULL;
861 p_stream->p_cfg = NULL;
863 sout_StreamDelete( p_stream );
870 /* Creates a complete "stream_out" modules chain
872 * chain format: module1{option=*:option=*}[:module2{option=*:...}]
874 * The modules are created starting from the last one and linked together
875 * A pointer to the last module created is stored if pp_last isn't NULL, to
876 * make sure sout_StreamChainDelete doesn't delete modules created in another
879 * Returns a pointer to the first module.
881 sout_stream_t *sout_StreamChainNew(sout_instance_t *p_sout, char *psz_chain,
882 sout_stream_t *p_next, sout_stream_t **pp_last)
884 if(!psz_chain || !*psz_chain)
886 if(pp_last) *pp_last = NULL;
890 char *psz_parser = strdup(psz_chain);
894 vlc_array_t cfg, name;
895 vlc_array_init(&cfg);
896 vlc_array_init(&name);
901 config_chain_t *p_cfg;
903 psz_chain = config_ChainCreate( &psz_name, &p_cfg, psz_parser );
905 psz_parser = psz_chain;
907 vlc_array_append(&cfg, p_cfg);
908 vlc_array_append(&name, psz_name);
911 int i = vlc_array_count(&name);
913 vlc_array_init(&module);
916 p_next = sout_StreamNew( p_sout, vlc_array_item_at_index(&name, i),
917 vlc_array_item_at_index(&cfg, i), p_next);
922 if(i == vlc_array_count(&name) - 1 && pp_last)
923 *pp_last = p_next; /* last module created in the chain */
925 vlc_array_append(&module, p_next);
928 vlc_array_clear(&name);
929 vlc_array_clear(&cfg);
930 vlc_array_clear(&module);
936 i++; /* last module couldn't be created */
938 /* destroy all modules created, starting with the last one */
939 int modules = vlc_array_count(&module);
941 sout_StreamDelete(vlc_array_item_at_index(&module, modules));
942 vlc_array_clear(&module);
944 /* then destroy all names and config which weren't destroyed by
945 * sout_StreamDelete */
948 free(vlc_array_item_at_index(&name, i));
949 config_ChainDestroy(vlc_array_item_at_index(&cfg, i));
951 vlc_array_clear(&name);
952 vlc_array_clear(&cfg);
957 static char *sout_stream_url_to_chain( bool b_sout_display,
958 const char *psz_url )
963 mrl_Parse( &mrl, psz_url );
965 /* Check if the URLs goes to #rtp - otherwise we'll use #standard */
966 static const char rtplist[] = "dccp\0sctp\0tcp\0udplite\0";
967 for (const char *a = rtplist; *a; a += strlen (a) + 1)
968 if (strcmp (a, mrl.psz_access) == 0)
971 if (strcmp (mrl.psz_access, "rtp") == 0)
974 /* For historical reasons, rtp:// means RTP over UDP */
975 strcpy (mrl.psz_access, "udp");
977 if (mrl.psz_name[0] == '[')
979 port = strstr (mrl.psz_name, "]:");
984 port = strchr (mrl.psz_name, ':');
986 *port++ = '\0'; /* erase ':' */
988 if (asprintf (&psz_chain,
989 "rtp{mux=\"%s\",proto=\"%s\",dst=\"%s%s%s\"}",
990 mrl.psz_way, mrl.psz_access, mrl.psz_name,
991 port ? "\",port=\"" : "", port ? port : "") == -1)
996 /* Convert the URL to a basic standard sout chain */
997 if (asprintf (&psz_chain,
998 "standard{mux=\"%s\",access=\"%s\",dst=\"%s\"}",
999 mrl.psz_way, mrl.psz_access, mrl.psz_name) == -1)
1003 /* Duplicate and wrap if sout-display is on */
1004 if (psz_chain && b_sout_display)
1007 if (asprintf (&tmp, "duplicate{dst=display,dst=%s}", psz_chain) == -1)
1017 #undef sout_EncoderCreate
1018 encoder_t *sout_EncoderCreate( vlc_object_t *p_this )
1020 static const char type[] = "encoder";
1021 return vlc_custom_create( p_this, sizeof( encoder_t ), VLC_OBJECT_GENERIC,