git.sesse.net Git - vlc/blob - modules/stream_out/bridge.c

   1 /*****************************************************************************
   2  * bridge.c: bridge stream output module
   3  *****************************************************************************
   4  * Copyright (C) 2005-2008 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Christophe Massiot <massiot@via.ecp.fr>
   8  *          Antoine Cellerier <dionoea at videolan dot org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include <vlc_common.h>
  34 #include <vlc_plugin.h>
  35 #include <vlc_sout.h>
  36 #include <vlc_block.h>
  37
  38 /*****************************************************************************
  39  * Module descriptor
  40  *****************************************************************************/
  41 #define ID_TEXT N_("ID")
  42 #define ID_LONGTEXT N_( \
  43     "Integer identifier for this elementary stream. This will be used to " \
  44     "\"find\" this stream later." )
  45
  46 #define DEST_TEXT N_( "Destination bridge-in name" )
  47 #define DEST_LONGTEXT N_( \
  48     "Name of the destination bridge-in. If you do not need more " \
  49     "than one bridge-in at a time, you can discard this option." )
  50
  51 #define DELAY_TEXT N_("Delay")
  52 #define DELAY_LONGTEXT N_("Pictures coming from the picture video outputs " \
  53         "will be delayed according to this value (in milliseconds, should be "\
  54         ">= 100 ms). For high values, you will need to raise caching values." )
  55
  56 #define ID_OFFSET_TEXT N_("ID Offset")
  57 #define ID_OFFSET_LONGTEXT N_("Offset to add to the stream IDs specified in " \
  58         "bridge_out to obtain the stream IDs bridge_in will register.")
  59
  60 #define NAME_TEXT N_( "Name of current instance" )
  61 #define NAME_LONGTEXT N_( \
  62     "Name of this bridge-in instance. If you do not need more " \
  63     "than one bridge-in at a time, you can discard this option." )
  64
  65 #define PLACEHOLDER_TEXT N_( "Fallback to placeholder stream when out of data" )
  66 #define PLACEHOLDER_LONGTEXT N_( \
  67     "If set to true, the bridge will discard all input elementary streams " \
  68     "except if it doesn't receive data from another bridge-in. This can " \
  69     "be used to configure a place holder stream when the real source " \
  70     "breaks. Source and placeholder streams should have the same format. " )
  71
  72 #define PLACEHOLDER_DELAY_TEXT N_( "Place holder delay" )
  73 #define PLACEHOLDER_DELAY_LONGTEXT N_( \
  74     "Delay (in ms) before the place holder kicks in." )
  75
  76 static int  OpenOut ( vlc_object_t * );
  77 static void CloseOut( vlc_object_t * );
  78 static int  OpenIn  ( vlc_object_t * );
  79 static void CloseIn ( vlc_object_t * );
  80
  81 #define SOUT_CFG_PREFIX_OUT "sout-bridge-out-"
  82 #define SOUT_CFG_PREFIX_IN "sout-bridge-in-"
  83
  84 vlc_module_begin();
  85     set_shortname( N_("Bridge"));
  86     set_description( N_("Bridge stream output"));
  87     add_submodule();
  88     set_section( N_("Bridge out"), NULL );
  89     set_capability( "sout stream", 50 );
  90     add_shortcut( "bridge-out" );
  91     /* Only usable with VLM. No category so not in gui preferences
  92     set_category( CAT_SOUT );
  93     set_subcategory( SUBCAT_SOUT_STREAM );*/
  94     add_integer( SOUT_CFG_PREFIX_OUT "id", 0, NULL, ID_TEXT, ID_LONGTEXT,
  95                  false );
  96     add_string( SOUT_CFG_PREFIX_OUT "in-name", "default", NULL,
  97                 DEST_TEXT, DEST_LONGTEXT, false );
  98     set_callbacks( OpenOut, CloseOut );
  99
 100     add_submodule();
 101     set_section( N_("Bridge in"), NULL );
 102     set_capability( "sout stream", 50 );
 103     add_shortcut( "bridge-in" );
 104     /*set_category( CAT_SOUT );
 105     set_subcategory( SUBCAT_SOUT_STREAM );*/
 106     add_integer( SOUT_CFG_PREFIX_IN "delay", 0, NULL, DELAY_TEXT,
 107                  DELAY_LONGTEXT, false );
 108     add_integer( SOUT_CFG_PREFIX_IN "id-offset", 8192, NULL, ID_OFFSET_TEXT,
 109                  ID_OFFSET_LONGTEXT, false );
 110     add_string( SOUT_CFG_PREFIX_IN "name", "default", NULL,
 111                 NAME_TEXT, NAME_LONGTEXT, false );
 112     add_bool( SOUT_CFG_PREFIX_IN "placeholder", false, NULL,
 113               PLACEHOLDER_TEXT, PLACEHOLDER_LONGTEXT, false );
 114     add_integer( SOUT_CFG_PREFIX_IN "placeholder-delay", 200, NULL,
 115                  PLACEHOLDER_DELAY_TEXT, PLACEHOLDER_DELAY_LONGTEXT, false );
 116     set_callbacks( OpenIn, CloseIn );
 117
 118 vlc_module_end();
 119
 120
 121 /*****************************************************************************
 122  * Local prototypes
 123  *****************************************************************************/
 124 static const char *const ppsz_sout_options_out[] = {
 125     "id", "in-name", NULL
 126 };
 127
 128 static const char *const ppsz_sout_options_in[] = {
 129     "delay", "id-offset", "name", "placeholder", "placeholder-delay", NULL
 130 };
 131
 132 static sout_stream_id_t *AddOut ( sout_stream_t *, es_format_t * );
 133 static int               DelOut ( sout_stream_t *, sout_stream_id_t * );
 134 static int               SendOut( sout_stream_t *, sout_stream_id_t *, block_t * );
 135
 136 static sout_stream_id_t *AddIn ( sout_stream_t *, es_format_t * );
 137 static int               DelIn ( sout_stream_t *, sout_stream_id_t * );
 138 static int               SendIn( sout_stream_t *, sout_stream_id_t *, block_t * );
 139
 140 typedef struct bridged_es_t
 141 {
 142     es_format_t fmt;
 143     block_t *p_block;
 144     block_t **pp_last;
 145     bool b_empty;
 146
 147     /* bridge in part */
 148     sout_stream_id_t *id;
 149     mtime_t i_last;
 150     bool b_changed;
 151 } bridged_es_t;
 152
 153 typedef struct bridge_t
 154 {
 155     bridged_es_t **pp_es;
 156     int i_es_num;
 157 } bridge_t;
 158
 159 #define GetBridge(a,b) __GetBridge( VLC_OBJECT(a), b )
 160 static bridge_t *__GetBridge( vlc_object_t *p_object, const char *psz_name )
 161 {
 162     bridge_t *p_bridge;
 163     vlc_value_t val;
 164
 165     if( var_Get( p_object->p_libvlc, psz_name, &val ) )
 166     {
 167         p_bridge = NULL;
 168     }
 169     else
 170     {
 171         p_bridge = val.p_address;
 172     }
 173
 174     return p_bridge;
 175 }
 176
 177
 178 /*
 179  * Bridge out
 180  */
 181
 182 typedef struct out_sout_stream_sys_t
 183 {
 184     vlc_mutex_t *p_lock;
 185     bridged_es_t *p_es;
 186     int i_id;
 187     bool b_inited;
 188
 189     char *psz_name;
 190 } out_sout_stream_sys_t;
 191
 192 /*****************************************************************************
 193  * OpenOut:
 194  *****************************************************************************/
 195 static int OpenOut( vlc_object_t *p_this )
 196 {
 197     sout_stream_t     *p_stream = (sout_stream_t *)p_this;
 198     out_sout_stream_sys_t *p_sys;
 199     vlc_value_t val;
 200
 201     config_ChainParse( p_stream, SOUT_CFG_PREFIX_OUT, ppsz_sout_options_out,
 202                    p_stream->p_cfg );
 203
 204     p_sys          = malloc( sizeof( out_sout_stream_sys_t ) );
 205     p_sys->b_inited = false;
 206
 207     var_Create( p_this->p_libvlc, "bridge-lock", VLC_VAR_MUTEX );
 208     var_Get( p_this->p_libvlc, "bridge-lock", &val );
 209     p_sys->p_lock = val.p_address;
 210
 211     var_Get( p_stream, SOUT_CFG_PREFIX_OUT "id", &val );
 212     p_sys->i_id = val.i_int;
 213
 214     var_Get( p_stream, SOUT_CFG_PREFIX_OUT "in-name", &val );
 215     if( asprintf( &p_sys->psz_name, "bridge-struct-%s", val.psz_string )<0 )
 216     {
 217         free( val.psz_string );
 218         free( p_sys );
 219         return VLC_ENOMEM;
 220     }
 221     free( val.psz_string );
 222
 223     p_stream->pf_add    = AddOut;
 224     p_stream->pf_del    = DelOut;
 225     p_stream->pf_send   = SendOut;
 226
 227     p_stream->p_sys     = (sout_stream_sys_t *)p_sys;
 228
 229     p_stream->p_sout->i_out_pace_nocontrol++;
 230
 231     return VLC_SUCCESS;
 232 }
 233
 234 /*****************************************************************************
 235  * CloseOut:
 236  *****************************************************************************/
 237 static void CloseOut( vlc_object_t * p_this )
 238 {
 239     sout_stream_t     *p_stream = (sout_stream_t*)p_this;
 240     out_sout_stream_sys_t *p_sys = (out_sout_stream_sys_t *)p_stream->p_sys;
 241
 242     p_stream->p_sout->i_out_pace_nocontrol--;
 243
 244     free( p_sys->psz_name );
 245     free( p_sys );
 246 }
 247
 248 static sout_stream_id_t * AddOut( sout_stream_t *p_stream, es_format_t *p_fmt )
 249 {
 250     out_sout_stream_sys_t *p_sys = (out_sout_stream_sys_t *)p_stream->p_sys;
 251     bridge_t *p_bridge;
 252     bridged_es_t *p_es;
 253     int i;
 254
 255     if ( p_sys->b_inited )
 256     {
 257         return NULL;
 258     }
 259     p_sys->b_inited = true;
 260
 261     vlc_mutex_lock( p_sys->p_lock );
 262
 263     p_bridge = GetBridge( p_stream, p_sys->psz_name );
 264     if ( p_bridge == NULL )
 265     {
 266         vlc_object_t *p_libvlc = VLC_OBJECT( p_stream->p_libvlc );
 267         vlc_value_t val;
 268
 269         p_bridge = malloc( sizeof( bridge_t ) );
 270
 271         var_Create( p_libvlc, p_sys->psz_name, VLC_VAR_ADDRESS );
 272         val.p_address = p_bridge;
 273         var_Set( p_libvlc, p_sys->psz_name, val );
 274
 275         p_bridge->i_es_num = 0;
 276         p_bridge->pp_es = NULL;
 277     }
 278
 279     for ( i = 0; i < p_bridge->i_es_num; i++ )
 280     {
 281         if ( p_bridge->pp_es[i]->b_empty && !p_bridge->pp_es[i]->b_changed )
 282             break;
 283     }
 284
 285     if ( i == p_bridge->i_es_num )
 286     {
 287         p_bridge->pp_es = realloc( p_bridge->pp_es,
 288                                    (p_bridge->i_es_num + 1)
 289                                      * sizeof(bridged_es_t *) );
 290         p_bridge->i_es_num++;
 291         p_bridge->pp_es[i] = malloc( sizeof(bridged_es_t) );
 292     }
 293
 294     p_sys->p_es = p_es = p_bridge->pp_es[i];
 295
 296     p_es->fmt = *p_fmt;
 297     p_es->fmt.i_id = p_sys->i_id;
 298     p_es->p_block = NULL;
 299     p_es->pp_last = &p_es->p_block;
 300     p_es->b_empty = false;
 301
 302     p_es->id = NULL;
 303     p_es->i_last = 0;
 304     p_es->b_changed = true;
 305
 306     msg_Dbg( p_stream, "bridging out input codec=%4.4s id=%d pos=%d",
 307              (char*)&p_es->fmt.i_codec, p_es->fmt.i_id, i );
 308
 309     vlc_mutex_unlock( p_sys->p_lock );
 310
 311     return (sout_stream_id_t *)p_sys;
 312 }
 313
 314 static int DelOut( sout_stream_t *p_stream, sout_stream_id_t *id )
 315 {
 316     VLC_UNUSED(id);
 317     out_sout_stream_sys_t *p_sys = (out_sout_stream_sys_t *)p_stream->p_sys;
 318     bridged_es_t *p_es;
 319
 320     if ( !p_sys->b_inited )
 321     {
 322         return VLC_SUCCESS;
 323     }
 324
 325     vlc_mutex_lock( p_sys->p_lock );
 326
 327     p_es = p_sys->p_es;
 328
 329     p_es->b_empty = true;
 330     block_ChainRelease( p_es->p_block );
 331     p_es->p_block = false;
 332
 333     p_es->b_changed = true;
 334     vlc_mutex_unlock( p_sys->p_lock );
 335
 336     p_sys->b_inited = false;
 337
 338     return VLC_SUCCESS;
 339 }
 340
 341 static int SendOut( sout_stream_t *p_stream, sout_stream_id_t *id,
 342                     block_t *p_buffer )
 343 {
 344     out_sout_stream_sys_t *p_sys = (out_sout_stream_sys_t *)p_stream->p_sys;
 345     bridged_es_t *p_es;
 346
 347     if ( (out_sout_stream_sys_t *)id != p_sys )
 348     {
 349         block_ChainRelease( p_buffer );
 350         return VLC_SUCCESS;
 351     }
 352
 353     vlc_mutex_lock( p_sys->p_lock );
 354
 355     p_es = p_sys->p_es;
 356     *p_es->pp_last = p_buffer;
 357     while ( p_buffer != NULL )
 358     {
 359         p_es->pp_last = &p_buffer->p_next;
 360         p_buffer = p_buffer->p_next;
 361     }
 362
 363     vlc_mutex_unlock( p_sys->p_lock );
 364
 365     return VLC_SUCCESS;
 366 }
 367
 368
 369 /*
 370  * Bridge in
 371  */
 372
 373 typedef struct in_sout_stream_sys_t
 374 {
 375     sout_stream_t *p_out;
 376     vlc_mutex_t *p_lock;
 377     int i_id_offset;
 378     mtime_t i_delay;
 379
 380     char *psz_name;
 381
 382     bool b_placeholder;
 383     mtime_t i_placeholder_delay;
 384     sout_stream_id_t *id_video;
 385     mtime_t i_last_video;
 386     sout_stream_id_t *id_audio;
 387     mtime_t i_last_audio;
 388 } in_sout_stream_sys_t;
 389
 390 /*****************************************************************************
 391  * OpenIn:
 392  *****************************************************************************/
 393 static int OpenIn( vlc_object_t *p_this )
 394 {
 395     sout_stream_t     *p_stream = (sout_stream_t*)p_this;
 396     in_sout_stream_sys_t *p_sys;
 397     vlc_value_t val;
 398
 399     p_sys          = malloc( sizeof( in_sout_stream_sys_t ) );
 400
 401     p_sys->p_out = sout_StreamNew( p_stream->p_sout, p_stream->psz_next );
 402     if( !p_sys->p_out )
 403     {
 404         msg_Err( p_stream, "cannot create chain" );
 405         free( p_sys );
 406         return VLC_EGENERIC;
 407     }
 408
 409     config_ChainParse( p_stream, SOUT_CFG_PREFIX_IN, ppsz_sout_options_in,
 410                    p_stream->p_cfg );
 411
 412     var_Create( p_this->p_libvlc, "bridge-lock", VLC_VAR_MUTEX );
 413     var_Get( p_this->p_libvlc, "bridge-lock", &val );
 414     p_sys->p_lock = val.p_address;
 415
 416     var_Get( p_stream, SOUT_CFG_PREFIX_IN "id-offset", &val );
 417     p_sys->i_id_offset = val.i_int;
 418
 419     var_Get( p_stream, SOUT_CFG_PREFIX_IN "delay", &val );
 420     p_sys->i_delay = (mtime_t)val.i_int * 1000;
 421
 422     var_Get( p_stream, SOUT_CFG_PREFIX_IN "name", &val );
 423     if( asprintf( &p_sys->psz_name, "bridge-struct-%s", val.psz_string )<0 )
 424     {
 425         free( val.psz_string );
 426         free( p_sys );
 427         return VLC_ENOMEM;
 428     }
 429     free( val.psz_string );
 430
 431     var_Get( p_stream, SOUT_CFG_PREFIX_IN "placeholder", &val );
 432     p_sys->b_placeholder = val.b_bool;
 433
 434     var_Get( p_stream, SOUT_CFG_PREFIX_IN "placeholder-delay", &val );
 435     p_sys->i_placeholder_delay = (mtime_t)val.i_int * 1000;
 436
 437     p_sys->i_last_video = 0;
 438     p_sys->i_last_audio = 0;
 439     p_sys->id_video = NULL;
 440     p_sys->id_audio = NULL;
 441
 442     p_stream->pf_add    = AddIn;
 443     p_stream->pf_del    = DelIn;
 444     p_stream->pf_send   = SendIn;
 445
 446     p_stream->p_sys     = (sout_stream_sys_t *)p_sys;
 447
 448     /* update p_sout->i_out_pace_nocontrol */
 449     p_stream->p_sout->i_out_pace_nocontrol++;
 450
 451     return VLC_SUCCESS;
 452 }
 453
 454 /*****************************************************************************
 455  * CloseIn:
 456  *****************************************************************************/
 457 static void CloseIn( vlc_object_t * p_this )
 458 {
 459     sout_stream_t     *p_stream = (sout_stream_t*)p_this;
 460     in_sout_stream_sys_t *p_sys = (in_sout_stream_sys_t *)p_stream->p_sys;
 461
 462     sout_StreamDelete( p_sys->p_out );
 463     p_stream->p_sout->i_out_pace_nocontrol--;
 464
 465     free( p_sys->psz_name );
 466     free( p_sys );
 467 }
 468
 469 struct sout_stream_id_t
 470 {
 471     sout_stream_id_t *id;
 472     int i_cat; /* es category. Used for placeholder option */
 473 };
 474
 475 static sout_stream_id_t * AddIn( sout_stream_t *p_stream, es_format_t *p_fmt )
 476 {
 477     in_sout_stream_sys_t *p_sys = (in_sout_stream_sys_t *)p_stream->p_sys;
 478
 479     sout_stream_id_t *id = malloc( sizeof( sout_stream_id_t ) );
 480     if( !id ) return NULL;
 481
 482     id->id = p_sys->p_out->pf_add( p_sys->p_out, p_fmt );
 483     if( !id->id )
 484     {
 485         free( id );
 486         return NULL;
 487     }
 488
 489     if( p_sys->b_placeholder )
 490     {
 491         id->i_cat = p_fmt->i_cat;
 492         switch( p_fmt->i_cat )
 493         {
 494             case VIDEO_ES:
 495                 if( p_sys->id_video != NULL )
 496                     msg_Err( p_stream, "We already had a video es!" );
 497                 p_sys->id_video = id->id;
 498                 break;
 499             case AUDIO_ES:
 500                 if( p_sys->id_audio != NULL )
 501                     msg_Err( p_stream, "We already had an audio es!" );
 502                 p_sys->id_audio = id->id;
 503                 break;
 504         }
 505     }
 506
 507     return id;
 508 }
 509
 510 static int DelIn( sout_stream_t *p_stream, sout_stream_id_t *id )
 511 {
 512     in_sout_stream_sys_t *p_sys = (in_sout_stream_sys_t *)p_stream->p_sys;
 513
 514     if( id == p_sys->id_video ) p_sys->id_video = NULL;
 515     if( id == p_sys->id_audio ) p_sys->id_audio = NULL;
 516
 517     int ret = p_sys->p_out->pf_del( p_sys->p_out, id->id );
 518
 519     free( id );
 520     return ret;
 521 }
 522
 523 static int SendIn( sout_stream_t *p_stream, sout_stream_id_t *id,
 524                    block_t *p_buffer )
 525 {
 526     in_sout_stream_sys_t *p_sys = (in_sout_stream_sys_t *)p_stream->p_sys;
 527     bridge_t *p_bridge;
 528     bool b_no_es = true;
 529     int i;
 530     int i_date = mdate();
 531
 532     /* First forward the packet for our own ES */
 533     if( !p_sys->b_placeholder )
 534         p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer );
 535
 536     /* Then check all bridged streams */
 537     vlc_mutex_lock( p_sys->p_lock );
 538
 539     p_bridge = GetBridge( p_stream, p_sys->psz_name );
 540
 541     if( p_bridge )
 542     {
 543     for ( i = 0; i < p_bridge->i_es_num; i++ )
 544     {
 545         if ( !p_bridge->pp_es[i]->b_empty )
 546             b_no_es = false;
 547
 548         while ( p_bridge->pp_es[i]->p_block != NULL
 549                  && (p_bridge->pp_es[i]->p_block->i_dts + p_sys->i_delay
 550                        < i_date
 551                       || p_bridge->pp_es[i]->p_block->i_dts + p_sys->i_delay
 552                           < p_bridge->pp_es[i]->i_last) )
 553         {
 554             block_t *p_block = p_bridge->pp_es[i]->p_block;
 555             msg_Dbg( p_stream, "dropping a packet (%"PRId64 ")",
 556                      i_date - p_block->i_dts - p_sys->i_delay );
 557             p_bridge->pp_es[i]->p_block
 558                 = p_bridge->pp_es[i]->p_block->p_next;
 559             block_Release( p_block );
 560         }
 561
 562         if ( p_bridge->pp_es[i]->p_block == NULL )
 563         {
 564             p_bridge->pp_es[i]->pp_last = &p_bridge->pp_es[i]->p_block;
 565         }
 566
 567         if ( p_bridge->pp_es[i]->b_changed )
 568         {
 569             if ( p_bridge->pp_es[i]->b_empty && p_bridge->pp_es[i]->id != NULL )
 570             {
 571                 p_sys->p_out->pf_del( p_sys->p_out, p_bridge->pp_es[i]->id );
 572             }
 573             else
 574             {
 575                 /* We need at least two packets to enter the mux. */
 576                 if ( p_bridge->pp_es[i]->p_block == NULL
 577                       || p_bridge->pp_es[i]->p_block->p_next == NULL )
 578                 {
 579                     continue;
 580                 }
 581
 582                 p_bridge->pp_es[i]->fmt.i_id += p_sys->i_id_offset;
 583                 p_bridge->pp_es[i]->id = p_sys->p_out->pf_add(
 584                             p_sys->p_out, &p_bridge->pp_es[i]->fmt );
 585                 if ( p_bridge->pp_es[i]->id == NULL )
 586                 {
 587                     msg_Warn( p_stream, "couldn't create chain for id %d",
 588                               p_bridge->pp_es[i]->fmt.i_id );
 589                 }
 590                 msg_Dbg( p_stream, "bridging in input codec=%4.4s id=%d pos=%d",
 591                          (char*)&p_bridge->pp_es[i]->fmt.i_codec,
 592                          p_bridge->pp_es[i]->fmt.i_id, i );
 593             }
 594         }
 595         p_bridge->pp_es[i]->b_changed = false;
 596
 597         if ( p_bridge->pp_es[i]->b_empty )
 598             continue;
 599
 600         if ( p_bridge->pp_es[i]->p_block == NULL )
 601         {
 602             if ( p_bridge->pp_es[i]->id != NULL
 603                   && p_bridge->pp_es[i]->i_last < i_date )
 604             {
 605                 p_sys->p_out->pf_del( p_sys->p_out, p_bridge->pp_es[i]->id );
 606                 p_bridge->pp_es[i]->fmt.i_id -= p_sys->i_id_offset;
 607                 p_bridge->pp_es[i]->b_changed = true;
 608                 p_bridge->pp_es[i]->id = NULL;
 609             }
 610             continue;
 611         }
 612
 613         if ( p_bridge->pp_es[i]->id != NULL )
 614         {
 615             block_t *p_block = p_bridge->pp_es[i]->p_block;
 616             while ( p_block != NULL )
 617             {
 618                 p_bridge->pp_es[i]->i_last = p_block->i_dts;
 619                 p_block->i_pts += p_sys->i_delay;
 620                 p_block->i_dts += p_sys->i_delay;
 621                 p_block = p_block->p_next;
 622             }
 623             sout_stream_id_t *newid = NULL;
 624             if( p_sys->b_placeholder )
 625             {
 626                 switch( p_bridge->pp_es[i]->fmt.i_cat )
 627                 {
 628                     case VIDEO_ES:
 629                         p_sys->i_last_video = i_date;
 630                         newid = p_sys->id_video;
 631                         break;
 632                     case AUDIO_ES:
 633                         newid = p_sys->id_audio;
 634                         p_sys->i_last_audio = i_date;
 635                         break;
 636                 }
 637             }
 638             p_sys->p_out->pf_send( p_sys->p_out,
 639                                    newid ? newid : p_bridge->pp_es[i]->id,
 640                                    p_bridge->pp_es[i]->p_block );
 641         }
 642         else
 643         {
 644             block_ChainRelease( p_bridge->pp_es[i]->p_block );
 645         }
 646
 647         p_bridge->pp_es[i]->p_block = NULL;
 648         p_bridge->pp_es[i]->pp_last = &p_bridge->pp_es[i]->p_block;
 649     }
 650
 651     if( b_no_es )
 652     {
 653         vlc_object_t *p_libvlc = VLC_OBJECT( p_stream->p_libvlc );
 654         for ( i = 0; i < p_bridge->i_es_num; i++ )
 655             free( p_bridge->pp_es[i] );
 656         free( p_bridge->pp_es );
 657         free( p_bridge );
 658         var_Destroy( p_libvlc, p_sys->psz_name );
 659     }
 660     }
 661
 662     if( p_sys->b_placeholder )
 663     {
 664         switch( id->i_cat )
 665         {
 666             case VIDEO_ES:
 667                 if( p_sys->i_last_video + p_sys->i_placeholder_delay < i_date )
 668                     p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer );
 669                 else
 670                     block_Release( p_buffer );
 671                 break;
 672
 673             case AUDIO_ES:
 674                 if( p_sys->i_last_audio + p_sys->i_placeholder_delay < i_date )
 675                     p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer );
 676                 else
 677                     block_Release( p_buffer );
 678                 break;
 679
 680             default:
 681                 block_Release( p_buffer ); /* FIXME: placeholder subs anyone? */
 682                 break;
 683         }
 684     }
 685
 686     vlc_mutex_unlock( p_sys->p_lock );
 687
 688     return VLC_SUCCESS;
 689 }