src/input/input.c

   1 /*****************************************************************************
   2  * input.c: input thread
   3  * Read an MPEG2 stream, demultiplex and parse it before sending it to
   4  * decoders.
   5  *****************************************************************************
   6  * Copyright (C) 1998, 1999, 2000 VideoLAN
   7  * $Id: input.c,v 1.124 2001/06/21 07:22:03 sam Exp $
   8  *
   9  * Authors: Christophe Massiot <massiot@via.ecp.fr>
  10  *
  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.
  15  *
  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.
  20  *
  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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #include "defs.h"
  30
  31 #include <stdlib.h>
  32 #include <sys/types.h>
  33 #include <sys/stat.h>
  34 #include <fcntl.h>
  35
  36 #ifdef HAVE_UNISTD_H
  37 #   include <unistd.h>
  38 #elif defined( _MSC_VER ) && defined( _WIN32 )
  39 #   include <io.h>
  40 #endif
  41
  42 #include <string.h>
  43 #include <errno.h>
  44
  45 #ifdef STRNCASECMP_IN_STRINGS_H
  46 #   include <strings.h>
  47 #endif
  48
  49 #ifdef WIN32
  50 #   include <winsock2.h>
  51 #elif !defined( SYS_BEOS ) && !defined( SYS_NTO )
  52 #   include <netdb.h>                                         /* hostent ... */
  53 #   include <sys/socket.h>
  54 #   include <netinet/in.h>
  55 #   include <arpa/inet.h>
  56 #   include <sys/types.h>
  57 #   include <sys/socket.h>
  58 #endif
  59
  60 #ifdef STATS
  61 #   include <sys/times.h>
  62 #endif
  63
  64 #include "config.h"
  65 #include "common.h"
  66 #include "threads.h"
  67 #include "mtime.h"
  68 #include "netutils.h"
  69 #include "modules.h"
  70
  71 #include "intf_msg.h"
  72 #include "intf_playlist.h"
  73
  74 #include "stream_control.h"
  75 #include "input_ext-intf.h"
  76 #include "input_ext-dec.h"
  77
  78 #include "input.h"
  79 #include "interface.h"
  80
  81 #include "main.h"
  82
  83 /*****************************************************************************
  84  * Local prototypes
  85  *****************************************************************************/
  86 static void RunThread       ( input_thread_t *p_input );
  87 static  int InitThread      ( input_thread_t *p_input );
  88 static void ErrorThread     ( input_thread_t *p_input );
  89 static void DestroyThread   ( input_thread_t *p_input );
  90 static void EndThread       ( input_thread_t *p_input );
  91
  92 static void FileOpen        ( input_thread_t *p_input );
  93 static void FileClose       ( input_thread_t *p_input );
  94 #if !defined( SYS_BEOS ) && !defined( SYS_NTO )
  95 static void NetworkOpen     ( input_thread_t *p_input );
  96 static void NetworkClose    ( input_thread_t *p_input );
  97 #endif
  98
  99 /*****************************************************************************
 100  * input_CreateThread: creates a new input thread
 101  *****************************************************************************
 102  * This function creates a new input, and returns a pointer
 103  * to its description. On error, it returns NULL.
 104  * If pi_status is NULL, then the function will block until the thread is ready.
 105  * If not, it will be updated using one of the THREAD_* constants.
 106  *****************************************************************************/
 107 input_thread_t *input_CreateThread ( playlist_item_t *p_item, int *pi_status )
 108 {
 109     input_thread_t *    p_input;                        /* thread descriptor */
 110     int                 i_status;                           /* thread status */
 111
 112     /* Allocate descriptor */
 113     p_input = (input_thread_t *)malloc( sizeof(input_thread_t) );
 114     if( p_input == NULL )
 115     {
 116         intf_ErrMsg( "input error: can't allocate input thread (%s)",
 117                      strerror(errno) );
 118         return( NULL );
 119     }
 120
 121     /* Packets read once */
 122     p_input->i_read_once = INPUT_READ_ONCE;
 123
 124     /* Initialize thread properties */
 125     p_input->b_die              = 0;
 126     p_input->b_error            = 0;
 127     p_input->b_eof              = 0;
 128
 129     /* Set target */
 130     p_input->p_source           = p_item->psz_name;
 131
 132     /* I have never understood that stuff --Meuuh */
 133     p_input->pi_status          = (pi_status != NULL) ? pi_status : &i_status;
 134     *p_input->pi_status         = THREAD_CREATE;
 135
 136     /* Initialize stream description */
 137     p_input->stream.i_es_number = 0;
 138     p_input->stream.i_selected_es_number = 0;
 139     p_input->stream.i_pgrm_number = 0;
 140     p_input->stream.i_new_status = p_input->stream.i_new_rate = 0;
 141     p_input->stream.i_mux_rate = 0;
 142
 143     /* no stream, no area */
 144     p_input->stream.i_area_nb = 0;
 145     p_input->stream.pp_areas = NULL;
 146     p_input->stream.p_selected_area = NULL;
 147     p_input->stream.p_new_area = NULL;
 148
 149     /* By default there is one area in a stream */
 150     input_AddArea( p_input );
 151     p_input->stream.p_selected_area = p_input->stream.pp_areas[0];
 152
 153     /* Initialize stream control properties. */
 154     p_input->stream.control.i_status = PLAYING_S;
 155     p_input->stream.control.i_rate = DEFAULT_RATE;
 156     p_input->stream.control.b_mute = 0;
 157     p_input->stream.control.b_bw = 0;
 158
 159     /* Setup callbacks */
 160     p_input->pf_file_open     = FileOpen;
 161     p_input->pf_file_close    = FileClose;
 162 #if !defined( SYS_BEOS ) && !defined( SYS_NTO )
 163     p_input->pf_network_open  = NetworkOpen;
 164     p_input->pf_network_close = NetworkClose;
 165 #endif
 166
 167     /* Create thread. */
 168     if( vlc_thread_create( &p_input->thread_id, "input", (void *) RunThread,
 169                            (void *) p_input ) )
 170     {
 171         intf_ErrMsg( "input error: can't create input thread (%s)",
 172                      strerror(errno) );
 173         free( p_input );
 174         return( NULL );
 175     }
 176
 177     /* If status is NULL, wait until the thread is created */
 178     if( pi_status == NULL )
 179     {
 180         do
 181         {
 182             msleep( THREAD_SLEEP );
 183         } while( (i_status != THREAD_READY) && (i_status != THREAD_ERROR)
 184                 && (i_status != THREAD_FATAL) );
 185         if( i_status != THREAD_READY )
 186         {
 187             return( NULL );
 188         }
 189     }
 190     return( p_input );
 191 }
 192
 193 /*****************************************************************************
 194  * input_DestroyThread: mark an input thread as zombie
 195  *****************************************************************************
 196  * This function should not return until the thread is effectively cancelled.
 197  *****************************************************************************/
 198 void input_DestroyThread( input_thread_t *p_input, int *pi_status )
 199 {
 200     int         i_status;                                   /* thread status */
 201
 202     /* Set status */
 203     p_input->pi_status = (pi_status != NULL) ? pi_status : &i_status;
 204     *p_input->pi_status = THREAD_DESTROY;
 205
 206     /* Request thread destruction */
 207     p_input->b_die = 1;
 208
 209     /* Make the thread exit of an eventual vlc_cond_wait() */
 210     vlc_mutex_lock( &p_input->stream.stream_lock );
 211     vlc_cond_signal( &p_input->stream.stream_wait );
 212     vlc_mutex_unlock( &p_input->stream.stream_lock );
 213
 214     /* If status is NULL, wait until thread has been destroyed */
 215     if( pi_status == NULL )
 216     {
 217         do
 218         {
 219             msleep( THREAD_SLEEP );
 220         } while ( (i_status != THREAD_OVER) && (i_status != THREAD_ERROR)
 221                   && (i_status != THREAD_FATAL) );
 222     }
 223 }
 224
 225 /*****************************************************************************
 226  * RunThread: main thread loop
 227  *****************************************************************************
 228  * Thread in charge of processing the network packets and demultiplexing.
 229  *****************************************************************************/
 230 static void RunThread( input_thread_t *p_input )
 231 {
 232     int                     i_error, i;
 233     data_packet_t **        pp_packets;
 234
 235     if( InitThread( p_input ) )
 236     {
 237
 238         /* If we failed, wait before we are killed, and exit */
 239         *p_input->pi_status = THREAD_ERROR;
 240         p_input->b_error = 1;
 241         ErrorThread( p_input );
 242         DestroyThread( p_input );
 243         free( p_input );
 244         return;
 245     }
 246
 247     /* initialization is completed */
 248     vlc_mutex_lock( &p_input->stream.stream_lock );
 249     p_input->stream.b_changed = 1;
 250     vlc_mutex_unlock( &p_input->stream.stream_lock );
 251
 252     pp_packets = (data_packet_t **) malloc( p_input->i_read_once *
 253                                         sizeof( data_packet_t * ) );
 254     if( pp_packets == NULL )
 255     {
 256         intf_ErrMsg( "input error: out of memory" );
 257         free( pp_packets );
 258         p_input->b_error = 1;
 259     }
 260
 261     while( !p_input->b_die && !p_input->b_error && !p_input->b_eof )
 262     {
 263 #ifdef STATS
 264         p_input->c_loops++;
 265 #endif
 266
 267         vlc_mutex_lock( &p_input->stream.stream_lock );
 268
 269         if( p_input->stream.p_new_area )
 270         {
 271             if( p_input->stream.b_seekable && p_input->pf_set_area != NULL )
 272             {
 273
 274                 p_input->pf_set_area( p_input, p_input->stream.p_new_area );
 275
 276                 for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
 277                 {
 278                     pgrm_descriptor_t * p_pgrm
 279                                             = p_input->stream.pp_programs[i];
 280                     /* Escape all decoders for the stream discontinuity they
 281                      * will encounter. */
 282                     input_EscapeDiscontinuity( p_input, p_pgrm );
 283
 284                     /* Reinitialize synchro. */
 285                     p_pgrm->i_synchro_state = SYNCHRO_REINIT;
 286                 }
 287             }
 288             p_input->stream.p_new_area = NULL;
 289         }
 290
 291         if( p_input->stream.p_selected_area->i_seek != NO_SEEK )
 292         {
 293             if( p_input->stream.b_seekable && p_input->pf_seek != NULL )
 294             {
 295                 p_input->pf_seek( p_input,
 296                                   p_input->stream.p_selected_area->i_seek );
 297
 298                 for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
 299                 {
 300                     pgrm_descriptor_t * p_pgrm
 301                                             = p_input->stream.pp_programs[i];
 302                     /* Escape all decoders for the stream discontinuity they
 303                      * will encounter. */
 304                     input_EscapeDiscontinuity( p_input, p_pgrm );
 305
 306                     /* Reinitialize synchro. */
 307                     p_pgrm->i_synchro_state = SYNCHRO_REINIT;
 308                 }
 309             }
 310             p_input->stream.p_selected_area->i_seek = NO_SEEK;
 311         }
 312
 313         if( p_input->stream.p_removed_es )
 314         {
 315             input_UnselectES( p_input, p_input->stream.p_removed_es );
 316             p_input->stream.p_removed_es = NULL;
 317         }
 318
 319         if( p_input->stream.p_newly_selected_es )
 320         {
 321             input_SelectES( p_input, p_input->stream.p_newly_selected_es );
 322             p_input->stream.p_newly_selected_es = NULL;
 323         }
 324
 325         vlc_mutex_unlock( &p_input->stream.stream_lock );
 326
 327         i_error = p_input->pf_read( p_input, pp_packets );
 328
 329         /* Demultiplex read packets. */
 330         for( i = 0; i < p_input->i_read_once && pp_packets[i] != NULL; i++ )
 331         {
 332             p_input->pf_demux( p_input, pp_packets[i] );
 333         }
 334
 335         if( i_error )
 336         {
 337             if( i_error == 1 )
 338             {
 339                 /* End of file - we do not set b_die because only the
 340                  * interface is allowed to do so. */
 341                 intf_WarnMsg( 3, "input: EOF reached" );
 342                 p_input->b_eof = 1;
 343             }
 344             else
 345             {
 346                 p_input->b_error = 1;
 347             }
 348         }
 349     }
 350
 351     free( pp_packets );
 352
 353     if( p_input->b_error || p_input->b_eof )
 354     {
 355         ErrorThread( p_input );
 356     }
 357
 358     EndThread( p_input );
 359
 360     DestroyThread( p_input );
 361
 362     intf_DbgMsg("input: Thread end");
 363 }
 364
 365 /*****************************************************************************
 366  * InitThread: init the input Thread
 367  *****************************************************************************/
 368 static int InitThread( input_thread_t * p_input )
 369 {
 370
 371 #ifdef STATS
 372     /* Initialize statistics */
 373     p_input->c_loops                    = 0;
 374     p_input->c_bytes                    = 0;
 375     p_input->c_payload_bytes            = 0;
 376     p_input->c_packets_read             = 0;
 377     p_input->c_packets_trashed          = 0;
 378 #endif
 379
 380     /* Set locks. */
 381     vlc_mutex_init( &p_input->stream.stream_lock );
 382     vlc_cond_init( &p_input->stream.stream_wait );
 383     vlc_mutex_init( &p_input->stream.control.control_lock );
 384
 385     /* Default, might get overwritten */
 386     p_input->pf_open = p_input->pf_file_open;
 387     p_input->pf_close = p_input->pf_file_close;
 388
 389     p_input->p_input_module = module_Need( MODULE_CAPABILITY_INPUT,
 390                                            (probedata_t *)p_input );
 391
 392     if( p_input->p_input_module == NULL )
 393     {
 394         intf_ErrMsg( "input error: no suitable input module for `%s'",
 395                      p_input->p_source );
 396         return( -1 );
 397     }
 398
 399 #define f p_input->p_input_module->p_functions->input.functions.input
 400     p_input->pf_init          = f.pf_init;
 401     if( f.pf_open != NULL )
 402     {
 403         p_input->pf_open          = f.pf_open;
 404     }
 405     if( f.pf_close != NULL )
 406     {
 407         p_input->pf_close         = f.pf_close;
 408     }
 409     p_input->pf_end           = f.pf_end;
 410     p_input->pf_read          = f.pf_read;
 411     p_input->pf_set_area      = f.pf_set_area;
 412     p_input->pf_demux         = f.pf_demux;
 413     p_input->pf_new_packet    = f.pf_new_packet;
 414     p_input->pf_new_pes       = f.pf_new_pes;
 415     p_input->pf_delete_packet = f.pf_delete_packet;
 416     p_input->pf_delete_pes    = f.pf_delete_pes;
 417     p_input->pf_rewind        = f.pf_rewind;
 418     p_input->pf_seek          = f.pf_seek;
 419 #undef f
 420
 421     /* We found the appropriate plugin, open the target */
 422     p_input->pf_open( p_input );
 423
 424     if( p_input->b_error )
 425     {
 426         /* We barfed -- exit nicely */
 427         module_Unneed( p_input->p_input_module );
 428         return( -1 );
 429     }
 430
 431     p_input->pf_init( p_input );
 432
 433     if( p_input->b_error )
 434     {
 435         /* We barfed -- exit nicely */
 436         p_input->pf_close( p_input );
 437         module_Unneed( p_input->p_input_module );
 438         return( -1 );
 439     }
 440
 441     *p_input->pi_status = THREAD_READY;
 442
 443     return( 0 );
 444 }
 445
 446 /*****************************************************************************
 447  * ErrorThread: RunThread() error loop
 448  *****************************************************************************
 449  * This function is called when an error occured during thread main's loop.
 450  *****************************************************************************/
 451 static void ErrorThread( input_thread_t *p_input )
 452 {
 453     while( !p_input->b_die )
 454     {
 455         /* Sleep a while */
 456         msleep( INPUT_IDLE_SLEEP );
 457     }
 458 }
 459
 460 /*****************************************************************************
 461  * EndThread: end the input thread
 462  *****************************************************************************/
 463 static void EndThread( input_thread_t * p_input )
 464 {
 465     int *       pi_status;                                  /* thread status */
 466
 467     /* Store status */
 468     pi_status = p_input->pi_status;
 469     *pi_status = THREAD_END;
 470
 471 #ifdef STATS
 472     {
 473         struct tms cpu_usage;
 474         times( &cpu_usage );
 475
 476         intf_Msg("input stats: cpu usage (user: %d, system: %d)",
 477                  cpu_usage.tms_utime, cpu_usage.tms_stime);
 478     }
 479 #endif
 480
 481     /* Free all ES and destroy all decoder threads */
 482     input_EndStream( p_input );
 483
 484     /* Free demultiplexer's data */
 485     p_input->pf_end( p_input );
 486
 487     /* Close stream */
 488     p_input->pf_close( p_input );
 489
 490     /* Release modules */
 491     module_Unneed( p_input->p_input_module );
 492
 493 }
 494
 495 /*****************************************************************************
 496  * DestroyThread: destroy the input thread
 497  *****************************************************************************/
 498 static void DestroyThread( input_thread_t * p_input )
 499 {
 500     int *       pi_status;                                  /* thread status */
 501
 502     /* Store status */
 503     pi_status = p_input->pi_status;
 504
 505     /* Destroy Mutex locks */
 506     vlc_mutex_destroy( &p_input->stream.control.control_lock );
 507     vlc_mutex_destroy( &p_input->stream.stream_lock );
 508
 509     /* Free input structure */
 510     free( p_input );
 511
 512     /* Update status */
 513     *pi_status = THREAD_OVER;
 514 }
 515
 516 /*****************************************************************************
 517  * FileOpen : open a file descriptor
 518  *****************************************************************************/
 519 static void FileOpen( input_thread_t * p_input )
 520 {
 521     struct stat         stat_info;
 522     int                 i_stat;
 523
 524     char *psz_name = p_input->p_source;
 525
 526     /* FIXME: this code ought to be in the plugin so that code can
 527      * be shared with the *_Probe function */
 528     if( ( i_stat = stat( psz_name, &stat_info ) ) == (-1) )
 529     {
 530         int i_size = strlen( psz_name );
 531
 532         if( ( i_size > 4 )
 533             && !strncasecmp( psz_name, "dvd:", 4 ) )
 534         {
 535             /* get rid of the 'dvd:' stuff and try again */
 536             psz_name += 4;
 537             i_stat = stat( psz_name, &stat_info );
 538         }
 539         else if( ( i_size > 5 )
 540                  && !strncasecmp( psz_name, "file:", 5 ) )
 541         {
 542             /* get rid of the 'file:' stuff and try again */
 543             psz_name += 5;
 544             i_stat = stat( psz_name, &stat_info );
 545         }
 546
 547         if( i_stat == (-1) )
 548         {
 549             intf_ErrMsg( "input error: cannot stat() file `%s' (%s)",
 550                          psz_name, strerror(errno));
 551             p_input->b_error = 1;
 552             return;
 553         }
 554     }
 555
 556     vlc_mutex_lock( &p_input->stream.stream_lock );
 557
 558     /* If we are here we can control the pace... */
 559     p_input->stream.b_pace_control = 1;
 560
 561     if( S_ISREG(stat_info.st_mode) || S_ISCHR(stat_info.st_mode)
 562          || S_ISBLK(stat_info.st_mode) )
 563     {
 564         p_input->stream.b_seekable = 1;
 565         p_input->stream.p_selected_area->i_size = stat_info.st_size;
 566     }
 567     else if( S_ISFIFO(stat_info.st_mode)
 568 #if !defined( SYS_BEOS ) && !defined( WIN32 )
 569              || S_ISSOCK(stat_info.st_mode)
 570 #endif
 571              )
 572     {
 573         p_input->stream.b_seekable = 0;
 574         p_input->stream.p_selected_area->i_size = 0;
 575     }
 576     else
 577     {
 578         vlc_mutex_unlock( &p_input->stream.stream_lock );
 579         intf_ErrMsg( "input error: unknown file type for `%s'",
 580                      psz_name );
 581         p_input->b_error = 1;
 582         return;
 583     }
 584
 585     p_input->stream.p_selected_area->i_tell = 0;
 586     vlc_mutex_unlock( &p_input->stream.stream_lock );
 587
 588     intf_WarnMsg( 1, "input: opening file `%s'", p_input->p_source );
 589 #if defined( WIN32 )
 590     if( (p_input->i_handle = open( psz_name, O_BINARY ) ) == (-1) )
 591 #else
 592     if( (p_input->i_handle = open( psz_name,
 593                                    /*O_NONBLOCK | O_LARGEFILE*/0 )) == (-1) )
 594 #endif
 595     {
 596         intf_ErrMsg( "input error: cannot open file (%s)", strerror(errno) );
 597         p_input->b_error = 1;
 598         return;
 599     }
 600
 601 }
 602
 603 /*****************************************************************************
 604  * FileClose : close a file descriptor
 605  *****************************************************************************/
 606 static void FileClose( input_thread_t * p_input )
 607 {
 608     intf_WarnMsg( 1, "input: closing file `%s'", p_input->p_source );
 609
 610     close( p_input->i_handle );
 611
 612     return;
 613 }
 614
 615 #if !defined( SYS_BEOS ) && !defined( SYS_NTO )
 616 /*****************************************************************************
 617  * NetworkOpen : open a network socket
 618  *****************************************************************************/
 619 static void NetworkOpen( input_thread_t * p_input )
 620 {
 621     char                *psz_server = NULL;
 622     char                *psz_broadcast = NULL;
 623     int                 i_port = 0;
 624     int                 i_opt;
 625     struct sockaddr_in  sock;
 626 #ifdef WIN32
 627     WSADATA Data;
 628     int i_err;
 629 #endif
 630
 631 #ifdef WIN32
 632     /* WinSock Library Init. */
 633     i_err = WSAStartup( MAKEWORD( 1, 1 ), &Data );
 634
 635     if( i_err )
 636     {
 637         intf_ErrMsg( "input: can't initiate WinSocks, error %i", i_err );
 638         return ;
 639     }
 640 #endif
 641
 642     /* Get the remote server */
 643     if( p_input->p_source != NULL )
 644     {
 645         psz_server = p_input->p_source;
 646
 647         /* Skip the protocol name */
 648         while( *psz_server && *psz_server != ':' )
 649         {
 650             psz_server++;
 651         }
 652
 653         /* Skip the "://" part */
 654         while( *psz_server && (*psz_server == ':' || *psz_server == '/') )
 655         {
 656             psz_server++;
 657         }
 658
 659         /* Found a server name */
 660         if( *psz_server )
 661         {
 662             char *psz_port = psz_server;
 663
 664             /* Skip the hostname part */
 665             while( *psz_port && *psz_port != ':' )
 666             {
 667                 psz_port++;
 668             }
 669
 670             /* Found a port name */
 671             if( *psz_port )
 672             {
 673                 /* Replace ':' with '\0' */
 674                 *psz_port = '\0';
 675                 psz_port++;
 676
 677                 psz_broadcast = psz_port;
 678                 while( *psz_broadcast && *psz_broadcast != ':' )
 679                 {
 680                     psz_broadcast++;
 681                 }
 682
 683                 if( *psz_broadcast )
 684                 {
 685                     *psz_broadcast = '\0';
 686                     psz_broadcast++;
 687                     while( *psz_broadcast && *psz_broadcast == ':' )
 688                     {
 689                         psz_broadcast++;
 690                     }
 691                 }
 692                 else
 693                 {
 694                     psz_broadcast = NULL;
 695                 }
 696
 697                 /* port before broadcast address */
 698                 if( *psz_port != ':' )
 699                 {
 700                     i_port = atoi( psz_port );
 701                 }
 702             }
 703         }
 704         else
 705         {
 706             psz_server = NULL;
 707         }
 708     }
 709
 710     /* Check that we got a valid server */
 711     if( psz_server == NULL )
 712     {
 713         psz_server = main_GetPszVariable( INPUT_SERVER_VAR,
 714                                           INPUT_SERVER_DEFAULT );
 715     }
 716
 717     /* Check that we got a valid port */
 718     if( i_port == 0 )
 719     {
 720         i_port = main_GetIntVariable( INPUT_PORT_VAR, INPUT_PORT_DEFAULT );
 721     }
 722
 723     if( psz_broadcast == NULL )
 724     {
 725         /* Are we broadcasting ? */
 726         if( main_GetIntVariable( INPUT_BROADCAST_VAR,
 727                                  INPUT_BROADCAST_DEFAULT ) )
 728         {
 729             psz_broadcast = main_GetPszVariable( INPUT_BCAST_ADDR_VAR,
 730                                                  INPUT_BCAST_ADDR_DEFAULT );
 731         }
 732         else
 733         {
 734            psz_broadcast = NULL;
 735         }
 736     }
 737
 738     intf_WarnMsg( 2, "input: server: %s port: %d broadcast: %s",
 739                      psz_server, i_port, psz_broadcast );
 740
 741     /* Open a SOCK_DGRAM (UDP) socket, in the AF_INET domain, automatic (0)
 742      * protocol */
 743     p_input->i_handle = socket( AF_INET, SOCK_DGRAM, 0 );
 744     if( p_input->i_handle == -1 )
 745     {
 746         intf_ErrMsg("input error: can't create socket : %s", strerror(errno));
 747         p_input->b_error = 1;
 748         return;
 749     }
 750
 751     /* We may want to reuse an already used socket */
 752     i_opt = 1;
 753     if( setsockopt( p_input->i_handle, SOL_SOCKET, SO_REUSEADDR,
 754                     (void*) &i_opt, sizeof( i_opt ) ) == -1 )
 755     {
 756         intf_ErrMsg( "input error: can't configure socket (SO_REUSEADDR: %s)",
 757                      strerror(errno));
 758         close( p_input->i_handle );
 759         p_input->b_error = 1;
 760         return;
 761     }
 762
 763     /* Increase the receive buffer size to 1/2MB (8Mb/s during 1/2s) to avoid
 764      * packet loss caused by scheduling problems */
 765     i_opt = 0x80000;
 766     if( setsockopt( p_input->i_handle, SOL_SOCKET, SO_RCVBUF,
 767                     (void*) &i_opt, sizeof( i_opt ) ) == -1 )
 768     {
 769         intf_ErrMsg( "input error: can't configure socket (SO_RCVBUF: %s)",
 770                      strerror(errno));
 771         close( p_input->i_handle );
 772         p_input->b_error = 1;
 773         return;
 774     }
 775
 776     /* Build the local socket */
 777     if ( network_BuildLocalAddr( &sock, i_port, psz_broadcast ) == -1 )
 778     {
 779         intf_ErrMsg( "input error: can't build local address" );
 780         close( p_input->i_handle );
 781         p_input->b_error = 1;
 782         return;
 783     }
 784
 785 #if defined( WIN32 )
 786     if ( psz_broadcast != NULL )
 787     {
 788         sock.sin_addr.s_addr = INADDR_ANY;
 789     }
 790 #endif
 791
 792     /* Bind it */
 793     if( bind( p_input->i_handle, (struct sockaddr *)&sock,
 794               sizeof( sock ) ) < 0 )
 795     {
 796         intf_ErrMsg("input error: can't bind socket (%s)", strerror(errno));
 797         close( p_input->i_handle );
 798         p_input->b_error = 1;
 799         return;
 800     }
 801
 802     /* Build socket for remote connection */
 803     if ( network_BuildRemoteAddr( &sock, psz_server ) == -1 )
 804     {
 805         intf_ErrMsg( "input error: can't build remote address" );
 806         close( p_input->i_handle );
 807         p_input->b_error = 1;
 808         return;
 809     }
 810
 811     /* And connect it ... should we really connect ? */
 812     if( connect( p_input->i_handle, (struct sockaddr *) &sock,
 813                  sizeof( sock ) ) == (-1) )
 814     {
 815         intf_ErrMsg( "input error: can't connect socket, %s",
 816                      strerror(errno) );
 817         close( p_input->i_handle );
 818         p_input->b_error = 1;
 819         return;
 820     }
 821
 822     /* We can't pace control, but FIXME : bug in meuuh's code to sync PCR
 823      * with the server. */
 824     p_input->stream.b_pace_control = 0;
 825     p_input->stream.b_seekable = 0;
 826
 827     intf_WarnMsg( 3, "input: successfully opened network mode" );
 828
 829     return;
 830 }
 831
 832 /*****************************************************************************
 833  * NetworkClose : close a network socket
 834  *****************************************************************************/
 835 static void NetworkClose( input_thread_t * p_input )
 836 {
 837     close( p_input->i_handle );
 838
 839 #ifdef WIN32
 840     WSACleanup();
 841 #endif
 842
 843 }
 844 #endif
 845