git.sesse.net Git - vlc/blob - 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 1.125 2001/06/27 09:53:57 massiot 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_init_bit_stream= f.pf_init_bit_stream;
 411     p_input->pf_read          = f.pf_read;
 412     p_input->pf_set_area      = f.pf_set_area;
 413     p_input->pf_demux         = f.pf_demux;
 414     p_input->pf_new_packet    = f.pf_new_packet;
 415     p_input->pf_new_pes       = f.pf_new_pes;
 416     p_input->pf_delete_packet = f.pf_delete_packet;
 417     p_input->pf_delete_pes    = f.pf_delete_pes;
 418     p_input->pf_rewind        = f.pf_rewind;
 419     p_input->pf_seek          = f.pf_seek;
 420 #undef f
 421
 422     /* We found the appropriate plugin, open the target */
 423     p_input->pf_open( p_input );
 424
 425     if( p_input->b_error )
 426     {
 427         /* We barfed -- exit nicely */
 428         module_Unneed( p_input->p_input_module );
 429         return( -1 );
 430     }
 431
 432     p_input->pf_init( p_input );
 433
 434     if( p_input->b_error )
 435     {
 436         /* We barfed -- exit nicely */
 437         p_input->pf_close( p_input );
 438         module_Unneed( p_input->p_input_module );
 439         return( -1 );
 440     }
 441
 442     *p_input->pi_status = THREAD_READY;
 443
 444     return( 0 );
 445 }
 446
 447 /*****************************************************************************
 448  * ErrorThread: RunThread() error loop
 449  *****************************************************************************
 450  * This function is called when an error occured during thread main's loop.
 451  *****************************************************************************/
 452 static void ErrorThread( input_thread_t *p_input )
 453 {
 454     while( !p_input->b_die )
 455     {
 456         /* Sleep a while */
 457         msleep( INPUT_IDLE_SLEEP );
 458     }
 459 }
 460
 461 /*****************************************************************************
 462  * EndThread: end the input thread
 463  *****************************************************************************/
 464 static void EndThread( input_thread_t * p_input )
 465 {
 466     int *       pi_status;                                  /* thread status */
 467
 468     /* Store status */
 469     pi_status = p_input->pi_status;
 470     *pi_status = THREAD_END;
 471
 472 #ifdef STATS
 473     {
 474         struct tms cpu_usage;
 475         times( &cpu_usage );
 476
 477         intf_Msg("input stats: cpu usage (user: %d, system: %d)",
 478                  cpu_usage.tms_utime, cpu_usage.tms_stime);
 479     }
 480 #endif
 481
 482     /* Free all ES and destroy all decoder threads */
 483     input_EndStream( p_input );
 484
 485     /* Free demultiplexer's data */
 486     p_input->pf_end( p_input );
 487
 488     /* Close stream */
 489     p_input->pf_close( p_input );
 490
 491     /* Release modules */
 492     module_Unneed( p_input->p_input_module );
 493
 494 }
 495
 496 /*****************************************************************************
 497  * DestroyThread: destroy the input thread
 498  *****************************************************************************/
 499 static void DestroyThread( input_thread_t * p_input )
 500 {
 501     int *       pi_status;                                  /* thread status */
 502
 503     /* Store status */
 504     pi_status = p_input->pi_status;
 505
 506     /* Destroy Mutex locks */
 507     vlc_mutex_destroy( &p_input->stream.control.control_lock );
 508     vlc_mutex_destroy( &p_input->stream.stream_lock );
 509
 510     /* Free input structure */
 511     free( p_input );
 512
 513     /* Update status */
 514     *pi_status = THREAD_OVER;
 515 }
 516
 517 /*****************************************************************************
 518  * FileOpen : open a file descriptor
 519  *****************************************************************************/
 520 static void FileOpen( input_thread_t * p_input )
 521 {
 522     struct stat         stat_info;
 523     int                 i_stat;
 524
 525     char *psz_name = p_input->p_source;
 526
 527     /* FIXME: this code ought to be in the plugin so that code can
 528      * be shared with the *_Probe function */
 529     if( ( i_stat = stat( psz_name, &stat_info ) ) == (-1) )
 530     {
 531         int i_size = strlen( psz_name );
 532
 533         if( ( i_size > 4 )
 534             && !strncasecmp( psz_name, "dvd:", 4 ) )
 535         {
 536             /* get rid of the 'dvd:' stuff and try again */
 537             psz_name += 4;
 538             i_stat = stat( psz_name, &stat_info );
 539         }
 540         else if( ( i_size > 5 )
 541                  && !strncasecmp( psz_name, "file:", 5 ) )
 542         {
 543             /* get rid of the 'file:' stuff and try again */
 544             psz_name += 5;
 545             i_stat = stat( psz_name, &stat_info );
 546         }
 547
 548         if( i_stat == (-1) )
 549         {
 550             intf_ErrMsg( "input error: cannot stat() file `%s' (%s)",
 551                          psz_name, strerror(errno));
 552             p_input->b_error = 1;
 553             return;
 554         }
 555     }
 556
 557     vlc_mutex_lock( &p_input->stream.stream_lock );
 558
 559     /* If we are here we can control the pace... */
 560     p_input->stream.b_pace_control = 1;
 561
 562     if( S_ISREG(stat_info.st_mode) || S_ISCHR(stat_info.st_mode)
 563          || S_ISBLK(stat_info.st_mode) )
 564     {
 565         p_input->stream.b_seekable = 1;
 566         p_input->stream.p_selected_area->i_size = stat_info.st_size;
 567     }
 568     else if( S_ISFIFO(stat_info.st_mode)
 569 #if !defined( SYS_BEOS ) && !defined( WIN32 )
 570              || S_ISSOCK(stat_info.st_mode)
 571 #endif
 572              )
 573     {
 574         p_input->stream.b_seekable = 0;
 575         p_input->stream.p_selected_area->i_size = 0;
 576     }
 577     else
 578     {
 579         vlc_mutex_unlock( &p_input->stream.stream_lock );
 580         intf_ErrMsg( "input error: unknown file type for `%s'",
 581                      psz_name );
 582         p_input->b_error = 1;
 583         return;
 584     }
 585
 586     p_input->stream.p_selected_area->i_tell = 0;
 587     vlc_mutex_unlock( &p_input->stream.stream_lock );
 588
 589     intf_WarnMsg( 1, "input: opening file `%s'", p_input->p_source );
 590 #if defined( WIN32 )
 591     if( (p_input->i_handle = open( psz_name, O_BINARY ) ) == (-1) )
 592 #else
 593     if( (p_input->i_handle = open( psz_name,
 594                                    /*O_NONBLOCK | O_LARGEFILE*/0 )) == (-1) )
 595 #endif
 596     {
 597         intf_ErrMsg( "input error: cannot open file (%s)", strerror(errno) );
 598         p_input->b_error = 1;
 599         return;
 600     }
 601
 602 }
 603
 604 /*****************************************************************************
 605  * FileClose : close a file descriptor
 606  *****************************************************************************/
 607 static void FileClose( input_thread_t * p_input )
 608 {
 609     intf_WarnMsg( 1, "input: closing file `%s'", p_input->p_source );
 610
 611     close( p_input->i_handle );
 612
 613     return;
 614 }
 615
 616 #if !defined( SYS_BEOS ) && !defined( SYS_NTO )
 617 /*****************************************************************************
 618  * NetworkOpen : open a network socket
 619  *****************************************************************************/
 620 static void NetworkOpen( input_thread_t * p_input )
 621 {
 622     char                *psz_server = NULL;
 623     char                *psz_broadcast = NULL;
 624     int                 i_port = 0;
 625     int                 i_opt;
 626     struct sockaddr_in  sock;
 627 #ifdef WIN32
 628     WSADATA Data;
 629     int i_err;
 630 #endif
 631
 632 #ifdef WIN32
 633     /* WinSock Library Init. */
 634     i_err = WSAStartup( MAKEWORD( 1, 1 ), &Data );
 635
 636     if( i_err )
 637     {
 638         intf_ErrMsg( "input: can't initiate WinSocks, error %i", i_err );
 639         return ;
 640     }
 641 #endif
 642
 643     /* Get the remote server */
 644     if( p_input->p_source != NULL )
 645     {
 646         psz_server = p_input->p_source;
 647
 648         /* Skip the protocol name */
 649         while( *psz_server && *psz_server != ':' )
 650         {
 651             psz_server++;
 652         }
 653
 654         /* Skip the "://" part */
 655         while( *psz_server && (*psz_server == ':' || *psz_server == '/') )
 656         {
 657             psz_server++;
 658         }
 659
 660         /* Found a server name */
 661         if( *psz_server )
 662         {
 663             char *psz_port = psz_server;
 664
 665             /* Skip the hostname part */
 666             while( *psz_port && *psz_port != ':' )
 667             {
 668                 psz_port++;
 669             }
 670
 671             /* Found a port name */
 672             if( *psz_port )
 673             {
 674                 /* Replace ':' with '\0' */
 675                 *psz_port = '\0';
 676                 psz_port++;
 677
 678                 psz_broadcast = psz_port;
 679                 while( *psz_broadcast && *psz_broadcast != ':' )
 680                 {
 681                     psz_broadcast++;
 682                 }
 683
 684                 if( *psz_broadcast )
 685                 {
 686                     *psz_broadcast = '\0';
 687                     psz_broadcast++;
 688                     while( *psz_broadcast && *psz_broadcast == ':' )
 689                     {
 690                         psz_broadcast++;
 691                     }
 692                 }
 693                 else
 694                 {
 695                     psz_broadcast = NULL;
 696                 }
 697
 698                 /* port before broadcast address */
 699                 if( *psz_port != ':' )
 700                 {
 701                     i_port = atoi( psz_port );
 702                 }
 703             }
 704         }
 705         else
 706         {
 707             psz_server = NULL;
 708         }
 709     }
 710
 711     /* Check that we got a valid server */
 712     if( psz_server == NULL )
 713     {
 714         psz_server = main_GetPszVariable( INPUT_SERVER_VAR,
 715                                           INPUT_SERVER_DEFAULT );
 716     }
 717
 718     /* Check that we got a valid port */
 719     if( i_port == 0 )
 720     {
 721         i_port = main_GetIntVariable( INPUT_PORT_VAR, INPUT_PORT_DEFAULT );
 722     }
 723
 724     if( psz_broadcast == NULL )
 725     {
 726         /* Are we broadcasting ? */
 727         if( main_GetIntVariable( INPUT_BROADCAST_VAR,
 728                                  INPUT_BROADCAST_DEFAULT ) )
 729         {
 730             psz_broadcast = main_GetPszVariable( INPUT_BCAST_ADDR_VAR,
 731                                                  INPUT_BCAST_ADDR_DEFAULT );
 732         }
 733         else
 734         {
 735            psz_broadcast = NULL;
 736         }
 737     }
 738
 739     intf_WarnMsg( 2, "input: server: %s port: %d broadcast: %s",
 740                      psz_server, i_port, psz_broadcast );
 741
 742     /* Open a SOCK_DGRAM (UDP) socket, in the AF_INET domain, automatic (0)
 743      * protocol */
 744     p_input->i_handle = socket( AF_INET, SOCK_DGRAM, 0 );
 745     if( p_input->i_handle == -1 )
 746     {
 747         intf_ErrMsg("input error: can't create socket : %s", strerror(errno));
 748         p_input->b_error = 1;
 749         return;
 750     }
 751
 752     /* We may want to reuse an already used socket */
 753     i_opt = 1;
 754     if( setsockopt( p_input->i_handle, SOL_SOCKET, SO_REUSEADDR,
 755                     (void*) &i_opt, sizeof( i_opt ) ) == -1 )
 756     {
 757         intf_ErrMsg( "input error: can't configure socket (SO_REUSEADDR: %s)",
 758                      strerror(errno));
 759         close( p_input->i_handle );
 760         p_input->b_error = 1;
 761         return;
 762     }
 763
 764     /* Increase the receive buffer size to 1/2MB (8Mb/s during 1/2s) to avoid
 765      * packet loss caused by scheduling problems */
 766     i_opt = 0x80000;
 767     if( setsockopt( p_input->i_handle, SOL_SOCKET, SO_RCVBUF,
 768                     (void*) &i_opt, sizeof( i_opt ) ) == -1 )
 769     {
 770         intf_ErrMsg( "input error: can't configure socket (SO_RCVBUF: %s)",
 771                      strerror(errno));
 772         close( p_input->i_handle );
 773         p_input->b_error = 1;
 774         return;
 775     }
 776
 777     /* Build the local socket */
 778     if ( network_BuildLocalAddr( &sock, i_port, psz_broadcast ) == -1 )
 779     {
 780         intf_ErrMsg( "input error: can't build local address" );
 781         close( p_input->i_handle );
 782         p_input->b_error = 1;
 783         return;
 784     }
 785
 786 #if defined( WIN32 )
 787     if ( psz_broadcast != NULL )
 788     {
 789         sock.sin_addr.s_addr = INADDR_ANY;
 790     }
 791 #endif
 792
 793     /* Bind it */
 794     if( bind( p_input->i_handle, (struct sockaddr *)&sock,
 795               sizeof( sock ) ) < 0 )
 796     {
 797         intf_ErrMsg("input error: can't bind socket (%s)", strerror(errno));
 798         close( p_input->i_handle );
 799         p_input->b_error = 1;
 800         return;
 801     }
 802
 803     /* Build socket for remote connection */
 804     if ( network_BuildRemoteAddr( &sock, psz_server ) == -1 )
 805     {
 806         intf_ErrMsg( "input error: can't build remote address" );
 807         close( p_input->i_handle );
 808         p_input->b_error = 1;
 809         return;
 810     }
 811
 812     /* And connect it ... should we really connect ? */
 813     if( connect( p_input->i_handle, (struct sockaddr *) &sock,
 814                  sizeof( sock ) ) == (-1) )
 815     {
 816         intf_ErrMsg( "input error: can't connect socket, %s",
 817                      strerror(errno) );
 818         close( p_input->i_handle );
 819         p_input->b_error = 1;
 820         return;
 821     }
 822
 823     /* We can't pace control, but FIXME : bug in meuuh's code to sync PCR
 824      * with the server. */
 825     p_input->stream.b_pace_control = 0;
 826     p_input->stream.b_seekable = 0;
 827
 828     intf_WarnMsg( 3, "input: successfully opened network mode" );
 829
 830     return;
 831 }
 832
 833 /*****************************************************************************
 834  * NetworkClose : close a network socket
 835  *****************************************************************************/
 836 static void NetworkClose( input_thread_t * p_input )
 837 {
 838     close( p_input->i_handle );
 839
 840 #ifdef WIN32
 841     WSACleanup();
 842 #endif
 843
 844 }
 845 #endif
 846