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 1.119 2001/06/07 01:10:33 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     /* By default there is one areas in a stream */
 149     input_AddArea( p_input );
 150     p_input->stream.p_selected_area = p_input->stream.pp_areas[0];
 151
 152     /* Initialize stream control properties. */
 153     p_input->stream.control.i_status = PLAYING_S;
 154     p_input->stream.control.i_rate = DEFAULT_RATE;
 155     p_input->stream.control.b_mute = 0;
 156     p_input->stream.control.b_bw = 0;
 157
 158     /* Setup callbacks */
 159     p_input->pf_file_open     = FileOpen;
 160     p_input->pf_file_close    = FileClose;
 161 #if !defined( SYS_BEOS ) && !defined( SYS_NTO )
 162     p_input->pf_network_open  = NetworkOpen;
 163     p_input->pf_network_close = NetworkClose;
 164 #endif
 165
 166     /* Create thread and set locks. */
 167     vlc_mutex_init( &p_input->stream.stream_lock );
 168     vlc_cond_init( &p_input->stream.stream_wait );
 169     vlc_mutex_init( &p_input->stream.control.control_lock );
 170     if( vlc_thread_create( &p_input->thread_id, "input", (void *) RunThread,
 171                            (void *) p_input ) )
 172     {
 173         intf_ErrMsg( "input error: can't create input thread (%s)",
 174                      strerror(errno) );
 175         free( p_input );
 176         return( NULL );
 177     }
 178
 179     /* If status is NULL, wait until the thread is created */
 180     if( pi_status == NULL )
 181     {
 182         do
 183         {
 184             msleep( THREAD_SLEEP );
 185         } while( (i_status != THREAD_READY) && (i_status != THREAD_ERROR)
 186                 && (i_status != THREAD_FATAL) );
 187         if( i_status != THREAD_READY )
 188         {
 189             return( NULL );
 190         }
 191     }
 192     return( p_input );
 193 }
 194
 195 /*****************************************************************************
 196  * input_DestroyThread: mark an input thread as zombie
 197  *****************************************************************************
 198  * This function should not return until the thread is effectively cancelled.
 199  *****************************************************************************/
 200 void input_DestroyThread( input_thread_t *p_input, int *pi_status )
 201 {
 202     int         i_status;                                   /* thread status */
 203
 204     /* Set status */
 205     p_input->pi_status = (pi_status != NULL) ? pi_status : &i_status;
 206     *p_input->pi_status = THREAD_DESTROY;
 207
 208     /* Request thread destruction */
 209     p_input->b_die = 1;
 210
 211     /* Make the thread exit of an eventual vlc_cond_wait() */
 212     vlc_mutex_lock( &p_input->stream.stream_lock );
 213     vlc_cond_signal( &p_input->stream.stream_wait );
 214     vlc_mutex_unlock( &p_input->stream.stream_lock );
 215
 216     /* If status is NULL, wait until thread has been destroyed */
 217     if( pi_status == NULL )
 218     {
 219         do
 220         {
 221             msleep( THREAD_SLEEP );
 222         } while ( (i_status != THREAD_OVER) && (i_status != THREAD_ERROR)
 223                   && (i_status != THREAD_FATAL) );
 224     }
 225 }
 226
 227 /*****************************************************************************
 228  * RunThread: main thread loop
 229  *****************************************************************************
 230  * Thread in charge of processing the network packets and demultiplexing.
 231  *****************************************************************************/
 232 static void RunThread( input_thread_t *p_input )
 233 {
 234     int                     i_error, i;
 235     data_packet_t **        pp_packets;
 236
 237     if( InitThread( p_input ) )
 238     {
 239
 240         /* If we failed, wait before we are killed, and exit */
 241         *p_input->pi_status = THREAD_ERROR;
 242         p_input->b_error = 1;
 243         ErrorThread( p_input );
 244         DestroyThread( p_input );
 245         return;
 246     }
 247
 248     /* initialization is completed */
 249     vlc_mutex_lock( &p_input->stream.stream_lock );
 250     p_input->stream.b_changed = 1;
 251     vlc_mutex_unlock( &p_input->stream.stream_lock );
 252
 253     pp_packets = (data_packet_t **) malloc( p_input->i_read_once *
 254                                         sizeof( data_packet_t * ) );
 255     if( pp_packets == NULL )
 256     {
 257         intf_ErrMsg( "input error: out of memory" );
 258         free( pp_packets );
 259         p_input->b_error = 1;
 260     }
 261
 262     while( !p_input->b_die && !p_input->b_error && !p_input->b_eof )
 263     {
 264 #ifdef STATS
 265         p_input->c_loops++;
 266 #endif
 267
 268         vlc_mutex_lock( &p_input->stream.stream_lock );
 269
 270         if( p_input->stream.p_new_area )
 271         {
 272             p_input->pf_set_area( p_input, p_input->stream.p_new_area );
 273             p_input->stream.p_new_area = NULL;
 274         }
 275
 276         if( p_input->stream.p_selected_area->i_seek != NO_SEEK )
 277         {
 278             if( p_input->stream.b_seekable && p_input->pf_seek != NULL )
 279             {
 280                 p_input->pf_seek( p_input,
 281                                   p_input->stream.p_selected_area->i_seek );
 282
 283                 for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
 284                 {
 285                     pgrm_descriptor_t * p_pgrm
 286                                             = p_input->stream.pp_programs[i];
 287                     /* Escape all decoders for the stream discontinuity they
 288                      * will encounter. */
 289                     input_EscapeDiscontinuity( p_input, p_pgrm );
 290
 291                     /* Reinitialize synchro. */
 292                     p_pgrm->i_synchro_state = SYNCHRO_REINIT;
 293                 }
 294             }
 295             p_input->stream.p_selected_area->i_seek = NO_SEEK;
 296         }
 297
 298         if( p_input->stream.p_removed_es )
 299         {
 300             input_UnselectES( p_input, p_input->stream.p_removed_es );
 301             p_input->stream.p_removed_es = NULL;
 302         }
 303
 304         if( p_input->stream.p_newly_selected_es )
 305         {
 306             input_SelectES( p_input, p_input->stream.p_newly_selected_es );
 307             p_input->stream.p_newly_selected_es = NULL;
 308         }
 309
 310         vlc_mutex_unlock( &p_input->stream.stream_lock );
 311
 312         i_error = p_input->pf_read( p_input, pp_packets );
 313
 314         /* Demultiplex read packets. */
 315         for( i = 0; i < p_input->i_read_once && pp_packets[i] != NULL; i++ )
 316         {
 317             p_input->pf_demux( p_input, pp_packets[i] );
 318         }
 319
 320         if( i_error )
 321         {
 322             if( i_error == 1 )
 323             {
 324                 /* End of file - we do not set b_die because only the
 325                  * interface is allowed to do so. */
 326                 intf_WarnMsg( 3, "input: EOF reached" );
 327                 p_input->b_eof = 1;
 328             }
 329             else
 330             {
 331                 p_input->b_error = 1;
 332             }
 333         }
 334     }
 335
 336     free( pp_packets );
 337
 338     if( p_input->b_error || p_input->b_eof )
 339     {
 340         ErrorThread( p_input );
 341     }
 342
 343     EndThread( p_input );
 344
 345     DestroyThread( p_input );
 346
 347     intf_DbgMsg("input: Thread end");
 348 }
 349
 350 /*****************************************************************************
 351  * InitThread: init the input Thread
 352  *****************************************************************************/
 353 static int InitThread( input_thread_t * p_input )
 354 {
 355
 356 #ifdef STATS
 357     /* Initialize statistics */
 358     p_input->c_loops                    = 0;
 359     p_input->c_bytes                    = 0;
 360     p_input->c_payload_bytes            = 0;
 361     p_input->c_packets_read             = 0;
 362     p_input->c_packets_trashed          = 0;
 363 #endif
 364
 365     /* Default, might get overwritten */
 366     p_input->pf_open = p_input->pf_file_open;
 367     p_input->pf_close = p_input->pf_file_close;
 368
 369     p_input->p_input_module = module_Need( MODULE_CAPABILITY_INPUT,
 370                                            (probedata_t *)p_input );
 371
 372     if( p_input->p_input_module == NULL )
 373     {
 374         intf_ErrMsg( "input error: no suitable input module for `%s'",
 375                      p_input->p_source );
 376         return( -1 );
 377     }
 378
 379 #define f p_input->p_input_module->p_functions->input.functions.input
 380     p_input->pf_init          = f.pf_init;
 381     if( f.pf_open != NULL )
 382     {
 383         p_input->pf_open          = f.pf_open;
 384     }
 385     if( f.pf_close != NULL )
 386     {
 387         p_input->pf_close         = f.pf_close;
 388     }
 389     p_input->pf_end           = f.pf_end;
 390     p_input->pf_read          = f.pf_read;
 391     p_input->pf_set_area      = f.pf_set_area;
 392     p_input->pf_demux         = f.pf_demux;
 393     p_input->pf_new_packet    = f.pf_new_packet;
 394     p_input->pf_new_pes       = f.pf_new_pes;
 395     p_input->pf_delete_packet = f.pf_delete_packet;
 396     p_input->pf_delete_pes    = f.pf_delete_pes;
 397     p_input->pf_rewind        = f.pf_rewind;
 398     p_input->pf_seek          = f.pf_seek;
 399 #undef f
 400
 401     /* We found the appropriate plugin, open the target */
 402     p_input->pf_open( p_input );
 403
 404     if( p_input->b_error )
 405     {
 406         /* We barfed -- exit nicely */
 407         p_input->pf_close( p_input );
 408         module_Unneed( p_input->p_input_module );
 409         return( -1 );
 410     }
 411
 412     p_input->pf_init( p_input );
 413
 414     if( p_input->b_error )
 415     {
 416         /* We barfed -- exit nicely */
 417         p_input->pf_close( p_input );
 418         module_Unneed( p_input->p_input_module );
 419         return( -1 );
 420     }
 421
 422     *p_input->pi_status = THREAD_READY;
 423
 424     return( 0 );
 425 }
 426
 427 /*****************************************************************************
 428  * ErrorThread: RunThread() error loop
 429  *****************************************************************************
 430  * This function is called when an error occured during thread main's loop.
 431  *****************************************************************************/
 432 static void ErrorThread( input_thread_t *p_input )
 433 {
 434     while( !p_input->b_die )
 435     {
 436         /* Sleep a while */
 437         msleep( INPUT_IDLE_SLEEP );
 438     }
 439 }
 440
 441 /*****************************************************************************
 442  * EndThread: end the input thread
 443  *****************************************************************************/
 444 static void EndThread( input_thread_t * p_input )
 445 {
 446     int *       pi_status;                                  /* thread status */
 447
 448     /* Store status */
 449     pi_status = p_input->pi_status;
 450     *pi_status = THREAD_END;
 451
 452 #ifdef STATS
 453     {
 454         struct tms cpu_usage;
 455         times( &cpu_usage );
 456
 457         intf_Msg("input stats: cpu usage (user: %d, system: %d)",
 458                  cpu_usage.tms_utime, cpu_usage.tms_stime);
 459     }
 460 #endif
 461
 462     /* Free all ES and destroy all decoder threads */
 463     input_EndStream( p_input );
 464
 465     /* Free demultiplexer's data */
 466     p_input->pf_end( p_input );
 467
 468     /* Close stream */
 469     p_input->pf_close( p_input );
 470
 471     /* Release modules */
 472     module_Unneed( p_input->p_input_module );
 473
 474 }
 475
 476 /*****************************************************************************
 477  * DestroyThread: destroy the input thread
 478  *****************************************************************************/
 479 static void DestroyThread( input_thread_t * p_input )
 480 {
 481     int *       pi_status;                                  /* thread status */
 482
 483     /* Store status */
 484     pi_status = p_input->pi_status;
 485
 486     /* Destroy Mutex locks */
 487     vlc_mutex_destroy( &p_input->stream.control.control_lock );
 488     vlc_mutex_destroy( &p_input->stream.stream_lock );
 489
 490     /* Free input structure */
 491     free( p_input );
 492
 493     /* Update status */
 494     *pi_status = THREAD_OVER;
 495 }
 496
 497 /*****************************************************************************
 498  * FileOpen : open a file descriptor
 499  *****************************************************************************/
 500 static void FileOpen( input_thread_t * p_input )
 501 {
 502     struct stat         stat_info;
 503     int                 i_stat;
 504
 505 #if defined( WIN32 )
 506     char buf[7] = { 0 };
 507 #endif
 508
 509     char *psz_name = p_input->p_source;
 510
 511     /* FIXME: this code ought to be in the plugin so that code can
 512      * be shared with the *_Probe function */
 513     if( ( i_stat = stat( psz_name, &stat_info ) ) == (-1) )
 514     {
 515         int i_size = strlen( psz_name );
 516
 517         if( ( i_size > 4 )
 518             && !strncasecmp( psz_name, "dvd:", 4 ) )
 519         {
 520             /* get rid of the 'dvd:' stuff and try again */
 521             psz_name += 4;
 522             i_stat = stat( psz_name, &stat_info );
 523 #if defined( WIN32 )
 524             _snprintf( buf, 7, "\\\\.\\%c:", psz_name[0] );
 525 #endif
 526         }
 527         else if( ( i_size > 5 )
 528                  && !strncasecmp( psz_name, "file:", 5 ) )
 529         {
 530             /* get rid of the 'file:' stuff and try again */
 531             psz_name += 5;
 532             i_stat = stat( psz_name, &stat_info );
 533         }
 534
 535         if( i_stat == (-1)
 536 #if defined( WIN32 )
 537         && !buf[0]
 538 #endif
 539             )
 540         {
 541             intf_ErrMsg( "input error: cannot stat() file `%s' (%s)",
 542                          psz_name, strerror(errno));
 543             p_input->b_error = 1;
 544             return;
 545         }
 546     }
 547
 548     vlc_mutex_lock( &p_input->stream.stream_lock );
 549
 550     /* If we are here we can control the pace... */
 551     p_input->stream.b_pace_control = 1;
 552
 553     if( S_ISREG(stat_info.st_mode) || S_ISCHR(stat_info.st_mode)
 554          || S_ISBLK(stat_info.st_mode)
 555 #if defined( WIN32 )
 556          || ( buf[0] && ( ( stat_info.st_size = 0 ) == 0 ) )
 557 #endif
 558          )
 559     {
 560         p_input->stream.b_seekable = 1;
 561         p_input->stream.p_selected_area->i_size = stat_info.st_size;
 562     }
 563     else if( S_ISFIFO(stat_info.st_mode)
 564 #if !defined( SYS_BEOS ) && !defined( WIN32 )
 565              || S_ISSOCK(stat_info.st_mode)
 566 #endif
 567              )
 568     {
 569         p_input->stream.b_seekable = 0;
 570         p_input->stream.p_selected_area->i_size = 0;
 571     }
 572     else
 573     {
 574         vlc_mutex_unlock( &p_input->stream.stream_lock );
 575         intf_ErrMsg( "input error: unknown file type for `%s'",
 576                      psz_name );
 577         p_input->b_error = 1;
 578         return;
 579     }
 580
 581     p_input->stream.p_selected_area->i_tell = 0;
 582     vlc_mutex_unlock( &p_input->stream.stream_lock );
 583
 584     intf_WarnMsg( 1, "input: opening file `%s'", p_input->p_source );
 585 #ifndef WIN32
 586     if( (p_input->i_handle = open( psz_name,
 587                                    /*O_NONBLOCK | O_LARGEFILE*/0 )) == (-1) )
 588 #else
 589     if( ( buf[0] && ( (HANDLE) p_input->i_handle = CreateFile( buf,
 590         GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
 591         NULL, OPEN_EXISTING, 0, NULL ) ) == INVALID_HANDLE_VALUE ) ||
 592         ( !buf[0] && (p_input->i_handle = open( psz_name, O_BINARY ) ) == (-1) ) )
 593 #endif
 594     {
 595         intf_ErrMsg( "input error: cannot open file (%s)", strerror(errno) );
 596         p_input->b_error = 1;
 597         return;
 598     }
 599
 600 }
 601
 602 /*****************************************************************************
 603  * FileClose : close a file descriptor
 604  *****************************************************************************/
 605 static void FileClose( input_thread_t * p_input )
 606 {
 607     intf_WarnMsg( 1, "input: closing file `%s'", p_input->p_source );
 608 #if defined( WIN32 )
 609     if( ( strlen( p_input->p_source ) > 4 ) &&
 610         !strncasecmp( p_input->p_source, "dvd:", 4 ) )
 611     {
 612         CloseHandle( (HANDLE) p_input->i_handle );
 613     }
 614     else
 615 #endif
 616     close( p_input->i_handle );
 617
 618     return;
 619 }
 620
 621 #if !defined( SYS_BEOS ) && !defined( SYS_NTO )
 622 /*****************************************************************************
 623  * NetworkOpen : open a network socket
 624  *****************************************************************************/
 625 static void NetworkOpen( input_thread_t * p_input )
 626 {
 627     char                *psz_server = NULL;
 628     char                *psz_broadcast = NULL;
 629     int                 i_port = 0;
 630     int                 i_opt;
 631     struct sockaddr_in  sock;
 632
 633 #ifdef WIN32
 634     /* WinSock Library Init. */
 635     WSADATA Data;
 636     int i_err = WSAStartup( MAKEWORD( 1, 1 ), &Data );
 637
 638     if( i_err )
 639     {
 640         intf_ErrMsg( "input: can't initiate WinSocks, error %i", i_err );
 641         return ;
 642     }
 643 #endif
 644
 645     /* Get the remote server */
 646     if( p_input->p_source != NULL )
 647     {
 648         psz_server = p_input->p_source;
 649
 650         /* Skip the protocol name */
 651         while( *psz_server && *psz_server != ':' )
 652         {
 653             psz_server++;
 654         }
 655
 656         /* Skip the "://" part */
 657         while( *psz_server && (*psz_server == ':' || *psz_server == '/') )
 658         {
 659             psz_server++;
 660         }
 661
 662         /* Found a server name */
 663         if( *psz_server )
 664         {
 665             char *psz_port = psz_server;
 666
 667             /* Skip the hostname part */
 668             while( *psz_port && *psz_port != ':' )
 669             {
 670                 psz_port++;
 671             }
 672
 673             /* Found a port name */
 674             if( *psz_port )
 675             {
 676                 /* Replace ':' with '\0' */
 677                 *psz_port = '\0';
 678                 psz_port++;
 679
 680                 psz_broadcast = psz_port;
 681                 while( *psz_broadcast && *psz_broadcast != ':' )
 682                 {
 683                     psz_broadcast++;
 684                 }
 685
 686                 if( *psz_broadcast )
 687                 {
 688                     *psz_broadcast = '\0';
 689                     psz_broadcast++;
 690                     while( *psz_broadcast && *psz_broadcast == ':' )
 691                     {
 692                         psz_broadcast++;
 693                     }
 694                 }
 695                 else
 696                 {
 697                     psz_broadcast = NULL;
 698                 }
 699
 700                 /* port before broadcast address */
 701                 if( *psz_port != ':' )
 702                 {
 703                     i_port = atoi( psz_port );
 704                 }
 705             }
 706         }
 707         else
 708         {
 709             psz_server = NULL;
 710         }
 711     }
 712
 713     /* Check that we got a valid server */
 714     if( psz_server == NULL )
 715     {
 716         psz_server = main_GetPszVariable( INPUT_SERVER_VAR,
 717                                           INPUT_SERVER_DEFAULT );
 718     }
 719
 720     /* Check that we got a valid port */
 721     if( i_port == 0 )
 722     {
 723         i_port = main_GetIntVariable( INPUT_PORT_VAR, INPUT_PORT_DEFAULT );
 724     }
 725
 726     if( psz_broadcast == NULL )
 727     {
 728         /* Are we broadcasting ? */
 729         if( main_GetIntVariable( INPUT_BROADCAST_VAR,
 730                                  INPUT_BROADCAST_DEFAULT ) )
 731         {
 732             psz_broadcast = main_GetPszVariable( INPUT_BCAST_ADDR_VAR,
 733                                                  INPUT_BCAST_ADDR_DEFAULT );
 734         }
 735         else
 736         {
 737            psz_broadcast = NULL;
 738         }
 739     }
 740
 741     intf_WarnMsg( 2, "input: server: %s port: %d broadcast: %s",
 742                      psz_server, i_port, psz_broadcast );
 743
 744     /* Open a SOCK_DGRAM (UDP) socket, in the AF_INET domain, automatic (0)
 745      * protocol */
 746     p_input->i_handle = socket( AF_INET, SOCK_DGRAM, 0 );
 747     if( p_input->i_handle == -1 )
 748     {
 749         intf_ErrMsg("input error: can't create socket : %s", strerror(errno));
 750         p_input->b_error = 1;
 751         return;
 752     }
 753
 754     /* We may want to reuse an already used socket */
 755     i_opt = 1;
 756     if( setsockopt( p_input->i_handle, SOL_SOCKET, SO_REUSEADDR,
 757                     (void*) &i_opt, sizeof( i_opt ) ) == -1 )
 758     {
 759         intf_ErrMsg( "input error: can't configure socket (SO_REUSEADDR: %s)",
 760                      strerror(errno));
 761         close( p_input->i_handle );
 762         p_input->b_error = 1;
 763         return;
 764     }
 765
 766     /* Increase the receive buffer size to 1/2MB (8Mb/s during 1/2s) to avoid
 767      * packet loss caused by scheduling problems */
 768     i_opt = 0x80000;
 769     if( setsockopt( p_input->i_handle, SOL_SOCKET, SO_RCVBUF,
 770                     (void*) &i_opt, sizeof( i_opt ) ) == -1 )
 771     {
 772         intf_ErrMsg( "input error: can't configure socket (SO_RCVBUF: %s)",
 773                      strerror(errno));
 774         close( p_input->i_handle );
 775         p_input->b_error = 1;
 776         return;
 777     }
 778
 779     /* Build the local socket */
 780     if ( network_BuildLocalAddr( &sock, i_port, psz_broadcast ) == -1 )
 781     {
 782         intf_ErrMsg( "input error: can't build local address" );
 783         close( p_input->i_handle );
 784         p_input->b_error = 1;
 785         return;
 786     }
 787
 788     /* Bind it */
 789     if( bind( p_input->i_handle, (struct sockaddr *)&sock,
 790               sizeof( sock ) ) < 0 )
 791     {
 792         intf_ErrMsg("input error: can't bind socket (%s)", strerror(errno));
 793         close( p_input->i_handle );
 794         p_input->b_error = 1;
 795         return;
 796     }
 797
 798     /* Build socket for remote connection */
 799     if ( network_BuildRemoteAddr( &sock, psz_server ) == -1 )
 800     {
 801         intf_ErrMsg( "input error: can't build remote address" );
 802         close( p_input->i_handle );
 803         p_input->b_error = 1;
 804         return;
 805     }
 806
 807     /* And connect it ... should we really connect ? */
 808     if( connect( p_input->i_handle, (struct sockaddr *) &sock,
 809                  sizeof( sock ) ) == (-1) )
 810     {
 811         intf_ErrMsg( "input error: can't connect socket, %s",
 812                      strerror(errno) );
 813         close( p_input->i_handle );
 814         p_input->b_error = 1;
 815         return;
 816     }
 817
 818     /* We can't pace control, but FIXME : bug in meuuh's code to sync PCR
 819      * with the server. */
 820     p_input->stream.b_pace_control = 0;
 821     p_input->stream.b_seekable = 0;
 822
 823     intf_WarnMsg( 3, "input: successfully opened network mode" );
 824
 825     return;
 826 }
 827
 828 /*****************************************************************************
 829  * NetworkClose : close a network socket
 830  *****************************************************************************/
 831 static void NetworkClose( input_thread_t * p_input )
 832 {
 833     close( p_input->i_handle );
 834
 835 #ifdef WIN32
 836     WSACleanup();
 837 #endif
 838
 839 }
 840 #endif
 841