git.sesse.net Git - vlc/blob - modules/access/dvb/access.c

   1 /*****************************************************************************
   2  * access.c: DVB card input v4l2 only
   3  *****************************************************************************
   4  * Copyright (C) 1998-2003 VideoLAN
   5  *
   6  * Authors: Johan Bilien <jobi@via.ecp.fr>
   7  *          Jean-Paul Saman <jpsaman@wxs.nl>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30
  31 #include <vlc/vlc.h>
  32 #include <vlc/input.h>
  33
  34 #include "../../demux/mpeg/system.h"
  35
  36 #ifdef HAVE_UNISTD_H
  37 #   include <unistd.h>
  38 #endif
  39
  40 #include <fcntl.h>
  41 #include <sys/types.h>
  42
  43 #ifdef HAVE_ERRNO_H
  44 #    include <string.h>
  45 #    include <errno.h>
  46 #endif
  47
  48 #ifdef STRNCASECMP_IN_STRINGS_H
  49 #   include <strings.h>
  50 #endif
  51
  52 /* DVB Card Drivers */
  53 #include <linux/dvb/dmx.h>
  54 #include <linux/dvb/frontend.h>
  55
  56 #include "dvb.h"
  57
  58 #define SATELLITE_READ_ONCE 3
  59
  60 /*****************************************************************************
  61  * Local prototypes
  62  *****************************************************************************/
  63 static ssize_t SatelliteRead( input_thread_t * p_input, byte_t * p_buffer,
  64                               size_t i_len);
  65 static int     SatelliteSetArea    ( input_thread_t *, input_area_t * );
  66 static int     SatelliteSetProgram ( input_thread_t *, pgrm_descriptor_t * );
  67 static void    SatelliteSeek       ( input_thread_t *, off_t );
  68
  69 /*****************************************************************************
  70  * Open: open the frontend device
  71  *****************************************************************************/
  72 int E_(Open) ( vlc_object_t *p_this )
  73 {
  74     struct dvb_frontend_info frontend_info;
  75     struct dvb_frontend_parameters fep;
  76     input_thread_t *    p_input = (input_thread_t *)p_this;
  77     input_socket_t *    p_satellite;
  78     char *              psz_parser;
  79     char *              psz_next;
  80     int                 i_fd = 0;
  81     unsigned int        u_adapter = 1;
  82     unsigned int        u_device = 0;
  83     unsigned int        u_freq = 0;
  84     unsigned int        u_srate = 0;
  85     unsigned int        u_lnb_lof1;
  86     unsigned int        u_lnb_lof2;
  87     unsigned int        u_lnb_slof;
  88     int                 i_bandwidth = 0;
  89     int                 i_modulation = 0;
  90     int                 i_guard = 0;
  91     int                 i_transmission = 0;
  92     int                 i_hierarchy = 0;
  93     vlc_bool_t          b_polarisation = 0;
  94     int                 i_fec = 0;
  95     int                 i_code_rate_HP = 0;
  96     int                 i_code_rate_LP = 0;
  97     vlc_bool_t          b_diseqc;
  98     vlc_bool_t          b_probe;
  99     char                dvr[] = DVR;
 100     char                frontend[] = FRONTEND;
 101     int                 i_len = 0;
 102     vlc_value_t         val;
 103     int                 i_test;
 104
 105
 106     /* parse the options passed in command line : */
 107     psz_parser = strdup( p_input->psz_name );
 108
 109     if( !psz_parser )
 110     {
 111         return( -1 );
 112     }
 113
 114     // Get adapter and device number to use for this dvb card
 115     u_adapter = config_GetInt( p_input, "adapter" );
 116     u_device  = config_GetInt( p_input, "device" );
 117
 118     /* Get antenna configuration options */
 119     b_diseqc = config_GetInt( p_input, "diseqc" );
 120     u_lnb_lof1 = config_GetInt( p_input, "lnb-lof1" );
 121     u_lnb_lof2 = config_GetInt( p_input, "lnb-lof2" );
 122     u_lnb_slof = config_GetInt( p_input, "lnb-slof" );
 123
 124     /*Get modulation parameters*/
 125     i_bandwidth = config_GetInt( p_input, "bandwidth");
 126     i_code_rate_HP = config_GetInt(p_input, "code-rate-hp");
 127     i_code_rate_LP = config_GetInt(p_input, "code-rate-lp");
 128     i_modulation  = config_GetInt(p_input, "modulation");
 129     i_transmission = config_GetInt(p_input, "transmission");
 130     i_guard = config_GetInt(p_input, "guard");
 131     i_hierarchy = config_GetInt(p_input, "hierarchy");
 132
 133
 134     /* Determine frontend device information and capabilities */
 135     b_probe = config_GetInt( p_input, "probe" );
 136     if (b_probe)
 137     {
 138         if ( ioctl_InfoFrontend(p_input, &frontend_info, u_adapter, u_device) < 0 )
 139         {
 140             msg_Err( p_input, "(access) cannot determine frontend info" );
 141             return -1;
 142         }
 143     }
 144     else /* no frontend probing is done so use default border values. */
 145     {
 146         msg_Dbg( p_input, "using default values for frontend info" );
 147         i_len = sizeof(FRONTEND);
 148         if (snprintf(frontend, sizeof(FRONTEND), FRONTEND, u_adapter, u_device) >= i_len)
 149         {
 150             msg_Err( p_input, "snprintf() truncated string for FRONTEND" );
 151             frontend[sizeof(FRONTEND)] = '\0';
 152         }
 153         strncpy(frontend_info.name, frontend, 128);
 154
 155         msg_Dbg(p_input, "method of access is %s", p_input->psz_access);
 156
 157         frontend_info.type = FE_QPSK;
 158         if (strncmp( p_input->psz_access, "qpsk",4 ) ==0)
 159             frontend_info.type = FE_QPSK;
 160         else if (strncmp( p_input->psz_access, "cable",5 ) ==0)
 161             frontend_info.type = FE_QAM;
 162         else if (strncmp( p_input->psz_access, "terrestrial",11) ==0)
 163             frontend_info.type = FE_OFDM;
 164
 165         frontend_info.frequency_max =   12999000; /* KHz */
 166         frontend_info.frequency_min =    9750000;
 167         frontend_info.symbol_rate_max = 30000000;
 168         frontend_info.symbol_rate_min =  1000000;
 169     }
 170
 171     /* Register Callback functions */
 172     p_input->pf_read = SatelliteRead;
 173     p_input->pf_set_program = SatelliteSetProgram;
 174     p_input->pf_set_area = SatelliteSetArea;
 175     p_input->pf_seek = SatelliteSeek;
 176
 177     i_test = strtol( psz_parser, &psz_next, 10 );
 178     if ( psz_next == psz_parser )
 179     {
 180         for ( ;; )
 181         {
 182             if( !strncmp( psz_parser, "frequency=",
 183                                strlen( "frequency=" ) ) )
 184             {
 185                 u_freq =
 186                   strtol( psz_parser + strlen( "frequency=" ),
 187                             &psz_parser, 0 );
 188             }
 189             else if( !strncmp( psz_parser, "polarization=",
 190                                strlen( "polarization=" ) ) )
 191             {
 192                 char *psz_parser_init;
 193                 psz_parser += strlen( "polarization=" );
 194                 psz_parser_init = psz_parser;
 195                 while ( *psz_parser != ':')
 196                 {
 197                 psz_parser++;
 198                 }
 199                 if ((!strncmp( psz_parser_init, "V" ,
 200                      psz_parser - psz_parser_init ) ) ||
 201                    (!strncmp( psz_parser_init, "V" ,
 202                      psz_parser - psz_parser_init ) ) )
 203                 {
 204                     b_polarisation = VLC_FALSE;
 205                 }
 206                 else if ((!strncmp( psz_parser_init, "H" ,
 207                      psz_parser - psz_parser_init ) ) ||
 208                    (!strncmp( psz_parser_init, "h" ,
 209                      psz_parser - psz_parser_init ) ) )
 210
 211                 {
 212                     b_polarisation = VLC_TRUE;
 213                 }
 214             }
 215             else if( !strncmp( psz_parser, "fec=",
 216                                strlen( "fec=" ) ) )
 217             {
 218                 i_fec =
 219                 (int)strtol( psz_parser + strlen( "fec=" ),
 220                             &psz_parser, 0 );
 221             }
 222             else if( !strncmp( psz_parser, "srate=",
 223                                strlen( "srate=" ) ) )
 224             {
 225                 u_srate =
 226                 (unsigned int)strtol( psz_parser + strlen( "srate=" ),
 227                             &psz_parser, 0 );
 228             }
 229             else if( !strncmp( psz_parser, "program=",
 230                                strlen( "program=" ) ) )
 231             {
 232                 val.i_int = (int)strtol( psz_parser + strlen( "program=" ),
 233                             &psz_parser, 0 );
 234                 var_Set( p_input, "program", val );
 235             }
 236             else if( !strncmp( psz_parser, "diseqc",
 237                                strlen( "disecq" ) ) )
 238             {
 239                 psz_parser += strlen("disecq");
 240                 b_diseqc = VLC_TRUE;
 241             }
 242             else if( !strncmp( psz_parser, "lnb-lof1=",
 243                                strlen( "lnb-lof1=" ) ) )
 244             {
 245                 u_lnb_lof1 =
 246                 (unsigned int)strtol( psz_parser + strlen( "lnb_lof1=" ),
 247                             &psz_parser, 0 );
 248             }
 249             else if( !strncmp( psz_parser, "lnb-lof2=",
 250                                strlen( "lnb-lof2=" ) ) )
 251             {
 252                 u_lnb_lof2 =
 253                 (unsigned int)strtol( psz_parser + strlen( "lnb_lof2=" ),
 254                             &psz_parser, 0 );
 255             }
 256             else if( !strncmp( psz_parser, "lnb-slof=",
 257                                strlen( "lnb-slof=" ) ) )
 258             {
 259                 u_lnb_slof =
 260                 (unsigned int)strtol( psz_parser + strlen( "lnb_slof=" ),
 261                             &psz_parser, 0 );
 262             }
 263             else if( !strncmp( psz_parser, "device=",
 264                                strlen( "device=" ) ) )
 265             {
 266                 u_device =
 267                 (unsigned int)strtol( psz_parser + strlen( "device=" ),
 268                             &psz_parser, 0 );
 269             }
 270             else if( !strncmp( psz_parser, "adapter=",
 271                                strlen( "adapter=" ) ) )
 272             {
 273                 u_adapter =
 274                 (unsigned int)strtol( psz_parser + strlen( "adapter=" ),
 275                             &psz_parser, 0 );
 276             }
 277             else if (!strncmp( psz_parser, "modulation=",
 278                                strlen( "modulation=" ) ) )
 279             {
 280                 i_modulation = (int)strtol( psz_parser + strlen( "modulation=" ),
 281                             &psz_parser, 0 );
 282             }
 283             else if (!strncmp( psz_parser, "bandwidth=",
 284                                strlen( "bandwidth=" ) ) )
 285             {
 286                 i_bandwidth = (int)strtol( psz_parser + strlen( "bandwidth=" ),
 287                             &psz_parser, 0 );
 288             }
 289             else if (!strncmp( psz_parser, "guard=",
 290                                strlen( "guard=" ) ) )
 291             {
 292                 i_guard = (int)strtol( psz_parser + strlen( "guard=" ),
 293                             &psz_parser, 0 );
 294             }
 295             else if (!strncmp( psz_parser, "transmission=",
 296                                strlen( "transmission=" ) ) )
 297             {
 298                 i_transmission = (int)strtol( psz_parser +
 299                             strlen( "transmission=" ),&psz_parser, 0 );
 300             }
 301             else if (!strncmp( psz_parser, "hierarchy=",
 302                                strlen( "hierarchy=" ) ) )
 303             {
 304                 i_hierarchy = (int)strtol( psz_parser +
 305                                 strlen( "hierarchy=" ),&psz_parser, 0 );
 306             }
 307             else if (!strncmp( psz_parser, "code-rate-HP=",
 308                                strlen( "code-rate-HP=" ) ) )
 309             {
 310                 i_code_rate_HP = (int)strtol( psz_parser +
 311                                 strlen( "code-rate-HP=" ),&psz_parser, 0 );
 312             }
 313             else if (!strncmp( psz_parser, "code-rate-LP=",
 314                                strlen( "code-rate-LP=" ) ) )
 315             {
 316                 i_code_rate_LP = (int)strtol( psz_parser +
 317                                 strlen( "code-rate-LP=" ),&psz_parser, 0 );
 318             }
 319             else if( !strncmp( psz_parser, "probe",
 320                                strlen( "probe" ) ) )
 321             {
 322                 psz_parser += strlen("probe");
 323                 b_probe = VLC_TRUE;
 324             }
 325             if( *psz_parser )
 326                 psz_parser++;
 327             else
 328             break;
 329         }
 330     }
 331     else
 332     {
 333         msg_Warn(p_input,"DVV Input syntax has changed, please see documentation for further informations");
 334         u_freq = (unsigned int)i_test;
 335         if( *psz_next )
 336         {
 337             psz_parser = psz_next + 1;
 338             b_polarisation = (vlc_bool_t)strtol( psz_parser, &psz_next, 10 );
 339             if( *psz_next )
 340             {
 341                 psz_parser = psz_next + 1;
 342                 i_fec = (int)strtol( psz_parser, &psz_next, 10 );
 343                 if( *psz_next )
 344                 {
 345                     psz_parser = psz_next + 1;
 346                     u_srate = (unsigned int)strtol( psz_parser, &psz_next, 10 );
 347                 }
 348             }
 349         }
 350     }
 351
 352     /* Workaround for backwards compatibility */
 353     if (strncmp( p_input->psz_access, "satellite",9 ) ==0)
 354     {
 355         msg_Warn( p_input, "invalid frequency %d possibly in MHz, trying value *1000 KHz", u_freq );
 356         u_freq *= 1000;
 357     }
 358
 359     /* Validating input values */
 360     if ( ((u_freq) > frontend_info.frequency_max) ||
 361          ((u_freq) < frontend_info.frequency_min) )
 362     {
 363         msg_Warn( p_input, "invalid frequency %d (KHz), using default one", u_freq );
 364         u_freq = config_GetInt( p_input, "frequency" );
 365         if ( ((u_freq) > frontend_info.frequency_max) ||
 366              ((u_freq) < frontend_info.frequency_min) )
 367         {
 368             msg_Err( p_input, "invalid default frequency" );
 369             return -1;
 370         }
 371     }
 372
 373     /* Workaround for backwards compatibility */
 374     if (strncmp( p_input->psz_access, "satellite", 9 ) ==0)
 375     {
 376         msg_Warn( p_input, "invalid symbol rate %d possibly specified in MHz, trying value *1000 KHz", u_freq );
 377         u_srate *= 1000;
 378     }
 379
 380     if ( ((u_srate) > frontend_info.symbol_rate_max) ||
 381          ((u_srate) < frontend_info.symbol_rate_min) )
 382     {
 383         msg_Warn( p_input, "invalid symbol rate, using default one" );
 384         u_srate = config_GetInt( p_input, "symbol-rate" );
 385         if ( ((u_srate) > frontend_info.symbol_rate_max) ||
 386              ((u_srate) < frontend_info.symbol_rate_min) )
 387         {
 388             msg_Err( p_input, "invalid default symbol rate" );
 389             return -1;
 390         }
 391     }
 392
 393     if( b_polarisation && (b_polarisation != 1) )
 394     {
 395         msg_Warn( p_input, "invalid polarization, using default one" );
 396         b_polarisation = config_GetInt( p_input, "polarization" );
 397         if( b_polarisation && b_polarisation != 1 )
 398         {
 399             msg_Err( p_input, "invalid default polarization" );
 400             return -1;
 401         }
 402     }
 403
 404     if( (i_fec > 9) || (i_fec < 1) )
 405     {
 406         msg_Warn( p_input, "invalid FEC, using default one" );
 407         i_fec = config_GetInt( p_input, "fec" );
 408         if( (i_fec > 9) || (i_fec < 1) )
 409         {
 410             msg_Err( p_input, "invalid default FEC" );
 411             return -1;
 412         }
 413     }
 414     /* Setting frontend parameters for tuning the hardware */
 415     switch( frontend_info.type )
 416     {
 417         /* DVB-S: satellite and budget cards (nova) */
 418         case FE_QPSK:
 419             fep.frequency = u_freq; /* KHz */
 420             fep.inversion = dvb_DecodeInversion(p_input, (int) b_polarisation);
 421             fep.u.qpsk.symbol_rate = u_srate;
 422             fep.u.qpsk.fec_inner = dvb_DecodeFEC(p_input, i_fec);
 423             msg_Dbg( p_input, "satellite (QPSK) frontend found on %s", frontend_info.name );
 424             break;
 425
 426         /* DVB-C */
 427         case FE_QAM:
 428             fep.frequency = u_freq; /* KHz */
 429             fep.inversion = dvb_DecodeInversion(p_input, (int) b_polarisation);
 430             fep.u.qam.symbol_rate = u_srate;
 431             fep.u.qam.fec_inner = dvb_DecodeFEC(p_input, i_fec);
 432             fep.u.qam.modulation = dvb_DecodeModulation(p_input, i_modulation);
 433             msg_Dbg( p_input, "cable (QAM) frontend found on %s", frontend_info.name );
 434             break;
 435
 436         /* DVB-T */
 437         case FE_OFDM:
 438             fep.frequency = u_freq; /* KHz */
 439             fep.inversion = dvb_DecodeInversion(p_input, (int) b_polarisation);
 440             fep.u.ofdm.bandwidth = dvb_DecodeBandwidth(p_input, i_bandwidth);
 441             fep.u.ofdm.code_rate_HP = dvb_DecodeFEC(p_input, i_code_rate_HP);
 442             fep.u.ofdm.code_rate_LP = dvb_DecodeFEC(p_input, i_code_rate_LP);
 443             fep.u.ofdm.constellation = dvb_DecodeModulation(p_input, i_modulation);
 444             fep.u.ofdm.transmission_mode = dvb_DecodeTransmission(p_input, i_transmission);
 445             fep.u.ofdm.guard_interval = dvb_DecodeGuardInterval(p_input, i_guard);
 446             fep.u.ofdm.hierarchy_information = dvb_DecodeHierarchy(p_input, i_hierarchy);
 447             msg_Dbg( p_input, "terrestrial (OFDM) frontend found on %s", frontend_info.name );
 448             break;
 449
 450         default:
 451             msg_Err( p_input, "Could not determine frontend type on %s", frontend_info.name );
 452             return -1;
 453     }
 454
 455     /* Initialise structure */
 456     p_satellite = malloc( sizeof( input_socket_t ) );
 457
 458     if( p_satellite == NULL )
 459     {
 460         msg_Err( p_input, "out of memory" );
 461         return -1;
 462     }
 463
 464     p_input->p_access_data = (void *)p_satellite;
 465
 466     /* Open the DVR device */
 467     i_len = sizeof(DVR);
 468     if (snprintf(dvr, sizeof(DVR), DVR, u_adapter, u_device) >= i_len)
 469     {
 470         msg_Err( p_input, "snprintf() truncated string for DVR" );
 471         dvr[sizeof(DVR)] = '\0';
 472     }
 473     msg_Dbg( p_input, "opening DVR device '%s'", dvr );
 474
 475     if( (p_satellite->i_handle = open( dvr,
 476                                    /*O_NONBLOCK | O_LARGEFILE*/0 )) == (-1) )
 477     {
 478 #   ifdef HAVE_ERRNO_H
 479         msg_Warn( p_input, "cannot open `%s' (%s)", dvr, strerror(errno) );
 480 #   else
 481         msg_Warn( p_input, "cannot open `%s'", dvr );
 482 #   endif
 483         free( p_satellite );
 484         return -1;
 485     }
 486
 487     /* Initialize the Satellite Card */
 488     switch (ioctl_SetFrontend (p_input, fep, b_polarisation,
 489                                u_lnb_lof1, u_lnb_lof2, u_lnb_slof,
 490                                u_adapter, u_device ))
 491     {
 492         case -2:
 493             msg_Err( p_input, "frontend returned an unexpected event" );
 494             close( p_satellite->i_handle );
 495             free( p_satellite );
 496             return -1;
 497         case -3:
 498             msg_Err( p_input, "frontend returned no event" );
 499             close( p_satellite->i_handle );
 500             free( p_satellite );
 501             return -1;
 502         case -4:
 503             msg_Err( p_input, "frontend: timeout when polling for event" );
 504             close( p_satellite->i_handle );
 505             free( p_satellite );
 506             return -1;
 507         case -5:
 508             msg_Err( p_input, "an error occured when polling frontend device" );
 509             close( p_satellite->i_handle );
 510             free( p_satellite );
 511             return -1;
 512         case -1:
 513             msg_Err( p_input, "frontend returned a failure event" );
 514             close( p_satellite->i_handle );
 515             free( p_satellite );
 516             return -1;
 517         default:
 518             break;
 519     }
 520
 521     msg_Dbg( p_input, "setting filter on PAT" );
 522
 523     /* Set Filter on PAT packet */
 524     if ( ioctl_SetDMXFilter(p_input, 0, &i_fd, 21, u_adapter, u_device ) < 0 )
 525     {
 526 #   ifdef HAVE_ERRNO_H
 527         msg_Err( p_input, "an error occured when setting filter on PAT (%s)", strerror(errno) );
 528 #   else
 529         msg_Err( p_input, "an error occured when setting filter on PAT" );
 530 #   endif
 531         close( p_satellite->i_handle );
 532         free( p_satellite );
 533         return -1;
 534     }
 535
 536     if( input_InitStream( p_input, sizeof( stream_ts_data_t ) ) == -1 )
 537     {
 538         msg_Err( p_input, "could not initialize stream structure" );
 539         close( p_satellite->i_handle );
 540         free( p_satellite );
 541         return( -1 );
 542     }
 543
 544     vlc_mutex_lock( &p_input->stream.stream_lock );
 545
 546     p_input->stream.b_pace_control = 1;
 547     p_input->stream.b_seekable = 0;
 548     p_input->stream.p_selected_area->i_tell = 0;
 549
 550     vlc_mutex_unlock( &p_input->stream.stream_lock );
 551
 552     p_input->i_mtu = SATELLITE_READ_ONCE * TS_PACKET_SIZE;
 553     p_input->stream.i_method = INPUT_METHOD_SATELLITE;
 554
 555     return 0;
 556 }
 557
 558 /*****************************************************************************
 559  * Close : Close the device
 560  *****************************************************************************/
 561 void E_(Close) ( vlc_object_t *p_this )
 562 {
 563     input_thread_t *    p_input = (input_thread_t *)p_this;
 564     input_socket_t *    p_satellite;
 565     unsigned int        i_es_index;
 566
 567     if ( p_input->stream.p_selected_program )
 568     {
 569         for ( i_es_index = 1 ;
 570                 i_es_index < p_input->stream.p_selected_program->i_es_number;
 571                 i_es_index ++ )
 572         {
 573 #define p_es p_input->stream.p_selected_program->pp_es[i_es_index]
 574             if ( p_es->p_decoder_fifo )
 575             {
 576                 ioctl_UnsetDMXFilter(p_input, p_es->i_demux_fd );
 577             }
 578 #undef p_es
 579         }
 580     }
 581
 582     p_satellite = (input_socket_t *)p_input;
 583     close( p_satellite->i_handle );
 584 }
 585
 586 /*****************************************************************************
 587  * SatelliteRead: reads data from the satellite card
 588  *****************************************************************************/
 589 static ssize_t SatelliteRead( input_thread_t * p_input, byte_t * p_buffer,
 590                               size_t i_len )
 591 {
 592     input_socket_t * p_access_data = (input_socket_t *)p_input->p_access_data;
 593     ssize_t i_ret;
 594     unsigned int u_adapter = 1;
 595     unsigned int u_device = 0;
 596     unsigned int i;
 597
 598     // Get adapter and device number to use for this dvb card
 599     u_adapter = config_GetInt( p_input, "adapter" );
 600     u_device  = config_GetInt( p_input, "device" );
 601
 602     /* if not set, set filters to the PMTs */
 603     for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
 604     {
 605         if ( p_input->stream.pp_programs[i]->pp_es[0]->i_demux_fd == 0 )
 606         {
 607             ioctl_SetDMXFilter(p_input, p_input->stream.pp_programs[i]->pp_es[0]->i_id,
 608                        &p_input->stream.pp_programs[i]->pp_es[0]->i_demux_fd,
 609                        21, u_adapter, u_device );
 610         }
 611     }
 612
 613     i_ret = read( p_access_data->i_handle, p_buffer, i_len );
 614
 615     if( i_ret < 0 )
 616     {
 617 #   ifdef HAVE_ERRNO_H
 618         msg_Err( p_input, "read failed (%s)", strerror(errno) );
 619 #   else
 620         msg_Err( p_input, "read failed" );
 621 #   endif
 622     }
 623
 624     return i_ret;
 625 }
 626
 627 /*****************************************************************************
 628  * SatelliteSetArea : Does nothing
 629  *****************************************************************************/
 630 static int SatelliteSetArea( input_thread_t * p_input, input_area_t * p_area )
 631 {
 632     return -1;
 633 }
 634
 635 /*****************************************************************************
 636  * SatelliteSetProgram : Sets the card filters according to the
 637  *                 selected program,
 638  *                 and makes the appropriate changes to stream structure.
 639  *****************************************************************************/
 640 int SatelliteSetProgram( input_thread_t    * p_input,
 641                          pgrm_descriptor_t * p_new_prg )
 642 {
 643     unsigned int i_es_index;
 644     vlc_value_t val;
 645     unsigned int u_adapter = 1;
 646     unsigned int u_device = 0;
 647     unsigned int u_video_type = 1; /* default video type */
 648     unsigned int u_audio_type = 2; /* default audio type */
 649
 650     /* Get adapter and device number to use for this dvb card */
 651     u_adapter = config_GetInt( p_input, "adapter" );
 652     u_device  = config_GetInt( p_input, "device" );
 653
 654     if ( p_input->stream.p_selected_program )
 655     {
 656         for ( i_es_index = 1 ; /* 0 should be the PMT */
 657                 i_es_index < p_input->stream.p_selected_program->i_es_number ;
 658                 i_es_index ++ )
 659         {
 660 #define p_es p_input->stream.p_selected_program->pp_es[i_es_index]
 661             if ( p_es->p_decoder_fifo )
 662             {
 663                 input_UnselectES( p_input , p_es );
 664             }
 665             if ( p_es->i_demux_fd > 0)
 666             {
 667                 ioctl_UnsetDMXFilter(p_input, p_es->i_demux_fd );
 668                 p_es->i_demux_fd = 0;
 669             }
 670 #undef p_es
 671         }
 672     }
 673
 674     for (i_es_index = 1 ; i_es_index < p_new_prg->i_es_number ; i_es_index ++ )
 675     {
 676 #define p_es p_new_prg->pp_es[i_es_index]
 677         switch( p_es->i_cat )
 678         {
 679             case MPEG1_VIDEO_ES:
 680             case MPEG2_VIDEO_ES:
 681             case MPEG2_MOTO_VIDEO_ES:
 682                 if ( input_SelectES( p_input , p_es ) == 0 )
 683                 {
 684                     ioctl_SetDMXFilter(p_input, p_es->i_id, &p_es->i_demux_fd, u_video_type,
 685                                        u_adapter, u_device);
 686                     u_video_type += 5;
 687                 }
 688                 break;
 689             case MPEG1_AUDIO_ES:
 690             case MPEG2_AUDIO_ES:
 691                 if ( input_SelectES( p_input , p_es ) == 0 )
 692                 {
 693                     ioctl_SetDMXFilter(p_input, p_es->i_id, &p_es->i_demux_fd, u_audio_type,
 694                                        u_adapter, u_device);
 695                     input_SelectES( p_input , p_es );
 696                     u_audio_type += 5;
 697                 }
 698                 break;
 699             default:
 700                 ioctl_SetDMXFilter(p_input, p_es->i_id, &p_es->i_demux_fd, 21, u_adapter, u_device);
 701                 input_SelectES( p_input , p_es );
 702                 msg_Warn(p_input, "ES streamtype 0x%d found used as DMX_PES_OTHER !!",(int) p_es->i_cat);
 703                 break;
 704 #undef p_es
 705         }
 706     }
 707
 708     p_input->stream.p_selected_program = p_new_prg;
 709
 710     /* Update the navigation variables without triggering a callback */
 711     val.i_int = p_new_prg->i_number;
 712     var_Change( p_input, "program", VLC_VAR_SETVALUE, &val, NULL );
 713
 714     return 0;
 715 }
 716
 717 /*****************************************************************************
 718  * SatelliteSeek: does nothing (not a seekable stream
 719  *****************************************************************************/
 720 static void SatelliteSeek( input_thread_t * p_input, off_t i_off )
 721 {
 722     ;
 723 }
 724