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

   1 /*****************************************************************************
   2  * scan.h : functions to ease DVB scanning
   3  *****************************************************************************
   4  * Copyright (C) 2008,2010 the VideoLAN team
   5  *
   6  * Authors: Laurent Aimar <fenrir@videolan.org>
   7  *          David Kaplan <david@2of1.org>
   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 #ifdef HAVE_DVBPSI_DR_H
  25 #ifdef _DVBPSI_DR_43_H_
  26 #   define DVBPSI_USE_NIT 1
  27 #   include <dvbpsi/nit.h>
  28 #endif
  29 #else
  30 #ifdef _DVBPSI_DR_43_H_
  31 #   define DVBPSI_USE_NIT 1
  32 #   include "nit.h"
  33 #endif
  34 #endif
  35
  36 #ifndef DVBPSI_USE_NIT
  37 #   warning NIT is not supported by your libdvbpsi version
  38 #endif
  39
  40 typedef enum
  41 {
  42     SCAN_NONE,
  43     SCAN_DVB_T,
  44     SCAN_DVB_S,
  45     SCAN_DVB_C,
  46 } scan_type_t;
  47
  48 typedef struct
  49 {
  50     int i_frequency;
  51     int i_symbol_rate;
  52     int i_fec;
  53     char c_polarization;
  54 } scan_dvbs_transponder_t;
  55
  56 typedef struct
  57 {
  58     scan_type_t type;
  59     bool b_exhaustive;
  60     bool b_use_nit;
  61     bool b_free_only;
  62
  63     struct
  64     {
  65         int i_min;
  66         int i_max;
  67         int i_step;
  68
  69         int i_count;    /* Number of frequency test to do */
  70     } frequency;
  71
  72     struct
  73     {
  74         /* Bandwidth should be 6, 7 or 8 */
  75         int i_min;
  76         int i_max;
  77         int i_step;
  78
  79         int i_count;
  80     } bandwidth;
  81
  82     struct
  83     {
  84         char *psz_name;         /* satellite name */
  85         char *psz_path;         /* config file path */
  86
  87         scan_dvbs_transponder_t *p_transponders;
  88         int i_count;
  89     } sat_info;
  90
  91 } scan_parameter_t;
  92
  93 typedef struct
  94 {
  95     int i_frequency;
  96     union
  97     {
  98         int i_bandwidth;
  99         int i_symbol_rate;
 100     };
 101     int i_fec;
 102     char c_polarization;
 103 } scan_configuration_t;
 104
 105 typedef enum
 106 {
 107     SERVICE_UNKNOWN = 0,
 108     SERVICE_DIGITAL_RADIO,
 109     SERVICE_DIGITAL_TELEVISION,
 110     SERVICE_DIGITAL_TELEVISION_AC_SD,
 111     SERVICE_DIGITAL_TELEVISION_AC_HD,
 112 } scan_service_type_t;
 113
 114 typedef struct
 115 {
 116     int  i_program;     /* program number (service id) */
 117     scan_configuration_t cfg;
 118     int i_snr;
 119
 120     scan_service_type_t type;
 121     char *psz_name;     /* channel name in utf8 or NULL */
 122     int  i_channel;     /* -1 if unknown */
 123     bool b_crypted;     /* True if potentially crypted */
 124
 125     int i_network_id;
 126
 127     int i_nit_version;
 128     int i_sdt_version;
 129
 130 } scan_service_t;
 131
 132 typedef struct
 133 {
 134     vlc_object_t *p_obj;
 135
 136     scan_configuration_t cfg;
 137     int i_snr;
 138
 139     dvbpsi_handle pat;
 140     dvbpsi_pat_t *p_pat;
 141     int i_nit_pid;
 142
 143     dvbpsi_handle sdt;
 144     dvbpsi_sdt_t *p_sdt;
 145
 146 #ifdef DVBPSI_USE_NIT
 147     dvbpsi_handle nit;
 148     dvbpsi_nit_t *p_nit;
 149 #endif
 150
 151 } scan_session_t;
 152
 153 typedef struct
 154 {
 155     vlc_object_t *p_obj;
 156     struct dialog_progress_bar_t *p_dialog;
 157     int64_t i_index;
 158     scan_parameter_t parameter;
 159     int64_t i_time_start;
 160
 161     int            i_service;
 162     scan_service_t **pp_service;
 163 } scan_t;
 164
 165
 166 scan_service_t *scan_service_New( int i_program, const scan_configuration_t *p_cfg  );
 167 void scan_service_Delete( scan_service_t *p_srv );
 168
 169 int  scan_Init( vlc_object_t *p_obj, scan_t *p_scan, const scan_parameter_t *p_parameter );
 170 void scan_Clean( scan_t *p_scan );
 171
 172 int scan_Next( scan_t *p_scan, scan_configuration_t *p_cfg );
 173
 174 block_t *scan_GetM3U( scan_t *p_scan );
 175 bool scan_IsCancelled( scan_t *p_scan );
 176
 177 int  scan_session_Init( vlc_object_t *p_obj, scan_session_t *p_session, const scan_configuration_t *p_cfg );
 178 void scan_session_Clean( scan_t *p_scan, scan_session_t *p_session );
 179 bool scan_session_Push( scan_session_t *p_scan, block_t *p_block );
 180 void scan_service_SetSNR( scan_session_t *p_scan, int i_snr );
 181