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