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 the VideoLAN team
   5  *
   6  * Authors: Laurent Aimar <fenrir@videolan.org>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.    See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA    02111, USA.
  21  *****************************************************************************/
  22
  23 typedef enum
  24 {
  25     SCAN_NONE,
  26     SCAN_DVB_T,
  27     SCAN_DVB_S,
  28     SCAN_DVB_C,
  29 } scan_type_t;
  30
  31 typedef struct
  32 {
  33     scan_type_t type;
  34     bool b_exhaustive;
  35     struct
  36     {
  37         int i_min;
  38         int i_max;
  39         int i_step;
  40
  41         int i_count;    /* Number of frequency test to do */
  42     } frequency;
  43
  44     struct
  45     {
  46         /* Bandwidth should be 6, 7 or 8 */
  47         int i_min;
  48         int i_max;
  49         int i_step;
  50
  51         int i_count;
  52     } bandwidth;
  53
  54 } scan_parameter_t;
  55
  56 typedef struct
  57 {
  58     int i_frequency;
  59     int i_bandwidth;
  60 } scan_configuration_t;
  61
  62 typedef enum
  63 {
  64     SERVICE_UNKNOWN = 0,
  65     SERVICE_DIGITAL_RADIO,
  66     SERVICE_DIGITAL_TELEVISION,
  67     SERVICE_DIGITAL_TELEVISION_AC_SD,
  68     SERVICE_DIGITAL_TELEVISION_AC_HD,
  69 } scan_service_type_t;
  70
  71 typedef struct
  72 {
  73     int  i_program;     /* program number (service id) */
  74     scan_configuration_t cfg;
  75     int i_snr;
  76
  77     scan_service_type_t type;
  78     char *psz_name;     /* channel name in utf8 or NULL */
  79     int  i_channel;     /* -1 if unknown */
  80     bool b_crypted;     /* True if potentially crypted */
  81
  82
  83     int i_network_id;
  84
  85     int i_nit_version;
  86     int i_sdt_version;
  87
  88 } scan_service_t;
  89
  90 typedef struct
  91 {
  92     vlc_object_t *p_obj;
  93
  94     scan_configuration_t cfg;
  95     int i_snr;
  96
  97     dvbpsi_handle pat;
  98     dvbpsi_pat_t *p_pat;
  99     int i_nit_pid;
 100
 101     dvbpsi_handle sdt;
 102     dvbpsi_sdt_t *p_sdt;
 103
 104     dvbpsi_handle nit;
 105     dvbpsi_nit_t *p_nit;
 106
 107 } scan_session_t;
 108
 109 typedef struct
 110 {
 111     vlc_object_t *p_obj;
 112     int64_t i_index;
 113     int i_dialog_id;
 114     scan_parameter_t parameter;
 115     int64_t i_time_start;
 116
 117     int            i_service;
 118     scan_service_t **pp_service;
 119 } scan_t;
 120
 121
 122 scan_service_t *scan_service_New( int i_program, const scan_configuration_t *p_cfg  );
 123 void scan_service_Delete( scan_service_t *p_srv );
 124
 125 int  scan_Init( vlc_object_t *p_obj, scan_t *p_scan, const scan_parameter_t *p_parameter );
 126 void scan_Clean( scan_t *p_scan );
 127
 128 int scan_Next( scan_t *p_scan, scan_configuration_t *p_cfg );
 129
 130 block_t *scan_GetM3U( scan_t *p_scan );
 131 bool scan_IsCancelled( scan_t *p_scan );
 132
 133 int  scan_session_Init( vlc_object_t *p_obj, scan_session_t *p_session, const scan_configuration_t *p_cfg );
 134 void scan_session_Clean( scan_t *p_scan, scan_session_t *p_session );
 135 bool scan_session_Push( scan_session_t *p_scan, block_t *p_block );
 136 void scan_service_SetSNR( scan_session_t *p_scan, int i_snr );
 137