ext/closedcaption/sampling_par.h

   1 /*
   2  *  libzvbi -- Raw VBI sampling parameters
   3  *
   4  *  Copyright (C) 2000-2004 Michael H. Schimek
   5  *
   6  *  This library is free software; you can redistribute it and/or
   7  *  modify it under the terms of the GNU Library General Public
   8  *  License as published by the Free Software Foundation; either
   9  *  version 2 of the License, or (at your option) any later version.
  10  *
  11  *  This library is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  *  Library General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU Library General Public
  17  *  License along with this library; if not, write to the
  18  *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  *  Boston, MA  02110-1301  USA.
  20  */
  21
  22 /* $Id: sampling_par.h,v 1.9 2008-02-24 14:17:06 mschimek Exp $ */
  23
  24 #ifndef __SAMPLING_PAR_H__
  25 #define __SAMPLING_PAR_H__
  26
  27 #include "decoder.h"
  28
  29 VBI_BEGIN_DECLS
  30
  31 /* Public */
  32
  33 typedef vbi_raw_decoder vbi_sampling_par;
  34
  35 #define VBI_VIDEOSTD_SET_EMPTY 0
  36 #define VBI_VIDEOSTD_SET_PAL_BG 1
  37 #define VBI_VIDEOSTD_SET_625_50 1
  38 #define VBI_VIDEOSTD_SET_525_60 2
  39 #define VBI_VIDEOSTD_SET_ALL 3
  40 typedef uint64_t vbi_videostd_set;
  41
  42 /* Private */
  43
  44 extern vbi_service_set
  45 vbi_sampling_par_from_services (vbi_sampling_par *    sp,
  46                                 unsigned int *         max_rate,
  47                                 vbi_videostd_set      videostd_set,
  48                                 vbi_service_set       services);
  49 extern vbi_service_set
  50 vbi_sampling_par_check_services
  51                                 (const vbi_sampling_par *sp,
  52                                  vbi_service_set       services,
  53                                  unsigned int           strict)
  54   _vbi_pure;
  55
  56 extern vbi_videostd_set
  57 _vbi_videostd_set_from_scanning (int                    scanning);
  58
  59 extern vbi_service_set
  60 _vbi_sampling_par_from_services_log
  61                                 (vbi_sampling_par *    sp,
  62                                  unsigned int *         max_rate,
  63                                  vbi_videostd_set      videostd_set,
  64                                  vbi_service_set       services,
  65                                  _vbi_log_hook *       log);
  66 extern vbi_service_set
  67 _vbi_sampling_par_check_services_log
  68                                 (const vbi_sampling_par *sp,
  69                                  vbi_service_set       services,
  70                                  unsigned int           strict,
  71                                  _vbi_log_hook *       log)
  72   _vbi_pure;
  73 extern vbi_bool
  74 _vbi_sampling_par_valid_log    (const vbi_sampling_par *sp,
  75                                  _vbi_log_hook *       log)
  76   _vbi_pure;
  77
  78 VBI_END_DECLS
  79
  80 #endif /* __SAMPLING_PAR_H__ */
  81
  82 /*
  83 Local variables:
  84 c-set-style: K&R
  85 c-basic-offset: 8
  86 End:
  87 */