src/api/subtitle_type_get.c

   1 /* libquvi
   2  * Copyright (C) 2013  Toni Gundogdu <legatvs@gmail.com>
   3  *
   4  * This file is part of libquvi <http://quvi.sourceforge.net/>.
   5  *
   6  * This library is free software: you can redistribute it and/or
   7  * modify it under the terms of the GNU Affero General Public
   8  * License as published by the Free Software Foundation, either
   9  * version 3 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
  14  * GNU Affero General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Affero General
  17  * Public License along with this library.  If not, see
  18  * <http://www.gnu.org/licenses/>.
  19  */
  20
  21 /** @file subtitle_type_get.c */
  22
  23 #include "config.h"
  24
  25 #include <glib.h>
  26
  27 #include "quvi.h"
  28 /* -- */
  29 #include "_quvi_s.h"
  30 #include "_quvi_subtitle_s.h"
  31
  32 static QuviError _get(_quvi_subtitle_type_t qst,
  33                       const QuviSubtitleTypeProperty n, ...)
  34 {
  35   QuviError rc;
  36   gdouble *dp;
  37   va_list arg;
  38   gchar **sp;
  39   glong *lp;
  40   gint type;
  41
  42   va_start(arg, n);
  43   type = QUVI_SUBTITLE_PROPERTY_TYPE_MASK & (gint) n;
  44
  45   rc = QUVI_OK;
  46   dp = NULL;
  47   sp = NULL;
  48   lp = NULL;
  49
  50   switch (type)
  51     {
  52     case QUVI_MEDIA_PROPERTY_TYPE_STRING:
  53       sp = va_arg(arg, gchar**);
  54       if (sp == NULL)
  55         rc = QUVI_ERROR_INVALID_ARG;
  56       break;
  57
  58     case QUVI_MEDIA_PROPERTY_TYPE_LONG:
  59       lp = va_arg(arg, glong*);
  60       if (lp == NULL)
  61         rc = QUVI_ERROR_INVALID_ARG;
  62       break;
  63
  64     case QUVI_MEDIA_PROPERTY_TYPE_DOUBLE:
  65       dp = va_arg(arg, gdouble*);
  66       if (dp == NULL)
  67         rc = QUVI_ERROR_INVALID_ARG;
  68       break;
  69
  70     default:
  71       rc = QUVI_ERROR_INVALID_ARG;
  72       break;
  73     }
  74   va_end(arg);
  75
  76   if (rc != QUVI_OK)
  77     return (rc);
  78
  79   switch (n)
  80     {
  81       /*
  82        * NOTE: Advances to the first item in the 'type' list if the
  83        * current pointer is still set to NULL.
  84        */
  85
  86     case QUVI_SUBTITLE_TYPE_PROPERTY_FORMAT:
  87       *dp = qst->format;
  88       break;
  89
  90     case QUVI_SUBTITLE_TYPE_PROPERTY_TYPE:
  91       *dp = qst->type;
  92       break;
  93
  94     default:
  95       rc = QUVI_ERROR_INVALID_ARG;
  96       break;
  97     }
  98   return (rc);
  99 }
 100
 101 /** @brief Return a subtitle property
 102 @sa @ref parse_subtitle
 103 @ingroup subprop
 104 */
 105 void quvi_subtitle_type_get(quvi_subtitle_type_t handle,
 106                             QuviSubtitleTypeProperty n, ...)
 107 {
 108   _quvi_subtitle_type_t qst;
 109   va_list arg;
 110   gpointer p;
 111   _quvi_t q;
 112
 113   /* If G_DISABLE_CHECKS is defined then the check is not performed. */
 114   g_return_if_fail(handle != NULL);
 115
 116   va_start(arg, n);
 117   p = va_arg(arg, gpointer);
 118   va_end(arg);
 119
 120   qst = (_quvi_subtitle_type_t) handle;
 121   q = qst->handle.quvi;
 122
 123   q->status.rc = _get(qst, n, p);
 124 }
 125
 126 /* vim: set ts=2 sw=2 tw=72 expandtab: */