src/tags.c

   1 /*****************************************************************************
   2  * tags.c:
   3  *****************************************************************************
   4  * Copyright (C) 2007 libmkv
   5  *
   6  * Authors: John A. Stebbins
   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 #include "config.h"
  23 #include "libmkv.h"
  24 #include "matroska.h"
  25
  26 int mk_createStringTag(mk_Writer * w, char *tag_id, char *value)
  27 {
  28         mk_Context *simple;
  29
  30         if (w->tags == NULL) {
  31                 /* Tags */
  32                 if ((w->tags = mk_createContext(w, w->root, MATROSKA_ID_TAGS)) == NULL)
  33                         return -1;
  34                 /* Tag */
  35                 if ((w->tag = mk_createContext(w, w->tags, MATROSKA_ID_TAG)) == NULL)
  36                         return -1;
  37         }
  38         /* SimpleTag */
  39         if ((simple = mk_createContext(w, w->tag, MATROSKA_ID_SIMPLETAG)) == NULL)
  40                 return -1;
  41
  42         CHECK(mk_writeStr(simple, MATROSKA_ID_TAGNAME, tag_id));        /* TagName */
  43         CHECK(mk_writeStr(simple, MATROSKA_ID_TAGSTRING, value));       /* TagString */
  44         CHECK(mk_closeContext(simple, 0));
  45
  46         return 0;
  47 }
  48
  49 int mk_writeTags(mk_Writer * w)
  50 {
  51         if ((w->tags == NULL) || (w->tag == NULL))
  52                 return -1;
  53         CHECK(mk_closeContext(w->tag, 0));
  54         CHECK(mk_closeContext(w->tags, 0));
  55
  56         return 0;
  57 }