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_initTags(mk_Writer *w)
  27 {
  28         mk_Context *targets;
  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                 /* Targets */
  38                 if ((targets = mk_createContext(w, w->tag, MATROSKA_ID_TARGETS)) == NULL)
  39                         return -1;
  40                 /* TargetTypeValue */
  41                 CHECK(mk_writeUInt(targets, MATROSKA_ID_TARGETTYPEVALUE, MK_TARGETTYPE_MOVIE)); /* Album/Movie/Episode */
  42                 CHECK(mk_closeContext(targets, 0));
  43         }
  44
  45         return 0;
  46 }
  47
  48 int mk_createTagSimple(mk_Writer * w, char *tag_id, char *value)
  49 {
  50         mk_Context *simple;
  51
  52         CHECK(mk_initTags(w));
  53
  54         /* SimpleTag */
  55         if ((simple = mk_createContext(w, w->tag, MATROSKA_ID_SIMPLETAG)) == NULL)
  56                 return -1;
  57
  58         CHECK(mk_writeStr(simple, MATROSKA_ID_TAGNAME, tag_id));        /* TagName */
  59         CHECK(mk_writeStr(simple, MATROSKA_ID_TAGSTRING, value));       /* TagString */
  60         CHECK(mk_closeContext(simple, 0));
  61
  62         return 0;
  63 }
  64
  65 int mk_createTagSimpleBin(mk_Writer * w, char *tag_id, const void *data, unsigned size)
  66 {
  67         mk_Context *simple;
  68
  69         CHECK(mk_initTags(w));
  70
  71         /* SimpleTag */
  72         if ((simple = mk_createContext(w, w->tag, MATROSKA_ID_SIMPLETAG)) == NULL)
  73                 return -1;
  74
  75         /* TagName */
  76         CHECK(mk_writeStr(simple, MATROSKA_ID_TAGNAME, tag_id));
  77         /* TagBinary */
  78         CHECK(mk_writeBin(simple, MATROSKA_ID_TAGBINARY, data, size));
  79         CHECK(mk_closeContext(simple, 0));
  80
  81         return 0;
  82 }
  83
  84 int mk_writeTags(mk_Writer * w)
  85 {
  86         if ((w->tags == NULL) || (w->tag == NULL))
  87                 return -1;
  88         CHECK(mk_closeContext(w->tag, 0));
  89         CHECK(mk_closeContext(w->tags, 0));
  90
  91         return 0;
  92 }