asn1_createVisible.c

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/*******************************************************************************
 * Copyright © 2014 The DTVKit Open Software Foundation Ltd (www.dtvkit.org)
 * Copyright © 2004 Ocean Blue Software Ltd
 * Copyright © 2000 Koninklijke Philips Electronics N.V
 *
 * This file is part of a DTVKit Software Component
 * You are permitted to copy, modify or distribute this file subject to the terms
 * of the DTVKit 1.0 Licence which can be found in licence.txt or at www.dtvkit.org
 * 
 * THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
 * EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
 * 
 * If you or your organisation is not a member of DTVKit then you have access
 * to this source code outside of the terms of the licence agreement
 * and you are expected to delete this and any associated files immediately.
 * Further information on DTVKit, membership and terms can be found at www.dtvkit.org
 *******************************************************************************/
/*---includes for this file--------------------------------------------------*/
#include <stdio.h>
#include "vpa1_sys.h"
#include "vpa1_tgs.h"
#include "fpa1_syn.h"
#include "asn1_sys.h"

#include "mh5base.h"
#include "mh5group.h"
#include "mh5visible.h"
#include "asn1_createExtras.h"
#include "asn1_createIngredient.h"
#include "asn1_createGroup.h"
#include "asn1_createVisible.h"

/*---constant definitions for this file--------------------------------------*/


/*---local typedef structs for this file-------------------------------------*/

/*---local (static) variable declarations for this file----------------------*/

/*---local function definitions----------------------------------------------*/

/*---global function definitions---------------------------------------------*/

asnErr asn1_decodeVisible(fpa1_syntaxList *listPtr, MHEG5Visible *visible)
{
   asnErr errVal = 0;
   fpa1_syntaxList *currItem;

   DPL5((">> asn1_decodeVisible(%X,%X)\n", listPtr, visible));

   assert(visible);
   assert(listPtr);

   currItem = listPtr->children;

   /* defaults */
   visible->originalPosition[0] = 0;
   visible->originalPosition[1] = 0;

   /* searches current set of tags for local tags */
   while (currItem != NULL)
   {
      /* most objects will have more than one local tag */
      switch (currItem->tag)
      {
         case OBOXSIZE:
            if ((currItem->children != NULL) && (currItem->children->next != NULL))
            {
               visible->originalBoxSize[0] = currItem->children->data.intData;
               visible->originalBoxSize[1] = currItem->children->next->data.intData;
            }
            else
            {
               errVal |= 0x01;
            }
            break;
         case OPOSITION:
            if ((currItem->children != NULL) && (currItem->children->next != NULL))
            {
               visible->originalPosition[0] = currItem->children->data.intData;
               visible->originalPosition[1] = currItem->children->next->data.intData;
            }
            else
            {
               errVal |= 0x01;
            }
            break;
#ifndef ASN1UKPROFILE
         case OPALREF: /* Palette not in UK1 profile */
            if (currItem->children->tag == EXTERNAL_REFERENCE_TYPE)
            {
               errVal |= asn1_decodeOctetString(currItem->children->children,
                     (MHEG5String *)&visible->originalPaletteRefGROUPID);
               errVal |= asn1_decodeInteger(currItem->children->children->next,
                     &visible->originalPaletteRefID);
            }
            else /* must be Integer type */
            {
               visible->originalPaletteRefGROUPID.len = 0;
               visible->originalPaletteRefGROUPID.Ptr.group = asn1_mainGroupPtr;
               errVal |= asn1_decodeInteger(currItem->children, &visible->originalPaletteRefID);
            }
            break;
#endif /* ASN1UKPROFILE */
         default:
            break;
      }
      currItem = currItem->next;
   }
   /* decode inherited tags */
   errVal |= asn1_decodeIngredient(listPtr, &visible->ingredient);

#if (DPLEVEL >= 2)
   if (errVal != 0)
   {
      DPL2(("WARNING:[ASN.1] asn1_decodeVisible() returns errVal = %d\n", errVal));
   }
#endif /* DPLEVEL >= 2 */

   DPL5(("<< asn1_decodeVisible() Returns %d\n", errVal));

   return errVal;
}