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/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is MPEG4IP.
*
* The Initial Developer of the Original Code is Cisco Systems Inc.
* Portions created by Cisco Systems Inc. are
* Copyright (C) Cisco Systems Inc. 2001. All Rights Reserved.
*
* Contributor(s):
* Dave Mackie dmackie@cisco.com
*/
#include "mp4common.h"
MP4DrefAtom::MP4DrefAtom()
: MP4Atom("dref")
{
AddVersionAndFlags();
MP4Integer32Property* pCount =
new MP4Integer32Property("entryCount");
pCount->SetReadOnly();
AddProperty(pCount);
ExpectChildAtom("url ", Optional, Many);
ExpectChildAtom("urn ", Optional, Many);
ExpectChildAtom("alis", Optional, Many);
}
void MP4DrefAtom::Read()
{
/* do the usual read */
MP4Atom::Read();
// check that number of children == entryCount
MP4Integer32Property* pCount =
(MP4Integer32Property*)m_pProperties[2];
if (m_pChildAtoms.Size() != pCount->GetValue()) {
//VERBOSE_READ(GetVerbosity(), MP4Printf("Warning: dref inconsistency with number of entries"));
/* fix it */
pCount->SetReadOnly(false);
pCount->SetValue(m_pChildAtoms.Size());
pCount->SetReadOnly(true);
}
}
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