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63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is MPEG4IP.
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*
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* The Initial Developer of the Original Code is Cisco Systems Inc.
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* Portions created by Cisco Systems Inc. are
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* Copyright (C) Cisco Systems Inc. 2001. All Rights Reserved.
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*
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* Contributor(s):
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* Dave Mackie dmackie@cisco.com
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*/
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#include "mp4common.h"
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MP4UrlAtom::MP4UrlAtom(const char *type)
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: MP4Atom(type)
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{
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AddVersionAndFlags();
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AddProperty(new MP4StringProperty("location"));
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}
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void MP4UrlAtom::Read()
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{
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// read the version and flags properties
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ReadProperties(0, 2);
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// check if self-contained flag is set
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if (!(GetFlags() & 1)) {
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// if not then read url location
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ReadProperties(2);
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}
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Skip(); // to end of atom
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}
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void MP4UrlAtom::Write()
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{
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MP4StringProperty* pLocationProp =
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(MP4StringProperty*)m_pProperties[2];
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// if no url location has been set
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// then set self-contained flag
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// and don't attempt to write anything
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if (pLocationProp->GetValue() == NULL) {
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SetFlags(GetFlags() | 1);
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pLocationProp->SetImplicit(true);
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} else {
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SetFlags(GetFlags() & 0xFFFFFE);
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pLocationProp->SetImplicit(false);
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}
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// write atom as usual
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MP4Atom::Write();
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}
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