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81 lines
1.9 KiB
C++
81 lines
1.9 KiB
C++
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/*
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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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MP4ElstAtom::MP4ElstAtom()
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: MP4Atom("elst")
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{
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AddVersionAndFlags();
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MP4Integer32Property* pCount =
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new MP4Integer32Property("entryCount");
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AddProperty(pCount);
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MP4TableProperty* pTable = new MP4TableProperty("entries", pCount);
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AddProperty(pTable);
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}
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void MP4ElstAtom::AddProperties(u_int8_t version)
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{
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MP4TableProperty* pTable = (MP4TableProperty*)m_pProperties[3];
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if (version == 1) {
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pTable->AddProperty(
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new MP4Integer64Property("segmentDuration"));
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pTable->AddProperty(
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new MP4Integer64Property("mediaTime"));
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} else {
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pTable->AddProperty(
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new MP4Integer32Property("segmentDuration"));
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pTable->AddProperty(
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new MP4Integer32Property("mediaTime"));
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}
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pTable->AddProperty(
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new MP4Integer16Property("mediaRate"));
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pTable->AddProperty(
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new MP4Integer16Property("reserved"));
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}
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void MP4ElstAtom::Generate()
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{
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SetVersion(0);
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AddProperties(GetVersion());
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MP4Atom::Generate();
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}
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void MP4ElstAtom::Read()
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{
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/* read atom version */
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ReadProperties(0, 1);
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/* need to create the properties based on the atom version */
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AddProperties(GetVersion());
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/* now we can read the remaining properties */
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ReadProperties(1);
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Skip(); // to end of atom
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}
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