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