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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.
*
* See ETSI TS 102 366 V1.2.1 Annex F for how to put Ac3 in MP4.
*
* Contributor(s):
* Edward Groenendaal egroenen@cisco.com
*/
#include "src/impl.h"
namespace mp4v2 {
namespace impl {
///////////////////////////////////////////////////////////////////////////////
MP4Ac3Atom::MP4Ac3Atom()
: MP4Atom("ac-3")
{
AddReserved("reserved1", 6); /* 0 */
AddProperty( /* 1 */
new MP4Integer16Property("dataReferenceIndex"));
AddReserved("reserved2", 8); /* 2 */
AddProperty( /* 3 */
new MP4Integer16Property("channelCount"));
AddProperty( /* 4 */
new MP4Integer16Property("sampleSize"));
AddReserved("reserved3", 4); /* 5 */
AddProperty( /* 6 */
new MP4Integer16Property("samplingRate"));
AddReserved("reserved4", 2); /* 7 */
ExpectChildAtom("dac3", Required, OnlyOne);
}
void MP4Ac3Atom::Generate()
{
MP4Atom::Generate();
((MP4Integer16Property*)m_pProperties[1])->SetValue(1); // data-reference-index
((MP4Integer16Property*)m_pProperties[3])->SetValue(2); // channelCount - ignored
((MP4Integer16Property*)m_pProperties[4])->SetValue(0x0010); // sampleSize - ignored
// The user should set the samplingRate as appropriate - and create the dac3 atom
}
///////////////////////////////////////////////////////////////////////////////
}
} // namespace mp4v2::impl
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