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60 lines
1.6 KiB
C++
60 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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MP4Mp4aAtom::MP4Mp4aAtom()
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: MP4Atom("mp4a")
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{
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AddReserved("reserved1", 6); /* 0 */
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AddProperty( /* 1 */
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new MP4Integer16Property("dataReferenceIndex"));
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AddReserved("reserved2", 16); /* 2 */
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AddProperty( /* 3 */
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new MP4Integer16Property("timeScale"));
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AddReserved("reserved3", 2); /* 4 */
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ExpectChildAtom("esds", Required, OnlyOne);
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}
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void MP4Mp4aAtom::Generate()
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{
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MP4Atom::Generate();
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((MP4Integer16Property*)m_pProperties[1])->SetValue(1);
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// property reserved2 has non-zero fixed values
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static u_int8_t reserved2[16] = {
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x02, 0x00, 0x10,
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0x00, 0x00, 0x00, 0x00,
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};
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m_pProperties[2]->SetReadOnly(false);
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((MP4BytesProperty*)m_pProperties[2])->
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SetValue(reserved2, sizeof(reserved2));
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m_pProperties[2]->SetReadOnly(true);
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}
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