89 lines
2.2 KiB
C++
89 lines
2.2 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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* 3GPP features implementation is based on 3GPP's TS26.234-v5.60,
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* and was contributed by Ximpo Group Ltd.
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*
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* Portions created by Ximpo Group Ltd. are
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* Copyright (C) Ximpo Group Ltd. 2003, 2004. All Rights Reserved.
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*
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* Contributor(s):
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* Ximpo Group Ltd. mp4v2@ximpo.com
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*/
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#include "mp4common.h"
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#define H263_VENDOR 0x6d346970
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MP4D263Atom::MP4D263Atom()
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: MP4Atom("d263")
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{
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AddProperty( /* 0 */
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new MP4Integer32Property("vendor"));
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AddProperty( /* 1 */
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new MP4Integer8Property("decoderVersion"));
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AddProperty( /* 2 */
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new MP4Integer8Property("h263Level"));
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AddProperty( /* 3 */
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new MP4Integer8Property("h263Profile"));
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ExpectChildAtom("bitr", Optional, OnlyOne);
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}
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void MP4D263Atom::Generate()
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{
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MP4Atom::Generate();
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((MP4Integer32Property*)m_pProperties[0])->SetValue(H263_VENDOR);
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((MP4Integer8Property*)m_pProperties[1])->SetValue(1);
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}
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void MP4D263Atom::Write()
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{
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// Check whether we have valid values in the bitr atom
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// (if it exists, of course)
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MP4Atom* bitrAtom = FindAtomMP4("d263.bitr");
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if (bitrAtom) {
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u_int32_t avgBitrate;
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u_int32_t maxBitrate;
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MP4Integer32Property* pProp;
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bitrAtom->FindProperty("bitr.avgBitrate",
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(MP4Property**)&pProp,
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NULL);
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ASSERT(pProp);
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avgBitrate = pProp->GetValue();
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bitrAtom->FindProperty("bitr.maxBitrate",
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(MP4Property**)&pProp,
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NULL);
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ASSERT(pProp);
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maxBitrate = pProp->GetValue();
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if(!maxBitrate && !avgBitrate) {
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DeleteChildAtom(bitrAtom);
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}
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}
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MP4Atom::Write();
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}
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