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55 lines
1.6 KiB
C++
55 lines
1.6 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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MP4SdpAtom::MP4SdpAtom() : MP4Atom("sdp ")
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{
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AddProperty(
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new MP4StringProperty("sdpText"));
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}
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void MP4SdpAtom::Read()
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{
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// read sdp string, length is implicit in size of atom
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u_int64_t size = GetEnd() - m_pFile->GetPosition();
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char* data = (char*)MP4Malloc(size + 1);
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ASSERT(data != NULL);
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m_pFile->ReadBytes((u_int8_t*)data, size);
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data[size] = '\0';
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((MP4StringProperty*)m_pProperties[0])->SetValue(data);
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MP4Free(data);
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}
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void MP4SdpAtom::Write()
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{
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// since length of string is implicit in size of atom
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// we need to handle this specially, and not write the terminating \0
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MP4StringProperty* pSdp = (MP4StringProperty*)m_pProperties[0];
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const char* sdpText = pSdp->GetValue();
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if (sdpText) {
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pSdp->SetFixedLength((u_int32_t)strlen(sdpText));
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}
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MP4Atom::Write();
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pSdp->SetFixedLength(0);
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}
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