ref: e8a40038cfdeeb7eb764203dda2613faf96f4709
dir: /common/mp4v2/atom_sdp.cpp/
/*
* 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"
MP4SdpAtom::MP4SdpAtom() : MP4Atom("sdp ")
{
AddProperty(
new MP4StringProperty("sdpText"));
}
void MP4SdpAtom::Read()
{
// read sdp string, length is implicit in size of atom
u_int64_t size = GetEnd() - m_pFile->GetPosition();
char* data = (char*)MP4Malloc(size + 1);
m_pFile->ReadBytes((u_int8_t*)data, size);
data[size] = '\0';
((MP4StringProperty*)m_pProperties[0])->SetValue(data);
MP4Free(data);
}
void MP4SdpAtom::Write()
{
// since length of string is implicit in size of atom
// we need to handle this specially, and not write the terminating \0
MP4StringProperty* pSdp = (MP4StringProperty*)m_pProperties[0];
const char* sdpText = pSdp->GetValue();
if (sdpText) {
pSdp->SetFixedLength(strlen(sdpText));
}
MP4Atom::Write();
pSdp->SetFixedLength(0);
}