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180 lines
4.7 KiB
C++
180 lines
4.7 KiB
C++
/*
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This file is a part of JRTPLIB
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Copyright (c) 1999-2017 Jori Liesenborgs
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Contact: jori.liesenborgs@gmail.com
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This library was developed at the Expertise Centre for Digital Media
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(http://www.edm.uhasselt.be), a research center of the Hasselt University
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(http://www.uhasselt.be). The library is based upon work done for
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my thesis at the School for Knowledge Technology (Belgium/The Netherlands).
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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IN THE SOFTWARE.
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*/
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#include "rtcpsdesinfo.h"
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namespace qrtplib
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{
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void RTCPSDESInfo::Clear()
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{
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#ifdef RTP_SUPPORT_SDESPRIV
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std::list<SDESPrivateItem *>::const_iterator it;
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for (it = privitems.begin(); it != privitems.end(); ++it)
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delete *it;
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privitems.clear();
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#endif // RTP_SUPPORT_SDESPRIV
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}
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#ifdef RTP_SUPPORT_SDESPRIV
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int RTCPSDESInfo::SetPrivateValue(const uint8_t *prefix, std::size_t prefixlen, const uint8_t *value, std::size_t valuelen)
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{
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std::list<SDESPrivateItem *>::const_iterator it;
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bool found;
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found = false;
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it = privitems.begin();
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while (!found && it != privitems.end())
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{
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uint8_t *p;
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std::size_t l;
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p = (*it)->GetPrefix(&l);
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if (l == prefixlen)
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{
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if (l <= 0)
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found = true;
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else if (memcmp(prefix, p, l) == 0)
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found = true;
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else
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++it;
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}
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else
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++it;
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}
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SDESPrivateItem *item;
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if (found) // replace the value for this entry
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item = *it;
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else // no entry for this prefix found... add it
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{
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if (privitems.size() >= RTP_MAXPRIVITEMS) // too many items present, just ignore it
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return ERR_RTP_SDES_MAXPRIVITEMS;
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int status;
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item = new SDESPrivateItem();
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if ((status = item->SetPrefix(prefix, prefixlen)) < 0)
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{
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delete item;
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return status;
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}
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privitems.push_front(item);
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}
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return item->SetInfo(value, valuelen);
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}
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int RTCPSDESInfo::DeletePrivatePrefix(const uint8_t *prefix, std::size_t prefixlen)
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{
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std::list<SDESPrivateItem *>::iterator it;
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bool found;
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found = false;
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it = privitems.begin();
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while (!found && it != privitems.end())
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{
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uint8_t *p;
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std::size_t l;
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p = (*it)->GetPrefix(&l);
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if (l == prefixlen)
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{
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if (l <= 0)
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found = true;
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else if (memcmp(prefix, p, l) == 0)
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found = true;
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else
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++it;
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}
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else
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++it;
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}
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if (!found)
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return ERR_RTP_SDES_PREFIXNOTFOUND;
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delete *it;
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privitems.erase(it);
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return 0;
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}
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void RTCPSDESInfo::GotoFirstPrivateValue()
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{
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curitem = privitems.begin();
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}
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bool RTCPSDESInfo::GetNextPrivateValue(uint8_t **prefix, std::size_t *prefixlen, uint8_t **value, std::size_t *valuelen)
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{
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if (curitem == privitems.end())
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return false;
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*prefix = (*curitem)->GetPrefix(prefixlen);
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*value = (*curitem)->GetInfo(valuelen);
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++curitem;
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return true;
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}
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bool RTCPSDESInfo::GetPrivateValue(const uint8_t *prefix, std::size_t prefixlen, uint8_t **value, std::size_t *valuelen) const
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{
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std::list<SDESPrivateItem *>::const_iterator it;
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bool found;
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found = false;
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it = privitems.begin();
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while (!found && it != privitems.end())
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{
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uint8_t *p;
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std::size_t l;
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p = (*it)->GetPrefix(&l);
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if (l == prefixlen)
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{
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if (l <= 0)
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found = true;
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else if (memcmp(prefix, p, l) == 0)
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found = true;
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else
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++it;
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}
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else
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++it;
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}
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if (found)
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*value = (*it)->GetInfo(valuelen);
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return found;
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}
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#endif // RTP_SUPPORT_SDESPRIV
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} // end namespace
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