| /* |
| * libjingle |
| * Copyright 2004--2005, Google Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "talk/base/logging.h" |
| #include "talk/session/phone/phonesessionclient.h" |
| #include "talk/xmpp/constants.h" |
| #include "talk/xmllite/qname.h" |
| namespace { |
| |
| const std::string NS_PHONE("http://www.google.com/session/phone"); |
| const std::string NS_EMPTY(""); |
| |
| const buzz::QName QN_PHONE_DESCRIPTION(true, NS_PHONE, "description"); |
| const buzz::QName QN_PHONE_PAYLOADTYPE(true, NS_PHONE, "payload-type"); |
| const buzz::QName QN_PHONE_PAYLOADTYPE_ID(true, NS_EMPTY, "id"); |
| const buzz::QName QN_PHONE_PAYLOADTYPE_NAME(true, NS_EMPTY, "name"); |
| const buzz::QName QN_PHONE_PAYLOADTYPE_RATE(true, NS_EMPTY, "clockrate"); |
| const buzz::QName QN_PHONE_PAYLOADTYPE_BITRATE(true, NS_EMPTY, "bitrate"); |
| const buzz::QName QN_PHONE_PAYLOADTYPE_CHANNELS(true, NS_EMPTY, "channels"); |
| } |
| |
| namespace cricket { |
| |
| PhoneSessionClient::PhoneSessionClient( |
| const buzz::Jid& jid, SessionManager *manager) |
| : jid_(jid), session_manager_(manager) { |
| // No call to start, and certainly no call with focus |
| focus_call_ = NULL; |
| |
| // Start up the channel manager on a worker thread |
| channel_manager_ = new ChannelManager(session_manager_->worker_thread()); |
| |
| // Register ourselves as the handler of phone sessions. |
| session_manager_->AddClient(NS_PHONE, this); |
| } |
| |
| |
| PhoneSessionClient::~PhoneSessionClient() { |
| // Destroy all calls |
| std::map<uint32, Call *>::iterator it; |
| while (calls_.begin() != calls_.end()) { |
| std::map<uint32, Call *>::iterator it = calls_.begin(); |
| DestroyCall((*it).second); |
| } |
| |
| // Delete channel manager. This will wait for the channels to exit |
| delete channel_manager_; |
| |
| // Remove ourselves from the client map. |
| session_manager_->RemoveClient(NS_PHONE); |
| } |
| |
| PhoneSessionDescription* PhoneSessionClient::CreateOfferSessionDescription() { |
| PhoneSessionDescription* session_desc = new PhoneSessionDescription(); |
| |
| |
| MediaEngine *me = channel_manager_->media_engine(); |
| std::vector<Codec> codecs = me->codecs(); |
| std::vector<Codec>::iterator i; |
| for (i = codecs.begin(); i < codecs.end(); i++) |
| session_desc->AddCodec(*i); |
| |
| session_desc->Sort(); |
| return session_desc; |
| } |
| |
| PhoneSessionDescription* PhoneSessionClient::CreateAcceptSessionDescription(const SessionDescription* offer) { |
| const PhoneSessionDescription* offer_desc = |
| static_cast<const PhoneSessionDescription*>(offer); |
| PhoneSessionDescription* accept_desc = new PhoneSessionDescription(); |
| std::vector<Codec> codecs = channel_manager_->media_engine()->codecs(); |
| std::vector<Codec>::iterator iter; |
| for (unsigned int i = 0; i < offer_desc->codecs().size(); ++i) { |
| if (channel_manager_->media_engine()->FindCodec(offer_desc->codecs()[i])) |
| accept_desc->AddCodec(offer_desc->codecs()[i]); |
| } |
| |
| accept_desc->Sort(); |
| return accept_desc; |
| } |
| |
| const SessionDescription *PhoneSessionClient::CreateSessionDescription(const buzz::XmlElement *element) { |
| PhoneSessionDescription* desc = new PhoneSessionDescription(); |
| |
| const buzz::XmlElement* payload_type = element->FirstNamed(QN_PHONE_PAYLOADTYPE); |
| int num_payload_types = 0; |
| |
| while (payload_type) { |
| if (payload_type->HasAttr(QN_PHONE_PAYLOADTYPE_ID)) { |
| int id = atoi(payload_type->Attr(QN_PHONE_PAYLOADTYPE_ID).c_str()); |
| |
| std::string name = ""; |
| if (payload_type->HasAttr(QN_PHONE_PAYLOADTYPE_NAME)) |
| name = payload_type->Attr(QN_PHONE_PAYLOADTYPE_NAME); |
| |
| int clockrate = 0; |
| if (payload_type->HasAttr(QN_PHONE_PAYLOADTYPE_RATE)) |
| clockrate = atoi(payload_type->Attr(QN_PHONE_PAYLOADTYPE_RATE).c_str()); |
| |
| int bitrate = 0; |
| if (payload_type->HasAttr(QN_PHONE_PAYLOADTYPE_BITRATE)) |
| bitrate = atoi(payload_type->Attr(QN_PHONE_PAYLOADTYPE_BITRATE).c_str()); |
| |
| int channels = 1; |
| if (payload_type->HasAttr(QN_PHONE_PAYLOADTYPE_CHANNELS)) |
| channels = atoi(payload_type->Attr(QN_PHONE_PAYLOADTYPE_CHANNELS).c_str()); |
| |
| desc->AddCodec(Codec(id, name, clockrate, bitrate, channels, 0)); |
| } |
| |
| payload_type = payload_type->NextNamed(QN_PHONE_PAYLOADTYPE); |
| num_payload_types += 1; |
| } |
| |
| // For backward compatability, we can assume the other client is (an old |
| // version of Talk) if it has no payload types at all. |
| if (num_payload_types == 0) { |
| desc->AddCodec(Codec(103, "ISAC", 16000, -1, 1, 1)); |
| desc->AddCodec(Codec(0, "PCMU", 8000, 64000, 1, 0)); |
| } |
| |
| return desc; |
| } |
| |
| buzz::XmlElement *PhoneSessionClient::TranslateSessionDescription(const SessionDescription *_session_desc) { |
| const PhoneSessionDescription* session_desc = |
| static_cast<const PhoneSessionDescription*>(_session_desc); |
| buzz::XmlElement* description = new buzz::XmlElement(QN_PHONE_DESCRIPTION, true); |
| |
| |
| for (size_t i = 0; i < session_desc->codecs().size(); ++i) { |
| buzz::XmlElement* payload_type = new buzz::XmlElement(QN_PHONE_PAYLOADTYPE, true); |
| |
| char buf[32]; |
| sprintf(buf, "%d", session_desc->codecs()[i].id); |
| payload_type->AddAttr(QN_PHONE_PAYLOADTYPE_ID, buf); |
| |
| payload_type->AddAttr(QN_PHONE_PAYLOADTYPE_NAME, |
| session_desc->codecs()[i].name.c_str()); |
| |
| if (session_desc->codecs()[i].clockrate > 0) { |
| sprintf(buf, "%d", session_desc->codecs()[i].clockrate); |
| payload_type->AddAttr(QN_PHONE_PAYLOADTYPE_RATE, buf); |
| } |
| |
| if (session_desc->codecs()[i].channels > 1) { |
| sprintf(buf, "%d", session_desc->codecs()[i].channels); |
| payload_type->AddAttr(QN_PHONE_PAYLOADTYPE_CHANNELS, buf); |
| } |
| |
| if (session_desc->codecs()[i].bitrate > 0) { |
| sprintf(buf, "%d", session_desc->codecs()[i].bitrate); |
| payload_type->AddAttr(QN_PHONE_PAYLOADTYPE_BITRATE, buf); |
| } |
| |
| description->AddElement(payload_type); |
| } |
| |
| return description; |
| } |
| |
| Call *PhoneSessionClient::CreateCall() { |
| Call *call = new Call(this); |
| calls_[call->id()] = call; |
| SignalCallCreate(call); |
| return call; |
| } |
| |
| void PhoneSessionClient::OnSessionCreate(Session *session, |
| bool received_initiate) { |
| if (received_initiate) { |
| session->SignalState.connect(this, &PhoneSessionClient::OnSessionState); |
| |
| Call *call = CreateCall(); |
| session_map_[session->id()] = call; |
| call->AddSession(session); |
| } |
| } |
| |
| void PhoneSessionClient::OnSessionState(Session *session, |
| Session::State state) { |
| if (state == Session::STATE_RECEIVEDINITIATE) { |
| // If our accept would have no codecs, then we must reject this call. |
| PhoneSessionDescription* accept_desc = |
| CreateAcceptSessionDescription(session->remote_description()); |
| if (accept_desc->codecs().size() == 0) { |
| // TODO: include an error description with the rejection. |
| session->Reject(); |
| } |
| delete accept_desc; |
| } |
| } |
| |
| void PhoneSessionClient::DestroyCall(Call *call) { |
| // Change focus away, signal destruction |
| |
| if (call == focus_call_) |
| SetFocus(NULL); |
| SignalCallDestroy(call); |
| |
| // Remove it from calls_ map and delete |
| |
| std::map<uint32, Call *>::iterator it = calls_.find(call->id()); |
| if (it != calls_.end()) |
| calls_.erase(it); |
| |
| delete call; |
| } |
| |
| void PhoneSessionClient::OnSessionDestroy(Session *session) { |
| // Find the call this session is in, remove it |
| |
| std::map<SessionID, Call *>::iterator it = session_map_.find(session->id()); |
| assert(it != session_map_.end()); |
| if (it != session_map_.end()) { |
| Call *call = (*it).second; |
| session_map_.erase(it); |
| call->RemoveSession(session); |
| } |
| } |
| |
| Call *PhoneSessionClient::GetFocus() { |
| return focus_call_; |
| } |
| |
| void PhoneSessionClient::SetFocus(Call *call) { |
| Call *old_focus_call = focus_call_; |
| if (focus_call_ != call) { |
| if (focus_call_ != NULL) |
| focus_call_->EnableChannels(false); |
| focus_call_ = call; |
| if (focus_call_ != NULL) |
| focus_call_->EnableChannels(true); |
| SignalFocus(focus_call_, old_focus_call); |
| } |
| } |
| |
| void PhoneSessionClient::JoinCalls(Call *call_to_join, Call *call) { |
| // Move all sessions from call to call_to_join, delete call. |
| // If call_to_join has focus, added sessions should have enabled channels. |
| |
| if (focus_call_ == call) |
| SetFocus(NULL); |
| call_to_join->Join(call, focus_call_ == call_to_join); |
| DestroyCall(call); |
| } |
| |
| Session *PhoneSessionClient::CreateSession(Call *call) { |
| Session *session = session_manager_->CreateSession(jid().Str(), NS_PHONE); |
| session_map_[session->id()] = call; |
| return session; |
| } |
| |
| } |