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/*
* 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.
*/
#ifndef TALK_SESSION_PHONE_MEDIASESSIONCLIENT_H_
#define TALK_SESSION_PHONE_MEDIASESSIONCLIENT_H_
#include <string>
#include <vector>
#include <map>
#include <algorithm>
#include "talk/session/phone/call.h"
#include "talk/session/phone/channelmanager.h"
#include "talk/session/phone/cryptoparams.h"
#include "talk/base/sigslot.h"
#include "talk/base/sigslotrepeater.h"
#include "talk/base/messagequeue.h"
#include "talk/base/thread.h"
#include "talk/p2p/base/sessionmanager.h"
#include "talk/p2p/base/session.h"
#include "talk/p2p/base/sessionclient.h"
#include "talk/p2p/base/sessiondescription.h"
namespace cricket {
class Call;
class SessionDescription;
typedef std::vector<AudioCodec> AudioCodecs;
typedef std::vector<VideoCodec> VideoCodecs;
class MediaSessionClient: public SessionClient, public sigslot::has_slots<> {
public:
MediaSessionClient(const buzz::Jid& jid, SessionManager *manager);
// Alternative constructor, allowing injection of media_engine
// and device_manager.
MediaSessionClient(const buzz::Jid& jid, SessionManager *manager,
MediaEngine* media_engine, DeviceManager* device_manager);
~MediaSessionClient();
const buzz::Jid &jid() const { return jid_; }
SessionManager* session_manager() const { return session_manager_; }
ChannelManager* channel_manager() const { return channel_manager_; }
int GetCapabilities() { return channel_manager_->GetCapabilities(); }
Call *CreateCall(bool video = false, bool mux = false);
void DestroyCall(Call *call);
Call *GetFocus();
void SetFocus(Call *call);
void JoinCalls(Call *call_to_join, Call *call);
bool GetAudioInputDevices(std::vector<std::string>* names) {
return channel_manager_->GetAudioInputDevices(names);
}
bool GetAudioOutputDevices(std::vector<std::string>* names) {
return channel_manager_->GetAudioOutputDevices(names);
}
bool GetVideoCaptureDevices(std::vector<std::string>* names) {
return channel_manager_->GetVideoCaptureDevices(names);
}
bool SetAudioOptions(const std::string& in_name, const std::string& out_name,
int opts) {
return channel_manager_->SetAudioOptions(in_name, out_name, opts);
}
bool SetOutputVolume(int level) {
return channel_manager_->SetOutputVolume(level);
}
bool SetVideoOptions(const std::string& cam_device) {
return channel_manager_->SetVideoOptions(cam_device);
}
sigslot::signal2<Call *, Call *> SignalFocus;
sigslot::signal1<Call *> SignalCallCreate;
sigslot::signal1<Call *> SignalCallDestroy;
sigslot::repeater0<> SignalDevicesChange;
SessionDescription* CreateOffer(bool video = false, bool set_ssrc = false);
SessionDescription* CreateAnswer(const SessionDescription* offer);
private:
void Construct();
void OnSessionCreate(Session *session, bool received_initiate);
void OnSessionState(BaseSession *session, BaseSession::State state);
void OnSessionDestroy(Session *session);
virtual bool ParseContent(SignalingProtocol protocol,
const buzz::XmlElement* elem,
const ContentDescription** content,
ParseError* error);
virtual bool WriteContent(SignalingProtocol protocol,
const ContentDescription* content,
buzz::XmlElement** elem,
WriteError* error);
Session *CreateSession(Call *call);
buzz::Jid jid_;
SessionManager* session_manager_;
Call *focus_call_;
ChannelManager *channel_manager_;
std::map<uint32, Call *> calls_;
std::map<std::string, Call *> session_map_;
friend class Call;
};
enum MediaType {
MEDIA_TYPE_AUDIO,
MEDIA_TYPE_VIDEO
};
class MediaContentDescription : public ContentDescription {
public:
MediaContentDescription() : ssrc_(0), ssrc_set_(false), rtcp_mux_(false),
rtp_headers_disabled_(false) {}
virtual MediaType type() const = 0;
uint32 ssrc() const { return ssrc_; }
bool ssrc_set() const { return ssrc_set_; }
void set_ssrc(uint32 ssrc) {
ssrc_ = ssrc;
ssrc_set_ = true;
}
bool rtcp_mux() const { return rtcp_mux_; }
void set_rtcp_mux(bool mux) { rtcp_mux_ = mux; }
bool rtp_headers_disabled() const {
return rtp_headers_disabled_;
}
void set_rtp_headers_disabled(bool disable) {
rtp_headers_disabled_ = disable;
}
const std::vector<CryptoParams>& cryptos() const { return cryptos_; }
void AddCrypto(const CryptoParams& params) {
cryptos_.push_back(params);
}
uint32 ssrc_;
bool ssrc_set_;
bool rtcp_mux_;
bool rtp_headers_disabled_;
std::vector<CryptoParams> cryptos_;
};
template <class C>
class MediaContentDescriptionImpl : public MediaContentDescription {
public:
struct PreferenceSort {
bool operator()(C a, C b) { return a.preference > b.preference; }
};
const std::vector<C>& codecs() const { return codecs_; }
void AddCodec(const C& codec) {
codecs_.push_back(codec);
}
void SortCodecs() {
std::sort(codecs_.begin(), codecs_.end(), PreferenceSort());
}
private:
std::vector<C> codecs_;
};
class AudioContentDescription : public MediaContentDescriptionImpl<AudioCodec> {
public:
AudioContentDescription()
{}
virtual MediaType type() const { return MEDIA_TYPE_AUDIO; }
const std::string &lang() const { return lang_; }
void set_lang(const std::string &lang) { lang_ = lang; }
private:
std::string lang_;
};
class VideoContentDescription : public MediaContentDescriptionImpl<VideoCodec> {
public:
virtual MediaType type() const { return MEDIA_TYPE_VIDEO; }
};
// Convenience functions.
const ContentInfo* GetFirstAudioContent(const SessionDescription* sdesc);
const ContentInfo* GetFirstVideoContent(const SessionDescription* sdesc);
} // namespace cricket
#endif // TALK_SESSION_PHONE_MEDIASESSIONCLIENT_H_
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