15976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org/* 25976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * libjingle 35976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * Copyright 2011, Google Inc. 45976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * 55976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * Redistribution and use in source and binary forms, with or without 65976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * modification, are permitted provided that the following conditions are met: 75976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * 85976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * 1. Redistributions of source code must retain the above copyright notice, 95976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * this list of conditions and the following disclaimer. 105976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * 2. Redistributions in binary form must reproduce the above copyright notice, 115976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * this list of conditions and the following disclaimer in the documentation 125976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * and/or other materials provided with the distribution. 135976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * 3. The name of the author may not be used to endorse or promote products 145976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * derived from this software without specific prior written permission. 155976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * 165976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 175976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 185976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 195976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 205976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 215976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 225976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 235976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 245976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 255976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 265976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org */ 275976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 285976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org#ifndef TALK_APP_WEBRTC_MEDIASTREAMTRACK_H_ 295976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org#define TALK_APP_WEBRTC_MEDIASTREAMTRACK_H_ 305976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 315976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org#include <string> 325976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 335976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org#include "talk/app/webrtc/mediastreaminterface.h" 345976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org#include "talk/app/webrtc/notifier.h" 355976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 365976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgnamespace webrtc { 375976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 385976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org// MediaTrack implements the interface common to AudioTrackInterface and 395976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org// VideoTrackInterface. 405976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgtemplate <typename T> 415976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.orgclass MediaStreamTrack : public Notifier<T> { 425976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org public: 435976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org typedef typename T::TrackState TypedTrackState; 445976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 455976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org virtual std::string id() const { return id_; } 465976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org virtual MediaStreamTrackInterface::TrackState state() const { 475976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org return state_; 485976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org } 495976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org virtual bool enabled() const { return enabled_; } 505976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org virtual bool set_enabled(bool enable) { 515976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org bool fire_on_change = (enable != enabled_); 525976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org enabled_ = enable; 535976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org if (fire_on_change) { 545976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org Notifier<T>::FireOnChanged(); 555976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org } 565976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org return fire_on_change; 575976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org } 585976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org virtual bool set_state(MediaStreamTrackInterface::TrackState new_state) { 595976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org bool fire_on_change = (state_ != new_state); 605976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org state_ = new_state; 615976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org if (fire_on_change) 625976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org Notifier<T>::FireOnChanged(); 635976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org return true; 645976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org } 655976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 665976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org protected: 675976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org explicit MediaStreamTrack(const std::string& id) 685976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org : enabled_(true), 695976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org id_(id), 705976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org state_(MediaStreamTrackInterface::kInitializing) { 715976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org } 725976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 735976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org private: 745976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org bool enabled_; 755976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org std::string id_; 765976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org MediaStreamTrackInterface::TrackState state_; 775976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org}; 785976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 795976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org} // namespace webrtc 805976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org 815976650443d68ccfadf1dea24999ee459dd2819mflodman@webrtc.org#endif // TALK_APP_WEBRTC_MEDIASTREAMTRACK_H_ 82