Added the callback in native c++ API. The callback function is called when a track is added and a new RtpReceiver is created. The application can tell when tracks are added to the streams by listening to this callback. BUG=webrtc:6112 Review-Url: https://codereview.webrtc.org/2505173002 Cr-Commit-Position: refs/heads/master@{#15142}
Name: WebRTC URL: http://www.webrtc.org Version: 90 License: BSD License File: LICENSE Description: WebRTC provides real time voice and video processing functionality to enable the implementation of PeerConnection/MediaStream. Third party code used in this project is described in the file LICENSE_THIRD_PARTY.