1// Copyright 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5// The <code>chrome.cast.streaming.session</code> API creates a Cast 6// session using WebMediaStreamTrack as sources. The session is composed 7// by RTP streams and a network transport. 8// 9// Calling this API will generate corresponding resources for use with 10// chrome.cast.streaming.rtpStream and chrome.cast.streaming.udpTransport 11// APIs. 12// 13// Valid resource IDs are positive and non-zero. 14namespace cast.streaming.session { 15 // Callback from the <code>create</code> method. 16 // |audioStreamId| : The audio RTP stream ID. 17 // |videoStreamId| : The video RTP stream ID. 18 // |udpTransportId| : The UDP transport ID. 19 callback CreateCallback = void (long audioStreamId, 20 long videoStreamId, 21 long udpTransportId); 22 23 interface Functions { 24 // Creates a Cast session using the provided audio and video track as 25 // source. The tracks must be of type MediaStreamTrack. This will 26 // create two RTP streams and a UDP transport that builds the session. 27 // Either |audioTrack| or |videoTrack| can be null but not both. This 28 // means creating a session with only audio or video. If a given 29 // track is null then the created stream ID will be null. 30 // 31 // |audioTrack| : the source audio track. 32 // |videoTrack| : the source video track. 33 // |callback| : Called when the sesion has been created. 34 [nocompile,allowAmbiguousOptionalArguments] static void create( 35 [instanceOf=MediaStreamTrack] optional object audioTrack, 36 [instanceOf=MediaStreamTrack] optional object videoTrack, 37 CreateCallback callback); 38 }; 39}; 40