將音頻和視頻軌道結合到新的MediaStream中

Question

我需要使用來自不同MediaStream的音頻和視頻創建MediaStream。

var outputTracks = []; 
    outputTracks = outputTracks.concat(outputAudioStream.getTracks()); 
    outputTracks = outputTracks.concat(outputVideoStream.getTracks()); 
    outputMediaStream = new MediaStream(outputTracks); 

不幸的是，這並不在Chrome工作：

ReferenceError: MediaStream is not defined

有沒有在Chrome從組合音軌的替代方法在Firefox中，我可以從軌道的數組實例化一個新MediaStream分開的流？

Answer 1

還是廠商前綴WebKit的：

var outputTracks = []; 
    outputTracks = outputTracks.concat(outputAudioStream.getTracks()); 
    outputTracks = outputTracks.concat(outputVideoStream.getTracks()); 
    outputMediaStream = new webkitMediaStream(outputTracks);