i><p><a href="/werift-webrtc/website/build/ja/docs/api/classes/eventtarget">EventTarget</a></p><p>‚Ü≥ <strong>MediaStreamTrack</strong></p></li></ul><h2><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_2LWZ" id="constructors"></a>Constructors<a class="hash-link" href="#constructors" title="Ë¶ãÂá∫„Åó„Å∏„ÅÆÁõ¥Êé•„É™„É≥„ÇØ">#</a></h2><h3><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_2LWZ" id="constructor"></a>constructor<a class="