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MediaStream: getTracks() メソッド - Web API | MDN
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このページはコミュニティーの尽力で英語から翻訳されました。MDN Web Docs コミュニティーについてもっと知り、仲間になるにはこちらから。
MediaStream: getTracks() メソッド
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2017年9月.
getTracks() は MediaStream インターフェイスのメソッドで、このストリームのトラックセットにあるすべての MediaStreamTrack オブジェクトを MediaStreamTrack.kind に関係なく表す配列を返します。
構文
js
getTracks()
引数
なし。
返値
MediaStreamTrack オブジェクトの配列です。
例
js
navigator.mediaDevices
.getUserMedia({ audio: false, video: true })
.then((mediaStream) => {
document.querySelector("video").srcObject = mediaStream;
// 5 秒後にストリームを停止
setTimeout(() => {
const tracks = mediaStream.getTracks();
tracks[0].stop();
}, 5000);
});
仕様書
| Specification |
|---|
| Media Capture and Streams # dom-mediastream-gettracks |
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