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fix(screenshot-capture): Prevent effect initialization on each toggle

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This commit is contained in:
Mihai Uscat
2020-02-26 17:50:54 +02:00
committed by Jaya Allamsetty
parent 95eb551156
commit 2064fc8937
3 changed files with 51 additions and 33 deletions
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50
react/features/stream-effects/screenshot-capture/ScreenshotCaptureEffect.js
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@@ -50,40 +50,36 @@ export default class ScreenshotCaptureEffect {
this._streamWorker.onmessage = this._handleWorkerAction;
}
/**
* Checks if the local track supports this effect.
*
* @param {JitsiLocalTrack} jitsiLocalTrack - Targeted local track.
* @returns {boolean} - Returns true if this effect can run on the specified track, false otherwise.
*/
isEnabled(jitsiLocalTrack: Object) {
return jitsiLocalTrack.isVideoTrack() && jitsiLocalTrack.videoType === 'desktop';
}
/**
* Starts the screenshot capture event on a loop.
*
* @param {MediaStream} stream - The desktop stream from which screenshots are to be sent.
* @returns {MediaStream} - The same stream, with the interval set.
* @param {string} videoType - The type of the media stream.
* @returns {Promise} - Promise that resolves once effect has started or rejects if the
* videoType parameter is not desktop.
*/
startEffect(stream: MediaStream) {
const desktopTrack = stream.getVideoTracks()[0];
const { height, width }
= desktopTrack.getSettings() ?? desktopTrack.getConstraints();
startEffect(stream: MediaStream, videoType: string) {
return new Promise<void>((resolve, reject) => {
if (videoType !== 'desktop') {
reject();
}
const desktopTrack = stream.getVideoTracks()[0];
const { height, width }
= desktopTrack.getSettings() ?? desktopTrack.getConstraints();
this._streamHeight = height;
this._streamWidth = width;
this._currentCanvas.height = parseInt(height, 10);
this._currentCanvas.width = parseInt(width, 10);
this._videoElement.height = parseInt(height, 10);
this._videoElement.width = parseInt(width, 10);
this._videoElement.srcObject = stream;
this._videoElement.play();
this._streamHeight = height;
this._streamWidth = width;
this._currentCanvas.height = parseInt(height, 10);
this._currentCanvas.width = parseInt(width, 10);
this._videoElement.height = parseInt(height, 10);
this._videoElement.width = parseInt(width, 10);
this._videoElement.srcObject = stream;
this._videoElement.play();
// Store first capture for comparisons in {@code this._handleScreenshot}.
this._videoElement.addEventListener('loadeddata', this._initScreenshotCapture);
return stream;
// Store first capture for comparisons in {@code this._handleScreenshot}.
this._videoElement.addEventListener('loadeddata', this._initScreenshotCapture);
resolve();
});
}
/**