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Allow filters to maintain state.

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This commit is contained in:
Juliusz Chroboczek 2021-01-13 18:10:16 +01:00
parent 769c698894
commit 2eb61d877f
1 changed files with 8 additions and 0 deletions
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8
static/galene.js
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@ -800,6 +800,8 @@ async function setMaxVideoThroughput(c, bps) {
* @property {string} [description]
* @property {string} [contextType]
* @property {Object} [contextAttributes]
* @property {(this: Filter, ctx: RenderingContext) => void} [init]
* @property {(this: Filter) => void} [cleanup]
* @property {(this: Filter, src: CanvasImageSource, width: number, height: number, ctx: RenderingContext) => boolean} f
*/
@ -838,6 +840,8 @@ function Filter(stream, definition) {
this.count = 0;
/** @type {boolean} */
this.fixedFramerate = false;
/** @type {Object} */
this.userdata = {}
/** @ts-ignore */
this.captureStream = this.canvas.captureStream(0);
@ -859,6 +863,8 @@ function Filter(stream, definition) {
this.video.srcObject = stream;
this.video.muted = true;
this.video.play();
if(this.definition.init)
this.definition.init.call(this, this.context);
this.timer = setInterval(() => this.draw(), 1000 / this.frameRate);
}
@ -902,6 +908,8 @@ Filter.prototype.stop = function() {
this.captureStream.getTracks()[0].stop();
clearTimeout(this.timer);
this.timer = null;
if(this.definition.cleanup)
this.definition.cleanup.call(this);
};
/**