pstream is dead; long live pstream
taciturnaxolotl.github.io/pstream-ng/
thumbnail queue algorithm
Co-authored-by: Jip Frijlink <JipFr@users.noreply.github.com>
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src/components/player/internals/ThumbnailScraper.tsx
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src/components/player/internals/ThumbnailScraper.tsx
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import { usePlayerStore } from "@/stores/player/store";
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import { LoadableSource, selectQuality } from "@/stores/player/utils/qualities";
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function makeQueue(layers: number): number[] {
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const output = [0, 1];
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let segmentSize = 0.5;
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let lastSegmentAmount = 0;
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for (let layer = 0; layer < layers; layer += 1) {
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const segmentAmount = 1 / segmentSize - 1;
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for (let i = 0; i < segmentAmount - lastSegmentAmount; i += 1) {
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const offset = i * segmentSize * 2;
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output.push(offset + segmentSize);
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}
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lastSegmentAmount = segmentAmount;
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segmentSize /= 2;
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}
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return output;
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}
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class ThumnbnailWorker {
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interrupted: boolean;
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···
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if (!vid) return;
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await this.initVideo();
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// TODO make a queue based on refinement algorithm
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const sections = 50;
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const queue = Array(sections + 1)
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.fill(0)
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.map((_, i) => i / sections);
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const queue = makeQueue(6); // 7 layers is 63 thumbnails evenly distributed
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for (let i = 0; i < queue.length; i += 1) {
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if (this.interrupted) return;
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await this.takeSnapshot(vid.duration * queue[i]);