File "load-youtube-poster.ts"
Full Path: /home/markqprx/iniasli.pro/client/player/providers/youtube/load-youtube-poster.ts
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import {loadImage} from '@common/utils/http/load-image';
const posterCache = new Map<string, string>();
export async function loadYoutubePoster(
videoId: string
): Promise<string | undefined> {
if (!videoId) return;
if (posterCache.has(videoId)) {
return posterCache.get(videoId);
}
const posterURL = (quality: string) =>
`https://i.ytimg.com/vi/${videoId}/${quality}.jpg`;
/**
* We are testing that the image has a min-width of 121px because if the thumbnail does not
* exist YouTube returns a blank/error image that is 120px wide.
*/
return loadImage(posterURL('maxresdefault'), 121) // 1080p (no padding)
.catch(() => loadImage(posterURL('sddefault'), 121)) // 640p (padded 4:3)
.catch(() => loadImage(posterURL('hqdefault'), 121)) // 480p (padded 4:3)
.catch(() => {})
.then(img => {
if (!img) return;
const poster = img.src;
posterCache.set(videoId, poster);
return poster;
});
}