v10/dist/dev/media/dom/text/resolve-vtt-segment.js

//#region src/media/dom/text/resolve-vtt-segment.ts
let dummyVideo = null;
function ensureDummyVideo() {
	if (!dummyVideo) {
		dummyVideo = document.createElement("video");
		dummyVideo.muted = true;
		dummyVideo.preload = "none";
		dummyVideo.style.display = "none";
		dummyVideo.crossOrigin = "anonymous";
	}
	return dummyVideo;
}
function resolveVttSegment(url) {
	const video = ensureDummyVideo();
	const track = document.createElement("track");
	track.kind = "subtitles";
	return new Promise((resolve, reject) => {
		const onLoad = () => {
			const cues = [];
			const textTrack = track.track;
			if (textTrack.cues) for (let i = 0; i < textTrack.cues.length; i++) {
				const cue = textTrack.cues[i];
				if (cue) cues.push(cue);
			}
			cleanup();
			resolve(cues);
		};
		const onError = () => {
			cleanup();
			reject(/* @__PURE__ */ new Error(`Failed to load VTT segment: ${url}`));
		};
		const cleanup = () => {
			track.removeEventListener("load", onLoad);
			track.removeEventListener("error", onError);
			video.removeChild(track);
		};
		track.addEventListener("load", onLoad);
		track.addEventListener("error", onError);
		video.appendChild(track);
		track.track.mode = "hidden";
		track.src = url;
	});
}
function destroyVttResolver() {
	dummyVideo = null;
}
//#endregion
export { destroyVttResolver, resolveVttSegment };

//# sourceMappingURL=resolve-vtt-segment.js.map