v10/dist/dev/media/dom/mse/buffer-flusher.js

//#region src/media/dom/mse/buffer-flusher.ts
/**
* Buffer flusher helper (P12)
*
* Removes a time range from a SourceBuffer to manage memory.
*/
/**
* Remove a time range from a SourceBuffer.
*
* Waits for the SourceBuffer to be ready (not updating), then removes
* the specified range. Returns a promise that resolves when removal completes.
*
* @param sourceBuffer - The SourceBuffer to remove data from
* @param start - Start of the time range to remove (seconds)
* @param end - End of the time range to remove (seconds)
* @returns Promise that resolves when removal completes
*
* @example
* await flushBuffer(videoSourceBuffer, 0, 30);
*/
async function flushBuffer(sourceBuffer, start, end) {
	if (sourceBuffer.updating) await new Promise((resolve) => {
		const onUpdateEnd = () => {
			sourceBuffer.removeEventListener("updateend", onUpdateEnd);
			resolve();
		};
		sourceBuffer.addEventListener("updateend", onUpdateEnd);
	});
	return new Promise((resolve, reject) => {
		const onUpdateEnd = () => {
			cleanup();
			resolve();
		};
		const onError = (event) => {
			cleanup();
			reject(/* @__PURE__ */ new Error(`SourceBuffer remove error: ${event.type}`));
		};
		const cleanup = () => {
			sourceBuffer.removeEventListener("updateend", onUpdateEnd);
			sourceBuffer.removeEventListener("error", onError);
		};
		sourceBuffer.addEventListener("updateend", onUpdateEnd);
		sourceBuffer.addEventListener("error", onError);
		try {
			sourceBuffer.remove(start, end);
		} catch (error) {
			cleanup();
			reject(error);
		}
	});
}
//#endregion
export { flushBuffer };

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