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[Perf] Video: Avoid redundant renders

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This commit is contained in:
Alexander Zinchuk 2023-01-22 18:12:40 +01:00
parent c6bd762a4c
commit f17f1f533e
1 changed files with 4 additions and 1 deletions
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5
src/hooks/useBuffering.ts
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@ -2,6 +2,7 @@ import type React from '../lib/teact/teact';
import { useCallback, useMemo, useState } from '../lib/teact/teact'; import { useCallback, useMemo, useState } from '../lib/teact/teact';
import { debounce } from '../util/schedulers'; import { debounce } from '../util/schedulers';
import { isSafariPatchInProgress } from '../util/patchSafariProgressiveAudio'; import { isSafariPatchInProgress } from '../util/patchSafariProgressiveAudio';
import { areDeepEqual } from '../util/areDeepEqual';
type BufferingEvent = (e: Event | React.SyntheticEvent<HTMLMediaElement>) => void; type BufferingEvent = (e: Event | React.SyntheticEvent<HTMLMediaElement>) => void;
@ -33,9 +34,11 @@ const useBuffering = (noInitiallyBuffered = false, onTimeUpdate?: AnyToVoidFunct
if (!isSafariPatchInProgress(media)) { if (!isSafariPatchInProgress(media)) {
if (media.buffered.length) { if (media.buffered.length) {
const ranges = getTimeRanges(media.buffered, media.duration); const ranges = getTimeRanges(media.buffered, media.duration);
setBufferedRanges(ranges);
const bufferedLength = ranges.reduce((acc, { start, end }) => acc + end - start, 0); const bufferedLength = ranges.reduce((acc, { start, end }) => acc + end - start, 0);
setBufferedProgress(bufferedLength / media.duration); setBufferedProgress(bufferedLength / media.duration);
setBufferedRanges((currentRanges) => {
return areDeepEqual(currentRanges, ranges) ? currentRanges : ranges;
});
} }
setIsBufferedDebounced(media.readyState >= MIN_READY_STATE || media.currentTime > 0); setIsBufferedDebounced(media.readyState >= MIN_READY_STATE || media.currentTime > 0);