37 lines
1.3 KiB
TypeScript
37 lines
1.3 KiB
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and misskey-project
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import isAnimated from 'is-file-animated';
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import { isWebpSupported } from './isWebpSupported.js';
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import type { BrowserImageResizerConfigWithConvertedOutput } from '@misskey-dev/browser-image-resizer';
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const compressTypeMap = {
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'image/jpeg': { quality: 0.85, mimeType: 'image/webp' },
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'image/png': { quality: 1, mimeType: 'image/webp' },
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'image/webp': { quality: 0.85, mimeType: 'image/webp' },
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'image/svg+xml': { quality: 1, mimeType: 'image/webp' },
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} as const;
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const compressTypeMapFallback = {
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'image/jpeg': { quality: 0.8, mimeType: 'image/jpeg' },
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'image/png': { quality: 1, mimeType: 'image/png' },
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'image/webp': { quality: 0.8, mimeType: 'image/jpeg' },
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'image/svg+xml': { quality: 1, mimeType: 'image/png' },
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} as const;
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export async function getCompressionConfig(file: File, options: Partial<{ maxWidth: number; maxHeight: number; }> = {}): Promise<BrowserImageResizerConfigWithConvertedOutput | undefined> {
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const imgConfig = (isWebpSupported() ? compressTypeMap : compressTypeMapFallback)[file.type];
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if (!imgConfig || await isAnimated(file)) {
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return;
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}
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return {
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maxWidth: options.maxWidth ?? 2048,
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maxHeight: options.maxHeight ?? 2048,
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debug: true,
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...imgConfig,
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};
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}
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