eewing
40 lines
1.1 KiB
TypeScript
40 lines
1.1 KiB
TypeScript
/**
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* Server-side HEIC conversion using heic-convert (Node). Use in form actions only.
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*/
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export function isHeicFile(file: File): boolean {
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const name = file.name.toLowerCase();
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const type = (file.type ?? "").toLowerCase();
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return (
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name.endsWith(".heic") ||
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name.endsWith(".heif") ||
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type === "image/heic" ||
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type === "image/heif"
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);
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}
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/**
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* If the file is HEIC/HEIF, convert to JPEG and return a new File. Otherwise return the original.
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*/
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export async function convertHeicFileToJpegIfNeeded(file: File): Promise<File> {
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if (!isHeicFile(file)) return file;
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const arrayBuffer = await file.arrayBuffer();
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const inputBuffer = Buffer.from(arrayBuffer);
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const convert = (await import("heic-convert")).default as (opts: {
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buffer: Buffer;
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format: string;
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quality?: number;
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}) => Promise<Buffer>;
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const outputBuffer = await convert({
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buffer: inputBuffer,
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format: "JPEG",
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quality: 0.92,
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});
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const baseName = file.name.replace(/\.[^.]+$/i, "") || "image";
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return new File([outputBuffer], `${baseName}.jpg`, {
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type: "image/jpeg",
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lastModified: Date.now(),
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});
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}
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