アニメーションを自動再生しないオプション (#4131)

* Refactor

* settings

* Media Proxy

* Replace API response

src/services/drive/image-processor.ts

@@ -0,0 +1,75 @@
+import * as sharp from 'sharp';
+
+export type IImage = {
+	data: Buffer;
+	ext: string;
+	type: string;
+};
+
+/**
+ * Convert to JPEG
+ *   with resize, remove metadata, resolve orientation, stop animation
+ */
+export async function ConvertToJpeg(path: string, width: number, height: number): Promise<IImage> {
+	const data = await sharp(path)
+		.resize(width, height, {
+			fit: 'inside',
+			withoutEnlargement: true
+		})
+		.rotate()
+		.jpeg({
+			quality: 85,
+			progressive: true
+		})
+		.toBuffer();
+
+	return {
+		data,
+		ext: 'jpg',
+		type: 'image/jpeg'
+	};
+}
+
+/**
+ * Convert to WebP
+ *   with resize, remove metadata, resolve orientation, stop animation
+ */
+export async function ConvertToWebp(path: string, width: number, height: number): Promise<IImage> {
+	const data = await sharp(path)
+		.resize(width, height, {
+			fit: 'inside',
+			withoutEnlargement: true
+		})
+		.rotate()
+		.webp({
+			quality: 85
+		})
+		.toBuffer();
+
+	return {
+		data,
+		ext: 'webp',
+		type: 'image/webp'
+	};
+}
+
+/**
+ * Convert to PNG
+ *   with resize, remove metadata, resolve orientation, stop animation
+ */
+export async function ConvertToPng(path: string, width: number, height: number): Promise<IImage> {
+	const data = await sharp(path)
+		.resize(width, height, {
+			fit: 'inside',
+			withoutEnlargement: true
+		})
+		.rotate()
+		.png()
+		.toBuffer();
+
+	return {
+		data,
+		ext: 'png',
+		type: 'image/png'
+	};
+}