Handle EXIF orientation flag (#4021)

* Handle EXIF orientation flag * Create gentle-mails-mate.md
withastro · Jul 22, 2022 · 9aecf7c · 9aecf7c
1 parent 3373181
commit 9aecf7c
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diff --git a/.changeset/gentle-mails-mate.md b/.changeset/gentle-mails-mate.md
@@ -0,0 +1,5 @@
+---
+"@astrojs/image": patch
+---
+
+Handle EXIF orientation flag
diff --git a/packages/integrations/image/src/metadata.ts b/packages/integrations/image/src/metadata.ts
@@ -5,16 +5,17 @@ import { ImageMetadata, InputFormat } from './types';
 export async function metadata(src: string): Promise<ImageMetadata | undefined> {
 	const file = await fs.readFile(src);
 
-	const { width, height, type } = await sizeOf(file);
+	const { width, height, type, orientation } = await sizeOf(file);
+	const isPortrait = (orientation || 0) >= 5;
 
 	if (!width || !height || !type) {
 		return undefined;
 	}
 
 	return {
 		src,
-		width,
-		height,
+		width: isPortrait ? height : width,
+		height: isPortrait ? width : height,
 		format: type as InputFormat,
 	};
 }