Fixed broken special characters in captionsHEADmaster

1 files changed, 21 insertions, 1 deletions

diff --git a/src/generate-data.ts b/src/generate-data.ts
index a67c620..3d04bfb 100644
--- a/src/generate-data.ts
+++ b/src/generate-data.ts
@@ -93,6 +93,26 @@ function convertCoordinate(coordinate: number[], coordinateRef: string): number
   }

 }

 

+function decodeExifUserComment(buffer: Buffer): string {

+  const encoding = buffer.toString('ascii', 0, 7);

+  

+  let index = 8;

+  for (let i = index; i < buffer.length; i++) {

+    if (buffer[i] !== 0) {

+      index = i;

+      break;

+    }

+  }

+

+  if (encoding === 'ASCII\0\0') {

+    return buffer.toString('utf8', index);

+  } else if (encoding === 'UNICODE') {

+    return buffer.toString('utf16le', index);

+  } else {

+    return buffer.toString();

+  }

+}

+

 async function checkIfFileExists(filepath: string): Promise<boolean> {

   try {

     await access(filepath, fsConstants.F_OK);

@@ -232,7 +252,7 @@ async function getPhotos(
         longitude,

         time: exifData.exif?.DateTimeOriginal,

         thumbnail: `${serverPath}/${relativePath}/thumb-${file.name}`,

-        caption: exifData.image?.ImageDescription,

+        caption: decodeExifUserComment(exifData.exif?.UserComment),

       });

     } catch (err) {

       console.error(`Could not process the file ${inputFile}.`);