feat: expose exif buffers

jpeg-js · Sep 7, 2018 · 2341ab7 · 2341ab7
1 parent 79c4c7e
commit 2341ab7
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Showing 3 changed files with 172 additions and 124 deletions.
diff --git a/lib/decoder.js b/lib/decoder.js
@@ -637,6 +637,16 @@ var JpegImage = (function jpegImage() {
               }
             }
             // TODO APP1 - Exif
+            if (fileMarker === 0xFFE1) {
+              if (appData[0] === 0x45 &&
+                appData[1] === 0x78 &&
+                appData[2] === 0x69 &&
+                appData[3] === 0x66 &&
+                appData[4] === 0) { // 'EXIF\x00'
+                this.exifBuffer = appData.slice(5);
+              }
+            }
+
             if (fileMarker === 0xFFEE) {
               if (appData[0] === 0x41 && appData[1] === 0x64 && appData[2] === 0x6F &&
                 appData[3] === 0x62 && appData[4] === 0x65 && appData[5] === 0) { // 'Adobe\x00'
@@ -1007,6 +1017,7 @@ function decode(jpegData, opts) {
   var image = {
     width: decoder.width,
     height: decoder.height,
+    exifBuffer: decoder.exifBuffer,
     data: opts.useTArray ?
       new Uint8Array(decoder.width * decoder.height * 4) :
       new Buffer(decoder.width * decoder.height * 4)