chore: import upstream snapshot with attribution

2026-07-13 12:02:24 +08:00
commit 4cddfcf2f3
1040 changed files with 200957 additions and 0 deletions
@@ -0,0 +1,18 @@
+package testutil
+
+// BuildMotionPhotoJPEG returns a minimal JPEG blob with Motion Photo metadata
+// and an embedded MP4 header for tests.
+func BuildMotionPhotoJPEG() []byte {
+	return append(
+		[]byte{
+			0xFF, 0xD8, 0xFF, 0xE1,
+		},
+		append(
+			[]byte(`<?xpacket begin=""?><rdf:Description GCamera:MotionPhoto="1" GCamera:MotionPhotoPresentationTimestampUs="123456"></rdf:Description>`),
+			[]byte{
+				0xFF, 0xD9,
+				0x00, 0x00, 0x00, 0x10, 'f', 't', 'y', 'p', 'i', 's', 'o', 'm', 0x00, 0x00, 0x00, 0x00,
+			}...,
+		)...,
+	)
+}