1 files changed, 39 insertions, 0 deletions
diff --git a/internal/xmpmeta/base64.h b/internal/xmpmeta/base64.h
new file mode 100644
index 0000000..8439e90
--- /dev/null
+++ b/internal/xmpmeta/base64.h
@@ -0,0 +1,39 @@
+#ifndef DYNAMIC_DEPTH_INTERNAL_XMPMETA_BASE64_H_  // NOLINT
+#define DYNAMIC_DEPTH_INTERNAL_XMPMETA_BASE64_H_  // NOLINT
+
+#include <iostream>
+#include <string>
+#include <vector>
+
+#include "base/port.h"
+
+namespace photos_editing_formats {
+// Decodes the base64-encoded input range. Supports decoding of both web-safe
+// and regular base64."Web-safe" base-64 replaces + with - and / with _, and
+// omits trailing = padding characters.
+bool DecodeBase64(const string& data, string* output);
+
+// Base64-encodes the given string.
+bool EncodeBase64(const string& data, string* output);
+
+// Base64-encodes the given int array.
+bool EncodeIntArrayBase64(const std::vector<int32_t>& data, string* output);
+
+// Base64-decodes the given int array.
+bool DecodeIntArrayBase64(const string& data, std::vector<int32_t>* output);
+
+// Base64-encodes the given float array.
+bool EncodeFloatArrayBase64(const std::vector<float>& data, string* output);
+
+// Base64-decodes the given float array.
+bool DecodeFloatArrayBase64(const string& data, std::vector<float>* output);
+
+// Base64-encodes the given double array.
+bool EncodeDoubleArrayBase64(const std::vector<double>& data, string* output);
+
+// Base64-decodes the given double array.
+bool DecodeDoubleArrayBase64(const string& data, std::vector<double>* output);
+
+}  // namespace photos_editing_formats
+
+#endif // DYNAMIC_DEPTH_INTERNAL_XMPMETA_BASE64_H_  // NOLINT