--- /dev/null
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_ENCODER_H
+#define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_ENCODER_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/slice.h>
+
+/* base64 encode a slice. Returns a new slice, does not take ownership of the
+ input */
+grpc_slice grpc_chttp2_base64_encode(const grpc_slice& input);
+
+/* Compress a slice with the static huffman encoder detailed in the hpack
+ standard. Returns a new slice, does not take ownership of the input */
+grpc_slice grpc_chttp2_huffman_compress(const grpc_slice& input);
+
+/* equivalent to:
+ grpc_slice x = grpc_chttp2_base64_encode(input);
+ grpc_slice y = grpc_chttp2_huffman_compress(x);
+ grpc_slice_unref_internal( x);
+ return y; */
+grpc_slice grpc_chttp2_base64_encode_and_huffman_compress(
+ const grpc_slice& input);
+
+#endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_ENCODER_H */