should be it

external/duckdb/third_party/brotli/enc/literal_cost.h

@@ -0,0 +1,28 @@
+/* Copyright 2013 Google Inc. All Rights Reserved.
+
+   Distributed under MIT license.
+   See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
+*/
+
+/* Literal cost model to allow backward reference replacement to be efficient.
+*/
+
+#ifndef BROTLI_ENC_LITERAL_COST_H_
+#define BROTLI_ENC_LITERAL_COST_H_
+
+#include <brotli/types.h>
+
+#include "../common/brotli_platform.h"
+
+namespace duckdb_brotli {
+
+/* Estimates how many bits the literals in the interval [pos, pos + len) in the
+   ring-buffer (data, mask) will take entropy coded and writes these estimates
+   to the cost[0..len) array. */
+BROTLI_INTERNAL void BrotliEstimateBitCostsForLiterals(
+    size_t pos, size_t len, size_t mask, const uint8_t* data, size_t* histogram,
+    float* cost);
+
+}
+
+#endif  /* BROTLI_ENC_LITERAL_COST_H_ */