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diff --git a/make/stub_includes/libav/lavc53.lavf53.lavu51/libavutil/base64.h b/make/stub_includes/libav/lavc53.lavf53.lavu51/libavutil/base64.h
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+++ b/make/stub_includes/libav/lavc53.lavf53.lavu51/libavutil/base64.h
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+/*
+ * Copyright (c) 2006 Ryan Martell. ([email protected])
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_BASE64_H
+#define AVUTIL_BASE64_H
+
+#include <stdint.h>
+
+/**
+ * @defgroup lavu_base64 Base64
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+
+/**
+ * Decode a base64-encoded string.
+ *
+ * @param out buffer for decoded data
+ * @param in null-terminated input string
+ * @param out_size size in bytes of the out buffer, must be at
+ * least 3/4 of the length of in
+ * @return number of bytes written, or a negative value in case of
+ * invalid input
+ */
+int av_base64_decode(uint8_t *out, const char *in, int out_size);
+
+/**
+ * Encode data to base64 and null-terminate.
+ *
+ * @param out buffer for encoded data
+ * @param out_size size in bytes of the output buffer, must be at
+ * least AV_BASE64_SIZE(in_size)
+ * @param in_size size in bytes of the 'in' buffer
+ * @return 'out' or NULL in case of error
+ */
+char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size);
+
+/**
+ * Calculate the output size needed to base64-encode x bytes.
+ */
+#define AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1)
+
+ /**
+ * @}
+ */
+
+#endif /* AVUTIL_BASE64_H */