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diff --git a/make/stub_includes/libav/libavutil/intfloat_readwrite.h b/make/stub_includes/libav/libavutil/intfloat_readwrite.h
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+/*
+ * copyright (c) 2005 Michael Niedermayer <[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_INTFLOAT_READWRITE_H
+#define AVUTIL_INTFLOAT_READWRITE_H
+
+#include <stdint.h>
+#include "attributes.h"
+
+/* IEEE 80 bits extended float */
+typedef struct AVExtFloat {
+ uint8_t exponent[2];
+ uint8_t mantissa[8];
+} AVExtFloat;
+
+attribute_deprecated double av_int2dbl(int64_t v) av_const;
+attribute_deprecated float av_int2flt(int32_t v) av_const;
+attribute_deprecated double av_ext2dbl(const AVExtFloat ext) av_const;
+attribute_deprecated int64_t av_dbl2int(double d) av_const;
+attribute_deprecated int32_t av_flt2int(float d) av_const;
+attribute_deprecated AVExtFloat av_dbl2ext(double d) av_const;
+
+#endif /* AVUTIL_INTFLOAT_READWRITE_H */