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- /*
- * Copyright (c) 2011 Mans Rullgard
- *
- * 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_H
- #define AVUTIL_INTFLOAT_H
- #include <stdint.h>
- #include "attributes.h"
- union av_intfloat32 {
- uint32_t i;
- float f;
- };
- union av_intfloat64 {
- uint64_t i;
- double f;
- };
- /**
- * Reinterpret a 32-bit integer as a float.
- */
- static av_always_inline float av_int2float(uint32_t i)
- {
- union av_intfloat32 v = { .i = i };
- return v.f;
- }
- /**
- * Reinterpret a float as a 32-bit integer.
- */
- static av_always_inline uint32_t av_float2int(float f)
- {
- union av_intfloat32 v = { .f = f };
- return v.i;
- }
- /**
- * Reinterpret a 64-bit integer as a double.
- */
- static av_always_inline double av_int2double(uint64_t i)
- {
- union av_intfloat64 v = { .i = i };
- return v.f;
- }
- /**
- * Reinterpret a double as a 64-bit integer.
- */
- static av_always_inline uint64_t av_double2int(double f)
- {
- union av_intfloat64 v = { .f = f };
- return v.i;
- }
- #endif /* AVUTIL_INTFLOAT_H */
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