diff options
Diffstat (limited to 'lib/ffmpeg/libavutil/intfloat_readwrite.h')
-rw-r--r-- | lib/ffmpeg/libavutil/intfloat_readwrite.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/lib/ffmpeg/libavutil/intfloat_readwrite.h b/lib/ffmpeg/libavutil/intfloat_readwrite.h new file mode 100644 index 0000000000..1b80fc6e95 --- /dev/null +++ b/lib/ffmpeg/libavutil/intfloat_readwrite.h @@ -0,0 +1,40 @@ +/* + * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at> + * + * This file is part of FFmpeg. + * + * FFmpeg 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. + * + * FFmpeg 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 FFmpeg; 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; + +double av_int2dbl(int64_t v) av_const; +float av_int2flt(int32_t v) av_const; +double av_ext2dbl(const AVExtFloat ext) av_const; +int64_t av_dbl2int(double d) av_const; +int32_t av_flt2int(float d) av_const; +AVExtFloat av_dbl2ext(double d) av_const; + +#endif /* AVUTIL_INTFLOAT_READWRITE_H */ |