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Diffstat (limited to 'src/libffmpeg/libavutil/mathematics.h')
-rw-r--r-- | src/libffmpeg/libavutil/mathematics.h | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/src/libffmpeg/libavutil/mathematics.h b/src/libffmpeg/libavutil/mathematics.h deleted file mode 100644 index 0b74b254b..000000000 --- a/src/libffmpeg/libavutil/mathematics.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * 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 MATHEMATICS_H -#define MATHEMATICS_H - -#include "rational.h" - -enum AVRounding { - AV_ROUND_ZERO = 0, ///< round toward zero - AV_ROUND_INF = 1, ///< round away from zero - AV_ROUND_DOWN = 2, ///< round toward -infinity - AV_ROUND_UP = 3, ///< round toward +infinity - AV_ROUND_NEAR_INF = 5, ///< round to nearest and halfway cases away from zero -}; - -/** - * rescale a 64bit integer with rounding to nearest. - * a simple a*b/c isn't possible as it can overflow - */ -int64_t av_rescale(int64_t a, int64_t b, int64_t c); - -/** - * rescale a 64bit integer with specified rounding. - * a simple a*b/c isn't possible as it can overflow - */ -int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding); - -/** - * rescale a 64bit integer by 2 rational numbers. - */ -int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq); - -#endif /* MATHEMATICS_H */ |