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Diffstat (limited to 'contrib/ffmpeg/libavutil/integer.h')
-rw-r--r-- | contrib/ffmpeg/libavutil/integer.h | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/contrib/ffmpeg/libavutil/integer.h b/contrib/ffmpeg/libavutil/integer.h deleted file mode 100644 index 2a4d70316..000000000 --- a/contrib/ffmpeg/libavutil/integer.h +++ /dev/null @@ -1,82 +0,0 @@ -/* - * arbitrary precision integers - * Copyright (c) 2004 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 - * - */ - -/** - * @file integer.h - * arbitrary precision integers - * @author Michael Niedermayer <michaelni@gmx.at> - */ - -#ifndef INTEGER_H -#define INTEGER_H - -#define AV_INTEGER_SIZE 8 - -typedef struct AVInteger{ - uint16_t v[AV_INTEGER_SIZE]; -} AVInteger; - -AVInteger av_add_i(AVInteger a, AVInteger b); -AVInteger av_sub_i(AVInteger a, AVInteger b); - -/** - * returns the rounded down value of the logarithm of base 2 of the given AVInteger. - * this is simply the index of the most significant bit which is 1. Or 0 of all bits are 0 - */ -int av_log2_i(AVInteger a); -AVInteger av_mul_i(AVInteger a, AVInteger b); - -/** - * returns 0 if a==b, 1 if a>b and -1 if a<b. - */ -int av_cmp_i(AVInteger a, AVInteger b); - -/** - * bitwise shift. - * @param s the number of bits by which the value should be shifted right, may be negative for shifting left - */ -AVInteger av_shr_i(AVInteger a, int s); - -/** - * returns a % b. - * @param quot a/b will be stored here - */ -AVInteger av_mod_i(AVInteger *quot, AVInteger a, AVInteger b); - -/** - * returns a/b. - */ -AVInteger av_div_i(AVInteger a, AVInteger b); - -/** - * converts the given int64_t to an AVInteger. - */ -AVInteger av_int2i(int64_t a); - -/** - * converts the given AVInteger to an int64_t. - * if the AVInteger is too large to fit into an int64_t, - * then only the least significant 64bit will be used - */ -int64_t av_i2int(AVInteger a); - -#endif // INTEGER_H |