diff options
Diffstat (limited to 'libavutil/mathematics.c')
| -rw-r--r-- | libavutil/mathematics.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/libavutil/mathematics.c b/libavutil/mathematics.c index e2f06eda29..2e6a5fa8ae 100644 --- a/libavutil/mathematics.c +++ b/libavutil/mathematics.c @@ -1,20 +1,20 @@ /* * Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -23,10 +23,11 @@ * miscellaneous math routines and tables */ -#include <assert.h> #include <stdint.h> #include <limits.h> #include "mathematics.h" +#include "libavutil/common.h" +#include "avassert.h" const uint8_t ff_sqrt_tab[256]={ 0, 16, 23, 28, 32, 36, 40, 43, 46, 48, 51, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 77, 79, 80, 82, 84, 85, 87, 88, 90, @@ -76,9 +77,9 @@ int64_t av_gcd(int64_t a, int64_t b){ int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd){ int64_t r=0; - assert(c > 0); - assert(b >=0); - assert((unsigned)rnd<=5 && rnd!=4); + av_assert2(c > 0); + av_assert2(b >=0); + av_assert2((unsigned)rnd<=5 && rnd!=4); if(a<0 && a != INT64_MIN) return -av_rescale_rnd(-a, b, c, rnd ^ ((rnd>>1)&1)); @@ -146,6 +147,8 @@ int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b){ int64_t a= tb_a.num * (int64_t)tb_b.den; int64_t b= tb_b.num * (int64_t)tb_a.den; + if((FFABS(ts_a)|a|FFABS(ts_b)|b)<=INT_MAX) + return (ts_a*a > ts_b*b) - (ts_a*a < ts_b*b); if (av_rescale_rnd(ts_a, a, b, AV_ROUND_DOWN) < ts_b) return -1; if (av_rescale_rnd(ts_b, b, a, AV_ROUND_DOWN) < ts_a) return 1; return 0; |