diff options
Diffstat (limited to 'libavutil/bswap.h')
| -rw-r--r-- | libavutil/bswap.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/libavutil/bswap.h b/libavutil/bswap.h index 3657ccd402..303bcf3532 100644 --- a/libavutil/bswap.h +++ b/libavutil/bswap.h @@ -1,20 +1,20 @@ /* * copyright (c) 2006 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 */ @@ -74,6 +74,11 @@ static av_always_inline av_const uint32_t av_bswap32(uint32_t x) #ifndef av_bswap64 static inline uint64_t av_const av_bswap64(uint64_t x) { +#if 0 + x= ((x<< 8)&0xFF00FF00FF00FF00ULL) | ((x>> 8)&0x00FF00FF00FF00FFULL); + x= ((x<<16)&0xFFFF0000FFFF0000ULL) | ((x>>16)&0x0000FFFF0000FFFFULL); + return (x>>32) | (x<<32); +#else union { uint64_t ll; uint32_t l[2]; @@ -82,6 +87,7 @@ static inline uint64_t av_const av_bswap64(uint64_t x) r.l[0] = av_bswap32 (w.l[1]); r.l[1] = av_bswap32 (w.l[0]); return r.ll; +#endif } #endif |