00001 /* 00002 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> 00003 * 00004 * This file is part of FFmpeg. 00005 * 00006 * FFmpeg is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU Lesser General Public 00008 * License as published by the Free Software Foundation; either 00009 * version 2.1 of the License, or (at your option) any later version. 00010 * 00011 * FFmpeg is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public 00017 * License along with FFmpeg; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00019 */ 00020 00021 #ifndef AVUTIL_X86_TIMER_H 00022 #define AVUTIL_X86_TIMER_H 00023 00024 #include <stdint.h> 00025 00026 #define AV_READ_TIME read_time 00027 00028 static inline uint64_t read_time(void) 00029 { 00030 uint32_t a, d; 00031 __asm__ volatile("rdtsc" : "=a" (a), "=d" (d)); 00032 return ((uint64_t)d << 32) + a; 00033 } 00034 00035 #endif /* AVUTIL_X86_TIMER_H */
1.5.8