Dactyloidae/media/ffvpx/libavutil/timer.h

47 lines
1.2 KiB
C

/*
* copyright (c) 2006 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
* high precision timer, useful to profile code
*/
#ifndef AVUTIL_TIMER_H
#define AVUTIL_TIMER_H
#include "config.h"
#if HAVE_INLINE_ASM
#define AV_READ_TIME read_time
static inline uint64_t read_time(void)
{
#if ARCH_LOONGARCH64
uint64_t a, id;
__asm__ volatile ( "rdtime.d %0, %1" : "=r"(a), "=r"(id) :: );
return a;
#else
#define START_TIMER
#define STOP_TIMER(id) { }
#endif
#endif /* AVUTIL_TIMER_H */