mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-23 15:53:08 +00:00
79 lines
2.8 KiB
C
79 lines
2.8 KiB
C
/*
|
|
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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,
|
|
* 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
|
|
* 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 <stdlib.h>
|
|
#include <stdint.h>
|
|
#include <inttypes.h>
|
|
|
|
#include "config.h"
|
|
|
|
#if ARCH_ARM
|
|
# include "arm/timer.h"
|
|
#elif ARCH_BFIN
|
|
# include "bfin/timer.h"
|
|
#elif ARCH_PPC
|
|
# include "ppc/timer.h"
|
|
#elif ARCH_X86
|
|
# include "x86/timer.h"
|
|
#endif
|
|
|
|
#if !defined(AV_READ_TIME) && HAVE_GETHRTIME
|
|
# define AV_READ_TIME gethrtime
|
|
#endif
|
|
|
|
#ifdef AV_READ_TIME
|
|
#define START_TIMER \
|
|
uint64_t tend; \
|
|
uint64_t tstart = AV_READ_TIME(); \
|
|
|
|
#define STOP_TIMER(id) \
|
|
tend = AV_READ_TIME(); \
|
|
{ \
|
|
static uint64_t tsum = 0; \
|
|
static int tcount = 0; \
|
|
static int tskip_count = 0; \
|
|
if (tcount < 2 || \
|
|
tend - tstart < 8 * tsum / tcount || \
|
|
tend - tstart < 2000) { \
|
|
tsum+= tend - tstart; \
|
|
tcount++; \
|
|
} else \
|
|
tskip_count++; \
|
|
if (((tcount + tskip_count) & (tcount + tskip_count - 1)) == 0) { \
|
|
av_log(NULL, AV_LOG_ERROR, \
|
|
"%"PRIu64" decicycles in %s, %d runs, %d skips\n", \
|
|
tsum * 10 / tcount, id, tcount, tskip_count); \
|
|
} \
|
|
}
|
|
#else
|
|
#define START_TIMER
|
|
#define STOP_TIMER(id) { }
|
|
#endif
|
|
|
|
#endif /* AVUTIL_TIMER_H */
|