/* * copyright (c) 2006 Michael Niedermayer <[email protected]> * * 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 CONFIG_LINUX_PERF # ifndef _GNU_SOURCE #define _GNU_SOURCE # endif # include <unistd.h> // read(3) # include <sys/ioctl.h> # include <asm/unistd.h> # include <linux/perf_event.h> #endif #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #if CONFIG_MACOS_KPERF #include "macos_kperf.h" #elif HAVE_MACH_ABSOLUTE_TIME #include <mach/mach_time.h> #endif #include "common.h" #include "log.h" #if ARCH_AARCH64 # include "aarch64/timer.h" #elif ARCH_ARM # include "arm/timer.h" #elif ARCH_PPC # include "ppc/timer.h" #elif ARCH_RISCV # include "riscv/timer.h" #elif ARCH_X86 # include "x86/timer.h" #elif ARCH_LOONGARCH # include "loongarch/timer.h" #endif #if !defined(AV_READ_TIME) # if HAVE_GETHRTIME #define AV_READ_TIME … # elif HAVE_MACH_ABSOLUTE_TIME #define AV_READ_TIME … # endif #endif #ifndef FF_TIMER_UNITS #define FF_TIMER_UNITS … #endif #define TIMER_REPORT(id, tdiff) … #if CONFIG_LINUX_PERF #define START_TIMER … #define STOP_TIMER … #elif CONFIG_MACOS_KPERF #define START_TIMER … #define STOP_TIMER … #elif defined(AV_READ_TIME) #define START_TIMER … \ #define STOP_TIMER(id) … #else #define START_TIMER #define STOP_TIMER … #endif #endif /* AVUTIL_TIMER_H */
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