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🎥 Command line media player
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465/* * precise timer routines for Linux/UNIX * copyright (C) LGB & A'rpi/ASTRAL * * This file is part of mpv. * * mpv 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. * * mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>. */
#include <errno.h>#include <stdlib.h>#include <time.h>
#include "common/common.h"#include "timer.h"
static clockid_t clk_id;
void mp_sleep_ns(int64_t ns){ if (ns < 0) return; struct timespec ts; ts.tv_sec = ns / MP_TIME_S_TO_NS(1); ts.tv_nsec = ns % MP_TIME_S_TO_NS(1); nanosleep(&ts, NULL);}
uint64_t mp_raw_time_ns(void){ struct timespec tp = {0}; clock_gettime(clk_id, &tp); return MP_TIME_S_TO_NS(tp.tv_sec) + tp.tv_nsec;}
void mp_raw_time_init(void){ static const clockid_t clock_ids[] = {#ifdef CLOCK_MONOTONIC_RAW CLOCK_MONOTONIC_RAW,#endif CLOCK_MONOTONIC, };
struct timespec tp; for (int i = 0; i < MP_ARRAY_SIZE(clock_ids); ++i) { clk_id = clock_ids[i]; if (!clock_gettime(clk_id, &tp)) return; } fputs("No clock source available!\n", stderr); abort();}