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https://github.com/mpv-player/mpv.git
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59dd7d94af
Linux and macOS already use nanosecond resolution for their sleep functions. It was just being converted from microseconds before. Since we have mp_time_ns now, go ahead and bump the precision here. The timer for windows uses some timeBeginPeriod thing which I'm not sure what it does really but whatever just convert the units to ms like they were doing before. There's really no reason to keep the mp_sleep_us helper around. A multiplication by 1000 is trivial and underlying OS clocks have nanosecond precision.
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/*
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* precise timer routines for Linux/UNIX
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* copyright (C) LGB & A'rpi/ASTRAL
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*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <time.h>
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#include "timer.h"
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void mp_sleep_ns(int64_t ns)
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{
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if (ns < 0)
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return;
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struct timespec ts;
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ts.tv_sec = ns / UINT64_C(1000000000);
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ts.tv_nsec = ns % UINT64_C(1000000000);
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nanosleep(&ts, NULL);
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}
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uint64_t mp_raw_time_ns(void)
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{
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struct timespec tp = {0};
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#if defined(CLOCK_MONOTONIC_RAW)
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clock_gettime(CLOCK_MONOTONIC_RAW, &tp);
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#else
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timespec_get(&tp, TIME_UTC);
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#endif
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return tp.tv_sec * UINT64_C(1000000000) + tp.tv_nsec;
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}
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void mp_raw_time_init(void)
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{
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}
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