mirror of
https://github.com/mpv-player/mpv
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56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/*
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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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MPLAYER_TIMER_H
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#define MPLAYER_TIMER_H
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#include <inttypes.h>
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// Initialize timer, must be called at least once at start.
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void mp_time_init(void);
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// Return time in microseconds. Never wraps. Never returns 0 or negative values.
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int64_t mp_time_us(void);
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// Return time in seconds. Can have down to 1 microsecond resolution, but will
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// be much worse when casted to float.
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double mp_time_sec(void);
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// Provided by OS specific functions (timer-linux.c)
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void mp_raw_time_init(void);
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uint64_t mp_raw_time_us(void);
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// Sleep in microseconds.
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void mp_sleep_us(int64_t us);
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#define MP_START_TIME 10000000
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// Return the amount of time that has passed since the last call, in
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// microseconds. *t is used to calculate the time that has passed by storing
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// the current time in it. If *t is 0, the call will return 0. (So that the
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// first call will return 0, instead of the absolute current time.)
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int64_t mp_time_relative_us(int64_t *t);
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// Add a time in seconds to the given time in microseconds, and return it.
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// Takes care of possible overflows. Never returns a negative or 0 time.
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int64_t mp_add_timeout(int64_t time_us, double timeout_sec);
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// Convert the mp time in microseconds to a timespec using CLOCK_REALTIME.
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struct timespec mp_time_us_to_timespec(int64_t time_us);
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#endif /* MPLAYER_TIMER_H */
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