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https://github.com/mpv-player/mpv
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84fa7ea411
The timestamps when making a log file is actually dependent on MP_START_TIME. This is a 10 microsecond offset that was added to the timer as an offset. With the nanosecond change, this unit needs to be converted as well so the offset is the same as before. After doing that, we need to change the various mp_time_us calls in msg to mp_time_ns and do the right conversion. This fixes the logs timestamps (i.e. so they aren't negative anymore).
75 lines
2.6 KiB
C
75 lines
2.6 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
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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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#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 nanoseconds. Never wraps. Never returns 0 or negative values.
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int64_t mp_time_ns(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_ns(void);
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// Sleep in microseconds.
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void mp_sleep_us(int64_t us);
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#ifdef _WIN32
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// returns: timer resolution in ms if needed and started successfully, else 0
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int mp_start_hires_timers(int wait_ms);
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// call unconditionally with the return value of mp_start_hires_timers
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void mp_end_hires_timers(int resolution_ms);
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#endif /* _WIN32 */
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#define MP_START_TIME 10 * INT64_C(1000000000)
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// Duration of a second in mpv time.
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#define MP_SECOND_US (1000 * 1000)
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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_time_us_add(int64_t time_us, double timeout_sec);
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// Add a time in seconds to the given time in nanoseconds, 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_time_ns_add(int64_t time_ns, 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_realtime(int64_t time_us);
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// Convert the mp time in nanoseconds to a timespec using CLOCK_REALTIME.
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struct timespec mp_time_ns_to_realtime(int64_t time_ns);
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// Convert the relative timeout in seconds to a timespec.
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// The timespec is absolute, using CLOCK_REALTIME.
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struct timespec mp_rel_time_to_timespec(double timeout_sec);
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#endif /* MPLAYER_TIMER_H */
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