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🎥 Command line media player
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C
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273/* * 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/>. */
#ifndef MPLAYER_TIMER_H#define MPLAYER_TIMER_H
#include <inttypes.h>#include "config.h"
// Initialize timer, must be called at least once at start.void mp_time_init(void);
// Return time in nanoseconds. Never wraps. Never returns negative values.int64_t mp_time_ns(void);
// Return time in nanoseconds. Converts raw time in nanoseconds to mp time, subtracts init offset.int64_t mp_time_ns_from_raw_time(uint64_t raw_time);
// Return time in seconds. Can have down to 1 nanosecond resolution, but will// be much worse when casted to float.double mp_time_sec(void);
// Provided by OS specific functions (timer-linux.c)void mp_raw_time_init(void);// ensure this doesn't return 0uint64_t mp_raw_time_ns(void);
// Sleep in nanoseconds.void mp_sleep_ns(int64_t ns);
#if HAVE_DARWIN// Converts mach time to raw time in nanoseconds and returns it.uint64_t mp_raw_time_ns_from_mach(uint64_t mach_time);#endif
#ifdef _WIN32// returns: timer resolution in ns if needed and started successfully, else 0int64_t mp_start_hires_timers(int64_t wait_ns);
// call unconditionally with the return value of mp_start_hires_timersvoid mp_end_hires_timers(int64_t resolution_ns);#endif /* _WIN32 */
// Converts time units to nanoseconds (int64_t)#define MP_TIME_S_TO_NS(s) ((s) * INT64_C(1000000000))#define MP_TIME_MS_TO_NS(ms) ((ms) * INT64_C(1000000))#define MP_TIME_US_TO_NS(us) ((us) * INT64_C(1000))
// Converts nanoseconds to specified time unit (double)#define MP_TIME_NS_TO_S(ns) ((ns) / (double)1000000000)#define MP_TIME_NS_TO_MS(ns) ((ns) / (double)1000000)#define MP_TIME_NS_TO_US(ns) ((ns) / (double)1000)
// Add a time in seconds to the given time in nanoseconds, and return it.// Takes care of possible overflows. Never returns a negative or 0 time.int64_t mp_time_ns_add(int64_t time_ns, double timeout_sec);
#endif /* MPLAYER_TIMER_H */