功 能: 获取当前的系统时间，返回的结果是一个time_t类型，其实就是一个大整数，其值表示从UTC(Coord...
/* Get current value of clock CLOCK_ID and store it in TP. */externintclock_gettime(clockid_t__clock_id,structtimespec*__tp)__THROW;/* POSIX.1b structure for a time value. This is like a `struct timeval' buthas nanoseconds instead of microseconds. */structtimespec{__kernel_time_tt...
px_uintlasttime=PX_TimeGetTimeUs();for(inti=0;i<100;i++){while(1){px_uintnow=PX_TimeGet...
time.h Provides time-related structures and functions. Data Structures Data Structure Name Description timeval Describes a period of time, accurate to microseconds. timespec Describes a period of time, accurate to nanoseconds. itimerval Describes a timer. timezone Describes a time zone. time...
[4]; uint32_t extension_size; }; struct entry_time { uint32_t seconds; uint32_t nanoseconds; }; struct entry_short { struct entry_time ctime; struct entry_time mtime; uint32_t dev; uint32_t ino; uint32_t mode; uint32_t uid; uint32_t gid; uint32_t file_size; git_oid oid...
// 创建延期的时间 2S,因为dispatch_time使用的时间是纳秒,尼玛,比毫秒还小,太夸张了!!! dispatch_time_t delayInNanoSeconds =dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC); // 得到全局队列 dispatch_queue_t concurrentQueue =dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT,...
因为我们在上面已经认为了adjustedReleaseTimeNs 就是我们实际的送显时间,所以,这里我们需要对音视频时间间隔再做一个校准,而这个值,就是最终经过精确计算得出的音视频时间间隔,有个这个值,接下来要做的,就是我前面说的去做同步了,看音视频到底谁超前滞后,该等待下次送显还是丢帧。 2.丢帧还是下次送显判断: 拿到...
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I always use the clock_gettime() function, returning time from the CLOCK_MONOTONIC clock. The time returned is the amount of time, in seconds and nanoseconds, since some unspecified point in the past, such as system startup of the epoch. 我总是使用clock_gettime()函数，从clock_...
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