mirror of https://github.com/mpv-player/mpv
42 lines
837 B
C
42 lines
837 B
C
// Precise timer routines for LINUX (C) LGB & A'rpi/ASTRAL
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#include <unistd.h>
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#include <sys/time.h>
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// Returns current time in microseconds
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unsigned int GetTimer(){
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struct timeval tv;
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struct timezone tz;
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// float s;
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gettimeofday(&tv,&tz);
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// s=tv.tv_usec;s*=0.000001;s+=tv.tv_sec;
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return (tv.tv_sec*1000000+tv.tv_usec);
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}
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static unsigned int RelativeTime=0;
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// Returns time spent between now and last call in seconds
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float GetRelativeTime(){
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unsigned int t,r;
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t=GetTimer();
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// t*=16;printf("time=%ud\n",t);
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r=t-RelativeTime;
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RelativeTime=t;
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return (float)r * 0.000001F;
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}
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// Initialize timer, must be called at least once at start
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void InitTimer(){
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GetRelativeTime();
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}
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#if 0
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void main(){
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float t=0;
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InitTimer();
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while(1){ t+=GetRelativeTime();printf("time= %10.6f\r",t);fflush(stdout); }
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}
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#endif
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