realtime = False; try: rtpars = rtsched.thread_policy_get(0, rtsched.THREAD_TIME_CONSTRAINT_POLICY ) print "THREAD_TIME_CONSTRAINT_POLICY: ", rtpars def rt(): if realtime: rtsched.thread_policy_set( 0, rtsched.THREAD_TIME_CONSTRAINT_POLICY, 5e3, 2.5e3, 3e3 ) except: def rt(): pass rt() HRTime.tic() for i in range(N): s=numpy.sin(i) c=numpy.cos(i) print HRTime.toc() rt() HRTime.tic() for i in range(N): (s,c)=sincos(i) print HRTime.toc() angles= array( [0,45,90,135,180,225,270,315,360] ) * 2 * pi / 360 print sincos( array( [0,45,90,135,180,225,270,315,360] ), 360 ) print sincos( angles )
def rt(): rtsched.thread_policy_set( 0, rtsched.THREAD_TIME_CONSTRAINT_POLICY, 5e3, 2.5e3, 3e3 ) except: def rt(): pass else: def rt(): pass X = arange(-10*loops, 10*loops) / float(loops) X5 = arange(-10*loops*5, 10*loops*5) / float(loops*5) rt() start=clock() HRTime.tic() for x in X: (s,c) = sincos_noop(x) overhead = HRTime.toc() overhead_CPU = clock() - start print 'Python calling/argument parsing overhead: %d calls in %g:%g seconds\n' %(loops, overhead_CPU, overhead) rt() start=clock() HRTime.tic() for x in X: s=sin(x) c=cos(x) sin_cos_time = HRTime.toc() sin_cos_CPU = clock() - start
from appscript import *
import HRTime
import sys
theMovieDoc = app('Quicktime Player 7').open('/Volumes/Win/Video/INRETS/videoTests/LaneSplitting-full.qi2m')
timeScale = float(theMovieDoc.time_scale.get())
duration = theMovieDoc.duration.get()/timeScale
theMovieDocsCurrentTime = theMovieDoc.current_time.get
theMovieDocsNewTime = theMovieDoc.current_time.set
currentTime = theMovieDocsCurrentTime()
theMovieDocsNewTime( duration / 2.0 )
print >>sys.stderr, theMovieDocsNewTime, type(theMovieDocsNewTime), dir(theMovieDocsNewTime)
HRTime.tic()
for i in xrange(int(duration+0.5)):
theMovieDocsNewTime( i * timeScale )
t = HRTime.toc()
print >>sys.stderr, '%d frame steps in %g seconds - %gfps' %(i, t, t/i)
start = HRTime.HRTime()
theMovieDoc.current_time.set(0)
t = HRTime.HRTime() - start
n = 0
while t < duration:
theMovieDocsNewTime( t * timeScale )
t = HRTime.HRTime() - start
n += 1
print >>sys.stderr, '%d frame steps in %g seconds' %(n, t)
import HRTime
import sys
theMovieDoc = app('QTVOD').open('/Volumes/Win/Video/INRETS/videoTests/P3_Parcours3-S.VOD')
duration = theMovieDoc.duration.get()
theMovieDocsCurrentTime = theMovieDoc.currentTime.get
theMovieDocsNewTime = theMovieDoc.currentTime.set
theMovieDocNextFrame = theMovieDoc.stepForward
currentTime = theMovieDocsCurrentTime()
theMovieDocsNewTime( duration / 2.0 )
print >>sys.stderr, dir(theMovieDoc), theMovieDocsNewTime, type(theMovieDocsNewTime), dir(theMovieDocsNewTime)
print >>sys.stderr, 'Checking maximum playback speed of every frame (first N frames)'
HRTime.tic()
for i in xrange(int(duration+0.5)):
theMovieDocNextFrame()
t = HRTime.toc()
print >>sys.stderr, '%d frame steps in %g seconds - %gfps' %(i, t, i/t)
print >>sys.stderr, 'Checking maximum "RT" playback speed'
start = HRTime.HRTime()
theMovieDocsNewTime(0)
t = HRTime.HRTime() - start
n = 0
while t < duration:
theMovieDocsNewTime( t )
t = HRTime.HRTime() - start
n += 1
print >>sys.stderr, '%d frames in %g seconds - %gfps' %(n, t, n/t)
