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Corrections in fn_time conversions

This commit is contained in:
Piotr Krysik 2017-10-16 15:47:38 +02:00
parent 96f2ea75b0
commit ffd09acd8d
1 changed files with 9 additions and 10 deletions
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19
python/misc_utils/fn_time.py
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@ -59,31 +59,30 @@ def fn_time_diff_delta(fn_x, fn_ref, time_diff_hint=0):
#* time_hint - coarse time for fn_x that is used as a hint to avoid ambiguities caused by modulo operation applied to frame numbers. The correct are values from range <time2_precise-__hiperframe/2, time2_precise+__hiperframe/2> (where time2_precise is exact time of the first sample in frame fn_x)
#* ts_num - number of timeslot in the frame
def fn_time_delta(fn_ref, time_ref, fn_x, time_hint=None, ts_num=None):
def fn_time_delta(fn_ref, time_ref, fn_x, time_hint=None, ts_num=0, ts_ref=0):
if time_hint is None:
time_hint = time_ref
if ts_num is None:
ts_num = 0
time_diff_hint = time_hint-time_ref
fn_delta = fn_time_diff_delta(fn_x,fn_ref, time_diff_hint)
time_x_precise = fn_delta*__frame_period+time_ref+ts_num*__ts_period
time_x_precise = fn_delta*__frame_period+time_ref+(ts_num-ts_ref)*__ts_period
return fn_delta, time_x_precise
if __name__ == "__main__":
fn1 = 10000
ts_ref = 4
time1 = 10
for fn2 in xrange(__hyper_frame/2+fn1-10,__hyper_frame/2*10+fn1+10,10):
time2 = time1 + (fn2-fn1)*__frame_period
ts_x = int(uniform(0,8))
time2 = time1 + (fn2-fn1)*__frame_period + (ts_ref-ts_x)*__ts_period
error = uniform(-6200,6200)
time2_err = time2+error
fn_delta, time2_precise = fn_time_delta(fn1, time1, fn2, time2_err)
fn_delta, time2_precise = fn_time_delta(fn1, time1, fn2, time2_err, ts_x, ts_ref)
if fn_delta != fn2-fn1:
print "dupa:", fn2, error#, 'fn_delta:'+str(fn_delta), time2, error, frames_diff_h4, (time2-time1)/(__hyper_frame*__frame_period), time_diff_hint_h4_prev, time_diff_hint
print "bad fn:", fn2, error#, 'fn_delta:'+str(fn_delta), time2, error, frames_diff_h4, (time2-time1)/(__hyper_frame*__frame_period), time_diff_hint_h4_prev, time_diff_hint
time_diff_hint = time2 - time2_precise
if time_diff_hint > 0.1:
print "dupa"
if time_diff_hint > 0.0001:
print "bad time diff"