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issue #471: disable one of the demod checks #472

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Mar 8, 2020
Merged

issue #471: disable one of the demod checks #472

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8 changes: 3 additions & 5 deletions lddecode/core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1914,17 +1914,15 @@ def dropout_detect_demod(self):
# detect absurd fluctuations in pre-deemp demod, since only dropouts can cause them
# (current np.diff has a prepend option, but not in ubuntu 18.04's version)
iserr1 = f.data['video']['demod_raw'] > self.rf.freq_hz_half
iserr1 |= f.data['video']['demod_hpf'] > 1200000

#return iserr1 | iserr_rf
# This didn't work right for PAL (issue #471)
# iserr1 |= f.data['video']['demod_hpf'] > 3000000

# build sets of min/max valid levels

valid_min = np.full_like(f.data['video']['demod'], f.rf.iretohz(-60 if isPAL else -50))
valid_max = np.full_like(f.data['video']['demod'], f.rf.iretohz(150 if isPAL else 140))

# the minimum valid value during VSYNC is lower for PAL because of the pilot signal
minsync = -100 if self.rf.system == 'PAL' else -50
minsync = -100 if isPAL else -50

# these lines should cover both PAL and NTSC's hsync areas
if False:
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