from Components.Converter.Converter import Converter
+from Components.Element import cached
class FrontendInfo(Converter, object):
BER = 0
SNR = 1
AGC = 2
LOCK = 3
+ SNRdB = 4
- def __init__(self, type, *args, **kwargs):
- Converter.__init__(self)
+ def __init__(self, type):
+ Converter.__init__(self, type)
if type == "BER":
self.type = self.BER
elif type == "SNR":
self.type = self.SNR
+ elif type == "SNRdB":
+ self.type = self.SNRdB
elif type == "AGC":
self.type = self.AGC
else:
self.type = self.LOCK
+ @cached
def getText(self):
assert self.type != self.LOCK, "the text output of FrontendInfo cannot be used for lock info"
+ percent = None
if self.type == self.BER: # as count
count = self.source.ber
if count is not None:
percent = self.source.agc
elif self.type == self.SNR:
percent = self.source.snr
-
+ elif self.type == self.SNRdB:
+ if self.source.snr_db is not None:
+ return "%3.02f dB" % (self.source.snr_db / 100.0)
+ elif self.source.snr is not None: #fallback to normal SNR...
+ percent = self.source.snr
+ return "SNR:%d %%" % (percent * 100 / 65536)
if percent is None:
return "N/A"
return "%d %%" % (percent * 100 / 65536)
+ @cached
def getBool(self):
- assert self.type == LOCK, "the boolean output of FrontendInfo can only be used for lock info"
- return self.source.lock
+ assert self.type in [self.LOCK, self.BER], "the boolean output of FrontendInfo can only be used for lock or BER info"
+ if self.type == self.LOCK:
+ return self.source.lock
+ else:
+ return self.source.ber > 0
text = property(getText)
boolean = property(getBool)
+ @cached
def getValue(self):
assert self.type != self.LOCK, "the value/range output of FrontendInfo can not be used for lock info"
if self.type == self.AGC: