From: Gerhard Sittig <redacted>
Date: Sat, 25 Jul 2020 15:51:07 +0000 (+0200)
Subject: ir_nec: only use the samplerate after receiving the value
X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=commitdiff_plain;h=b3f83fda31bfeef63b0ed5610c7b2986ad80dcc5

ir_nec: only use the samplerate after receiving the value

The metadata() method unconditionally referenced the samplerate even
though the value is only available conditionally. Move the references to
a location after the samplerate presence check.
---

diff --git a/decoders/ir_nec/pd.py b/decoders/ir_nec/pd.py
index 2e547d5..07323a7 100644
--- a/decoders/ir_nec/pd.py
+++ b/decoders/ir_nec/pd.py
@@ -133,6 +133,8 @@ class Decoder(srd.Decoder):
     def metadata(self, key, value):
         if key == srd.SRD_CONF_SAMPLERATE:
             self.samplerate = value
+
+    def calc_rate(self):
         self.tolerance = 0.05 # +/-5%
         self.lc = int(self.samplerate * 0.0135) - 1 # 13.5ms
         self.rc = int(self.samplerate * 0.01125) - 1 # 11.25ms
@@ -177,6 +179,7 @@ class Decoder(srd.Decoder):
     def decode(self):
         if not self.samplerate:
             raise SamplerateError('Cannot decode without samplerate.')
+        self.calc_rate()
 
         cd_count = None
         if self.options['cd_freq']: