Backport recent changes from mainline.

[libsigrokdecode.git] / decoders / morse / pd.py

diff --git a/decoders/morse/pd.py b/decoders/morse/pd.py
index 3048332354f4a86585ef3fc55fc16796cf2c39fb..f6ff7188d4498f1232313d3fe418728e049efec1 100644 (file)
--- a/decoders/morse/pd.py
+++ b/decoders/morse/pd.py
@@ -120,7 +120,8 @@ class Decoder(srd.Decoder):
     desc = 'Demodulated morse code protocol.'
     license = 'gplv2+'
     inputs = ['logic']
-    outputs = ['morse']
+    outputs = []
+    tags = ['Encoding']
     channels = (
         {'id': 'data', 'name': 'Data', 'desc': 'Data line'},
     )
@@ -165,7 +166,7 @@ class Decoder(srd.Decoder):
             curtime = self.samplenum
             dt = (curtime - prevtime) / self.samplerate
             units = dt / timeunit
-            iunits = round(units)
+            iunits = int(max(1, round(units)))
             error = abs(units - iunits)
 
             symbol = (pval, iunits)
@@ -175,15 +176,17 @@ class Decoder(srd.Decoder):
                 continue
 
             self.put(prevtime, curtime, self.out_ann, [0, ['{:.3g}'.format(dt)]])
-            self.put(prevtime, curtime, self.out_ann, [1, ['{:.1f}*{:.3g}'.format(units, timeunit)]])
 
             if symbol in symbols:
+                self.put(prevtime, curtime, self.out_ann, [1, ['{:.1f}*{:.3g}'.format(units, timeunit)]])
                 yield (prevtime, curtime, symbol)
+            else:
+                self.put(prevtime, curtime, self.out_ann, [1, ['!! {:.1f}*{:.3g} !!'.format(units, timeunit)]])
 
             prevtime = curtime
 
             thisunit = dt / iunits
-            timeunit += (thisunit - timeunit) * 0.02 * iunits # Adapt.
+            timeunit += (thisunit - timeunit) * 0.2 * max(0, 1 - 2*error) # Adapt.
 
     def decode_morse(self):
         # Group symbols into letters.