- if oldbyte == s:
- continue
- for i in range(channels):
- curbit = (s & (1 << i)) >> i
- # Optimization: Skip identical bits (no transitions).
- if oldbit[i] == curbit:
- continue
- elif (oldbit[i] == 0 and curbit == 1):
- rising[i] += 1
- elif (oldbit[i] == 1 and curbit == 0):
- falling[i] += 1
- oldbit[i] = curbit
- oldbyte = s
-
- # Total number of transitions is the sum of rising and falling edges.
- for i in range(channels):
- transitions[i] = rising[i] + falling[i]
+ if lastsample != s:
+ for i in range(channels):
+ curbit = (s & (1 << i)) >> i
+ # Optimization: Skip identical bits (no transitions).
+ if oldbit[i] == curbit:
+ continue
+ elif (oldbit[i] == 0 and curbit == 1):
+ rising[i] += 1
+ elif (oldbit[i] == 1 and curbit == 0):
+ falling[i] += 1
+ oldbit[i] = curbit