X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=decoders%2Fguess_bitrate%2Fpd.py;h=84cf6a1b17cc18766f0b2e70d2707dde99855708;hp=e30be124e10160f08769937bd0fc8a4a0a6c5800;hb=da9bcbd9f45b0153465c55ec726a0d76f6d7f01e;hpb=0169f19c53e195df2f96c4df731ad3214c59e20a

diff --git a/decoders/guess_bitrate/pd.py b/decoders/guess_bitrate/pd.py
index e30be12..84cf6a1 100644
--- a/decoders/guess_bitrate/pd.py
+++ b/decoders/guess_bitrate/pd.py
@@ -18,8 +18,6 @@
 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 ##
 
-# Bitrate / baudrate guessing protocol decoder
-
 import sigrokdecode as srd
 
 class Decoder(srd.Decoder):
@@ -31,14 +29,12 @@ class Decoder(srd.Decoder):
     license = 'gplv2+'
     inputs = ['logic']
     outputs = ['guess_bitrate']
-    probes = [
+    probes = (
         {'id': 'data', 'name': 'Data', 'desc': 'Data line'},
-    ]
-    optional_probes = []
-    options = {}
-    annotations = [
-        ['bitrate', 'Bitrate / baudrate'],
-    ]
+    )
+    annotations = (
+        ('bitrate', 'Bitrate / baudrate'),
+    )
 
     def putx(self, data):
         self.put(self.ss_edge, self.samplenum, self.out_ann, data)
@@ -49,12 +45,17 @@ class Decoder(srd.Decoder):
         self.first_transition = True
         self.bitwidth = None
 
-    def start(self, metadata):
-        self.samplerate = metadata['samplerate']
-        # self.out_proto = self.register(srd.OUTPUT_PYTHON)
+    def start(self):
+        # self.out_python = self.register(srd.OUTPUT_PYTHON)
         self.out_ann = self.register(srd.OUTPUT_ANN)
 
+    def metadata(self, key, value):
+        if key == srd.SRD_CONF_SAMPLERATE:
+            self.samplerate = value;
+
     def decode(self, ss, es, data):
+        if self.samplerate is None:
+            raise Exception("Cannot decode without samplerate.")
         for (self.samplenum, pins) in data:
 
             data = pins[0]