X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=decoders%2Fguess_bitrate%2Fpd.py;h=1d7434beb738fadfd2f51b91ddbf95502e1e9cb3;hp=585bd76c96449755b23ce794c347e521c756d2f4;hb=21cda9512f29947617da45822ab524b1f76f56c1;hpb=56c93143f54601280a119b64b1eea8dc4b591dcb

diff --git a/decoders/guess_bitrate/pd.py b/decoders/guess_bitrate/pd.py
index 585bd76..1d7434b 100644
--- a/decoders/guess_bitrate/pd.py
+++ b/decoders/guess_bitrate/pd.py
@@ -18,12 +18,13 @@
 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 ##
 
-# Bitrate / baudrate guessing protocol decoder
-
 import sigrokdecode as srd
 
+class SamplerateError(Exception):
+    pass
+
 class Decoder(srd.Decoder):
-    api_version = 1
+    api_version = 2
     id = 'guess_bitrate'
     name = 'Guess bitrate'
     longname = 'Guess bitrate/baudrate'
@@ -31,14 +32,12 @@ class Decoder(srd.Decoder):
     license = 'gplv2+'
     inputs = ['logic']
     outputs = ['guess_bitrate']
-    probes = [
+    channels = (
         {'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)
@@ -49,15 +48,16 @@ class Decoder(srd.Decoder):
         self.first_transition = True
         self.bitwidth = None
 
-    def start(self, metadata):
-        self.samplerate = metadata['samplerate']
-        # self.out_proto = self.add(srd.OUTPUT_PROTO, 'guess_bitrate')
-        self.out_ann = self.add(srd.OUTPUT_ANN, 'guess_bitrate')
+    def start(self):
+        self.out_ann = self.register(srd.OUTPUT_ANN)
 
-    def report(self):
-        pass
+    def metadata(self, key, value):
+        if key == srd.SRD_CONF_SAMPLERATE:
+            self.samplerate = value;
 
     def decode(self, ss, es, data):
+        if not self.samplerate:
+            raise SamplerateError('Cannot decode without samplerate.')
         for (self.samplenum, pins) in data:
 
             data = pins[0]