add js8 decoding if available

owrx/dsp.py

@@ -1,6 +1,6 @@
-from owrx.config import Config
 from owrx.meta import MetaParser
 from owrx.wsjt import WsjtParser
+from owrx.js8 import Js8Parser
 from owrx.aprs import AprsParser
 from owrx.pocsag import PocsagParser
 from owrx.source import SdrSource
@@ -22,6 +22,7 @@ class DspManager(csdr.output):
             "wsjt_demod": WsjtParser(self.handler),
             "packet_demod": AprsParser(self.handler),
             "pocsag_demod": PocsagParser(self.handler),
+            "js8_demod": Js8Parser(self.handler),
         }
 
         self.props = PropertyStack()

owrx/feature.py

@@ -40,6 +40,7 @@ class FeatureDetector(object):
         "wsjt-x": ["wsjtx", "sox"],
         "packet": ["direwolf", "sox"],
         "pocsag": ["digiham", "sox"],
+        "js8call": ["js8", "sox"],
     }
 
     def feature_availability(self):
@@ -370,6 +371,12 @@ class FeatureDetector(object):
         """
         return reduce(and_, map(self.command_is_runnable, ["jt9", "wsprd"]), True)
 
+    def has_js8(self):
+        """
+        To decode JS8, you will need to install [JS8Call](http://js8call.com/)
+        """
+        return self.command_is_runnable("js8")
+
     def has_alsa(self):
         """
         Some SDR receivers are identifying themselves as a soundcard. In order to read their data, OpenWebRX relies

owrx/js8.py

@@ -0,0 +1,32 @@
+from .wsjt import WsjtChopper
+from .parser import Parser
+import re
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class Js8Chopper(WsjtChopper):
+    def getInterval(self):
+        return 15
+
+    def getFileTimestampFormat(self):
+        return "%y%m%d_%H%M%S"
+
+    def decoder_commandline(self, file):
+        return ["js8", "--js8", "-d", str(self.decoding_depth("js8")), file]
+
+
+class Js8Parser(Parser):
+    decoderRegex = re.compile(" ?<Decode(Started|Debug|Finished)>")
+
+    def parse(self, raw):
+        freq, raw_msg = raw
+        self.setDialFrequency(freq)
+        msg = raw_msg.decode().rstrip()
+        if Js8Parser.decoderRegex.match(msg):
+            return
+        if msg.startswith(" EOF on input file"):
+            return
+        logger.debug(msg)