#1573 Digital Coded Squelch (DCS) Auxiliary Decoder

src/main/java/io/github/dsheirer/identifier/dcs/DCSIdentifier.java

@@ -0,0 +1,48 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.identifier.dcs;
+
+import io.github.dsheirer.identifier.Form;
+import io.github.dsheirer.identifier.Identifier;
+import io.github.dsheirer.identifier.IdentifierClass;
+import io.github.dsheirer.identifier.Role;
+import io.github.dsheirer.module.decode.dcs.DCSCode;
+import io.github.dsheirer.protocol.Protocol;
+
+/**
+ * Digital Coded Squelch code identifier.  This is decoded from the transmitted signal and represents the FROM role.
+ */
+public class DCSIdentifier extends Identifier<DCSCode>
+{
+    /**
+     * Constructs an instance.
+     * @param code detected.
+     */
+    public DCSIdentifier(DCSCode code)
+    {
+        super(code, IdentifierClass.USER, Form.TONE, Role.FROM);
+    }
+
+    @Override
+    public Protocol getProtocol()
+    {
+        return Protocol.DCS;
+    }
+}

src/main/java/io/github/dsheirer/module/decode/DecoderFactory.java

@@ -39,6 +39,9 @@
 import io.github.dsheirer.module.decode.am.DecodeConfigAM;
 import io.github.dsheirer.module.decode.config.AuxDecodeConfiguration;
 import io.github.dsheirer.module.decode.config.DecodeConfiguration;
+import io.github.dsheirer.module.decode.dcs.DCSDecoder;
+import io.github.dsheirer.module.decode.dcs.DCSDecoderState;
+import io.github.dsheirer.module.decode.dcs.DCSMessageFilter;
 import io.github.dsheirer.module.decode.dmr.DMRDecoder;
 import io.github.dsheirer.module.decode.dmr.DMRDecoderState;
 import io.github.dsheirer.module.decode.dmr.DMRTrafficChannelManager;
@@ -456,6 +459,10 @@ public static List<Module> getAuxiliaryDecoders(AuxDecodeConfiguration config)
             {
                 switch(auxDecoder)
                 {
+                    case DCS:
+                        modules.add(new DCSDecoder());
+                        modules.add(new DCSDecoderState());
+                        break;
                     case FLEETSYNC2:
                         modules.add(new Fleetsync2Decoder());
                         modules.add(new Fleetsync2DecoderState());
@@ -516,6 +523,9 @@ public static List<IFilter<IMessage>> getMessageFilter(DecoderType decoder)
 
         switch(decoder)
         {
+            case DCS:
+                filters.add(new DCSMessageFilter());
+                break;
             case FLEETSYNC2:
                 filters.add(new FleetsyncMessageFilter());
                 break;

src/main/java/io/github/dsheirer/module/decode/DecoderType.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,7 +19,6 @@
 package io.github.dsheirer.module.decode;
 
 import io.github.dsheirer.protocol.Protocol;
-
 import java.util.EnumSet;
 
 /**
@@ -39,6 +38,7 @@ public enum DecoderType
     P25_PHASE2("P25 Phase 2", "P25-2", Protocol.APCO25_PHASE2),
 
     //Auxiliary Decoders
+    DCS("Digital Coded Squelch (DCS)", "DCS", Protocol.DCS),
     FLEETSYNC2("Fleetsync II", "Fleetsync2", Protocol.FLEETSYNC),
     LJ_1200("LJ1200 173.075", "LJ1200", Protocol.LOJACK),
     MDC1200("MDC1200", "MDC1200", Protocol.MDC1200),
@@ -73,7 +73,8 @@ public enum DecoderType
      * Auxiliary decoders that operate on in-band signalling in the decoded audio channel
      */
     public static final EnumSet<DecoderType> AUX_DECODERS =
-        EnumSet.of(DecoderType.FLEETSYNC2,
+        EnumSet.of(DecoderType.DCS,
+        DecoderType.FLEETSYNC2,
         DecoderType.LJ_1200,
         DecoderType.MDC1200,
         DecoderType.TAIT_1200);

src/main/java/io/github/dsheirer/module/decode/analog/AnalogDecoderState.java

@@ -121,6 +121,7 @@ private void continueCallEvent()
             startCallEvent();
         }
 
+        getIdentifierCollection().update(getTalkgroupIdentifier());
         mDecodeEvent.update(System.currentTimeMillis());
         broadcast(mDecodeEvent);
     }