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Adds preliminary support for legacy P25 CAI VSELP voice frames. VSELP 1

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and 2 messages simply capture the message at this point -- don't yet
know the format for the voice frames and embedded signalling.
This commit is contained in:
denny
2016-01-27 19:18:31 -05:00
parent bca39e74ce
commit 12ff5513b7
3 changed files with 95 additions and 0 deletions
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10
src/module/decode/p25/P25MessageFramer.java
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@@ -17,6 +17,8 @@ import module.decode.p25.message.tdu.lc.TDULCMessageFactory;
import module.decode.p25.message.tdu.lc.TDULinkControlMessage;
import module.decode.p25.message.tsbk.TSBKMessage;
import module.decode.p25.message.tsbk.TSBKMessageFactory;
import module.decode.p25.message.vselp.VSELP1Message;
import module.decode.p25.message.vselp.VSELP2Message;
import module.decode.p25.reference.DataUnitID;
import org.slf4j.Logger;
@@ -630,6 +632,14 @@ public class P25MessageFramer implements Listener<Dibit>
mComplete = true;
break;
case VSELP1:
mComplete = true;
dispatch( new VSELP1Message( mMessage.copy(), mDUID, mAliasList ) );
break;
case VSELP2:
mComplete = true;
dispatch( new VSELP2Message( mMessage.copy(), mDUID, mAliasList ) );
break;
case UNKN:
mComplete = true;
dispatch( new P25Message( mMessage.copy(), mDUID, mAliasList ) );

43
src/module/decode/p25/message/vselp/VSELP1Message.java Normal file
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@@ -0,0 +1,43 @@
package module.decode.p25.message.vselp;
import alias.AliasList;
import bits.BinaryMessage;
import module.decode.p25.message.P25Message;
import module.decode.p25.reference.DataUnitID;
import module.decode.p25.reference.Vendor;
public class VSELP1Message extends P25Message
{
/**
* Motorola VSELP audio message 1.
*
* @param message
* @param duid
* @param aliasList
*/
public VSELP1Message( BinaryMessage message, DataUnitID duid, AliasList aliasList )
{
super( message, duid, aliasList );
}
@Override
public String getMessage()
{
StringBuilder sb = new StringBuilder();
sb.append( getMessageStub() );
sb.append( " " );
sb.append( mMessage.toString() );
return sb.toString();
}
public String getMessageStub()
{
StringBuilder sb = new StringBuilder();
sb.append( "VSELP 1 VOICE FRAME" );
return sb.toString();
}
}

42
src/module/decode/p25/message/vselp/VSELP2Message.java Normal file
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@@ -0,0 +1,42 @@
package module.decode.p25.message.vselp;
import alias.AliasList;
import bits.BinaryMessage;
import module.decode.p25.message.P25Message;
import module.decode.p25.reference.DataUnitID;
public class VSELP2Message extends P25Message
{
/**
* Motorola VSELP audio message 1.
*
* @param message
* @param duid
* @param aliasList
*/
public VSELP2Message( BinaryMessage message, DataUnitID duid, AliasList aliasList )
{
super( message, duid, aliasList );
}
@Override
public String getMessage()
{
StringBuilder sb = new StringBuilder();
sb.append( getMessageStub() );
sb.append( " " );
sb.append( mMessage.toString() );
return sb.toString();
}
public String getMessageStub()
{
StringBuilder sb = new StringBuilder();
sb.append( "VSELP 2 VOICE FRAME" );
return sb.toString();
}
}