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P25 work in progress

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dennis.sheirer
2015-01-02 14:08:22 +00:00
parent 95ddadc598
commit 03460eeb19
122 changed files with 5372 additions and 279 deletions
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127
src/decode/p25/message/ldu/LDU1Message.java
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@@ -2,25 +2,95 @@ package decode.p25.message.ldu;
import alias.AliasList;
import bits.BitSetBuffer;
import crc.CRC;
import decode.p25.message.P25Message;
import decode.p25.P25Interleave;
import decode.p25.reference.DataUnitID;
import decode.p25.reference.LinkControlOpcode;
import decode.p25.reference.Vendor;
import decode.p25.reference.VendorLinkControlOpcode;
import edac.CRC;
public class LDU1Message extends P25Message
public class LDU1Message extends LDUMessage
{
public static final int IMBE_1 = 64;
public static final int IMBE_2 = 208;
public static final int IMBE_3 = 392;
public static final int IMBE_4 = 576;
public static final int IMBE_5 = 760;
public static final int IMBE_6 = 944;
public static final int IMBE_7 = 1128;
public static final int IMBE_8 = 1312;
public static final int IMBE_9 = 1488;
public static final int ENCRYPTION_FLAG = 352;
public static final int IMPLICIT_VENDOR_FLAG = 353;
public static final int[] OPCODE = { 354,355,356,357,362,363 };
public static final int[] VENDOR = { 364,365,366,367,372,373,374,375 };
public static final int[] OCTET_1 = { 364,365,366,367,372,373,374,375 };
public static final int[] OCTET_2 = { 376,377,382,383,384,385,386,387 };
public static final int[] OCTET_3 = { 536,537,538,539,540,541,546,547 };
public static final int[] OCTET_4 = { 548,549,550,551,556,557,558,559 };
public static final int[] OCTET_5 = { 560,561,566,567,568,569,570,571 };
public static final int[] OCTET_6 = { 720,721,722,723,724,725,730,731 };
public static final int[] OCTET_7 = { 732,733,734,735,740,741,742,743 };
public static final int[] OCTET_8 = { 744,745,750,751,752,753,754,755 };
public LDU1Message( BitSetBuffer message, DataUnitID duid,
AliasList aliasList )
{
super( message, duid, aliasList );
deinterleaveVoiceFrames();
/* NID CRC is checked in the message framer, thus a constructed message
* means it passed the CRC */
mCRC = new CRC[ 2 ];
mCRC[ 0 ] = CRC.PASSED;
checkCRC();
}
/**
* Subclass constructor from an existing LDU1Message
*/
protected LDU1Message( LDU1Message message )
{
super( message.getSourceMessage(), DataUnitID.LDU1, message.getAliasList() );
mCRC = message.mCRC;
}
private void deinterleaveVoiceFrames()
{
P25Interleave.deinterleaveVoice( mMessage, IMBE_1, IMBE_1 + 144 );
P25Interleave.deinterleaveVoice( mMessage, IMBE_2, IMBE_2 + 144 );
P25Interleave.deinterleaveVoice( mMessage, IMBE_3, IMBE_3 + 144 );
P25Interleave.deinterleaveVoice( mMessage, IMBE_4, IMBE_4 + 144 );
P25Interleave.deinterleaveVoice( mMessage, IMBE_5, IMBE_5 + 144 );
P25Interleave.deinterleaveVoice( mMessage, IMBE_6, IMBE_6 + 144 );
P25Interleave.deinterleaveVoice( mMessage, IMBE_7, IMBE_7 + 144 );
P25Interleave.deinterleaveVoice( mMessage, IMBE_8, IMBE_8 + 144 );
P25Interleave.deinterleaveVoice( mMessage, IMBE_9, IMBE_9 + 144 );
}
private void checkCRC()
{
}
@Override
public String getMessage()
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();
@@ -30,10 +100,55 @@ public class LDU1Message extends P25Message
sb.append( getDUID().getLabel() );
sb.append( " " );
sb.append( mMessage.toString() );
if( isEncrypted() )
{
sb.append( "ENCRYPTED" );
}
else
{
if( isImplicitFormat() || getVendor() == Vendor.STANDARD )
{
sb.append( getOpcode().getLabel() );
}
else
{
sb.append( "VENDOR:" + getVendor().getLabel() + " " );
sb.append( getVendorOpcode().getLabel() );
}
}
return sb.toString();
}
public boolean isEncrypted()
{
return mMessage.get( ENCRYPTION_FLAG );
}
public boolean isImplicitFormat()
{
return mMessage.get( IMPLICIT_VENDOR_FLAG );
}
public LinkControlOpcode getOpcode()
{
return LinkControlOpcode.fromValue( mMessage.getInt( OPCODE ) );
}
public VendorLinkControlOpcode getVendorOpcode()
{
return VendorLinkControlOpcode.fromValue( mMessage.getInt( OPCODE ) );
}
public Vendor getVendor()
{
if( isImplicitFormat() )
{
return Vendor.STANDARD;
}
return Vendor.fromValue( mMessage.getInt( VENDOR ) );
}
/* Temporary override */
public boolean isValid()