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#7 NXDN Decoder support. Redesigns tuner and channel frequency error management. (#2431)

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Closes #7 

NXDN Decoder

* Implements: NXDN4800, NXDN9600, Type-C and Type-D decoding and trunk tracking.
* Redesigns tuner and channel frequency error management.
This commit is contained in:
Denny Sheirer
2026-07-08 03:44:08 -04:00
committed by GitHub
parent a053315675
commit 7945f0ce63
445 changed files with 30854 additions and 2053 deletions
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45
src/main/java/io/github/dsheirer/bits/LongField.java
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@@ -1,6 +1,6 @@
/*
* *****************************************************************************
* Copyright (C) 2014-2024 Dennis Sheirer
* Copyright (C) 2014-2026 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
@@ -39,6 +39,15 @@ public record LongField(int start, int end)
}
}
/**
* Width of the field in bit positions
* @return width
*/
public int width()
{
return end() - start() + 1;
}
/**
* Utility constructor method.
* @param start index (inclusive)
@@ -101,7 +110,17 @@ public record LongField(int start, int end)
}
/**
* Utility constructor method for a field with two octets of length.
* Utility constructor method for a field with 23 bits of length.
* @param start index (inclusive)
* @return constructed bit field.
*/
public static LongField length23(int start)
{
return new LongField(start, (start + 22));
}
/**
* Utility constructor method for a field with three octets of length.
* @param start index (inclusive)
* @return constructed bit field.
*/
@@ -111,7 +130,7 @@ public record LongField(int start, int end)
}
/**
* Utility constructor method for a field with three octets of length.
* Utility constructor method for a field with four octets of length.
* @param start index (inclusive)
* @return constructed bit field.
*/
@@ -119,4 +138,24 @@ public record LongField(int start, int end)
{
return new LongField(start, (start + 31));
}
/**
* Utility constructor method for a field with seven octets of length.
* @param start index (inclusive)
* @return constructed bit field.
*/
public static LongField length56(int start)
{
return new LongField(start, (start + 55));
}
/**
* Utility constructor method for a field with eight octets of length.
* @param start index (inclusive)
* @return constructed bit field.
*/
public static LongField length64(int start)
{
return new LongField(start, (start + 63));
}
}