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Adds 'ACTIVE' as a valid channel state to indicate that the channel is

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actively decoding, but no call or data is being transmitted.  This is
primarily used for P25 channels when TDU Link Control messages are
being transmitted in between voice or data transmissions on a channel.

Updated several of the P25 decoder state message processing sections to
keep the channel state UI updated with current call identifiers and
states.

Hard-coded channel state colors to remove inefficiency in the way that
channel state coloration was being handled.
This commit is contained in:
Denny
2018-08-11 05:36:30 -04:00
parent 9176ca610f
commit 8e4e4129ca
5 changed files with 195 additions and 147 deletions
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111
src/main/java/io/github/dsheirer/channel/state/State.java
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@@ -24,54 +24,114 @@ import java.util.EnumSet;
*/
public enum State
{
IDLE("IDLE")
/**
* Active state indicates that valid messages are being decoded that do not indicate any call or data
* activity. For example, this is used for P25 when a channel is actively transmitting Terminator Data
* Units in between data packets or at the beginning or end of a call.
*/
ACTIVE("ACTIVE")
{
@Override
public boolean canChangeTo(State state)
{
return state != TEARDOWN && state != RESET && state != OVERFLOW;
return state == CALL |
state == CONTROL ||
state == DATA ||
state == ENCRYPTED ||
state == FADE ||
state == TEARDOWN;
}
},
/**
* Indicates that call messages are being decoded, or a call is in progress (ie producing audio).
*/
CALL("CALL")
{
@Override
public boolean canChangeTo(State state)
{
return state == CONTROL || state == DATA || state == ENCRYPTED || state == FADE || state == TEARDOWN;
}
},
DATA("DATA")
{
@Override
public boolean canChangeTo(State state)
{
return state == CALL || state == CONTROL || state == ENCRYPTED || state == FADE || state == TEARDOWN;
}
},
ENCRYPTED("ENCRYPTED")
{
@Override
public boolean canChangeTo(State state)
{
return state == FADE || state == TEARDOWN;
return state == ACTIVE ||
state == CONTROL ||
state == DATA ||
state == ENCRYPTED ||
state == FADE ||
state == TEARDOWN;
}
},
/**
* Indicates a trunking control channel is being decoded.
*/
CONTROL("CONTROL")
{
@Override
public boolean canChangeTo(State state)
{
return state == IDLE || state == FADE;
return state == IDLE ||
state == FADE;
}
},
/**
* Indicates data packets are being decoded
*/
DATA("DATA")
{
@Override
public boolean canChangeTo(State state)
{
return state == ACTIVE ||
state == CALL ||
state == CONTROL ||
state == ENCRYPTED ||
state == FADE ||
state == TEARDOWN;
}
},
/**
* Indicates encrypted audio is detected.
*/
ENCRYPTED("ENCRYPTED")
{
@Override
public boolean canChangeTo(State state)
{
return state == FADE ||
state == TEARDOWN;
}
},
/**
* Fade state occurs when the channel is no longer actively decoding an messages. This is a transitory
* state before transition to IDLE or back to an active state.
*/
FADE("FADE")
{
@Override
public boolean canChangeTo(State state)
{
return state != FADE && state != RESET && state != OVERFLOW;
return state != FADE &&
state != RESET &&
state != OVERFLOW;
}
},
/**
* Indicates the channel is idle and not actively decoding any messages
*/
IDLE("IDLE")
{
@Override
public boolean canChangeTo(State state)
{
return state != TEARDOWN &&
state != RESET &&
state != OVERFLOW;
}
},
/**
* Indicates that the channel's sample buffer has overflowed and new buffer samples are no longer being
* delivered to the channel. This state persists until the processing catches up and reduces the number
* of samples in the input buffer below a threshold value. Transition to and from this state is exclusively
* managed by the Channel State and no other channel states can be processed from the channel decoders
* until the channel state is taken out of overflow.
*/
OVERFLOW("OVERFLOW")
{
@Override
@@ -80,6 +140,9 @@ public enum State
return false;
}
},
/**
* Indicates that the channel has been reset and is ready to use for a new decoding session.
*/
RESET("RESET")
{
@Override
@@ -88,6 +151,10 @@ public enum State
return state == IDLE;
}
},
/**
* Call or data teardown. This state is used by traffic channels to indicate that a call or data session
* has concluded and the channel is ready for tear down and reuse.
*/
TEARDOWN("TEARDOWN")
{
@Override
@@ -99,7 +166,7 @@ public enum State
private String mDisplayValue;
public static final EnumSet<State> CALL_STATES = EnumSet.of(CALL, CONTROL, DATA, ENCRYPTED);
public static final EnumSet<State> CALL_STATES = EnumSet.of(ACTIVE, CALL, CONTROL, DATA, ENCRYPTED);
public static final EnumSet<State> IDLE_STATES = EnumSet.of(IDLE, FADE);
private State(String displayValue)