add support for ENSO beacons

README.md

@@ -609,6 +609,11 @@ jradio has lots of built-in satellite decoders. Some of them have non standard d
 			<td>60246</td>
 			<td>ru.r2cloud.jradio.catsat.CatsatBeacon</td>
 		</tr>
+		<tr>
+			<td>ENSO</td>
+			<td>58470</td>
+			<td>ru.r2cloud.jradio.enso.EnsoBeacon</td>
+		</tr>
 	</tbody>
 </table>
 

src/main/java/ru/r2cloud/jradio/enso/EnsoBeacon.java

@@ -0,0 +1,106 @@
+package ru.r2cloud.jradio.enso;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+
+import ru.r2cloud.jradio.ax25.Ax25Beacon;
+import ru.r2cloud.jradio.fec.ccsds.UncorrectableException;
+import ru.r2cloud.jradio.util.LittleEndianDataInputStream;
+
+public class EnsoBeacon extends Ax25Beacon {
+
+	private int size;
+	private int frameType;
+	private long ts;
+	private Obdh obdh;
+	private Eps eps;
+	private Ttc ttc;
+	private byte[] customPayload;
+	private String tweet;
+
+	@Override
+	public void readBeacon(DataInputStream dis) throws IOException, UncorrectableException {
+		size = dis.readUnsignedByte();
+		frameType = dis.readUnsignedByte();
+		LittleEndianDataInputStream ldis = new LittleEndianDataInputStream(dis);
+		ts = ldis.readUnsignedInt();
+		obdh = new Obdh(ldis);
+		eps = new Eps(ldis);
+		ttc = new Ttc(ldis);
+		customPayload = new byte[48];
+		dis.readFully(customPayload);
+		if (dis.available() > 0) {
+			byte[] tweetBytes = new byte[dis.available()];
+			tweet = new String(tweetBytes, StandardCharsets.US_ASCII).trim();
+			if (tweet.length() == 0) {
+				tweet = null;
+			}
+		}
+	}
+
+	public int getSize() {
+		return size;
+	}
+
+	public void setSize(int size) {
+		this.size = size;
+	}
+
+	public int getFrameType() {
+		return frameType;
+	}
+
+	public void setFrameType(int frameType) {
+		this.frameType = frameType;
+	}
+
+	public long getTs() {
+		return ts;
+	}
+
+	public void setTs(long ts) {
+		this.ts = ts;
+	}
+
+	public Obdh getObdh() {
+		return obdh;
+	}
+
+	public void setObdh(Obdh obdh) {
+		this.obdh = obdh;
+	}
+
+	public Eps getEps() {
+		return eps;
+	}
+
+	public void setEps(Eps eps) {
+		this.eps = eps;
+	}
+
+	public Ttc getTtc() {
+		return ttc;
+	}
+
+	public void setTtc(Ttc ttc) {
+		this.ttc = ttc;
+	}
+
+	public byte[] getCustomPayload() {
+		return customPayload;
+	}
+
+	public void setCustomPayload(byte[] customPayload) {
+		this.customPayload = customPayload;
+	}
+
+	public String getTweet() {
+		return tweet;
+	}
+
+	public void setTweet(String tweet) {
+		this.tweet = tweet;
+	}
+
+}