SDRdaemonFEC plugin: use meta data CRC32 and promote to version 2.1.0 again

plugins/samplesource/sdrdaemonfec/sdrdaemonfecbuffer.cpp

@@ -19,6 +19,9 @@
 #include <cstring>
 #include <cmath>
 #include <lz4.h>
+#include <boost/crc.hpp>
+#include <boost/cstdint.hpp>
+
 #include "sdrdaemonfecbuffer.h"
 
 
@@ -282,8 +285,20 @@ void SDRdaemonFECBuffer::writeData(char *array, uint32_t length)
 
                     if (blockIndex == 0) // first block with meta
                     {
-                        printMeta("SDRdaemonFECBuffer::writeData: recovered meta", (MetaDataFEC *) recoveredBlock);
-//                        m_decoderSlots[decoderIndex].m_metaRetrieved = true;
+                        MetaDataFEC *metaData = (MetaDataFEC *) recoveredBlock;
+
+                        boost::crc_32_type crc32;
+                        crc32.process_bytes(metaData, 20);
+
+                        if (crc32.checksum() == metaData->m_crc32)
+                        {
+                            m_decoderSlots[decoderIndex].m_metaRetrieved = true;
+                            printMeta("SDRdaemonFECBuffer::writeData: recovered meta", metaData);
+                        }
+                        else
+                        {
+                            qDebug() << "SDRdaemonFECBuffer::writeData: recovered meta: invalid CRC32";
+                        }
                     }
 
                     m_decoderSlots[decoderIndex].m_originalBlocks[blockIndex] = *recoveredBlock;

plugins/samplesource/sdrdaemonfec/sdrdaemonfecbuffer.h

@@ -42,6 +42,7 @@ public:
         uint8_t  m_nbFECBlocks;       //!< 12 number of blocks carrying FEC
         uint32_t m_tv_sec;            //!< 16 seconds of timestamp at start time of super-frame processing
         uint32_t m_tv_usec;           //!< 20 microseconds of timestamp at start time of super-frame processing
+        uint32_t m_crc32;             //!< 24 CRC32 of the above
 
         bool operator==(const MetaDataFEC& rhs)
         {

plugins/samplesource/sdrdaemonfec/sdrdaemonfecplugin.cpp

@@ -26,7 +26,7 @@
 
 const PluginDescriptor SDRdaemonFECPlugin::m_pluginDescriptor = {
 	QString("SDRdaemon with FEC input"),
-	QString("2.0.2"),
+	QString("2.1.0"),
 	QString("(c) Edouard Griffiths, F4EXB"),
 	QString("https://github.com/f4exb/sdrangel"),
 	true,