sync decim improvements (auto-switch to COPY mode)

apps/fft-multi-decoder_fixed_hackrf.grc

@@ -2516,7 +2516,7 @@ class blk(gr.sync_block):  # other base classes are basic_block, decim_block, in
     </param>
     <param>
       <key>log</key>
-      <value>True</value>
+      <value>False</value>
     </param>
     <param>
       <key>loop_bw</key>
@@ -2851,7 +2851,7 @@ class blk(gr.sync_block):  # other base classes are basic_block, decim_block, in
     </param>
     <param>
       <key>log</key>
-      <value>False</value>
+      <value>True</value>
     </param>
     <param>
       <key>loop_bw</key>
@@ -3052,7 +3052,7 @@ class blk(gr.sync_block):  # other base classes are basic_block, decim_block, in
     </param>
     <param>
       <key>log</key>
-      <value>False</value>
+      <value>True</value>
     </param>
     <param>
       <key>loop_bw</key>

apps/ifft-RDS-decoder_hier-block.grc

@@ -2402,7 +2402,7 @@
     </param>
     <param>
       <key>log</key>
-      <value>log</value>
+      <value>True</value>
     </param>
     <param>
       <key>maxoutbuf</key>

lib/sync_decim_impl.cc

@@ -76,14 +76,14 @@ namespace gr {
           pmt::pmt_t meta = pmt::car(pdu);  // meta declares type 0:RDS, 1:sync/nosync
           pmt::pmt_t sync = pmt::cdr(pdu);
           if(1L==pmt::to_long(meta) && pmt::eqv(sync,pmt::PMT_F)){
-            if (mode != COPY){
+            /*if (mode != COPY){
               pmt::pmt_t meta(pmt::from_long(4));
               pmt::pmt_t data(pmt::from_long(COPY));
               pmt::pmt_t pdu(pmt::cons(meta, data));  // make PDU: (metadata, data) pair
               message_port_pub(pmt::mp("ctrl"), pdu);
               lout<< "switched to copy"<<std::endl;
               }
-            mode=COPY;
+            mode=COPY;*/
 
           }
         }
@@ -100,6 +100,14 @@ namespace gr {
           if(outbit_counter>2000){//2000 ^= ~every 2 seconds
             lout<<"mode: "<<mode<<"\t";
             lout<<"weakout_counter:"<<weakout_counter<<std::endl;
+            if(weakout_counter>1000){//switch to copy and resync if outputs low
+              mode=COPY;
+              pmt::pmt_t meta(pmt::from_long(4));
+              pmt::pmt_t data(pmt::from_long(COPY));
+              pmt::pmt_t pdu(pmt::cons(meta, data));  // make PDU: (metadata, data) pair
+              message_port_pub(pmt::mp("ctrl"), pdu);
+              lout<< "switched to copy"<<std::endl;
+            }
             outbit_counter=0;
             weakout_counter=0;
           }