Add TII configuration to ini file

5 files changed, 30 insertions, 9 deletions

diff --git a/doc/example.ini b/doc/example.ini
index 317d652..d99a966 100644
--- a/doc/example.ini
+++ b/doc/example.ini
@@ -229,3 +229,9 @@ offset=0.002
 ; The previous static vs dynamic offset distinction, and reading the
 ; modulatoroffset from a file has been removed.
 
+[tii]
+; (experimental)
+; If these options are set, TII transmission is enabled.
+comb = 16
+pattern = 3
+
diff --git a/src/DabMod.cpp b/src/DabMod.cpp
index 1fc7e3c..618e0fe 100644
--- a/src/DabMod.cpp
+++ b/src/DabMod.cpp
@@ -132,6 +132,8 @@ int launch_modulator(int argc, char* argv[])
     float normalise = 1.0f;
     GainMode gainMode = GAIN_VAR;
 
+    int tiiPattern = 0;
+    int tiiComb = 0;
 
     /* UHD requires the input I and Q samples to be in the interval
      * [-1.0,1.0], otherwise they get truncated, which creates very
@@ -578,6 +580,10 @@ int launch_modulator(int argc, char* argv[])
 
         outputuhd_conf.muteNoTimestamps = (pt.get("delaymanagement.mutenotimestamps", 0) == 1);
 #endif
+
+        /* Read TII parameters from config file */
+        tiiComb    = pt.get("tii.comb", 0);
+        tiiPattern = pt.get("tii.pattern", 0);
     }
 
     if (rcs.get_no_controllers() == 0) {
@@ -750,7 +756,7 @@ int launch_modulator(int argc, char* argv[])
         shared_ptr<DabModulator> modulator(
                 new DabModulator(tist_offset_s, tist_delay_stages, &rcs,
                     outputRate, clockRate, dabMode, gainMode, digitalgain,
-                    normalise, filterTapsFilename));
+                    normalise, filterTapsFilename, tiiComb, tiiPattern));
 
         flowgraph.connect(input, modulator);
         if (format_converter) {
diff --git a/src/DabModulator.cpp b/src/DabModulator.cpp
index 97c36da..dbc6827 100644
--- a/src/DabModulator.cpp
+++ b/src/DabModulator.cpp
@@ -61,7 +61,8 @@ DabModulator::DabModulator(
         unsigned outputRate, unsigned clockRate,
         unsigned dabMode, GainMode gainMode,
         float digGain, float normalise,
-        std::string filterTapsFilename
+        std::string filterTapsFilename,
+        int tiiComb, int tiiPattern
         ) :
     ModCodec(ModFormat(1), ModFormat(0)),
     myOutputRate(outputRate),
@@ -73,6 +74,8 @@ DabModulator::DabModulator(
     myEtiReader(EtiReader(tist_offset_s, tist_delay_stages, rcs)),
     myFlowgraph(NULL),
     myFilterTapsFilename(filterTapsFilename),
+    myTiiComb(tiiComb),
+    myTiiPattern(tiiPattern),
     myRCs(rcs)
 {
     PDEBUG("DabModulator::DabModulator(%u, %u, %u, %u) @ %p\n",
@@ -195,8 +198,10 @@ int DabModulator::process(Buffer* const dataIn, Buffer* dataOut)
                 (float)mySpacing * (float)myOutputRate / 2048000.0f,
                 cic_ratio));
 
-
-        shared_ptr<TII> tii(new TII(myDabMode, 3, 16));
+        shared_ptr<TII> tii;
+        if (myTiiComb != 0) {
+            tii = make_shared<TII>(myDabMode, myTiiPattern, myTiiComb);
+        }
 
         shared_ptr<OfdmGenerator> cifOfdm(
                 new OfdmGenerator((1 + myNbSymbols), myNbCarriers, mySpacing));
@@ -347,7 +352,10 @@ int DabModulator::process(Buffer* const dataIn, Buffer* dataOut)
         myFlowgraph->connect(cifFreq, cifDiff);
         myFlowgraph->connect(cifNull, cifSig);
         myFlowgraph->connect(cifDiff, cifSig);
-        myFlowgraph->connect(tii, cifSig);
+        if (tii) {
+            myFlowgraph->connect(tii, cifSig);
+        }
+
         if (useCicEq) {
             myFlowgraph->connect(cifSig, cifCicEq);
             myFlowgraph->connect(cifCicEq, cifOfdm);
diff --git a/src/DabModulator.h b/src/DabModulator.h
index 1a9e477..48cdd42 100644
--- a/src/DabModulator.h
+++ b/src/DabModulator.h
@@ -54,7 +54,8 @@ public:
             unsigned outputRate = 2048000, unsigned clockRate = 0,
             unsigned dabMode = 0, GainMode gainMode = GAIN_VAR,
             float digGain = 1.0, float normalise = 1.0,
-            std::string filterTapsFilename = "");
+            std::string filterTapsFilename = "",
+            int tiiComb = 0, int tiiPattern = 0);
     DabModulator(const DabModulator& copy);
     virtual ~DabModulator();
 
@@ -77,6 +78,8 @@ protected:
     Flowgraph* myFlowgraph;
     OutputMemory* myOutput;
     std::string myFilterTapsFilename;
+    int myTiiComb;
+    int myTiiPattern;
     RemoteControllers* myRCs;
 
     size_t myNbSymbols;
diff --git a/src/TII.cpp b/src/TII.cpp
index bafa343..5c85302 100644
--- a/src/TII.cpp
+++ b/src/TII.cpp
@@ -196,11 +196,9 @@ int TII::process(Buffer* const dataIn, Buffer* dataOut)
 }
 
 void TII::enable_carrier(int k) {
-    fprintf(stderr, "k = %d\n", k);
-
     int ix = m_carriers/2 + k;
 
-    if (ix < 0 or ix > (ssize_t)m_dataIn.size()) {
+    if (ix < 0 or ix+1 >= (ssize_t)m_dataIn.size()) {
         throw std::runtime_error(
                 "TII::enable_carrier invalid k!");
     }