ATV Modulator: implememted horizontal sync leap standard with very slow 60 and 32 lines modes

plugins/channeltx/modatv/atvmod.cpp

@@ -288,6 +288,10 @@ void ATVMod::pullVideo(Real& sample)
             pullImageLine(sample);
         }
     }
+    else if (m_running.m_atvStd == ATVStdHLeap) // HLeap special
+    {
+        pullImageLine(sample, true); // pull image line without sync
+    }
     else // odd image
     {
         int iLine = m_lineCount - m_nbLines2 - 1;
@@ -825,8 +829,22 @@ void ATVMod::applyStandard()
 
     switch(m_config.m_atvStd)
     {
-    case ATVStdShort: // Follows loosely the 405 lines standard
+    case ATVStdHLeap:
-        // what is left in a 64 us line for the image
+        m_nbImageLines     = m_nbLines; // lines less the total number of sync lines
+        m_nbImageLines2    = m_nbImageLines; // force non interleaved for vbars
+        m_interleaved       = false;
+        m_nbSyncLinesHeadE = 0; // number of sync lines on the top of a frame even
+        m_nbSyncLinesHeadO = 0; // number of sync lines on the top of a frame odd
+        m_nbSyncLinesBottom = -1; // force no vsync in even block
+        m_nbLongSyncLines  = 0;
+        m_nbHalfLongSync   = 0;
+        m_nbWholeEqLines   = 0;
+        m_singleLongSync   = true;
+        m_nbBlankLines     = 0;
+        m_blankLineLvel    = 0.7f;
+        m_nbLines2         = m_nbLines - 2; // force last line to slip from the even block
+        break;
+    case ATVStdShort:
         m_nbImageLines     = m_nbLines - 2; // lines less the total number of sync lines
         m_nbImageLines2    = m_nbImageLines; // force non interleaved for vbars
         m_interleaved       = false;
@@ -841,8 +859,7 @@ void ATVMod::applyStandard()
         m_blankLineLvel    = 0.7f;
         m_nbLines2         = m_nbLines; // force non interleaved => treated as even for all lines
         break;
-    case ATVStdShortInterleaved: // Follows loosely the 405 lines standard
+    case ATVStdShortInterleaved:
-        // what is left in a 64 us line for the image
         m_nbImageLines     = m_nbLines - 2; // lines less the total number of sync lines
         m_nbImageLines2    = m_nbImageLines / 2;
         m_interleaved       = true;
@@ -857,7 +874,6 @@ void ATVMod::applyStandard()
         m_blankLineLvel    = 0.7f;
         break;
     case ATVStd405: // Follows loosely the 405 lines standard
-        // what is left in a 64 us line for the image
         m_nbImageLines     = m_nbLines - 15; // lines less the total number of sync lines
         m_nbImageLines2    = m_nbImageLines / 2;
         m_interleaved       = true;
@@ -872,7 +888,6 @@ void ATVMod::applyStandard()
         m_blankLineLvel    = m_blackLevel;
         break;
     case ATVStdPAL525: // Follows PAL-M standard
-        // what is left in a 64/1.008 us line for the image
         m_nbImageLines     = m_nbLines - 15;
         m_nbImageLines2    = m_nbImageLines / 2;
         m_interleaved       = true;
@@ -888,7 +903,6 @@ void ATVMod::applyStandard()
         break;
     case ATVStdPAL625: // Follows PAL-B/G/H standard
     default:
-        // what is left in a 64 us line for the image
         m_nbImageLines     = m_nbLines - 15;
         m_nbImageLines2    = m_nbImageLines / 2;
         m_interleaved       = true;

plugins/channeltx/modatv/atvmod.h

@@ -45,6 +45,7 @@ public:
 		ATVStd405,
 		ATVStdShortInterleaved,
 		ATVStdShort,
+		ATVStdHLeap,
     } ATVStd;
 
     typedef enum
@@ -721,11 +722,11 @@ private:
     void resizeCamera();
     void mixImageAndText(cv::Mat& image);
 
-    inline void pullImageLine(Real& sample)
+    inline void pullImageLine(Real& sample, bool noHSync = false)
     {
         if (m_horizontalCount < m_pointsPerSync) // sync pulse
         {
-            sample = 0.0f; // ultra-black
+            sample = noHSync ? m_blackLevel : 0.0f; // ultra-black
         }
         else if (m_horizontalCount < m_pointsPerSync + m_pointsPerBP) // back porch
         {

plugins/channeltx/modatv/atvmodgui.cpp

@@ -288,6 +288,12 @@ int ATVModGUI::getNbLines()
     case 6:
         return 90;
         break;
+    case 7:
+        return 60;
+        break;
+    case 8:
+        return 32;
+        break;
     case 0:
     default:
         return 625;

plugins/channeltx/modatv/atvmodgui.ui

@@ -574,6 +574,16 @@
           <string>90</string>
          </property>
         </item>
+        <item>
+         <property name="text">
+          <string>60</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>32</string>
+         </property>
+        </item>
        </widget>
       </item>
       <item>
@@ -656,7 +666,7 @@
         </item>
         <item>
          <property name="text">
-          <string>405L</string>
+          <string>PAL405</string>
          </property>
         </item>
         <item>
@@ -669,6 +679,11 @@
           <string>SHni</string>
          </property>
         </item>
+        <item>
+         <property name="text">
+          <string>HLeap</string>
+         </property>
+        </item>
        </widget>
       </item>
       <item>