Add higher framerates to list of valid options

Author: RikerG

src/opentime/rationalTime.cpp

@@ -33,6 +33,18 @@ static constexpr std::array<double, 11> smpte_timecode_rates{
       50.0,
       60000.0 / 1001.0,
       60.0
+      72.0
+      72000.0 / 1001.0,
+      96.0
+      96000.0 / 1001.0,
+      120.0
+      120000.0 / 1001.0,
+      144.0
+      144000.0 / 1001.0,
+      192.0
+      192000.0 / 1001.0,
+      240.0
+      240000.0 / 1001.0,
     }
 };
 
@@ -458,7 +470,8 @@ RationalTime::to_timecode(
     // so as a convenience we will snap the rate to the nearest
     // SMPTE rate if it is close enough.
     double nearest_smpte_rate = nearest_smpte_timecode_rate(rate);
-    if (abs(nearest_smpte_rate - rate) > 0.1)
+    double error_margin = nearest_smpte_rate * 0.002
+    if (abs(nearest_smpte_rate - rate) > error_margin)
     {
         if (error_status)
         {