Implement a hash function to calculate FIG 0/7 Count field

This might not be strictly standards compliant, but it avoids having to save state
across mux restarts and doesn't place the burden of incrementing the number on the
operator.

1 files changed, 16 insertions, 1 deletions

diff --git a/src/ConfigParser.cpp b/src/ConfigParser.cpp
index 8da05ef..4240add 100644
--- a/src/ConfigParser.cpp
+++ b/src/ConfigParser.cpp
@@ -420,7 +420,22 @@ static void parse_general(ptree& pt,
     }
 
     ensemble->international_table = pt_ensemble.get("international-table", ensemble->international_table);
-    ensemble->reconfig_counter = pt_ensemble.get("reconfig-counter", ensemble->reconfig_counter);
+
+    bool reconfig_counter_is_hash = false;
+    try {
+        if (pt_ensemble.get<string>("reconfig-counter") == "hash") {
+            reconfig_counter_is_hash = true;
+        }
+    }
+    catch (const ptree_error &e) {
+    }
+
+    if (reconfig_counter_is_hash) {
+        ensemble->reconfig_counter = -2;
+    }
+    else {
+        ensemble->reconfig_counter = pt_ensemble.get("reconfig-counter", ensemble->reconfig_counter);
+    }
 
     string lto_auto = pt_ensemble.get("local-time-offset", "");
     if (lto_auto == "auto") {