properties: display nan values as N/A

Clement Champetier · Clement Champetier · commit 914bce1b879c · 2016-02-29T17:43:48.000+01:00
Same behavior as ffprobe.
diff --git a/src/AvTranscoder/properties/util.cpp b/src/AvTranscoder/properties/util.cpp
@@ -1,5 +1,9 @@
 #include "util.hpp"
 
+extern "C" {
+#include <libavutil/avutil.h>
+}
+
 #include <sstream>
 
 namespace avtranscoder
@@ -8,6 +12,28 @@ namespace avtranscoder
 namespace detail
 {
 
+template <>
+void add(PropertyVector& propertyVector, const std::string& key, const size_t& value)
+{
+    std::stringstream ss;
+    if(value == (size_t)AV_NOPTS_VALUE)
+        ss << "N/A";
+    else
+        ss << value;
+    add(propertyVector, key, ss.str());
+}
+
+template <>
+void add(PropertyVector& propertyVector, const std::string& key, const float& value)
+{
+    std::stringstream ss;
+    if(value <= AV_NOPTS_VALUE || value >= AV_NOPTS_VALUE)
+        ss << "N/A";
+    else
+        ss << value;
+    add(propertyVector, key, ss.str());
+}
+
 template <>
 void add(PropertyVector& propertyVector, const std::string& key, const std::string& value)
 {
diff --git a/src/AvTranscoder/properties/util.hpp b/src/AvTranscoder/properties/util.hpp
@@ -45,6 +45,12 @@ void add(PropertyVector& propertyVector, const std::string& key, const T& value)
     add(propertyVector, key, ss.str());
 }
 
+template <>
+void add(PropertyVector& propertyVector, const std::string& key, const size_t& value);
+
+template <>
+void add(PropertyVector& propertyVector, const std::string& key, const float& value);
+
 template <>
 void add(PropertyVector& propertyVector, const std::string& key, const std::string& value);
 
