整理代码

video/core/SerialCode.h

@@ -0,0 +1,77 @@
+#ifndef F54A2617_3BA7_4779_88A5_AB040FD9B002
+#define F54A2617_3BA7_4779_88A5_AB040FD9B002
+/*
+ *******************************************************************************
+ *                                   INCLUDE
+ *******************************************************************************
+ */
+#include "CodecID.h"
+#include <Poco/Nullable.h>
+#include <Poco/Any.h>
+#include <map>
+
+namespace Video
+{
+namespace Core
+{
+/*
+ *******************************************************************************
+ *                                CLASS DECLARE
+ *******************************************************************************
+ */
+class SerialCode
+{
+public:
+    bool              empty() const;
+    void              reset();
+    const SerialCode& operator++();
+    const SerialCode& operator++(int);
+    bool              operator!=(const SerialCode& other);
+    const SerialCode& operator=(const SerialCode& other);
+    const SerialCode& operator=(const uint32_t other);
+
+private:
+    Poco::Nullable<uint32_t> _value;
+};
+
+class SerialCodeManager
+{
+public:
+    SerialCodeManager();
+
+    template <class T> void put(const std::string& name, const T& value);
+    void                    increment();
+
+    const SerialCode& code() const;
+
+private:
+    SerialCode                       _code;
+    std::map<std::string, Poco::Any> _values;
+};
+
+template <class T> inline void SerialCodeManager::put(const std::string& name, const T& value)
+{
+    if (_values.find(name) == _values.end() || Poco::AnyCast<T>(_values[name]) != value)
+    {
+        _values[name] = value;
+        _code++;
+    }
+}
+
+inline const SerialCode& SerialCodeManager::code() const
+{
+    return _code;
+}
+
+class SerialCodeWatcher
+{
+public:
+    bool isChanged(const SerialCode& code, bool firstAsChanged = false);
+    void reset();
+
+private:
+    SerialCode _code;
+};
+}
+}
+#endif