diff --git a/trunk/src/rtmp/srs_protocol_amf0.cpp b/trunk/src/rtmp/srs_protocol_amf0.cpp
index 31941f8fb..9fd208ad2 100644
--- a/trunk/src/rtmp/srs_protocol_amf0.cpp
+++ b/trunk/src/rtmp/srs_protocol_amf0.cpp
@@ -105,12 +105,18 @@ bool SrsAmf0Any::is_ecma_array()
 	return marker == RTMP_AMF0_EcmaArray;
 }
 
-std::string SrsAmf0Any::to_str()
+string SrsAmf0Any::to_str()
 {
 	__SrsAmf0String* o = srs_amf0_convert<__SrsAmf0String>(this);
 	return o->value;
 }
 
+bool SrsAmf0Any::to_boolean()
+{
+	__SrsAmf0Boolean* o = srs_amf0_convert<__SrsAmf0Boolean>(this);
+	return o->value;
+}
+
 bool SrsAmf0Any::is_object_eof()
 {
 	return marker == RTMP_AMF0_ObjectEnd;
@@ -121,36 +127,9 @@ SrsAmf0Any* SrsAmf0Any::str(const char* value)
 	return new __SrsAmf0String(value);
 }
 
-__SrsAmf0String::__SrsAmf0String(const char* _value)
-{
-	marker = RTMP_AMF0_String;
-	if (_value) {
-		value = _value;
-	}
-}
-
-__SrsAmf0String::~__SrsAmf0String()
-{
-}
-
-int __SrsAmf0String::size()
-{
-	return SrsAmf0Size::str(value);
-}
-
-SrsAmf0Boolean::SrsAmf0Boolean(bool _value)
+SrsAmf0Any* SrsAmf0Any::boolean(bool value)
 {
-	marker = RTMP_AMF0_Boolean;
-	value = _value;
-}
-
-SrsAmf0Boolean::~SrsAmf0Boolean()
-{
-}
-
-int SrsAmf0Boolean::size()
-{
-	return SrsAmf0Size::boolean();
+	return new __SrsAmf0Boolean(value);
 }
 
 SrsAmf0Number::SrsAmf0Number(double _value)
@@ -698,6 +677,38 @@ int SrsAmf0Size::any(SrsAmf0Any* o)
 	return o->size();
 }
 
+__SrsAmf0String::__SrsAmf0String(const char* _value)
+{
+	marker = RTMP_AMF0_String;
+	if (_value) {
+		value = _value;
+	}
+}
+
+__SrsAmf0String::~__SrsAmf0String()
+{
+}
+
+int __SrsAmf0String::size()
+{
+	return SrsAmf0Size::str(value);
+}
+
+__SrsAmf0Boolean::__SrsAmf0Boolean(bool _value)
+{
+	marker = RTMP_AMF0_Boolean;
+	value = _value;
+}
+
+__SrsAmf0Boolean::~__SrsAmf0Boolean()
+{
+}
+
+int __SrsAmf0Boolean::size()
+{
+	return SrsAmf0Size::boolean();
+}
+
 int srs_amf0_read_utf8(SrsStream* stream, std::string& value)
 {
 	int ret = ERROR_SUCCESS;
@@ -1046,8 +1057,7 @@ int srs_amf0_read_any(SrsStream* stream, SrsAmf0Any*& value)
 			if ((ret = srs_amf0_read_string(stream, data)) != ERROR_SUCCESS) {
 				return ret;
 			}
-			value = SrsAmf0Any::str();
-			srs_amf0_convert<__SrsAmf0String>(value)->value = data;
+			value = SrsAmf0Any::str(data.c_str());
 			return ret;
 		}
 		case RTMP_AMF0_Boolean: {
@@ -1055,8 +1065,7 @@ int srs_amf0_read_any(SrsStream* stream, SrsAmf0Any*& value)
 			if ((ret = srs_amf0_read_boolean(stream, data)) != ERROR_SUCCESS) {
 				return ret;
 			}
-			value = new SrsAmf0Boolean();
-			srs_amf0_convert<SrsAmf0Boolean>(value)->value = data;
+			value = SrsAmf0Any::boolean(data);
 			return ret;
 		}
 		case RTMP_AMF0_Number: {
@@ -1124,7 +1133,7 @@ int srs_amf0_write_any(SrsStream* stream, SrsAmf0Any* value)
 			return srs_amf0_write_string(stream, data);
 		}
 		case RTMP_AMF0_Boolean: {
-			bool data = srs_amf0_convert<SrsAmf0Boolean>(value)->value;
+			bool data = srs_amf0_convert<__SrsAmf0Boolean>(value)->value;
 			return srs_amf0_write_boolean(stream, data);
 		}
 		case RTMP_AMF0_Number: {
diff --git a/trunk/src/rtmp/srs_protocol_amf0.hpp b/trunk/src/rtmp/srs_protocol_amf0.hpp
index 06cceb4c3..79dbc337b 100644
--- a/trunk/src/rtmp/srs_protocol_amf0.hpp
+++ b/trunk/src/rtmp/srs_protocol_amf0.hpp
@@ -65,46 +65,16 @@ public:
 	* user must ensure the type is a string, or assert failed.
 	*/
 	virtual std::string to_str();
+	/**
+	* get the boolean of any when is_boolean() indicates true.
+	* user must ensure the type is a is_boolean, or assert failed.
+	*/
+	virtual bool to_boolean();
 public:
 	virtual int size() = 0;
 public:
 	static SrsAmf0Any* str(const char* value = NULL); 
-};
-
-/**
-* read amf0 string from stream.
-* 2.4 String Type
-* string-type = string-marker UTF-8
-* @return default value is empty string.
-* @remark: use SrsAmf0Any::str() to create it.
-*/
-class __SrsAmf0String : public SrsAmf0Any
-{
-public:
-	std::string value;
-
-	__SrsAmf0String(const char* _value);
-	virtual ~__SrsAmf0String();
-	
-	virtual int size();
-};
-
-/**
-* read amf0 boolean from stream.
-* 2.4 String Type
-* boolean-type = boolean-marker U8
-* 		0 is false, <> 0 is true
-* @return default value is false.
-*/
-class SrsAmf0Boolean : public SrsAmf0Any
-{
-public:
-	bool value;
-
-	SrsAmf0Boolean(bool _value = false);
-	virtual ~SrsAmf0Boolean();
-	
-	virtual int size();
+	static SrsAmf0Any* boolean(bool value = false); 
 };
 
 /**
@@ -270,6 +240,42 @@ public:
 	static int any(SrsAmf0Any* o);
 };
 
+/**
+* read amf0 string from stream.
+* 2.4 String Type
+* string-type = string-marker UTF-8
+* @return default value is empty string.
+* @remark: use SrsAmf0Any::str() to create it.
+*/
+class __SrsAmf0String : public SrsAmf0Any
+{
+public:
+	std::string value;
+
+	__SrsAmf0String(const char* _value);
+	virtual ~__SrsAmf0String();
+	
+	virtual int size();
+};
+
+/**
+* read amf0 boolean from stream.
+* 2.4 String Type
+* boolean-type = boolean-marker U8
+* 		0 is false, <> 0 is true
+* @return default value is false.
+*/
+class __SrsAmf0Boolean : public SrsAmf0Any
+{
+public:
+	bool value;
+
+	__SrsAmf0Boolean(bool _value);
+	virtual ~__SrsAmf0Boolean();
+	
+	virtual int size();
+};
+
 /**
 * read amf0 utf8 string from stream.
 * 1.3.1 Strings and UTF-8
diff --git a/trunk/src/rtmp/srs_protocol_rtmp.cpp b/trunk/src/rtmp/srs_protocol_rtmp.cpp
index aad6013b0..1f0e2c8ba 100644
--- a/trunk/src/rtmp/srs_protocol_rtmp.cpp
+++ b/trunk/src/rtmp/srs_protocol_rtmp.cpp
@@ -283,7 +283,7 @@ int SrsRtmpClient::connect_app(string app, string tc_url)
 		pkt->command_object->set("app", SrsAmf0Any::str(app.c_str()));
 		pkt->command_object->set("swfUrl", SrsAmf0Any::str());
 		pkt->command_object->set("tcUrl", SrsAmf0Any::str(tc_url.c_str()));
-		pkt->command_object->set("fpad", new SrsAmf0Boolean(false));
+		pkt->command_object->set("fpad", SrsAmf0Any::boolean(false));
 		pkt->command_object->set("capabilities", new SrsAmf0Number(239));
 		pkt->command_object->set("audioCodecs", new SrsAmf0Number(3575));
 		pkt->command_object->set("videoCodecs", new SrsAmf0Number(252));
diff --git a/trunk/src/rtmp/srs_protocol_rtmp_stack.cpp b/trunk/src/rtmp/srs_protocol_rtmp_stack.cpp
index 7cd0d0dfb..ffd63d57b 100644
--- a/trunk/src/rtmp/srs_protocol_rtmp_stack.cpp
+++ b/trunk/src/rtmp/srs_protocol_rtmp_stack.cpp
@@ -2628,7 +2628,7 @@ int SrsPlayPacket::decode(SrsStream* stream)
     // An optional Boolean value or number that specifies whether
     // to flush any previous playlist
     if (reset_value->is_boolean()) {
-        reset = srs_amf0_convert<SrsAmf0Boolean>(reset_value)->value;
+        reset = reset_value->to_boolean();
     } else if (reset_value->is_number()) {
         reset = (srs_amf0_convert<SrsAmf0Number>(reset_value)->value == 0 ? false : true);
     } else {
diff --git a/trunk/src/utest/srs_utest_amf0.cpp b/trunk/src/utest/srs_utest_amf0.cpp
index 9df0db4be..14852ed83 100644
--- a/trunk/src/utest/srs_utest_amf0.cpp
+++ b/trunk/src/utest/srs_utest_amf0.cpp
@@ -90,7 +90,7 @@ VOID TEST(AMF0Test, Size)
         SrsAmf0Object o;
         
         size += SrsAmf0Size::utf8("sex")+SrsAmf0Size::boolean();
-        o.set("sex", new SrsAmf0Boolean(true));
+        o.set("sex", SrsAmf0Any::boolean(true));
         
         EXPECT_EQ(size, SrsAmf0Size::object(&o));
     }
@@ -144,7 +144,7 @@ VOID TEST(AMF0Test, Size)
         SrsAmf0EcmaArray o;
         
         size += SrsAmf0Size::utf8("sex")+SrsAmf0Size::boolean();
-        o.set("sex", new SrsAmf0Boolean(true));
+        o.set("sex", SrsAmf0Any::boolean(true));
         
         EXPECT_EQ(size, SrsAmf0Size::array(&o));
     }
@@ -281,4 +281,27 @@ VOID TEST(AMF0Test, AnyElem)
 		EXPECT_TRUE(o->is_string());
 		EXPECT_STREQ("winlin", o->to_str().c_str());
 	}
+	
+	// bool
+	if (true) {
+		o = SrsAmf0Any::boolean();
+		SrsAutoFree(SrsAmf0Any, o, false);
+		EXPECT_TRUE(NULL != o);
+		EXPECT_TRUE(o->is_boolean());
+		EXPECT_FALSE(o->to_boolean());
+	}
+	if (true) {
+		o = SrsAmf0Any::boolean(false);
+		SrsAutoFree(SrsAmf0Any, o, false);
+		EXPECT_TRUE(NULL != o);
+		EXPECT_TRUE(o->is_boolean());
+		EXPECT_FALSE(o->to_boolean());
+	}
+	if (true) {
+		o = SrsAmf0Any::boolean(true);
+		SrsAutoFree(SrsAmf0Any, o, false);
+		EXPECT_TRUE(NULL != o);
+		EXPECT_TRUE(o->is_boolean());
+		EXPECT_TRUE(o->to_boolean());
+	}
 }