diff --git a/README.md b/README.md
index 4f116f098..7761130e7 100755
--- a/README.md
+++ b/README.md
@@ -25,4 +25,16 @@ Compare:<br/>
 * nginx-rtmp v1.0.4: 26786 lines <br/>
 * nginx v1.5.0: 139524 lines <br/>
 
+Features:<br/>
+* v0.2, 2013-10-25, support h264/avc codec by rtmp complex handshake(SrsComplexHandshake).
+* v0.2, 2013-10-24, support time jitter detect and correct algorithm(SrsConsumer::jitter_correct).
+* v0.2, 2013-10-24, support decode the video/audio codec type(SrsCodec), cache the h264/avc sequence header.
+* v0.1, 2013-10-23, support basic amf0 codec, simplify the api using c-style api.
+* v0.1, 2013-10-23, support shared ptr msg(SrsSharedPtrMessage) for zero memory copy.
+* v0.1, 2013-10-22, support vp6 codec with rtmp protocol specified simple handshake.
+* v0.1, 2013-10-20, support multiple flash client play live streaming.
+* v0.1, 2013-10-20, support FMLE/FFMPEG publish live streaming.
+* v0.1, 2013-10-18, support rtmp message2chunk protocol(send message).
+* v0.1, 2013-10-17, support rtmp chunk2message protocol(recv message).
+
 Winlin
diff --git a/trunk/configure b/trunk/configure
index d2512f1a0..2adacea34 100755
--- a/trunk/configure
+++ b/trunk/configure
@@ -86,7 +86,8 @@ MODULE_FILES=("srs_core" "srs_core_log" "srs_core_server"
         "srs_core_error" "srs_core_conn" "srs_core_client" 
         "srs_core_rtmp" "srs_core_socket" "srs_core_buffer"
         "srs_core_auto_free" "srs_core_protocol" "srs_core_amf0"
-        "srs_core_stream" "srs_core_source" "srs_core_codec")
+        "srs_core_stream" "srs_core_source" "srs_core_codec"
+        "srs_core_complex_handshake")
 MODULE_DIR="src/core" . auto/modules.sh
 CORE_OBJS="${MODULE_OBJS[@]}"
 
diff --git a/trunk/src/core/srs_core_complex_handshake.cpp b/trunk/src/core/srs_core_complex_handshake.cpp
new file mode 100755
index 000000000..3594c8d8b
--- /dev/null
+++ b/trunk/src/core/srs_core_complex_handshake.cpp
@@ -0,0 +1,41 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2013 winlin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include <srs_core_complex_handshake.hpp>
+
+#include <srs_core_error.hpp>
+
+SrsComplexHandshake::SrsComplexHandshake()
+{
+}
+
+SrsComplexHandshake::~SrsComplexHandshake()
+{
+}
+
+int SrsComplexHandshake::handshake(SrsSocket& skt, char* c1)
+{
+	int ret = ERROR_SUCCESS;
+	return ret;
+}
+
diff --git a/trunk/src/core/srs_core_complex_handshake.hpp b/trunk/src/core/srs_core_complex_handshake.hpp
new file mode 100755
index 000000000..20775cf09
--- /dev/null
+++ b/trunk/src/core/srs_core_complex_handshake.hpp
@@ -0,0 +1,58 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2013 winlin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#ifndef SRS_CORE_COMPLEX_HANDSHKAE_HPP
+#define SRS_CORE_COMPLEX_HANDSHKAE_HPP
+
+/*
+#include <srs_core_complex_handshake.hpp>
+*/
+
+#include <srs_core.hpp>
+
+class SrsSocket;
+
+/**
+* rtmp complex handshake,
+* @see also crtmp(crtmpserver) or librtmp,
+* @see also: http://blog.csdn.net/win_lin/article/details/13006803
+*/
+class SrsComplexHandshake
+{
+public:
+	SrsComplexHandshake();
+	virtual ~SrsComplexHandshake();
+public:
+	/**
+	* complex hanshake.
+	* @c1, size of c1 must be 1536.
+	* @remark, user must free the c1.
+	* @return user must:
+	* 	continue connect app if success,
+	* 	try simple handshake if error is ERROR_RTMP_TRY_SIMPLE_HS,
+	* 	otherwise, disconnect
+	*/
+	virtual int handshake(SrsSocket& skt, char* c1);
+};
+
+#endif
\ No newline at end of file
diff --git a/trunk/src/core/srs_core_error.hpp b/trunk/src/core/srs_core_error.hpp
index 6304c1181..9807fad7d 100755
--- a/trunk/src/core/srs_core_error.hpp
+++ b/trunk/src/core/srs_core_error.hpp
@@ -62,6 +62,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define ERROR_RTMP_MESSAGE_ENCODE		308
 #define ERROR_RTMP_AMF0_ENCODE			309
 #define ERROR_RTMP_CHUNK_SIZE			310
+#define ERROR_RTMP_TRY_SIMPLE_HS		311
 
 #define ERROR_SYSTEM_STREAM_INIT		400
 #define ERROR_SYSTEM_PACKET_INVALID		401
diff --git a/trunk/src/core/srs_core_rtmp.cpp b/trunk/src/core/srs_core_rtmp.cpp
index 5441970a3..bd3963d87 100755
--- a/trunk/src/core/srs_core_rtmp.cpp
+++ b/trunk/src/core/srs_core_rtmp.cpp
@@ -29,6 +29,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <srs_core_protocol.hpp>
 #include <srs_core_auto_free.hpp>
 #include <srs_core_amf0.hpp>
+#include <srs_core_complex_handshake.hpp>
 
 /**
 * the signature for packets to client.
@@ -139,11 +140,13 @@ SrsRtmp::SrsRtmp(st_netfd_t client_stfd)
 {
 	protocol = new SrsProtocol(client_stfd);
 	stfd = client_stfd;
+	complex_handshake = new SrsComplexHandshake();
 }
 
 SrsRtmp::~SrsRtmp()
 {
 	srs_freep(protocol);
+	srs_freep(complex_handshake);
 }
 
 void SrsRtmp::set_recv_timeout(int timeout_ms)
@@ -189,6 +192,18 @@ int SrsRtmp::handshake()
 		return ret;
 	}
     srs_verbose("check c0 success, required plain text.");
+    
+    // try complex handshake
+    ret = complex_handshake->handshake(skt, c0c1 + 1);
+    if (ret == ERROR_SUCCESS) {
+	    srs_trace("complex handshake success.");
+	    return ret;
+    }
+    if (ret != ERROR_RTMP_TRY_SIMPLE_HS) {
+	    srs_error("complex handshake failed. ret=%d", ret);
+    	return ret;
+    }
+    srs_info("complex handhskae failed, try simple. ret=%d", ret);
 	
 	char* s0s1s2 = new char[3073];
     SrsAutoFree(char, s0s1s2, true);
@@ -208,7 +223,7 @@ int SrsRtmp::handshake()
     }
     srs_verbose("read c2 success.");
     
-    srs_trace("handshake success.");
+    srs_trace("simple handshake success.");
     
 	return ret;
 }
diff --git a/trunk/src/core/srs_core_rtmp.hpp b/trunk/src/core/srs_core_rtmp.hpp
index 054669e84..def9727e8 100755
--- a/trunk/src/core/srs_core_rtmp.hpp
+++ b/trunk/src/core/srs_core_rtmp.hpp
@@ -39,6 +39,7 @@ class ISrsMessage;
 class SrsCommonMessage;
 class SrsCreateStreamPacket;
 class SrsFMLEStartPacket;
+class SrsComplexHandshake;
 
 /**
 * the original request from client.
@@ -95,6 +96,7 @@ enum SrsClientType
 class SrsRtmp
 {
 private:
+	SrsComplexHandshake* complex_handshake;
 	SrsProtocol* protocol;
 	st_netfd_t stfd;
 public:
diff --git a/trunk/src/core/srs_core_source.cpp b/trunk/src/core/srs_core_source.cpp
index e39ee300b..dada68bb8 100755
--- a/trunk/src/core/srs_core_source.cpp
+++ b/trunk/src/core/srs_core_source.cpp
@@ -68,34 +68,10 @@ int SrsConsumer::enqueue(SrsSharedPtrMessage* msg)
 {
 	int ret = ERROR_SUCCESS;
 	
-	/**
-	* we use a very simple time jitter detect/correct algorithm:
-	* 1. delta: ensure the delta is positive and valid,
-	* 	we set the delta to DEFAULT_FRAME_TIME_MS,
-	* 	if the delta of time is nagative or greater than CONST_MAX_JITTER_MS.
-	* 2. last_pkt_time: specifies the original packet time,
-	* 	is used to detect next jitter.
-	* 3. last_pkt_correct_time: simply add the positive delta, 
-	* 	and enforce the time monotonically.
-	*/
-	int32_t time = msg->header.timestamp;
-	int32_t delta = time - last_pkt_time;
-
-	// if jitter detected, reset the delta.
-	if (delta < 0 || delta > CONST_MAX_JITTER_MS) {
-		delta = DEFAULT_FRAME_TIME_MS;
-		
-		srs_info("jitter detected, delta=%d, last_pkt=%d, time=%d, correct_to=%d",
-			delta, last_pkt_time, time, last_pkt_correct_time + delta);
-	} else {
-		srs_verbose("timestamp no jitter. time=%d, last_pkt=%d, correct_to=%d", 
-			time, last_pkt_time, last_pkt_correct_time + delta);
+	if ((ret = jitter_correct(msg)) != ERROR_SUCCESS) {
+		return ret;
 	}
 	
-	last_pkt_correct_time = srs_max(0, last_pkt_correct_time + delta);
-	msg->header.timestamp = last_pkt_correct_time;
-	last_pkt_time = time;
-	
 	msgs.push_back(msg);
 	
 	return ret;
@@ -130,6 +106,41 @@ int SrsConsumer::get_packets(int max_count, SrsSharedPtrMessage**& pmsgs, int& c
 	return ret;
 }
 
+int SrsConsumer::jitter_correct(SrsSharedPtrMessage* msg)
+{
+	int ret = ERROR_SUCCESS;
+	
+	/**
+	* we use a very simple time jitter detect/correct algorithm:
+	* 1. delta: ensure the delta is positive and valid,
+	* 	we set the delta to DEFAULT_FRAME_TIME_MS,
+	* 	if the delta of time is nagative or greater than CONST_MAX_JITTER_MS.
+	* 2. last_pkt_time: specifies the original packet time,
+	* 	is used to detect next jitter.
+	* 3. last_pkt_correct_time: simply add the positive delta, 
+	* 	and enforce the time monotonically.
+	*/
+	int32_t time = msg->header.timestamp;
+	int32_t delta = time - last_pkt_time;
+
+	// if jitter detected, reset the delta.
+	if (delta < 0 || delta > CONST_MAX_JITTER_MS) {
+		delta = DEFAULT_FRAME_TIME_MS;
+		
+		srs_info("jitter detected, delta=%d, last_pkt=%d, time=%d, correct_to=%d",
+			delta, last_pkt_time, time, last_pkt_correct_time + delta);
+	} else {
+		srs_verbose("timestamp no jitter. time=%d, last_pkt=%d, correct_to=%d", 
+			time, last_pkt_time, last_pkt_correct_time + delta);
+	}
+	
+	last_pkt_correct_time = srs_max(0, last_pkt_correct_time + delta);
+	msg->header.timestamp = last_pkt_correct_time;
+	last_pkt_time = time;
+	
+	return ret;
+}
+
 SrsSource::SrsSource(std::string _stream_url)
 {
 	stream_url = _stream_url;
diff --git a/trunk/src/core/srs_core_source.hpp b/trunk/src/core/srs_core_source.hpp
index 40419a9af..e6f2a0bc7 100755
--- a/trunk/src/core/srs_core_source.hpp
+++ b/trunk/src/core/srs_core_source.hpp
@@ -65,6 +65,11 @@ public:
 	* @max_count the max count to dequeue, 0 to dequeue all.
 	*/
 	virtual int get_packets(int max_count, SrsSharedPtrMessage**& pmsgs, int& count);
+private:
+	/**
+	* detect the time jitter and correct it.
+	*/
+	virtual int jitter_correct(SrsSharedPtrMessage* msg);
 };
 
 /**
diff --git a/trunk/src/srs/srs.upp b/trunk/src/srs/srs.upp
index e8a64aedb..244ee4533 100755
--- a/trunk/src/srs/srs.upp
+++ b/trunk/src/srs/srs.upp
@@ -20,6 +20,8 @@ file
     ..\core\srs_core_codec.cpp,
     ..\core\srs_core_rtmp.hpp,
     ..\core\srs_core_rtmp.cpp,
+    ..\core\srs_core_complex_handshake.hpp,
+    ..\core\srs_core_complex_handshake.cpp,
     ..\core\srs_core_protocol.hpp,
     ..\core\srs_core_protocol.cpp,
     ..\core\srs_core_amf0.hpp,