diff --git a/trunk/auto/generate_header.sh b/trunk/auto/generate_header.sh
index 0fa4f4b0c..a8d064800 100755
--- a/trunk/auto/generate_header.sh
+++ b/trunk/auto/generate_header.sh
@@ -2,3 +2,7 @@
 # genereate the library header file.
 
 objs=$1
+
+rm -f $objs/include/srs_librtmp.h &&
+cp $objs/../src/libs/srs_librtmp.hpp $objs/include/srs_librtmp.h
+echo "genereate srs-librtmp headers success"
diff --git a/trunk/auto/libs.sh b/trunk/auto/libs.sh
index 41766633d..880c41426 100755
--- a/trunk/auto/libs.sh
+++ b/trunk/auto/libs.sh
@@ -7,22 +7,20 @@
 #     $BUILD_KEY a string indicates the build key for Makefile. ie. dump
 #     $LIB_NAME the app name to output. ie. smart_server
 #     $MODULE_OBJS array, the objects to compile the app.
-#     $LINK_OPTIONS the linker options to generate the so(shared library).
 
 FILE=${SRS_OBJS}/${SRS_MAKEFILE}
 
 LIB_TARGET="${SRS_OBJS}/${LIB_NAME}"
 LIB_TAGET_STATIC="${LIB_TARGET}.a"
-LIB_TAGET_SHARED="${LIB_TARGET}.so"
 
 echo "generate lib ${LIB_NAME} depends..."
 
 echo "" >> ${FILE}
 echo "# archive library ${LIB_TAGET_STATIC}" >> ${FILE}
-echo "${BUILD_KEY}: ${LIB_TAGET_SHARED}" >> ${FILE}
+echo "${BUILD_KEY}: ${LIB_TAGET_STATIC}" >> ${FILE}
 
 # build depends
-echo -n "${LIB_TAGET_SHARED}: " >> ${FILE}
+echo -n "${LIB_TAGET_STATIC}: " >> ${FILE}
 for item in ${MODULE_OBJS[*]}; do
     FILE_NAME=`basename $item`
     FILE_NAME=${FILE_NAME%.*}
@@ -57,23 +55,4 @@ for item in ${MODULE_OBJS[*]}; do
 done
 echo "" >> ${FILE}
 
-echo "generate lib ${LIB_NAME} link...";
-
-# archive librtmp.so
-echo -n "	\$(GCC) -shared -o ${LIB_TAGET_SHARED} " >> ${FILE}
-for item in ${MODULE_OBJS[*]}; do
-    FILE_NAME=`basename $item`
-    FILE_NAME=${FILE_NAME%.*}
-    
-    if [ ! -f ${item} ]; then
-        continue;
-    fi
-    
-    OBJ_FILE=${SRS_OBJS}/$item
-    OBJ_FILE="${OBJ_FILE%.*}.o"
-    echo -n "${OBJ_FILE} " >> ${FILE}
-done
-echo -n "${LINK_OPTIONS} " >> ${FILE}
-echo "" >> ${FILE}
-
 echo -n "generate lib ${LIB_NAME} ok"; echo '!';
diff --git a/trunk/configure b/trunk/configure
index 1062b75de..caf05e429 100755
--- a/trunk/configure
+++ b/trunk/configure
@@ -54,7 +54,7 @@ help:
 	@echo "  librtmp    build the client publish/play library."
 
 clean: 
-	(rm -f Makefile; cd ${SRS_OBJS}; rm -rf srs bandwidth Makefile *.hpp src st_*_load research)
+	(rm -f Makefile; cd ${SRS_OBJS}; rm -rf srs bandwidth Makefile *.hpp src st_*_load research include lib)
 
 server: _prepare_dir
 	@echo "build the srs(simple rtmp server) over st(state-threads)"
@@ -83,8 +83,10 @@ GDBDebug="-g -O0"
 WarnLevel="-Wall"
 # the compile standard.
 CppStd="-ansi"
+# for library compile
+LibraryCompile="-fPIC"
 # the cxx flag generated.
-CXXFLAGS="${CppStd} ${WarnLevel} ${GDBDebug}"
+CXXFLAGS="${CppStd} ${WarnLevel} ${GDBDebug} ${LibraryCompile}"
 #CXXFLAGS="${CppStd} ${WarnLevel} ${GDBDebug} ${Performance}"
 cat << END > ${SRS_OBJS}/${SRS_MAKEFILE}
 CC ?= gcc
@@ -166,7 +168,7 @@ APP_OBJS="${MODULE_OBJS[@]}"
 #LIBS Module, build libsrs.a for static link.
 MODULE_ID="LIBS" 
 MODULE_DEPENDS=("CORE" "KERNEL" "RTMP") 
-ModuleLibIncs=()
+ModuleLibIncs=(${SRS_OBJS})
 MODULE_FILES=("srs_librtmp")
 MODULE_DIR="src/libs" . auto/modules.sh
 LIBS_OBJS="${MODULE_OBJS[@]}"
@@ -202,7 +204,7 @@ BUILD_KEY="bandwidth" APP_MAIN="srs_main_bandcheck" APP_NAME="bandwidth" . auto/
 #
 # srs librtmp
 MODULE_OBJS="${CORE_OBJS[@]} ${KERNEL_OBJS[@]} ${RTMP_OBJS[@]} ${LIBS_OBJS[@]}"
-BUILD_KEY="librtmp" LIB_NAME="srs_librtmp" LINK_OPTIONS="" . auto/libs.sh
+BUILD_KEY="librtmp" LIB_NAME="lib/srs_librtmp" . auto/libs.sh
 
 echo 'configure ok! '
 
@@ -211,6 +213,9 @@ echo 'configure ok! '
 #####################################################################################
 # create objs/logs for ffmpeg to write log.
 mkdir -p ${SRS_OBJS}/logs
+# lib and include for library
+mkdir -p ${SRS_OBJS}/lib
+mkdir -p ${SRS_OBJS}/include
 
 #####################################################################################
 # configure summary
diff --git a/trunk/research/librtmp/Makefile b/trunk/research/librtmp/Makefile
new file mode 100755
index 000000000..1feadafd0
--- /dev/null
+++ b/trunk/research/librtmp/Makefile
@@ -0,0 +1,7 @@
+.PHONY: clean
+
+srs_publish: srs_publish.c Makefile ../../objs/include/srs_librtmp.h ../../objs/lib/srs_librtmp.a
+	gcc srs_publish.c ../../objs/lib/srs_librtmp.a -g -O0 -lstdc++ -o srs_publish
+    
+clean:
+	@rm -f srs_publish
diff --git a/trunk/research/librtmp/srs_publish.c b/trunk/research/librtmp/srs_publish.c
new file mode 100755
index 000000000..54e824ad3
--- /dev/null
+++ b/trunk/research/librtmp/srs_publish.c
@@ -0,0 +1,36 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2013-2014 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.
+*/
+/**
+gcc srs_publish.c ../../objs/lib/srs_librtmp.a -g -O0 -lstdc++ -o srs_publish
+*/
+
+#include <stdio.h>
+#include "../../objs/include/srs_librtmp.h"
+
+int main(int argc, char** argv)
+{
+    printf("srs(simple-rtmp-server) client librtmp library.\n");
+    printf("version: %d.%d.%d\n", srs_version_major(), srs_version_minor(), srs_version_revision());
+    
+    return 0;
+}
diff --git a/trunk/src/app/srs_core_forward.cpp b/trunk/src/app/srs_core_forward.cpp
index a06a91581..16de20089 100644
--- a/trunk/src/app/srs_core_forward.cpp
+++ b/trunk/src/app/srs_core_forward.cpp
@@ -77,8 +77,8 @@ int SrsForwarder::on_publish(SrsRequest* req, std::string forward_server)
 	
 	stream_name = req->stream;
 	server = forward_server;
-	std::string s_port = RTMP_DEFAULT_PORTS;
-	port = RTMP_DEFAULT_PORT;
+	std::string s_port = RTMP_DEFAULT_PORT;
+	port = ::atoi(RTMP_DEFAULT_PORT);
 	
 	size_t pos = forward_server.find(":");
 	if (pos != std::string::npos) {
diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index 25c6db58b..78334b0fe 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -29,7 +29,10 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
 // current release version
-#define RTMP_SIG_SRS_VERSION "0.9.8"
+#define VERSION_MAJOR "0"
+#define VERSION_MINOR "9"
+#define VERSION_REVISION "8"
+#define RTMP_SIG_SRS_VERSION VERSION_MAJOR"."VERSION_MINOR"."VERSION_REVISION
 // server info.
 #define RTMP_SIG_SRS_KEY "srs"
 #define RTMP_SIG_SRS_ROLE "origin server"
diff --git a/trunk/src/libs/srs_librtmp.cpp b/trunk/src/libs/srs_librtmp.cpp
index e6dac2ee6..156b799f2 100644
--- a/trunk/src/libs/srs_librtmp.cpp
+++ b/trunk/src/libs/srs_librtmp.cpp
@@ -22,3 +22,78 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
 #include <srs_librtmp.hpp>
+
+#include <stdlib.h>
+
+#include <srs_protocol_rtmp.hpp>
+    
+/**
+* the stream over epoll: never wait for data coming, that is async mode.
+*/
+class SimpleSocketStream
+{
+private:
+    int sock;
+public:
+    SimpleSocketStream(int fd){
+        sock = fd;
+    }
+    virtual ~SimpleSocketStream() {
+        ::close(sock);
+    }
+public:
+};
+
+/**
+* export runtime context.
+*/
+struct Context
+{
+    SrsRtmpClient* rtmp;
+    SimpleSocketStream* stream;
+    int stream_id;
+    
+    Context() {
+        rtmp = NULL;
+        stream = NULL;
+        stream_id = 0;
+    }
+    virtual ~Context() {
+        srs_freep(rtmp);
+        srs_freep(stream);
+    }
+};
+
+#ifdef __cplusplus
+extern "C"{
+#endif
+
+srs_rtmp_t srs_rtmp_create(){
+    Context* context = new Context();
+    return context;
+}
+
+void srs_rtmp_destroy(srs_rtmp_t rtmp){
+    srs_assert(rtmp != NULL);
+    Context* context = (Context*)rtmp;
+    srs_freep(context);
+}
+
+int srs_version_major()
+{
+	return ::atoi(VERSION_MAJOR);
+}
+
+int srs_version_minor()
+{
+	return ::atoi(VERSION_MINOR);
+}
+
+int srs_version_revision()
+{
+	return ::atoi(VERSION_REVISION);
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/trunk/src/libs/srs_librtmp.hpp b/trunk/src/libs/srs_librtmp.hpp
index f845ce268..0e429289d 100644
--- a/trunk/src/libs/srs_librtmp.hpp
+++ b/trunk/src/libs/srs_librtmp.hpp
@@ -25,7 +25,36 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define SRS_LIB_RTMP_HPP
 
 /*
-#include <srs_librtmp.hpp>
+#include <srs_librtmp.h>
 */
 
+#ifdef __cplusplus
+extern "C"{
+#endif
+
+// the output handler.
+typedef void* srs_rtmp_t;
+
+/**
+* create a rtmp protocol stack.
+* @return a rtmp handler, or NULL if error occured.
+*/
+srs_rtmp_t srs_rtmp_create();
+
+/**
+* close a rtmp protocl stack.
+*/
+void srs_rtmp_destroy(srs_rtmp_t rtmp);
+
+/**
+* get protocol stack version
+*/
+int srs_version_major();
+int srs_version_minor();
+int srs_version_revision();
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif
diff --git a/trunk/src/rtmp/srs_protocol_rtmp.cpp b/trunk/src/rtmp/srs_protocol_rtmp.cpp
index 65984e0d4..426bd5b9f 100644
--- a/trunk/src/rtmp/srs_protocol_rtmp.cpp
+++ b/trunk/src/rtmp/srs_protocol_rtmp.cpp
@@ -116,7 +116,7 @@ int SrsRequest::discovery_app()
 		srs_verbose("discovery vhost=%s", vhost.c_str());
 	}
 
-	port = RTMP_DEFAULT_PORTS;
+	port = RTMP_DEFAULT_PORT;
 	if ((pos = vhost.find(":")) != std::string::npos) {
 		port = vhost.substr(pos + 1);
 		vhost = vhost.substr(0, pos);
diff --git a/trunk/src/rtmp/srs_protocol_utility.hpp b/trunk/src/rtmp/srs_protocol_utility.hpp
index e40359bdc..d063a31d6 100644
--- a/trunk/src/rtmp/srs_protocol_utility.hpp
+++ b/trunk/src/rtmp/srs_protocol_utility.hpp
@@ -29,8 +29,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 #include <srs_core.hpp>
 
-#define RTMP_DEFAULT_PORT 1935
-#define RTMP_DEFAULT_PORTS "1935"
+#define RTMP_DEFAULT_PORT "1935"
 
 // the default chunk size for system.
 #define SRS_CONF_DEFAULT_CHUNK_SIZE 60000
diff --git a/trunk/src/srs/srs.upp b/trunk/src/srs/srs.upp
index e4f7868a6..631dcf308 100755
--- a/trunk/src/srs/srs.upp
+++ b/trunk/src/srs/srs.upp
@@ -72,6 +72,7 @@ file
     ..\app\srs_core_source.hpp,
     ..\app\srs_core_source.cpp,
     research readonly separator,
+    ..\..\research\librtmp\srs_publish.c,
     ..\..\research\hls\ts_info.cc;
 
 mainconfig