diff --git a/trunk/research/librtmp/Makefile b/trunk/research/librtmp/Makefile
index e097c191d..66ebb56a3 100644
--- a/trunk/research/librtmp/Makefile
+++ b/trunk/research/librtmp/Makefile
@@ -26,7 +26,7 @@ help:
 	@echo "Remark: before make this sample, user must make the srs, with/without ssl"
     
 clean:
-	@rm -f srs_publish_nossl srs_play_nossl srs_publish_ssl srs_play_ssl srs_ingest_flv srs_ingest_rtmp
+	@rm -f srs_publish_nossl srs_play_nossl srs_publish_ssl srs_play_ssl srs_ingest_flv_ssl srs_ingest_rtmp_ssl srs_ingest_flv_nossl srs_ingest_rtmp_nossl
 
 # srs library root
 SRS_OBJS = ../../objs
@@ -35,6 +35,8 @@ SRS_LIBRTMP_I = $(SRS_OBJS)/include/srs_librtmp.h
 SRS_LIBRTMP_L = $(SRS_OBJS)/lib/srs_librtmp.a
 # openssl for complex handshake, built by srs.
 SRS_LIBSSL_L = $(SRS_OBJS)/openssl/lib/libssl.a $(SRS_OBJS)/openssl/lib/libcrypto.a
+# the research public headers
+SRS_RESEARCH_DEPS = Makefile srs_research_public.h
 
 # for x86/x64 platform
 ifeq ($(GCC), gcc)
@@ -44,28 +46,28 @@ else
     EXTRA_CXX_FLAG = -g -O0 -static -lstdc++
 endif
 
-srs_publish_nossl: srs_publish.c Makefile $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L)
+srs_publish_nossl: srs_publish.c $(SRS_RESEARCH_DEPS) $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L)
 	$(GCC) srs_publish.c $(SRS_LIBRTMP_L) $(EXTRA_CXX_FLAG) -o srs_publish_nossl
 
-srs_play_nossl: srs_play.c Makefile $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L)
+srs_play_nossl: srs_play.c $(SRS_RESEARCH_DEPS) $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L)
 	$(GCC) srs_play.c $(SRS_LIBRTMP_L) $(EXTRA_CXX_FLAG) -o srs_play_nossl
 
-srs_ingest_flv_nossl: srs_ingest_flv.c Makefile $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L)
+srs_ingest_flv_nossl: srs_ingest_flv.c $(SRS_RESEARCH_DEPS) $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L)
 	$(GCC) srs_ingest_flv.c $(SRS_LIBRTMP_L) $(EXTRA_CXX_FLAG) -o srs_ingest_flv_nossl
 
-srs_ingest_rtmp_nossl: srs_ingest_rtmp.c Makefile $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L)
+srs_ingest_rtmp_nossl: srs_ingest_rtmp.c $(SRS_RESEARCH_DEPS) $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L)
 	$(GCC) srs_ingest_rtmp.c $(SRS_LIBRTMP_L) $(EXTRA_CXX_FLAG) -o srs_ingest_rtmp_nossl
 
-srs_publish_ssl: srs_publish.c Makefile $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L) $(SRS_LIBSSL_L)
+srs_publish_ssl: srs_publish.c $(SRS_RESEARCH_DEPS) $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L) $(SRS_LIBSSL_L)
 	$(GCC) srs_publish.c $(SRS_LIBRTMP_L) $(SRS_LIBSSL_L) $(EXTRA_CXX_FLAG) -o srs_publish_ssl
 
-srs_play_ssl: srs_play.c Makefile $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L) $(SRS_LIBSSL_L)
+srs_play_ssl: srs_play.c $(SRS_RESEARCH_DEPS) $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L) $(SRS_LIBSSL_L)
 	$(GCC) srs_play.c $(SRS_LIBRTMP_L) $(SRS_LIBSSL_L) $(EXTRA_CXX_FLAG) -o srs_play_ssl
 
-srs_ingest_flv_ssl: srs_ingest_flv.c Makefile $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L) $(SRS_LIBSSL_L)
+srs_ingest_flv_ssl: srs_ingest_flv.c $(SRS_RESEARCH_DEPS) $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L) $(SRS_LIBSSL_L)
 	$(GCC) srs_ingest_flv.c $(SRS_LIBRTMP_L) $(SRS_LIBSSL_L) $(EXTRA_CXX_FLAG) -o srs_ingest_flv_ssl
 
-srs_ingest_rtmp_ssl: srs_ingest_rtmp.c Makefile $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L) $(SRS_LIBSSL_L)
+srs_ingest_rtmp_ssl: srs_ingest_rtmp.c $(SRS_RESEARCH_DEPS) $(SRS_LIBRTMP_I) $(SRS_LIBRTMP_L) $(SRS_LIBSSL_L)
 	$(GCC) srs_ingest_rtmp.c $(SRS_LIBRTMP_L) $(SRS_LIBSSL_L) $(EXTRA_CXX_FLAG) -o srs_ingest_rtmp_ssl
 
 # alias for publish/play with/without ssl
diff --git a/trunk/research/librtmp/srs_ingest_flv.c b/trunk/research/librtmp/srs_ingest_flv.c
index e624a972d..07bf1af7f 100644
--- a/trunk/research/librtmp/srs_ingest_flv.c
+++ b/trunk/research/librtmp/srs_ingest_flv.c
@@ -33,13 +33,7 @@ gcc srs_ingest_flv.c ../../objs/lib/srs_librtmp.a -g -O0 -lstdc++ -o srs_ingest_
 #include <fcntl.h>
 
 #include "../../objs/include/srs_librtmp.h"
-
-#define trace(msg, ...) printf(msg, ##__VA_ARGS__);printf("\n")
-#define verbose(msg, ...) printf(msg, ##__VA_ARGS__);printf("\n")
-#if 1
-#undef verbose
-#define verbose(msg, ...) (void)0
-#endif
+#include "srs_research_public.h"
 
 int proxy(int flv_fd, srs_rtmp_t ortmp);
 int connect_oc(srs_rtmp_t ortmp);
@@ -235,8 +229,8 @@ int flv_read_packet(int flv_fd, int* type, u_int32_t* timestamp, char** data, in
     char th[11]; // tag header
     char ts[4]; // tag size
     
-    u_int32_t data_size;
-    u_int32_t time;
+    u_int32_t data_size = 0;
+    u_int32_t time = 0;
     
     char* pp;
     
diff --git a/trunk/research/librtmp/srs_ingest_rtmp.c b/trunk/research/librtmp/srs_ingest_rtmp.c
index 45811dec3..1adeb889f 100644
--- a/trunk/research/librtmp/srs_ingest_rtmp.c
+++ b/trunk/research/librtmp/srs_ingest_rtmp.c
@@ -29,13 +29,7 @@ gcc srs_ingest_rtmp.c ../../objs/lib/srs_librtmp.a -g -O0 -lstdc++ -o srs_ingest
 #include <unistd.h>
 
 #include "../../objs/include/srs_librtmp.h"
-
-#define trace(msg, ...) printf(msg, ##__VA_ARGS__);printf("\n")
-#define verbose(msg, ...) printf(msg, ##__VA_ARGS__);printf("\n")
-#if 1
-#undef verbose
-#define verbose(msg, ...) (void)0
-#endif
+#include "srs_research_public.h"
 
 int connect_ic(srs_rtmp_t irtmp);
 int connect_oc(srs_rtmp_t ortmp);
diff --git a/trunk/research/librtmp/srs_research_public.h b/trunk/research/librtmp/srs_research_public.h
new file mode 100644
index 000000000..63d13190b
--- /dev/null
+++ b/trunk/research/librtmp/srs_research_public.h
@@ -0,0 +1,67 @@
+/*
+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.
+*/
+
+#ifndef SRS_RESEARH_PUBLIC_HPP
+#define SRS_RESEARH_PUBLIC_HPP
+
+/*
+#include "srs_research_public.h"
+*/
+
+#include <string.h>
+#include <time.h>
+
+char* format_time()
+{
+    struct timeval tv;
+    static char buf[23];
+    
+    memset(buf, 0, sizeof(buf));
+    
+    // clock time
+    if (gettimeofday(&tv, NULL) == -1) {
+        return buf;
+    }
+    
+    // to calendar time
+    struct tm* tm;
+    if ((tm = localtime(&tv.tv_sec)) == NULL) {
+        return buf;
+    }
+    
+    snprintf(buf, sizeof(buf), 
+        "%d-%02d-%02d %02d:%02d:%02d.%03d", 
+        1900 + tm->tm_year, 1 + tm->tm_mon, tm->tm_mday, 
+        tm->tm_hour, tm->tm_min, tm->tm_sec, 
+        (int)(tv.tv_usec / 1000));
+    
+    return buf;
+}
+#define trace(msg, ...) printf("[%s]", format_time());printf(msg, ##__VA_ARGS__);printf("\n")
+#define verbose(msg, ...) printf("[%s]", format_time());printf(msg, ##__VA_ARGS__);printf("\n")
+#if 1
+#undef verbose
+#define verbose(msg, ...) (void)0
+#endif
+
+#endif
diff --git a/trunk/src/srs/srs.upp b/trunk/src/srs/srs.upp
index 51dafb6be..f9e3cacac 100755
--- a/trunk/src/srs/srs.upp
+++ b/trunk/src/srs/srs.upp
@@ -103,6 +103,7 @@ file
 	..\..\research\librtmp\srs_ingest_rtmp.c,
 	..\..\research\librtmp\srs_play.c,
 	..\..\research\librtmp\srs_publish.c,
+	..\..\research\librtmp\srs_research_public.h,
 	..\..\research\hls\ts_info.cc;
 
 mainconfig