diff --git a/README.md b/README.md
index 69f4d7681..4c0076fe3 100755
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ Supported operating systems and hardware:
 ## Summary
 01. Simple: also stable enough.<br/>
 02. [High-performance](https://github.com/winlinvip/simple-rtmp-server/wiki/Performance): single-thread, async socket, event/st-thread driven.<br/>
-03. With RTMP edge server, support origin server.<br/>
+03. With RTMP edge server(plan), support origin server.<br/>
 04. RTMP without vod streaming, live streaming only.<br/>
 05. With multiple processes, support single process.<br/>
 06. Support vhost, support \_\_defaultVhost\_\_.<br/>
diff --git a/trunk/auto/options.sh b/trunk/auto/options.sh
index 6326c37bc..638a0755e 100755
--- a/trunk/auto/options.sh
+++ b/trunk/auto/options.sh
@@ -32,6 +32,9 @@ SRS_ARM_UBUNTU12=RESERVED # armhf(v7cpu) built on ubuntu12
 SRS_PREFIX=/usr/local/srs
 SRS_JOBS=1
 SRS_STATIC=RESERVED
+# private internal
+# dev, open all features for dev, no gperf/prof/arm.
+SRS_DEV=NO
 
 #####################################################################################
 # parse options
@@ -88,6 +91,7 @@ do
         --jobs)                         SRS_JOBS=${value}         ;;
         --prefix)                       SRS_PREFIX=${value}       ;;
         --static)                       SRS_STATIC=YES            ;;
+        --dev)                          SRS_DEV=YES               ;;
 
         *)
             echo "$0: error: invalid option \"$option\""
@@ -116,6 +120,7 @@ if [ $SRS_ARM_UBUNTU12 = YES ]; then
     if [ $SRS_GPERF_CP = RESERVED ]; then SRS_GPERF_CP=NO; fi
     if [ $SRS_GPROF = RESERVED ]; then SRS_GPROF=NO; fi
     if [ $SRS_ARM_UBUNTU12 = RESERVED ]; then SRS_ARM_UBUNTU12=NO; fi
+    if [ $SRS_DEV = RESERVED ]; then SRS_DEV=NO; fi
     # for arm, always set to static link.
     SRS_STATIC=YES
 else
@@ -135,6 +140,28 @@ else
     if [ $SRS_GPROF = RESERVED ]; then SRS_GPROF=NO; fi
     if [ $SRS_ARM_UBUNTU12 = RESERVED ]; then SRS_ARM_UBUNTU12=NO; fi
     if [ $SRS_STATIC = RESERVED ]; then SRS_STATIC=NO; fi
+    if [ $SRS_DEV = RESERVED ]; then SRS_DEV=NO; fi
+fi
+
+# if dev specified, open features if possible.
+if [ $SRS_DEV = YES ]; then
+    SRS_HLS=YES
+    SRS_NGINX=YES
+    SRS_SSL=YES
+    SRS_FFMPEG=YES
+    SRS_HTTP_CALLBACK=YES
+    SRS_LIBRTMP=YES
+    SRS_BWTC=YES
+    SRS_RESEARCH=YES
+    SRS_UTEST=YES
+    SRS_GPERF=NO
+    SRS_GPERF_MC=NO
+    SRS_GPERF_MP=NO
+    SRS_GPERF_CP=NO
+    SRS_GPROF=NO
+    SRS_ARM_UBUNTU12=NO
+    # for arm, always set to static link.
+    SRS_STATIC=NO
 fi
 
 # parse the jobs for make
@@ -190,7 +217,8 @@ if [ $help = yes ]; then
   --static                 whether add '-static' to link options. always set this option for arm.
   --jobs[=N]               Allow N jobs at once; infinite jobs with no arg.
                            used for make in the configure, for example, to make ffmpeg.
-  --prefix=<path>           the absolute install path for srs.
+  --prefix=<path>          the absolute install path for srs.
+  --dev                    for dev, open all features, no gperf/gprof/arm.
 
 END
     exit 0
diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index 3abb78296..f0f608b89 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR "0"
 #define VERSION_MINOR "9"
-#define VERSION_REVISION "30"
+#define VERSION_REVISION "31"
 #define RTMP_SIG_SRS_VERSION VERSION_MAJOR"."VERSION_MINOR"."VERSION_REVISION
 // server info.
 #define RTMP_SIG_SRS_KEY "srs"
diff --git a/trunk/src/main/srs_main_bandcheck.cpp b/trunk/src/main/srs_main_bandcheck.cpp
index 8092161a1..7450fe640 100644
--- a/trunk/src/main/srs_main_bandcheck.cpp
+++ b/trunk/src/main/srs_main_bandcheck.cpp
@@ -469,7 +469,7 @@ int SrsBandCheckClient::send_pub_data()
             std::stringstream seq;
             seq << i;
             std::string play_data = "SrS band check data from client's publishing......";
-            pkt->data->set(seq.str(), new SrsAmf0String(play_data.c_str()));
+            pkt->data->set(seq.str(), SrsAmf0Any::str(play_data.c_str()));
         }
         data_count += 100;
 
@@ -545,8 +545,9 @@ int SrsBandCheckClient::expect_finished()
                 return ret;
             }
 
-            SrsAmf0Object* object;
-            if ((ret = srs_amf0_read_object(stream, object)) != ERROR_SUCCESS) {
+            SrsAmf0Object* object = SrsAmf0Any::object();
+            if ((ret = object->read(stream)) != ERROR_SUCCESS) {
+                srs_freep(object);
                 srs_error("amfo read object error. ret=%d", ret);
                 return ret;
             }
@@ -556,36 +557,24 @@ int SrsBandCheckClient::expect_finished()
 
             SrsAmf0Any* start_time_any = object->get_property("start_time");
             if (start_time_any && start_time_any->is_number()) {
-                SrsAmf0Number* start_time_number = dynamic_cast<SrsAmf0Number*> (start_time_any);
-                if (start_time_number) {
-                    start_time = start_time_number->value;
-                }
+                start_time = start_time_any->to_number();
             }
 
             SrsAmf0Any* end_time_any = object->get_property("end_time");
             if (end_time_any && end_time_any->is_number()) {
-                SrsAmf0Number* end_time_number = dynamic_cast<SrsAmf0Number*> (end_time_any);
-                if (end_time_number) {
-                    end_time = end_time_number->value;
-                }
+                end_time = end_time_any->to_number();
             }
 
             int play_kbps = 0;
             int pub_kbps = 0;
             SrsAmf0Any* play_kbp_any = object->get_property("play_kbps");
             if (play_kbp_any && play_kbp_any->is_number()) {
-                SrsAmf0Number* play_kbps_number = dynamic_cast<SrsAmf0Number*> (play_kbp_any);
-                if (play_kbps_number) {
-                    play_kbps = play_kbps_number->value;
-                }
+                play_kbps = play_kbp_any->to_number();
             }
 
             SrsAmf0Any* pub_kbp_any = object->get_property("publish_kbps");
             if (pub_kbp_any && pub_kbp_any->is_number()) {
-                SrsAmf0Number* pub_kbps_number = dynamic_cast<SrsAmf0Number*> (pub_kbp_any);
-                if (pub_kbps_number) {
-                    pub_kbps = pub_kbps_number->value;
-                }
+                pub_kbps = pub_kbp_any->to_number();
             }
 
             float time_elapsed;