diff --git a/trunk/conf/full.conf b/trunk/conf/full.conf index 2c1089665..bb852f43e 100644 --- a/trunk/conf/full.conf +++ b/trunk/conf/full.conf @@ -370,6 +370,9 @@ stream_caster { # Whether bundle media stream port. # default: on invite_port_fixed on; + # interval to query equipment list from equipment or subordinate domain, unit(s) + # default: 60 + query_catalog_interval 60; } } diff --git a/trunk/conf/push.gb28181.conf b/trunk/conf/push.gb28181.conf index 0b49b8e77..27b7996ef 100644 --- a/trunk/conf/push.gb28181.conf +++ b/trunk/conf/push.gb28181.conf @@ -90,16 +90,18 @@ stream_caster { # 认为设备离线 keepalive_timeout 120; - # 注册之后是否自动给设备端发送invite # on: 是 off 不是，需要通过api控制 auto_play on; - # 设备将流发送的端口，是否固定 # on 发送流到多路复用端口 如9000 # off 自动从rtp_mix_port - rtp_max_port 之间的值中 # 选一个可以用的端口 invite_port_fixed on; + + # 向设备或下级域查询设备列表的间隔，单位(秒) + # 默认60秒 + query_catalog_interval 60; } } vhost __defaultVhost__ { diff --git a/trunk/research/players/rtc_player.html b/trunk/research/players/rtc_player.html index e1eb61eeb..e531aa434 100644 --- a/trunk/research/players/rtc_player.html +++ b/trunk/research/players/rtc_player.html @@ -24,12 +24,14 @@ diff --git a/trunk/research/players/srs_bwt.html b/trunk/research/players/srs_bwt.html index 53d893c7e..408516d9c 100644 --- a/trunk/research/players/srs_bwt.html +++ b/trunk/research/players/srs_bwt.html @@ -30,6 +30,7 @@
  • VLC播放器
    • +
  • SRS-GB28181
    • diff --git a/trunk/research/players/srs_chat.html b/trunk/research/players/srs_chat.html index 220f6f19f..6591c1492 100644 --- a/trunk/research/players/srs_chat.html +++ b/trunk/research/players/srs_chat.html @@ -29,6 +29,7 @@
  • VLC播放器
    • +
  • SRS-GB28181
    • diff --git a/trunk/research/players/srs_gb28181.html b/trunk/research/players/srs_gb28181.html new file mode 100644 index 000000000..702cf8473 --- /dev/null +++ b/trunk/research/players/srs_gb28181.html @@ -0,0 +1,1244 @@ + + + + SRS + + + + + + +
    +
    +
    + SRS +
    + +
    +
    +
    +
    +
    +
    +
    + +

    Usage:

     +

    + 请点击下面的图标，启用Flash +

    +

    + 若没有见到这个图标，Chrome浏览器请打开 + chrome://settings/content/flash 并修改为"Ask first"。 +

    +
    +
    +
    +
    + +
    + API地址与端口 + +

    + +
    + +
    +
    +
    + sip会话(需内部启用sip) +
    +
      +
      + + +
      +
      + + + + + +
      + 当前会话: +
      + 
      
+                  
      
+               
      
+            
      
+        
      
+      
      
+      
      
+
+      
      
+        
      
+            
      
+                GB28181媒体通道
+                
      
+                 
        
+                
        
+              
+            
        
+            
        
+                
+                
+                
+                
        
+                  当前通道:
+                  
        
+                    
+                    
+                     
+                  
        
+                  
        
+                    
+                    
+                    
        RTC播放，需要后台启用RTC功能才能正常播放， 
+                        RTC配置参考
+                    
        
+                  
        
+                  
        
+                    
        
+                  
        
+               
        
+            
        
+        
        
+      
        
+
+      
        
+        
+
+        
+
+        
+
+        
+    
        
+
+    
+
        
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/trunk/research/players/srs_player.html b/trunk/research/players/srs_player.html
index eb50aacc9..84b78b5c8 100755
--- a/trunk/research/players/srs_player.html
+++ b/trunk/research/players/srs_player.html
@@ -34,12 +34,14 @@
                 
             
         
diff --git a/trunk/research/players/srs_publisher.html b/trunk/research/players/srs_publisher.html
index a649b51bd..e07467b17 100644
--- a/trunk/research/players/srs_publisher.html
+++ b/trunk/research/players/srs_publisher.html
@@ -29,6 +29,7 @@
                     
                     
                     
      • VLC播放器
        • 
+                    
      • SRS-GB28181
        • 
                 
             
         
diff --git a/trunk/research/players/srs_publisher2.html b/trunk/research/players/srs_publisher2.html
index 04836a2af..bf75f3983 100644
--- a/trunk/research/players/srs_publisher2.html
+++ b/trunk/research/players/srs_publisher2.html
@@ -25,6 +25,7 @@
                     
                     
                     
      • VLC播放器
        • 
+                    
      • SRS-GB28181
        • 
                 
             
         
diff --git a/trunk/research/players/vlc.html b/trunk/research/players/vlc.html
index 66591f4be..8dbf5e47c 100644
--- a/trunk/research/players/vlc.html
+++ b/trunk/research/players/vlc.html
@@ -26,6 +26,7 @@
                     
                     
                     
      • VLC播放器
        • 
+                    
      • SRS-GB28181
        • 
                 
             
         
diff --git a/trunk/src/app/srs_app_config.cpp b/trunk/src/app/srs_app_config.cpp
index 4f15e0356..01db3abc0 100644
--- a/trunk/src/app/srs_app_config.cpp
+++ b/trunk/src/app/srs_app_config.cpp
@@ -2195,8 +2195,34 @@ srs_error_t SrsConfig::global_to_json(SrsJsonObject* obj)
                     sobj->set(sdir->name, sdir->dumps_arg0_to_str());
                 } else if (sdir->name == "auto_create_channel") {
                     sobj->set(sdir->name, sdir->dumps_arg0_to_str());
-                }
-            }
+                } else if (sdir->name == "sip"){
+                    SrsJsonObject* ssobj = SrsJsonAny::object();
+                    sobj->set(sdir->name, ssobj);
+                    
+                    for (int j = 0; j < (int)sdir->directives.size(); j++) {
+                        SrsConfDirective* ssdir = sdir->directives.at(j);
+                        if (ssdir->name == "enabled") {
+                            ssobj->set(ssdir->name, ssdir->dumps_arg0_to_boolean());
+                        } else if (ssdir->name == "listen") {
+                            ssobj->set(ssdir->name, ssdir->dumps_arg0_to_integer());
+                        } else if (ssdir->name == "serial") {
+                            ssobj->set(ssdir->name, ssdir->dumps_arg0_to_str());
+                        } else if (ssdir->name == "realm") {
+                            ssobj->set(ssdir->name, ssdir->dumps_arg0_to_str());
+                        } else if (ssdir->name == "ack_timeout") {
+                            ssobj->set(ssdir->name, ssdir->dumps_arg0_to_integer());
+                        } else if (ssdir->name == "keepalive_timeout") {
+                            ssobj->set(ssdir->name, ssdir->dumps_arg0_to_integer());
+                        } else if (ssdir->name == "auto_play") {
+                            ssobj->set(ssdir->name, ssdir->dumps_arg0_to_boolean());
+                        } else if (ssdir->name == "invite_port_fixed") {
+                            ssobj->set(ssdir->name, ssdir->dumps_arg0_to_boolean());
+                        } else if (ssdir->name == "query_catalog_interval") {
+                            ssobj->set(ssdir->name, ssdir->dumps_arg0_to_integer());
+                        }
+                    }
+                }//end if
+            }//end for
             obj->set(dir->name, sobj);
         } else {
             continue;
@@ -3730,7 +3756,8 @@ srs_error_t SrsConfig::check_normal_config()
                 for (int j = 0; j < (int)conf->directives.size(); j++) {
                     string m = conf->at(j)->name;
                     if (m != "enabled"  && m != "listen" && m != "ack_timeout" && m != "keepalive_timeout"
-                        && m != "host" && m != "serial" && m != "realm" && m != "auto_play" && m != "invite_port_fixed") {
+                        && m != "host" && m != "serial" && m != "realm" && m != "auto_play" && m != "invite_port_fixed"
+                        && m != "query_catalog_interval") {
                         return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "illegal stream_caster.%s", m.c_str());
                     }
                 }
@@ -4630,6 +4657,28 @@ bool SrsConfig::get_stream_caster_gb28181_auto_create_channel(SrsConfDirective*
     return SRS_CONF_PERFER_FALSE(conf->arg0());
 }
 
+srs_utime_t SrsConfig::get_stream_caster_gb28181_sip_query_catalog_interval(SrsConfDirective* conf)
+{
+    static srs_utime_t DEFAULT = 60 * SRS_UTIME_SECONDS;
+
+
+    if (!conf) {
+        return DEFAULT;
+    }
+
+    conf = conf->get("sip");
+    if (!conf) {
+        return DEFAULT;
+    }
+
+    conf = conf->get("query_catalog_interval");
+    if (!conf || conf->arg0().empty()) {
+        return DEFAULT;
+    }
+
+    return (srs_utime_t)(::atoi(conf->arg0().c_str()) * SRS_UTIME_SECONDS);
+}
+
 int SrsConfig::get_rtc_server_enabled()
 {
     SrsConfDirective* conf = root->get("rtc_server");
diff --git a/trunk/src/app/srs_app_config.hpp b/trunk/src/app/srs_app_config.hpp
index 5401c29a2..04552c3be 100644
--- a/trunk/src/app/srs_app_config.hpp
+++ b/trunk/src/app/srs_app_config.hpp
@@ -517,6 +517,7 @@ public:
     virtual int get_stream_caster_gb28181_sip_listen(SrsConfDirective* conf);
     virtual bool get_stream_caster_gb28181_sip_invite_port_fixed(SrsConfDirective* conf);
     virtual bool get_stream_caster_gb28181_auto_create_channel(SrsConfDirective* conf);
+    virtual srs_utime_t get_stream_caster_gb28181_sip_query_catalog_interval(SrsConfDirective* conf);
 
 // rtc section
 public:
diff --git a/trunk/src/app/srs_app_gb28181.cpp b/trunk/src/app/srs_app_gb28181.cpp
index fe3fa90da..acea9f166 100644
--- a/trunk/src/app/srs_app_gb28181.cpp
+++ b/trunk/src/app/srs_app_gb28181.cpp
@@ -268,7 +268,7 @@ srs_error_t SrsGb28181PsRtpProcessor::on_udp_packet(const sockaddr* from, const
         }
 
         if (pprint->can_print()) {
-            srs_trace("<- " SRS_CONSTS_LOG_STREAM_CASTER " gb28181: client_id %s, peer(%s, %d) ps rtp packet %dB, age=%d, vt=%d/%u, sts=%u/%u/%#x, paylod=%dB",
+            srs_trace("<- " SRS_CONSTS_LOG_GB28181_CASTER " gb28181: client_id %s, peer(%s, %d) ps rtp packet %dB, age=%d, vt=%d/%u, sts=%u/%u/%#x, paylod=%dB",
                         channel_id.c_str(),  address_string, peer_port, nb_buf, pprint->age(), pkt.version, 
                         pkt.payload_type, pkt.sequence_number, pkt.timestamp, pkt.ssrc,
                         pkt.payload->length()
@@ -312,7 +312,12 @@ srs_error_t SrsGb28181PsRtpProcessor::on_udp_packet(const sockaddr* from, const
                 channel.set_channel_id(tmp_id);
                 channel.set_port_mode(RTP_PORT_MODE_FIXED);
                 channel.set_ssrc(pkt.ssrc);
-                _srs_gb28181->create_stream_channel(&channel);
+              
+                srs_error_t err2 = srs_success;
+                if ((err2 = _srs_gb28181->create_stream_channel(&channel)) != srs_success){
+                    srs_warn("gb28181: RtpProcessor create stream channel error %s", srs_error_desc(err2).c_str());
+                    srs_error_reset(err2);
+                };
 
                 muxer = _srs_gb28181->fetch_rtmpmuxer(tmp_id);
             }
@@ -324,7 +329,7 @@ srs_error_t SrsGb28181PsRtpProcessor::on_udp_packet(const sockaddr* from, const
                 muxer->set_channel_peer_ip(address_string);
                 //not the first peer port's non processing
                 if (muxer->channel_peer_port() != peer_port){
-                    srs_warn("<- " SRS_CONSTS_LOG_STREAM_CASTER " gb28181: client_id %s, ssrc=%#x, first peer_port=%d cur peer_port=%d",
+                    srs_warn("<- " SRS_CONSTS_LOG_GB28181_CASTER " gb28181: client_id %s, ssrc=%#x, first peer_port=%d cur peer_port=%d",
                         muxer->get_channel_id().c_str(), pkt.ssrc, muxer->channel_peer_port(), peer_port);
                     srs_freep(key->second);
                 }else {
@@ -357,6 +362,7 @@ SrsPsStreamDemixer::SrsPsStreamDemixer(ISrsPsStreamHander *h, std::string id, bo
     audio_enable = a;
     wait_first_keyframe = k;
     channel_id = id;
+    first_keyframe_flag = false;
 }
 
 SrsPsStreamDemixer::~SrsPsStreamDemixer()
@@ -404,7 +410,6 @@ int64_t  SrsPsStreamDemixer::parse_ps_timestamp(const uint8_t* p)
 srs_error_t SrsPsStreamDemixer::on_ps_stream(char* ps_data, int ps_size, uint32_t timestamp, uint32_t ssrc)
 {
     srs_error_t err = srs_success;
-    
     int complete_len = 0;
     int incomplete_len = ps_size;
     char *next_ps_pack = ps_data;
@@ -589,8 +594,10 @@ srs_error_t SrsPsStreamDemixer::on_ps_stream(char* ps_data, int ps_size, uint32_
                 //ts=1000 seq=4 mark=true payload= audio
                 incomplete_len = ps_size - complete_len; 
                 complete_len = complete_len + incomplete_len;
+                
             }
 
+            first_keyframe_flag = false;
             srs_trace("gb28181: client_id %s, unkonw ps data (%#x/%u) %02x %02x %02x %02x\n", 
                 channel_id.c_str(), ssrc, timestamp,  
                 next_ps_pack[0], next_ps_pack[1], next_ps_pack[2], next_ps_pack[3]);
@@ -599,7 +606,7 @@ srs_error_t SrsPsStreamDemixer::on_ps_stream(char* ps_data, int ps_size, uint32_
     }
 
     if (complete_len != ps_size){
-         srs_trace("gb28181:  client_id %s decode ps packet error (%#x/%u)! ps_size=%d  complete=%d \n", 
+         srs_trace("gb28181: client_id %s decode ps packet error (%#x/%u)! ps_size=%d  complete=%d \n", 
                      channel_id.c_str(), ssrc, timestamp, ps_size, complete_len);
     }else if (hander && video_stream.length() && can_send_ps_av_packet()) {
          if ((err = hander->on_rtp_video(&video_stream, video_pts)) != srs_success) {
@@ -646,6 +653,7 @@ SrsGb28181Config::SrsGb28181Config(SrsConfDirective* c)
     sip_ack_timeout = _srs_config->get_stream_caster_gb28181_ack_timeout(c);
     sip_keepalive_timeout = _srs_config->get_stream_caster_gb28181_keepalive_timeout(c);
     sip_invite_port_fixed = _srs_config->get_stream_caster_gb28181_sip_invite_port_fixed(c);
+    sip_query_catalog_interval = _srs_config->get_stream_caster_gb28181_sip_query_catalog_interval(c);
 }
 
 SrsGb28181Config::~SrsGb28181Config()
@@ -653,7 +661,6 @@ SrsGb28181Config::~SrsGb28181Config()
    
 }
 
-
 //SrsGb28181RtmpMuxer gb28181 rtmp muxer, process ps stream to rtmp
 SrsGb28181RtmpMuxer::SrsGb28181RtmpMuxer(SrsGb28181Manger* c, std::string id, bool a, bool k)
 {
@@ -675,7 +682,8 @@ SrsGb28181RtmpMuxer::SrsGb28181RtmpMuxer(SrsGb28181Manger* c, std::string id, bo
     wait_ps_queue = srs_cond_new();
 
     stream_idle_timeout = -1;
-    recv_stream_time = 0;
+    recv_rtp_stream_time = 0;
+    send_rtmp_stream_time = 0;
 
     _rtmp_url = "";
 
@@ -768,7 +776,7 @@ std::string SrsGb28181RtmpMuxer::rtmp_url()
 
 srs_utime_t SrsGb28181RtmpMuxer::get_recv_stream_time()
 {
-    return recv_stream_time;
+    return recv_rtp_stream_time;
 }
 
 
@@ -785,7 +793,8 @@ void SrsGb28181RtmpMuxer::destroy()
 srs_error_t SrsGb28181RtmpMuxer::do_cycle()
 {
     srs_error_t err = srs_success;
-    recv_stream_time =  srs_get_system_time();
+    recv_rtp_stream_time =  srs_get_system_time();
+    send_rtmp_stream_time = srs_get_system_time();
 
     //consume ps stream, and check status
     while (true) {
@@ -819,7 +828,7 @@ srs_error_t SrsGb28181RtmpMuxer::do_cycle()
         }
         
         srs_utime_t now = srs_get_system_time();
-        srs_utime_t duration = now - recv_stream_time;
+        srs_utime_t duration = now - recv_rtp_stream_time;
 
         //if no RTP data is received within 2 seconds, 
         //the peer-port and peer-ip will be cleared and 
@@ -831,13 +840,28 @@ srs_error_t SrsGb28181RtmpMuxer::do_cycle()
             channel->set_rtp_peer_port(0);
             channel->set_rtp_peer_ip("");
         }
-        
+
         SrsGb28181Config config = gb28181_manger->get_gb28181_config();
         if (duration > config.rtp_idle_timeout){
             srs_trace("gb28181: client id=%s, stream idle timeout, stop!!!", channel_id.c_str());
             break;
         }
 
+        //RTMP connection is about to timeout without receiving any data., 
+        //waiting for the next time there is data automatically connected
+        //it is related to the following two parameter settings of the rtmp server
+        //the publish 1st packet timeout in srs_utime_t
+        //publish_1stpkt_timeout  default 20000ms
+        //the publish normal packet timeout in srs_utime_t
+        //publish_normal_timeout  default 5000ms
+        duration = now - send_rtmp_stream_time;
+        bool will_timeout = duration > (5 * SRS_UTIME_SECONDS);
+        if (will_timeout && sdk){
+            srs_warn("gb28181: client id=%s RTMP connection is about to time out without receiving any data",
+                channel_id.c_str());
+            rtmp_close();
+        }
+      
         if (ps_queue.empty()){
            srs_cond_timedwait(wait_ps_queue, 200 * SRS_UTIME_MILLISECONDS);
         }else {
@@ -862,7 +886,7 @@ void SrsGb28181RtmpMuxer::ps_packet_enqueue(SrsPsRtpPacket *pkt)
 {
     srs_assert(pkt);
    
-    recv_stream_time = srs_get_system_time();
+    recv_rtp_stream_time = srs_get_system_time();
 
     //prevent consumers from being unable to process data 
     //and accumulating in the queue
@@ -923,7 +947,7 @@ srs_error_t SrsGb28181RtmpMuxer::on_rtp_video(SrsSimpleStream *stream, int64_t f
     uint32_t pts = (uint32_t)(fpts / 90);
     srs_info("gb28181rtmpmuxer: on_rtp_video dts=%u", dts);
     
-    recv_stream_time = srs_get_system_time();
+
 
     SrsBuffer *avs = new SrsBuffer(stream->bytes(), stream->length());
     SrsAutoFree(SrsBuffer, avs);
@@ -1010,8 +1034,6 @@ srs_error_t SrsGb28181RtmpMuxer::on_rtp_audio(SrsSimpleStream* stream, int64_t f
         return srs_error_wrap(err, "jitter");
     }
     
-    recv_stream_time = srs_get_system_time();
-
     uint32_t dts = (uint32_t)(fdts / 90);
 
     // send each frame.
@@ -1167,6 +1189,8 @@ srs_error_t SrsGb28181RtmpMuxer::rtmp_write_packet(char type, uint32_t timestamp
     
     SrsSharedPtrMessage* msg = NULL;
     
+    send_rtmp_stream_time = srs_get_system_time();
+
     if ((err = srs_rtmp_create_msg(type, timestamp, data, size, sdk->sid(), &msg)) != srs_success) {
         return srs_error_wrap(err, "create message");
     }
@@ -1197,8 +1221,9 @@ srs_error_t SrsGb28181RtmpMuxer::connect()
     srs_utime_t cto = SRS_CONSTS_RTMP_TIMEOUT;
     srs_utime_t sto = SRS_CONSTS_RTMP_PULSE;
     sdk = new SrsSimpleRtmpClient(url, cto, sto);
-    
+  
     srs_trace("gb28181: rtmp connect url=%s", url.c_str());
+
     if ((err = sdk->connect()) != srs_success) {
         close();
         return srs_error_wrap(err, "connect %s failed, cto=%dms, sto=%dms.", url.c_str(), srsu2msi(cto), srsu2msi(sto));
@@ -1368,8 +1393,8 @@ uint32_t SrsGb28181Manger::generate_ssrc(std::string id)
 {
     srand(uint(time(0)));
     // TODO: SSRC rules can be customized,
-    //gb28281 live ssrc max value 0999999999(3B9AC9FF)  
-    //gb28281 vod ssrc max value 1999999999(773593FF)
+    //gb28181 live ssrc max value 0999999999(3B9AC9FF)  
+    //gb28181 vod ssrc max value 1999999999(773593FF)
     uint8_t  index = uint8_t(rand() % (0x0F - 0x01 + 1) + 0x01);
     uint32_t ssrc = 0x2FFFF00 & (hash_code(id) << 8) | index;
     //uint32_t ssrc = 0x00FFFFFF & (hash_code(id));
@@ -1527,8 +1552,9 @@ void SrsGb28181Manger::stop_rtp_listen(std::string id)
 }
 
 //api
-uint32_t SrsGb28181Manger::create_stream_channel(SrsGb28181StreamChannel *channel)
+srs_error_t SrsGb28181Manger::create_stream_channel(SrsGb28181StreamChannel *channel)
 {
+    srs_error_t err = srs_success;
     srs_assert(channel);
 
     std::string id = channel->get_channel_id();
@@ -1539,15 +1565,14 @@ uint32_t SrsGb28181Manger::create_stream_channel(SrsGb28181StreamChannel *channe
        SrsGb28181StreamChannel s = muxer->get_channel();
        channel->copy(&s);
        //return ERROR_GB28181_SESSION_IS_EXIST;
-       return ERROR_SUCCESS;
+       return err;
     }
 
     //create on rtmp muxer, gb28181 stream to rtmp
-    srs_error_t err = srs_success;
+   
     if ((err = fetch_or_create_rtmpmuxer(id, &muxer)) != srs_success){
         srs_warn("gb28181: create rtmp muxer error, %s", srs_error_desc(err).c_str());
-        srs_freep(err);
-        return ERROR_GB28181_CREATER_RTMPMUXER_FAILED;
+        return err;
     }
 
     //Start RTP listening port, receive gb28181 stream, 
@@ -1564,21 +1589,19 @@ uint32_t SrsGb28181Manger::create_stream_channel(SrsGb28181StreamChannel *channe
     if (port_mode == RTP_PORT_MODE_RANDOM){
         alloc_port(&rtp_port);
         if (rtp_port <= 0){
-           return ERROR_GB28181_RTP_PORT_FULL;
+           return srs_error_new(ERROR_GB28181_RTP_PORT_FULL, "gb28181: rtp port full");
         }
-        srs_error_t err = srs_success;
+     
         if ((err = start_ps_rtp_listen(id, rtp_port)) != srs_success){
-            srs_warn("gb28181: start ps rtp listen error, %s", srs_error_desc(err).c_str());
-            srs_freep(err);
             free_port(rtp_port, rtp_port + 1);
-            return ERROR_GB28181_CREATER_RTMPMUXER_FAILED;
+            return  err;
         }
     }
     else if(port_mode == RTP_PORT_MODE_FIXED) {
         rtp_port = config->rtp_mux_port;
     }
     else{
-        return ERROR_GB28181_PORT_MODE_INVALID;
+        return srs_error_new(ERROR_GB28181_PORT_MODE_INVALID, "gb28181: port mode invalid");
     }
 
     uint32_t ssrc = channel->get_ssrc();
@@ -1653,32 +1676,36 @@ uint32_t SrsGb28181Manger::create_stream_channel(SrsGb28181StreamChannel *channe
 
     muxer->copy_channel(channel);
 
-    return ERROR_SUCCESS;
+    return err;
 }
 
-uint32_t SrsGb28181Manger::delete_stream_channel(std::string id)
+srs_error_t SrsGb28181Manger::delete_stream_channel(std::string id)
 {
+    srs_error_t err = srs_success;
+
     //notify the device to stop streaming 
     //if an internal sip service controlled channel
-    notify_sip_bye(id);
+    notify_sip_bye(id, id);
 
     SrsGb28181RtmpMuxer *muxer = fetch_rtmpmuxer(id);
     if (muxer){
         stop_rtp_listen(id);
         muxer->stop();
-       return ERROR_SUCCESS;
+       return err;
     }else {
-       return ERROR_GB28181_SESSION_IS_NOTEXIST;
+       return srs_error_new(ERROR_GB28181_SESSION_IS_NOTEXIST, "stream channel is not exists");
     }
 }
 
 
-uint32_t SrsGb28181Manger::queue_stream_channel(std::string id, SrsJsonArray* arr)
+srs_error_t SrsGb28181Manger::query_stream_channel(std::string id, SrsJsonArray* arr)
 {
+    srs_error_t err = srs_success;
+
     if (!id.empty()){
         SrsGb28181RtmpMuxer *muxer = fetch_rtmpmuxer(id);
         if (!muxer){
-            return ERROR_GB28181_SESSION_IS_NOTEXIST;
+            return srs_error_new(ERROR_GB28181_SESSION_IS_NOTEXIST, "stream channel not exists");
         }
         SrsJsonObject* obj = SrsJsonAny::object();
         arr->append(obj);
@@ -1693,27 +1720,30 @@ uint32_t SrsGb28181Manger::queue_stream_channel(std::string id, SrsJsonArray* ar
         }
     }
 
-    return ERROR_SUCCESS;
+    return err;
 }
 
-uint32_t SrsGb28181Manger::notify_sip_invite(std::string id, std::string ip, int port, uint32_t ssrc)
+srs_error_t SrsGb28181Manger::notify_sip_invite(std::string id, std::string ip, int port, uint32_t ssrc, std::string chid)
 {
+    srs_error_t err = srs_success;
+    
     if (!sip_service){
-        return ERROR_GB28181_SIP_NOT_RUN;
+        return srs_error_new(ERROR_GB28181_SIP_NOT_RUN, "sip not run");
     }
    
     //if RTMP Muxer does not exist, you need to create
-    SrsGb28181RtmpMuxer *muxer = fetch_rtmpmuxer(id);
+    std::string key = id+"@"+chid;
+    SrsGb28181RtmpMuxer *muxer = fetch_rtmpmuxer(key);
    
     if (!muxer){
         //if there is an invalid parameter, the channel will be created automatically
         if (ip.empty() || port == 0 || ssrc == 0){
              //channel not exist
             SrsGb28181StreamChannel channel;
-            channel.set_channel_id(id);
-            int code = create_stream_channel(&channel);
-            if (code != ERROR_SUCCESS){
-                return code;
+            channel.set_channel_id(key);
+            err =  create_stream_channel(&channel);
+            if (err != srs_success){
+                return err;
             }
 
             ip = channel.get_ip();
@@ -1730,30 +1760,36 @@ uint32_t SrsGb28181Manger::notify_sip_invite(std::string id, std::string ip, int
 
     SrsSipRequest req;
     req.sip_auth_id = id;
-    return sip_service->send_invite(&req, ip, port, ssrc);
-
+    return sip_service->send_invite(&req, ip, port, ssrc, chid);
 }
 
-uint32_t SrsGb28181Manger::notify_sip_bye(std::string id)
+srs_error_t SrsGb28181Manger::notify_sip_bye(std::string id, std::string chid)
 {
     if (!sip_service){
-        return ERROR_GB28181_SIP_NOT_RUN;
-    }
-
-    SrsGb28181RtmpMuxer *muxer = fetch_rtmpmuxer(id);
-    if (muxer){
-        muxer->rtmp_close();
+        return srs_error_new(ERROR_GB28181_SIP_NOT_RUN, "sip not run");
     }
 
     SrsSipRequest req;
     req.sip_auth_id = id;
-    return sip_service->send_bye(&req);
+    return sip_service->send_bye(&req, chid);
 }
 
-uint32_t SrsGb28181Manger::notify_sip_raw_data(std::string id, std::string data)
+srs_error_t SrsGb28181Manger::notify_sip_ptz(std::string id, std::string chid, std::string cmd, 
+            uint8_t speed,  int priority)
 {
     if (!sip_service){
-        return ERROR_GB28181_SIP_NOT_RUN;
+        return srs_error_new(ERROR_GB28181_SIP_NOT_RUN, "sip not run");
+    }
+
+    SrsSipRequest req;
+    req.sip_auth_id = id;
+    return sip_service->send_ptz(&req, chid, cmd, speed, priority);
+}
+
+srs_error_t SrsGb28181Manger::notify_sip_raw_data(std::string id, std::string data)
+{
+    if (!sip_service){
+        return srs_error_new(ERROR_GB28181_SIP_NOT_RUN, "sip not run");
     }
 
     SrsSipRequest req;
@@ -1762,13 +1798,31 @@ uint32_t SrsGb28181Manger::notify_sip_raw_data(std::string id, std::string data)
 
 }
 
-uint32_t SrsGb28181Manger::notify_sip_unregister(std::string id)
+srs_error_t SrsGb28181Manger::notify_sip_unregister(std::string id)
 {
     if (!sip_service){
-        return ERROR_GB28181_SIP_NOT_RUN;
+        return srs_error_new(ERROR_GB28181_SIP_NOT_RUN, "sip not run");
+    }
+    sip_service->remove_session(id);
+    return delete_stream_channel(id);
+}
+
+srs_error_t SrsGb28181Manger::notify_sip_query_catalog(std::string id)
+{
+    if (!sip_service){
+        return srs_error_new(ERROR_GB28181_SIP_NOT_RUN, "sip not run");
     }
 
-    delete_stream_channel(id);
-    sip_service->remove_session(id);
-    return ERROR_SUCCESS;
+    SrsSipRequest req;
+    req.sip_auth_id = id;
+    return sip_service->send_query_catalog(&req);
 }
+
+srs_error_t SrsGb28181Manger::query_sip_session(std::string id, SrsJsonArray* arr)
+{
+    if (!sip_service){
+        return srs_error_new(ERROR_GB28181_SIP_NOT_RUN, "sip not run");
+    }
+    
+    return sip_service->query_sip_session(id, arr);
+}
\ No newline at end of file
diff --git a/trunk/src/app/srs_app_gb28181.hpp b/trunk/src/app/srs_app_gb28181.hpp
index a7cde0b85..9f551a26a 100644
--- a/trunk/src/app/srs_app_gb28181.hpp
+++ b/trunk/src/app/srs_app_gb28181.hpp
@@ -218,7 +218,8 @@ private:
     SrsPithyPrint* pprint;
     SrsGb28181StreamChannel *channel;
     int stream_idle_timeout;
-    srs_utime_t recv_stream_time;
+    srs_utime_t recv_rtp_stream_time;
+    srs_utime_t send_rtmp_stream_time;
 private:
     std::string channel_id;
     std::string _rtmp_url;
@@ -313,6 +314,7 @@ public:
     srs_utime_t sip_keepalive_timeout;
     bool sip_auto_play;
     bool sip_invite_port_fixed;
+    srs_utime_t sip_query_catalog_interval;
  
 public:
     SrsGb28181Config(SrsConfDirective* c);
@@ -392,9 +394,7 @@ private:
     std::map rtmpmuxers_ssrc;
     std::map rtmpmuxers;
     SrsCoroutineManager* manager;
-
     SrsGb28181SipService* sip_service;
-
 public:
     SrsGb28181Manger(SrsConfDirective* c);
     virtual ~SrsGb28181Manger();
@@ -413,14 +413,17 @@ public:
 
 public:
     //stream channel api
-    uint32_t create_stream_channel(SrsGb28181StreamChannel *channel);
-    uint32_t delete_stream_channel(std::string id);
-    uint32_t queue_stream_channel(std::string id, SrsJsonArray* arr);
+    srs_error_t create_stream_channel(SrsGb28181StreamChannel *channel);
+    srs_error_t delete_stream_channel(std::string id);
+    srs_error_t query_stream_channel(std::string id, SrsJsonArray* arr);
     //sip api
-    uint32_t notify_sip_invite(std::string id, std::string ip, int port, uint32_t ssrc);
-    uint32_t notify_sip_bye(std::string id);
-    uint32_t notify_sip_raw_data(std::string id, std::string data);
-    uint32_t notify_sip_unregister(std::string id);
+    srs_error_t notify_sip_invite(std::string id, std::string ip, int port, uint32_t ssrc, std::string chid);
+    srs_error_t notify_sip_bye(std::string id, std::string chid);
+    srs_error_t notify_sip_raw_data(std::string id, std::string data);
+    srs_error_t notify_sip_unregister(std::string id);
+    srs_error_t notify_sip_query_catalog(std::string id);
+    srs_error_t notify_sip_ptz(std::string id, std::string chid, std::string cmd, uint8_t speed, int priority);
+    srs_error_t query_sip_session(std::string id, SrsJsonArray* arr);
 
 private:
     void destroy();
diff --git a/trunk/src/app/srs_app_gb28181_sip.cpp b/trunk/src/app/srs_app_gb28181_sip.cpp
index 2c819ad17..169cd1fca 100644
--- a/trunk/src/app/srs_app_gb28181_sip.cpp
+++ b/trunk/src/app/srs_app_gb28181_sip.cpp
@@ -65,6 +65,18 @@ std::string srs_get_sip_session_status_str(SrsGb28181SipSessionStatusType status
     }
 }
 
+SrsGb28181Device::SrsGb28181Device()
+{
+    device_id = ""; 
+    invite_status = SrsGb28181SipSessionUnkonw;
+    invite_time = 0;
+    device_status = "";
+    
+}
+
+SrsGb28181Device::~SrsGb28181Device()
+{}
+
 SrsGb28181SipSession::SrsGb28181SipSession(SrsGb28181SipService *c, SrsSipRequest* r)
 {
     servcie = c;
@@ -82,15 +94,19 @@ SrsGb28181SipSession::SrsGb28181SipSession(SrsGb28181SipService *c, SrsSipReques
     _register_time = 0;
     _alive_time = 0;
     _invite_time = 0;
+    _query_catalog_time = 0;
   
     _peer_ip = "";
     _peer_port = 0;
 
     _fromlen = 0;
+    _sip_cseq = 100;
 }
 
 SrsGb28181SipSession::~SrsGb28181SipSession()
 {
+    destroy();
+
     srs_freep(req);
     srs_freep(trd);
     srs_freep(pprint);
@@ -107,12 +123,25 @@ srs_error_t SrsGb28181SipSession::serve()
     return err;
 }
 
+void SrsGb28181SipSession::destroy()
+{
+    //destory all device
+    std::map::iterator it;
+    for (it = _device_list.begin(); it != _device_list.end(); ++it) {
+        srs_freep(it->second);
+    }
+
+    _device_list.clear();
+}
+
 srs_error_t SrsGb28181SipSession::do_cycle()
 {
     srs_error_t err = srs_success;
     _register_time = srs_get_system_time();
     _alive_time = srs_get_system_time();
     _invite_time = srs_get_system_time();
+    //call it immediately after alive ok;
+    _query_catalog_time = 0;
   
     while (true) {
 
@@ -121,14 +150,82 @@ srs_error_t SrsGb28181SipSession::do_cycle()
         if ((err = trd->pull()) != srs_success) {
             return srs_error_wrap(err, "gb28181 sip session cycle");
         }
-
+        
+        SrsGb28181Config *config = servcie->get_config();
         srs_utime_t now = srs_get_system_time();
         srs_utime_t reg_duration = now - _register_time;
         srs_utime_t alive_duration = now - _alive_time;
-        srs_utime_t invite_duration = now - _invite_time;
-        SrsGb28181Config *config = servcie->get_config();
+        srs_utime_t query_duration = now - _query_catalog_time;
+
+        //send invite, play client av
+        //start ps rtp listen, recv ps stream
+        if (_register_status == SrsGb28181SipSessionRegisterOk &&
+            _alive_status == SrsGb28181SipSessionAliveOk)
+        {
+            std::map::iterator it;
+            for (it = _device_list.begin(); it != _device_list.end(); it++) {
+                SrsGb28181Device *device = it->second;
+                std::string chid = it->first;
+
+                //update device invite time
+                srs_utime_t invite_duration = 0;
+                if (device->invite_time != 0){
+                    invite_duration = srs_get_system_time() - device->invite_time;
+                }
+
+                //It is possible that the camera head keeps pushing and opening, 
+                //and the duration will be very large. It will take 1 day to update
+                if (invite_duration > 24 * SRS_UTIME_HOURS){
+                    device->invite_time = srs_get_system_time();
+                }
+
+                if (device->invite_status == SrsGb28181SipSessionTrying &&
+                    invite_duration > config->sip_ack_timeout){
+                    device->invite_status = SrsGb28181SipSessionUnkonw;
+                }
+
+                if (!config->sip_auto_play) continue;
+                
+                //offline or already invite device does not need to send invite
+                if (device->device_status != "ON" || 
+                    device->invite_status != SrsGb28181SipSessionUnkonw) continue;
+
+                SrsGb28181StreamChannel ch;
+               
+                ch.set_channel_id(_session_id + "@" + chid);
+                ch.set_ip(config->host);
+
+                if (config->sip_invite_port_fixed){
+                    ch.set_port_mode(RTP_PORT_MODE_FIXED);
+                }else {
+                    ch.set_port_mode(RTP_PORT_MODE_RANDOM);
+                }
+
+                //create stream channel, ready for recv device av stream
+                srs_error_t err = _srs_gb28181->create_stream_channel(&ch);
+
+                if ((err = _srs_gb28181->create_stream_channel(&ch)) == srs_success){
+                    SrsSipRequest req;
+                    req.sip_auth_id = _session_id;
+                   
+                    //send invite to device, req push av stream
+                    err = servcie->send_invite(&req, ch.get_ip(),
+                                ch.get_rtp_port(), ch.get_ssrc(), chid);
+                }
+
+                int code = srs_error_code(err);
+                if (err != srs_success){
+                    srs_error_reset(err);
+                }
+                                       
+                //the same device can't be sent too fast. the device can't handle it
+                srs_usleep(1*SRS_UTIME_SECONDS);
+               
+                srs_trace("gb28181: %s clients device=%s send invite code=%d", 
+                    _session_id.c_str(), chid.c_str(), code);
+            }//end for (it)
+        }//end if (config)
 
-        
         if (_register_status == SrsGb28181SipSessionRegisterOk &&
             reg_duration > _reg_expires){
             srs_trace("gb28181: sip session=%s register expire", _session_id.c_str());
@@ -142,29 +239,48 @@ srs_error_t SrsGb28181SipSession::do_cycle()
             break;
         }
 
-        if (_invite_status == SrsGb28181SipSessionTrying &&
-            invite_duration > config->sip_ack_timeout){
-                _invite_status == SrsGb28181SipSessionUnkonw;
+        //query device channel
+        if (_alive_status == SrsGb28181SipSessionAliveOk &&
+            query_duration >= config->sip_query_catalog_interval) {
+            SrsSipRequest req;
+            req.sip_auth_id = _session_id;
+            _query_catalog_time = srs_get_system_time();
+
+            srs_error_t err = servcie->send_query_catalog(&req);
+            if (err != srs_success){
+                srs_trace("gb28181: sip query catalog error %s",srs_error_desc(err).c_str());
+                srs_error_reset(err);
             }
 
-        if (pprint->can_print()){
-            srs_trace("gb28181: sip session=%s peer(%s, %d) status(%s,%s,%s) duration(%u,%u,%u)",
+            //print device status
+            srs_trace("gb28181: sip session=%s peer(%s, %d) status(%s,%s) duration(%u,%u)",
                 _session_id.c_str(), _peer_ip.c_str(), _peer_port, 
                 srs_get_sip_session_status_str(_register_status).c_str(),
                 srs_get_sip_session_status_str(_alive_status).c_str(),
-                srs_get_sip_session_status_str(_invite_status).c_str(),
                 (reg_duration / SRS_UTIME_SECONDS), 
-                (alive_duration / SRS_UTIME_SECONDS),
-                (invite_duration / SRS_UTIME_SECONDS));
+                (alive_duration / SRS_UTIME_SECONDS));
+     
+            std::map::iterator it;
+            for (it = _device_list.begin(); it != _device_list.end(); it++) {
+                SrsGb28181Device *device = it->second;
+                std::string chid = it->first;
             
-            //It is possible that the camera head keeps pushing and opening, 
-            //and the duration will be very large. It will take 1 day to update
-            if (invite_duration > 24 * SRS_UTIME_HOURS){
-                _invite_time = srs_get_system_time();
+                srs_utime_t invite_duration = srs_get_system_time() - device->invite_time;
+
+                if (device->invite_status != SrsGb28181SipSessionTrying &&
+                    device->invite_status != SrsGb28181SipSessionInviteOk){
+                        invite_duration = 0;
+                }
+
+                srs_trace("gb28181: sip session=%s device=%s status(%s, %s), duration(%u)",
+                    _session_id.c_str(), chid.c_str(), device->device_status.c_str(), 
+                    srs_get_sip_session_status_str(device->invite_status).c_str(),
+                    (invite_duration / SRS_UTIME_SECONDS));
             }
         }
-        srs_usleep(5* SRS_UTIME_SECONDS);
-    }
+
+        srs_usleep(1 * SRS_UTIME_SECONDS);
+    }//end while
     
     return err;
 }
@@ -191,6 +307,72 @@ srs_error_t SrsGb28181SipSession::cycle()
     return err;
 }
 
+void SrsGb28181SipSession::update_device_list(std::map lst)
+{
+    std::map::iterator it;
+    for (it = lst.begin(); it != lst.end(); ++it) {
+        std::string id = it->first;
+        std::string status = it->second;
+
+        if  (_device_list.find(id) == _device_list.end()){
+            SrsGb28181Device *device = new SrsGb28181Device();
+            device->device_id = id;
+            device->device_status = status;
+            device->invite_status = SrsGb28181SipSessionUnkonw;
+            device->invite_time = 0;
+            _device_list[id] = device;
+
+        }else {
+            SrsGb28181Device *device = _device_list[id];
+            device->device_status = status;
+        }
+
+        // srs_trace("gb28181: sip session %s, deviceid=%s status=(%s,%s)", 
+        //     _session_id.c_str(), id.c_str(), status.c_str(),  
+        //     srs_get_sip_session_status_str(device.invite_status).c_str());
+    }
+}
+
+SrsGb28181Device* SrsGb28181SipSession::get_device_info(std::string chid)
+{
+    if (_device_list.find(chid) != _device_list.end()){
+        return _device_list[chid];
+    }
+    return NULL;
+}
+
+void SrsGb28181SipSession::dumps(SrsJsonObject* obj)
+{
+    obj->set("id", SrsJsonAny::str(_session_id.c_str()));
+    obj->set("device_sumnum", SrsJsonAny::integer(_device_list.size()));
+    
+    SrsJsonArray* arr = SrsJsonAny::array();
+    obj->set("devices", arr);
+    std::map::iterator it;
+    for (it = _device_list.begin(); it != _device_list.end(); ++it) {
+        SrsGb28181Device *device = it->second;
+        SrsJsonObject* obj = SrsJsonAny::object();
+        arr->append(obj);
+        obj->set("device_id", SrsJsonAny::str(device->device_id.c_str()));
+        obj->set("device_status", SrsJsonAny::str(device->device_status.c_str()));
+        obj->set("invite_status", SrsJsonAny::str(srs_get_sip_session_status_str(device->invite_status).c_str()));
+        obj->set("invite_time", SrsJsonAny::integer(device->invite_time/SRS_UTIME_SECONDS));
+    }
+
+    //obj->set("rtmp_port", SrsJsonAny::integer(rtmp_port));
+    // obj->set("app", SrsJsonAny::str(app.c_str()));
+    // obj->set("stream", SrsJsonAny::str(stream.c_str()));
+    // obj->set("rtmp_url", SrsJsonAny::str(rtmp_url.c_str()));
+   
+    // obj->set("ssrc", SrsJsonAny::integer(ssrc));
+    // obj->set("rtp_port", SrsJsonAny::integer(rtp_port));
+    // obj->set("port_mode", SrsJsonAny::str(port_mode.c_str()));
+    // obj->set("rtp_peer_port", SrsJsonAny::integer(rtp_peer_port));
+    // obj->set("rtp_peer_ip", SrsJsonAny::str(rtp_peer_ip.c_str()));
+    // obj->set("recv_time", SrsJsonAny::integer(recv_time/SRS_UTIME_SECONDS));
+    // obj->set("recv_time_str", SrsJsonAny::str(recv_time_str.c_str()));
+}
+
 //gb28181 sip Service
 SrsGb28181SipService::SrsGb28181SipService(SrsConfDirective* c)
 {
@@ -232,8 +414,9 @@ srs_error_t SrsGb28181SipService::on_udp_packet(const sockaddr* from, const int
     }
     std::string peer_ip = std::string(address_string);
     int peer_port = atoi(port_string);
-    
-    srs_error_t err = on_udp_sip(peer_ip, peer_port, buf, nb_buf, (sockaddr*)from, fromlen);
+
+    std::string recv_msg(buf, nb_buf);
+    srs_error_t err = on_udp_sip(peer_ip, peer_port, recv_msg, (sockaddr*)from, fromlen);
     if (err != srs_success) {
         return srs_error_wrap(err, "process udp");
     }
@@ -241,20 +424,23 @@ srs_error_t SrsGb28181SipService::on_udp_packet(const sockaddr* from, const int
 }
 
 srs_error_t SrsGb28181SipService::on_udp_sip(string peer_ip, int peer_port, 
-        char* buf, int nb_buf, sockaddr* from, const int fromlen)
+        std::string recv_msg, sockaddr* from, const int fromlen)
 {
     srs_error_t err = srs_success;
 
-    srs_info("gb28181: request peer(%s, %d) nbbuf=%d", peer_ip.c_str(), peer_port, nb_buf);
-    srs_info("gb28181: request recv message=%s", buf);
+    int recv_len = recv_msg.size();
+    char* recv_data = (char*)recv_msg.c_str();
+
+    srs_info("gb28181: request peer(%s, %d) nbbuf=%d", peer_ip.c_str(), peer_port, recv_len);
+    srs_info("gb28181: request recv message=%s", recv_data);
     
-    if (nb_buf < 10) {
+    if (recv_len < 10) {
         return err;
     }
 
     SrsSipRequest* req = NULL;
 
-    if ((err = sip->parse_request(&req, buf, nb_buf)) != srs_success) {
+    if ((err = sip->parse_request(&req, recv_data, recv_len)) != srs_success) {
         return srs_error_wrap(err, "parse sip request");
     }
  
@@ -266,6 +452,10 @@ srs_error_t SrsGb28181SipService::on_udp_sip(string peer_ip, int peer_port,
 
     if (req->is_register()) {
         std::vector serial =  srs_string_split(srs_string_replace(req->uri,"sip:", ""), "@");
+        if (serial.empty()){
+            return srs_error_new(ERROR_GB28181_SIP_PRASE_FAILED, "register string split");
+        }
+
         if (serial.at(0) != config->sip_serial){
             srs_warn("gb28181: client:%s request serial and server serial inconformity(%s:%s)",
              req->sip_auth_id.c_str(), serial.at(0).c_str(), config->sip_serial.c_str());
@@ -273,7 +463,7 @@ srs_error_t SrsGb28181SipService::on_udp_sip(string peer_ip, int peer_port,
         }
 
         srs_trace("gb28181: request client id=%s peer(%s, %d)", req->sip_auth_id.c_str(), peer_ip.c_str(), peer_port);
-        srs_trace("gb28181: request %s method=%s, uri=%s, version=%s  expires=%d", 
+        srs_trace("gb28181: %s method=%s, uri=%s, version=%s expires=%d", 
             req->get_cmdtype_str().c_str(), req->method.c_str(),
             req->uri.c_str(), req->version.c_str(), req->expires);
 
@@ -283,7 +473,8 @@ srs_error_t SrsGb28181SipService::on_udp_sip(string peer_ip, int peer_port,
             return err;
         }
         srs_assert(sip_session);
-        
+        sip_session->set_request(req);
+
         send_status(req, from, fromlen);
         sip_session->set_register_status(SrsGb28181SipSessionRegisterOk);
         sip_session->set_register_time(srs_get_system_time());
@@ -292,71 +483,50 @@ srs_error_t SrsGb28181SipService::on_udp_sip(string peer_ip, int peer_port,
         sip_session->set_sockaddr_len(fromlen);
         sip_session->set_peer_ip(peer_ip);
         sip_session->set_peer_port(peer_port);
+       
     }else if (req->is_message()) {
         SrsGb28181SipSession* sip_session = fetch(session_id);
+         
+        if (!sip_session){
+            sip_session = fetch_session_by_callid(req->call_id);
+        }
+     
         if (!sip_session || sip_session->register_status() == SrsGb28181SipSessionUnkonw){
             srs_trace("gb28181: %s client not registered", req->sip_auth_id.c_str());
             return err;
         }
        
         //reponse status 
-        send_status(req, from, fromlen);
-        //sip_session->set_register_status(SrsGb28181SipSessionRegisterOk);
-        //sip_session->set_register_time(srs_get_system_time());
-        sip_session->set_alive_status(SrsGb28181SipSessionAliveOk);
-        sip_session->set_alive_time(srs_get_system_time());
-        sip_session->set_sockaddr((sockaddr)*from);
-        sip_session->set_sockaddr_len(fromlen);
-        sip_session->set_peer_port(peer_port);
-        sip_session->set_peer_ip(peer_ip);
-
-        //send invite, play client av
-        //start ps rtp listen, recv ps stream
-        if (config->sip_auto_play && sip_session->register_status() == SrsGb28181SipSessionRegisterOk &&
-            sip_session->alive_status() == SrsGb28181SipSessionAliveOk &&
-            sip_session->invite_status() == SrsGb28181SipSessionUnkonw)
-        {
-            srs_trace("gb28181: request client id=%s, peer(%s, %d)", req->sip_auth_id.c_str(), 
-                        peer_ip.c_str(), peer_port);
-            srs_trace("gb28181: request %s method=%s, uri=%s, version=%s ", req->get_cmdtype_str().c_str(), 
-                        req->method.c_str(), req->uri.c_str(), req->version.c_str());
-
-            SrsGb28181StreamChannel ch;
-            ch.set_channel_id(session_id);
-            ch.set_ip(config->host);
-            if (config->sip_invite_port_fixed){
-               ch.set_port_mode(RTP_PORT_MODE_FIXED);
-            }else {
-               ch.set_port_mode(RTP_PORT_MODE_RANDOM);
+        if (req->cmdtype == SrsSipCmdRequest){
+            send_status(req, from, fromlen);
+            sip_session->set_alive_status(SrsGb28181SipSessionAliveOk);
+            sip_session->set_alive_time(srs_get_system_time());
+            sip_session->set_sockaddr((sockaddr)*from);
+            sip_session->set_sockaddr_len(fromlen);
+            sip_session->set_peer_port(peer_port);
+            sip_session->set_peer_ip(peer_ip);
+            
+            //update device list
+            if (req->device_list_map.size() > 0){
+                sip_session->update_device_list(req->device_list_map);
             }
-
-            int code = _srs_gb28181->create_stream_channel(&ch);
-            if (code == ERROR_SUCCESS){
-                code = send_invite(req, ch.get_ip(),
-                        ch.get_rtp_port(), ch.get_ssrc());
-            }
-
-            if (code == ERROR_SUCCESS){
-                sip_session->set_invite_status(SrsGb28181SipSessionTrying);
-                sip_session->set_invite_time(srs_get_system_time());
-            }
-          
         }
+       
     }else if (req->is_invite()) {
-        SrsGb28181SipSession* sip_session = fetch(session_id);
+        SrsGb28181SipSession* sip_session = fetch_session_by_callid(req->call_id);
 
         srs_trace("gb28181: request client id=%s, peer(%s, %d)", req->sip_auth_id.c_str(), 
                         peer_ip.c_str(), peer_port);
-        srs_trace("gb28181: request %s method=%s, uri=%s, version=%s ", 
+        srs_trace("gb28181: %s method=%s, uri=%s, version=%s ", 
             req->get_cmdtype_str().c_str(), req->method.c_str(), req->uri.c_str(), req->version.c_str());
        
         if (!sip_session){
-            srs_trace("gb28181: %s client not registered", req->sip_auth_id.c_str());
+            srs_trace("gb28181: call_id %s not map %s client ", req->call_id.c_str(), req->sip_auth_id.c_str());
             return err;
         }
         
-        sip_session->set_sockaddr((sockaddr)*from);
-        sip_session->set_sockaddr_len(fromlen);
+        // sip_session->set_sockaddr((sockaddr)*from);
+        // sip_session->set_sockaddr_len(fromlen);
 
         if (sip_session->register_status() == SrsGb28181SipSessionUnkonw ||
             sip_session->alive_status() == SrsGb28181SipSessionUnkonw) {
@@ -364,37 +534,72 @@ srs_error_t SrsGb28181SipService::on_udp_sip(string peer_ip, int peer_port,
             return err;
         }
         
-        if (req->cmdtype == SrsSipCmdRespone && req->status == "200") {
+        if (req->cmdtype == SrsSipCmdRespone){
             srs_trace("gb28181: INVITE response %s client status=%s", req->sip_auth_id.c_str(), req->status.c_str());
-            send_ack(req, from, fromlen);
-            sip_session->set_invite_status(SrsGb28181SipSessionInviteOk);
-            sip_session->set_invite_time(srs_get_system_time());
-            //Record tag and branch, which are required by the 'bye' command,
-            sip_session->set_request(req);
-        }else{
-            sip_session->set_invite_status(SrsGb28181SipSessionUnkonw);
-            sip_session->set_invite_time(srs_get_system_time());
+
+            if (req->status == "200") {
+                send_ack(req, from, fromlen);
+                SrsGb28181Device *device = sip_session->get_device_info(req->sip_auth_id);
+                if (device){
+                    device->invite_status = SrsGb28181SipSessionInviteOk;
+                    device->req_inivate.copy(req);
+                    device->invite_time = srs_get_system_time();
+                }
+            }else if (req->status == "100") {
+                //send_ack(req, from, fromlen);
+                SrsGb28181Device *device = sip_session->get_device_info(req->sip_auth_id);
+                if (device){
+                    device->req_inivate.copy(req);
+                    device->invite_status = SrsGb28181SipSessionTrying;
+                    device->invite_time = srs_get_system_time();
+                }
+            }else{
+                SrsGb28181Device *device = sip_session->get_device_info(req->sip_auth_id);
+                if (device){
+                    device->req_inivate.copy(req);
+                    device->invite_status = SrsGb28181SipSessionUnkonw;
+                    device->invite_time = srs_get_system_time();
+                }
+            }
         }
+       
     }else if (req->is_bye()) {
         srs_trace("gb28181: request client id=%s, peer(%s, %d)", req->sip_auth_id.c_str(), 
                         peer_ip.c_str(), peer_port);
-        srs_trace("gb28181: request %s method=%s, uri=%s, version=%s ", 
+        srs_trace("gb28181: %s method=%s, uri=%s, version=%s ", 
             req->get_cmdtype_str().c_str(), req->method.c_str(), req->uri.c_str(), req->version.c_str());
       
-        SrsGb28181SipSession* sip_session = fetch(session_id);
         send_status(req, from, fromlen);
 
+        SrsGb28181SipSession* sip_session = fetch_session_by_callid(req->call_id);
+        srs_trace("gb28181: request client id=%s, peer(%s, %d)", req->sip_auth_id.c_str(), 
+                        peer_ip.c_str(), peer_port);
+        srs_trace("gb28181: %s method=%s, uri=%s, version=%s ", 
+            req->get_cmdtype_str().c_str(), req->method.c_str(), req->uri.c_str(), req->version.c_str());
+       
         if (!sip_session){
-            srs_trace("gb28181: %s client not registered", req->sip_auth_id.c_str());
+            srs_trace("gb28181: call_id %s not map %s client ", req->call_id.c_str(), req->sip_auth_id.c_str());
             return err;
         }
 
-        sip_session->set_sockaddr((sockaddr)*from);
-        sip_session->set_sockaddr_len(fromlen);
-       
-        sip_session->set_invite_status(SrsGb28181SipSessionBye);
-        sip_session->set_invite_time(srs_get_system_time());
-   
+        if (req->cmdtype == SrsSipCmdRespone){
+            srs_trace("gb28181: BYE  %s client status=%s", req->sip_auth_id.c_str(), req->status.c_str());
+
+            if (req->status == "200") {
+                SrsGb28181Device *device = sip_session->get_device_info(req->sip_auth_id);
+                if (device){
+                    device->invite_status = SrsGb28181SipSessionBye;
+                    device->invite_time = srs_get_system_time();
+                }
+            }else {
+                //TODO:fixme
+                SrsGb28181Device *device = sip_session->get_device_info(req->sip_auth_id);
+                if (device){
+                    device->invite_status = SrsGb28181SipSessionBye;
+                    device->invite_time = srs_get_system_time();
+                }
+            }
+        }
     }else{
         srs_trace("gb28181: ingor request method=%s", req->method.c_str());
     }
@@ -427,6 +632,7 @@ int SrsGb28181SipService::send_ack(SrsSipRequest *req, sockaddr *f, int l)
     req->host_port = config->sip_port;
     req->realm = config->sip_realm;
     req->serial = config->sip_serial;
+    req->chid = req->sip_auth_id;
 
     sip->req_ack(ss, req);
     return send_message(f, l, ss);
@@ -448,64 +654,97 @@ int SrsGb28181SipService::send_status(SrsSipRequest *req,  sockaddr *f, int l)
 }
 
 
-int  SrsGb28181SipService::send_invite(SrsSipRequest *req,  string ip, int port, uint32_t ssrc)
+srs_error_t  SrsGb28181SipService::send_invite(SrsSipRequest *req,  string ip, int port, uint32_t ssrc, std::string chid)
 {
+    srs_error_t err = srs_success;
+
     srs_assert(req);
 
     SrsGb28181SipSession *sip_session = fetch(req->sip_auth_id);
 
     if (!sip_session){
-        return ERROR_GB28181_SESSION_IS_NOTEXIST;
+        return srs_error_new(ERROR_GB28181_SESSION_IS_NOTEXIST, "sip session not exist");
     }
     
     //if you are inviting or succeed in invite, 
     //you cannot invite again. you need to 'bye' and try again
-    if (sip_session->invite_status() == SrsGb28181SipSessionTrying ||
-        sip_session->invite_status() == SrsGb28181SipSessionInviteOk){
-        return ERROR_GB28181_SIP_IS_INVITING;   
+    SrsGb28181Device *device = sip_session->get_device_info(chid);
+    if (!device || device->device_status != "ON"){
+        return srs_error_new(ERROR_GB28181_SIP_CH_OFFLINE, "sip device channel offline");
     }
-   
+
+    if (device->invite_status  == SrsGb28181SipSessionTrying ||
+        device->invite_status  == SrsGb28181SipSessionInviteOk){
+        return srs_error_new(ERROR_GB28181_SIP_IS_INVITING, "sip device channel inviting");   
+    }
+
     req->host =  config->host;
     req->host_port = config->sip_port;
     req->realm = config->sip_realm;
     req->serial = config->sip_serial;
+    req->chid = chid;
+    req->seq = sip_session->sip_cseq();
 
+    SrsSipRequest register_req = sip_session->request();
+    req->to_realm = register_req.to_realm;
+    req->from_realm = config->sip_realm;
+   
     std::stringstream ss;
     sip->req_invite(ss, req, ip, port, ssrc);
-
+   
     sockaddr addr = sip_session->sockaddr_from();
 
     if (send_message(&addr, sip_session->sockaddr_fromlen(), ss) <= 0)
     {
-        return ERROR_GB28181_SIP_INVITE_FAILED;
+        return srs_error_new(ERROR_GB28181_SIP_INVITE_FAILED, "sip device invite failed");
     }
 
-    sip_session->set_invite_status(SrsGb28181SipSessionTrying);
+    //prame branch, from_tag, to_tag, call_id, 
+    //The parameter of 'bye' must be the same as 'invite'
+    device->req_inivate.copy(req);
+    device->invite_time = srs_get_system_time();
+    device->invite_status = SrsGb28181SipSessionTrying;
 
-    return ERROR_SUCCESS;
+    //call_id map sip_session
+    sip_session_map_by_callid(sip_session, req->call_id);
 
+    return err;
 }
 
-int SrsGb28181SipService::send_bye(SrsSipRequest *req)
+srs_error_t SrsGb28181SipService::send_bye(SrsSipRequest *req, std::string chid)
 {
+    srs_error_t err = srs_success;
+
     srs_assert(req);
 
     SrsGb28181SipSession *sip_session = fetch(req->sip_auth_id);
 
     if (!sip_session){
-        return ERROR_GB28181_SESSION_IS_NOTEXIST;
+        return srs_error_new(ERROR_GB28181_SESSION_IS_NOTEXIST, "sip session not exist");
     }
 
+    SrsGb28181Device *device = sip_session->get_device_info(chid);
+    if (!device){
+        return srs_error_new(ERROR_GB28181_SIP_CH_NOTEXIST, "sip device channel not exist");
+    }
+   
     //prame branch, from_tag, to_tag, call_id, 
     //The parameter of 'bye' must be the same as 'invite'
-    SrsSipRequest r = sip_session->request();
-    req->copy(&r);
+    //SrsSipRequest r = sip_session->request();
 
-    req->host =  config->host;
+    req->copy(&device->req_inivate);
+
+    req->host = config->host;
     req->host_port = config->sip_port;
     req->realm = config->sip_realm;
     req->serial = config->sip_serial;
-
+    req->chid = chid;
+    req->seq = sip_session->sip_cseq();
+    
+    SrsSipRequest register_req = sip_session->request();
+    req->to_realm = register_req.to_realm;
+    req->from_realm = config->sip_realm;
+   
     //get protocol stack 
     std::stringstream ss;
     sip->req_bye(ss, req);
@@ -513,20 +752,22 @@ int SrsGb28181SipService::send_bye(SrsSipRequest *req)
     sockaddr addr = sip_session->sockaddr_from();
     if (send_message(&addr, sip_session->sockaddr_fromlen(), ss) <= 0)
     {
-        return ERROR_GB28181_SIP_BYE_FAILED;
+        return srs_error_new(ERROR_GB28181_SIP_BYE_FAILED, "sip bye failed");
     }
 
-    return ERROR_SUCCESS;
+    return err;
 }
 
-int SrsGb28181SipService::send_sip_raw_data(SrsSipRequest *req,  std::string data)
+srs_error_t SrsGb28181SipService::send_sip_raw_data(SrsSipRequest *req,  std::string data)
 {
+    srs_error_t err = srs_success;
+
     srs_assert(req);
 
     SrsGb28181SipSession *sip_session = fetch(req->sip_auth_id);
 
     if (!sip_session){
-        return ERROR_GB28181_SESSION_IS_NOTEXIST;
+        return srs_error_new(ERROR_GB28181_SESSION_IS_NOTEXIST, "sip session no exist");
     }
     
     std::stringstream ss;
@@ -535,10 +776,140 @@ int SrsGb28181SipService::send_sip_raw_data(SrsSipRequest *req,  std::string dat
     sockaddr addr = sip_session->sockaddr_from();
     if (send_message(&addr, sip_session->sockaddr_fromlen(), ss) <= 0)
     {
-        return ERROR_GB28181_SIP_BYE_FAILED;
+        return srs_error_new(ERROR_GB28181_SIP_RAW_DATA_FAILED, "sip raw data failed");
     }
 
-    return ERROR_SUCCESS;
+    return err;
+}
+
+srs_error_t SrsGb28181SipService::send_query_catalog(SrsSipRequest *req)
+{
+    srs_error_t err = srs_success;
+
+    srs_assert(req);
+
+    SrsGb28181SipSession *sip_session = fetch(req->sip_auth_id);
+
+    if (!sip_session){
+        return srs_error_new(ERROR_GB28181_SESSION_IS_NOTEXIST, "sip session not exist");
+    }
+
+    req->host = config->host;
+    req->host_port = config->sip_port;
+    req->realm = config->sip_realm;
+    req->serial = config->sip_serial;
+    req->chid = req->sip_auth_id;
+    req->seq = sip_session->sip_cseq();
+
+    //get protocol stack 
+    std::stringstream ss;
+    sip->req_query_catalog(ss, req);
+
+    return send_sip_raw_data(req, ss.str());
+}
+
+srs_error_t SrsGb28181SipService::send_ptz(SrsSipRequest *req, std::string chid, std::string cmd, 
+            uint8_t speed, int priority)
+{
+    srs_error_t err = srs_success;
+
+    srs_assert(req);
+
+    SrsGb28181SipSession *sip_session = fetch(req->sip_auth_id);
+
+    if (!sip_session){
+        return srs_error_new(ERROR_GB28181_SESSION_IS_NOTEXIST, "sip session not exist");
+    }
+
+    SrsGb28181Device *device = sip_session->get_device_info(chid);
+    if (!device){
+        return srs_error_new(ERROR_GB28181_SIP_CH_NOTEXIST, "sip device channel not exist");
+    }
+
+    if (device->invite_status  != SrsGb28181SipSessionInviteOk){
+        return srs_error_new(ERROR_GB28181_SIP_NOT_INVITE, "sip device channel not inviting");   
+    }
+   
+    //prame branch, from_tag, to_tag, call_id, 
+    //The parameter of 'bye' must be the same as 'invite'
+    //SrsSipRequest r = sip_session->request();
+    req->copy(&device->req_inivate);
+
+    req->host = config->host;
+    req->host_port = config->sip_port;
+    req->realm = config->sip_realm;
+    req->serial = config->sip_serial;
+    req->chid = chid;
+    req->seq = sip_session->sip_cseq();
+    
+    SrsSipPtzCmdType ptzcmd = SrsSipPtzCmdRight;
+    const char *ss_cmd = cmd.c_str();
+    if (!strcasecmp(ss_cmd, "stop")){
+        ptzcmd = SrsSipPtzCmdStop;
+    }else if (!strcasecmp(ss_cmd, "right")){
+        ptzcmd = SrsSipPtzCmdRight;
+    }else if (!strcasecmp(ss_cmd, "left")){
+        ptzcmd = SrsSipPtzCmdLeft;
+    }else if (!strcasecmp(ss_cmd, "down")){
+        ptzcmd = SrsSipPtzCmdDown;
+    }else if (!strcasecmp(ss_cmd, "up")){
+        ptzcmd = SrsSipPtzCmdUp;
+    }else if (!strcasecmp(ss_cmd, "zoomout")){
+        ptzcmd = SrsSipPtzCmdZoomOut;
+    }else if (!strcasecmp(ss_cmd, "zoomin")){    
+        ptzcmd = SrsSipPtzCmdZoomIn;
+    }else{
+        return srs_error_new(ERROR_GB28181_SIP_PTZ_CMD_INVALID, "sip ptz cmd no support");  
+    }
+
+    if (speed < 0 || speed > 0xFF){
+        return srs_error_new(ERROR_GB28181_SIP_PTZ_CMD_INVALID, "sip ptz cmd speed out of range");  
+    }
+
+    if (priority <= 0 ){
+        priority = 5;
+    }
+
+    //get protocol stack 
+    std::stringstream ss;
+    sip->req_ptz(ss, req, ptzcmd, speed, priority);
+   
+    sockaddr addr = sip_session->sockaddr_from();
+    if (send_message(&addr, sip_session->sockaddr_fromlen(), ss) <= 0)
+    {
+        return srs_error_new(ERROR_GB28181_SIP_PTZ_FAILED, "sip ptz failed");
+    }
+
+    //call_id map sip_session
+    sip_session_map_by_callid(sip_session, req->call_id);
+
+    return err;
+
+}
+
+srs_error_t SrsGb28181SipService::query_sip_session(std::string sid,  SrsJsonArray* arr)
+{
+    srs_error_t err = srs_success;
+
+    if (!sid.empty()){
+        SrsGb28181SipSession* sess = fetch(sid);
+        if (!sess){
+            return srs_error_new(ERROR_GB28181_SESSION_IS_NOTEXIST, "sip session not exist");
+        }
+        SrsJsonObject* obj = SrsJsonAny::object();
+        arr->append(obj);
+        sess->dumps(obj);
+    }else {
+        std::map::iterator it;
+        for (it = sessions.begin(); it != sessions.end(); ++it) {
+            SrsGb28181SipSession* sess = it->second;
+            SrsJsonObject* obj = SrsJsonAny::object();
+            arr->append(obj);
+            sess->dumps(obj);
+        }
+    }
+
+    return err;
 }
 
 srs_error_t SrsGb28181SipService::fetch_or_create_sip_session(SrsSipRequest *req,  SrsGb28181SipSession** sip_session)
@@ -596,4 +967,30 @@ void SrsGb28181SipService::destroy()
     sessions.clear();
 }
 
+void SrsGb28181SipService::sip_session_map_by_callid(SrsGb28181SipSession *sess, std::string call_id)
+{
+    if (sessions_by_callid.find(call_id) == sessions_by_callid.end()) {
+        sessions_by_callid[call_id] = sess;
+    }
+}
+
+void SrsGb28181SipService::sip_session_unmap_by_callid(std::string call_id)
+{
+    std::map::iterator it = sessions_by_callid.find(call_id);
+    if (it != sessions_by_callid.end()) {
+        sessions_by_callid.erase(it);
+    }
+}
+
+SrsGb28181SipSession* SrsGb28181SipService::fetch_session_by_callid(std::string call_id)
+{
+    SrsGb28181SipSession* session = NULL;
+    if (sessions_by_callid.find(call_id) == sessions_by_callid.end()) {
+        return NULL;
+    }
+    
+    session = sessions_by_callid[call_id];
+    return session;
+}
+
 
diff --git a/trunk/src/app/srs_app_gb28181_sip.hpp b/trunk/src/app/srs_app_gb28181_sip.hpp
index d42d59e41..10d180ee8 100644
--- a/trunk/src/app/srs_app_gb28181_sip.hpp
+++ b/trunk/src/app/srs_app_gb28181_sip.hpp
@@ -41,6 +41,7 @@ class SrsSipRequest;
 class SrsGb28181Config;
 class SrsSipStack;
 class SrsGb28181SipService;
+class SrsGb28181Device;
 
 enum SrsGb28181SipSessionStatusType{
      SrsGb28181SipSessionUnkonw = 0,
@@ -51,6 +52,19 @@ enum SrsGb28181SipSessionStatusType{
      SrsGb28181SipSessionBye = 5,
 };
 
+class SrsGb28181Device
+{
+public:
+    SrsGb28181Device();
+    virtual ~SrsGb28181Device();
+public:
+    std::string device_id;
+    std::string device_status;
+    SrsGb28181SipSessionStatusType  invite_status; 
+    srs_utime_t  invite_time;
+    SrsSipRequest  req_inivate;
+};
+
 class SrsGb28181SipSession: public ISrsCoroutineHandler, public ISrsConnection
 {
 private:
@@ -67,6 +81,7 @@ private:
     srs_utime_t _alive_time;
     srs_utime_t _invite_time;
     srs_utime_t _reg_expires;
+    srs_utime_t _query_catalog_time;
 
     std::string _peer_ip;
     int _peer_port;
@@ -75,10 +90,17 @@ private:
     int _fromlen;
     SrsSipRequest *req;
 
+    std::map _device_list;
+    //std::map _device_status;
+    int _sip_cseq;
+
 public:
     SrsGb28181SipSession(SrsGb28181SipService *c, SrsSipRequest* r);
     virtual ~SrsGb28181SipSession();
 
+private:
+    void destroy();
+
 public:
     void set_register_status(SrsGb28181SipSessionStatusType s) { _register_status = s;}
     void set_alive_status(SrsGb28181SipSessionStatusType s) { _alive_status = s;}
@@ -94,7 +116,6 @@ public:
     void set_sockaddr_len(int l) { _fromlen = l;}
     void set_request(SrsSipRequest *r) { req->copy(r);}
 
-
     SrsGb28181SipSessionStatusType register_status() { return _register_status;}
     SrsGb28181SipSessionStatusType alive_status() { return  _alive_status;}
     SrsGb28181SipSessionStatusType invite_status() { return  _invite_status;}
@@ -108,8 +129,13 @@ public:
     sockaddr  sockaddr_from() { return _from;}
     int sockaddr_fromlen() { return _fromlen;}
     SrsSipRequest request() { return *req;}
+    int sip_cseq(){ return _sip_cseq++;}
 
     std::string session_id() { return _session_id;}
+public:
+    void update_device_list(std::map devlist);
+    SrsGb28181Device *get_device_info(std::string chid);
+    void dumps(SrsJsonObject* obj);
 
 public:
     virtual srs_error_t serve();
@@ -130,6 +156,7 @@ private:
     srs_netfd_t lfd;
 
     std::map sessions;
+    std::map sessions_by_callid;
 public:
     SrsGb28181SipService(SrsConfDirective* c);
     virtual ~SrsGb28181SipService();
@@ -140,15 +167,17 @@ public:
     virtual void set_stfd(srs_netfd_t fd);
 private:
     void destroy();
-    srs_error_t on_udp_sip(std::string host, int port, char* buf, int nb_buf, sockaddr* from, int fromlen);
+    srs_error_t on_udp_sip(std::string host, int port, std::string recv_msg, sockaddr* from, int fromlen);
 public:
     int send_message(sockaddr* f, int l, std::stringstream& ss);
    
     int send_ack(SrsSipRequest *req, sockaddr *f, int l);
     int send_status(SrsSipRequest *req, sockaddr *f, int l);
 
-    int send_invite(SrsSipRequest *req, std::string ip, int port, uint32_t ssrc);
-    int send_bye(SrsSipRequest *req);
+    srs_error_t send_invite(SrsSipRequest *req, std::string ip, int port, uint32_t ssrc, std::string chid);
+    srs_error_t send_bye(SrsSipRequest *req, std::string chid);
+    srs_error_t send_query_catalog(SrsSipRequest *req);
+    srs_error_t send_ptz(SrsSipRequest *req, std::string chid, std::string cmd, uint8_t speed, int priority);
 
     // The SIP command is transmitted through HTTP API, 
     // and the body content is transmitted to the device, 
@@ -164,7 +193,8 @@ public:
     // Content-Length: 0
     //
     //
-    int send_sip_raw_data(SrsSipRequest *req, std::string data);
+    srs_error_t send_sip_raw_data(SrsSipRequest *req, std::string data);
+    srs_error_t query_sip_session(std::string sid,  SrsJsonArray* arr);
 
 public:
     srs_error_t fetch_or_create_sip_session(SrsSipRequest *req,  SrsGb28181SipSession** sess);
@@ -172,6 +202,9 @@ public:
     void remove_session(std::string id);
     SrsGb28181Config* get_config();
     
+    void sip_session_map_by_callid(SrsGb28181SipSession *sess, std::string call_id);
+    void sip_session_unmap_by_callid(std::string call_id);
+    SrsGb28181SipSession* fetch_session_by_callid(std::string call_id);
 };
 
 #endif
diff --git a/trunk/src/app/srs_app_http_api.cpp b/trunk/src/app/srs_app_http_api.cpp
index 61552def2..5400acac9 100644
--- a/trunk/src/app/srs_app_http_api.cpp
+++ b/trunk/src/app/srs_app_http_api.cpp
@@ -1741,6 +1741,21 @@ SrsGoApiGb28181::~SrsGoApiGb28181()
 
 srs_error_t SrsGoApiGb28181::serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessage* r)
 {
+    srs_error_t err = srs_success;
+
+    if ((err = do_serve_http(w, r)) != srs_success) {
+        srs_warn("Server GB28181 err %s", srs_error_desc(err).c_str());
+        int code = srs_error_code(err); srs_error_reset(err);
+        return srs_api_response_code(w, r, code);
+    }
+
+    return err;
+}
+
+srs_error_t SrsGoApiGb28181::do_serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessage* r)
+{
+    srs_error_t err = srs_success;
+
     SrsJsonObject* obj = SrsJsonAny::object();
     SrsAutoFree(SrsJsonObject, obj);
     
@@ -1756,103 +1771,144 @@ srs_error_t SrsGoApiGb28181::serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessa
     //fixed, random
     string port_mode = r->query_get("port_mode");
    
-    if (_srs_gb28181) {
-        if(action == "create_channel"){
-            if (id.empty()){
-                return srs_api_response_code(w, r, ERROR_GB28181_VALUE_EMPTY);
-            }
+    if (!_srs_gb28181) {
+        return srs_error_new(ERROR_GB28181_SERVER_NOT_RUN, "no gb28181 engine");
+    }
 
-            SrsGb28181StreamChannel channel;
-            channel.set_channel_id(id);
-            channel.set_app(app);
-            channel.set_stream(stream);
-            channel.set_port_mode(port_mode);
-
-            uint32_t code = _srs_gb28181->create_stream_channel(&channel);
-            if (code != ERROR_SUCCESS) {
-                return srs_api_response_code(w, r, code);
-            }
-           
-            data->set("query", SrsJsonAny::object()
-              ->set("id", SrsJsonAny::str(channel.get_channel_id().c_str()))
-              ->set("ip", SrsJsonAny::str(channel.get_ip().c_str()))
-              ->set("rtmp_port", SrsJsonAny::integer(channel.get_rtmp_port()))
-              ->set("app", SrsJsonAny::str(channel.get_app().c_str()))
-              ->set("stream", SrsJsonAny::str(channel.get_stream().c_str()))
-              ->set("rtp_port", SrsJsonAny::integer(channel.get_rtp_port()))
-              ->set("ssrc", SrsJsonAny::integer(channel.get_ssrc())));
-            return srs_api_response(w, r, obj->dumps());
-       
-        }
-        else if(action == "delete_channel"){
-           if (id.empty()){
-                return srs_api_response_code(w, r, ERROR_GB28181_VALUE_EMPTY);
-            }
-
-            uint32_t code = _srs_gb28181->delete_stream_channel(id);
-            return srs_api_response_code(w, r, code);
-        }
-        else if(action == "query_channel") {
-            SrsJsonArray* arr = SrsJsonAny::array();
-            data->set("channels", arr);
-           
-            uint32_t code = _srs_gb28181->queue_stream_channel(id, arr);
-            if (code != ERROR_SUCCESS) {
-                return srs_api_response_code(w, r, code);
-            }
-
-            return srs_api_response(w, r, obj->dumps());
-        }
-        else if(action == "sip_invite"){
-            if (id.empty()){
-                return srs_api_response_code(w, r, ERROR_GB28181_VALUE_EMPTY);
-            }
-
-            string ssrc = r->query_get("ssrc");
-            string rtp_port = r->query_get("rtp_port");
-            string ip = r->query_get("ip");
-
-            int _port = strtoul(rtp_port.c_str(), NULL, 10);
-            uint32_t _ssrc = (uint32_t)(strtoul(ssrc.c_str(), NULL, 10));
-
-           
-
-            int code = _srs_gb28181->notify_sip_invite(id, ip, _port, _ssrc);
-            return srs_api_response_code(w, r, code);
-        }
-        else if(action == "sip_bye"){
-            if (id.empty()){
-                return srs_api_response_code(w, r, ERROR_GB28181_VALUE_EMPTY);
-            }
-
-            int code = _srs_gb28181->notify_sip_bye(id);
-            return srs_api_response_code(w, r, code);
-        }
-        else if(action == "sip_raw_data"){
-            if (id.empty()){
-                return srs_api_response_code(w, r, ERROR_GB28181_VALUE_EMPTY);
-            }
-
-            std::string body;
-            r->body_read_all(body);
-            int code = _srs_gb28181->notify_sip_raw_data(id, body);
-            return srs_api_response_code(w, r, code);
-        }
-        else if(action == "sip_unregister"){
-            if (id.empty()){
-                return srs_api_response_code(w, r, ERROR_GB28181_VALUE_EMPTY);
-            }
-            
-            int code = _srs_gb28181->notify_sip_unregister(id);
-            return srs_api_response_code(w, r, code);
-        }
-        else
-        {
-            return srs_api_response_code(w, r, ERROR_GB28181_ACTION_INVALID);
+    if(action == "create_channel"){
+        if (id.empty()){
+            return srs_error_new(ERROR_GB28181_VALUE_EMPTY, "no id");
         }
 
-    }else {
-        return srs_api_response_code(w, r, ERROR_GB28181_SERVER_NOT_RUN);
+        SrsGb28181StreamChannel channel;
+        channel.set_channel_id(id);
+        channel.set_app(app);
+        channel.set_stream(stream);
+        channel.set_port_mode(port_mode);
+
+        if ((err = _srs_gb28181->create_stream_channel(&channel)) != srs_success) {
+            return srs_error_wrap(err, "create stream channel");
+        }
+
+        data->set("query", SrsJsonAny::object()
+          ->set("id", SrsJsonAny::str(channel.get_channel_id().c_str()))
+          ->set("ip", SrsJsonAny::str(channel.get_ip().c_str()))
+          ->set("rtmp_port", SrsJsonAny::integer(channel.get_rtmp_port()))
+          ->set("app", SrsJsonAny::str(channel.get_app().c_str()))
+          ->set("stream", SrsJsonAny::str(channel.get_stream().c_str()))
+          ->set("rtp_port", SrsJsonAny::integer(channel.get_rtp_port()))
+          ->set("ssrc", SrsJsonAny::integer(channel.get_ssrc())));
+        return srs_api_response(w, r, obj->dumps());
+
+    } else if(action == "delete_channel"){
+       if (id.empty()){
+            return srs_error_new(ERROR_GB28181_VALUE_EMPTY, "no id");
+        }
+
+        if ((err = _srs_gb28181->delete_stream_channel(id)) != srs_success) {
+            return srs_error_wrap(err, "delete stream channel");
+        }
+
+        return srs_api_response_code(w, r, code);
+    } else if(action == "query_channel") {
+        SrsJsonArray* arr = SrsJsonAny::array();
+        data->set("channels", arr);
+
+        if ((err = _srs_gb28181->query_stream_channel(id, arr)) != srs_success) {
+            return srs_error_wrap(err, "query stream channel");
+        }
+
+        return srs_api_response(w, r, obj->dumps());
+    } else if(action == "sip_invite"){
+        string chid = r->query_get("chid");
+        if (id.empty() || chid.empty()){
+            return srs_error_new(ERROR_GB28181_VALUE_EMPTY, "no id or chid");
+        }
+
+        string ssrc = r->query_get("ssrc");
+        string rtp_port = r->query_get("rtp_port");
+        string ip = r->query_get("ip");
+
+        int _port = strtoul(rtp_port.c_str(), NULL, 10);
+        uint32_t _ssrc = (uint32_t)(strtoul(ssrc.c_str(), NULL, 10));
+
+        if ((err = _srs_gb28181->notify_sip_invite(id, ip, _port, _ssrc, chid)) != srs_success) {
+            return srs_error_wrap(err, "notify sip invite");
+        }
+
+        return srs_api_response_code(w, r, code);
+    } else if(action == "sip_bye"){
+        string chid = r->query_get("chid");
+        if (id.empty() || chid.empty()){
+            return srs_error_new(ERROR_GB28181_VALUE_EMPTY, "no id or chid");
+        }
+
+        if ((err = _srs_gb28181->notify_sip_bye(id, chid)) != srs_success) {
+            return srs_error_wrap(err, "notify sip bye");
+        }
+
+        return srs_api_response_code(w, r, code);
+    } else if(action == "sip_ptz"){
+        string chid = r->query_get("chid");
+        string ptzcmd = r->query_get("ptzcmd");
+        string speed = r->query_get("speed");
+        string priority = r->query_get("priority");
+        if (id.empty() || chid.empty() || ptzcmd.empty() || speed.empty()){
+            return srs_error_new(ERROR_GB28181_VALUE_EMPTY, "no id or chid or ptzcmd or speed");
+        }
+
+        uint8_t _speed = (uint8_t)(strtoul(speed.c_str(), NULL, 10));
+        int _priority = (int)(strtoul(priority.c_str(), NULL, 10));
+
+        if ((err = _srs_gb28181->notify_sip_ptz(id, chid, ptzcmd, _speed, _priority)) != srs_success) {
+            return srs_error_wrap(err, "notify sip ptz");
+        }
+
+        return srs_api_response_code(w, r, code);
+    } else if(action == "sip_raw_data"){
+        if (id.empty()){
+            return srs_error_new(ERROR_GB28181_VALUE_EMPTY, "no id");
+        }
+
+        std::string body;
+        r->body_read_all(body);
+
+        if ((err = _srs_gb28181->notify_sip_raw_data(id, body)) != srs_success) {
+            return srs_error_wrap(err, "notify sip raw data");
+        }
+
+        return srs_api_response_code(w, r, code);
+    } else if(action == "sip_unregister"){
+        if (id.empty()){
+            return srs_error_new(ERROR_GB28181_VALUE_EMPTY, "no id");
+        }
+
+        if ((err = _srs_gb28181->notify_sip_unregister(id)) != srs_success) {
+            return srs_error_wrap(err, "notify sip unregister");
+        }
+
+        return srs_api_response_code(w, r, code);
+    } else if(action == "sip_query_catalog"){
+        if (id.empty()){
+            return srs_error_new(ERROR_GB28181_VALUE_EMPTY, "no id");
+        }
+
+        if ((err = _srs_gb28181->notify_sip_query_catalog(id)) != srs_success) {
+            return srs_error_wrap(err, "notify sip query catelog");
+        }
+
+        return srs_api_response_code(w, r, code);
+    } else if(action == "sip_query_session"){
+        SrsJsonArray* arr = SrsJsonAny::array();
+        data->set("sessions", arr);
+
+        if ((err = _srs_gb28181->query_sip_session(id, arr)) != srs_success) {
+            return srs_error_wrap(err, "notify sip session");
+        }
+
+        return srs_api_response(w, r, obj->dumps());
+    } else {
+        return srs_error_new(ERROR_GB28181_ACTION_INVALID, "action %s", action.c_str());
     }
 }
 #endif
diff --git a/trunk/src/app/srs_app_http_api.hpp b/trunk/src/app/srs_app_http_api.hpp
index 6dbed63d5..b94dfa46c 100644
--- a/trunk/src/app/srs_app_http_api.hpp
+++ b/trunk/src/app/srs_app_http_api.hpp
@@ -249,6 +249,8 @@ public:
     virtual ~SrsGoApiGb28181();
 public:
     virtual srs_error_t serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessage* r);
+private:
+    virtual srs_error_t do_serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessage* r);
 };
 #endif
 
diff --git a/trunk/src/kernel/srs_kernel_consts.hpp b/trunk/src/kernel/srs_kernel_consts.hpp
index dc6449045..addda5696 100644
--- a/trunk/src/kernel/srs_kernel_consts.hpp
+++ b/trunk/src/kernel/srs_kernel_consts.hpp
@@ -178,6 +178,8 @@
 #define SRS_CONSTS_LOG_EXEC "EXE"
 // The rtc.
 #define SRS_CONSTS_LOG_RTC "RTC"
+// The gb28181 stream log id.
+#define SRS_CONSTS_LOG_GB28181_CASTER "GBS"
 
 ///////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////
diff --git a/trunk/src/kernel/srs_kernel_error.hpp b/trunk/src/kernel/srs_kernel_error.hpp
index c5421d640..ed41db1ba 100644
--- a/trunk/src/kernel/srs_kernel_error.hpp
+++ b/trunk/src/kernel/srs_kernel_error.hpp
@@ -363,6 +363,13 @@
 #define ERROR_GB28181_SIP_BYE_FAILED        6009
 #define ERROR_GB28181_SIP_IS_INVITING       6010
 #define ERROR_GB28181_CREATER_RTMPMUXER_FAILED 6011
+#define ERROR_GB28181_SIP_CH_OFFLINE        6012
+#define ERROR_GB28181_SIP_CH_NOTEXIST       6013
+#define ERROR_GB28181_SIP_RAW_DATA_FAILED   6014
+#define ERROR_GB28181_SIP_PRASE_FAILED      6015
+#define ERROR_GB28181_SIP_PTZ_FAILED        6016
+#define ERROR_GB28181_SIP_NOT_INVITE        6017
+#define ERROR_GB28181_SIP_PTZ_CMD_INVALID   6018
 
 ///////////////////////////////////////////////////////
 // HTTP API error.
diff --git a/trunk/src/protocol/srs_sip_stack.cpp b/trunk/src/protocol/srs_sip_stack.cpp
index a5108fe7a..19d959723 100644
--- a/trunk/src/protocol/srs_sip_stack.cpp
+++ b/trunk/src/protocol/srs_sip_stack.cpp
@@ -45,10 +45,51 @@ using namespace std;
 
 unsigned int srs_sip_random(int min,int max)  
 {  
-    srand(int(time(0)));
+    //it is possible to duplicate data with time(0)
+    srand(unsigned(srs_update_system_time()));
     return  rand() % (max - min + 1) + min;
 } 
 
+std::string srs_sip_generate_branch()
+{
+   int rand = srs_sip_random(10000000, 99999999);
+   std::stringstream branch; 
+   branch << "SrsGbB" << rand;
+   return branch.str();
+}
+
+std::string srs_sip_generate_to_tag()
+{
+   uint32_t rand = srs_sip_random(10000000, 99999999);
+   std::stringstream branch; 
+   branch << "SrsGbT" << rand;
+   return branch.str();
+}
+
+std::string srs_sip_generate_from_tag()
+{
+   uint32_t rand = srs_sip_random(10000000, 99999999);
+   std::stringstream branch; 
+   branch << "SrsGbF" << rand;
+   return branch.str();
+}
+
+std::string srs_sip_generate_call_id()
+{
+   uint32_t rand = srs_sip_random(10000000, 99999999);
+   std::stringstream branch; 
+   branch << "2020" << rand;
+   return branch.str();
+}
+
+std::string srs_sip_generate_sn()
+{
+   uint32_t rand = srs_sip_random(10000000, 99999999);
+   std::stringstream sn; 
+   sn << rand;
+   return sn.str();
+}
+
 std::string  srs_sip_get_form_to_uri(std::string  msg)
 {
     //;tag=536961166
@@ -109,7 +150,7 @@ std::string srs_sip_get_param(std::string msg, std::string param)
 
         std::vector  v_pram = srs_string_split(value, "=");
         
-        if (v_pram.size() > 0) {
+        if (v_pram.size() > 1) {
             return v_pram.at(1);
         }
     }
@@ -156,6 +197,11 @@ SrsSipRequest::SrsSipRequest()
     sip_username = "";
     peer_ip = "";
     peer_port = 0;
+
+    chid = "";
+
+    from_realm = "";
+    to_realm = "";
 }
 
 SrsSipRequest::~SrsSipRequest()
@@ -203,43 +249,51 @@ std::string SrsSipRequest::get_cmdtype_str()
 
 void SrsSipRequest::copy(SrsSipRequest* src)
 {
-     if (!src){
-         return;
-     }
-     
-     method = src->method;
-     uri = src->uri;
-     version = src->version;
-     seq = src->seq;
-     content_type = src->content_type;
-     content_length = src->content_length;
-     call_id = src->call_id;
-     from = src->from;
-     to = src->to;
-     via = src->via;
-     from_tag = src->from_tag;
-     to_tag = src->to_tag;
-     contact = src->contact;
-     user_agent = src->user_agent;
-     branch = src->branch;
-     status = src->status;
-     expires = src->expires;
-     max_forwards = src->max_forwards;
-     www_authenticate = src->www_authenticate;
-     authorization = src->authorization;
-     cmdtype = src->cmdtype;
+    if (!src){
+        return;
+    }
+    
+    method = src->method;
+    uri = src->uri;
+    version = src->version;
+    seq = src->seq;
+    content_type = src->content_type;
+    content_length = src->content_length;
+    call_id = src->call_id;
+    from = src->from;
+    to = src->to;
+    via = src->via;
+    from_tag = src->from_tag;
+    to_tag = src->to_tag;
+    contact = src->contact;
+    user_agent = src->user_agent;
+    branch = src->branch;
+    status = src->status;
+    expires = src->expires;
+    max_forwards = src->max_forwards;
+    www_authenticate = src->www_authenticate;
+    authorization = src->authorization;
+    cmdtype = src->cmdtype;
 
-     host = src->host;
-     host_port = src->host_port;
+    host = src->host;
+    host_port = src->host_port;
 
-     serial = src->serial;
-     realm = src->realm;
-     
-     sip_auth_id = src->sip_auth_id;
-     sip_auth_pwd = src->sip_auth_pwd;
-     sip_username = src->sip_username;
-     peer_ip = src->peer_ip;
-     peer_port = src->peer_port;
+    serial = src->serial;
+    realm = src->realm;
+    
+    sip_auth_id = src->sip_auth_id;
+    sip_auth_pwd = src->sip_auth_pwd;
+    sip_username = src->sip_username;
+    peer_ip = src->peer_ip;
+    peer_port = src->peer_port;
+
+    chid = src->chid;
+
+    xml_body_map = src->xml_body_map;
+    device_list_map = src->device_list_map;
+
+    from_realm = src->from_realm;
+    to_realm  = src->to_realm;
 }
 
 SrsSipStack::SrsSipStack()
@@ -267,12 +321,158 @@ srs_error_t SrsSipStack::parse_request(SrsSipRequest** preq, const char* recv_ms
     return err;
 }
 
+srs_error_t SrsSipStack::parse_xml(std::string xml_msg, std::map &json_map)
+{
+    /*
+    
+    
+    Keepalive
+    2034
+    34020000001110000001
+    OK
+    
+    34020000001320000002
+    34020000001320000003
+    34020000001320000005
+    34020000001320000006
+    34020000001320000007
+    34020000001320000008
+    
+    
+    */
+   
+    const char* start = xml_msg.c_str();
+    const char* end = start + xml_msg.size();
+    char* p = (char*)start;
+    
+    char* value_start = NULL;
+
+    std::string xml_header;
+    int xml_layer = 0;
+
+    //std::map json_map;
+    std::map json_key;
+    while (p < end) {
+        if (p[0] == '\n'){
+            p +=1;
+            value_start = NULL;
+        } else if (p[0] == '\r' && p[1] == '\n') {
+            p +=2;
+            value_start = NULL;
+        } else if (p[0] == '<' && p[1] == '/') { // xml item end flag
+            std::string value = "";
+            if (value_start) {
+                value = std::string(value_start, p-value_start);
+            }
+            
+            //skip  get Notify
+            char *s = p;
+            while (p[0] != '>') {p++;}
+            std::string key(s, p-s);
+
+            // get DeviceList
+            std::vector vec = srs_string_split(key, " ");
+            if (vec.empty()){
+                return srs_error_new(ERROR_GB28181_SIP_PRASE_FAILED, "prase xml"); 
+            }
+
+            key = vec.at(0);
+
+            /*xml element to map
+                
+                    
+                        34020000001320000001
+                        34020000001320000002
+                    
+                
+            to map is: Notify@Info@DeviceID:34020000001320000001,34020000001320000002
+            */
+           
+            //get map key
+            std::string mkey = "";
+            for (int i = 0; i < xml_layer ; i++){
+                if (mkey.empty()) {
+                    mkey = json_key[i];
+                }else{
+                    mkey =  mkey + "@" + json_key[i];     
+                }
+            }
+ 
+            //set map value
+            if (!mkey.empty()){
+                if (json_map.find(mkey) == json_map.end()){
+                    json_map[mkey] = value;         
+                }else{
+                    json_map[mkey] = json_map[mkey] + ","+ value;
+                }    
+            }
+          
+            value_start = NULL;
+            xml_layer--;
+
+        } else if (p[0] == '<') { //  xml item begin flag
+            //skip <
+            p +=1;
+
+            // get Notify
+            char *s = p;
+            while (p[0] != '>') {p++;}
+            std::string key(s, p-s);
+
+            if (srs_string_contains(key, "?xml")){
+                //xml header
+                xml_header = key;
+                json_map["XmlHeader"] = xml_header;
+            }else {
+                // get DeviceList
+                std::vector vec = srs_string_split(key, " ");
+                if (vec.empty()){
+                    return srs_error_new(ERROR_GB28181_SIP_PRASE_FAILED, "prase xml"); 
+                }
+
+                key = vec.at(0);
+
+                //key to map by xml_layer
+                //
+                //  
+                //  
+                //
+                //json_key[0] = "Notify"
+                //json_key[1] = "info"
+                json_key[xml_layer] = key; 
+                xml_layer++;  
+            }
+
+            p +=1;
+            value_start = p;
+        } else {
+          p++;
+        }
+    }
+
+    // std::map::iterator it2;
+    // for (it2 = json_map.begin(); it2 != json_map.end(); ++it2) {
+    //     srs_trace("========%s:%s", it2->first.c_str(), it2->second.c_str());
+    // }
+
+    return srs_success;
+}
+
 srs_error_t SrsSipStack::do_parse_request(SrsSipRequest* req, const char* recv_msg)
 {
     srs_error_t err = srs_success;
 
     std::vector header_body = srs_string_split(recv_msg, SRS_RTSP_CRLFCRLF);
+    if (header_body.empty()){
+        return srs_error_new(ERROR_GB28181_SIP_PRASE_FAILED, "parse reques message"); 
+    }
+
     std::string header = header_body.at(0);
+    //Must be added SRS_RTSP_CRLFCRLF in order to handle the last line header
+    header += SRS_RTSP_CRLFCRLF; 
     std::string body = "";
 
     if (header_body.size() > 1){
@@ -296,7 +496,7 @@ srs_error_t SrsSipStack::do_parse_request(SrsSipRequest* req, const char* recv_m
             newline_start = p;
 
             if (firstline == ""){
-                firstline = oneline;
+                firstline = srs_string_replace(oneline, "\r\n", "");
                 srs_info("sip: first line=%s", firstline.c_str());
             }else{
                 size_t pos = oneline.find(":");
@@ -311,7 +511,7 @@ srs_error_t SrsSipStack::do_parse_request(SrsSipRequest* req, const char* recv_m
                         
                         if (!strcasecmp(phead, "call-id:")) {
                             std::vector vec_callid = srs_string_split(content, " ");
-                            req->call_id = vec_callid.at(0);
+                            req->call_id = vec_callid.empty() ? "" : vec_callid.at(0);
                         } 
                         else if (!strcasecmp(phead, "contact:")) {
                             req->contact = content;
@@ -327,8 +527,9 @@ srs_error_t SrsSipStack::do_parse_request(SrsSipRequest* req, const char* recv_m
                         } 
                         else if (!strcasecmp(phead, "cseq:")) {
                             std::vector vec_seq = srs_string_split(content, " ");
-                            req->seq =  strtoul(vec_seq.at(0).c_str(), NULL, 10);
-                            req->method = vec_seq.at(1);
+                            std::string seq = vec_seq.empty() ? "" : vec_seq.at(0);
+                            req->seq =  strtoul(seq.c_str(), NULL, 10);
+                            req->method = vec_seq.size() > 0 ? vec_seq.at(1) : "";
                         } 
                         else if (!strcasecmp(phead, "from:")) {
                             content = srs_string_replace(content, "sip:", "");
@@ -336,6 +537,11 @@ srs_error_t SrsSipStack::do_parse_request(SrsSipRequest* req, const char* recv_m
                             if (srs_string_contains(content, "tag")) {
                                 req->from_tag = srs_sip_get_param(content.c_str(), "tag");
                             }
+
+                            std::vector vec = srs_string_split(req->from, "@");
+                            if (vec.size() > 1){
+                                req->from_realm = vec.at(1);
+                            }
                         } 
                         else if (!strcasecmp(phead, "to:")) {
                             content = srs_string_replace(content, "sip:", "");
@@ -343,9 +549,13 @@ srs_error_t SrsSipStack::do_parse_request(SrsSipRequest* req, const char* recv_m
                             if (srs_string_contains(content, "tag")) {
                                 req->to_tag = srs_sip_get_param(content.c_str(), "tag");
                             }
+
+                            std::vector vec = srs_string_split(req->to, "@");
+                            if (vec.size() > 1){
+                                req->to_realm = vec.at(1);
+                            }
                         } 
                         else if (!strcasecmp(phead, "via:")) {
-                            //std::vector vec_via = srs_string_split(content, ";");
                             req->via = content;
                             req->branch = srs_sip_get_param(content.c_str(), "branch");
                         } 
@@ -377,28 +587,81 @@ srs_error_t SrsSipStack::do_parse_request(SrsSipRequest* req, const char* recv_m
     }
    
     std::vector  method_uri_ver = srs_string_split(firstline, " ");
+
+    if (method_uri_ver.empty()) {
+        return srs_error_new(ERROR_GB28181_SIP_PRASE_FAILED, "parse request firstline is empty"); 
+    }
+
     //respone first line text:SIP/2.0 200 OK
     if (!strcasecmp(method_uri_ver.at(0).c_str(), "sip/2.0")) {
         req->cmdtype = SrsSipCmdRespone;
         //req->method= vec_seq.at(1);
-        req->status = method_uri_ver.at(1);
+        req->status = method_uri_ver.size() > 0 ? method_uri_ver.at(1) : "";
         req->version = method_uri_ver.at(0);
         req->uri = req->from;
 
         vector str = srs_string_split(req->to, "@");
-        req->sip_auth_id = srs_string_replace(str.at(0), "sip:", "");
+        std::string ss = str.empty() ? "" : str.at(0);
+        req->sip_auth_id = srs_string_replace(ss, "sip:", "");
   
     }else {//request first line text :MESSAGE sip:34020000002000000001@3402000000 SIP/2.0
         req->cmdtype = SrsSipCmdRequest;
         req->method= method_uri_ver.at(0);
-        req->uri = method_uri_ver.at(1);
-        req->version = method_uri_ver.at(2);
+        req->uri = method_uri_ver.size() > 0 ? method_uri_ver.at(1) : "";
+        req->version = method_uri_ver.size() > 1 ? method_uri_ver.at(2) : "";
 
         vector str = srs_string_split(req->from, "@");
-        req->sip_auth_id = srs_string_replace(str.at(0), "sip:", "");
+        std::string ss = str.empty() ? "" : str.at(0);
+        req->sip_auth_id = srs_string_replace(ss, "sip:", "");
     }
 
     req->sip_username =  req->sip_auth_id;
+
+    //Content-Type: Application/MANSCDP+xml
+    if (!strcasecmp(req->content_type.c_str(),"application/manscdp+xml")){
+        std::map body_map;
+        //xml to map
+        if ((err = parse_xml(body, body_map)) != srs_success) {
+            return srs_error_wrap(err, "sip parse xml");
+        };
+        
+        //Response Cmd
+        if (body_map.find("Response") != body_map.end()){
+            std::string cmdtype = body_map["Response@CmdType"];
+            if (cmdtype == "Catalog"){
+                //Response@DeviceList@Item@DeviceID:3000001,3000002
+                std::vector vec_device_id = srs_string_split(body_map["Response@DeviceList@Item@DeviceID"], ",");
+                //Response@DeviceList@Item@Status:ON,OFF
+                std::vector vec_device_status = srs_string_split(body_map["Response@DeviceList@Item@Status"], ",");
+                 
+                //map key:devicd_id value:status 
+                for(int i=0 ; i i) {
+                        status = vec_device_status.at(i);
+                    }
+              
+                    req->device_list_map[vec_device_id.at(i)] = status;
+                }
+            }else{
+                //TODO: fixme
+                srs_trace("sip: Response cmdtype=%s not processed", cmdtype.c_str());
+            }
+        } //Notify Cmd
+        else if (body_map.find("Notify") !=  body_map.end()){
+            std::string cmdtype = body_map["Notify@CmdType"];
+            if (cmdtype == "Keepalive"){
+                //TODO: ????
+                std::vector vec_device_id = srs_string_split(body_map["Notify@Info@DeviceID"], ",");
+                for(int i=0; idevice_list_map[vec_device_id.at(i)] = "OFF";
+                }
+            }else{
+               //TODO: fixme
+               srs_trace("sip: Notify cmdtype=%s not processed", cmdtype.c_str());
+            }
+        }// end if(body_map)
+    }//end if (!strcasecmp)
    
     srs_info("sip: method=%s uri=%s version=%s cmdtype=%s", 
            req->method.c_str(), req->uri.c_str(), req->version.c_str(), req->get_cmdtype_str().c_str());
@@ -445,8 +708,12 @@ std::string SrsSipStack::get_sip_via(SrsSipRequest const *req)
 {
     std::string via = srs_string_replace(req->via, SRS_SIP_VERSION"/UDP ", "");
     std::vector vec_via = srs_string_split(via, ";");
-    std::string ip_port = vec_via.at(0);
+
+    std::string ip_port = vec_via.empty() ? "" : vec_via.at(0);
     std::vector vec_ip_port = srs_string_split(ip_port, ":");
+
+    std::string ip = vec_ip_port.empty() ? "" : vec_ip_port.at(0);
+    std::string port = vec_ip_port.size() > 1 ? vec_ip_port.at(1) : "";
     
     std::string branch, rport, received;
     if (req->branch.empty()){
@@ -455,8 +722,16 @@ std::string SrsSipStack::get_sip_via(SrsSipRequest const *req)
         branch = ";branch=" + req->branch;
     }
 
-    received = ";received=" + vec_ip_port.at(0);
-    rport = ";rport=" + vec_ip_port.at(1);
+    if (!req->peer_ip.empty()){
+        ip = req->peer_ip;
+
+        std::stringstream ss;
+        ss << req->peer_port;
+        port = ss.str();
+    }
+
+    received = ";received=" + ip;
+    rport = ";rport=" + port;
 
     return SRS_SIP_VERSION"/UDP " + ip_port + rport + received + branch;
 }
@@ -640,10 +915,12 @@ void SrsSipStack::req_invite(stringstream& ss, SrsSipRequest *req, string ip, in
     User-Agent: SRS/4.0.4(Leo)
     Content-Length: 0
     */
-
+    char _ssrc[11];
+    sprintf(_ssrc, "%010d", ssrc);
+  
     std::stringstream sdp;
     sdp << "v=0" << SRS_RTSP_CRLF
-    << "o=" << req->sip_auth_id << " 0 0 IN IP4 " << ip << SRS_RTSP_CRLF
+    << "o=" << req->serial << " 0 0 IN IP4 " << ip << SRS_RTSP_CRLF
     << "s=Play" << SRS_RTSP_CRLF
     << "c=IN IP4 " << ip << SRS_RTSP_CRLF
     << "t=0 0" << SRS_RTSP_CRLF
@@ -658,37 +935,44 @@ void SrsSipStack::req_invite(stringstream& ss, SrsSipRequest *req, string ip, in
     //<< "a=rtpmap:99 H265/90000" << SRS_RTSP_CRLF
     //<< "a=streamMode:MAIN\r\n"
     //<< "a=filesize:0\r\n"
-    << "y=" << ssrc << SRS_RTSP_CRLF;
+    << "y=" << _ssrc << SRS_RTSP_CRLF;
 
     
-    int rand = srs_sip_random(1000, 9999);
-    std::stringstream from, to, uri, branch, from_tag;
+    std::stringstream from, to, uri;
     //"INVITE sip:34020000001320000001@3402000000 SIP/2.0\r\n
-    uri << "sip:" <<  req->sip_auth_id << "@" << req->realm;
+    uri << "sip:" <<  req->chid << "@" << req->realm;
     //From: ;tag=500485%d\r\n
-    from << req->serial << "@" << req->host << ":"  << req->host_port;
-    to << req->sip_auth_id <<  "@" << req->realm;
-
+    from << req->serial << "@" << req->realm;
+    to <<  req->chid <<  "@" << req->realm;
+   
     req->from = from.str();
-    req->to   = to.str();
+    req->to = to.str();
+
+    if (!req->to_realm.empty()){
+        req->to  =  req->chid + "@" + req->to_realm;
+    }
+
+    if (!req->from_realm.empty()){
+        req->from  =  req->serial + "@" + req->from_realm;
+    }
+
     req->uri  = uri.str();
 
-    branch << "z9hG4bK3420" << rand;
-    from_tag << "51235" << rand;
-    req->branch = branch.str();
-    req->from_tag = from_tag.str();
+    req->call_id = srs_sip_generate_call_id();
+    req->branch = srs_sip_generate_branch();
+    req->from_tag = srs_sip_generate_from_tag();
 
     ss << "INVITE " << req->uri << " " << SRS_SIP_VERSION << SRS_RTSP_CRLF
     << "Via: " << SRS_SIP_VERSION << "/UDP "<< req->host << ":" << req->host_port << ";rport;branch=" << req->branch << SRS_RTSP_CRLF
     << "From: " << get_sip_from(req) << SRS_RTSP_CRLF
     << "To: " << get_sip_to(req) << SRS_RTSP_CRLF
-    << "Call-ID: 20000" << rand <call_id <seq << " INVITE" << SRS_RTSP_CRLF
     << "Content-Type: Application/SDP" << SRS_RTSP_CRLF
     << "Contact: to << ">" << SRS_RTSP_CRLF
-    << "Max-Forwards: 70" << " \r\n"
+    << "Max-Forwards: 70" << SRS_RTSP_CRLF
     << "User-Agent: " << SRS_SIP_USER_AGENT <sip_auth_id << ":" << ssrc << "," << req->serial << ":0" << SRS_RTSP_CRLF
+    << "Subject: "<< req->chid << ":" << _ssrc << "," << req->serial << ":0" << SRS_RTSP_CRLF
     << "Content-Length: " << sdp.str().length() << SRS_RTSP_CRLFCRLF
     << sdp.str();
 }
@@ -703,7 +987,7 @@ void SrsSipStack::req_401_unauthorized(std::stringstream& ss, SrsSipRequest *req
     To: ;tag=102092689
     CSeq: 1 REGISTER
     Call-ID: 1650345118
-    User-Agent: LiveGBS v200228
+    User-Agent: SRS/4.0.4(Leo)
     Contact: 
     Content-Length: 0
     WWW-Authenticate: Digest realm="3402000000",qop="auth",nonce="f1da98bd160f3e2efe954c6eedf5f75a"
@@ -737,10 +1021,10 @@ void SrsSipStack::req_ack(std::stringstream& ss, SrsSipRequest *req){
     Content-Length: 0
     */
   
-    ss << "ACK " << "sip:" <<  req->sip_auth_id << "@" << req->realm << " "<< SRS_SIP_VERSION << SRS_RTSP_CRLF
+    ss << "ACK " << "sip:" <<  req->chid << "@" << req->realm << " "<< SRS_SIP_VERSION << SRS_RTSP_CRLF
     << "Via: " << SRS_SIP_VERSION << "/UDP " << req->host << ":" << req->host_port << ";rport;branch=" << req->branch << SRS_RTSP_CRLF
-    << "From: serial << "@" << req->host + ":" << req->host_port << ">;tag=" << req->from_tag << SRS_RTSP_CRLF
-    << "To: sip_auth_id <<  "@" << req->realm << ">\r\n"
+    << "From: " << get_sip_from(req) << SRS_RTSP_CRLF
+    << "To: "<< get_sip_to(req) << SRS_RTSP_CRLF
     << "Call-ID: " << req->call_id << SRS_RTSP_CRLF
     << "CSeq: " << req->seq << " ACK"<< SRS_RTSP_CRLF
     << "Max-Forwards: 70" << SRS_RTSP_CRLF
@@ -775,15 +1059,23 @@ void SrsSipStack::req_bye(std::stringstream& ss, SrsSipRequest *req)
     */
 
     std::stringstream from, to, uri;
-    uri << "sip:" <<  req->sip_auth_id << "@" << req->realm;
+    uri << "sip:" <<  req->chid << "@" << req->realm;
     from << req->serial << "@"  << req->realm;
-    to << req->sip_auth_id <<  "@" <<  req->realm;
+    to << req->chid <<  "@" <<  req->realm;
 
     req->from = from.str();
-    req->to   = to.str();
+    req->to = to.str();
+
+    if (!req->to_realm.empty()){
+        req->to  =  req->chid + "@" + req->to_realm;
+    }
+
+    if (!req->from_realm.empty()){
+        req->from  =  req->serial + "@" + req->from_realm;
+    }
+
     req->uri  = uri.str();
 
-    int seq = srs_sip_random(22, 99);
     ss << "BYE " << req->uri << " "<< SRS_SIP_VERSION << SRS_RTSP_CRLF
     //<< "Via: "<< SRS_SIP_VERSION << "/UDP "<< req->host << ":" << req->host_port << ";rport" << branch << SRS_RTSP_CRLF
     << "Via: " << SRS_SIP_VERSION << "/UDP " << req->host << ":" << req->host_port << ";rport;branch=" << req->branch << SRS_RTSP_CRLF
@@ -791,12 +1083,243 @@ void SrsSipStack::req_bye(std::stringstream& ss, SrsSipRequest *req)
     << "To: " << get_sip_to(req) << SRS_RTSP_CRLF
     //bye callid is inivte callid
     << "Call-ID: " << req->call_id << SRS_RTSP_CRLF
-    << "CSeq: "<< seq <<" BYE" << SRS_RTSP_CRLF
+    << "CSeq: "<< req->seq <<" BYE" << SRS_RTSP_CRLF
     << "Max-Forwards: 70" << SRS_RTSP_CRLF
     << "User-Agent: " << SRS_SIP_USER_AGENT << SRS_RTSP_CRLF
     << "Content-Length: 0" << SRS_RTSP_CRLFCRLF;
    
 }
 
+void SrsSipStack::req_query_catalog(std::stringstream& ss, SrsSipRequest *req)
+{
+    /*
+    //request: sip-agent <----MESSAGE Query Catalog--- sip-server
+    MESSAGE sip:34020000001110000001@192.168.1.21:5060 SIP/2.0
+    Via: SIP/2.0/UDP 192.168.1.17:5060;rport;branch=z9hG4bK563315752
+    From: ;tag=387315752
+    To: 
+    Call-ID: 728315752
+    CSeq: 32 MESSAGE
+    Content-Type: Application/MANSCDP+xml
+    Max-Forwards: 70
+    User-Agent: SRS/4.0.20(Leo)
+    Content-Length: 162
+
+    
+    
+        Catalog
+        419315752
+        34020000001110000001
+    
+    SIP/2.0 200 OK
+    Via: SIP/2.0/UDP 192.168.1.17:5060;rport=5060;branch=z9hG4bK563315752
+    From: ;tag=387315752
+    To: ;tag=1420696981
+    Call-ID: 728315752
+    CSeq: 32 MESSAGE
+    User-Agent: Embedded Net DVR/NVR/DVS
+    Content-Length: 0
+
+    //response: sip-agent ----MESSAGE Query Catalog---> sip-server
+    SIP/2.0 200 OK
+    Via: SIP/2.0/UDP 192.168.1.17:5060;rport=5060;received=192.168.1.17;branch=z9hG4bK563315752
+    From: ;tag=387315752
+    To: ;tag=1420696981
+    CSeq: 32 MESSAGE
+    Call-ID: 728315752
+    User-Agent: SRS/4.0.20(Leo)
+    Content-Length: 0
+
+    //request: sip-agent ----MESSAGE Response Catalog---> sip-server
+    MESSAGE sip:34020000001110000001@3402000000.spvmn.cn SIP/2.0
+    Via: SIP/2.0/UDP 192.168.1.21:5060;rport;branch=z9hG4bK1681502633
+    From: ;tag=1194168247
+    To: 
+    Call-ID: 685380150
+    CSeq: 20 MESSAGE
+    Content-Type: Application/MANSCDP+xml
+    Max-Forwards: 70
+    User-Agent: Embedded Net DVR/NVR/DVS
+    Content-Length:   909
+
+    
+    
+    Catalog
+    419315752
+    34020000001110000001
+    8
+    
+    
+    34020000001320000001
+    Camera 01
+    Manufacturer
+    Camera
+    Owner
+    CivilCode
+    
        192.168.254.18
        
+    0
+    0
+    1
+    0
+    ON
+            
+    
+    34020000001320000002
+    IPCamera 02
+    Manufacturer
+    Camera
+    Owner
+    CivilCode
+    
        192.168.254.14
        
+    0
+    0
+    1
+    0
+    OFF
+            
+            
+            
+
+    */
+
+    std::stringstream xml;
+    std::string xmlbody;
+
+    xml << "" << SRS_RTSP_CRLF
+    << "" << SRS_RTSP_CRLF
+    << "Catalog" << SRS_RTSP_CRLF
+    << "" << srs_sip_generate_sn() << "" << SRS_RTSP_CRLF
+    << "" << req->sip_auth_id << "" << SRS_RTSP_CRLF
+    << "" << SRS_RTSP_CRLF;
+    xmlbody = xml.str();
+
+    std::stringstream from, to, uri;
+    //"INVITE sip:34020000001320000001@3402000000 SIP/2.0\r\n
+    uri << "sip:" <<  req->sip_auth_id << "@" << req->realm;
+    //From: ;tag=500485%d\r\n
+    from << req->serial << "@" << req->host << ":"  << req->host_port;
+    to << req->sip_auth_id <<  "@" << req->realm;
+ 
+    req->from = from.str();
+    req->to   = to.str();
+    req->uri  = uri.str();
+   
+    req->call_id = srs_sip_generate_call_id();
+    req->branch = srs_sip_generate_branch();
+    req->from_tag = srs_sip_generate_from_tag();
+
+    ss << "MESSAGE " << req->uri << " " << SRS_SIP_VERSION << SRS_RTSP_CRLF
+    << "Via: " << SRS_SIP_VERSION << "/UDP "<< req->host << ":" << req->host_port << ";rport;branch=" << req->branch << SRS_RTSP_CRLF
+    << "From: " << get_sip_from(req) << SRS_RTSP_CRLF
+    << "To: " << get_sip_to(req) << SRS_RTSP_CRLF
+    << "Call-ID: " << req->call_id << SRS_RTSP_CRLF
+    << "CSeq: " << req->seq << " MESSAGE" << SRS_RTSP_CRLF
+    << "Content-Type: Application/MANSCDP+xml" << SRS_RTSP_CRLF
+    << "Max-Forwards: 70" << SRS_RTSP_CRLF
+    << "User-Agent: " << SRS_SIP_USER_AGENT << SRS_RTSP_CRLF
+    << "Content-Length: " << xmlbody.length() << SRS_RTSP_CRLFCRLF
+    << xmlbody;
+
+}
+
+void SrsSipStack::req_ptz(std::stringstream& ss, SrsSipRequest *req, uint8_t cmd, uint8_t speed, int priority)
+{
+   
+    /*
+      
+      
+    DeviceControl  
+    11  
+    34020000001310000053  
+    A50F01021F0000D6  
+     
+    */
+
+    uint8_t ptz_cmd[8] = {0};
+    ptz_cmd[0] = SRS_SIP_PTZ_START;
+    ptz_cmd[1] = 0x0F;
+    ptz_cmd[2] = 0x01;
+    ptz_cmd[3] = cmd;
+    switch(cmd){
+        case SrsSipPtzCmdStop: // = 0x00
+            ptz_cmd[4] = 0;
+            ptz_cmd[5] = 0;
+            ptz_cmd[6] = 0;
+            break;
+        case SrsSipPtzCmdRight: // = 0x01,
+        case SrsSipPtzCmdLeft: //  = 0x02,
+            ptz_cmd[4] = speed;
+            break;
+        case SrsSipPtzCmdDown: //  = 0x04,
+        case SrsSipPtzCmdUp: //    = 0x08,
+            ptz_cmd[5] = speed;
+            break;
+        case SrsSipPtzCmdZoomOut: //  = 0x10,
+        case SrsSipPtzCmdZoomIn: //   = 0x20
+            ptz_cmd[6] = (speed & 0x0F) << 4;
+            break;
+        default:
+            return;
+    }
+
+    uint32_t check = 0;
+    for (int i = 0; i < 7; i++){
+        check += ptz_cmd[i];
+    }
+
+    ptz_cmd[7] = (uint8_t)(check % 256);
+
+    std::stringstream ss_ptzcmd;
+    for (int i = 0; i < 8; i++){
+        char hex_cmd[3] = {0};
+        sprintf(hex_cmd, "%02X", ptz_cmd[i]);
+        ss_ptzcmd << hex_cmd;
+    }
+
+    std::stringstream xml;
+    std::string xmlbody;
+
+    xml << "" << SRS_RTSP_CRLF
+    << "" << SRS_RTSP_CRLF
+    << "DeviceControl" << SRS_RTSP_CRLF
+    << "" << srs_sip_generate_sn() << "" << SRS_RTSP_CRLF
+    << "" << req->sip_auth_id << "" << SRS_RTSP_CRLF
+    << "" << ss_ptzcmd.str() << "" << SRS_RTSP_CRLF
+    << "" << SRS_RTSP_CRLF
+    << "" << priority << "" << SRS_RTSP_CRLF
+    << "" << SRS_RTSP_CRLF
+    << "" << SRS_RTSP_CRLF;
+    xmlbody = xml.str();
+
+    std::stringstream from, to, uri, call_id;
+    //"INVITE sip:34020000001320000001@3402000000 SIP/2.0\r\n
+    uri << "sip:" <<  req->sip_auth_id << "@" << req->realm;
+    //From: ;tag=500485%d\r\n
+    from << req->serial << "@" << req->host << ":"  << req->host_port;
+    to << req->sip_auth_id <<  "@" << req->realm;
+   
+    req->from = from.str();
+    req->to   = to.str();
+    req->uri  = uri.str();
+
+    req->call_id = srs_sip_generate_call_id();
+    req->branch = srs_sip_generate_branch();
+    req->from_tag = srs_sip_generate_from_tag();
+
+    ss << "MESSAGE " << req->uri << " "<< SRS_SIP_VERSION << SRS_RTSP_CRLF
+    //<< "Via: "<< SRS_SIP_VERSION << "/UDP "<< req->host << ":" << req->host_port << ";rport" << branch << SRS_RTSP_CRLF
+    << "Via: " << SRS_SIP_VERSION << "/UDP " << req->host << ":" << req->host_port << ";rport;branch=" << req->branch << SRS_RTSP_CRLF
+    << "From: " << get_sip_from(req) << SRS_RTSP_CRLF
+    << "To: " << get_sip_to(req) << SRS_RTSP_CRLF
+    << "Call-ID: " << req->call_id << SRS_RTSP_CRLF
+    << "CSeq: "<< req->seq <<" MESSAGE" << SRS_RTSP_CRLF
+    << "Content-Type: Application/MANSCDP+xml" << SRS_RTSP_CRLF
+    << "Max-Forwards: 70" << SRS_RTSP_CRLF
+    << "User-Agent: " << SRS_SIP_USER_AGENT << SRS_RTSP_CRLF
+    << "Content-Length: " << xmlbody.length() << SRS_RTSP_CRLFCRLF
+    << xmlbody;
+
+}
+
 #endif
 
diff --git a/trunk/src/protocol/srs_sip_stack.hpp b/trunk/src/protocol/srs_sip_stack.hpp
index 6e6c47d7c..a91897d18 100644
--- a/trunk/src/protocol/srs_sip_stack.hpp
+++ b/trunk/src/protocol/srs_sip_stack.hpp
@@ -30,6 +30,7 @@
 
 #include 
 #include 
+#include 
 
 #include 
 #include 
@@ -49,12 +50,24 @@ class SrsAudioFrame;
 #define SRS_SIP_VERSION "SIP/2.0"
 #define SRS_SIP_USER_AGENT RTMP_SIG_SRS_SERVER
 
+#define SRS_SIP_PTZ_START 0xA5
+
 
 enum SrsSipCmdType{
     SrsSipCmdRequest=0,
     SrsSipCmdRespone=1
 };
 
+enum SrsSipPtzCmdType{
+    SrsSipPtzCmdStop = 0x00,
+    SrsSipPtzCmdRight = 0x01,
+    SrsSipPtzCmdLeft  = 0x02,
+    SrsSipPtzCmdDown  = 0x04,
+    SrsSipPtzCmdUp    = 0x08,
+    SrsSipPtzCmdZoomIn  = 0x10,
+    SrsSipPtzCmdZoomOut   = 0x20
+};
+
 std::string srs_sip_get_utc_date();
 
 class SrsSipRequest
@@ -88,6 +101,11 @@ public:
     std::string www_authenticate;
     std::string authorization;
 
+    std::string chid;
+
+    std::map xml_body_map;
+    std::map device_list_map;
+
 public:
     std::string serial;
     std::string realm;
@@ -100,6 +118,9 @@ public:
     int host_port;
     SrsSipCmdType cmdtype;
 
+    std::string from_realm;
+    std::string to_realm;
+
 public:
     SrsRtspSdp* sdp;
     SrsRtspTransport* transport;
@@ -131,6 +152,7 @@ public:
     virtual srs_error_t parse_request(SrsSipRequest** preq, const char *recv_msg, int nb_buf);
 protected:
     virtual srs_error_t do_parse_request(SrsSipRequest* req, const char *recv_msg);
+    virtual srs_error_t parse_xml(std::string xml_msg, std::map &json_map);
 
 private:
     //response from
@@ -146,10 +168,13 @@ public:
     virtual void resp_keepalive(std::stringstream& ss, SrsSipRequest *req);
   
     //request:  request sent by the sip-server, wait for sip-agent response
-    virtual void req_invite(std::stringstream& ss, SrsSipRequest *req, std::string ip, int port, uint32_t ssrc);
+    virtual void req_invite(std::stringstream& ss, SrsSipRequest *req, std::string ip, 
+        int port, uint32_t ssrc);
     virtual void req_ack(std::stringstream& ss, SrsSipRequest *req);
     virtual void req_bye(std::stringstream& ss, SrsSipRequest *req);
     virtual void req_401_unauthorized(std::stringstream& ss, SrsSipRequest *req);
+    virtual void req_query_catalog(std::stringstream& ss, SrsSipRequest *req);
+    virtual void req_ptz(std::stringstream& ss, SrsSipRequest *req, uint8_t cmd, uint8_t speed,  int priority);
    
 };