use SrsTcpClient instead raw socket.

@@ -276,6 +276,8 @@ int SrsDynamicHttpConn::connect()
     if ((ret = transport->connect(req->host, req->port, ST_UTIME_NO_TIMEOUT)) != ERROR_SUCCESS) {
         return ret;
     }
+    
+    srs_freep(client);
     client = new SrsRtmpClient(transport); 
     
     client->set_recv_timeout(SRS_CONSTS_RTMP_RECV_TIMEOUT_US);

@@ -63,13 +63,12 @@ using namespace std;
 
 SrsEdgeIngester::SrsEdgeIngester()
 {
-    io = NULL;
+    transport = new SrsTcpClient();
     kbps = new SrsKbps();
     client = NULL;
     _edge = NULL;
     _req = NULL;
     stream_id = 0;
-    stfd = NULL;
     lb = new SrsLbRoundRobin();
     pthread = new SrsReusableThread2("edge-igs", this, SRS_EDGE_INGESTER_SLEEP_US);
 }
@@ -78,6 +77,7 @@ SrsEdgeIngester::~SrsEdgeIngester()
 {
     stop();
     
+    srs_freep(transport);
     srs_freep(lb);
     srs_freep(pthread);
     srs_freep(kbps);
@@ -109,11 +109,9 @@ int SrsEdgeIngester::start()
 void SrsEdgeIngester::stop()
 {
     pthread->stop();
-    
-    close_underlayer_socket();
+    transport->close();
     
     srs_freep(client);
-    srs_freep(io);
     kbps->set_io(NULL, NULL);
     
     // notice to unpublish.
@@ -336,17 +334,12 @@ int SrsEdgeIngester::process_publish_message(SrsCommonMessage* msg)
     return ret;
 }
 
-void SrsEdgeIngester::close_underlayer_socket()
-{
-    srs_close_stfd(stfd);
-}
-
 int SrsEdgeIngester::connect_server(string& ep_server, int& ep_port)
 {
     int ret = ERROR_SUCCESS;
     
     // reopen
-    close_underlayer_socket();
+    transport->close();
     
     SrsConfDirective* conf = _srs_config->get_vhost_edge_origin(_req->vhost);
     
@@ -368,20 +361,16 @@ int SrsEdgeIngester::connect_server(string& ep_server, int& ep_port)
     
     // open socket.
     int64_t timeout = SRS_EDGE_INGESTER_TIMEOUT_US;
-    if ((ret = srs_socket_connect(ep_server, ep_port, timeout, &stfd)) != ERROR_SUCCESS) {
+    if ((ret = transport->connect(ep_server, ep_port, timeout)) != ERROR_SUCCESS) {
         srs_warn("edge pull failed, stream=%s, tcUrl=%s to server=%s, port=%d, timeout=%"PRId64", ret=%d",
             _req->stream.c_str(), _req->tcUrl.c_str(), ep_server.c_str(), ep_port, timeout, ret);
         return ret;
     }
     
     srs_freep(client);
-    srs_freep(io);
-    
-    srs_assert(stfd);
-    io = new SrsStSocket(stfd);
-    client = new SrsRtmpClient(io);
+    client = new SrsRtmpClient(transport);
     
-    kbps->set_io(io, io);
+    kbps->set_io(transport, transport);
     
     srs_trace("edge pull connected, url=%s/%s, server=%s:%d",
         _req->tcUrl.c_str(), _req->stream.c_str(), ep_server.c_str(), ep_port);
@@ -391,14 +380,13 @@ int SrsEdgeIngester::connect_server(string& ep_server, int& ep_port)
 
 SrsEdgeForwarder::SrsEdgeForwarder()
 {
-    io = NULL;
+    transport = new SrsTcpClient();
     kbps = new SrsKbps();
     client = NULL;
     _edge = NULL;
     _req = NULL;
     lb = new SrsLbRoundRobin();
     stream_id = 0;
-    stfd = NULL;
     pthread = new SrsReusableThread2("edge-fwr", this, SRS_EDGE_FORWARDER_SLEEP_US);
     queue = new SrsMessageQueue();
     send_error_code = ERROR_SUCCESS;
@@ -408,6 +396,7 @@ SrsEdgeForwarder::~SrsEdgeForwarder()
 {
     stop();
     
+    srs_freep(transport);
     srs_freep(lb);
     srs_freep(pthread);
     srs_freep(queue);
@@ -473,13 +462,11 @@ int SrsEdgeForwarder::start()
 void SrsEdgeForwarder::stop()
 {
     pthread->stop();
-    
-    close_underlayer_socket();
+    transport->close();
     
     queue->clear();
     
     srs_freep(client);
-    srs_freep(io);
     kbps->set_io(NULL, NULL);
 }
 
@@ -586,17 +573,12 @@ int SrsEdgeForwarder::proxy(SrsCommonMessage* msg)
     return ret;
 }
 
-void SrsEdgeForwarder::close_underlayer_socket()
-{
-    srs_close_stfd(stfd);
-}
-
 int SrsEdgeForwarder::connect_server(string& ep_server, int& ep_port)
 {
     int ret = ERROR_SUCCESS;
     
     // reopen
-    close_underlayer_socket();
+    transport->close();
     
     SrsConfDirective* conf = _srs_config->get_vhost_edge_origin(_req->vhost);
     srs_assert(conf);
@@ -610,20 +592,16 @@ int SrsEdgeForwarder::connect_server(string& ep_server, int& ep_port)
     
     // open socket.
     int64_t timeout = SRS_EDGE_FORWARDER_TIMEOUT_US;
-    if ((ret = srs_socket_connect(ep_server, ep_port, timeout, &stfd)) != ERROR_SUCCESS) {
+    if ((ret = transport->connect(ep_server, ep_port, timeout)) != ERROR_SUCCESS) {
         srs_warn("edge push failed, stream=%s, tcUrl=%s to server=%s, port=%d, timeout=%"PRId64", ret=%d",
             _req->stream.c_str(), _req->tcUrl.c_str(), ep_server.c_str(), ep_port, timeout, ret);
         return ret;
     }
     
     srs_freep(client);
-    srs_freep(io);
-    
-    srs_assert(stfd);
-    io = new SrsStSocket(stfd);
-    client = new SrsRtmpClient(io);
+    client = new SrsRtmpClient(transport);
     
-    kbps->set_io(io, io);
+    kbps->set_io(transport, transport);
     
     // open socket.
     srs_trace("edge push connected, stream=%s, tcUrl=%s to server=%s, port=%d",

@@ -47,6 +47,7 @@ class SrsMessageQueue;
 class ISrsProtocolReaderWriter;
 class SrsKbps;
 class SrsLbRoundRobin;
+class SrsTcpClient;
 
 /**
 * the state of edge, auto machine
@@ -85,8 +86,7 @@ private:
     SrsPlayEdge* _edge;
     SrsRequest* _req;
     SrsReusableThread2* pthread;
-    st_netfd_t stfd;
-    ISrsProtocolReaderWriter* io;
+    SrsTcpClient* transport;
     SrsKbps* kbps;
     SrsRtmpClient* client;
     SrsLbRoundRobin* lb;
@@ -103,7 +103,6 @@ public:
     virtual int cycle();
 private:
     virtual int ingest();
-    virtual void close_underlayer_socket();
     virtual int connect_server(std::string& ep_server, int& ep_port);
     virtual int connect_app(std::string ep_server, int ep_port);
     virtual int process_publish_message(SrsCommonMessage* msg);
@@ -121,8 +120,7 @@ private:
     SrsPublishEdge* _edge;
     SrsRequest* _req;
     SrsReusableThread2* pthread;
-    st_netfd_t stfd;
-    ISrsProtocolReaderWriter* io;
+    SrsTcpClient* transport;
     SrsKbps* kbps;
     SrsRtmpClient* client;
     SrsLbRoundRobin* lb;
@@ -152,7 +150,6 @@ public:
 public:
     virtual int proxy(SrsCommonMessage* msg);
 private:
-    virtual void close_underlayer_socket();
     virtual int connect_server(std::string& ep_server, int& ep_port);
     virtual int connect_app(std::string ep_server, int ep_port);
 };

@@ -54,9 +54,8 @@ SrsForwarder::SrsForwarder(SrsSource* _source)
     source = _source;
     
     _req = NULL;
-    io = NULL;
     client = NULL;
-    stfd = NULL;
+    transport = new SrsTcpClient();
     kbps = new SrsKbps();
     stream_id = 0;
 
@@ -71,6 +70,7 @@ SrsForwarder::~SrsForwarder()
 {
     on_unpublish();
     
+    srs_freep(transport);
     srs_freep(pthread);
     srs_freep(queue);
     srs_freep(jitter);
@@ -151,11 +151,9 @@ int SrsForwarder::on_publish()
 void SrsForwarder::on_unpublish()
 {
     pthread->stop();
-    
-    close_underlayer_socket();
+    transport->close();
     
     srs_freep(client);
-    srs_freep(io);
     kbps->set_io(NULL, NULL);
 }
 
@@ -271,11 +269,6 @@ int SrsForwarder::cycle()
     return ret;
 }
 
-void SrsForwarder::close_underlayer_socket()
-{
-    srs_close_stfd(stfd);
-}
-
 void SrsForwarder::discovery_ep(string& server, int& port, string& tc_url)
 {
     SrsRequest* req = _req;
@@ -292,7 +285,7 @@ int SrsForwarder::connect_server(string& ep_server, int& ep_port)
     int ret = ERROR_SUCCESS;
     
     // reopen
-    close_underlayer_socket();
+    transport->close();
     
     // discovery the server port and tcUrl from req and ep_forward.
     string tc_url;
@@ -300,20 +293,16 @@ int SrsForwarder::connect_server(string& ep_server, int& ep_port)
     
     // open socket.
     int64_t timeout = SRS_FORWARDER_SLEEP_US;
-    if ((ret = srs_socket_connect(ep_server, ep_port, timeout, &stfd)) != ERROR_SUCCESS) {
+    if ((ret = transport->connect(ep_server, ep_port, timeout)) != ERROR_SUCCESS) {
         srs_warn("forward failed, stream=%s, tcUrl=%s to server=%s, port=%d, timeout=%"PRId64", ret=%d",
             _req->stream.c_str(), _req->tcUrl.c_str(), ep_server.c_str(), ep_port, timeout, ret);
         return ret;
     }
     
     srs_freep(client);
-    srs_freep(io);
-    
-    srs_assert(stfd);
-    io = new SrsStSocket(stfd);
-    client = new SrsRtmpClient(io);
+    client = new SrsRtmpClient(transport);
     
-    kbps->set_io(io, io);
+    kbps->set_io(transport, transport);
     
     srs_trace("forward connected, stream=%s, tcUrl=%s to server=%s, port=%d",
         _req->stream.c_str(), _req->tcUrl.c_str(), ep_server.c_str(), ep_port);

@@ -56,11 +56,10 @@ private:
     SrsRequest* _req;
     int stream_id;
 private:
-    st_netfd_t stfd;
     SrsReusableThread2* pthread;
 private:
     SrsSource* source;
-    ISrsProtocolReaderWriter* io;
+    SrsTcpClient* transport;
     SrsKbps* kbps;
     SrsRtmpClient* client;
     SrsRtmpJitter* jitter;
@@ -99,7 +98,6 @@ public:
 public:
     virtual int cycle();
 private:
-    virtual void close_underlayer_socket();
     virtual void discovery_ep(std::string& server, int& port, std::string& tc_url);
     virtual int connect_server(std::string& ep_server, int& ep_port);
     virtual int connect_app(std::string ep_server, int ep_port);

@@ -39,9 +39,7 @@ using namespace std;
 
 SrsHttpClient::SrsHttpClient()
 {
-    connected = false;
-    stfd = NULL;
-    skt = NULL;
+    transport = new SrsTcpClient();
     parser = NULL;
     timeout_us = 0;
     port = 0;
@@ -50,6 +48,8 @@ SrsHttpClient::SrsHttpClient()
 SrsHttpClient::~SrsHttpClient()
 {
     disconnect();
+    
+    srs_freep(transport);
     srs_freep(parser);
 }
 
@@ -102,7 +102,7 @@ int SrsHttpClient::post(string path, string req, ISrsHttpMessage** ppmsg)
         << req;
     
     std::string data = ss.str();
-    if ((ret = skt->write((void*)data.c_str(), data.length(), NULL)) != ERROR_SUCCESS) {
+    if ((ret = transport->write((void*)data.c_str(), data.length(), NULL)) != ERROR_SUCCESS) {
         // disconnect when error.
         disconnect();
         
@@ -111,7 +111,7 @@ int SrsHttpClient::post(string path, string req, ISrsHttpMessage** ppmsg)
     }
     
     ISrsHttpMessage* msg = NULL;
-    if ((ret = parser->parse_message(skt, NULL, &msg)) != ERROR_SUCCESS) {
+    if ((ret = parser->parse_message(transport, NULL, &msg)) != ERROR_SUCCESS) {
         srs_error("parse http post response failed. ret=%d", ret);
         return ret;
     }
@@ -148,7 +148,7 @@ int SrsHttpClient::get(string path, std::string req, ISrsHttpMessage** ppmsg)
         << req;
 
     std::string data = ss.str();
-    if ((ret = skt->write((void*)data.c_str(), data.length(), NULL)) != ERROR_SUCCESS) {
+    if ((ret = transport->write((void*)data.c_str(), data.length(), NULL)) != ERROR_SUCCESS) {
         // disconnect when error.
         disconnect();
 
@@ -157,7 +157,7 @@ int SrsHttpClient::get(string path, std::string req, ISrsHttpMessage** ppmsg)
     }
 
     ISrsHttpMessage* msg = NULL;
-    if ((ret = parser->parse_message(skt, NULL, &msg)) != ERROR_SUCCESS) {
+    if ((ret = parser->parse_message(transport, NULL, &msg)) != ERROR_SUCCESS) {
         srs_error("parse http post response failed. ret=%d", ret);
         return ret;
     }
@@ -171,37 +171,30 @@ int SrsHttpClient::get(string path, std::string req, ISrsHttpMessage** ppmsg)
 
 void SrsHttpClient::disconnect()
 {
-    connected = false;
-    
-    srs_close_stfd(stfd);
-    srs_freep(skt);
+    transport->close();
 }
 
 int SrsHttpClient::connect()
 {
     int ret = ERROR_SUCCESS;
     
-    if (connected) {
+    if (transport->connected()) {
         return ret;
     }
     
     disconnect();
     
     // open socket.
-    if ((ret = srs_socket_connect(host, port, timeout_us, &stfd)) != ERROR_SUCCESS) {
+    if ((ret = transport->connect(host, port, timeout_us)) != ERROR_SUCCESS) {
         srs_warn("http client failed, server=%s, port=%d, timeout=%"PRId64", ret=%d",
             host.c_str(), port, timeout_us, ret);
         return ret;
     }
     srs_info("connect to server success. server=%s, port=%d", host.c_str(), port);
     
-    srs_assert(!skt);
-    skt = new SrsStSocket(stfd);
-    connected = true;
-    
     // set the recv/send timeout in us.
-    skt->set_recv_timeout(timeout_us);
-    skt->set_send_timeout(timeout_us);
+    transport->set_recv_timeout(timeout_us);
+    transport->set_send_timeout(timeout_us);
     
     return ret;
 }

@@ -49,9 +49,7 @@ class SrsStSocket;
 class SrsHttpClient
 {
 private:
-    bool connected;
-    st_netfd_t stfd;
-    SrsStSocket* skt;
+    SrsTcpClient* transport;
     SrsHttpParser* parser;
 private:
     int64_t timeout_us;

@@ -303,7 +303,7 @@ int SrsHttpResponseWriter::send_header(char* data, int size)
     return skt->write((void*)buf.c_str(), buf.length(), NULL);
 }
 
-SrsHttpResponseReader::SrsHttpResponseReader(SrsHttpMessage* msg, SrsStSocket* io)
+SrsHttpResponseReader::SrsHttpResponseReader(SrsHttpMessage* msg, ISrsProtocolReaderWriter* io)
 {
     skt = io;
     owner = msg;
@@ -494,7 +494,7 @@ int SrsHttpResponseReader::read_specified(char* data, int nb_data, int* nb_read)
     return ret;
 }
 
-SrsHttpMessage::SrsHttpMessage(SrsStSocket* io, SrsConnection* c) : ISrsHttpMessage()
+SrsHttpMessage::SrsHttpMessage(ISrsProtocolReaderWriter* io, SrsConnection* c) : ISrsHttpMessage()
 {
     conn = c;
     chunked = false;
@@ -870,7 +870,7 @@ int SrsHttpParser::initialize(enum http_parser_type type, bool allow_jsonp)
     return ret;
 }
 
-int SrsHttpParser::parse_message(SrsStSocket* skt, SrsConnection* conn, ISrsHttpMessage** ppmsg)
+int SrsHttpParser::parse_message(ISrsProtocolReaderWriter* io, SrsConnection* conn, ISrsHttpMessage** ppmsg)
 {
     *ppmsg = NULL;
     
@@ -887,7 +887,7 @@ int SrsHttpParser::parse_message(SrsStSocket* skt, SrsConnection* conn, ISrsHttp
     header_parsed = 0;
     
     // do parse
-    if ((ret = parse_message_imp(skt)) != ERROR_SUCCESS) {
+    if ((ret = parse_message_imp(io)) != ERROR_SUCCESS) {
         if (!srs_is_client_gracefully_close(ret)) {
             srs_error("parse http msg failed. ret=%d", ret);
         }
@@ -895,7 +895,7 @@ int SrsHttpParser::parse_message(SrsStSocket* skt, SrsConnection* conn, ISrsHttp
     }
     
     // create msg
-    SrsHttpMessage* msg = new SrsHttpMessage(skt, conn);
+    SrsHttpMessage* msg = new SrsHttpMessage(io, conn);
     
     // initalize http msg, parse url.
     if ((ret = msg->update(url, jsonp, &header, buffer, headers)) != ERROR_SUCCESS) {
@@ -910,7 +910,7 @@ int SrsHttpParser::parse_message(SrsStSocket* skt, SrsConnection* conn, ISrsHttp
     return ret;
 }
 
-int SrsHttpParser::parse_message_imp(SrsStSocket* skt)
+int SrsHttpParser::parse_message_imp(ISrsProtocolReaderWriter* io)
 {
     int ret = ERROR_SUCCESS;
     
@@ -944,7 +944,7 @@ int SrsHttpParser::parse_message_imp(SrsStSocket* skt)
         // when nothing parsed, read more to parse.
         if (nparsed == 0) {
             // when requires more, only grow 1bytes, but the buffer will cache more.
-            if ((ret = buffer->grow(skt, buffer->size() + 1)) != ERROR_SUCCESS) {
+            if ((ret = buffer->grow(io, buffer->size() + 1)) != ERROR_SUCCESS) {
                 if (!srs_is_client_gracefully_close(ret)) {
                     srs_error("read body from server failed. ret=%d", ret);
                 }

@@ -120,7 +120,7 @@ public:
 class SrsHttpResponseReader : virtual public ISrsHttpResponseReader
 {
 private:
-    SrsStSocket* skt;
+    ISrsProtocolReaderWriter* skt;
     SrsHttpMessage* owner;
     SrsFastStream* buffer;
     bool is_eof;
@@ -131,7 +131,7 @@ private:
     // already read total bytes.
     int64_t nb_total_read;
 public:
-    SrsHttpResponseReader(SrsHttpMessage* msg, SrsStSocket* io);
+    SrsHttpResponseReader(SrsHttpMessage* msg, ISrsProtocolReaderWriter* io);
     virtual ~SrsHttpResponseReader();
 public:
     /**
@@ -208,7 +208,7 @@ private:
     // the method in QueryString will override the HTTP method.
     std::string jsonp_method;
 public:
-    SrsHttpMessage(SrsStSocket* io, SrsConnection* c);
+    SrsHttpMessage(ISrsProtocolReaderWriter* io, SrsConnection* c);
     virtual ~SrsHttpMessage();
 public:
     /**
@@ -332,12 +332,12 @@ public:
      * or error and *ppmsg must be NULL.
      * @remark, if success, *ppmsg always NOT-NULL, *ppmsg always is_complete().
      */
-    virtual int parse_message(SrsStSocket* skt, SrsConnection* conn, ISrsHttpMessage** ppmsg);
+    virtual int parse_message(ISrsProtocolReaderWriter* io, SrsConnection* conn, ISrsHttpMessage** ppmsg);
 private:
     /**
      * parse the HTTP message to member field: msg.
      */
-    virtual int parse_message_imp(SrsStSocket* skt);
+    virtual int parse_message_imp(ISrsProtocolReaderWriter* io);
 private:
     static int on_message_begin(http_parser* parser);
     static int on_headers_complete(http_parser* parser);

@@ -132,9 +132,8 @@ SrsMpegtsOverUdp::SrsMpegtsOverUdp(SrsConfDirective* c)
     output = _srs_config->get_stream_caster_output(c);
     
     req = NULL;
-    io = NULL;
     client = NULL;
-    stfd = NULL;
+    transport = new SrsTcpClient();
     stream_id = 0;
     
     avc = new SrsRawH264Stream();
@@ -150,6 +149,7 @@ SrsMpegtsOverUdp::~SrsMpegtsOverUdp()
 {
     close();
 
+    srs_freep(transport);
     srs_freep(buffer);
     srs_freep(stream);
     srs_freep(context);
@@ -345,8 +345,8 @@ int SrsMpegtsOverUdp::on_ts_video(SrsTsMessage* msg, SrsBuffer* avs)
     }
 
     // ts tbn to flv tbn.
-    u_int32_t dts = msg->dts / 90; 
-    u_int32_t pts = msg->dts / 90;
+    u_int32_t dts = (u_int32_t)(msg->dts / 90);
+    u_int32_t pts = (u_int32_t)(msg->dts / 90);
     
     // send each frame.
     while (!avs->empty()) {
@@ -504,7 +504,7 @@ int SrsMpegtsOverUdp::on_ts_audio(SrsTsMessage* msg, SrsBuffer* avs)
     }
 
     // ts tbn to flv tbn.
-    u_int32_t dts = msg->dts / 90;
+    u_int32_t dts = (u_int32_t)(msg->dts / 90);
     
     // send each frame.
     while (!avs->empty()) {
@@ -604,7 +604,7 @@ int SrsMpegtsOverUdp::connect()
 
     // when ok, ignore.
     // TODO: FIXME: should reconnect when disconnected.
-    if (io || client) {
+    if (transport->connected()) {
         return ret;
     }
     
@@ -616,12 +616,13 @@ int SrsMpegtsOverUdp::connect()
     }
 
     // connect host.
-    if ((ret = srs_socket_connect(req->host, req->port, ST_UTIME_NO_TIMEOUT, &stfd)) != ERROR_SUCCESS) {
+    if ((ret = transport->connect(req->host, req->port, ST_UTIME_NO_TIMEOUT)) != ERROR_SUCCESS) {
         srs_error("mpegts: connect server %s:%d failed. ret=%d", req->host.c_str(), req->port, ret);
         return ret;
     }
-    io = new SrsStSocket(stfd);
-    client = new SrsRtmpClient(io);
+    
+    srs_freep(client);
+    client = new SrsRtmpClient(transport);
 
     client->set_recv_timeout(SRS_CONSTS_RTMP_RECV_TIMEOUT_US);
     client->set_send_timeout(SRS_CONSTS_RTMP_SEND_TIMEOUT_US);
@@ -704,9 +705,9 @@ int SrsMpegtsOverUdp::connect_app(string ep_server, int ep_port)
 void SrsMpegtsOverUdp::close()
 {
     srs_freep(client);
-    srs_freep(io);
     srs_freep(req);
-    srs_close_stfd(stfd);
+    
+    transport->close();
 }
 
 #endif

@@ -86,8 +86,7 @@ private:
     std::string output;
 private:
     SrsRequest* req;
-    st_netfd_t stfd;
-    SrsStSocket* io;
+    SrsTcpClient* transport;
     SrsRtmpClient* client;
     int stream_id;
 private:

@@ -1229,11 +1229,13 @@ int SrsRtmpConn::check_edge_token_traverse_auth()
     
     srs_assert(req);
     
-    st_netfd_t stsock = NULL;
+    SrsTcpClient* transport = new SrsTcpClient();
+    SrsAutoFree(SrsTcpClient, transport);
+    
     vector<string> args = _srs_config->get_vhost_edge_origin(req->vhost)->args;
     for (int i = 0; i < (int)args.size(); i++) {
         string hostport = args.at(i);
-        if ((ret = connect_server(hostport, &stsock)) == ERROR_SUCCESS) {
+        if ((ret = connect_server(hostport, transport)) == ERROR_SUCCESS) {
             break;
         }
     }
@@ -1242,20 +1244,13 @@ int SrsRtmpConn::check_edge_token_traverse_auth()
         return ret;
     }
     
-    srs_assert(stsock);
-    SrsStSocket* io = new SrsStSocket(stsock);
-    SrsRtmpClient* client = new SrsRtmpClient(io);
-    
-    ret = do_token_traverse_auth(client);
+    SrsRtmpClient* client = new SrsRtmpClient(transport);
+    SrsAutoFree(SrsRtmpClient, client);
     
-    srs_freep(client);
-    srs_freep(io);
-    srs_close_stfd(stsock);
-
-    return ret;
+    return do_token_traverse_auth(client);
 }
 
-int SrsRtmpConn::connect_server(string hostport, st_netfd_t* pstsock)
+int SrsRtmpConn::connect_server(string hostport, SrsTcpClient* transport)
 {
     int ret = ERROR_SUCCESS;
     
@@ -1268,16 +1263,14 @@ int SrsRtmpConn::connect_server(string hostport, st_netfd_t* pstsock)
     srs_parse_hostport(hostport, server, port);
     
     // open socket.
-    st_netfd_t stsock = NULL;
     int64_t timeout = SRS_EDGE_TOKEN_TRAVERSE_TIMEOUT_US;
-    if ((ret = srs_socket_connect(server, port, timeout, &stsock)) != ERROR_SUCCESS) {
+    if ((ret = transport->connect(server, port, timeout)) != ERROR_SUCCESS) {
         srs_warn("edge token traverse failed, tcUrl=%s to server=%s, port=%d, timeout=%"PRId64", ret=%d",
             req->tcUrl.c_str(), server.c_str(), port, timeout, ret);
         return ret;
     }
     srs_info("edge token auth connected, url=%s/%s, server=%s:%d", req->tcUrl.c_str(), req->stream.c_str(), server.c_str(), port);
     
-    *pstsock = stsock;
     return ret;
 }
 

@@ -134,7 +134,7 @@ private:
     virtual void set_sock_options();
 private:
     virtual int check_edge_token_traverse_auth();
-    virtual int connect_server(std::string hostport, st_netfd_t* pstsock);
+    virtual int connect_server(std::string hostport, SrsTcpClient* transport);
     virtual int do_token_traverse_auth(SrsRtmpClient* client);
     /**
      * when the connection disconnect, call this method.

@@ -195,8 +195,8 @@ SrsRtspConn::SrsRtspConn(SrsRtspCaster* c, st_netfd_t fd, std::string o)
     trd = new SrsOneCycleThread("rtsp", this);
 
     req = NULL;
-    io = NULL;
     client = NULL;
+    transport = new SrsTcpClient();
     stream_id = 0;
     vjitter = new SrsRtspJitter();
     ajitter = new SrsRtspJitter();
@@ -219,7 +219,7 @@ SrsRtspConn::~SrsRtspConn()
     srs_freep(rtsp);
     
     srs_freep(client);
-    srs_freep(io);
+    srs_freep(transport);
     srs_freep(req);
 
     srs_freep(vjitter);
@@ -254,7 +254,7 @@ int SrsRtspConn::do_cycle()
         srs_info("rtsp: got rtsp request");
 
         if (req->is_options()) {
-            SrsRtspOptionsResponse* res = new SrsRtspOptionsResponse(req->seq);
+            SrsRtspOptionsResponse* res = new SrsRtspOptionsResponse((int)req->seq);
             res->session = session;
             if ((ret = rtsp->send_message(res)) != ERROR_SUCCESS) {
                 if (!srs_is_client_gracefully_close(ret)) {
@@ -288,7 +288,7 @@ int SrsRtspConn::do_cycle()
                 audio_sample_rate, audio_channel, rtsp_tcUrl.c_str(), rtsp_stream.c_str()
             );
 
-            SrsRtspResponse* res = new SrsRtspResponse(req->seq);
+            SrsRtspResponse* res = new SrsRtspResponse((int)req->seq);
             res->session = session;
             if ((ret = rtsp->send_message(res)) != ERROR_SUCCESS) {
                 if (!srs_is_client_gracefully_close(ret)) {
@@ -328,7 +328,7 @@ int SrsRtspConn::do_cycle()
                 session = "O9EaZ4bf"; // TODO: FIXME: generate session id.
             }
 
-            SrsRtspSetupResponse* res = new SrsRtspSetupResponse(req->seq);
+            SrsRtspSetupResponse* res = new SrsRtspSetupResponse((int)req->seq);
             res->client_port_min = req->transport->client_port_min;
             res->client_port_max = req->transport->client_port_max;
             res->local_port_min = lpm;
@@ -341,7 +341,7 @@ int SrsRtspConn::do_cycle()
                 return ret;
             }
         } else if (req->is_record()) {
-            SrsRtspResponse* res = new SrsRtspResponse(req->seq);
+            SrsRtspResponse* res = new SrsRtspResponse((int)req->seq);
             res->session = session;
             if ((ret = rtsp->send_message(res)) != ERROR_SUCCESS) {
                 if (!srs_is_client_gracefully_close(ret)) {
@@ -434,7 +434,11 @@ int SrsRtspConn::on_rtp_video(SrsRtpPacket* pkt, int64_t dts, int64_t pts)
         return ret;
     }
 
-    if ((ret = write_h264_ipb_frame(pkt->payload->bytes(), pkt->payload->length(), dts / 90, pts / 90)) != ERROR_SUCCESS) {
+    char* bytes = pkt->payload->bytes();
+    int length = pkt->payload->length();
+    u_int32_t fdts = (u_int32_t)(dts / 90);
+    u_int32_t fpts = (u_int32_t)(pts / 90);
+    if ((ret = write_h264_ipb_frame(bytes, length, fdts, fpts)) != ERROR_SUCCESS) {
         return ret;
     }
 
@@ -476,7 +480,7 @@ int SrsRtspConn::kickoff_audio_cache(SrsRtpPacket* pkt, int64_t dts)
             int nb_frame = acache->audio_samples->sample_units[i].size;
             int64_t timestamp = (acache->dts + delta * i) / 90;
             acodec->aac_packet_type = 1;
-            if ((ret = write_audio_raw_frame(frame, nb_frame, acodec, timestamp)) != ERROR_SUCCESS) {
+            if ((ret = write_audio_raw_frame(frame, nb_frame, acodec, (u_int32_t)timestamp)) != ERROR_SUCCESS) {
                 return ret;
             }
         }
@@ -497,7 +501,7 @@ int SrsRtspConn::write_sequence_header()
     int64_t dts = vjitter->timestamp() / 90;
 
     // send video sps/pps
-    if ((ret = write_h264_sps_pps(dts, dts)) != ERROR_SUCCESS) {
+    if ((ret = write_h264_sps_pps((u_int32_t)dts, (u_int32_t)dts)) != ERROR_SUCCESS) {
         return ret;
     }
 
@@ -535,7 +539,7 @@ int SrsRtspConn::write_sequence_header()
                 break;
         };
 
-        if ((ret = write_audio_raw_frame((char*)sh.data(), (int)sh.length(), acodec, dts)) != ERROR_SUCCESS) {
+        if ((ret = write_audio_raw_frame((char*)sh.data(), (int)sh.length(), acodec, (u_int32_t)dts)) != ERROR_SUCCESS) {
             return ret;
         }
     }
@@ -642,7 +646,8 @@ int SrsRtspConn::connect()
     int ret = ERROR_SUCCESS;
 
     // when ok, ignore.
-    if (io || client) {
+    // TODO: FIXME: support reconnect.
+    if (transport->connected()) {
         return ret;
     }
     
@@ -663,12 +668,13 @@ int SrsRtspConn::connect()
     }
 
     // connect host.
-    if ((ret = srs_socket_connect(req->host, req->port, ST_UTIME_NO_TIMEOUT, &stfd)) != ERROR_SUCCESS) {
+    if ((ret = transport->connect(req->host, req->port, ST_UTIME_NO_TIMEOUT)) != ERROR_SUCCESS) {
         srs_error("rtsp: connect server %s:%d failed. ret=%d", req->host.c_str(), req->port, ret);
         return ret;
     }
-    io = new SrsStSocket(stfd);
-    client = new SrsRtmpClient(io);
+    
+    srs_freep(client);
+    client = new SrsRtmpClient(transport);
 
     client->set_recv_timeout(SRS_CONSTS_RTMP_RECV_TIMEOUT_US);
     client->set_send_timeout(SRS_CONSTS_RTMP_SEND_TIMEOUT_US);

@@ -139,7 +139,7 @@ private:
     SrsOneCycleThread* trd;
 private:
     SrsRequest* req;
-    SrsStSocket* io;
+    SrsTcpClient* transport;
     SrsRtmpClient* client;
     SrsRtspJitter* vjitter;
     SrsRtspJitter* ajitter;

@@ -637,8 +637,7 @@ private:
     int64_t raw_aac_dts;
 private:
     SrsRequest* req;
-    st_netfd_t stfd;
-    SrsStSocket* io;
+    SrsTcpClient* transport;
     SrsRtmpClient* client;
     int stream_id;
 private:
@@ -658,9 +657,8 @@ public:
         raw_aac_dts = srs_update_system_time_ms();
         
         req = NULL;
-        io = NULL;
         client = NULL;
-        stfd = NULL;
+        transport = new SrsTcpClient();
         stream_id = 0;
         
         avc = new SrsRawH264Stream();
@@ -672,6 +670,7 @@ public:
     virtual ~SrsIngestSrsOutput() {
         close();
         
+        srs_freep(transport);
         srs_freep(avc);
         srs_freep(aac);
         
@@ -1211,7 +1210,7 @@ int SrsIngestSrsOutput::connect()
     
     // when ok, ignore.
     // TODO: FIXME: should reconnect when disconnected.
-    if (io || client) {
+    if (transport->connected()) {
         return ret;
     }
     
@@ -1235,12 +1234,13 @@ int SrsIngestSrsOutput::connect()
     }
     
     // connect host.
-    if ((ret = srs_socket_connect(req->host, req->port, ST_UTIME_NO_TIMEOUT, &stfd)) != ERROR_SUCCESS) {
+    if ((ret = transport->connect(req->host, req->port, ST_UTIME_NO_TIMEOUT)) != ERROR_SUCCESS) {
         srs_error("mpegts: connect server %s:%d failed. ret=%d", req->host.c_str(), req->port, ret);
         return ret;
     }
-    io = new SrsStSocket(stfd);
-    client = new SrsRtmpClient(io);
+    
+    srs_freep(client);
+    client = new SrsRtmpClient(transport);
     
     client->set_recv_timeout(SRS_CONSTS_RTMP_RECV_TIMEOUT_US);
     client->set_send_timeout(SRS_CONSTS_RTMP_SEND_TIMEOUT_US);
@@ -1326,9 +1326,9 @@ void SrsIngestSrsOutput::close()
     h264_sps_pps_sent = false;
     
     srs_freep(client);
-    srs_freep(io);
     srs_freep(req);
-    srs_close_stfd(stfd);
+    
+    transport->close();
 }
 
 // the context for ingest hls stream.