diff --git a/trunk/conf/full.conf b/trunk/conf/full.conf
index ad5966801..5bc8bed9f 100644
--- a/trunk/conf/full.conf
+++ b/trunk/conf/full.conf
@@ -102,9 +102,10 @@ vhost ingest.srs.com {
         input {
             # the type of input.
             # can be file/stream/device, that is,
-            # file: ingest file specifies by url.
-            # stream: ingest stream specifeis by url.
-            # devide: not support yet.
+            #   file: ingest file specifies by url.
+            #   stream: ingest stream specifeis by url.
+            #   device: not support yet.
+            # default: file
             type    file;
             # the url of file/stream.
             url     ./doc/source.200kbps.768x320.flv;
@@ -810,6 +811,9 @@ pithy_print {
     # shared print interval for all encoders, in milliseconds.
     # if not specified, set to 2000.
     encoder        3000;
+    # shared print interval for all ingesters, in milliseconds.
+    # if not specified, set to 2000.
+    ingester       3000;
     # shared print interval for all hls, in milliseconds.
     # if not specified, set to 2000.
     hls            3000;
diff --git a/trunk/src/app/srs_app_config.cpp b/trunk/src/app/srs_app_config.cpp
index 8c7ca5837..7335d9797 100644
--- a/trunk/src/app/srs_app_config.cpp
+++ b/trunk/src/app/srs_app_config.cpp
@@ -847,12 +847,12 @@ int SrsConfig::get_pithy_print_forwarder()
 
 int SrsConfig::get_pithy_print_encoder()
 {
-    SrsConfDirective* pithy = root->get("encoder");
+    SrsConfDirective* pithy = root->get("pithy_print");
     if (!pithy) {
         return SRS_STAGE_ENCODER_INTERVAL_MS;
     }
     
-    pithy = pithy->get("forwarder");
+    pithy = pithy->get("encoder");
     if (!pithy) {
         return SRS_STAGE_ENCODER_INTERVAL_MS;
     }
@@ -860,6 +860,21 @@ int SrsConfig::get_pithy_print_encoder()
     return ::atoi(pithy->arg0().c_str());
 }
 
+int SrsConfig::get_pithy_print_ingester()
+{
+    SrsConfDirective* pithy = root->get("pithy_print");
+    if (!pithy) {
+        return SRS_STAGE_INGESTER_INTERVAL_MS;
+    }
+    
+    pithy = pithy->get("ingester");
+    if (!pithy) {
+        return SRS_STAGE_INGESTER_INTERVAL_MS;
+    }
+    
+    return ::atoi(pithy->arg0().c_str());
+}
+
 int SrsConfig::get_pithy_print_hls()
 {
     SrsConfDirective* pithy = root->get("pithy_print");
@@ -1645,10 +1660,33 @@ string SrsConfig::get_ingest_ffmpeg(SrsConfDirective* ingest)
     return conf->arg0();
 }
 
-string SrsConfig::get_ingest_input(SrsConfDirective* ingest)
+string SrsConfig::get_ingest_input_type(SrsConfDirective* ingest)
 {
     SrsConfDirective* conf = ingest->get("input");
     
+    if (!conf) {
+        return SRS_INGEST_TYPE_FILE;
+    }
+
+    conf = conf->get("type");
+    
+    if (!conf) {
+        return SRS_INGEST_TYPE_FILE;
+    }
+    
+    return conf->arg0();
+}
+
+string SrsConfig::get_ingest_input_url(SrsConfDirective* ingest)
+{
+    SrsConfDirective* conf = ingest->get("input");
+    
+    if (!conf) {
+        return "";
+    }
+
+    conf = conf->get("url");
+    
     if (!conf) {
         return "";
     }
diff --git a/trunk/src/app/srs_app_config.hpp b/trunk/src/app/srs_app_config.hpp
index 7a5d6462e..5b467eeee 100644
--- a/trunk/src/app/srs_app_config.hpp
+++ b/trunk/src/app/srs_app_config.hpp
@@ -66,8 +66,11 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define SRS_STAGE_PUBLISH_USER_INTERVAL_MS 1100
 #define SRS_STAGE_FORWARDER_INTERVAL_MS 2000
 #define SRS_STAGE_ENCODER_INTERVAL_MS 2000
+#define SRS_STAGE_INGESTER_INTERVAL_MS 2000
 #define SRS_STAGE_HLS_INTERVAL_MS 2000
 
+#define SRS_INGEST_TYPE_FILE "file"
+
 class SrsFileBuffer;
 
 class SrsConfDirective
@@ -134,6 +137,7 @@ public:
     virtual int                 get_pithy_print_publish();
     virtual int                 get_pithy_print_forwarder();
     virtual int                 get_pithy_print_encoder();
+    virtual int                 get_pithy_print_ingester();
     virtual int                 get_pithy_print_hls();
     virtual int                 get_pithy_print_play();
 // vhost section
@@ -190,7 +194,8 @@ public:
     virtual void                get_ingesters(std::string vhost, std::vector<SrsConfDirective*>& ingeters);
     virtual bool                get_ingest_enabled(SrsConfDirective* ingest);
     virtual std::string         get_ingest_ffmpeg(SrsConfDirective* ingest);
-    virtual std::string         get_ingest_input(SrsConfDirective* ingest);
+    virtual std::string         get_ingest_input_type(SrsConfDirective* ingest);
+    virtual std::string         get_ingest_input_url(SrsConfDirective* ingest);
 // log section
 public:
     virtual bool                get_srs_log_tank_file();
diff --git a/trunk/src/app/srs_app_encoder.cpp b/trunk/src/app/srs_app_encoder.cpp
index af018d8e7..8bdea5bfd 100644
--- a/trunk/src/app/srs_app_encoder.cpp
+++ b/trunk/src/app/srs_app_encoder.cpp
@@ -99,13 +99,13 @@ int SrsEncoder::cycle()
         
         // start all ffmpegs.
         if ((ret = ffmpeg->start()) != ERROR_SUCCESS) {
-            srs_error("ffmpeg start failed. ret=%d", ret);
+            srs_error("transcode ffmpeg start failed. ret=%d", ret);
             return ret;
         }
 
         // check ffmpeg status.
         if ((ret = ffmpeg->cycle()) != ERROR_SUCCESS) {
-            srs_error("ffmpeg cycle failed. ret=%d", ret);
+            srs_error("transcode ffmpeg cycle failed. ret=%d", ret);
             return ret;
         }
     }
diff --git a/trunk/src/app/srs_app_ffmpeg.cpp b/trunk/src/app/srs_app_ffmpeg.cpp
index 3c1079add..8e7b1c3b1 100644
--- a/trunk/src/app/srs_app_ffmpeg.cpp
+++ b/trunk/src/app/srs_app_ffmpeg.cpp
@@ -73,6 +73,11 @@ SrsFFMPEG::~SrsFFMPEG()
     stop();
 }
 
+void SrsFFMPEG::set_iparams(string iparams)
+{
+    _iparams = iparams;
+}
+
 string SrsFFMPEG::output()
 {
     return _output;
@@ -232,6 +237,11 @@ int SrsFFMPEG::start()
     // the filename associated  with  the file being executed.
     params.push_back(ffmpeg);
     
+    // input params
+    if (!_iparams.empty()) {
+        params.push_back(_iparams);
+    }
+    
     // input.
     params.push_back("-f");
     params.push_back("flv");
diff --git a/trunk/src/app/srs_app_ffmpeg.hpp b/trunk/src/app/srs_app_ffmpeg.hpp
index 6121eb3e0..92ae68424 100644
--- a/trunk/src/app/srs_app_ffmpeg.hpp
+++ b/trunk/src/app/srs_app_ffmpeg.hpp
@@ -51,6 +51,7 @@ private:
     int log_fd;
 private:
     std::string                 ffmpeg;
+    std::string                 _iparams;
     std::vector<std::string>    vfilter;
     std::string                 vcodec;
     int                         vbitrate;
@@ -72,6 +73,7 @@ public:
     SrsFFMPEG(std::string ffmpeg_bin);
     virtual ~SrsFFMPEG();
 public:
+    virtual void set_iparams(std::string iparams);
     virtual std::string output();
 public:
     virtual int initialize(std::string in, std::string out, std::string log);
diff --git a/trunk/src/app/srs_app_ingest.cpp b/trunk/src/app/srs_app_ingest.cpp
index a5b3cd8b8..1b1e64699 100644
--- a/trunk/src/app/srs_app_ingest.cpp
+++ b/trunk/src/app/srs_app_ingest.cpp
@@ -29,6 +29,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <srs_app_config.hpp>
 #include <srs_kernel_log.hpp>
 #include <srs_app_ffmpeg.hpp>
+#include <srs_app_pithy_print.hpp>
 
 // when error, ingester sleep for a while and retry.
 #define SRS_INGESTER_SLEEP_US (int64_t)(3*1000*1000LL)
@@ -37,6 +38,7 @@ SrsIngester::SrsIngester()
 {
     // TODO: FIXME: support reload.
     pthread = new SrsThread(this, SRS_INGESTER_SLEEP_US);
+    pithy_print = new SrsPithyPrint(SRS_STAGE_INGESTER);
 }
 
 SrsIngester::~SrsIngester()
@@ -55,6 +57,17 @@ int SrsIngester::start()
         return ret;
     }
     
+    // return for error or no engine.
+    if (ffmpegs.empty()) {
+        return ret;
+    }
+    
+    // start thread to run all encoding engines.
+    if ((ret = pthread->start()) != ERROR_SUCCESS) {
+        srs_error("st_thread_create failed. ret=%d", ret);
+        return ret;
+    }
+    
     return ret;
 }
 
@@ -96,7 +109,7 @@ int SrsIngester::parse_engines(SrsConfDirective* vhost, SrsConfDirective* ingest
     _srs_config->get_transcode_engines(ingest, engines);
     if (engines.empty()) {
         SrsFFMPEG* ffmpeg = new SrsFFMPEG(ffmpeg_bin);
-        if ((ret = initialize_ffmpeg(ffmpeg, ingest, NULL)) != ERROR_SUCCESS) {
+        if ((ret = initialize_ffmpeg(ffmpeg, vhost, ingest, NULL)) != ERROR_SUCCESS) {
             srs_freep(ffmpeg);
             if (ret != ERROR_ENCODER_LOOP) {
                 srs_error("invalid ingest engine. ret=%d", ret);
@@ -112,7 +125,7 @@ int SrsIngester::parse_engines(SrsConfDirective* vhost, SrsConfDirective* ingest
     for (int i = 0; i < (int)engines.size(); i++) {
         SrsConfDirective* engine = engines[i];
         SrsFFMPEG* ffmpeg = new SrsFFMPEG(ffmpeg_bin);
-        if ((ret = initialize_ffmpeg(ffmpeg, ingest, engine)) != ERROR_SUCCESS) {
+        if ((ret = initialize_ffmpeg(ffmpeg, vhost, ingest, engine)) != ERROR_SUCCESS) {
             srs_freep(ffmpeg);
             if (ret != ERROR_ENCODER_LOOP) {
                 srs_error("invalid ingest engine: %s %s", ingest->arg0().c_str(), engine->arg0().c_str());
@@ -128,11 +141,35 @@ int SrsIngester::parse_engines(SrsConfDirective* vhost, SrsConfDirective* ingest
 
 void SrsIngester::stop()
 {
+    pthread->stop();
+    clear_engines();
 }
 
 int SrsIngester::cycle()
 {
     int ret = ERROR_SUCCESS;
+    
+    std::vector<SrsFFMPEG*>::iterator it;
+    for (it = ffmpegs.begin(); it != ffmpegs.end(); ++it) {
+        SrsFFMPEG* ffmpeg = *it;
+        
+        // start all ffmpegs.
+        if ((ret = ffmpeg->start()) != ERROR_SUCCESS) {
+            srs_error("ingest ffmpeg start failed. ret=%d", ret);
+            return ret;
+        }
+
+        // check ffmpeg status.
+        if ((ret = ffmpeg->cycle()) != ERROR_SUCCESS) {
+            srs_error("ingest ffmpeg cycle failed. ret=%d", ret);
+            return ret;
+        }
+    }
+
+    // pithy print
+    ingester();
+    pithy_print->elapse(SRS_INGESTER_SLEEP_US / 1000);
+    
     return ret;
 }
 
@@ -170,21 +207,109 @@ int SrsIngester::parse()
     return ret;
 }
 
-int SrsIngester::initialize_ffmpeg(SrsFFMPEG* ffmpeg, SrsConfDirective* ingest, SrsConfDirective* engine)
+int SrsIngester::initialize_ffmpeg(SrsFFMPEG* ffmpeg, SrsConfDirective* vhost, SrsConfDirective* ingest, SrsConfDirective* engine)
 {
     int ret = ERROR_SUCCESS;
     
-    std::string input = _srs_config->get_ingest_input(ingest);
-    if (input.empty()) {
+    SrsConfDirective* listen = _srs_config->get_listen();
+    srs_assert(listen->args.size() > 0);
+    std::string port = listen->arg0();
+    
+    std::string output = _srs_config->get_engine_output(engine);
+    // output stream, to other/self server
+    // ie. rtmp://127.0.0.1:1935/live/livestream_sd
+    output = srs_string_replace(output, "[vhost]", vhost->arg0());
+    output = srs_string_replace(output, "[port]", port);
+    if (output.empty()) {
+        ret = ERROR_ENCODER_NO_OUTPUT;
+        srs_trace("empty ingest output url. ret=%d", ret);
+        return ret;
+    }
+    
+    // find the app and stream in rtmp url
+    std::string url = output;
+    std::string app, stream;
+    size_t pos = std::string::npos;
+    if ((pos = url.rfind("/")) != std::string::npos) {
+        stream = url.substr(pos + 1);
+        url = url.substr(0, pos);
+    }
+    if ((pos = url.rfind("/")) != std::string::npos) {
+        app = url.substr(pos + 1);
+        url = url.substr(0, pos);
+    }
+    if ((pos = app.rfind("?")) != std::string::npos) {
+        app = app.substr(0, pos);
+    }
+    
+    std::string log_file;
+    // write ffmpeg info to log file.
+    log_file = _srs_config->get_ffmpeg_log_dir();
+    log_file += "/";
+    log_file += "ingest";
+    log_file += "-";
+    log_file += vhost->arg0();
+    log_file += "-";
+    log_file += app;
+    log_file += "-";
+    log_file += stream;
+    log_file += ".log";
+
+    // stream name: vhost/app/stream for print
+    input_stream_name = vhost->arg0();
+    input_stream_name += "/";
+    input_stream_name += app;
+    input_stream_name += "/";
+    input_stream_name += stream;
+    
+    // input
+    std::string input_type = _srs_config->get_ingest_input_type(ingest);
+    if (input_type.empty()) {
         ret = ERROR_ENCODER_NO_INPUT;
-        srs_trace("empty ingest intput. ret=%d", ret);
+        srs_trace("empty ingest intput type. ret=%d", ret);
         return ret;
     }
+
+    if (input_type == SRS_INGEST_TYPE_FILE) {
+        std::string input_url = _srs_config->get_ingest_input_url(ingest);
+        if (input_url.empty()) {
+            ret = ERROR_ENCODER_NO_INPUT;
+            srs_trace("empty ingest intput url. ret=%d", ret);
+            return ret;
+        }
+        
+        // for file, set re.
+        ffmpeg->set_iparams("-re");
+    
+        if ((ret = ffmpeg->initialize(input_url, output, log_file)) != ERROR_SUCCESS) {
+            return ret;
+        }
+    } else {
+        ret = ERROR_ENCODER_INPUT_TYPE;
+        srs_error("invalid ingest type=%s, ret=%d", input_type.c_str(), ret);
+    }
     
     if (!engine || !_srs_config->get_engine_enabled(engine)) {
+        if ((ret = ffmpeg->initialize_copy()) != ERROR_SUCCESS) {
+            return ret;
+        }
+    } else {
+        if ((ret = ffmpeg->initialize_transcode(engine)) != ERROR_SUCCESS) {
+            return ret;
+        }
     }
     
     return ret;
 }
 
+void SrsIngester::ingester()
+{
+    // reportable
+    if (pithy_print->can_print()) {
+        // TODO: FIXME: show more info.
+        srs_trace("-> time=%"PRId64", ingesters=%d, input=%s", 
+            pithy_print->get_age(), (int)ffmpegs.size(), input_stream_name.c_str());
+    }
+}
+
 #endif
diff --git a/trunk/src/app/srs_app_ingest.hpp b/trunk/src/app/srs_app_ingest.hpp
index 34dd4843e..af8f109dd 100644
--- a/trunk/src/app/srs_app_ingest.hpp
+++ b/trunk/src/app/srs_app_ingest.hpp
@@ -37,6 +37,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 class SrsFFMPEG;
 class SrsConfDirective;
+class SrsPithyPrint;
 
 /**
 * ingest file/stream/device, 
@@ -46,9 +47,11 @@ class SrsConfDirective;
 class SrsIngester : public ISrsThreadHandler
 {
 private:
+    std::string input_stream_name;
     std::vector<SrsFFMPEG*> ffmpegs;
 private:
     SrsThread* pthread;
+    SrsPithyPrint* pithy_print;
 public:
     SrsIngester();
     virtual ~SrsIngester();
@@ -64,7 +67,8 @@ private:
     virtual int parse();
     virtual int parse_ingesters(SrsConfDirective* vhost);
     virtual int parse_engines(SrsConfDirective* vhost, SrsConfDirective* ingest);
-    virtual int initialize_ffmpeg(SrsFFMPEG* ffmpeg, SrsConfDirective* ingest, SrsConfDirective* engine);
+    virtual int initialize_ffmpeg(SrsFFMPEG* ffmpeg, SrsConfDirective* vhost, SrsConfDirective* ingest, SrsConfDirective* engine);
+    virtual void ingester();
 };
 
 #endif
diff --git a/trunk/src/app/srs_app_pithy_print.cpp b/trunk/src/app/srs_app_pithy_print.cpp
index 6438021d8..cca72c687 100644
--- a/trunk/src/app/srs_app_pithy_print.cpp
+++ b/trunk/src/app/srs_app_pithy_print.cpp
@@ -71,6 +71,10 @@ struct SrsStageInfo : public ISrsReloadHandler
                 pithy_print_time_ms = _srs_config->get_pithy_print_encoder();
                 break;
             }
+            case SRS_STAGE_INGESTER: {
+                pithy_print_time_ms = _srs_config->get_pithy_print_ingester();
+                break;
+            }
             case SRS_STAGE_HLS: {
                 pithy_print_time_ms = _srs_config->get_pithy_print_hls();
                 break;
@@ -108,7 +112,8 @@ int SrsPithyPrint::enter_stage()
     
     std::map<int, SrsStageInfo*>::iterator it = _srs_stages.find(stage_id);
     if (it == _srs_stages.end()) {
-        stage = _srs_stages[stage_id] = new SrsStageInfo(stage_id);
+        stage = new SrsStageInfo(stage_id);
+        _srs_stages[stage_id] = stage;
     } else {
         stage = it->second;
     }
diff --git a/trunk/src/app/srs_app_pithy_print.hpp b/trunk/src/app/srs_app_pithy_print.hpp
index d15f65aa5..518584809 100644
--- a/trunk/src/app/srs_app_pithy_print.hpp
+++ b/trunk/src/app/srs_app_pithy_print.hpp
@@ -40,6 +40,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define SRS_STAGE_ENCODER 4
 // the pithy stage for all hls.
 #define SRS_STAGE_HLS 5
+// the pithy stage for all ingesters.
+#define SRS_STAGE_INGESTER 6
 
 /**
 * the stage is used for a collection of object to do print,
diff --git a/trunk/src/app/srs_app_server.cpp b/trunk/src/app/srs_app_server.cpp
index e6fde04ec..b31ec9023 100644
--- a/trunk/src/app/srs_app_server.cpp
+++ b/trunk/src/app/srs_app_server.cpp
@@ -164,13 +164,13 @@ SrsServer::SrsServer()
     _srs_config->subscribe(this);
     
 #ifdef SRS_HTTP_API
-    http_api_handler = SrsHttpHandler::create_http_api();
+    http_api_handler = NULL;
 #endif
 #ifdef SRS_HTTP_SERVER
-    http_stream_handler = SrsHttpHandler::create_http_stream();
+    http_stream_handler = NULL;
 #endif
 #ifdef SRS_INGEST
-    ingester = new SrsIngester();
+    ingester = NULL;
 #endif
 }
 
@@ -205,6 +205,19 @@ int SrsServer::initialize()
 {
     int ret = ERROR_SUCCESS;
     
+#ifdef SRS_HTTP_API
+    srs_assert(!http_api_handler);
+    http_api_handler = SrsHttpHandler::create_http_api();
+#endif
+#ifdef SRS_HTTP_SERVER
+    srs_assert(!http_stream_handler);
+    http_stream_handler = SrsHttpHandler::create_http_stream();
+#endif
+#ifdef SRS_INGEST
+    srs_assert(!ingester);
+    ingester = new SrsIngester();
+#endif
+    
 #ifdef SRS_HTTP_API
     if ((ret = http_api_handler->initialize()) != ERROR_SUCCESS) {
         return ret;
diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
old mode 100644
new mode 100755
index ffa750078..fb886e6e8
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -1,127 +1,127 @@
-/*
-The MIT License (MIT)
-
-Copyright (c) 2013-2014 winlin
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#ifndef SRS_CORE_HPP
-#define SRS_CORE_HPP
-
-/*
-#include <srs_core.hpp>
-*/
-
-// current release version
-#define VERSION_MAJOR "0"
-#define VERSION_MINOR "9"
-#define VERSION_REVISION "52"
-#define RTMP_SIG_SRS_VERSION VERSION_MAJOR"."VERSION_MINOR"."VERSION_REVISION
-// server info.
-#define RTMP_SIG_SRS_KEY "srs"
-#define RTMP_SIG_SRS_ROLE "origin server"
-#define RTMP_SIG_SRS_NAME RTMP_SIG_SRS_KEY"(simple rtmp server)"
-#define RTMP_SIG_SRS_URL "https://"RTMP_SIG_SRS_URL_SHORT
-#define RTMP_SIG_SRS_URL_SHORT "github.com/winlinvip/simple-rtmp-server"
-#define RTMP_SIG_SRS_WEB "http://blog.csdn.net/win_lin"
-#define RTMP_SIG_SRS_EMAIL "winlin@vip.126.com"
-#define RTMP_SIG_SRS_LICENSE "The MIT License (MIT)"
-#define RTMP_SIG_SRS_COPYRIGHT "Copyright (c) 2013-2014 winlin"
-#define RTMP_SIG_SRS_PRIMARY_AUTHROS "winlin,wenjie.zhao"
-#define RTMP_SIG_SRS_CONTRIBUTORS_URL "https://github.com/winlinvip/simple-rtmp-server/blob/master/AUTHORS.txt"
-
-/**
-* the core provides the common defined macros, utilities,
-* user must include the srs_core.hpp before any header, or maybe 
-* build failed.
-*/
-
-// for 32bit os, 2G big file limit for unistd io, 
-// ie. read/write/lseek to use 64bits size for huge file.
-#ifndef _FILE_OFFSET_BITS
-    #define _FILE_OFFSET_BITS 64
-#endif
-
-// for int64_t print using PRId64 format.
-#ifndef __STDC_FORMAT_MACROS
-    #define __STDC_FORMAT_MACROS
-#endif
-#include <inttypes.h>
-
-#include <assert.h>
-#define srs_assert(expression) assert(expression)
-
-#include <stddef.h>
-#include <sys/types.h>
-
-// generated by configure.
-#include <srs_auto_headers.hpp>
-
-// free the p and set to NULL.
-// p must be a T*.
-#define srs_freep(p) \
-    if (p) { \
-        delete p; \
-        p = NULL; \
-    } \
-    (void)0
-// free the p which represents a array
-#define srs_freepa(p) \
-    if (p) { \
-        delete[] p; \
-        p = NULL; \
-    } \
-    (void)0
-
-// compare
-#define srs_min(a, b) (((a) < (b))? (a) : (b))
-#define srs_max(a, b) (((a) < (b))? (b) : (a))
-
-// signal defines.
-#define SIGNAL_RELOAD SIGHUP
-
-#include <string>
-// replace old_str to new_str of str
-extern std::string srs_string_replace(std::string str, std::string old_str, std::string new_str);
-// trim char in trim_chars of str
-extern std::string srs_string_trim_end(std::string str, std::string trim_chars);
-// trim char in trim_chars of str
-extern std::string srs_string_trim_start(std::string str, std::string trim_chars);
-// remove char in remove_chars of str
-extern std::string srs_string_remove(std::string str, std::string remove_chars);
-// whether string end with
-extern bool srs_string_ends_with(std::string str, std::string flag);
-
-// dns resolve utility, return the resolved ip address.
-extern std::string srs_dns_resolve(std::string host);
-// whether system is little endian
-extern bool srs_is_little_endian();
-
-/**
-* disable copy constructor of class
-*/
-#define disable_default_copy(className)\
-    private:\
-        /** \
-        * disable the copy constructor and operator=, donot allow directly copy. \
-        */ \
-        className(const className&); \
-        className& operator= (const className&)
-
+/*
+The MIT License (MIT)
+
+Copyright (c) 2013-2014 winlin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#ifndef SRS_CORE_HPP
+#define SRS_CORE_HPP
+
+/*
+#include <srs_core.hpp>
+*/
+
+// current release version
+#define VERSION_MAJOR "0"
+#define VERSION_MINOR "9"
+#define VERSION_REVISION "53"
+#define RTMP_SIG_SRS_VERSION VERSION_MAJOR"."VERSION_MINOR"."VERSION_REVISION
+// server info.
+#define RTMP_SIG_SRS_KEY "srs"
+#define RTMP_SIG_SRS_ROLE "origin server"
+#define RTMP_SIG_SRS_NAME RTMP_SIG_SRS_KEY"(simple rtmp server)"
+#define RTMP_SIG_SRS_URL "https://"RTMP_SIG_SRS_URL_SHORT
+#define RTMP_SIG_SRS_URL_SHORT "github.com/winlinvip/simple-rtmp-server"
+#define RTMP_SIG_SRS_WEB "http://blog.csdn.net/win_lin"
+#define RTMP_SIG_SRS_EMAIL "winlin@vip.126.com"
+#define RTMP_SIG_SRS_LICENSE "The MIT License (MIT)"
+#define RTMP_SIG_SRS_COPYRIGHT "Copyright (c) 2013-2014 winlin"
+#define RTMP_SIG_SRS_PRIMARY_AUTHROS "winlin,wenjie.zhao"
+#define RTMP_SIG_SRS_CONTRIBUTORS_URL "https://github.com/winlinvip/simple-rtmp-server/blob/master/AUTHORS.txt"
+
+/**
+* the core provides the common defined macros, utilities,
+* user must include the srs_core.hpp before any header, or maybe 
+* build failed.
+*/
+
+// for 32bit os, 2G big file limit for unistd io, 
+// ie. read/write/lseek to use 64bits size for huge file.
+#ifndef _FILE_OFFSET_BITS
+    #define _FILE_OFFSET_BITS 64
+#endif
+
+// for int64_t print using PRId64 format.
+#ifndef __STDC_FORMAT_MACROS
+    #define __STDC_FORMAT_MACROS
+#endif
+#include <inttypes.h>
+
+#include <assert.h>
+#define srs_assert(expression) assert(expression)
+
+#include <stddef.h>
+#include <sys/types.h>
+
+// generated by configure.
+#include <srs_auto_headers.hpp>
+
+// free the p and set to NULL.
+// p must be a T*.
+#define srs_freep(p) \
+    if (p) { \
+        delete p; \
+        p = NULL; \
+    } \
+    (void)0
+// free the p which represents a array
+#define srs_freepa(p) \
+    if (p) { \
+        delete[] p; \
+        p = NULL; \
+    } \
+    (void)0
+
+// compare
+#define srs_min(a, b) (((a) < (b))? (a) : (b))
+#define srs_max(a, b) (((a) < (b))? (b) : (a))
+
+// signal defines.
+#define SIGNAL_RELOAD SIGHUP
+
+#include <string>
+// replace old_str to new_str of str
+extern std::string srs_string_replace(std::string str, std::string old_str, std::string new_str);
+// trim char in trim_chars of str
+extern std::string srs_string_trim_end(std::string str, std::string trim_chars);
+// trim char in trim_chars of str
+extern std::string srs_string_trim_start(std::string str, std::string trim_chars);
+// remove char in remove_chars of str
+extern std::string srs_string_remove(std::string str, std::string remove_chars);
+// whether string end with
+extern bool srs_string_ends_with(std::string str, std::string flag);
+
+// dns resolve utility, return the resolved ip address.
+extern std::string srs_dns_resolve(std::string host);
+// whether system is little endian
+extern bool srs_is_little_endian();
+
+/**
+* disable copy constructor of class
+*/
+#define disable_default_copy(className)\
+    private:\
+        /** \
+        * disable the copy constructor and operator=, donot allow directly copy. \
+        */ \
+        className(const className&); \
+        className& operator= (const className&)
+
 #endif
\ No newline at end of file
diff --git a/trunk/src/kernel/srs_kernel_error.hpp b/trunk/src/kernel/srs_kernel_error.hpp
index dc26d0447..c299fb177 100644
--- a/trunk/src/kernel/srs_kernel_error.hpp
+++ b/trunk/src/kernel/srs_kernel_error.hpp
@@ -155,6 +155,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define ERROR_ENCODER_DUP2                  716
 #define ERROR_ENCODER_PARSE                 717
 #define ERROR_ENCODER_NO_INPUT              718
+#define ERROR_ENCODER_NO_OUTPUT             719
+#define ERROR_ENCODER_INPUT_TYPE            720
 
 #define ERROR_HTTP_PARSE_URI                800
 #define ERROR_HTTP_DATA_INVLIAD             801