diff --git a/CMakeLists.txt.user b/CMakeLists.txt.user
index d6ee190..591f04a 100644
--- a/CMakeLists.txt.user
+++ b/CMakeLists.txt.user
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 10.0.0, 2023-04-01T19:15:04. -->
+<!-- Written by QtCreator 10.0.0, 2023-04-06T17:14:40. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>
-  <value type="QByteArray">{e8c938e2-c8fa-4354-a6d6-5cb042d4a566}</value>
+  <value type="QByteArray">{b1d6c31c-e354-4f9b-a89f-0f02a67ed6d1}</value>
  </data>
  <data>
   <variable>ProjectExplorer.Project.ActiveTarget</variable>
@@ -87,26 +87,25 @@
   <variable>ProjectExplorer.Project.Target.0</variable>
   <valuemap type="QVariantMap">
    <value type="QString" key="DeviceType">Desktop</value>
-   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">桌面</value>
-   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">桌面</value>
-   <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">{976a26f7-9753-41c3-a002-83e83b921ad8}</value>
+   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Desktop (x86-darwin-generic-mach_o-32bit)</value>
+   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Desktop (x86-darwin-generic-mach_o-32bit)</value>
+   <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">{ea69aa4c-9f65-4091-af6f-c8dca7313cfe}</value>
    <value type="qlonglong" key="ProjectExplorer.Target.ActiveBuildConfiguration">0</value>
    <value type="qlonglong" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
-   <value type="qlonglong" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
+   <value type="qlonglong" key="ProjectExplorer.Target.ActiveRunConfiguration">-1</value>
    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
     <value type="QString" key="CMake.Build.Type">Debug</value>
     <value type="int" key="CMake.Configure.BaseEnvironment">2</value>
     <value type="bool" key="CMake.Configure.ClearSystemEnvironment">false</value>
     <valuelist type="QVariantList" key="CMake.Configure.UserEnvironmentChanges"/>
-    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_GENERATOR:STRING=Unix Makefiles
--DCMAKE_BUILD_TYPE:STRING=Debug
+    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_BUILD_TYPE:STRING=Debug
 -DCMAKE_PROJECT_INCLUDE_BEFORE:FILEPATH=%{buildDir}/.qtc/package-manager/auto-setup.cmake
--DQT_QMAKE_EXECUTABLE:STRING=%{Qt:qmakeExecutable}
--DCMAKE_PREFIX_PATH:STRING=%{Qt:QT_INSTALL_PREFIX}
--DCMAKE_C_COMPILER:STRING=%{Compiler:Executable:C}
--DCMAKE_CXX_COMPILER:STRING=%{Compiler:Executable:Cxx}
--DCMAKE_CXX_FLAGS_INIT:STRING=%{Qt:QML_DEBUG_FLAG}</value>
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/kingecg/code/build-hkstreamer-unknown-Debug</value>
+-DQT_QMAKE_EXECUTABLE:FILEPATH=%{Qt:qmakeExecutable}
+-DCMAKE_PREFIX_PATH:PATH=%{Qt:QT_INSTALL_PREFIX}
+-DCMAKE_C_COMPILER:FILEPATH=%{Compiler:Executable:C}
+-DCMAKE_CXX_COMPILER:FILEPATH=%{Compiler:Executable:Cxx}
+%{CMAKE_OSX_ARCHITECTURES:DefaultFlag}</value>
+    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/Users/chengguang/code/build-hkstreamer-Desktop_x86_darwin_generic_mach_o_32bit-Debug</value>
     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
       <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
@@ -154,15 +153,14 @@
     <value type="int" key="CMake.Configure.BaseEnvironment">2</value>
     <value type="bool" key="CMake.Configure.ClearSystemEnvironment">false</value>
     <valuelist type="QVariantList" key="CMake.Configure.UserEnvironmentChanges"/>
-    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_GENERATOR:STRING=Unix Makefiles
--DCMAKE_BUILD_TYPE:STRING=Release
+    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_BUILD_TYPE:STRING=Release
 -DCMAKE_PROJECT_INCLUDE_BEFORE:FILEPATH=%{buildDir}/.qtc/package-manager/auto-setup.cmake
--DQT_QMAKE_EXECUTABLE:STRING=%{Qt:qmakeExecutable}
--DCMAKE_PREFIX_PATH:STRING=%{Qt:QT_INSTALL_PREFIX}
--DCMAKE_C_COMPILER:STRING=%{Compiler:Executable:C}
--DCMAKE_CXX_COMPILER:STRING=%{Compiler:Executable:Cxx}
--DCMAKE_CXX_FLAGS_INIT:STRING=%{Qt:QML_DEBUG_FLAG}</value>
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/kingecg/code/build-hkstreamer-unknown-Release</value>
+-DQT_QMAKE_EXECUTABLE:FILEPATH=%{Qt:qmakeExecutable}
+-DCMAKE_PREFIX_PATH:PATH=%{Qt:QT_INSTALL_PREFIX}
+-DCMAKE_C_COMPILER:FILEPATH=%{Compiler:Executable:C}
+-DCMAKE_CXX_COMPILER:FILEPATH=%{Compiler:Executable:Cxx}
+%{CMAKE_OSX_ARCHITECTURES:DefaultFlag}</value>
+    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/Users/chengguang/code/build-hkstreamer-Desktop_x86_darwin_generic_mach_o_32bit-Release</value>
     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
       <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
@@ -172,7 +170,6 @@
       <value type="bool" key="CMakeProjectManager.MakeStep.ClearSystemEnvironment">false</value>
       <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.UserEnvironmentChanges"/>
       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">构建</value>
       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.MakeStep</value>
      </valuemap>
      <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
@@ -189,7 +186,6 @@
       <value type="bool" key="CMakeProjectManager.MakeStep.ClearSystemEnvironment">false</value>
       <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.UserEnvironmentChanges"/>
       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">构建</value>
       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.MakeStep</value>
      </valuemap>
      <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
@@ -210,15 +206,14 @@
     <value type="int" key="CMake.Configure.BaseEnvironment">2</value>
     <value type="bool" key="CMake.Configure.ClearSystemEnvironment">false</value>
     <valuelist type="QVariantList" key="CMake.Configure.UserEnvironmentChanges"/>
-    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_GENERATOR:STRING=Unix Makefiles
--DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo
+    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo
 -DCMAKE_PROJECT_INCLUDE_BEFORE:FILEPATH=%{buildDir}/.qtc/package-manager/auto-setup.cmake
--DQT_QMAKE_EXECUTABLE:STRING=%{Qt:qmakeExecutable}
--DCMAKE_PREFIX_PATH:STRING=%{Qt:QT_INSTALL_PREFIX}
--DCMAKE_C_COMPILER:STRING=%{Compiler:Executable:C}
--DCMAKE_CXX_COMPILER:STRING=%{Compiler:Executable:Cxx}
--DCMAKE_CXX_FLAGS_INIT:STRING=%{Qt:QML_DEBUG_FLAG}</value>
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/kingecg/code/build-hkstreamer-unknown-RelWithDebInfo</value>
+-DQT_QMAKE_EXECUTABLE:FILEPATH=%{Qt:qmakeExecutable}
+-DCMAKE_PREFIX_PATH:PATH=%{Qt:QT_INSTALL_PREFIX}
+-DCMAKE_C_COMPILER:FILEPATH=%{Compiler:Executable:C}
+-DCMAKE_CXX_COMPILER:FILEPATH=%{Compiler:Executable:Cxx}
+%{CMAKE_OSX_ARCHITECTURES:DefaultFlag}</value>
+    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/Users/chengguang/code/build-hkstreamer-Desktop_x86_darwin_generic_mach_o_32bit-RelWithDebInfo</value>
     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
       <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
@@ -264,16 +259,15 @@
     <value type="int" key="CMake.Configure.BaseEnvironment">2</value>
     <value type="bool" key="CMake.Configure.ClearSystemEnvironment">false</value>
     <valuelist type="QVariantList" key="CMake.Configure.UserEnvironmentChanges"/>
-    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_GENERATOR:STRING=Unix Makefiles
--DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo
+    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo
 -DCMAKE_PROJECT_INCLUDE_BEFORE:FILEPATH=%{buildDir}/.qtc/package-manager/auto-setup.cmake
--DQT_QMAKE_EXECUTABLE:STRING=%{Qt:qmakeExecutable}
--DCMAKE_PREFIX_PATH:STRING=%{Qt:QT_INSTALL_PREFIX}
--DCMAKE_C_COMPILER:STRING=%{Compiler:Executable:C}
--DCMAKE_CXX_COMPILER:STRING=%{Compiler:Executable:Cxx}
--DCMAKE_CXX_FLAGS_INIT:STRING=%{Qt:QML_DEBUG_FLAG}</value>
+-DQT_QMAKE_EXECUTABLE:FILEPATH=%{Qt:qmakeExecutable}
+-DCMAKE_PREFIX_PATH:PATH=%{Qt:QT_INSTALL_PREFIX}
+-DCMAKE_C_COMPILER:FILEPATH=%{Compiler:Executable:C}
+-DCMAKE_CXX_COMPILER:FILEPATH=%{Compiler:Executable:Cxx}
+%{CMAKE_OSX_ARCHITECTURES:DefaultFlag}</value>
     <value type="int" key="EnableQmlDebugging">0</value>
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/kingecg/code/build-hkstreamer-unknown-Profile</value>
+    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/Users/chengguang/code/build-hkstreamer-Desktop_x86_darwin_generic_mach_o_32bit-Profile</value>
     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
       <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
@@ -319,15 +313,14 @@
     <value type="int" key="CMake.Configure.BaseEnvironment">2</value>
     <value type="bool" key="CMake.Configure.ClearSystemEnvironment">false</value>
     <valuelist type="QVariantList" key="CMake.Configure.UserEnvironmentChanges"/>
-    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_GENERATOR:STRING=Unix Makefiles
--DCMAKE_BUILD_TYPE:STRING=MinSizeRel
+    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_BUILD_TYPE:STRING=MinSizeRel
 -DCMAKE_PROJECT_INCLUDE_BEFORE:FILEPATH=%{buildDir}/.qtc/package-manager/auto-setup.cmake
--DQT_QMAKE_EXECUTABLE:STRING=%{Qt:qmakeExecutable}
--DCMAKE_PREFIX_PATH:STRING=%{Qt:QT_INSTALL_PREFIX}
--DCMAKE_C_COMPILER:STRING=%{Compiler:Executable:C}
--DCMAKE_CXX_COMPILER:STRING=%{Compiler:Executable:Cxx}
--DCMAKE_CXX_FLAGS_INIT:STRING=%{Qt:QML_DEBUG_FLAG}</value>
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/kingecg/code/build-hkstreamer-unknown-MinSizeRel</value>
+-DQT_QMAKE_EXECUTABLE:FILEPATH=%{Qt:qmakeExecutable}
+-DCMAKE_PREFIX_PATH:PATH=%{Qt:QT_INSTALL_PREFIX}
+-DCMAKE_C_COMPILER:FILEPATH=%{Compiler:Executable:C}
+-DCMAKE_CXX_COMPILER:FILEPATH=%{Compiler:Executable:Cxx}
+%{CMAKE_OSX_ARCHITECTURES:DefaultFlag}</value>
+    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/Users/chengguang/code/build-hkstreamer-Desktop_x86_darwin_generic_mach_o_32bit-MinSizeRel</value>
     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
       <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
@@ -382,30 +375,307 @@
     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.DefaultDeployConfiguration</value>
    </valuemap>
    <value type="qlonglong" key="ProjectExplorer.Target.DeployConfigurationCount">1</value>
-   <valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.0">
-    <value type="bool" key="Analyzer.Perf.Settings.UseGlobalSettings">true</value>
-    <value type="bool" key="Analyzer.QmlProfiler.Settings.UseGlobalSettings">true</value>
-    <value type="bool" key="Analyzer.Valgrind.Settings.UseGlobalSettings">true</value>
-    <valuelist type="QVariantList" key="CustomOutputParsers"/>
-    <value type="int" key="PE.EnvironmentAspect.Base">2</value>
-    <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">hkstreamer</value>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.CMakeRunConfiguration.hkstreamer</value>
-    <value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey">hkstreamer</value>
-    <value type="QString" key="RunConfiguration.Arguments">--cmd test -U user -P passwd --channel 1</value>
-    <value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
-    <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
-    <value type="bool" key="RunConfiguration.UseLibrarySearchPath">true</value>
-    <value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
-    <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
-    <value type="QString" key="RunConfiguration.WorkingDirectory.default">/home/kingecg/code/build-hkstreamer-unknown-Debug</value>
+   <value type="qlonglong" key="ProjectExplorer.Target.RunConfigurationCount">0</value>
+  </valuemap>
+ </data>
+ <data>
+  <variable>ProjectExplorer.Project.Target.1</variable>
+  <valuemap type="QVariantMap">
+   <value type="QString" key="DeviceType">Desktop</value>
+   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Desktop (x86-darwin-generic-mach_o-64bit)</value>
+   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Desktop (x86-darwin-generic-mach_o-64bit)</value>
+   <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">{c56fdce9-f42d-46e6-a039-74b4e52116a9}</value>
+   <value type="qlonglong" key="ProjectExplorer.Target.ActiveBuildConfiguration">0</value>
+   <value type="qlonglong" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
+   <value type="qlonglong" key="ProjectExplorer.Target.ActiveRunConfiguration">-1</value>
+   <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
+    <value type="QString" key="CMake.Build.Type">Debug</value>
+    <value type="int" key="CMake.Configure.BaseEnvironment">2</value>
+    <value type="bool" key="CMake.Configure.ClearSystemEnvironment">false</value>
+    <valuelist type="QVariantList" key="CMake.Configure.UserEnvironmentChanges"/>
+    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_BUILD_TYPE:STRING=Debug
+-DCMAKE_PROJECT_INCLUDE_BEFORE:FILEPATH=%{buildDir}/.qtc/package-manager/auto-setup.cmake
+-DQT_QMAKE_EXECUTABLE:FILEPATH=%{Qt:qmakeExecutable}
+-DCMAKE_PREFIX_PATH:PATH=%{Qt:QT_INSTALL_PREFIX}
+-DCMAKE_C_COMPILER:FILEPATH=%{Compiler:Executable:C}
+-DCMAKE_CXX_COMPILER:FILEPATH=%{Compiler:Executable:Cxx}
+%{CMAKE_OSX_ARCHITECTURES:DefaultFlag}</value>
+    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/Users/chengguang/code/build-hkstreamer-Desktop_x86_darwin_generic_mach_o_64bit-Debug</value>
+    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
+     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
+      <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.BuildTargets">
+       <value type="QString">all</value>
+      </valuelist>
+      <value type="bool" key="CMakeProjectManager.MakeStep.ClearSystemEnvironment">false</value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.UserEnvironmentChanges"/>
+      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">构建</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.MakeStep</value>
+     </valuemap>
+     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">构建</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">构建</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
+    </valuemap>
+    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
+     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
+      <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.BuildTargets">
+       <value type="QString">clean</value>
+      </valuelist>
+      <value type="bool" key="CMakeProjectManager.MakeStep.ClearSystemEnvironment">false</value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.UserEnvironmentChanges"/>
+      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">构建</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.MakeStep</value>
+     </valuemap>
+     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">清除</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">清除</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
+    </valuemap>
+    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
+    <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
+    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.CustomParsers"/>
+    <value type="bool" key="ProjectExplorer.BuildConfiguration.ParseStandardOutput">false</value>
+    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Debug</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.CMakeBuildConfiguration</value>
    </valuemap>
-   <value type="qlonglong" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
+   <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.1">
+    <value type="QString" key="CMake.Build.Type">Release</value>
+    <value type="int" key="CMake.Configure.BaseEnvironment">2</value>
+    <value type="bool" key="CMake.Configure.ClearSystemEnvironment">false</value>
+    <valuelist type="QVariantList" key="CMake.Configure.UserEnvironmentChanges"/>
+    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_BUILD_TYPE:STRING=Release
+-DCMAKE_PROJECT_INCLUDE_BEFORE:FILEPATH=%{buildDir}/.qtc/package-manager/auto-setup.cmake
+-DQT_QMAKE_EXECUTABLE:FILEPATH=%{Qt:qmakeExecutable}
+-DCMAKE_PREFIX_PATH:PATH=%{Qt:QT_INSTALL_PREFIX}
+-DCMAKE_C_COMPILER:FILEPATH=%{Compiler:Executable:C}
+-DCMAKE_CXX_COMPILER:FILEPATH=%{Compiler:Executable:Cxx}
+%{CMAKE_OSX_ARCHITECTURES:DefaultFlag}</value>
+    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/Users/chengguang/code/build-hkstreamer-Desktop_x86_darwin_generic_mach_o_64bit-Release</value>
+    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
+     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
+      <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.BuildTargets">
+       <value type="QString">all</value>
+      </valuelist>
+      <value type="bool" key="CMakeProjectManager.MakeStep.ClearSystemEnvironment">false</value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.UserEnvironmentChanges"/>
+      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.MakeStep</value>
+     </valuemap>
+     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">构建</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">构建</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
+    </valuemap>
+    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
+     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
+      <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.BuildTargets">
+       <value type="QString">clean</value>
+      </valuelist>
+      <value type="bool" key="CMakeProjectManager.MakeStep.ClearSystemEnvironment">false</value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.UserEnvironmentChanges"/>
+      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.MakeStep</value>
+     </valuemap>
+     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">清除</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">清除</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
+    </valuemap>
+    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
+    <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
+    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.CustomParsers"/>
+    <value type="bool" key="ProjectExplorer.BuildConfiguration.ParseStandardOutput">false</value>
+    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Release</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.CMakeBuildConfiguration</value>
+   </valuemap>
+   <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.2">
+    <value type="QString" key="CMake.Build.Type">RelWithDebInfo</value>
+    <value type="int" key="CMake.Configure.BaseEnvironment">2</value>
+    <value type="bool" key="CMake.Configure.ClearSystemEnvironment">false</value>
+    <valuelist type="QVariantList" key="CMake.Configure.UserEnvironmentChanges"/>
+    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo
+-DCMAKE_PROJECT_INCLUDE_BEFORE:FILEPATH=%{buildDir}/.qtc/package-manager/auto-setup.cmake
+-DQT_QMAKE_EXECUTABLE:FILEPATH=%{Qt:qmakeExecutable}
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+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.MakeStep</value>
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+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">清除</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
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+    <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
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+    <value type="bool" key="ProjectExplorer.BuildConfiguration.ParseStandardOutput">false</value>
+    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Profile</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.CMakeBuildConfiguration</value>
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+    <value type="bool" key="CMake.Configure.ClearSystemEnvironment">false</value>
+    <valuelist type="QVariantList" key="CMake.Configure.UserEnvironmentChanges"/>
+    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_BUILD_TYPE:STRING=MinSizeRel
+-DCMAKE_PROJECT_INCLUDE_BEFORE:FILEPATH=%{buildDir}/.qtc/package-manager/auto-setup.cmake
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+-DCMAKE_C_COMPILER:FILEPATH=%{Compiler:Executable:C}
+-DCMAKE_CXX_COMPILER:FILEPATH=%{Compiler:Executable:Cxx}
+%{CMAKE_OSX_ARCHITECTURES:DefaultFlag}</value>
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+      <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.BuildTargets">
+       <value type="QString">clean</value>
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+      <value type="bool" key="CMakeProjectManager.MakeStep.ClearSystemEnvironment">false</value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.UserEnvironmentChanges"/>
+      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.MakeStep</value>
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+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">清除</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">清除</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
+    </valuemap>
+    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
+    <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
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+    <value type="bool" key="ProjectExplorer.BuildConfiguration.ParseStandardOutput">false</value>
+    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Minimum Size Release</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.CMakeBuildConfiguration</value>
+   </valuemap>
+   <value type="qlonglong" key="ProjectExplorer.Target.BuildConfigurationCount">5</value>
+   <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
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+     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">0</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">部署</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">部署</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
+    </valuemap>
+    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
+    <valuemap type="QVariantMap" key="ProjectExplorer.DeployConfiguration.CustomData"/>
+    <value type="bool" key="ProjectExplorer.DeployConfiguration.CustomDataEnabled">false</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.DefaultDeployConfiguration</value>
+   </valuemap>
+   <value type="qlonglong" key="ProjectExplorer.Target.DeployConfigurationCount">1</value>
+   <value type="qlonglong" key="ProjectExplorer.Target.RunConfigurationCount">0</value>
   </valuemap>
  </data>
  <data>
   <variable>ProjectExplorer.Project.TargetCount</variable>
-  <value type="qlonglong">1</value>
+  <value type="qlonglong">2</value>
  </data>
  <data>
   <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
diff --git a/hkstreamer.creator.user b/hkstreamer.creator.user
index 106ac4b..03b315f 100644
--- a/hkstreamer.creator.user
+++ b/hkstreamer.creator.user
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 10.0.0, 2023-04-01T12:13:17. -->
+<!-- Written by QtCreator 10.0.0, 2023-04-06T17:13:50. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>
-  <value type="QByteArray">{e8c938e2-c8fa-4354-a6d6-5cb042d4a566}</value>
+  <value type="QByteArray">{b1d6c31c-e354-4f9b-a89f-0f02a67ed6d1}</value>
  </data>
  <data>
   <variable>ProjectExplorer.Project.ActiveTarget</variable>
@@ -87,14 +87,14 @@
   <variable>ProjectExplorer.Project.Target.0</variable>
   <valuemap type="QVariantMap">
    <value type="QString" key="DeviceType">Desktop</value>
-   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">桌面</value>
-   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">桌面</value>
-   <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">{976a26f7-9753-41c3-a002-83e83b921ad8}</value>
+   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Desktop (x86-darwin-generic-mach_o-32bit)</value>
+   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Desktop (x86-darwin-generic-mach_o-32bit)</value>
+   <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">{ea69aa4c-9f65-4091-af6f-c8dca7313cfe}</value>
    <value type="qlonglong" key="ProjectExplorer.Target.ActiveBuildConfiguration">0</value>
    <value type="qlonglong" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
    <value type="qlonglong" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/kingecg/code/hkstreamer</value>
+    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/Users/chengguang/code/hkstreamer</value>
     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
       <valuelist type="QVariantList" key="GenericProjectManager.GenericMakeStep.BuildTargets">
diff --git a/hkstreamer.files b/hkstreamer.files
index 5be5eea..ceae3fb 100644
--- a/hkstreamer.files
+++ b/hkstreamer.files
@@ -32,6 +32,8 @@ lib/libhpr.so
 lib/libopenal.so.1
 lib/libssl.so.1.1
 lib/libz.so
+nlohmann/json.hpp
+nlohmann/json_fwd.hpp
 src/HkStreamer.cpp
 src/cmdlineparser.cpp
 src/convert.cpp
diff --git a/hkstreamer.includes b/hkstreamer.includes
index d5c3200..710fd07 100644
--- a/hkstreamer.includes
+++ b/hkstreamer.includes
@@ -1,2 +1,3 @@
 include
 src
+nlohmann
diff --git a/include/HkStreamer.h b/include/HkStreamer.h
index 5fe300b..658c6cb 100644
--- a/include/HkStreamer.h
+++ b/include/HkStreamer.h
@@ -34,6 +34,7 @@ extern "C"
 #define HPR_OK 0
 #define HPR_ERROR -1
   int playback(LPLoginInfo loginInfo, LPStream stream);
+  int play(LPLoginInfo loginInfo, LPStream stream);
   int getCfg(LPLoginInfo loginInfo);
 #ifdef __cplusplus
 }
diff --git a/src/HkStreamer.cpp b/src/HkStreamer.cpp
index d073ae1..6031c3a 100644
--- a/src/HkStreamer.cpp
+++ b/src/HkStreamer.cpp
@@ -3,12 +3,38 @@
 #include <bitset>
 #include <unistd.h>
 #include <time.h>
+#include <csignal>
+#include <cstdlib>
 #include "../include/HCNetSDK.h"
 #include "../include/HkStreamer.h"
 #include "../include/convert.h"
+
 using namespace std;
+long playHandle = -1;
+bool is_playback = false;
+long lUserID;
 const int outcache_size=1024;
-void CALLBACK fPlayDataCallBack(LONG lPlayHandle, DWORD dwDataType, BYTE *pBuffer, DWORD dwBufSize, void* dwUser){
+
+void signalexit(int signal){
+    if(playHandle!= -1){
+        if(is_playback){
+            NET_DVR_StopGetFile(playHandle);
+        } else {
+            NET_DVR_StopRealPlay(playHandle);
+        }
+        NET_DVR_Logout(lUserID);
+        NET_DVR_Cleanup();
+    }
+    exit(signal);
+}
+
+void exitHandler(){
+    signalexit(0);
+}
+
+
+template<typename T>
+void CALLBACK fPlayDataCallBack(LONG lPlayHandle, DWORD dwDataType, BYTE *pBuffer, DWORD dwBufSize, T dwUser){
     DWORD remained = dwBufSize;
     char cache[outcache_size]={0};
     BYTE *cp; // cp head point
@@ -59,7 +85,7 @@ int login(LPLoginInfo loginInfo)
 
 int getCfg(LPLoginInfo loginInfo)
 {
-  long lUserID = login(loginInfo);
+  lUserID = login(loginInfo);
   if (lUserID < 0)
   {
     std::cerr << "pyd1---Login error" << NET_DVR_GetLastError() << std::endl;
@@ -102,31 +128,33 @@ int _playback(long lUserID, int timezone,LPStream stream) {
   convert_isotimestr_time(stream->start,timezone, &(struVodPara.struBeginTime));
   convert_isotimestr_time(stream->start,timezone, &(struVodPara.struEndTime));
   struVodPara.struIDInfo.dwChannel = stream->lChannel;
-  int hPlayback = NET_DVR_PlayBackByTime_V40(lUserID, &struVodPara);
-  if(checkResult(hPlayback<0,"play back error")){
+   playHandle = NET_DVR_PlayBackByTime_V40(lUserID, &struVodPara);
+  if(checkResult(playHandle<0,"play back error")){
     return HPR_ERROR;
   }
+  is_playback = true;
   char usrInfo[200];
-  if(checkResult(!NET_DVR_SetPlayDataCallBack_V40(hPlayback, fPlayDataCallBack, usrInfo), "setup callback error")){
+  if(checkResult(!NET_DVR_SetPlayDataCallBack_V40(playHandle, fPlayDataCallBack<void *>, usrInfo), "setup callback error")){
     return HPR_ERROR;
   }
 
-  if(checkResult(!NET_DVR_PlayBackControl_V40(hPlayback, NET_DVR_PLAYSTART,NULL, 0, NULL, NULL),"start playback error")){
+  if(checkResult(!NET_DVR_PlayBackControl_V40(playHandle, NET_DVR_PLAYSTART,NULL, 0, NULL, NULL),"start playback error")){
     return HPR_ERROR;
   }
-  if(checkResult(!NET_DVR_PlayBackControl_V40(hPlayback, NET_DVR_SETSPEED,&(stream->bitrate), 0, NULL, NULL),"set plackback speed error")){
+  if(checkResult(!NET_DVR_PlayBackControl_V40(playHandle, NET_DVR_SETSPEED,&(stream->bitrate), 0, NULL, NULL),"set plackback speed error")){
     return HPR_ERROR;
   }
   int pos = 0;
-  for (pos = 0; pos < 100 && pos >= 0; pos = NET_DVR_GetDownloadPos(hPlayback))
+  for (pos = 0; pos < 100 && pos >= 0; pos = NET_DVR_GetDownloadPos(playHandle))
   {
     // output progress in cerr
     std::cerr<<"Pos:"<<pos<<std::endl;
     sleep(10);
   }
-  if(checkResult(!NET_DVR_StopGetFile(hPlayback),"failed to stop playback")){
+  if(checkResult(!NET_DVR_StopGetFile(playHandle),"failed to stop playback")){
     return HPR_ERROR;
   }
+  playHandle = -1;
   return HPR_OK;
 }
 
@@ -149,18 +177,62 @@ int _readChannelConfig(long lUserID,LPStream stream){
   return 0;
 }
 
+void _installExitHandler(){
+  atexit(exitHandler);
+  signal(SIGINT,signalexit);
+}
+
+
 int playback(LPLoginInfo loginInfo, LPStream stream)
 {
-  long lUserID = login(loginInfo);
+  lUserID = login(loginInfo);
   if(checkResult(lUserID<1, "device login error")){
     return HPR_ERROR;
   }
   // TODO: find timezone cfg
   int timezone = 8;
-  // TODO: find actually channel
-  stream->lChannel = stream->lChannel + 33/*channel start*/ - 1;
+  int fChannelInfo = _readChannelConfig(lUserID, stream);
+  if(fChannelInfo == HPR_ERROR){
+    return fChannelInfo;
+  }
+//  stream->lChannel = stream->lChannel + 33/*channel start*/ - 1;
   int playbackResult = _playback(lUserID, timezone, stream);
   NET_DVR_Logout(lUserID);
   NET_DVR_Cleanup();
   return playbackResult;
 }
+
+int _getStream(long lUserID,LPStream stream){
+  long lRealPlayHandle;
+  NET_DVR_PREVIEWINFO struPlayInfo = {0};
+   struPlayInfo.hPlayWnd     = 0;
+  struPlayInfo.lChannel     = stream->lChannel;  //channel NO
+  struPlayInfo.dwLinkMode   = 1; // 采用子码流
+  struPlayInfo.bBlocked = 1;
+  struPlayInfo.dwDisplayBufNum = 1;
+  playHandle = NET_DVR_RealPlay_V40(lUserID, &struPlayInfo, NULL, NULL);
+  if(checkResult(lRealPlayHandle<0,"start play error")){
+    return HPR_ERROR;
+  }
+  int scRet;
+  scRet = NET_DVR_SetStandardDataCallBack(playHandle,fPlayDataCallBack<DWORD>,0);
+  if(checkResult(scRet<0,"set play callback error")){
+    return HPR_ERROR;
+  }
+  return 0;
+}
+
+
+int play(LPLoginInfo loginInfo, LPStream stream)
+{
+  lUserID = login(loginInfo);
+  if(checkResult(lUserID<1, "device login error")){
+    return HPR_ERROR;
+  }
+  int fChannelInfo = _readChannelConfig(lUserID, stream);
+  if(fChannelInfo == HPR_ERROR){
+    return fChannelInfo;
+  }
+
+  return _getStream(lUserID, stream);
+}