diff --git a/client/qt_gl_/yuvgl/mainwindow.cpp b/client/qt_gl_/yuvgl/mainwindow.cpp
index b58db34..87210dd 100644
--- a/client/qt_gl_/yuvgl/mainwindow.cpp
+++ b/client/qt_gl_/yuvgl/mainwindow.cpp
@@ -18,10 +18,10 @@ MainWindow::MainWindow(QWidget *parent) :
         ui->comboBox->addItem(QString::fromWCharArray(x.c_str(),x.size()),
                               QString::fromWCharArray(x.c_str(),x.size()));
     }
-    mAudioCapture = new CaptureAudio(44100, 2);
+    mAudioCapture = new CaptureAudioFfmpeg(44100, 2);
     mMic = mAudioCapture->EnumSpeakers();
     qDebug()<<"capture "<<mMic.size()<<"mic";
-    for(vector<CaptureAudio::MICInfo>::iterator itr = mMic.begin();itr != mMic.end();itr++){
+    for(vector<CaptureAudioFfmpeg::MICInfo>::iterator itr = mMic.begin();itr != mMic.end();itr++){
         ui->comboBox_2->addItem(QString::fromLocal8Bit(itr->name.c_str(),itr->name.size()),
                                 QString::fromLocal8Bit(itr->name.c_str(),itr->name.size()));
     }
diff --git a/client/qt_gl_/yuvgl/mainwindow.h b/client/qt_gl_/yuvgl/mainwindow.h
index 7bb5602..170db42 100644
--- a/client/qt_gl_/yuvgl/mainwindow.h
+++ b/client/qt_gl_/yuvgl/mainwindow.h
@@ -42,8 +42,8 @@ private:
     VideoCoder *mVideoCoder;
     bool m_bRtmpPushing;
     H264RtmpPuser *mPusher;
-    CaptureAudio *mAudioCapture;
-    vector<CaptureAudio::MICInfo> mMic;
+    CaptureAudioFfmpeg *mAudioCapture;
+    vector<CaptureAudioFfmpeg::MICInfo> mMic;
 };
 
 #endif // MAINWINDOW_H
diff --git a/client/qt_gl_/yuvgl/media/AudioCapture.cpp b/client/qt_gl_/yuvgl/media/AudioCapture.cpp
index de7b93b..86f7189 100644
--- a/client/qt_gl_/yuvgl/media/AudioCapture.cpp
+++ b/client/qt_gl_/yuvgl/media/AudioCapture.cpp
@@ -124,17 +124,85 @@ void CaptureAudio::StopCapture()
 		this->mStatus = STOP;
 	}
 }
+std::string WString2String(const std::wstring& ws)
+{
+    std::string strLocale = setlocale(LC_ALL, "");
+    const wchar_t* wchSrc = ws.c_str();
+    size_t nDestSize = wcstombs(NULL, wchSrc, 0) + 1;
+    char *chDest = new char[nDestSize];
+    memset(chDest, 0, nDestSize);
+    wcstombs(chDest, wchSrc, nDestSize);
+    std::string strResult = chDest;
+    delete[]chDest;
+    setlocale(LC_ALL, strLocale.c_str());
+    return strResult;
+}
+vector<CaptureAudioFfmpeg::MICInfo> CaptureAudioFfmpeg::EnumSpeakers()
+{
+    vector<CaptureAudioFfmpeg::MICInfo> ret;
+    std::vector<std::wstring> names;
+    IEnumMoniker *pEnum = nullptr;
+    // Create the System Device Enumerator.
+    ICreateDevEnum *pDevEnum;
+    HRESULT hr = CoCreateInstance(CLSID_SystemDeviceEnum, nullptr,
+        CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&pDevEnum));
 
-vector<CaptureAudio::MICInfo> CaptureAudioFfmpeg::EnumSpeakers()
+    if (SUCCEEDED(hr))
+    {
+        // Create an enumerator for the category.
+        hr = pDevEnum->CreateClassEnumerator(CLSID_AudioInputDeviceCategory, &pEnum, 0);
+        if (hr == S_FALSE)
+        {
+            hr = VFW_E_NOT_FOUND;  // The category is empty. Treat as an error.
+        }
+        pDevEnum->Release();
+    }
+
+    if (!SUCCEEDED(hr))
+        return ret;
+
+    IMoniker *pMoniker = nullptr;
+    while (pEnum->Next(1, &pMoniker, nullptr) == S_OK)
+    {
+        IPropertyBag *pPropBag;
+        IBindCtx* bindCtx = nullptr;
+        LPOLESTR str = nullptr;
+        VARIANT var;
+        VariantInit(&var);
+
+        HRESULT hr = pMoniker->BindToStorage(0, 0, IID_PPV_ARGS(&pPropBag));
+        if (FAILED(hr))
+        {
+            pMoniker->Release();
+            continue;
+        }
+
+        // Get description or friendly name.
+        hr = pPropBag->Read(L"Description", &var, 0);
+        if (FAILED(hr))
+        {
+            hr = pPropBag->Read(L"FriendlyName", &var, 0);
+        }
+        if (SUCCEEDED(hr))
+        {
+            names.push_back(var.bstrVal);
+            std::string x = WString2String(var.bstrVal);
+            CaptureAudioFfmpeg::MICInfo ele;
+            ele.name = x;
+            ret.push_back(ele);
+            VariantClear(&var);
+        }
+
+        pPropBag->Release();
+        pMoniker->Release();
+    }
+
+    pEnum->Release();
+
+    return ret;
+}
+
+CaptureAudioFfmpeg::CaptureAudioFfmpeg(uint16_t rate, uint8_t channel)
 {
 
-    av_register_all();
-    avdevice_register_all();
-    AVFormatContext *pFmtCtx = avformat_alloc_context();
-    AVDictionary* options = NULL;
-    av_dict_set(&options, "list_devices", "true", 0);
-    AVInputFormat *iformat = av_find_input_format("dshow");
-    //printf("Device Info=============\n");
-    avformat_open_input(&pFmtCtx, "video=dummy", iformat, &options);
-
 }
diff --git a/client/qt_gl_/yuvgl/media/AudioCapture.h b/client/qt_gl_/yuvgl/media/AudioCapture.h
index 8daa656..c025208 100644
--- a/client/qt_gl_/yuvgl/media/AudioCapture.h
+++ b/client/qt_gl_/yuvgl/media/AudioCapture.h
@@ -16,7 +16,13 @@ extern "C"
 #include "libavdevice/avdevice.h"
 
 };
-
+#include <functional>
+#include <dshow.h>
+#include <windows.h>
+#include "qedit.h"
+#include <mutex>
+#include <vector>
+#include "guiddef.h"
 using namespace std;
 
 typedef int (CbAudio)(const void* input, void* output, unsigned long frameCount,
@@ -28,7 +34,7 @@ public:
 	public:
 		virtual void OnAudioData(const void *frameaddress, uint32_t framelen) {};
 	};
-	typedef struct _T_MicInfo
+        typedef struct MICInfo
 	{
 		string name;
 		int index;
@@ -78,9 +84,10 @@ public:
                 FAIL = 4,
         };
 
-        vector<CaptureAudio::MICInfo> EnumSpeakers();
+        vector<CaptureAudioFfmpeg::MICInfo> EnumSpeakers();
+        CaptureAudioFfmpeg(uint16_t rate, uint8_t channel);
+
         /*
-        CaptureAudio(uint16_t rate, uint8_t channel);
         ~CaptureAudio();
         int StartCapture();
         int InitCapture(int index,uint16_t rate,uint8_t channel);