diff --git a/client/webrtc_capture/src/camera_video_sink.cpp b/client/webrtc_capture/src/camera_video_sink.cpp
index 40ea1a6..cd55558 100644
--- a/client/webrtc_capture/src/camera_video_sink.cpp
+++ b/client/webrtc_capture/src/camera_video_sink.cpp
@@ -91,9 +91,11 @@ void CameraVideoSink::OnFrame(const webrtc::VideoFrame& frame) {
             new uint8_t[width * height*4];
     qDebug()<<width*height<<int(frameBuffer->GetI420()->type());
     memcpy(data,frameBuffer->GetI420()->DataY(),width*height);
-    memcpy(data + width*height ,frameBuffer->GetI420()->DataU(),width*height/4);
+    memcpy(data + width*height ,frameBuffer->GetI420()->DataU(),
+           width*height/4);
     memcpy(data + width*height + width*height/4,
-           frameBuffer->GetI420()->DataY(),width*height/4);
+           frameBuffer->GetI420()->DataV(),
+           width*height/4);
 
     m_buf.PushFirst(data);
     auto timestamp_curr = std::chrono::duration_cast<std::chrono::milliseconds>(
diff --git a/client/webrtc_capture/src/cplaywidget.cpp b/client/webrtc_capture/src/cplaywidget.cpp
index 6cf0960..4a344e1 100644
--- a/client/webrtc_capture/src/cplaywidget.cpp
+++ b/client/webrtc_capture/src/cplaywidget.cpp
@@ -199,17 +199,11 @@ void CPlayWidget::initializeGL()
     }
 #define PROGRAM_VERTEX_ATTRIBUTE 0
 #define PROGRAM_TEXCOORD_ATTRIBUTE 1
-
     m_pShaderProgram = new QOpenGLShaderProgram;
-
     m_pShaderProgram->addShader(m_pFSHader);
-
     m_pShaderProgram->addShader(m_pVSHader);
-
     m_pShaderProgram->bindAttributeLocation("vertexIn", ATTRIB_VERTEX);
-
     m_pShaderProgram->bindAttributeLocation("textureIn", ATTRIB_TEXTURE);
-
     m_pShaderProgram->link();
     m_pShaderProgram->bind();
     if(this->mType == TYPE_YUV420P){
diff --git a/client/webrtc_capture/src/mainwindow.cpp b/client/webrtc_capture/src/mainwindow.cpp
index 52b3a1c..b837274 100644
--- a/client/webrtc_capture/src/mainwindow.cpp
+++ b/client/webrtc_capture/src/mainwindow.cpp
@@ -58,10 +58,6 @@ MainWindow::MainWindow(QWidget *parent)
           char name[100];
           info->GetDeviceName(i,name,100,nullptr,0,nullptr,0);
           ui->comboBox->addItem(QString::asprintf("%s",name),i);
-//        capturer.reset(CameraVideoSink::Create(kWidth, kHeight, kFps, i));
-//        if (capturer) {
-//          break;
-//        }
       }
 
 }
@@ -79,8 +75,17 @@ void MainWindow::OnUpdateFrame( rtc::scoped_refptr<webrtc::I420BufferInterface>&
 void MainWindow::on_pushButton_clicked()
 {
     int id = ui->comboBox->currentData().toInt();
+    webrtc::VideoCaptureCapability p;
 
-    m_capturer.reset(CameraVideoSink::Create(1280, 800, 25, id));
+    std::unique_ptr<webrtc::VideoCaptureModule::DeviceInfo> info(
+      webrtc::VideoCaptureFactory::CreateDeviceInfo());
+
+    char ids[128];
+    info->GetDeviceName(id,nullptr,0,ids,128,nullptr,0);
+    info->GetCapability(ids,id,p);
+    qDebug()<<QString::asprintf("GetCapability:    %d %d %d %d",id,p.width,p.height,p.maxFPS);
+
+    m_capturer.reset(CameraVideoSink::Create(p.width, p.height, 25, id));
     if (!m_capturer) {
         qDebug()<<"error";
     }
diff --git a/client/webrtc_capture/src/mainwindow.ui b/client/webrtc_capture/src/mainwindow.ui
index a13238d..a7586e5 100644
--- a/client/webrtc_capture/src/mainwindow.ui
+++ b/client/webrtc_capture/src/mainwindow.ui
@@ -20,7 +20,7 @@
    <string>MainWindow</string>
   </property>
   <widget class="QWidget" name="centralwidget">
-   <layout class="QVBoxLayout" name="verticalLayout_2" stretch="1,12">
+   <layout class="QVBoxLayout" name="verticalLayout_2" stretch="1,9">
     <item>
      <layout class="QHBoxLayout" name="horizontalLayout" stretch="1,1,1,1,1,3">
       <item>
@@ -72,7 +72,11 @@
      </layout>
     </item>
     <item>
-     <widget class="CPlayWidget" name="openGLWidget"/>
+     <layout class="QGridLayout" name="gridLayout" rowstretch="0" columnstretch="0">
+      <item row="0" column="0">
+       <widget class="CPlayWidget" name="openGLWidget"/>
+      </item>
+     </layout>
     </item>
    </layout>
   </widget>
diff --git a/client/webrtc_capture/webrtc_capture.pro b/client/webrtc_capture/webrtc_capture.pro
index 81f2da9..ddeffaa 100644
--- a/client/webrtc_capture/webrtc_capture.pro
+++ b/client/webrtc_capture/webrtc_capture.pro
@@ -1,6 +1,6 @@
 QT       += core gui
 
-include(D:\\project\\qt_project\\qsswraper\\qsswraper.pri)
+include(D:\\project\\c++qt\\qsswraper\\qsswraper.pri)
 RESOURCES += $$PWD/qss/qss.qrc
 
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets