O vídeo do Android não se ajusta à largura da visualização de vídeo quando em retrato, como posso ajustar a largura do meu vídeo à largura da minha videovisão quando em retrato e quando altero a orientação da tela para paisagem gostaria que o vídeo preenchesse o vídeo tela inteira como o aplicativo youtube faz. quando em retrato, o vídeo deve começar de cima para o meio da tela e, quando estiver na paisagem, preencher a tela inteira. aqui está o que eu tentei, eu também adicionei links do completoscreenshot

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:orientation="vertical"
  android:weightSum="100" >

<VideoView
    android:id="@+id/videoview"
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_gravity="center"
    android:layout_weight="53" >
</VideoView>

<LinearLayout
    android:id="@+id/linearLayout"
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_weight="7"
    android:background="@drawable/top_bar"
    android:orientation="horizontal" >

    <LinearLayout
        android:id="@+id/settings"
        android:layout_width="50dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/set"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/settings" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/low_tab"
        android:layout_width="70dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/low"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/low" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/high_tab"
        android:layout_width="80dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/high"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/high" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/audio_tab"
        android:layout_width="70dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/audio"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/audio" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/full_screen"
        android:layout_width="30dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/full"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/full" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/fresh"
        android:layout_width="30dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/refresh"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/refresh" />
    </LinearLayout>
</LinearLayout>

<LinearLayout
    android:id="@+id/linearLayout1"
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_weight="7"
    android:background="@drawable/comment_bar"
    android:orientation="horizontal" >

    <LinearLayout
        android:id="@+id/liveblog_tab"
        android:layout_width="80dp"
        android:layout_height="wrap_content"
        android:background="@drawable/select"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/live_blog" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/addcom_tab"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:background="@drawable/select"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingLeft="15dp"
        android:paddingTop="5dp" >

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/add_comment" />
    </LinearLayout>
</LinearLayout>

<FrameLayout
    android:id="@+id/frame"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="33" >

    <LinearLayout
        android:id="@+id/liveblog"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" >

        <WebView
            android:id="@+id/browser"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent" >
        </WebView>
    </LinearLayout>

    <LinearLayout
        android:id="@+id/comments"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" >
    </LinearLayout>
</FrameLayout>

</LinearLayout>