java - VideoView black flash before and after playing

Question

I have a VideoView which I want to use to play a movieclip. I use it like this to play it and it works.

VideoView vv = new VideoView(this);
vv.setVideoURI(Uri.parse("android.resource://cortex2.hcbj/raw/intro"));
setContentView(vv);
vv.start();

However I see a black flash just before and after the movie clip. The flash in itself isn't a big problem, but the blackness of it is. The background is white, so if the flash is white, or if it dissapears it will be okay.

Answer 1

Today I had the same problem and found a very bad and hacky workaround for this nasty problem: I realized that one can set a background color / drawable onto the VideoView which blends over the video surface and makes it completely hidden. This only works though while the underlying video is still playing, not when it is stopped (neither when it ended normally nor when stopPlayback() was called), otherwise you'd again see a black flicker. The background must also not be set in the beginning, otherwise the video would be completely hidden right from the start.

So the only logical step for me was to post a delayed event just before I start the video - and since I know the video length, I let this event happen just a few milliseconds before it ends normally. I took a screenshot of the last frame in VLC and then blended it like this:

private void startVideo()
{
    introVideo.setBackgroundDrawable(null);
    introVideo.postDelayed(new Runnable() {
        public void run()
        {
            if (!introVideo.isPlaying())
                return;

            introVideo.setBackgroundResource(R.drawable.video_still_image);
            // other stuff here, for example a custom transition to
            // another activity
        }
    }, 7500); // the video is roughly 8000ms long
    introVideo.start();
}

This however was not enough, because when the video actually ended, I still got a short black screen flicker, so I also had to set the still image as background of the container that contained the video (in my case it was the layout of the activity):

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
          android:layout_width="fill_parent"
          android:layout_height="fill_parent"
          android:background="@drawable/video_still_image">

    <VideoView android:id="@+id/introVideo"
              android:layout_width="fill_parent"
              android:layout_height="fill_parent"
              android:layout_alignParentRight="true"
              android:layout_alignParentLeft="true"
              android:layout_alignParentTop="true"
              android:layout_alignParentBottom="true"
              android:layout_marginTop="-10dip" />

</RelativeLayout>

This activity is rendered in fullscreen and the video is (mostly) scaled to the total screen size (screen 1024x600, video 960x640). I say mostly, because for some unknown reason the layout's background image blends through for about 10px on top. This was the last hack I had to apply to make it work - move the video container -10dip into the void on top.

This now looks awesome on my Galaxy Tab, I don't dare to test it on the SGS2 phone, though...