Android VideoView "Video cannot be played" works in Gallery

I receive an error when trying to play a large m4v file in my Android application. "Sorry, this video cannot be played" The VideoView's onError handler gets called like: onError(MediaP开发者_开发百科layer mp, int what, int extra)

With "what" being 1 and "extra" being -2147483648

The exact same video plays without issues in the Gallery application.

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As far as I know, android support mp4 but not m4v, asked and answered here

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have you set the permission to read the internal storage???

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"></uses-permission>

do this and it should work