[mythtv] Changes needed for Compilation on Cygwin

[Robin Neatherway]

On 4/17/06, Ed W <lists at wildgooses.com> wrote:
>  When I changed the audio code to inherit from a common audiooutput base
> class I didn't have any way to check that the DirectX stuff was working OK.
> So it's quite possible that something *is* indeed broken there.
>
>  Have a look at a couple of the other output classes to get an idea on the
> functions that are supposed to be implemented.  Its not hard to adapt to the
> new inheritance structure and it brings many benefits

I have updated the DirectX classes with stubs only so that it
compiles, I'm 99% sure it won't work right now. The changes I made are
in the patch attached to the trac ticket for this stuff (they are
rather minimal at the moment of course).

Actually making the audio and video work is going to be quite taxing
as I know almost nothing about DirectX, so if anyone wants to step up,
please do. Otherwise it'll be a learning experience, which I'm fine
with, it might take somewhat longer that's all.

Robin