Call for testers: MythTV 0.21 port upgrade

[Craig Butler]

> ../../../../../../../local/include/libavcodec/avcodec.h:2353: warning:
> 'ImgReSampleContext' is deprecated (declared
> at ../../../../../../../local/include/libavcodec/avcodec.h:2347)
> ../../../../../../../local/include/libavcodec/avcodec.h:2363: warning:
> 'ImgReSampleContext' is deprecated (declared
> at ../../../../../../../local/include/libavcodec/avcodec.h:2347)
> audiooutputbase.cpp: In member function 'virtual void
> AudioOutputBase::Reconfigure(int, int, int, bool, void*)':
> audiooutputbase.cpp:360: error: 'codec_id_string' was not declared in
> this scope
> *** Error code 1

It seems to be referencing /usr/local/include/libavcodec/avcodec.h
instead of the one that is in mythtv/work/mythtv*/include.  I have
copied that file temporarily into /usr/local/include/libavcodec and the
build has progressed a bit further.... in fact its still compiling as I
type this.

Regards

Craig B