Update FindFFmpeg to find/search for libswscale

[Maciej Mrozowski]

On Tuesday 18 of May 2010 23:10:55 Alexander Neundorf wrote:
> On Monday 10 May 2010, Christoph Feck wrote:
> > Hello,
> > 
> > For the upcoming FFmpeg based thumbnailer, we need the libswscale library
> > that is part of the FFmpeg project.
> > 
> > The FindFFmpeg.cmake in kdelibs does, however, not handle that library.
> > Could somebody with knowledge of cmake voodoo update that file? It would
> > be nice if an additional HAVE_SWSCALE is added to the results.
> 
> Basically it should boil down to a find_library() call.
> Instead of HAVE_SWSCALE the more cmake-style result would be a
> FFMPEG_SWSCALE_LIBRARY variable, which you can then test for.
> 
> > Possible candidates to look at are
> > http://websvn.kde.org/trunk/kdesupport/strigi/libstreamanalyzer/cmake/Fin
> > dF
> >
> >FMPEG.cmake?view=markup and
> 
> The if(FALSE) in this file are _most_ probably wrong.
> Also the NO_DEFAULT_PATH should not be necessary, instead "HINTS" probably
> should be used instead of "PATHS".
> It should use find_package_handle_standard_args().
> 
> Can you give it a try and polish this file up a bit ?
> Then it can be used also for your thumbnailer I guess.

FYI to fix issue with unavailable HAVE_SWSCALE, some time ago I added private 
FindSwscale.cmake to kdemultimedia/cmake/modules.

http://websvn.kde.org/trunk/KDE/kdemultimedia/cmake/modules/FindSwscale.cmake?view=markup

That being it's not very urgent issue.

-- 
regards
MM