yuv and rgb

[Matias Freytes <mfreytes gtwing efn uncor edu>]

Hello,
        I'm working on video applications and would like to know
if there are any gdk/gtk routines for converting YUV formats to
RGB formats, particularly YUV420 to the current RGB format (16bpp
565/555, 24bpp, ....) as detected by GdkRGB. I know XFree4
supports Xv extensions for some cards, but I'd like sthg more
portable.

        Thank you,
Matias.

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Matias Freytes
Laboratorio de Comunicaciones Digitales
Universidad Nacional de Cordoba
Argentina