Corrected RGB<->YUV conversion to keep 'metadata' in frame data structures.
Corrected RGB<->YUV conversion to keep 'metadata' in frame data structures.

Matt

sparkslabs/kamaelia,sparkslabs/kamaelia,sparkslabs/kamaelia,sparkslabs/kamaelia,sparkslabs/kamaelia,sparkslabs/kamaelia,sparkslabs/kamaelia,sparkslabs/kamaelia,sparkslabs/kamaelia,sparkslabs/kamaelia