Original commit message from CVS: * gst/videoscale/videoscale.c: (gst_videoscale_scale_nearest), (gst_videoscale_scale_nearest_str2), (gst_videoscale_scale_nearest_str4), (gst_videoscale_scale_nearest_32bit), (gst_videoscale_scale_nearest_24bit), (gst_videoscale_scale_nearest_16bit): Fix the scaling algorithm and avoid a buffer overflow. removed the while loop in the scaling function as it was used for point sampling only.