Let SwScaler know that RGB48 BE/LE is 16-bits per component format.

git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@29317 b3059339-0415-0410-9bf9-f77b7e298cf2

swscale_internal.h

@@ -299,6 +299,8 @@ const char *sws_format_name(int format);
 #define is16BPS(x)      (           \
            (x)==PIX_FMT_GRAY16BE    \
         || (x)==PIX_FMT_GRAY16LE    \
+        || (x)==PIX_FMT_RGB48BE     \
+        || (x)==PIX_FMT_RGB48LE     \
         || (x)==PIX_FMT_YUV420PLE   \
         || (x)==PIX_FMT_YUV422PLE   \
         || (x)==PIX_FMT_YUV444PLE   \