encoded color to a 4-bit index into the DVD palette.
Patch by: Ian Caulfield, ian caulfield & gmx at
Originally committed as revision 9787 to svn://svn.ffmpeg.org/ffmpeg/trunk
have the last line decoded, leaving the bottom line of the bitmap array
uninitialised. Patch by Ian Caulfield, ian dot caulfield gmail dot com.
Originally committed as revision 7767 to svn://svn.ffmpeg.org/ffmpeg/trunk