This color conversion code is from the Chromium open source project available here: http://code.google.com/chromium/ The code comes from svn revision 40876. The code was copied from a Chromium svn checkout using the 'update.sh' script which then applies patches for our build and to add dynamic CPU detection. convert.patch: Change Chromium code to build using Mozilla build system. Add runtime CPU detection for MMX Move default C implementation to work on all platforms. picture_region.patch: Change Chromium code to allow a picture region. The YUV conversion will convert within this picture region only. remove_scale.patch: Removes Chromium scaling code. export.patch: Fix export for building on comm-central win64_mac64.patch: Fallback to C implementation on Windows and Mac OS X 64 bit yv24.patch: Adds YCbCr 4:4:4 support row_c_fix.patch: Fix broken C fallback code (See bug 561385). bug572034_mac_64bit.patch: Fix x86_64 linux code so it works on OS X. solaris.patch: Adds Solaris support, fallback to C implementation on SPARC