[Tremor] Where to get it?

[Ketra Kang]

Hi all 

I'm tring to port the Tremor decoder to ARM926EJ-S
Could anyone point me to the site where I can download Tremor?

I found 2 links on this site: http://www.xiph.org/vorbis/

Are these the official places to get them?
1) http://svn.xiph.org/trunk/Tremor/  
2) http://svn.xiph.org/branches/lowmem-branch/Tremor/

How do these 2 code repositories differ?

Many thanks