15 June 2012
Iain Bullard started reverse engineering the proprietary libraries.
- open_cdxalloc as an free reimplementation of Allwinner's libcederxalloc.a.
- CedarXWrapper as a LD_PRELOADed wrapper to help understanding the proprietary libraries.
- CedarXPlayerTest as a basic player to use when testing.
- ReCedro has similar tools as those from IanB above, but with a different angle, works really well.
3 May 2013
wingrime started work on register guide, JPEG, MPEG decoding manuals
nove introduced new MMIO tracer based on Valgrind
22 June 2013
JPEG decoding proof-of-concept was introduced by Jemk
30 August 2013
Workable proof-of-concept VDPAU decoder was introduced by Jemk support MPEG-1/2 and MPEG-4 AVC/h.264 decoding
12 January 2014
First MPEG-4 AVC/h.264 encoder proof-of-concept from Jemk
Blob use direct access to hardware registers using mmap to userspace. Currently known register usage in manuals:
There's ongoing register documentation effort using envytools.