This patch eliminates the intermediate diff buffer usage by combining the short idct and the add residual into one function. The encoder can use the same code as well. Change-Id: I4ea09df0e162591e420d869b7431c2e7f89a8c1a
The commit changed the name of files and function to remove obselete reference to LLM and x8. Change-Id: I973b20fc1a55149ed68b5408b3874768e6f88516