shithub: libvpx

Download patch

ref: 84ea002eb1e2e8276589ce24370d53e5d46013b4
parent: 5a80e7a29232e5a717bf948d184d1848240d8882
author: Ronald S. Bultje <rbultje@google.com>
date: Mon Oct 22 07:49:00 EDT 2012

8x8 transform support in splitmv.

For splitmv, where partitioning is 8x16, 16x8 or 8x8, this patch
uses the 8x8 transform (instead of the 4x4) if txfm_mode is
ALLOW_8X8 or ALLOW_16X16. For TX_MODE_SELECT, splitmv can indicate
which of the 2 transform sizes (4x4 or 8x8) it wants to use.

Gains (with hybridtx4x4/8x8/16x16 and tx_select experiments
enabled) on derf: +0.9%, HD: +0.4%, STD/HD: +0.8% (SSIM or overall
PSNR, both metrics show similar improvements).

Change-Id: Ide954b000b415548ed92a7ac78e24f36e60fcf06