[FFmpeg-devel] [PATCH] hevc_mc: reduce stride for bidir temp buffers

Michael Niedermayer michaelni at gmx.at
Sun Jul 27 19:18:46 CEST 2014


On Sun, Jul 27, 2014 at 10:24:43AM +0200, Christophe Gisquet wrote:
> The stride is sometimes way bigger than actually needed. ptrdiff_t is
> the actual type used. Aligning to 8 is needed as the lines must have
> aligned addresses for SIMD.
> 
> -- 
> Christophe

>  hevc.c |    9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
> 2445ba15d38b2472f8f1b24aa75e63c089971480  0012-hevc_mc-reduce-stride-for-bidir-temp-buffers.patch
> From 126adf820bc54c2d00f794629595ad6310fbfc37 Mon Sep 17 00:00:00 2001
> From: Christophe Gisquet <christophe.gisquet at gmail.com>
> Date: Sat, 26 Jul 2014 17:17:18 +0200
> Subject: [PATCH 12/13] hevc_mc: reduce stride for bidir temp buffers
> 
> It is unconditionally set to 64, which is quite higher than the
> actual block size.

is this faster?

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Those who are too smart to engage in politics are punished by being
governed by those who are dumber. -- Plato 
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