[FFmpeg-devel] [PATCH] x86/dsputilenc: optimize sum_abs_dctelem functions

Michael Niedermayer michaelni at gmx.at
Sun May 25 00:45:59 CEST 2014

On Sat, May 24, 2014 at 07:39:22PM -0300, James Almer wrote:
> Use a single register as accumulator, and make the SUM_ABS_DCTELEM
> macro more readable
> Signed-off-by: James Almer <jamrial at gmail.com>
> ---
>  libavcodec/x86/dsputilenc.asm | 44 ++++++++++++++++++-------------------------
>  1 file changed, 18 insertions(+), 26 deletions(-)

what effect does this have on speed ?

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Concerning the gods, I have no means of knowing whether they exist or not
or of what sort they may be, because of the obscurity of the subject, and
the brevity of human life -- Protagoras
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