Changeset adf4ee4 in ffmpeg

Timestamp:

Jun 6, 2014, 11:51:41 AM (11 years ago)

Author:

Michael Niedermayer <michaelni@gmx.at>

Branches:

master

Children:

a80342fe

Parents:

c2e2b29b

git-author:

Christophe Gisquet <christophe.gisquet@gmail.com> (11/24/12 14:55:49)

git-committer:

Michael Niedermayer <michaelni@gmx.at> (06/06/14 11:51:41)

Message:

wma lossless: reuse scalarproduct_and_madd_int16

This is done by padding the coefficient buffer with 0s, because the order
may be only a multiple of 4, and the DSP function requires batches of 8.

However, no sample with such a case was found, so request one if it uses
that kind of order.

Approximate relative speedup depending on instruction set:
plain C: -6%
mmxext: 51%
sse2: 54%

Signed-off-by: Michael Niedermayer <​michaelni@gmx.at>

(No files)