From 8992cb1d0d07edc33d274f6d7924ecdf6f83d994 Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Thu, 5 Sep 2013 17:57:22 +0100 Subject: making act segmenter --- ffmpeg/libavresample/x86/util.asm | 41 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 ffmpeg/libavresample/x86/util.asm (limited to 'ffmpeg/libavresample/x86/util.asm') diff --git a/ffmpeg/libavresample/x86/util.asm b/ffmpeg/libavresample/x86/util.asm new file mode 100644 index 0000000..0ce9531 --- /dev/null +++ b/ffmpeg/libavresample/x86/util.asm @@ -0,0 +1,41 @@ +;****************************************************************************** +;* x86 utility macros for libavresample +;* Copyright (c) 2012 Justin Ruggles +;* +;* This file is part of Libav. +;* +;* Libav is free software; you can redistribute it and/or +;* modify it under the terms of the GNU Lesser General Public +;* License as published by the Free Software Foundation; either +;* version 2.1 of the License, or (at your option) any later version. +;* +;* Libav is distributed in the hope that it will be useful, +;* but WITHOUT ANY WARRANTY; without even the implied warranty of +;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +;* Lesser General Public License for more details. +;* +;* You should have received a copy of the GNU Lesser General Public +;* License along with Libav; if not, write to the Free Software +;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA +;****************************************************************************** + +%macro S16_TO_S32_SX 2 ; src/low dst, high dst +%if cpuflag(sse4) + pmovsxwd m%2, m%1 + psrldq m%1, 8 + pmovsxwd m%1, m%1 + SWAP %1, %2 +%else + mova m%2, m%1 + punpckhwd m%2, m%2 + punpcklwd m%1, m%1 + psrad m%2, 16 + psrad m%1, 16 +%endif +%endmacro + +%macro DEINT2_PS 3 ; src0/even dst, src1/odd dst, temp + shufps m%3, m%1, m%2, q3131 + shufps m%1, m%2, q2020 + SWAP %2,%3 +%endmacro -- cgit v1.2.3