mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
f0b7882ceb
The .text section is already 16-byte aligned by default on all supported platforms so `SECTION_TEXT` isn't any different from `SECTION .text`.
55 lines
1.8 KiB
NASM
55 lines
1.8 KiB
NASM
;******************************************************************************
|
|
;* SIMD optimized DSP functions for G722 coding
|
|
;*
|
|
;* Copyright (c) 2014 James Almer
|
|
;*
|
|
;* This file is part of FFmpeg.
|
|
;*
|
|
;* FFmpeg 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.
|
|
;*
|
|
;* FFmpeg 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 FFmpeg; if not, write to the Free Software
|
|
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
;******************************************************************************
|
|
|
|
%include "libavutil/x86/x86util.asm"
|
|
|
|
SECTION_RODATA
|
|
|
|
pw_qmf_coeffs: dw 3, -210, -11, -805, -11, 951, 53, 3876
|
|
pw_qmf_coeffs2: dw 12, 3876, -156, 951, 32, -805, 362, -210
|
|
pw_qmf_coeffs3: dw 362, 0 , 32, 0, -156, 0, 12, 0
|
|
pw_qmf_coeffs4: dw 53, 0, -11, 0, -11, 0, 3, 0
|
|
|
|
SECTION .text
|
|
|
|
INIT_XMM sse2
|
|
cglobal g722_apply_qmf, 2, 2, 5, prev, out
|
|
movu m0, [prevq+mmsize*0]
|
|
movu m1, [prevq+mmsize*1]
|
|
movu m2, [prevq+mmsize*2]
|
|
punpcklwd m3, m0, m1
|
|
punpckhwd m0, m1
|
|
punpcklwd m4, m2, m2
|
|
punpckhwd m2, m2
|
|
pmaddwd m3, [pw_qmf_coeffs ]
|
|
pmaddwd m0, [pw_qmf_coeffs2]
|
|
pmaddwd m4, [pw_qmf_coeffs3]
|
|
pmaddwd m2, [pw_qmf_coeffs4]
|
|
paddd m0, m3
|
|
paddd m2, m4
|
|
paddd m0, m2
|
|
pshufd m2, m0, q0032
|
|
paddd m0, m2
|
|
pshufd m0, m0, q0001
|
|
movq [outq], m0
|
|
RET
|