gx
dcecd42de4
Snapshot FFmpeg n7.1 (release tag) с применённым patch'ем для cuframes input format. Используется как FFMPEG_REPO_OVERRIDE в NickM-27/FFmpeg-Builds fork для статической сборки patched binary под Frigate (Debian 12 / glibc 2.36). Apply changes: + libavformat/cuframesdec.c (новый — реализация демуксера) M libavformat/Makefile (CONFIG_CUFRAMES_DEMUXER target) M libavformat/allformats.c (extern declaration) M configure (--enable-libcuframes option + dep check) Patch source: https://git.goldix.org/gx/cuframes (filter/ffmpeg-7.1-cuframes-demuxer.patch) History сброшена (snapshot вместо fork) потому что upstream shallow clone не позволял push в gitea. Полная история FFmpeg — на github.com/FFmpeg/FFmpeg n7.1.
58 lines
2.1 KiB
NASM
58 lines
2.1 KiB
NASM
;******************************************************************************
|
|
;* Vorbis x86 optimizations
|
|
;* Copyright (C) 2006 Loren Merritt <lorenm@u.washington.edu>
|
|
;*
|
|
;* 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
|
|
|
|
pdw_80000000: times 4 dd 0x80000000
|
|
|
|
SECTION .text
|
|
|
|
INIT_XMM sse
|
|
cglobal vorbis_inverse_coupling, 3, 3, 6, mag, ang, block_size
|
|
mova m5, [pdw_80000000]
|
|
shl block_sized, 2
|
|
add magq, block_sizeq
|
|
add angq, block_sizeq
|
|
neg block_sizeq
|
|
|
|
align 16
|
|
.loop:
|
|
mova m0, [magq+block_sizeq]
|
|
mova m1, [angq+block_sizeq]
|
|
xorps m2, m2
|
|
xorps m3, m3
|
|
cmpleps m2, m0 ; m <= 0.0
|
|
cmpleps m3, m1 ; a <= 0.0
|
|
andps m2, m5 ; keep only the sign bit
|
|
xorps m1, m2
|
|
mova m4, m3
|
|
andps m3, m1
|
|
andnps m4, m1
|
|
addps m3, m0 ; a = m + ((a < 0) & (a ^ sign(m)))
|
|
subps m0, m4 ; m = m + ((a > 0) & (a ^ sign(m)))
|
|
mova [angq+block_sizeq], m3
|
|
mova [magq+block_sizeq], m0
|
|
add block_sizeq, mmsize
|
|
jl .loop
|
|
RET
|