FFmpeg
libavfilter
x86
avf_showcqt_init.c
Go to the documentation of this file.
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/*
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* Copyright (c) 2016 Muhammad Faiz <mfcc64@gmail.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "
libavutil/attributes.h
"
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#include "
libavutil/cpu.h
"
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#include "
libavutil/x86/cpu.h
"
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#include "
libavfilter/avf_showcqt.h
"
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#define DECLARE_CQT_CALC(type) \
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void ff_showcqt_cqt_calc_##type(AVComplexFloat *dst, const AVComplexFloat *src, \
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const Coeffs *coeffs, int len, int fft_len)
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DECLARE_CQT_CALC
(
sse
);
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DECLARE_CQT_CALC
(sse3);
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DECLARE_CQT_CALC
(avx);
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DECLARE_CQT_CALC
(fma3);
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DECLARE_CQT_CALC
(fma4);
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#define permute_coeffs_0 NULL
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static
void
permute_coeffs_01452367
(
float
*v,
int
len
)
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{
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int
k;
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for
(k = 0; k <
len
; k += 8) {
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FFSWAP
(
float
, v[k+2], v[k+4]);
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FFSWAP
(
float
, v[k+3], v[k+5]);
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}
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}
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av_cold
void
ff_showcqt_init_x86
(
ShowCQTContext
*
s
)
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{
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int
cpuflags =
av_get_cpu_flags
();
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#define SELECT_CQT_CALC(type, TYPE, align, perm) \
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if (EXTERNAL_##TYPE(cpuflags)) { \
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s->cqt_calc = ff_showcqt_cqt_calc_##type; \
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s->cqt_align = align; \
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s->permute_coeffs = permute_coeffs_##perm; \
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}
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SELECT_CQT_CALC
(
sse
, SSE, 4, 0);
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SELECT_CQT_CALC
(sse3, SSE3_FAST, 4, 0);
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SELECT_CQT_CALC
(fma4, FMA4, 4, 0);
// using xmm
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SELECT_CQT_CALC
(avx, AVX_FAST, 8, 01452367);
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SELECT_CQT_CALC
(fma3, FMA3_FAST, 8, 01452367);
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}
DECLARE_CQT_CALC
#define DECLARE_CQT_CALC(type)
Definition:
avf_showcqt_init.c:26
cpu.h
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:101
av_cold
#define av_cold
Definition:
attributes.h:90
s
#define s(width, name)
Definition:
cbs_vp9.c:256
sse
static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride)
Definition:
mpegvideo_enc.c:2537
ShowCQTContext
Definition:
avf_showcqt.h:46
cpu.h
attributes.h
permute_coeffs_01452367
static void permute_coeffs_01452367(float *v, int len)
Definition:
avf_showcqt_init.c:38
len
int len
Definition:
vorbis_enc_data.h:426
ff_showcqt_init_x86
av_cold void ff_showcqt_init_x86(ShowCQTContext *s)
Definition:
avf_showcqt_init.c:47
FFSWAP
#define FFSWAP(type, a, b)
Definition:
macros.h:52
avf_showcqt.h
SELECT_CQT_CALC
#define SELECT_CQT_CALC(type, TYPE, align, perm)
Generated on Wed Aug 24 2022 21:42:12 for FFmpeg by
1.8.17