1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/*
* Bluetooth low-complexity, subband codec (SBC)
*
* Copyright (C) 2017 Aurelien Jacobs <aurel@gnuage.org>
* Copyright (C) 2008-2010 Nokia Corporation
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
* Copyright (C) 2004-2005 Henryk Ploetz <henryk@ploetzli.ch>
* Copyright (C) 2005-2006 Brad Midgley <bmidgley@xmission.com>
*
* 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
*/
/**
* @file
* SBC MMX optimization for some basic "building bricks"
*/
#include "libavutil/cpu.h"
#include "libavutil/x86/cpu.h"
#include "libavcodec/sbcdsp.h"
void ff_sbc_analyze_4_mmx(const int16_t *in, int32_t *out, const int16_t *consts);
void ff_sbc_analyze_8_mmx(const int16_t *in, int32_t *out, const int16_t *consts);
void ff_sbc_calc_scalefactors_mmx(int32_t sb_sample_f[16][2][8],
uint32_t scale_factor[2][8],
int blocks, int channels, int subbands);
av_cold void ff_sbcdsp_init_x86(SBCDSPContext *s)
{
int cpu_flags = av_get_cpu_flags();
if (EXTERNAL_MMX(cpu_flags)) {
s->sbc_analyze_4 = ff_sbc_analyze_4_mmx;
s->sbc_analyze_8 = ff_sbc_analyze_8_mmx;
s->sbc_calc_scalefactors = ff_sbc_calc_scalefactors_mmx;
}
}
|
