1/*
2 * Bluetooth low-complexity, subband codec (SBC)
3 *
4 * Copyright (C) 2017  Aurelien Jacobs <aurel@gnuage.org>
5 * Copyright (C) 2008-2010  Nokia Corporation
6 * Copyright (C) 2004-2010  Marcel Holtmann <marcel@holtmann.org>
7 * Copyright (C) 2004-2005  Henryk Ploetz <henryk@ploetzli.ch>
8 * Copyright (C) 2005-2006  Brad Midgley <bmidgley@xmission.com>
9 *
10 * This file is part of FFmpeg.
11 *
12 * FFmpeg is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU Lesser General Public
14 * License as published by the Free Software Foundation; either
15 * version 2.1 of the License, or (at your option) any later version.
16 *
17 * FFmpeg is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
20 * Lesser General Public License for more details.
21 *
22 * You should have received a copy of the GNU Lesser General Public
23 * License along with FFmpeg; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 */
26
27/**
28 * @file
29 * miscellaneous SBC tables
30 */
31
32#ifndef AVCODEC_SBCDSP_DATA_H
33#define AVCODEC_SBCDSP_DATA_H
34
35#include "sbc.h"
36
37#define SBC_PROTO_FIXED_SCALE      16
38#define SBC_COS_TABLE_FIXED_SCALE  15
39
40/*
41 * Constant tables for the use in SIMD optimized analysis filters
42 * Each table consists of two parts:
43 * 1. reordered "proto" table
44 * 2. reordered "cos" table
45 *
46 * Due to non-symmetrical reordering, separate tables for "even"
47 * and "odd" cases are needed
48 */
49
50extern const int16_t ff_sbcdsp_analysis_consts_fixed4_simd_even[];
51extern const int16_t ff_sbcdsp_analysis_consts_fixed4_simd_odd[];
52extern const int16_t ff_sbcdsp_analysis_consts_fixed8_simd_even[];
53extern const int16_t ff_sbcdsp_analysis_consts_fixed8_simd_odd[];
54
55#endif /* AVCODEC_SBCDSP_DATA_H */
56