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 50 extern const int16_t ff_sbcdsp_analysis_consts_fixed4_simd_even[]; 51 extern const int16_t ff_sbcdsp_analysis_consts_fixed4_simd_odd[]; 52 extern const int16_t ff_sbcdsp_analysis_consts_fixed8_simd_even[]; 53 extern const int16_t ff_sbcdsp_analysis_consts_fixed8_simd_odd[]; 54 55 #endif /* AVCODEC_SBCDSP_DATA_H */ 56