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56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
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/*
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* Bluetooth low-complexity, subband codec (SBC)
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*
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* Copyright (C) 2017 Aurelien Jacobs <aurel@gnuage.org>
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* Copyright (C) 2008-2010 Nokia Corporation
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* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
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* Copyright (C) 2004-2005 Henryk Ploetz <henryk@ploetzli.ch>
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* Copyright (C) 2005-2006 Brad Midgley <bmidgley@xmission.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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/**
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* @file
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* miscellaneous SBC tables
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*/
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#ifndef AVCODEC_SBCDSP_DATA_H
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#define AVCODEC_SBCDSP_DATA_H
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#include "sbc.h"
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#define SBC_PROTO_FIXED_SCALE 16
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#define SBC_COS_TABLE_FIXED_SCALE 15
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/*
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* Constant tables for the use in SIMD optimized analysis filters
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* Each table consists of two parts:
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* 1. reordered "proto" table
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* 2. reordered "cos" table
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*
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* Due to non-symmetrical reordering, separate tables for "even"
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* and "odd" cases are needed
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*/
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extern const int16_t ff_sbcdsp_analysis_consts_fixed4_simd_even[];
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extern const int16_t ff_sbcdsp_analysis_consts_fixed4_simd_odd[];
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extern const int16_t ff_sbcdsp_analysis_consts_fixed8_simd_even[];
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extern const int16_t ff_sbcdsp_analysis_consts_fixed8_simd_odd[];
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#endif /* AVCODEC_SBCDSP_DATA_H */
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