| /* | |
| * Bluetooth low-complexity, subband codec (SBC) | |
| * | |
| * Copyright (C) 2017 Aurelien Jacobs <[email protected]> | |
| * Copyright (C) 2008-2010 Nokia Corporation | |
| * Copyright (C) 2004-2010 Marcel Holtmann <[email protected]> | |
| * Copyright (C) 2004-2005 Henryk Ploetz <[email protected]> | |
| * Copyright (C) 2005-2006 Brad Midgley <[email protected]> | |
| * | |
| * 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" | |
| */ | |
| 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; | |
| } | |
| } | |