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