| /* |
| * Copyright (c) 2024 Geoff Hill <geoff@geoffhill.org> |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 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 General Public License for more details. |
| * |
| * You should have received a copy of the GNU 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. |
| */ |
| |
| #include <stdint.h> |
| |
| #include "libavutil/arm/cpu.h" |
| #include "libavutil/attributes.h" |
| #include "libavcodec/ac3dsp.h" |
| #include "config.h" |
| |
| void ff_ac3_exponent_min_neon(uint8_t *exp, int num_reuse_blocks, int nb_coefs); |
| void ff_ac3_extract_exponents_neon(uint8_t *exp, int32_t *coef, int nb_coefs); |
| void ff_float_to_fixed24_neon(int32_t *dst, const float *src, size_t len); |
| void ff_ac3_sum_square_butterfly_int32_neon(int64_t sum[4], |
| const int32_t *coef0, |
| const int32_t *coef1, |
| int len); |
| void ff_ac3_sum_square_butterfly_float_neon(float sum[4], |
| const float *coef0, |
| const float *coef1, |
| int len); |
| |
| av_cold void ff_ac3dsp_init_aarch64(AC3DSPContext *c) |
| { |
| int cpu_flags = av_get_cpu_flags(); |
| if (!have_neon(cpu_flags)) return; |
| |
| c->ac3_exponent_min = ff_ac3_exponent_min_neon; |
| c->extract_exponents = ff_ac3_extract_exponents_neon; |
| c->float_to_fixed24 = ff_float_to_fixed24_neon; |
| c->sum_square_butterfly_int32 = ff_ac3_sum_square_butterfly_int32_neon; |
| c->sum_square_butterfly_float = ff_ac3_sum_square_butterfly_float_neon; |
| } |