| /* |
| * Copyright © 2023 Rémi Denis-Courmont. |
| * |
| * 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 |
| */ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include "config.h" |
| #include "libavutil/attributes.h" |
| #include "libavutil/cpu.h" |
| #include "libavcodec/ac3dsp.h" |
| |
| void ff_ac3_exponent_min_rvb(uint8_t *exp, int, int); |
| void ff_ac3_exponent_min_rvv(uint8_t *exp, int, int); |
| void ff_extract_exponents_rvb(uint8_t *exp, int32_t *coef, int nb_coefs); |
| void ff_extract_exponents_rvvb(uint8_t *exp, int32_t *coef, int nb_coefs); |
| void ff_float_to_fixed24_rvv(int32_t *dst, const float *src, size_t len); |
| void ff_sum_square_butterfly_int32_rvv(int64_t *, const int32_t *, |
| const int32_t *, int); |
| void ff_sum_square_butterfly_float_rvv(float *, const float *, |
| const float *, int); |
| |
| av_cold void ff_ac3dsp_init_riscv(AC3DSPContext *c) |
| { |
| #if HAVE_RV |
| int flags = av_get_cpu_flags(); |
| |
| if (flags & AV_CPU_FLAG_RVB_BASIC) |
| c->ac3_exponent_min = ff_ac3_exponent_min_rvb; |
| if (flags & AV_CPU_FLAG_RVV_I32) |
| c->ac3_exponent_min = ff_ac3_exponent_min_rvv; |
| |
| if (flags & AV_CPU_FLAG_RVB_ADDR) { |
| if (flags & AV_CPU_FLAG_RVB_BASIC) |
| c->extract_exponents = ff_extract_exponents_rvb; |
| # if HAVE_RV_ZVBB |
| if (flags & AV_CPU_FLAG_RV_ZVBB) |
| c->extract_exponents = ff_extract_exponents_rvvb; |
| # endif |
| if (flags & AV_CPU_FLAG_RVV_F32) { |
| c->float_to_fixed24 = ff_float_to_fixed24_rvv; |
| c->sum_square_butterfly_float = ff_sum_square_butterfly_float_rvv; |
| } |
| # if __riscv_xlen >= 64 |
| if (flags & AV_CPU_FLAG_RVV_I64) |
| c->sum_square_butterfly_int32 = ff_sum_square_butterfly_int32_rvv; |
| # endif |
| } |
| #endif |
| } |