| 0,0 → 1,70 |
|---|
| /* |
| * Copyright (c) 2011 Mans Rullgard <mans@mansr.com> |
| * |
| * 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 <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); |
| int ff_ac3_max_msb_abs_int16_neon(const int16_t *src, int len); |
| void ff_ac3_lshift_int16_neon(int16_t *src, unsigned len, unsigned shift); |
| void ff_ac3_rshift_int32_neon(int32_t *src, unsigned len, unsigned shift); |
| void ff_float_to_fixed24_neon(int32_t *dst, const float *src, unsigned int len); |
| void ff_ac3_extract_exponents_neon(uint8_t *exp, int32_t *coef, int nb_coefs); |
| 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); |
| |
| void ff_ac3_bit_alloc_calc_bap_armv6(int16_t *mask, int16_t *psd, |
| int start, int end, |
| int snr_offset, int floor, |
| const uint8_t *bap_tab, uint8_t *bap); |
| |
| void ff_ac3_update_bap_counts_arm(uint16_t mant_cnt[16], uint8_t *bap, int len); |
| |
| av_cold void ff_ac3dsp_init_arm(AC3DSPContext *c, int bit_exact) |
| { |
| int cpu_flags = av_get_cpu_flags(); |
| |
| c->update_bap_counts = ff_ac3_update_bap_counts_arm; |
| |
| if (have_armv6(cpu_flags)) { |
| c->bit_alloc_calc_bap = ff_ac3_bit_alloc_calc_bap_armv6; |
| } |
| |
| if (have_neon(cpu_flags)) { |
| c->ac3_exponent_min = ff_ac3_exponent_min_neon; |
| c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_neon; |
| c->ac3_lshift_int16 = ff_ac3_lshift_int16_neon; |
| c->ac3_rshift_int32 = ff_ac3_rshift_int32_neon; |
| c->float_to_fixed24 = ff_float_to_fixed24_neon; |
| c->extract_exponents = ff_ac3_extract_exponents_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; |
| } |
| } |