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ac3dsp_init_arm.c
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1 /*
2  * Copyright (c) 2011 Mans Rullgard <mans@mansr.com>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <stdint.h>
22 
23 #include "libavutil/arm/cpu.h"
24 #include "libavutil/attributes.h"
25 #include "libavcodec/ac3dsp.h"
26 #include "config.h"
27 
28 void ff_ac3_exponent_min_neon(uint8_t *exp, int num_reuse_blocks, int nb_coefs);
29 int ff_ac3_max_msb_abs_int16_neon(const int16_t *src, int len);
30 void ff_ac3_lshift_int16_neon(int16_t *src, unsigned len, unsigned shift);
31 void ff_ac3_rshift_int32_neon(int32_t *src, unsigned len, unsigned shift);
32 void ff_float_to_fixed24_neon(int32_t *dst, const float *src, unsigned int len);
33 void ff_ac3_extract_exponents_neon(uint8_t *exp, int32_t *coef, int nb_coefs);
34 void ff_apply_window_int16_neon(int16_t *dst, const int16_t *src,
35  const int16_t *window, unsigned n);
36 void ff_ac3_sum_square_butterfly_int32_neon(int64_t sum[4],
37  const int32_t *coef0,
38  const int32_t *coef1,
39  int len);
41  const float *coef0,
42  const float *coef1,
43  int len);
44 
45 void ff_ac3_bit_alloc_calc_bap_armv6(int16_t *mask, int16_t *psd,
46  int start, int end,
47  int snr_offset, int floor,
48  const uint8_t *bap_tab, uint8_t *bap);
49 
50 void ff_ac3_update_bap_counts_arm(uint16_t mant_cnt[16], uint8_t *bap, int len);
51 
53 {
54  int cpu_flags = av_get_cpu_flags();
55 
57 
58  if (have_armv6(cpu_flags)) {
60  }
61 
62  if (have_neon(cpu_flags)) {
72  }
73 }