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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 }
void(* ac3_rshift_int32)(int32_t *src, unsigned int len, unsigned int shift)
Right-shift each value in an array of int32_t by a specified amount.
Definition: ac3dsp.h:76
void ff_ac3_exponent_min_neon(uint8_t *exp, int num_reuse_blocks, int nb_coefs)
void(* float_to_fixed24)(int32_t *dst, const float *src, unsigned int len)
Convert an array of float in range [-1.0,1.0] to int32_t with range [-(1<<24),(1<<24)].
Definition: ac3dsp.h:89
static int shift(int a, int b)
Definition: sonic.c:82
#define have_armv6(flags)
Definition: cpu.h:27
int ff_ac3_max_msb_abs_int16_neon(const int16_t *src, int len)
void(* sum_square_butterfly_float)(float sum[4], const float *coef0, const float *coef1, int len)
Definition: ac3dsp.h:132
Macro definitions for various function/variable attributes.
void ff_ac3_lshift_int16_neon(int16_t *src, unsigned len, unsigned shift)
void ff_ac3_update_bap_counts_arm(uint16_t mant_cnt[16], uint8_t *bap, int len)
uint8_t
#define av_cold
Definition: attributes.h:82
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
int(* ac3_max_msb_abs_int16)(const int16_t *src, int len)
Calculate the maximum MSB of the absolute value of each element in an array of int16_t.
Definition: ac3dsp.h:54
void ff_ac3_rshift_int32_neon(int32_t *src, unsigned len, unsigned shift)
void ff_ac3_sum_square_butterfly_int32_neon(int64_t sum[4], const int32_t *coef0, const int32_t *coef1, int len)
static const uint16_t mask[17]
Definition: lzw.c:38
int8_t exp
Definition: eval.c:64
void ff_ac3_sum_square_butterfly_float_neon(float sum[4], const float *coef0, const float *coef1, int len)
static SDL_Window * window
Definition: ffplay.c:364
#define have_neon(flags)
Definition: cpu.h:27
int32_t
int n
Definition: avisynth_c.h:684
#define src
Definition: vp9dsp.c:530
void(* extract_exponents)(uint8_t *exp, int32_t *coef, int nb_coefs)
Definition: ac3dsp.h:127
void ff_float_to_fixed24_neon(int32_t *dst, const float *src, unsigned int len)
void(* bit_alloc_calc_bap)(int16_t *mask, int16_t *psd, int start, int end, int snr_offset, int floor, const uint8_t *bap_tab, uint8_t *bap)
Calculate bit allocation pointers.
Definition: ac3dsp.h:106
void ff_ac3_extract_exponents_neon(uint8_t *exp, int32_t *coef, int nb_coefs)
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)
av_cold void ff_ac3dsp_init_arm(AC3DSPContext *c, int bit_exact)
void(* apply_window_int16)(int16_t *output, const int16_t *input, const int16_t *window, unsigned int len)
Apply symmetric window in 16-bit fixed-point.
Definition: ac3dsp.h:152
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:76
void ff_apply_window_int16_neon(int16_t *dst, const int16_t *src, const int16_t *window, unsigned n)
void(* update_bap_counts)(uint16_t mant_cnt[16], uint8_t *bap, int len)
Update bap counts using the supplied array of bap.
Definition: ac3dsp.h:117
static double c[64]
void(* ac3_lshift_int16)(int16_t *src, unsigned int len, unsigned int shift)
Left-shift each value in an array of int16_t by a specified amount.
Definition: ac3dsp.h:65
void(* ac3_exponent_min)(uint8_t *exp, int num_reuse_blocks, int nb_coefs)
Set each encoded exponent in a block to the minimum of itself and the exponents in the same frequency...
Definition: ac3dsp.h:43
int len
void(* sum_square_butterfly_int32)(int64_t sum[4], const int32_t *coef0, const int32_t *coef1, int len)
Definition: ac3dsp.h:129
void INT64 start
Definition: avisynth_c.h:690