mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
d526c5338d
This allows masking CPU features with the -cpuflags avconv option which is useful for testing different optimisations without rebuilding. Signed-off-by: Mans Rullgard <mans@mansr.com>
61 lines
2.4 KiB
C
61 lines
2.4 KiB
C
/*
|
|
* Copyright (c) 2011 Mans Rullgard <mans@mansr.com>
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; 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_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;
|
|
}
|
|
}
|