mirror of
				https://github.com/ossrs/srs.git
				synced 2025-03-09 15:49:59 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			69 lines
		
	
	
	
		
			2.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			69 lines
		
	
	
	
		
			2.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
 | |
|  * ARM NEON optimised Float DSP functions
 | |
|  * Copyright (c) 2008 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/attributes.h"
 | |
| #include "libavutil/cpu.h"
 | |
| #include "libavutil/float_dsp.h"
 | |
| #include "cpu.h"
 | |
| 
 | |
| void ff_vector_fmul_neon(float *dst, const float *src0, const float *src1,
 | |
|                          int len);
 | |
| 
 | |
| void ff_vector_fmac_scalar_neon(float *dst, const float *src, float mul,
 | |
|                                 int len);
 | |
| 
 | |
| void ff_vector_fmul_scalar_neon(float *dst, const float *src, float mul,
 | |
|                                 int len);
 | |
| 
 | |
| void ff_vector_dmul_scalar_neon(double *dst, const double *src, double mul,
 | |
|                                 int len);
 | |
| 
 | |
| void ff_vector_fmul_window_neon(float *dst, const float *src0,
 | |
|                                 const float *src1, const float *win, int len);
 | |
| 
 | |
| void ff_vector_fmul_add_neon(float *dst, const float *src0, const float *src1,
 | |
|                              const float *src2, int len);
 | |
| 
 | |
| void ff_vector_fmul_reverse_neon(float *dst, const float *src0,
 | |
|                                  const float *src1, int len);
 | |
| 
 | |
| void ff_butterflies_float_neon(float *v1, float *v2, int len);
 | |
| 
 | |
| float ff_scalarproduct_float_neon(const float *v1, const float *v2, int len);
 | |
| 
 | |
| av_cold void ff_float_dsp_init_aarch64(AVFloatDSPContext *fdsp)
 | |
| {
 | |
|     int cpu_flags = av_get_cpu_flags();
 | |
| 
 | |
|     if (have_neon(cpu_flags)) {
 | |
|         fdsp->butterflies_float   = ff_butterflies_float_neon;
 | |
|         fdsp->scalarproduct_float = ff_scalarproduct_float_neon;
 | |
|         fdsp->vector_dmul_scalar  = ff_vector_dmul_scalar_neon;
 | |
|         fdsp->vector_fmul         = ff_vector_fmul_neon;
 | |
|         fdsp->vector_fmac_scalar  = ff_vector_fmac_scalar_neon;
 | |
|         fdsp->vector_fmul_add     = ff_vector_fmul_add_neon;
 | |
|         fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_neon;
 | |
|         fdsp->vector_fmul_scalar  = ff_vector_fmul_scalar_neon;
 | |
|         fdsp->vector_fmul_window  = ff_vector_fmul_window_neon;
 | |
|     }
 | |
| }
 |