44 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			44 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
	
	
	
| /*
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|  * ARM optimized Format Conversion Utils
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|  *
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|  * This file is part of FFmpeg.
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|  *
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|  * FFmpeg is free software; you can redistribute it and/or
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|  * modify it under the terms of the GNU Lesser General Public
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|  * License as published by the Free Software Foundation; either
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|  * version 2.1 of the License, or (at your option) any later version.
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|  *
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|  * FFmpeg is distributed in the hope that it will be useful,
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|  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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|  * Lesser General Public License for more details.
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|  *
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|  * You should have received a copy of the GNU Lesser General Public
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|  * License along with FFmpeg; if not, write to the Free Software
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|  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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|  */
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| 
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| #include <stdint.h>
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| 
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| #include "libavutil/attributes.h"
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| #include "libavutil/aarch64/cpu.h"
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| #include "libavcodec/avcodec.h"
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| #include "libavcodec/fmtconvert.h"
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| 
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| void ff_int32_to_float_fmul_array8_neon(FmtConvertContext *c, float *dst,
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|                                         const int32_t *src, const float *mul,
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|                                         int len);
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| void ff_int32_to_float_fmul_scalar_neon(float *dst, const int32_t *src,
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|                                         float mul, int len);
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| 
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| av_cold void ff_fmt_convert_init_aarch64(FmtConvertContext *c,
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|                                          AVCodecContext *avctx)
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| {
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|     int cpu_flags = av_get_cpu_flags();
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| 
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|     if (have_neon(cpu_flags)) {
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|         c->int32_to_float_fmul_array8 = ff_int32_to_float_fmul_array8_neon;
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|         c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_neon;
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|     }
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| }
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