48 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			48 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
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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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								#include "config.h"
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								#include "libswscale/swscale.h"
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								#include "libswscale/swscale_internal.h"
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								#include "libavutil/aarch64/cpu.h"
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								void ff_hscale_8_to_15_neon(SwsContext *c, int16_t *dst, int dstW,
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								                            const uint8_t *src, const int16_t *filter,
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								                            const int32_t *filterPos, int filterSize);
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								void ff_yuv2planeX_8_neon(const int16_t *filter, int filterSize,
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								                          const int16_t **src, uint8_t *dest, int dstW,
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								                          const uint8_t *dither, int offset);
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								av_cold void ff_sws_init_swscale_aarch64(SwsContext *c)
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								{
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								    int cpu_flags = av_get_cpu_flags();
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								    if (have_neon(cpu_flags)) {
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								        if (c->srcBpc == 8 && c->dstBpc <= 14 &&
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								            (c->hLumFilterSize % 8) == 0 &&
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								            (c->hChrFilterSize % 8) == 0)
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								        {
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								            c->hyScale = c->hcScale = ff_hscale_8_to_15_neon;
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								        }
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								        if (c->dstBpc == 8) {
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								            c->yuv2planeX = ff_yuv2planeX_8_neon;
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								        }
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								    }
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								}
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