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			651 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			651 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2012 Laurent de Soras
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|  * Copyright (c) 2013 Fredrik Mellbin
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|  * Copyright (c) 2015 Paul B Mahol
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|  * Copyright (c) 2015 James Darnley
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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 "libavutil/imgutils.h"
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| #include "libavutil/opt.h"
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| #include "libavutil/pixdesc.h"
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| #include "libavutil/qsort.h"
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| #include "avfilter.h"
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| #include "formats.h"
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| #include "internal.h"
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| #include "removegrain.h"
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| #include "video.h"
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| 
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| #define OFFSET(x) offsetof(RemoveGrainContext, x)
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| #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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| 
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| static const AVOption removegrain_options[] = {
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|     { "m0", "set mode for 1st plane", OFFSET(mode[0]), AV_OPT_TYPE_INT, {.i64=0}, 0, 24, FLAGS },
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|     { "m1", "set mode for 2nd plane", OFFSET(mode[1]), AV_OPT_TYPE_INT, {.i64=0}, 0, 24, FLAGS },
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|     { "m2", "set mode for 3rd plane", OFFSET(mode[2]), AV_OPT_TYPE_INT, {.i64=0}, 0, 24, FLAGS },
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|     { "m3", "set mode for 4th plane", OFFSET(mode[3]), AV_OPT_TYPE_INT, {.i64=0}, 0, 24, FLAGS },
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|     {NULL}
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| };
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| 
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| AVFILTER_DEFINE_CLASS(removegrain);
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| 
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| static const enum AVPixelFormat pix_fmts[] = {
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|     AV_PIX_FMT_GRAY8,
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|     AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P,
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|     AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
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|     AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
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|     AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
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|     AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
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|     AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
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|     AV_PIX_FMT_NONE
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| };
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| 
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| #define REMOVE_GRAIN_SORT_AXIS       \
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|     const int ma1 = FFMAX(a1, a8);   \
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|     const int mi1 = FFMIN(a1, a8);   \
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|     const int ma2 = FFMAX(a2, a7);   \
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|     const int mi2 = FFMIN(a2, a7);   \
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|     const int ma3 = FFMAX(a3, a6);   \
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|     const int mi3 = FFMIN(a3, a6);   \
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|     const int ma4 = FFMAX(a4, a5);   \
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|     const int mi4 = FFMIN(a4, a5);
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| 
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| static int mode01(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     const int mi = FFMIN(FFMIN(FFMIN(a1, a2), FFMIN(a3, a4)), FFMIN(FFMIN(a5, a6), FFMIN(a7, a8)));
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|     const int ma = FFMAX(FFMAX(FFMAX(a1, a2), FFMAX(a3, a4)), FFMAX(FFMAX(a5, a6), FFMAX(a7, a8)));
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| 
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|     return av_clip(c, mi, ma);
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| }
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| 
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| static int cmp_int(const void *p1, const void *p2)
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| {
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|     int left  = *(const int *)p1;
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|     int right = *(const int *)p2;
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|     return FFDIFFSIGN(left, right);
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| }
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| 
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| static int mode02(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     int a[8] = { a1, a2, a3, a4, a5, a6, a7, a8 };
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| 
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|     AV_QSORT(a, 8, int, cmp_int);
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| 
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|     return av_clip(c, a[2 - 1 ], a[7 - 1]);
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| }
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| 
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| static int mode03(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     int a[8] = { a1, a2, a3, a4, a5, a6, a7, a8 };
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| 
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|     AV_QSORT(a, 8, int, cmp_int);
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| 
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|     return av_clip(c, a[3 - 1 ], a[6 - 1]);
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| }
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| 
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| static int mode04(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     int a[8] = { a1, a2, a3, a4, a5, a6, a7, a8 };
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| 
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|     AV_QSORT(a, 8, int, cmp_int);
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| 
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|     return av_clip(c, a[4 - 1 ], a[5 - 1]);
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| }
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| 
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| static int mode05(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     REMOVE_GRAIN_SORT_AXIS
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| 
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|     const int c1 = FFABS(c - av_clip(c, mi1, ma1));
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|     const int c2 = FFABS(c - av_clip(c, mi2, ma2));
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|     const int c3 = FFABS(c - av_clip(c, mi3, ma3));
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|     const int c4 = FFABS(c - av_clip(c, mi4, ma4));
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| 
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|     const int mindiff = FFMIN(FFMIN(c1, c2), FFMIN(c3, c4));
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| 
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|     /* When adding SIMD notice the return order here: 4, 2, 3, 1. */
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|     if (mindiff == c4) {
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|         return av_clip(c, mi4, ma4);
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|     } else if (mindiff == c2) {
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|         return av_clip(c, mi2, ma2);
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|     } else if (mindiff == c3) {
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|         return av_clip(c, mi3, ma3);
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|     }
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| 
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|     return av_clip(c, mi1, ma1);
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| }
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| 
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| static int mode06(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     REMOVE_GRAIN_SORT_AXIS
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| 
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|     const int d1 = ma1 - mi1;
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|     const int d2 = ma2 - mi2;
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|     const int d3 = ma3 - mi3;
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|     const int d4 = ma4 - mi4;
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| 
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|     const int cli1 = av_clip(c, mi1, ma1);
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|     const int cli2 = av_clip(c, mi2, ma2);
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|     const int cli3 = av_clip(c, mi3, ma3);
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|     const int cli4 = av_clip(c, mi4, ma4);
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| 
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|     const int c1 = av_clip_uint16((FFABS(c - cli1) << 1) + d1);
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|     const int c2 = av_clip_uint16((FFABS(c - cli2) << 1) + d2);
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|     const int c3 = av_clip_uint16((FFABS(c - cli3) << 1) + d3);
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|     const int c4 = av_clip_uint16((FFABS(c - cli4) << 1) + d4);
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| 
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|     const int mindiff = FFMIN(FFMIN(c1, c2), FFMIN(c3, c4));
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| 
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|     if (mindiff == c4) {
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|         return cli4;
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|     } else if (mindiff == c2) {
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|         return cli2;
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|     } else if (mindiff == c3) {
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|         return cli3;
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|     }
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| 
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|     return cli1;
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| }
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| 
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| static int mode07(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     REMOVE_GRAIN_SORT_AXIS
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| 
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|     const int d1 = ma1 - mi1;
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|     const int d2 = ma2 - mi2;
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|     const int d3 = ma3 - mi3;
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|     const int d4 = ma4 - mi4;
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| 
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|     const int cli1 = av_clip(c, mi1, ma1);
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|     const int cli2 = av_clip(c, mi2, ma2);
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|     const int cli3 = av_clip(c, mi3, ma3);
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|     const int cli4 = av_clip(c, mi4, ma4);
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| 
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|     const int c1 = FFABS(c - cli1) + d1;
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|     const int c2 = FFABS(c - cli2) + d2;
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|     const int c3 = FFABS(c - cli3) + d3;
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|     const int c4 = FFABS(c - cli4) + d4;
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| 
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|     const int mindiff = FFMIN(FFMIN(c1, c2), FFMIN(c3, c4));
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| 
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|     if (mindiff == c4) {
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|         return cli4;
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|     } else if (mindiff == c2) {
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|         return cli2;
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|     } else if (mindiff == c3) {
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|         return cli3;
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|     }
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| 
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|     return cli1;
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| }
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| 
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| static int mode08(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     REMOVE_GRAIN_SORT_AXIS
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| 
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|     const int d1 = ma1 - mi1;
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|     const int d2 = ma2 - mi2;
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|     const int d3 = ma3 - mi3;
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|     const int d4 = ma4 - mi4;
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| 
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|     const int cli1 = av_clip(c, mi1, ma1);
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|     const int cli2 = av_clip(c, mi2, ma2);
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|     const int cli3 = av_clip(c, mi3, ma3);
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|     const int cli4 = av_clip(c, mi4, ma4);
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| 
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|     const int c1 = av_clip_uint16(FFABS(c - cli1) + (d1 << 1));
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|     const int c2 = av_clip_uint16(FFABS(c - cli2) + (d2 << 1));
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|     const int c3 = av_clip_uint16(FFABS(c - cli3) + (d3 << 1));
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|     const int c4 = av_clip_uint16(FFABS(c - cli4) + (d4 << 1));
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| 
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|     const int mindiff = FFMIN(FFMIN(c1, c2), FFMIN(c3, c4));
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| 
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|     if (mindiff == c4) {
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|         return cli4;
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|     } else if (mindiff == c2) {
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|         return cli2;
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|     } else if (mindiff == c3) {
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|         return cli3;
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|     }
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| 
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|     return cli1;
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| }
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| 
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| static int mode09(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     REMOVE_GRAIN_SORT_AXIS
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| 
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|     const int d1 = ma1 - mi1;
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|     const int d2 = ma2 - mi2;
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|     const int d3 = ma3 - mi3;
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|     const int d4 = ma4 - mi4;
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| 
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|     const int mindiff = FFMIN(FFMIN(d1, d2), FFMIN(d3, d4));
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| 
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|     if (mindiff == d4) {
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|         return av_clip(c, mi4, ma4);
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|     } else if (mindiff == d2) {
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|         return av_clip(c, mi2, ma2);
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|     } else if (mindiff == d3) {
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|         return av_clip(c, mi3, ma3);
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|     }
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| 
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|     return av_clip(c, mi1, ma1);
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| }
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| 
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| static int mode10(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     const int d1 = FFABS(c - a1);
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|     const int d2 = FFABS(c - a2);
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|     const int d3 = FFABS(c - a3);
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|     const int d4 = FFABS(c - a4);
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|     const int d5 = FFABS(c - a5);
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|     const int d6 = FFABS(c - a6);
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|     const int d7 = FFABS(c - a7);
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|     const int d8 = FFABS(c - a8);
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| 
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|     const int mindiff = FFMIN(FFMIN(FFMIN(d1, d2), FFMIN(d3, d4)),
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|                               FFMIN(FFMIN(d5, d6), FFMIN(d7, d8)));
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| 
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|     if (mindiff == d7) return a7;
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|     if (mindiff == d8) return a8;
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|     if (mindiff == d6) return a6;
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|     if (mindiff == d2) return a2;
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|     if (mindiff == d3) return a3;
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|     if (mindiff == d1) return a1;
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|     if (mindiff == d5) return a5;
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| 
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|     return a4;
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| }
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| 
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| static int mode1112(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     const int sum = 4 * c + 2 * (a2 + a4 + a5 + a7) + a1 + a3 + a6 + a8;
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|     const int val = (sum + 8) >> 4;
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| 
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|     return val;
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| }
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| 
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| static int mode1314(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     const int d1 = FFABS(a1 - a8);
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|     const int d2 = FFABS(a2 - a7);
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|     const int d3 = FFABS(a3 - a6);
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| 
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|     const int mindiff = FFMIN(FFMIN(d1, d2), d3);
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| 
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|     if (mindiff == d2) {
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|         return (a2 + a7 + 1) >> 1;
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|     }
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|     if (mindiff == d3) {
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|         return (a3 + a6 + 1) >> 1;
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|     }
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| 
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|     return (a1 + a8 + 1) >> 1;
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| }
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| 
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| static int mode1516(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     const int d1 = FFABS(a1 - a8);
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|     const int d2 = FFABS(a2 - a7);
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|     const int d3 = FFABS(a3 - a6);
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| 
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|     const int mindiff = FFMIN(FFMIN(d1, d2), d3);
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|     const int average = (2 * (a2 + a7) + a1 + a3 + a6 + a8 + 4) >> 3;
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| 
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|     if (mindiff == d2) {
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|         return av_clip(average, FFMIN(a2, a7), FFMAX(a2, a7));
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|     }
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|     if (mindiff == d3) {
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|         return av_clip(average, FFMIN(a3, a6), FFMAX(a3, a6));
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|     }
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| 
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|     return av_clip(average, FFMIN(a1, a8), FFMAX(a1, a8));
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| }
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| 
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| static int mode17(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     REMOVE_GRAIN_SORT_AXIS
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| 
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|     const int l = FFMAX(FFMAX(mi1, mi2), FFMAX(mi3, mi4));
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|     const int u = FFMIN(FFMIN(ma1, ma2), FFMIN(ma3, ma4));
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| 
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|     return av_clip(c, FFMIN(l, u), FFMAX(l, u));
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| }
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| 
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| static int mode18(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     const int d1 = FFMAX(FFABS(c - a1), FFABS(c - a8));
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|     const int d2 = FFMAX(FFABS(c - a2), FFABS(c - a7));
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|     const int d3 = FFMAX(FFABS(c - a3), FFABS(c - a6));
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|     const int d4 = FFMAX(FFABS(c - a4), FFABS(c - a5));
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| 
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|     const int mindiff = FFMIN(FFMIN(d1, d2), FFMIN(d3, d4));
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| 
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|     if (mindiff == d4) {
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|         return av_clip(c, FFMIN(a4, a5), FFMAX(a4, a5));
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|     }
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|     if (mindiff == d2) {
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|         return av_clip(c, FFMIN(a2, a7), FFMAX(a2, a7));
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|     }
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|     if (mindiff == d3) {
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|         return av_clip(c, FFMIN(a3, a6), FFMAX(a3, a6));
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|     }
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| 
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|     return av_clip(c, FFMIN(a1, a8), FFMAX(a1, a8));
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| }
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| 
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| static int mode19(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     const int sum = a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8;
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|     const int val = (sum + 4) >> 3;
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| 
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|     return val;
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| }
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| 
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| static int mode20(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     const int sum = a1 + a2 + a3 + a4 + c + a5 + a6 + a7 + a8;
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|     const int val = (sum + 4) / 9;
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| 
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|     return val;
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| }
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| 
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| static int mode21(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     const int l1l = (a1 + a8) >> 1;
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|     const int l2l = (a2 + a7) >> 1;
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|     const int l3l = (a3 + a6) >> 1;
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|     const int l4l = (a4 + a5) >> 1;
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| 
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|     const int l1h = (a1 + a8 + 1) >> 1;
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|     const int l2h = (a2 + a7 + 1) >> 1;
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|     const int l3h = (a3 + a6 + 1) >> 1;
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|     const int l4h = (a4 + a5 + 1) >> 1;
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| 
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|     const int mi = FFMIN(FFMIN(l1l, l2l), FFMIN(l3l, l4l));
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|     const int ma = FFMAX(FFMAX(l1h, l2h), FFMAX(l3h, l4h));
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| 
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|     return av_clip(c, mi, ma);
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| }
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| 
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| static int mode22(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     const int l1 = (a1 + a8 + 1) >> 1;
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|     const int l2 = (a2 + a7 + 1) >> 1;
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|     const int l3 = (a3 + a6 + 1) >> 1;
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|     const int l4 = (a4 + a5 + 1) >> 1;
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| 
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|     const int mi = FFMIN(FFMIN(l1, l2), FFMIN(l3, l4));
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|     const int ma = FFMAX(FFMAX(l1, l2), FFMAX(l3, l4));
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| 
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|     return av_clip(c, mi, ma);
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| }
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| 
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| static int mode23(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
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| {
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|     REMOVE_GRAIN_SORT_AXIS
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| 
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|     const int linediff1 = ma1 - mi1;
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|     const int linediff2 = ma2 - mi2;
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|     const int linediff3 = ma3 - mi3;
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|     const int linediff4 = ma4 - mi4;
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| 
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|     const int u1 = FFMIN(c - ma1, linediff1);
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|     const int u2 = FFMIN(c - ma2, linediff2);
 | |
|     const int u3 = FFMIN(c - ma3, linediff3);
 | |
|     const int u4 = FFMIN(c - ma4, linediff4);
 | |
|     const int u = FFMAX(FFMAX(FFMAX(u1, u2), FFMAX(u3, u4)), 0);
 | |
| 
 | |
|     const int d1 = FFMIN(mi1 - c, linediff1);
 | |
|     const int d2 = FFMIN(mi2 - c, linediff2);
 | |
|     const int d3 = FFMIN(mi3 - c, linediff3);
 | |
|     const int d4 = FFMIN(mi4 - c, linediff4);
 | |
|     const int d = FFMAX(FFMAX(FFMAX(d1, d2), FFMAX(d3, d4)), 0);
 | |
| 
 | |
|     return c - u + d;  // This probably will never overflow.
 | |
| }
 | |
| 
 | |
| static int mode24(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
 | |
| {
 | |
|     REMOVE_GRAIN_SORT_AXIS
 | |
| 
 | |
|     const int linediff1 = ma1 - mi1;
 | |
|     const int linediff2 = ma2 - mi2;
 | |
|     const int linediff3 = ma3 - mi3;
 | |
|     const int linediff4 = ma4 - mi4;
 | |
| 
 | |
|     const int tu1 = c - ma1;
 | |
|     const int tu2 = c - ma2;
 | |
|     const int tu3 = c - ma3;
 | |
|     const int tu4 = c - ma4;
 | |
| 
 | |
|     const int u1 = FFMIN(tu1, linediff1 - tu1);
 | |
|     const int u2 = FFMIN(tu2, linediff2 - tu2);
 | |
|     const int u3 = FFMIN(tu3, linediff3 - tu3);
 | |
|     const int u4 = FFMIN(tu4, linediff4 - tu4);
 | |
|     const int u = FFMAX(FFMAX(FFMAX(u1, u2), FFMAX(u3, u4)), 0);
 | |
| 
 | |
|     const int td1 = mi1 - c;
 | |
|     const int td2 = mi2 - c;
 | |
|     const int td3 = mi3 - c;
 | |
|     const int td4 = mi4 - c;
 | |
| 
 | |
|     const int d1 = FFMIN(td1, linediff1 - td1);
 | |
|     const int d2 = FFMIN(td2, linediff2 - td2);
 | |
|     const int d3 = FFMIN(td3, linediff3 - td3);
 | |
|     const int d4 = FFMIN(td4, linediff4 - td4);
 | |
|     const int d = FFMAX(FFMAX(FFMAX(d1, d2), FFMAX(d3, d4)), 0);
 | |
| 
 | |
|     return c - u + d;  // This probably will never overflow.
 | |
| }
 | |
| 
 | |
| static int config_input(AVFilterLink *inlink)
 | |
| {
 | |
|     RemoveGrainContext *s = inlink->dst->priv;
 | |
|     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
 | |
|     int i;
 | |
| 
 | |
|     s->nb_planes = av_pix_fmt_count_planes(inlink->format);
 | |
| 
 | |
|     s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
 | |
|     s->planeheight[0] = s->planeheight[3] = inlink->h;
 | |
|     s->planewidth[1]  = s->planewidth[2]  = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
 | |
|     s->planewidth[0]  = s->planewidth[3]  = inlink->w;
 | |
| 
 | |
|     for (i = 0; i < s->nb_planes; i++) {
 | |
|         switch (s->mode[i]) {
 | |
|         case 1:  s->rg[i] = mode01;   break;
 | |
|         case 2:  s->rg[i] = mode02;   break;
 | |
|         case 3:  s->rg[i] = mode03;   break;
 | |
|         case 4:  s->rg[i] = mode04;   break;
 | |
|         case 5:  s->rg[i] = mode05;   break;
 | |
|         case 6:  s->rg[i] = mode06;   break;
 | |
|         case 7:  s->rg[i] = mode07;   break;
 | |
|         case 8:  s->rg[i] = mode08;   break;
 | |
|         case 9:  s->rg[i] = mode09;   break;
 | |
|         case 10: s->rg[i] = mode10;   break;
 | |
|         case 11: s->rg[i] = mode1112; break;
 | |
|         case 12: s->rg[i] = mode1112; break;
 | |
|         case 13: s->skip_odd = 1;
 | |
|                  s->rg[i] = mode1314; break;
 | |
|         case 14: s->skip_even = 1;
 | |
|                  s->rg[i] = mode1314; break;
 | |
|         case 15: s->skip_odd = 1;
 | |
|                  s->rg[i] = mode1516; break;
 | |
|         case 16: s->skip_even = 1;
 | |
|                  s->rg[i] = mode1516; break;
 | |
|         case 17: s->rg[i] = mode17;   break;
 | |
|         case 18: s->rg[i] = mode18;   break;
 | |
|         case 19: s->rg[i] = mode19;   break;
 | |
|         case 20: s->rg[i] = mode20;   break;
 | |
|         case 21: s->rg[i] = mode21;   break;
 | |
|         case 22: s->rg[i] = mode22;   break;
 | |
|         case 23: s->rg[i] = mode23;   break;
 | |
|         case 24: s->rg[i] = mode24;   break;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if (ARCH_X86)
 | |
|         ff_removegrain_init_x86(s);
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| typedef struct ThreadData {
 | |
|     AVFrame *in, *out;
 | |
|     int plane;
 | |
| } ThreadData;
 | |
| 
 | |
| static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 | |
| {
 | |
|     RemoveGrainContext *s = ctx->priv;
 | |
|     ThreadData *td = arg;
 | |
|     AVFrame *in = td->in;
 | |
|     AVFrame *out = td->out;
 | |
|     const int i = td->plane;
 | |
|     const int height = s->planeheight[i];
 | |
|     const int om = in->linesize[i] - 1;
 | |
|     const int o0 = in->linesize[i]    ;
 | |
|     const int op = in->linesize[i] + 1;
 | |
|     int start = (height *  jobnr   ) / nb_jobs;
 | |
|     int end   = (height * (jobnr+1)) / nb_jobs;
 | |
|     int x, y;
 | |
| 
 | |
|     start = FFMAX(1, start);
 | |
|     end   = FFMIN(height-1, end);
 | |
|     for (y = start; y < end; y++) {
 | |
|         uint8_t *dst = out->data[i];
 | |
|         uint8_t *src = in->data[i];
 | |
| 
 | |
|         src = in->data[i] + y * in->linesize[i];
 | |
|         dst = out->data[i] + y * out->linesize[i];
 | |
| 
 | |
|         if (s->skip_even && !(y & 1)) {
 | |
|             memcpy(dst, src, s->planewidth[i]);
 | |
|             continue;
 | |
|         }
 | |
|         if (s->skip_odd && y & 1) {
 | |
|             memcpy(dst, src, s->planewidth[i]);
 | |
|             continue;
 | |
|         }
 | |
| 
 | |
|         *dst++ = *src++;
 | |
| 
 | |
|         if (s->fl[i]) {
 | |
|             int w_asm = (s->planewidth[i] - 2) & ~15;
 | |
| 
 | |
|             s->fl[i](dst, src, in->linesize[i], w_asm);
 | |
| 
 | |
|             x = 1 + w_asm;
 | |
|             dst += w_asm;
 | |
|             src += w_asm;
 | |
|         } else
 | |
|             x = 1;
 | |
| 
 | |
|         for (; x < s->planewidth[i] - 1; x++) {
 | |
|             const int a1 = src[-op];
 | |
|             const int a2 = src[-o0];
 | |
|             const int a3 = src[-om];
 | |
|             const int a4 = src[-1 ];
 | |
|             const int c  = src[ 0 ];
 | |
|             const int a5 = src[ 1 ];
 | |
|             const int a6 = src[ om];
 | |
|             const int a7 = src[ o0];
 | |
|             const int a8 = src[ op];
 | |
| 
 | |
|             const int res = s->rg[i](c, a1, a2, a3, a4, a5, a6, a7, a8);
 | |
| 
 | |
|             *dst = res;
 | |
|             dst++, src++;
 | |
|         }
 | |
|         dst[0] = src[0];
 | |
|     }
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int filter_frame(AVFilterLink *inlink, AVFrame *in)
 | |
| {
 | |
|     AVFilterContext *ctx = inlink->dst;
 | |
|     AVFilterLink *outlink = ctx->outputs[0];
 | |
|     RemoveGrainContext *s = ctx->priv;
 | |
|     ThreadData td;
 | |
|     AVFrame *out;
 | |
|     int i;
 | |
| 
 | |
|     out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
 | |
|     if (!out) {
 | |
|         av_frame_free(&in);
 | |
|         return AVERROR(ENOMEM);
 | |
|     }
 | |
|     av_frame_copy_props(out, in);
 | |
| 
 | |
|     for (i = 0; i < s->nb_planes; i++) {
 | |
|         uint8_t *dst = out->data[i];
 | |
|         uint8_t *src = in->data[i];
 | |
| 
 | |
|         if (s->mode[i] == 0) {
 | |
|             av_image_copy_plane(dst, out->linesize[i],
 | |
|                                 src, in->linesize[i],
 | |
|                                 s->planewidth[i], s->planeheight[i]);
 | |
|             continue;
 | |
|         }
 | |
| 
 | |
|         memcpy(dst, src, s->planewidth[i]);
 | |
| 
 | |
|         td.in = in; td.out = out; td.plane = i;
 | |
|         ff_filter_execute(ctx, filter_slice, &td, NULL,
 | |
|                           FFMIN(s->planeheight[i], ff_filter_get_nb_threads(ctx)));
 | |
| 
 | |
|         src = in->data[i] + (s->planeheight[i] - 1) * in->linesize[i];
 | |
|         dst = out->data[i] + (s->planeheight[i] - 1) * out->linesize[i];
 | |
|         memcpy(dst, src, s->planewidth[i]);
 | |
|     }
 | |
| 
 | |
|     av_frame_free(&in);
 | |
|     return ff_filter_frame(outlink, out);
 | |
| }
 | |
| 
 | |
| static const AVFilterPad removegrain_inputs[] = {
 | |
|     {
 | |
|         .name         = "default",
 | |
|         .type         = AVMEDIA_TYPE_VIDEO,
 | |
|         .filter_frame = filter_frame,
 | |
|         .config_props = config_input,
 | |
|     },
 | |
| };
 | |
| 
 | |
| static const AVFilterPad removegrain_outputs[] = {
 | |
|     {
 | |
|         .name = "default",
 | |
|         .type = AVMEDIA_TYPE_VIDEO,
 | |
|     },
 | |
| };
 | |
| 
 | |
| const AVFilter ff_vf_removegrain = {
 | |
|     .name          = "removegrain",
 | |
|     .description   = NULL_IF_CONFIG_SMALL("Remove grain."),
 | |
|     .priv_size     = sizeof(RemoveGrainContext),
 | |
|     FILTER_INPUTS(removegrain_inputs),
 | |
|     FILTER_OUTPUTS(removegrain_outputs),
 | |
|     FILTER_PIXFMTS_ARRAY(pix_fmts),
 | |
|     .priv_class    = &removegrain_class,
 | |
|     .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
 | |
| };
 | 
