2009-10-04 00:17:57 +02:00
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/*
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* Copyright (C) 2006 Michael Niedermayer <michaelni@gmx.at>
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*
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2011-12-21 09:02:09 +01:00
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* This file is part of FFmpeg.
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2009-10-04 00:17:57 +02:00
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*
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2011-12-21 09:02:09 +01:00
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* FFmpeg is free software; you can redistribute it and/or modify
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2009-10-04 00:17:57 +02:00
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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2011-12-21 09:02:09 +01:00
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* FFmpeg is distributed in the hope that it will be useful,
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2009-10-04 00:17:57 +02:00
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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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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2011-12-21 09:02:09 +01:00
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* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
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2009-10-04 00:17:57 +02:00
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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2011-12-21 09:02:09 +01:00
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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2009-10-04 00:17:57 +02:00
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2011-12-21 09:02:09 +01:00
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#if defined(__GNUC__)
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# define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v
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# if VLC_GCC_VERSION(3,1)
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# define DECLARE_ASM_CONST(n,t,v) static const t __attribute__((used)) __attribute__ ((aligned (n))) v
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# else
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# define DECLARE_ASM_CONST(n,t,v) static const t __attribute__ ((aligned (n))) v
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# endif
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#endif
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2009-10-04 00:17:57 +02:00
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2011-12-21 09:02:09 +01:00
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typedef intptr_t x86_reg;
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typedef struct { uint64_t a, b; } xmm_reg;
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DECLARE_ASM_CONST(16, const xmm_reg, pb_1) = {0x0101010101010101ULL, 0x0101010101010101ULL};
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DECLARE_ASM_CONST(16, const xmm_reg, pw_1) = {0x0001000100010001ULL, 0x0001000100010001ULL};
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#ifdef CAN_COMPILE_SSSE3
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#if defined(__SSE__) || VLC_GCC_VERSION(4, 4)
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// ================ SSSE3 =================
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#define HAVE_YADIF_SSSE3
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#define COMPILE_TEMPLATE_SSE 1
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#define COMPILE_TEMPLATE_SSSE3 1
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#define VLC_TARGET VLC_SSE
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#define RENAME(a) a ## _ssse3
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#include "yadif_template.h"
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#undef COMPILE_TEMPLATE_SSE
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#undef COMPILE_TEMPLATE_SSSE3
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#undef VLC_TARGET
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#undef RENAME
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#endif
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#endif
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2009-10-04 00:17:57 +02:00
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2011-12-21 09:02:09 +01:00
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#ifdef CAN_COMPILE_SSE2
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#if defined(__SSE__) || VLC_GCC_VERSION(4, 4)
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// ================= SSE2 =================
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#define HAVE_YADIF_SSE2
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#define COMPILE_TEMPLATE_SSE 1
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#define VLC_TARGET VLC_SSE
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#define RENAME(a) a ## _sse2
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#include "yadif_template.h"
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#undef COMPILE_TEMPLATE_SSE
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#undef VLC_TARGET
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#undef RENAME
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#endif
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#endif
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2009-10-04 00:17:57 +02:00
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2011-12-21 09:02:09 +01:00
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#ifdef CAN_COMPILE_MMX
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#if defined(__MMX__) || VLC_GCC_VERSION(4, 4)
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// ================ MMX =================
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#define HAVE_YADIF_MMX
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#define VLC_TARGET VLC_MMX
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#define RENAME(a) a ## _mmx
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#include "yadif_template.h"
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#undef VLC_TARGET
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#undef RENAME
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#endif
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2009-10-04 00:17:57 +02:00
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#endif
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2011-12-21 09:02:09 +01:00
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static void yadif_filter_line_c(uint8_t *dst, uint8_t *prev, uint8_t *cur, uint8_t *next, int w, int prefs, int mrefs, int parity, int mode) {
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2009-10-04 00:17:57 +02:00
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int x;
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uint8_t *prev2= parity ? prev : cur ;
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uint8_t *next2= parity ? cur : next;
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for(x=0; x<w; x++){
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2011-12-21 09:02:09 +01:00
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int c= cur[mrefs];
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2009-10-04 00:17:57 +02:00
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int d= (prev2[0] + next2[0])>>1;
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2011-12-21 09:02:09 +01:00
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int e= cur[prefs];
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2009-10-04 00:17:57 +02:00
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int temporal_diff0= FFABS(prev2[0] - next2[0]);
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2011-12-21 09:02:09 +01:00
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int temporal_diff1=( FFABS(prev[mrefs] - c) + FFABS(prev[prefs] - e) )>>1;
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int temporal_diff2=( FFABS(next[mrefs] - c) + FFABS(next[prefs] - e) )>>1;
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2009-10-04 00:17:57 +02:00
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int diff= FFMAX3(temporal_diff0>>1, temporal_diff1, temporal_diff2);
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int spatial_pred= (c+e)>>1;
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2011-12-21 09:02:09 +01:00
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int spatial_score= FFABS(cur[mrefs-1] - cur[prefs-1]) + FFABS(c-e)
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+ FFABS(cur[mrefs+1] - cur[prefs+1]) - 1;
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2009-10-04 00:17:57 +02:00
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#define CHECK(j)\
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{ int score= FFABS(cur[mrefs-1+j] - cur[prefs-1-j])\
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+ FFABS(cur[mrefs +j] - cur[prefs -j])\
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+ FFABS(cur[mrefs+1+j] - cur[prefs+1-j]);\
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2009-10-04 00:17:57 +02:00
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if(score < spatial_score){\
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spatial_score= score;\
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2011-12-21 09:02:09 +01:00
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spatial_pred= (cur[mrefs +j] + cur[prefs -j])>>1;\
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2009-10-04 00:17:57 +02:00
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CHECK(-1) CHECK(-2) }} }}
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CHECK( 1) CHECK( 2) }} }}
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2011-12-21 09:02:09 +01:00
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if(mode<2){
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int b= (prev2[2*mrefs] + next2[2*mrefs])>>1;
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int f= (prev2[2*prefs] + next2[2*prefs])>>1;
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2009-10-04 00:17:57 +02:00
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#if 0
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2011-12-21 09:02:09 +01:00
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int a= cur[3*mrefs];
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int g= cur[3*prefs];
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2009-10-04 00:17:57 +02:00
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int max= FFMAX3(d-e, d-c, FFMIN3(FFMAX(b-c,f-e),FFMAX(b-c,b-a),FFMAX(f-g,f-e)) );
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int min= FFMIN3(d-e, d-c, FFMAX3(FFMIN(b-c,f-e),FFMIN(b-c,b-a),FFMIN(f-g,f-e)) );
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#else
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int max= FFMAX3(d-e, d-c, FFMIN(b-c, f-e));
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int min= FFMIN3(d-e, d-c, FFMAX(b-c, f-e));
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#endif
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diff= FFMAX3(diff, min, -max);
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}
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if(spatial_pred > d + diff)
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spatial_pred = d + diff;
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else if(spatial_pred < d - diff)
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spatial_pred = d - diff;
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dst[0] = spatial_pred;
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dst++;
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cur++;
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prev++;
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next++;
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prev2++;
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next2++;
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}
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}
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