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2870 lines
99 KiB
2870 lines
99 KiB
/* |
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* Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This library 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 of the License, or (at your option) any later version. |
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* |
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* This library 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 this library; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#include "avcodec.h" |
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#include "common.h" |
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#include "dsputil.h" |
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#include "cabac.h" |
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#include "mpegvideo.h" |
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#undef NDEBUG |
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#include <assert.h> |
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#define MAX_DECOMPOSITIONS 8 |
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#define MAX_PLANES 4 |
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#define DWTELEM int |
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#define QROOT 8 |
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static const int8_t quant3[256]={ |
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0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, 0, |
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}; |
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static const int8_t quant3b[256]={ |
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0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
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}; |
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static const int8_t quant5[256]={ |
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0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, |
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-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, |
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-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, |
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-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, |
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-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, |
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-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, |
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-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, |
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-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1,-1, |
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}; |
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static const int8_t quant7[256]={ |
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0, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, |
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, |
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, |
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, |
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, |
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, |
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-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, |
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-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, |
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-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, |
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-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, |
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-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, |
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-3,-3,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-2,-2,-2,-2, |
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-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, |
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-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1, |
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}; |
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static const int8_t quant9[256]={ |
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0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, |
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3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
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-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, |
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-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, |
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-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, |
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-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, |
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-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, |
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-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, |
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-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3, |
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-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-2,-1,-1, |
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}; |
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static const int8_t quant11[256]={ |
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0, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, |
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
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4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
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-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
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-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
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-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
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-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
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-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
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-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-4,-4, |
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-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, |
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-4,-4,-4,-4,-4,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-1, |
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}; |
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static const int8_t quant13[256]={ |
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0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, |
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4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
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5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, |
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6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, |
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6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, |
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6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, |
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6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, |
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-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, |
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-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, |
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-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, |
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-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, |
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-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-5, |
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-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
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-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
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-4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3,-2,-2,-1, |
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}; |
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#define OBMC_MAX 64 |
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#if 0 //64*cubic |
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static const uint8_t obmc32[1024]={ |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, |
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0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, |
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0, 0, 1, 1, 2, 2, 3, 4, 4, 5, 6, 6, 7, 7, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 4, 3, 2, 2, 1, 1, 0, 0, |
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0, 0, 1, 2, 2, 3, 4, 6, 7, 8, 9,10,11,12,12,12,12,12,12,11,10, 9, 8, 7, 6, 4, 3, 2, 2, 1, 0, 0, |
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0, 1, 1, 2, 3, 5, 6, 8,10,11,13,14,15,16,17,18,18,17,16,15,14,13,11,10, 8, 6, 5, 3, 2, 1, 1, 0, |
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0, 1, 1, 3, 4, 6, 8,10,13,15,17,19,20,22,22,23,23,22,22,20,19,17,15,13,10, 8, 6, 4, 3, 1, 1, 0, |
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0, 1, 2, 4, 6, 8,10,13,16,19,21,23,25,27,28,29,29,28,27,25,23,21,19,16,13,10, 8, 6, 4, 2, 1, 0, |
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0, 1, 2, 4, 7,10,13,16,19,22,25,28,31,33,34,35,35,34,33,31,28,25,22,19,16,13,10, 7, 4, 2, 1, 0, |
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0, 1, 3, 5, 8,11,15,19,22,26,30,33,36,38,40,41,41,40,38,36,33,30,26,22,19,15,11, 8, 5, 3, 1, 0, |
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0, 1, 3, 6, 9,12,17,21,25,30,34,38,41,44,45,46,46,45,44,41,38,34,30,25,21,17,12, 9, 6, 3, 1, 0, |
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0, 1, 3, 6,10,14,19,23,28,33,38,42,45,48,51,52,52,51,48,45,42,38,33,28,23,19,14,10, 6, 3, 1, 0, |
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0, 1, 4, 7,11,15,20,25,31,36,41,45,49,52,55,56,56,55,52,49,45,41,36,31,25,20,15,11, 7, 4, 1, 0, |
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0, 2, 4, 7,12,16,22,27,33,38,44,48,52,56,58,60,60,58,56,52,48,44,38,33,27,22,16,12, 7, 4, 2, 0, |
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0, 1, 4, 8,12,17,22,28,34,40,45,51,55,58,61,62,62,61,58,55,51,45,40,34,28,22,17,12, 8, 4, 1, 0, |
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0, 2, 4, 8,12,18,23,29,35,41,46,52,56,60,62,64,64,62,60,56,52,46,41,35,29,23,18,12, 8, 4, 2, 0, |
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0, 2, 4, 8,12,18,23,29,35,41,46,52,56,60,62,64,64,62,60,56,52,46,41,35,29,23,18,12, 8, 4, 2, 0, |
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0, 1, 4, 8,12,17,22,28,34,40,45,51,55,58,61,62,62,61,58,55,51,45,40,34,28,22,17,12, 8, 4, 1, 0, |
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0, 2, 4, 7,12,16,22,27,33,38,44,48,52,56,58,60,60,58,56,52,48,44,38,33,27,22,16,12, 7, 4, 2, 0, |
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0, 1, 4, 7,11,15,20,25,31,36,41,45,49,52,55,56,56,55,52,49,45,41,36,31,25,20,15,11, 7, 4, 1, 0, |
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0, 1, 3, 6,10,14,19,23,28,33,38,42,45,48,51,52,52,51,48,45,42,38,33,28,23,19,14,10, 6, 3, 1, 0, |
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0, 1, 3, 6, 9,12,17,21,25,30,34,38,41,44,45,46,46,45,44,41,38,34,30,25,21,17,12, 9, 6, 3, 1, 0, |
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0, 1, 3, 5, 8,11,15,19,22,26,30,33,36,38,40,41,41,40,38,36,33,30,26,22,19,15,11, 8, 5, 3, 1, 0, |
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0, 1, 2, 4, 7,10,13,16,19,22,25,28,31,33,34,35,35,34,33,31,28,25,22,19,16,13,10, 7, 4, 2, 1, 0, |
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0, 1, 2, 4, 6, 8,10,13,16,19,21,23,25,27,28,29,29,28,27,25,23,21,19,16,13,10, 8, 6, 4, 2, 1, 0, |
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0, 1, 1, 3, 4, 6, 8,10,13,15,17,19,20,22,22,23,23,22,22,20,19,17,15,13,10, 8, 6, 4, 3, 1, 1, 0, |
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0, 1, 1, 2, 3, 5, 6, 8,10,11,13,14,15,16,17,18,18,17,16,15,14,13,11,10, 8, 6, 5, 3, 2, 1, 1, 0, |
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0, 0, 1, 2, 2, 3, 4, 6, 7, 8, 9,10,11,12,12,12,12,12,12,11,10, 9, 8, 7, 6, 4, 3, 2, 2, 1, 0, 0, |
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0, 0, 1, 1, 2, 2, 3, 4, 4, 5, 6, 6, 7, 7, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 4, 3, 2, 2, 1, 1, 0, 0, |
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0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, |
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0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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//error:0.000022 |
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}; |
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static const uint8_t obmc16[256]={ |
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0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, |
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0, 1, 1, 2, 4, 5, 5, 6, 6, 5, 5, 4, 2, 1, 1, 0, |
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0, 1, 4, 6, 9,11,13,15,15,13,11, 9, 6, 4, 1, 0, |
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0, 2, 6,11,15,20,24,26,26,24,20,15,11, 6, 2, 0, |
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0, 4, 9,15,23,29,34,38,38,34,29,23,15, 9, 4, 0, |
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0, 5,11,20,29,38,45,49,49,45,38,29,20,11, 5, 0, |
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1, 5,13,24,34,45,53,57,57,53,45,34,24,13, 5, 1, |
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1, 6,15,26,38,49,57,62,62,57,49,38,26,15, 6, 1, |
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1, 6,15,26,38,49,57,62,62,57,49,38,26,15, 6, 1, |
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1, 5,13,24,34,45,53,57,57,53,45,34,24,13, 5, 1, |
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0, 5,11,20,29,38,45,49,49,45,38,29,20,11, 5, 0, |
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0, 4, 9,15,23,29,34,38,38,34,29,23,15, 9, 4, 0, |
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0, 2, 6,11,15,20,24,26,26,24,20,15,11, 6, 2, 0, |
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0, 1, 4, 6, 9,11,13,15,15,13,11, 9, 6, 4, 1, 0, |
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0, 1, 1, 2, 4, 5, 5, 6, 6, 5, 5, 4, 2, 1, 1, 0, |
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0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, |
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//error:0.000033 |
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}; |
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#elif 1 // 64*linear |
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static const uint8_t obmc32[1024]={ |
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0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, |
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0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 0, |
|
0, 1, 2, 2, 3, 3, 4, 5, 5, 6, 7, 7, 8, 8, 9,10,10, 9, 8, 8, 7, 7, 6, 5, 5, 4, 3, 3, 2, 2, 1, 0, |
|
0, 1, 2, 3, 4, 5, 6, 7, 7, 8, 9,10,11,12,13,14,14,13,12,11,10, 9, 8, 7, 7, 6, 5, 4, 3, 2, 1, 0, |
|
1, 2, 3, 4, 5, 6, 7, 8,10,11,12,13,14,15,16,17,17,16,15,14,13,12,11,10, 8, 7, 6, 5, 4, 3, 2, 1, |
|
1, 2, 3, 5, 6, 8, 9,10,12,13,14,16,17,19,20,21,21,20,19,17,16,14,13,12,10, 9, 8, 6, 5, 3, 2, 1, |
|
1, 2, 4, 6, 7, 9,11,12,14,15,17,19,20,22,24,25,25,24,22,20,19,17,15,14,12,11, 9, 7, 6, 4, 2, 1, |
|
1, 3, 5, 7, 8,10,12,14,16,18,20,22,23,25,27,29,29,27,25,23,22,20,18,16,14,12,10, 8, 7, 5, 3, 1, |
|
1, 3, 5, 7,10,12,14,16,18,20,22,24,27,29,31,33,33,31,29,27,24,22,20,18,16,14,12,10, 7, 5, 3, 1, |
|
1, 4, 6, 8,11,13,15,18,20,23,25,27,30,32,34,37,37,34,32,30,27,25,23,20,18,15,13,11, 8, 6, 4, 1, |
|
1, 4, 7, 9,12,14,17,20,22,25,28,30,33,35,38,41,41,38,35,33,30,28,25,22,20,17,14,12, 9, 7, 4, 1, |
|
1, 4, 7,10,13,16,19,22,24,27,30,33,36,39,42,45,45,42,39,36,33,30,27,24,22,19,16,13,10, 7, 4, 1, |
|
2, 5, 8,11,14,17,20,23,27,30,33,36,39,42,45,48,48,45,42,39,36,33,30,27,23,20,17,14,11, 8, 5, 2, |
|
2, 5, 8,12,15,19,22,25,29,32,35,39,42,46,49,52,52,49,46,42,39,35,32,29,25,22,19,15,12, 8, 5, 2, |
|
2, 5, 9,13,16,20,24,27,31,34,38,42,45,49,53,56,56,53,49,45,42,38,34,31,27,24,20,16,13, 9, 5, 2, |
|
2, 6,10,14,17,21,25,29,33,37,41,45,48,52,56,60,60,56,52,48,45,41,37,33,29,25,21,17,14,10, 6, 2, |
|
2, 6,10,14,17,21,25,29,33,37,41,45,48,52,56,60,60,56,52,48,45,41,37,33,29,25,21,17,14,10, 6, 2, |
|
2, 5, 9,13,16,20,24,27,31,34,38,42,45,49,53,56,56,53,49,45,42,38,34,31,27,24,20,16,13, 9, 5, 2, |
|
2, 5, 8,12,15,19,22,25,29,32,35,39,42,46,49,52,52,49,46,42,39,35,32,29,25,22,19,15,12, 8, 5, 2, |
|
2, 5, 8,11,14,17,20,23,27,30,33,36,39,42,45,48,48,45,42,39,36,33,30,27,23,20,17,14,11, 8, 5, 2, |
|
1, 4, 7,10,13,16,19,22,24,27,30,33,36,39,42,45,45,42,39,36,33,30,27,24,22,19,16,13,10, 7, 4, 1, |
|
1, 4, 7, 9,12,14,17,20,22,25,28,30,33,35,38,41,41,38,35,33,30,28,25,22,20,17,14,12, 9, 7, 4, 1, |
|
1, 4, 6, 8,11,13,15,18,20,23,25,27,30,32,34,37,37,34,32,30,27,25,23,20,18,15,13,11, 8, 6, 4, 1, |
|
1, 3, 5, 7,10,12,14,16,18,20,22,24,27,29,31,33,33,31,29,27,24,22,20,18,16,14,12,10, 7, 5, 3, 1, |
|
1, 3, 5, 7, 8,10,12,14,16,18,20,22,23,25,27,29,29,27,25,23,22,20,18,16,14,12,10, 8, 7, 5, 3, 1, |
|
1, 2, 4, 6, 7, 9,11,12,14,15,17,19,20,22,24,25,25,24,22,20,19,17,15,14,12,11, 9, 7, 6, 4, 2, 1, |
|
1, 2, 3, 5, 6, 8, 9,10,12,13,14,16,17,19,20,21,21,20,19,17,16,14,13,12,10, 9, 8, 6, 5, 3, 2, 1, |
|
1, 2, 3, 4, 5, 6, 7, 8,10,11,12,13,14,15,16,17,17,16,15,14,13,12,11,10, 8, 7, 6, 5, 4, 3, 2, 1, |
|
0, 1, 2, 3, 4, 5, 6, 7, 7, 8, 9,10,11,12,13,14,14,13,12,11,10, 9, 8, 7, 7, 6, 5, 4, 3, 2, 1, 0, |
|
0, 1, 2, 2, 3, 3, 4, 5, 5, 6, 7, 7, 8, 8, 9,10,10, 9, 8, 8, 7, 7, 6, 5, 5, 4, 3, 3, 2, 2, 1, 0, |
|
0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 0, |
|
0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, |
|
//error:0.000020 |
|
}; |
|
static const uint8_t obmc16[256]={ |
|
0, 1, 1, 2, 2, 3, 3, 4, 4, 3, 3, 2, 2, 1, 1, 0, |
|
1, 2, 4, 5, 7, 8,10,11,11,10, 8, 7, 5, 4, 2, 1, |
|
1, 4, 6, 9,11,14,16,19,19,16,14,11, 9, 6, 4, 1, |
|
2, 5, 9,12,16,19,23,26,26,23,19,16,12, 9, 5, 2, |
|
2, 7,11,16,20,25,29,34,34,29,25,20,16,11, 7, 2, |
|
3, 8,14,19,25,30,36,41,41,36,30,25,19,14, 8, 3, |
|
3,10,16,23,29,36,42,49,49,42,36,29,23,16,10, 3, |
|
4,11,19,26,34,41,49,56,56,49,41,34,26,19,11, 4, |
|
4,11,19,26,34,41,49,56,56,49,41,34,26,19,11, 4, |
|
3,10,16,23,29,36,42,49,49,42,36,29,23,16,10, 3, |
|
3, 8,14,19,25,30,36,41,41,36,30,25,19,14, 8, 3, |
|
2, 7,11,16,20,25,29,34,34,29,25,20,16,11, 7, 2, |
|
2, 5, 9,12,16,19,23,26,26,23,19,16,12, 9, 5, 2, |
|
1, 4, 6, 9,11,14,16,19,19,16,14,11, 9, 6, 4, 1, |
|
1, 2, 4, 5, 7, 8,10,11,11,10, 8, 7, 5, 4, 2, 1, |
|
0, 1, 1, 2, 2, 3, 3, 4, 4, 3, 3, 2, 2, 1, 1, 0, |
|
//error:0.000015 |
|
}; |
|
#else //64*cos |
|
static const uint8_t obmc32[1024]={ |
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
|
0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, |
|
0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, |
|
0, 0, 1, 1, 1, 2, 2, 3, 4, 5, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 3, 2, 2, 1, 1, 1, 0, 0, |
|
0, 0, 1, 1, 2, 3, 4, 5, 6, 7, 9,10,11,11,12,12,12,12,11,11,10, 9, 7, 6, 5, 4, 3, 2, 1, 1, 0, 0, |
|
0, 0, 1, 2, 3, 5, 6, 8, 9,11,12,14,15,16,17,17,17,17,16,15,14,12,11, 9, 8, 6, 5, 3, 2, 1, 0, 0, |
|
0, 1, 1, 2, 4, 6, 8,10,12,15,17,19,20,21,22,23,23,22,21,20,19,17,15,12,10, 8, 6, 4, 2, 1, 1, 0, |
|
0, 1, 2, 3, 5, 8,10,13,16,19,21,24,26,27,28,29,29,28,27,26,24,21,19,16,13,10, 8, 5, 3, 2, 1, 0, |
|
0, 1, 2, 4, 6, 9,12,16,19,23,26,29,31,33,34,35,35,34,33,31,29,26,23,19,16,12, 9, 6, 4, 2, 1, 0, |
|
0, 1, 3, 5, 7,11,15,19,23,26,30,34,37,39,40,41,41,40,39,37,34,30,26,23,19,15,11, 7, 5, 3, 1, 0, |
|
0, 1, 3, 5, 9,12,17,21,26,30,35,38,42,44,46,47,47,46,44,42,38,35,30,26,21,17,12, 9, 5, 3, 1, 0, |
|
0, 1, 3, 6, 9,14,19,24,29,34,38,43,46,49,51,52,52,51,49,46,43,38,34,29,24,19,14, 9, 6, 3, 1, 0, |
|
0, 1, 3, 6,11,15,20,26,31,37,42,46,50,53,56,57,57,56,53,50,46,42,37,31,26,20,15,11, 6, 3, 1, 0, |
|
0, 1, 3, 7,11,16,21,27,33,39,44,49,53,57,59,60,60,59,57,53,49,44,39,33,27,21,16,11, 7, 3, 1, 0, |
|
0, 1, 4, 7,12,17,22,28,34,40,46,51,56,59,61,63,63,61,59,56,51,46,40,34,28,22,17,12, 7, 4, 1, 0, |
|
0, 1, 4, 7,12,17,23,29,35,41,47,52,57,60,63,64,64,63,60,57,52,47,41,35,29,23,17,12, 7, 4, 1, 0, |
|
0, 1, 4, 7,12,17,23,29,35,41,47,52,57,60,63,64,64,63,60,57,52,47,41,35,29,23,17,12, 7, 4, 1, 0, |
|
0, 1, 4, 7,12,17,22,28,34,40,46,51,56,59,61,63,63,61,59,56,51,46,40,34,28,22,17,12, 7, 4, 1, 0, |
|
0, 1, 3, 7,11,16,21,27,33,39,44,49,53,57,59,60,60,59,57,53,49,44,39,33,27,21,16,11, 7, 3, 1, 0, |
|
0, 1, 3, 6,11,15,20,26,31,37,42,46,50,53,56,57,57,56,53,50,46,42,37,31,26,20,15,11, 6, 3, 1, 0, |
|
0, 1, 3, 6, 9,14,19,24,29,34,38,43,46,49,51,52,52,51,49,46,43,38,34,29,24,19,14, 9, 6, 3, 1, 0, |
|
0, 1, 3, 5, 9,12,17,21,26,30,35,38,42,44,46,47,47,46,44,42,38,35,30,26,21,17,12, 9, 5, 3, 1, 0, |
|
0, 1, 3, 5, 7,11,15,19,23,26,30,34,37,39,40,41,41,40,39,37,34,30,26,23,19,15,11, 7, 5, 3, 1, 0, |
|
0, 1, 2, 4, 6, 9,12,16,19,23,26,29,31,33,34,35,35,34,33,31,29,26,23,19,16,12, 9, 6, 4, 2, 1, 0, |
|
0, 1, 2, 3, 5, 8,10,13,16,19,21,24,26,27,28,29,29,28,27,26,24,21,19,16,13,10, 8, 5, 3, 2, 1, 0, |
|
0, 1, 1, 2, 4, 6, 8,10,12,15,17,19,20,21,22,23,23,22,21,20,19,17,15,12,10, 8, 6, 4, 2, 1, 1, 0, |
|
0, 0, 1, 2, 3, 5, 6, 8, 9,11,12,14,15,16,17,17,17,17,16,15,14,12,11, 9, 8, 6, 5, 3, 2, 1, 0, 0, |
|
0, 0, 1, 1, 2, 3, 4, 5, 6, 7, 9,10,11,11,12,12,12,12,11,11,10, 9, 7, 6, 5, 4, 3, 2, 1, 1, 0, 0, |
|
0, 0, 1, 1, 1, 2, 2, 3, 4, 5, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 3, 2, 2, 1, 1, 1, 0, 0, |
|
0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, |
|
0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, |
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
|
//error:0.000022 |
|
}; |
|
static const uint8_t obmc16[256]={ |
|
0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, |
|
0, 0, 1, 2, 3, 4, 5, 5, 5, 5, 4, 3, 2, 1, 0, 0, |
|
0, 1, 3, 6, 8,11,13,14,14,13,11, 8, 6, 3, 1, 0, |
|
0, 2, 6,10,15,20,24,26,26,24,20,15,10, 6, 2, 0, |
|
0, 3, 8,16,23,30,35,38,38,35,30,23,16, 8, 3, 0, |
|
1, 4,11,20,30,39,46,49,49,46,39,30,20,11, 4, 1, |
|
1, 5,13,24,35,46,54,58,58,54,46,35,24,13, 5, 1, |
|
0, 5,14,26,38,49,58,63,63,58,49,38,26,14, 5, 0, |
|
0, 5,14,26,38,49,58,63,63,58,49,38,26,14, 5, 0, |
|
1, 5,13,24,35,46,54,58,58,54,46,35,24,13, 5, 1, |
|
1, 4,11,20,30,39,46,49,49,46,39,30,20,11, 4, 1, |
|
0, 3, 8,16,23,30,35,38,38,35,30,23,16, 8, 3, 0, |
|
0, 2, 6,10,15,20,24,26,26,24,20,15,10, 6, 2, 0, |
|
0, 1, 3, 6, 8,11,13,14,14,13,11, 8, 6, 3, 1, 0, |
|
0, 0, 1, 2, 3, 4, 5, 5, 5, 5, 4, 3, 2, 1, 0, 0, |
|
0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, |
|
//error:0.000022 |
|
}; |
|
#endif |
|
|
|
|
|
typedef struct SubBand{ |
|
int level; |
|
int stride; |
|
int width; |
|
int height; |
|
int qlog; ///< log(qscale)/log[2^(1/6)] |
|
DWTELEM *buf; |
|
struct SubBand *parent; |
|
uint8_t state[/*7*2*/ 7 + 512][32]; |
|
}SubBand; |
|
|
|
typedef struct Plane{ |
|
int width; |
|
int height; |
|
SubBand band[MAX_DECOMPOSITIONS][4]; |
|
}Plane; |
|
|
|
typedef struct SnowContext{ |
|
// MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to make the motion estimation eventually independant of MpegEncContext, so this will be removed then (FIXME/XXX) |
|
|
|
AVCodecContext *avctx; |
|
CABACContext c; |
|
DSPContext dsp; |
|
AVFrame input_picture; |
|
AVFrame current_picture; |
|
AVFrame last_picture; |
|
AVFrame mconly_picture; |
|
// uint8_t q_context[16]; |
|
uint8_t header_state[32]; |
|
int keyframe; |
|
int version; |
|
int spatial_decomposition_type; |
|
int temporal_decomposition_type; |
|
int spatial_decomposition_count; |
|
int temporal_decomposition_count; |
|
DWTELEM *spatial_dwt_buffer; |
|
DWTELEM *pred_buffer; |
|
int colorspace_type; |
|
int chroma_h_shift; |
|
int chroma_v_shift; |
|
int spatial_scalability; |
|
int qlog; |
|
int mv_scale; |
|
int qbias; |
|
#define QBIAS_SHIFT 3 |
|
int b_width; //FIXME remove? |
|
int b_height; //FIXME remove? |
|
Plane plane[MAX_PLANES]; |
|
SubBand mb_band; |
|
SubBand mv_band[2]; |
|
|
|
uint16_t *mb_type; |
|
uint8_t *mb_mean; |
|
uint32_t *dummy; |
|
int16_t (*motion_val8)[2]; |
|
int16_t (*motion_val16)[2]; |
|
MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to make the motion estimation eventually independant of MpegEncContext, so this will be removed then (FIXME/XXX) |
|
}SnowContext; |
|
|
|
#define QEXPSHIFT 7 //FIXME try to change this to 0 |
|
static const uint8_t qexp[8]={ |
|
128, 140, 152, 166, 181, 197, 215, 235 |
|
// 64, 70, 76, 83, 91, 99, 108, 117 |
|
// 32, 35, 38, 41, 45, 49, 54, 59 |
|
// 16, 17, 19, 21, 23, 25, 27, 29 |
|
// 8, 9, 10, 10, 11, 12, 13, 15 |
|
}; |
|
|
|
static inline int mirror(int v, int m){ |
|
if (v<0) return -v; |
|
else if(v>m) return 2*m-v; |
|
else return v; |
|
} |
|
|
|
static inline void put_symbol(CABACContext *c, uint8_t *state, int v, int is_signed){ |
|
int i; |
|
|
|
if(v){ |
|
const int a= ABS(v); |
|
const int e= av_log2(a); |
|
#if 1 |
|
const int el= FFMIN(e, 10); |
|
put_cabac(c, state+0, 0); |
|
|
|
for(i=0; i<el; i++){ |
|
put_cabac(c, state+1+i, 1); //1..10 |
|
} |
|
for(; i<e; i++){ |
|
put_cabac(c, state+1+9, 1); //1..10 |
|
} |
|
put_cabac(c, state+1+FFMIN(i,9), 0); |
|
|
|
for(i=e-1; i>=el; i--){ |
|
put_cabac(c, state+22+9, (a>>i)&1); //22..31 |
|
} |
|
for(; i>=0; i--){ |
|
put_cabac(c, state+22+i, (a>>i)&1); //22..31 |
|
} |
|
|
|
if(is_signed) |
|
put_cabac(c, state+11 + el, v < 0); //11..21 |
|
#else |
|
|
|
put_cabac(c, state+0, 0); |
|
if(e<=9){ |
|
for(i=0; i<e; i++){ |
|
put_cabac(c, state+1+i, 1); //1..10 |
|
} |
|
put_cabac(c, state+1+i, 0); |
|
|
|
for(i=e-1; i>=0; i--){ |
|
put_cabac(c, state+22+i, (a>>i)&1); //22..31 |
|
} |
|
|
|
if(is_signed) |
|
put_cabac(c, state+11 + e, v < 0); //11..21 |
|
}else{ |
|
for(i=0; i<e; i++){ |
|
put_cabac(c, state+1+FFMIN(i,9), 1); //1..10 |
|
} |
|
put_cabac(c, state+1+FFMIN(i,9), 0); |
|
|
|
for(i=e-1; i>=0; i--){ |
|
put_cabac(c, state+22+FFMIN(i,9), (a>>i)&1); //22..31 |
|
} |
|
|
|
if(is_signed) |
|
put_cabac(c, state+11 + FFMIN(e,10), v < 0); //11..21 |
|
} |
|
#endif |
|
}else{ |
|
put_cabac(c, state+0, 1); |
|
} |
|
} |
|
|
|
static inline int get_symbol(CABACContext *c, uint8_t *state, int is_signed){ |
|
if(get_cabac(c, state+0)) |
|
return 0; |
|
else{ |
|
int i, e, a, el; |
|
//FIXME try to merge loops with FFMIN() maybe they are equally fast and they are surly cuter |
|
for(e=0; e<10; e++){ |
|
if(get_cabac(c, state + 1 + e)==0) // 1..10 |
|
break; |
|
} |
|
el= e; |
|
|
|
if(e==10){ |
|
while(get_cabac(c, state + 1 + 9)) //10 |
|
e++; |
|
} |
|
a= 1; |
|
for(i=e-1; i>=el; i--){ |
|
a += a + get_cabac(c, state+22+9); //31 |
|
} |
|
for(; i>=0; i--){ |
|
a += a + get_cabac(c, state+22+i); //22..31 |
|
} |
|
|
|
if(is_signed && get_cabac(c, state+11 + el)) //11..21 |
|
return -a; |
|
else |
|
return a; |
|
} |
|
} |
|
|
|
static always_inline void lift(DWTELEM *dst, DWTELEM *src, DWTELEM *ref, int dst_step, int src_step, int ref_step, int width, int mul, int add, int shift, int highpass, int inverse){ |
|
const int mirror_left= !highpass; |
|
const int mirror_right= (width&1) ^ highpass; |
|
const int w= (width>>1) - 1 + (highpass & width); |
|
int i; |
|
|
|
#define LIFT(src, ref, inv) ((src) + ((inv) ? - (ref) : + (ref))) |
|
if(mirror_left){ |
|
dst[0] = LIFT(src[0], ((mul*2*ref[0]+add)>>shift), inverse); |
|
dst += dst_step; |
|
src += src_step; |
|
} |
|
|
|
for(i=0; i<w; i++){ |
|
dst[i*dst_step] = LIFT(src[i*src_step], ((mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add)>>shift), inverse); |
|
} |
|
|
|
if(mirror_right){ |
|
dst[w*dst_step] = LIFT(src[w*src_step], ((mul*2*ref[w*ref_step]+add)>>shift), inverse); |
|
} |
|
} |
|
|
|
static always_inline void lift5(DWTELEM *dst, DWTELEM *src, DWTELEM *ref, int dst_step, int src_step, int ref_step, int width, int mul, int add, int shift, int highpass, int inverse){ |
|
const int mirror_left= !highpass; |
|
const int mirror_right= (width&1) ^ highpass; |
|
const int w= (width>>1) - 1 + (highpass & width); |
|
int i; |
|
|
|
if(mirror_left){ |
|
int r= 3*2*ref[0]; |
|
r += r>>4; |
|
r += r>>8; |
|
dst[0] = LIFT(src[0], ((r+add)>>shift), inverse); |
|
dst += dst_step; |
|
src += src_step; |
|
} |
|
|
|
for(i=0; i<w; i++){ |
|
int r= 3*(ref[i*ref_step] + ref[(i+1)*ref_step]); |
|
r += r>>4; |
|
r += r>>8; |
|
dst[i*dst_step] = LIFT(src[i*src_step], ((r+add)>>shift), inverse); |
|
} |
|
|
|
if(mirror_right){ |
|
int r= 3*2*ref[w*ref_step]; |
|
r += r>>4; |
|
r += r>>8; |
|
dst[w*dst_step] = LIFT(src[w*src_step], ((r+add)>>shift), inverse); |
|
} |
|
} |
|
|
|
|
|
static void inplace_lift(int *dst, int width, int *coeffs, int n, int shift, int start, int inverse){ |
|
int x, i; |
|
|
|
for(x=start; x<width; x+=2){ |
|
int64_t sum=0; |
|
|
|
for(i=0; i<n; i++){ |
|
int x2= x + 2*i - n + 1; |
|
if (x2< 0) x2= -x2; |
|
else if(x2>=width) x2= 2*width-x2-2; |
|
sum += coeffs[i]*(int64_t)dst[x2]; |
|
} |
|
if(inverse) dst[x] -= (sum + (1<<shift)/2)>>shift; |
|
else dst[x] += (sum + (1<<shift)/2)>>shift; |
|
} |
|
} |
|
|
|
static void inplace_liftV(int *dst, int width, int height, int stride, int *coeffs, int n, int shift, int start, int inverse){ |
|
int x, y, i; |
|
for(y=start; y<height; y+=2){ |
|
for(x=0; x<width; x++){ |
|
int64_t sum=0; |
|
|
|
for(i=0; i<n; i++){ |
|
int y2= y + 2*i - n + 1; |
|
if (y2< 0) y2= -y2; |
|
else if(y2>=height) y2= 2*height-y2-2; |
|
sum += coeffs[i]*(int64_t)dst[x + y2*stride]; |
|
} |
|
if(inverse) dst[x + y*stride] -= (sum + (1<<shift)/2)>>shift; |
|
else dst[x + y*stride] += (sum + (1<<shift)/2)>>shift; |
|
} |
|
} |
|
} |
|
|
|
#define SCALEX 1 |
|
#define LX0 0 |
|
#define LX1 1 |
|
|
|
#if 0 // more accurate 9/7 |
|
#define N1 2 |
|
#define SHIFT1 14 |
|
#define COEFFS1 (int[]){-25987,-25987} |
|
#define N2 2 |
|
#define SHIFT2 19 |
|
#define COEFFS2 (int[]){-27777,-27777} |
|
#define N3 2 |
|
#define SHIFT3 15 |
|
#define COEFFS3 (int[]){28931,28931} |
|
#define N4 2 |
|
#define SHIFT4 15 |
|
#define COEFFS4 (int[]){14533,14533} |
|
#elif 1 // 13/7 CRF |
|
#define N1 4 |
|
#define SHIFT1 4 |
|
#define COEFFS1 (int[]){1,-9,-9,1} |
|
#define N2 4 |
|
#define SHIFT2 4 |
|
#define COEFFS2 (int[]){-1,5,5,-1} |
|
#define N3 0 |
|
#define SHIFT3 1 |
|
#define COEFFS3 NULL |
|
#define N4 0 |
|
#define SHIFT4 1 |
|
#define COEFFS4 NULL |
|
#elif 1 // 3/5 |
|
#define LX0 1 |
|
#define LX1 0 |
|
#define SCALEX 0.5 |
|
#define N1 2 |
|
#define SHIFT1 1 |
|
#define COEFFS1 (int[]){1,1} |
|
#define N2 2 |
|
#define SHIFT2 2 |
|
#define COEFFS2 (int[]){-1,-1} |
|
#define N3 0 |
|
#define SHIFT3 0 |
|
#define COEFFS3 NULL |
|
#define N4 0 |
|
#define SHIFT4 0 |
|
#define COEFFS4 NULL |
|
#elif 1 // 11/5 |
|
#define N1 0 |
|
#define SHIFT1 1 |
|
#define COEFFS1 NULL |
|
#define N2 2 |
|
#define SHIFT2 2 |
|
#define COEFFS2 (int[]){-1,-1} |
|
#define N3 2 |
|
#define SHIFT3 0 |
|
#define COEFFS3 (int[]){-1,-1} |
|
#define N4 4 |
|
#define SHIFT4 7 |
|
#define COEFFS4 (int[]){-5,29,29,-5} |
|
#define SCALEX 4 |
|
#elif 1 // 9/7 CDF |
|
#define N1 2 |
|
#define SHIFT1 7 |
|
#define COEFFS1 (int[]){-203,-203} |
|
#define N2 2 |
|
#define SHIFT2 12 |
|
#define COEFFS2 (int[]){-217,-217} |
|
#define N3 2 |
|
#define SHIFT3 7 |
|
#define COEFFS3 (int[]){113,113} |
|
#define N4 2 |
|
#define SHIFT4 9 |
|
#define COEFFS4 (int[]){227,227} |
|
#define SCALEX 1 |
|
#elif 1 // 7/5 CDF |
|
#define N1 0 |
|
#define SHIFT1 1 |
|
#define COEFFS1 NULL |
|
#define N2 2 |
|
#define SHIFT2 2 |
|
#define COEFFS2 (int[]){-1,-1} |
|
#define N3 2 |
|
#define SHIFT3 0 |
|
#define COEFFS3 (int[]){-1,-1} |
|
#define N4 2 |
|
#define SHIFT4 4 |
|
#define COEFFS4 (int[]){3,3} |
|
#elif 1 // 9/7 MN |
|
#define N1 4 |
|
#define SHIFT1 4 |
|
#define COEFFS1 (int[]){1,-9,-9,1} |
|
#define N2 2 |
|
#define SHIFT2 2 |
|
#define COEFFS2 (int[]){1,1} |
|
#define N3 0 |
|
#define SHIFT3 1 |
|
#define COEFFS3 NULL |
|
#define N4 0 |
|
#define SHIFT4 1 |
|
#define COEFFS4 NULL |
|
#else // 13/7 CRF |
|
#define N1 4 |
|
#define SHIFT1 4 |
|
#define COEFFS1 (int[]){1,-9,-9,1} |
|
#define N2 4 |
|
#define SHIFT2 4 |
|
#define COEFFS2 (int[]){-1,5,5,-1} |
|
#define N3 0 |
|
#define SHIFT3 1 |
|
#define COEFFS3 NULL |
|
#define N4 0 |
|
#define SHIFT4 1 |
|
#define COEFFS4 NULL |
|
#endif |
|
static void horizontal_decomposeX(int *b, int width){ |
|
int temp[width]; |
|
const int width2= width>>1; |
|
const int w2= (width+1)>>1; |
|
int A1,A2,A3,A4, x; |
|
|
|
inplace_lift(b, width, COEFFS1, N1, SHIFT1, LX1, 0); |
|
inplace_lift(b, width, COEFFS2, N2, SHIFT2, LX0, 0); |
|
inplace_lift(b, width, COEFFS3, N3, SHIFT3, LX1, 0); |
|
inplace_lift(b, width, COEFFS4, N4, SHIFT4, LX0, 0); |
|
|
|
for(x=0; x<width2; x++){ |
|
temp[x ]= b[2*x ]; |
|
temp[x+w2]= b[2*x + 1]; |
|
} |
|
if(width&1) |
|
temp[x ]= b[2*x ]; |
|
memcpy(b, temp, width*sizeof(int)); |
|
} |
|
|
|
static void horizontal_composeX(int *b, int width){ |
|
int temp[width]; |
|
const int width2= width>>1; |
|
int A1,A2,A3,A4, x; |
|
const int w2= (width+1)>>1; |
|
|
|
memcpy(temp, b, width*sizeof(int)); |
|
for(x=0; x<width2; x++){ |
|
b[2*x ]= temp[x ]; |
|
b[2*x + 1]= temp[x+w2]; |
|
} |
|
if(width&1) |
|
b[2*x ]= temp[x ]; |
|
|
|
inplace_lift(b, width, COEFFS4, N4, SHIFT4, LX0, 1); |
|
inplace_lift(b, width, COEFFS3, N3, SHIFT3, LX1, 1); |
|
inplace_lift(b, width, COEFFS2, N2, SHIFT2, LX0, 1); |
|
inplace_lift(b, width, COEFFS1, N1, SHIFT1, LX1, 1); |
|
} |
|
|
|
static void spatial_decomposeX(int *buffer, int width, int height, int stride){ |
|
int x, y; |
|
|
|
for(y=0; y<height; y++){ |
|
for(x=0; x<width; x++){ |
|
buffer[y*stride + x] *= SCALEX; |
|
} |
|
} |
|
|
|
for(y=0; y<height; y++){ |
|
horizontal_decomposeX(buffer + y*stride, width); |
|
} |
|
|
|
inplace_liftV(buffer, width, height, stride, COEFFS1, N1, SHIFT1, LX1, 0); |
|
inplace_liftV(buffer, width, height, stride, COEFFS2, N2, SHIFT2, LX0, 0); |
|
inplace_liftV(buffer, width, height, stride, COEFFS3, N3, SHIFT3, LX1, 0); |
|
inplace_liftV(buffer, width, height, stride, COEFFS4, N4, SHIFT4, LX0, 0); |
|
} |
|
|
|
static void spatial_composeX(int *buffer, int width, int height, int stride){ |
|
int x, y; |
|
|
|
inplace_liftV(buffer, width, height, stride, COEFFS4, N4, SHIFT4, LX0, 1); |
|
inplace_liftV(buffer, width, height, stride, COEFFS3, N3, SHIFT3, LX1, 1); |
|
inplace_liftV(buffer, width, height, stride, COEFFS2, N2, SHIFT2, LX0, 1); |
|
inplace_liftV(buffer, width, height, stride, COEFFS1, N1, SHIFT1, LX1, 1); |
|
|
|
for(y=0; y<height; y++){ |
|
horizontal_composeX(buffer + y*stride, width); |
|
} |
|
|
|
for(y=0; y<height; y++){ |
|
for(x=0; x<width; x++){ |
|
buffer[y*stride + x] /= SCALEX; |
|
} |
|
} |
|
} |
|
|
|
static void horizontal_decompose53i(int *b, int width){ |
|
int temp[width]; |
|
const int width2= width>>1; |
|
int A1,A2,A3,A4, x; |
|
const int w2= (width+1)>>1; |
|
|
|
for(x=0; x<width2; x++){ |
|
temp[x ]= b[2*x ]; |
|
temp[x+w2]= b[2*x + 1]; |
|
} |
|
if(width&1) |
|
temp[x ]= b[2*x ]; |
|
#if 0 |
|
A2= temp[1 ]; |
|
A4= temp[0 ]; |
|
A1= temp[0+width2]; |
|
A1 -= (A2 + A4)>>1; |
|
A4 += (A1 + 1)>>1; |
|
b[0+width2] = A1; |
|
b[0 ] = A4; |
|
for(x=1; x+1<width2; x+=2){ |
|
A3= temp[x+width2]; |
|
A4= temp[x+1 ]; |
|
A3 -= (A2 + A4)>>1; |
|
A2 += (A1 + A3 + 2)>>2; |
|
b[x+width2] = A3; |
|
b[x ] = A2; |
|
|
|
A1= temp[x+1+width2]; |
|
A2= temp[x+2 ]; |
|
A1 -= (A2 + A4)>>1; |
|
A4 += (A1 + A3 + 2)>>2; |
|
b[x+1+width2] = A1; |
|
b[x+1 ] = A4; |
|
} |
|
A3= temp[width-1]; |
|
A3 -= A2; |
|
A2 += (A1 + A3 + 2)>>2; |
|
b[width -1] = A3; |
|
b[width2-1] = A2; |
|
#else |
|
lift(b+w2, temp+w2, temp, 1, 1, 1, width, -1, 0, 1, 1, 0); |
|
lift(b , temp , b+w2, 1, 1, 1, width, 1, 2, 2, 0, 0); |
|
#endif |
|
} |
|
|
|
static void vertical_decompose53iH0(int *b0, int *b1, int *b2, int width){ |
|
int i; |
|
|
|
for(i=0; i<width; i++){ |
|
b1[i] -= (b0[i] + b2[i])>>1; |
|
} |
|
} |
|
|
|
static void vertical_decompose53iL0(int *b0, int *b1, int *b2, int width){ |
|
int i; |
|
|
|
for(i=0; i<width; i++){ |
|
b1[i] += (b0[i] + b2[i] + 2)>>2; |
|
} |
|
} |
|
|
|
static void spatial_decompose53i(int *buffer, int width, int height, int stride){ |
|
int x, y; |
|
DWTELEM *b0= buffer + mirror(-2-1, height-1)*stride; |
|
DWTELEM *b1= buffer + mirror(-2 , height-1)*stride; |
|
|
|
for(y=-2; y<height; y+=2){ |
|
DWTELEM *b2= buffer + mirror(y+1, height-1)*stride; |
|
DWTELEM *b3= buffer + mirror(y+2, height-1)*stride; |
|
|
|
{START_TIMER |
|
if(b1 <= b3) horizontal_decompose53i(b2, width); |
|
if(y+2 < height) horizontal_decompose53i(b3, width); |
|
STOP_TIMER("horizontal_decompose53i")} |
|
|
|
{START_TIMER |
|
if(b1 <= b3) vertical_decompose53iH0(b1, b2, b3, width); |
|
if(b0 <= b2) vertical_decompose53iL0(b0, b1, b2, width); |
|
STOP_TIMER("vertical_decompose53i*")} |
|
|
|
b0=b2; |
|
b1=b3; |
|
} |
|
} |
|
|
|
#define lift5 lift |
|
#if 1 |
|
#define W_AM 3 |
|
#define W_AO 0 |
|
#define W_AS 1 |
|
|
|
#define W_BM 1 |
|
#define W_BO 8 |
|
#define W_BS 4 |
|
|
|
#undef lift5 |
|
#define W_CM 9999 |
|
#define W_CO 2 |
|
#define W_CS 2 |
|
|
|
#define W_DM 15 |
|
#define W_DO 16 |
|
#define W_DS 5 |
|
#elif 0 |
|
#define W_AM 55 |
|
#define W_AO 16 |
|
#define W_AS 5 |
|
|
|
#define W_BM 3 |
|
#define W_BO 32 |
|
#define W_BS 6 |
|
|
|
#define W_CM 127 |
|
#define W_CO 64 |
|
#define W_CS 7 |
|
|
|
#define W_DM 7 |
|
#define W_DO 8 |
|
#define W_DS 4 |
|
#elif 0 |
|
#define W_AM 97 |
|
#define W_AO 32 |
|
#define W_AS 6 |
|
|
|
#define W_BM 63 |
|
#define W_BO 512 |
|
#define W_BS 10 |
|
|
|
#define W_CM 13 |
|
#define W_CO 8 |
|
#define W_CS 4 |
|
|
|
#define W_DM 15 |
|
#define W_DO 16 |
|
#define W_DS 5 |
|
|
|
#else |
|
|
|
#define W_AM 203 |
|
#define W_AO 64 |
|
#define W_AS 7 |
|
|
|
#define W_BM 217 |
|
#define W_BO 2048 |
|
#define W_BS 12 |
|
|
|
#define W_CM 113 |
|
#define W_CO 64 |
|
#define W_CS 7 |
|
|
|
#define W_DM 227 |
|
#define W_DO 128 |
|
#define W_DS 9 |
|
#endif |
|
static void horizontal_decompose97i(int *b, int width){ |
|
int temp[width]; |
|
const int w2= (width+1)>>1; |
|
|
|
lift (temp+w2, b +1, b , 1, 2, 2, width, -W_AM, W_AO, W_AS, 1, 0); |
|
lift (temp , b , temp+w2, 1, 2, 1, width, -W_BM, W_BO, W_BS, 0, 0); |
|
lift5(b +w2, temp+w2, temp , 1, 1, 1, width, W_CM, W_CO, W_CS, 1, 0); |
|
lift (b , temp , b +w2, 1, 1, 1, width, W_DM, W_DO, W_DS, 0, 0); |
|
} |
|
|
|
|
|
static void vertical_decompose97iH0(int *b0, int *b1, int *b2, int width){ |
|
int i; |
|
|
|
for(i=0; i<width; i++){ |
|
b1[i] -= (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS; |
|
} |
|
} |
|
|
|
static void vertical_decompose97iH1(int *b0, int *b1, int *b2, int width){ |
|
int i; |
|
|
|
for(i=0; i<width; i++){ |
|
#ifdef lift5 |
|
b1[i] += (W_CM*(b0[i] + b2[i])+W_CO)>>W_CS; |
|
#else |
|
int r= 3*(b0[i] + b2[i]); |
|
r+= r>>4; |
|
r+= r>>8; |
|
b1[i] += (r+W_CO)>>W_CS; |
|
#endif |
|
} |
|
} |
|
|
|
static void vertical_decompose97iL0(int *b0, int *b1, int *b2, int width){ |
|
int i; |
|
|
|
for(i=0; i<width; i++){ |
|
b1[i] -= (W_BM*(b0[i] + b2[i])+W_BO)>>W_BS; |
|
} |
|
} |
|
|
|
static void vertical_decompose97iL1(int *b0, int *b1, int *b2, int width){ |
|
int i; |
|
|
|
for(i=0; i<width; i++){ |
|
b1[i] += (W_DM*(b0[i] + b2[i])+W_DO)>>W_DS; |
|
} |
|
} |
|
|
|
static void spatial_decompose97i(int *buffer, int width, int height, int stride){ |
|
int x, y; |
|
DWTELEM *b0= buffer + mirror(-4-1, height-1)*stride; |
|
DWTELEM *b1= buffer + mirror(-4 , height-1)*stride; |
|
DWTELEM *b2= buffer + mirror(-4+1, height-1)*stride; |
|
DWTELEM *b3= buffer + mirror(-4+2, height-1)*stride; |
|
|
|
for(y=-4; y<height; y+=2){ |
|
DWTELEM *b4= buffer + mirror(y+3, height-1)*stride; |
|
DWTELEM *b5= buffer + mirror(y+4, height-1)*stride; |
|
|
|
{START_TIMER |
|
if(b3 <= b5) horizontal_decompose97i(b4, width); |
|
if(y+4 < height) horizontal_decompose97i(b5, width); |
|
if(width>400){ |
|
STOP_TIMER("horizontal_decompose97i") |
|
}} |
|
|
|
{START_TIMER |
|
if(b3 <= b5) vertical_decompose97iH0(b3, b4, b5, width); |
|
if(b2 <= b4) vertical_decompose97iL0(b2, b3, b4, width); |
|
if(b1 <= b3) vertical_decompose97iH1(b1, b2, b3, width); |
|
if(b0 <= b2) vertical_decompose97iL1(b0, b1, b2, width); |
|
|
|
if(width>400){ |
|
STOP_TIMER("vertical_decompose97i") |
|
}} |
|
|
|
b0=b2; |
|
b1=b3; |
|
b2=b4; |
|
b3=b5; |
|
} |
|
} |
|
|
|
static void spatial_dwt(SnowContext *s, int *buffer, int width, int height, int stride){ |
|
int level; |
|
|
|
for(level=0; level<s->spatial_decomposition_count; level++){ |
|
switch(s->spatial_decomposition_type){ |
|
case 0: spatial_decompose97i(buffer, width>>level, height>>level, stride<<level); break; |
|
case 1: spatial_decompose53i(buffer, width>>level, height>>level, stride<<level); break; |
|
case 2: spatial_decomposeX (buffer, width>>level, height>>level, stride<<level); break; |
|
} |
|
} |
|
} |
|
|
|
static void horizontal_compose53i(int *b, int width){ |
|
int temp[width]; |
|
const int width2= width>>1; |
|
const int w2= (width+1)>>1; |
|
int A1,A2,A3,A4, x; |
|
|
|
#if 0 |
|
A2= temp[1 ]; |
|
A4= temp[0 ]; |
|
A1= temp[0+width2]; |
|
A1 -= (A2 + A4)>>1; |
|
A4 += (A1 + 1)>>1; |
|
b[0+width2] = A1; |
|
b[0 ] = A4; |
|
for(x=1; x+1<width2; x+=2){ |
|
A3= temp[x+width2]; |
|
A4= temp[x+1 ]; |
|
A3 -= (A2 + A4)>>1; |
|
A2 += (A1 + A3 + 2)>>2; |
|
b[x+width2] = A3; |
|
b[x ] = A2; |
|
|
|
A1= temp[x+1+width2]; |
|
A2= temp[x+2 ]; |
|
A1 -= (A2 + A4)>>1; |
|
A4 += (A1 + A3 + 2)>>2; |
|
b[x+1+width2] = A1; |
|
b[x+1 ] = A4; |
|
} |
|
A3= temp[width-1]; |
|
A3 -= A2; |
|
A2 += (A1 + A3 + 2)>>2; |
|
b[width -1] = A3; |
|
b[width2-1] = A2; |
|
#else |
|
lift(temp , b , b+w2, 1, 1, 1, width, 1, 2, 2, 0, 1); |
|
lift(temp+w2, b+w2, temp, 1, 1, 1, width, -1, 0, 1, 1, 1); |
|
#endif |
|
for(x=0; x<width2; x++){ |
|
b[2*x ]= temp[x ]; |
|
b[2*x + 1]= temp[x+w2]; |
|
} |
|
if(width&1) |
|
b[2*x ]= temp[x ]; |
|
} |
|
|
|
static void vertical_compose53iH0(int *b0, int *b1, int *b2, int width){ |
|
int i; |
|
|
|
for(i=0; i<width; i++){ |
|
b1[i] += (b0[i] + b2[i])>>1; |
|
} |
|
} |
|
|
|
static void vertical_compose53iL0(int *b0, int *b1, int *b2, int width){ |
|
int i; |
|
|
|
for(i=0; i<width; i++){ |
|
b1[i] -= (b0[i] + b2[i] + 2)>>2; |
|
} |
|
} |
|
|
|
static void spatial_compose53i(int *buffer, int width, int height, int stride){ |
|
int x, y; |
|
DWTELEM *b0= buffer + mirror(-1-1, height-1)*stride; |
|
DWTELEM *b1= buffer + mirror(-1 , height-1)*stride; |
|
|
|
for(y=-1; y<=height; y+=2){ |
|
DWTELEM *b2= buffer + mirror(y+1, height-1)*stride; |
|
DWTELEM *b3= buffer + mirror(y+2, height-1)*stride; |
|
|
|
{START_TIMER |
|
if(b1 <= b3) vertical_compose53iL0(b1, b2, b3, width); |
|
if(b0 <= b2) vertical_compose53iH0(b0, b1, b2, width); |
|
STOP_TIMER("vertical_compose53i*")} |
|
|
|
{START_TIMER |
|
if(y-1 >= 0) horizontal_compose53i(b0, width); |
|
if(b0 <= b2) horizontal_compose53i(b1, width); |
|
STOP_TIMER("horizontal_compose53i")} |
|
|
|
b0=b2; |
|
b1=b3; |
|
} |
|
} |
|
|
|
|
|
static void horizontal_compose97i(int *b, int width){ |
|
int temp[width]; |
|
const int w2= (width+1)>>1; |
|
|
|
lift (temp , b , b +w2, 1, 1, 1, width, W_DM, W_DO, W_DS, 0, 1); |
|
lift5(temp+w2, b +w2, temp , 1, 1, 1, width, W_CM, W_CO, W_CS, 1, 1); |
|
lift (b , temp , temp+w2, 2, 1, 1, width, -W_BM, W_BO, W_BS, 0, 1); |
|
lift (b+1 , temp+w2, b , 2, 1, 2, width, -W_AM, W_AO, W_AS, 1, 1); |
|
} |
|
|
|
static void vertical_compose97iH0(int *b0, int *b1, int *b2, int width){ |
|
int i; |
|
|
|
for(i=0; i<width; i++){ |
|
b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS; |
|
} |
|
} |
|
|
|
static void vertical_compose97iH1(int *b0, int *b1, int *b2, int width){ |
|
int i; |
|
|
|
for(i=0; i<width; i++){ |
|
#ifdef lift5 |
|
b1[i] -= (W_CM*(b0[i] + b2[i])+W_CO)>>W_CS; |
|
#else |
|
int r= 3*(b0[i] + b2[i]); |
|
r+= r>>4; |
|
r+= r>>8; |
|
b1[i] -= (r+W_CO)>>W_CS; |
|
#endif |
|
} |
|
} |
|
|
|
static void vertical_compose97iL0(int *b0, int *b1, int *b2, int width){ |
|
int i; |
|
|
|
for(i=0; i<width; i++){ |
|
b1[i] += (W_BM*(b0[i] + b2[i])+W_BO)>>W_BS; |
|
} |
|
} |
|
|
|
static void vertical_compose97iL1(int *b0, int *b1, int *b2, int width){ |
|
int i; |
|
|
|
for(i=0; i<width; i++){ |
|
b1[i] -= (W_DM*(b0[i] + b2[i])+W_DO)>>W_DS; |
|
} |
|
} |
|
|
|
static void spatial_compose97i(int *buffer, int width, int height, int stride){ |
|
int x, y; |
|
DWTELEM *b0= buffer + mirror(-3-1, height-1)*stride; |
|
DWTELEM *b1= buffer + mirror(-3 , height-1)*stride; |
|
DWTELEM *b2= buffer + mirror(-3+1, height-1)*stride; |
|
DWTELEM *b3= buffer + mirror(-3+2, height-1)*stride; |
|
|
|
for(y=-3; y<=height; y+=2){ |
|
DWTELEM *b4= buffer + mirror(y+3, height-1)*stride; |
|
DWTELEM *b5= buffer + mirror(y+4, height-1)*stride; |
|
|
|
if(stride == width && y+4 < height && 0){ |
|
int x; |
|
for(x=0; x<width/2; x++) |
|
b5[x] += 64*2; |
|
for(; x<width; x++) |
|
b5[x] += 169*2; |
|
} |
|
|
|
{START_TIMER |
|
if(b3 <= b5) vertical_compose97iL1(b3, b4, b5, width); |
|
if(b2 <= b4) vertical_compose97iH1(b2, b3, b4, width); |
|
if(b1 <= b3) vertical_compose97iL0(b1, b2, b3, width); |
|
if(b0 <= b2) vertical_compose97iH0(b0, b1, b2, width); |
|
if(width>400){ |
|
STOP_TIMER("vertical_compose97i")}} |
|
|
|
{START_TIMER |
|
if(y-1>= 0) horizontal_compose97i(b0, width); |
|
if(b0 <= b2) horizontal_compose97i(b1, width); |
|
if(width>400 && b0 <= b2){ |
|
STOP_TIMER("horizontal_compose97i")}} |
|
|
|
b0=b2; |
|
b1=b3; |
|
b2=b4; |
|
b3=b5; |
|
} |
|
} |
|
|
|
static void spatial_idwt(SnowContext *s, int *buffer, int width, int height, int stride){ |
|
int level; |
|
|
|
for(level=s->spatial_decomposition_count-1; level>=0; level--){ |
|
switch(s->spatial_decomposition_type){ |
|
case 0: spatial_compose97i(buffer, width>>level, height>>level, stride<<level); break; |
|
case 1: spatial_compose53i(buffer, width>>level, height>>level, stride<<level); break; |
|
case 2: spatial_composeX (buffer, width>>level, height>>level, stride<<level); break; |
|
} |
|
} |
|
} |
|
|
|
static const int hilbert[16][2]={ |
|
{0,0}, {1,0}, {1,1}, {0,1}, |
|
{0,2}, {0,3}, {1,3}, {1,2}, |
|
{2,2}, {2,3}, {3,3}, {3,2}, |
|
{3,1}, {2,1}, {2,0}, {3,0}, |
|
}; |
|
#if 0 |
|
-o o- |
|
| | |
|
o-o |
|
|
|
-o-o o-o- |
|
| | |
|
o-o o-o |
|
| | |
|
o o-o o |
|
| | | | |
|
o-o o-o |
|
|
|
0112122312232334122323342334 |
|
0123456789ABCDEF0123456789AB |
|
RLLRMRRLLRRMRLLMLRRLMLLRRLLM |
|
|
|
4 B F 14 1B |
|
4 11 15 20 27 |
|
|
|
-o o-o-o o-o-o o- |
|
| | | | | | |
|
o-o o-o o-o o-o |
|
| | |
|
o-o o-o o-o o-o |
|
| | | | | | |
|
o o-o-o o-o-o o |
|
| | |
|
o-o o-o-o-o o-o |
|
| | | | |
|
o-o o-o o-o o-o |
|
| | | | |
|
o o-o o o o-o o |
|
| | | | | | | | |
|
o-o o-o o-o o-o |
|
|
|
#endif |
|
|
|
#define SVI(a, i, x, y) \ |
|
{\ |
|
a[i][0]= x;\ |
|
a[i][1]= y;\ |
|
i++;\ |
|
} |
|
|
|
static int sig_cmp(const void *a, const void *b){ |
|
const int16_t* da = (const int16_t *) a; |
|
const int16_t* db = (const int16_t *) b; |
|
|
|
if(da[1] != db[1]) return da[1] - db[1]; |
|
else return da[0] - db[0]; |
|
} |
|
|
|
|
|
static void encode_subband(SnowContext *s, SubBand *b, DWTELEM *src, DWTELEM *parent, int stride, int orientation){ |
|
const int level= b->level; |
|
const int w= b->width; |
|
const int h= b->height; |
|
int x, y; |
|
|
|
#if 0 |
|
if(orientation==3 && parent && 0){ |
|
int16_t candidate[w*h][2]; |
|
uint8_t state[w*h]; |
|
int16_t boarder[3][w*h*4][2]; |
|
int16_t significant[w*h][2]; |
|
int candidate_count=0; |
|
int boarder_count[3]={0,0,0}; |
|
int significant_count=0; |
|
int rle_pos=0; |
|
int v, last_v; |
|
int primary= orientation==1; |
|
|
|
memset(candidate, 0, sizeof(candidate)); |
|
memset(state, 0, sizeof(state)); |
|
memset(boarder, 0, sizeof(boarder)); |
|
|
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
if(parent[(x>>1) + (y>>1)*2*stride]) |
|
SVI(candidate, candidate_count, x, y) |
|
} |
|
} |
|
|
|
for(;;){ |
|
while(candidate_count && !boarder_count[0] && !boarder_count[1] && !boarder_count[2]){ |
|
candidate_count--; |
|
x= candidate[ candidate_count][0]; |
|
y= candidate[ candidate_count][1]; |
|
if(state[x + y*w]) |
|
continue; |
|
state[x + y*w]= 1; |
|
v= !!src[x + y*stride]; |
|
put_cabac(&s->c, &b->state[0][0], v); |
|
if(v){ |
|
SVI(significant, significant_count, x,y) |
|
if(x && !state[x - 1 + y *w]) SVI(boarder[0],boarder_count[0],x-1,y ) |
|
if(y && !state[x + (y-1)*w]) SVI(boarder[1],boarder_count[1],x ,y-1) |
|
if(x+1<w && !state[x + 1 + y *w]) SVI(boarder[0],boarder_count[0],x+1,y ) |
|
if(y+1<h && !state[x + (y+1)*w]) SVI(boarder[1],boarder_count[1],x ,y+1) |
|
if(x && y && !state[x - 1 + (y-1)*w]) SVI(boarder[2],boarder_count[2],x-1,y-1) |
|
if(x && y+1<h && !state[x - 1 + (y+1)*w]) SVI(boarder[2],boarder_count[2],x-1,y+1) |
|
if(x+1<w && y+1<h && !state[x + 1 + (y+1)*w]) SVI(boarder[2],boarder_count[2],x+1,y+1) |
|
if(x+1<w && y && !state[x + 1 + (y-1)*w]) SVI(boarder[2],boarder_count[2],x+1,y-1) |
|
} |
|
} |
|
while(!boarder_count[0] && !boarder_count[1] && !boarder_count[2] && rle_pos < w*h){ |
|
int run=0; |
|
for(; rle_pos < w*h;){ |
|
x= rle_pos % w; //FIXME speed |
|
y= rle_pos / w; |
|
rle_pos++; |
|
if(state[x + y*w]) |
|
continue; |
|
state[x + y*w]= 1; |
|
v= !!src[x + y*stride]; |
|
if(v){ |
|
put_symbol(&s->c, b->state[1], run, 0); |
|
SVI(significant, significant_count, x,y) |
|
if(x && !state[x - 1 + y *w]) SVI(boarder[0],boarder_count[0],x-1,y ) |
|
if(y && !state[x + (y-1)*w]) SVI(boarder[1],boarder_count[1],x ,y-1) |
|
if(x+1<w && !state[x + 1 + y *w]) SVI(boarder[0],boarder_count[0],x+1,y ) |
|
if(y+1<h && !state[x + (y+1)*w]) SVI(boarder[1],boarder_count[1],x ,y+1) |
|
if(x && y && !state[x - 1 + (y-1)*w]) SVI(boarder[2],boarder_count[2],x-1,y-1) |
|
if(x && y+1<h && !state[x - 1 + (y+1)*w]) SVI(boarder[2],boarder_count[2],x-1,y+1) |
|
if(x+1<w && y+1<h && !state[x + 1 + (y+1)*w]) SVI(boarder[2],boarder_count[2],x+1,y+1) |
|
if(x+1<w && y && !state[x + 1 + (y-1)*w]) SVI(boarder[2],boarder_count[2],x+1,y-1) |
|
break; |
|
//FIXME note only right & down can be boarders |
|
} |
|
run++; |
|
} |
|
} |
|
if(!boarder_count[0] && !boarder_count[1] && !boarder_count[2]) |
|
break; |
|
|
|
while(boarder_count[0] || boarder_count[1] || boarder_count[2]){ |
|
int index; |
|
|
|
if (boarder_count[ primary]) index= primary; |
|
else if(boarder_count[1-primary]) index=1-primary; |
|
else index=2; |
|
|
|
boarder_count[index]--; |
|
x= boarder[index][ boarder_count[index] ][0]; |
|
y= boarder[index][ boarder_count[index] ][1]; |
|
if(state[x + y*w]) //FIXME maybe check earlier |
|
continue; |
|
state[x + y*w]= 1; |
|
v= !!src[x + y*stride]; |
|
put_cabac(&s->c, &b->state[0][index+1], v); |
|
if(v){ |
|
SVI(significant, significant_count, x,y) |
|
if(x && !state[x - 1 + y *w]) SVI(boarder[0],boarder_count[0],x-1,y ) |
|
if(y && !state[x + (y-1)*w]) SVI(boarder[1],boarder_count[1],x ,y-1) |
|
if(x+1<w && !state[x + 1 + y *w]) SVI(boarder[0],boarder_count[0],x+1,y ) |
|
if(y+1<h && !state[x + (y+1)*w]) SVI(boarder[1],boarder_count[1],x ,y+1) |
|
if(x && y && !state[x - 1 + (y-1)*w]) SVI(boarder[2],boarder_count[2],x-1,y-1) |
|
if(x && y+1<h && !state[x - 1 + (y+1)*w]) SVI(boarder[2],boarder_count[2],x-1,y+1) |
|
if(x+1<w && y+1<h && !state[x + 1 + (y+1)*w]) SVI(boarder[2],boarder_count[2],x+1,y+1) |
|
if(x+1<w && y && !state[x + 1 + (y-1)*w]) SVI(boarder[2],boarder_count[2],x+1,y-1) |
|
} |
|
} |
|
} |
|
//FIXME sort significant coeffs maybe |
|
if(1){ |
|
qsort(significant, significant_count, sizeof(int16_t[2]), sig_cmp); |
|
} |
|
|
|
last_v=1; |
|
while(significant_count){ |
|
int context= 3 + quant7[last_v&0xFF]; //use significance of suroundings |
|
significant_count--; |
|
x= significant[significant_count][0];//FIXME try opposit direction |
|
y= significant[significant_count][1]; |
|
v= src[x + y*stride]; |
|
put_symbol(&s->c, b->state[context + 2], v, 1); //FIXME try to avoid first bit, try this with the old code too!! |
|
last_v= v; |
|
} |
|
} |
|
#endif |
|
if(1){ |
|
int run=0; |
|
int runs[w*h]; |
|
int run_index=0; |
|
|
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
int v, p=0; |
|
int /*ll=0, */l=0, lt=0, t=0, rt=0; |
|
v= src[x + y*stride]; |
|
|
|
if(y){ |
|
t= src[x + (y-1)*stride]; |
|
if(x){ |
|
lt= src[x - 1 + (y-1)*stride]; |
|
} |
|
if(x + 1 < w){ |
|
rt= src[x + 1 + (y-1)*stride]; |
|
} |
|
} |
|
if(x){ |
|
l= src[x - 1 + y*stride]; |
|
/*if(x > 1){ |
|
if(orientation==1) ll= src[y + (x-2)*stride]; |
|
else ll= src[x - 2 + y*stride]; |
|
}*/ |
|
} |
|
if(parent){ |
|
int px= x>>1; |
|
int py= y>>1; |
|
if(px<b->parent->width && py<b->parent->height) |
|
p= parent[px + py*2*stride]; |
|
} |
|
if(!(/*ll|*/l|lt|t|rt|p)){ |
|
if(v){ |
|
runs[run_index++]= run; |
|
run=0; |
|
}else{ |
|
run++; |
|
} |
|
} |
|
} |
|
} |
|
runs[run_index++]= run; |
|
run_index=0; |
|
run= runs[run_index++]; |
|
|
|
put_symbol(&s->c, b->state[1], run, 0); |
|
|
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
int v, p=0; |
|
int /*ll=0, */l=0, lt=0, t=0, rt=0; |
|
v= src[x + y*stride]; |
|
|
|
if(y){ |
|
t= src[x + (y-1)*stride]; |
|
if(x){ |
|
lt= src[x - 1 + (y-1)*stride]; |
|
} |
|
if(x + 1 < w){ |
|
rt= src[x + 1 + (y-1)*stride]; |
|
} |
|
} |
|
if(x){ |
|
l= src[x - 1 + y*stride]; |
|
/*if(x > 1){ |
|
if(orientation==1) ll= src[y + (x-2)*stride]; |
|
else ll= src[x - 2 + y*stride]; |
|
}*/ |
|
} |
|
if(parent){ |
|
int px= x>>1; |
|
int py= y>>1; |
|
if(px<b->parent->width && py<b->parent->height) |
|
p= parent[px + py*2*stride]; |
|
} |
|
if(/*ll|*/l|lt|t|rt|p){ |
|
int context= av_log2(/*ABS(ll) + */3*ABS(l) + ABS(lt) + 2*ABS(t) + ABS(rt) + ABS(p)); |
|
|
|
put_cabac(&s->c, &b->state[0][context], !!v); |
|
}else{ |
|
if(!run){ |
|
run= runs[run_index++]; |
|
put_symbol(&s->c, b->state[1], run, 0); |
|
assert(v); |
|
}else{ |
|
run--; |
|
assert(!v); |
|
} |
|
} |
|
if(v){ |
|
int context= av_log2(/*ABS(ll) + */3*ABS(l) + ABS(lt) + 2*ABS(t) + ABS(rt) + ABS(p)); |
|
|
|
put_symbol(&s->c, b->state[context + 2], ABS(v)-1, 0); |
|
put_cabac(&s->c, &b->state[0][16 + 1 + 3 + quant3b[l&0xFF] + 3*quant3b[t&0xFF]], v<0); |
|
} |
|
} |
|
} |
|
return; |
|
} |
|
} |
|
|
|
static inline void decode_subband(SnowContext *s, SubBand *b, DWTELEM *src, DWTELEM *parent, int stride, int orientation){ |
|
const int level= b->level; |
|
const int w= b->width; |
|
const int h= b->height; |
|
int x,y; |
|
|
|
START_TIMER |
|
|
|
if(1){ |
|
int run; |
|
|
|
for(y=0; y<b->height; y++) |
|
memset(&src[y*stride], 0, b->width*sizeof(DWTELEM)); |
|
|
|
run= get_symbol(&s->c, b->state[1], 0); |
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
int v, p=0; |
|
int /*ll=0, */l=0, lt=0, t=0, rt=0; |
|
|
|
if(y){ |
|
t= src[x + (y-1)*stride]; |
|
if(x){ |
|
lt= src[x - 1 + (y-1)*stride]; |
|
} |
|
if(x + 1 < w){ |
|
rt= src[x + 1 + (y-1)*stride]; |
|
} |
|
} |
|
if(x){ |
|
l= src[x - 1 + y*stride]; |
|
/*if(x > 1){ |
|
if(orientation==1) ll= src[y + (x-2)*stride]; |
|
else ll= src[x - 2 + y*stride]; |
|
}*/ |
|
} |
|
if(parent){ |
|
int px= x>>1; |
|
int py= y>>1; |
|
if(px<b->parent->width && py<b->parent->height) |
|
p= parent[px + py*2*stride]; |
|
} |
|
if(/*ll|*/l|lt|t|rt|p){ |
|
int context= av_log2(/*ABS(ll) + */3*ABS(l) + ABS(lt) + 2*ABS(t) + ABS(rt) + ABS(p)); |
|
|
|
v=get_cabac(&s->c, &b->state[0][context]); |
|
}else{ |
|
if(!run){ |
|
run= get_symbol(&s->c, b->state[1], 0); |
|
//FIXME optimize this here |
|
//FIXME try to store a more naive run |
|
v=1; |
|
}else{ |
|
run--; |
|
v=0; |
|
} |
|
} |
|
if(v){ |
|
int context= av_log2(/*ABS(ll) + */3*ABS(l) + ABS(lt) + 2*ABS(t) + ABS(rt) + ABS(p)); |
|
v= get_symbol(&s->c, b->state[context + 2], 0) + 1; |
|
if(get_cabac(&s->c, &b->state[0][16 + 1 + 3 + quant3b[l&0xFF] + 3*quant3b[t&0xFF]])) |
|
v= -v; |
|
src[x + y*stride]= v; |
|
} |
|
} |
|
} |
|
if(level+1 == s->spatial_decomposition_count){ |
|
STOP_TIMER("decode_subband") |
|
} |
|
|
|
return; |
|
} |
|
} |
|
|
|
static void reset_contexts(SnowContext *s){ |
|
int plane_index, level, orientation; |
|
|
|
for(plane_index=0; plane_index<2; plane_index++){ |
|
for(level=0; level<s->spatial_decomposition_count; level++){ |
|
for(orientation=level ? 1:0; orientation<4; orientation++){ |
|
memset(s->plane[plane_index].band[level][orientation].state, 0, sizeof(s->plane[plane_index].band[level][orientation].state)); |
|
} |
|
} |
|
} |
|
memset(s->mb_band.state, 0, sizeof(s->mb_band.state)); |
|
memset(s->mv_band[0].state, 0, sizeof(s->mv_band[0].state)); |
|
memset(s->mv_band[1].state, 0, sizeof(s->mv_band[1].state)); |
|
memset(s->header_state, 0, sizeof(s->header_state)); |
|
} |
|
|
|
static void mc_block(uint8_t *dst, uint8_t *src, uint8_t *tmp, int stride, int b_w, int b_h, int dx, int dy){ |
|
int x, y; |
|
|
|
for(y=0; y < b_h+5; y++){ |
|
for(x=0; x < b_w; x++){ |
|
int a0= src[x + y*stride]; |
|
int a1= src[x + 1 + y*stride]; |
|
int a2= src[x + 2 + y*stride]; |
|
int a3= src[x + 3 + y*stride]; |
|
int a4= src[x + 4 + y*stride]; |
|
int a5= src[x + 5 + y*stride]; |
|
// int am= 9*(a1+a2) - (a0+a3); |
|
int am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5); |
|
// int am= 18*(a2+a3) - 2*(a1+a4); |
|
// int aL= (-7*a0 + 105*a1 + 35*a2 - 5*a3)>>3; |
|
// int aR= (-7*a3 + 105*a2 + 35*a1 - 5*a0)>>3; |
|
|
|
// if(b_w==16) am= 8*(a1+a2); |
|
|
|
if(dx<8) tmp[x + y*stride]= (32*a2*( 8-dx) + am* dx + 128)>>8; |
|
else tmp[x + y*stride]= ( am*(16-dx) + 32*a3*(dx-8) + 128)>>8; |
|
|
|
/* if (dx< 4) tmp[x + y*stride]= (16*a1*( 4-dx) + aL* dx + 32)>>6; |
|
else if(dx< 8) tmp[x + y*stride]= ( aL*( 8-dx) + am*(dx- 4) + 32)>>6; |
|
else if(dx<12) tmp[x + y*stride]= ( am*(12-dx) + aR*(dx- 8) + 32)>>6; |
|
else tmp[x + y*stride]= ( aR*(16-dx) + 16*a2*(dx-12) + 32)>>6;*/ |
|
} |
|
} |
|
for(y=0; y < b_h; y++){ |
|
for(x=0; x < b_w; x++){ |
|
int a0= tmp[x + y *stride]; |
|
int a1= tmp[x + (y + 1)*stride]; |
|
int a2= tmp[x + (y + 2)*stride]; |
|
int a3= tmp[x + (y + 3)*stride]; |
|
int a4= tmp[x + (y + 4)*stride]; |
|
int a5= tmp[x + (y + 5)*stride]; |
|
int am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5); |
|
// int am= 18*(a2+a3) - 2*(a1+a4); |
|
/* int aL= (-7*a0 + 105*a1 + 35*a2 - 5*a3)>>3; |
|
int aR= (-7*a3 + 105*a2 + 35*a1 - 5*a0)>>3;*/ |
|
|
|
// if(b_w==16) am= 8*(a1+a2); |
|
|
|
if(dy<8) dst[x + y*stride]= (32*a2*( 8-dy) + am* dy + 128)>>8; |
|
else dst[x + y*stride]= ( am*(16-dy) + 32*a3*(dy-8) + 128)>>8; |
|
|
|
/* if (dy< 4) tmp[x + y*stride]= (16*a1*( 4-dy) + aL* dy + 32)>>6; |
|
else if(dy< 8) tmp[x + y*stride]= ( aL*( 8-dy) + am*(dy- 4) + 32)>>6; |
|
else if(dy<12) tmp[x + y*stride]= ( am*(12-dy) + aR*(dy- 8) + 32)>>6; |
|
else tmp[x + y*stride]= ( aR*(16-dy) + 16*a2*(dy-12) + 32)>>6;*/ |
|
} |
|
} |
|
} |
|
|
|
#define mcb(dx,dy,b_w)\ |
|
static void mc_block ## dx ## dy(uint8_t *dst, uint8_t *src, int stride){\ |
|
uint8_t tmp[stride*(b_w+5)];\ |
|
mc_block(dst, src-2-2*stride, tmp, stride, b_w, b_w, dx, dy);\ |
|
} |
|
|
|
mcb( 0, 0,16) |
|
mcb( 4, 0,16) |
|
mcb( 8, 0,16) |
|
mcb(12, 0,16) |
|
mcb( 0, 4,16) |
|
mcb( 4, 4,16) |
|
mcb( 8, 4,16) |
|
mcb(12, 4,16) |
|
mcb( 0, 8,16) |
|
mcb( 4, 8,16) |
|
mcb( 8, 8,16) |
|
mcb(12, 8,16) |
|
mcb( 0,12,16) |
|
mcb( 4,12,16) |
|
mcb( 8,12,16) |
|
mcb(12,12,16) |
|
|
|
#define mca(dx,dy,b_w)\ |
|
static void mc_block_hpel ## dx ## dy(uint8_t *dst, uint8_t *src, int stride, int h){\ |
|
uint8_t tmp[stride*(b_w+5)];\ |
|
assert(h==b_w);\ |
|
mc_block(dst, src-2-2*stride, tmp, stride, b_w, b_w, dx, dy);\ |
|
} |
|
|
|
mca( 0, 0,16) |
|
mca( 8, 0,16) |
|
mca( 0, 8,16) |
|
mca( 8, 8,16) |
|
|
|
static void add_xblock(DWTELEM *dst, uint8_t *src, uint8_t *obmc, int s_x, int s_y, int b_w, int b_h, int mv_x, int mv_y, int w, int h, int dst_stride, int src_stride, int obmc_stride, int mb_type, int add){ |
|
uint8_t tmp[src_stride*(b_h+5)]; //FIXME move to context to gurantee alignment |
|
int x,y; |
|
|
|
if(s_x<0){ |
|
obmc -= s_x; |
|
b_w += s_x; |
|
s_x=0; |
|
}else if(s_x + b_w > w){ |
|
b_w = w - s_x; |
|
} |
|
if(s_y<0){ |
|
obmc -= s_y*obmc_stride; |
|
b_h += s_y; |
|
s_y=0; |
|
}else if(s_y + b_h> h){ |
|
b_h = h - s_y; |
|
} |
|
|
|
dst += s_x + s_y*dst_stride; |
|
|
|
if(mb_type==1){ |
|
src += s_x + s_y*src_stride; |
|
for(y=0; y < b_h; y++){ |
|
for(x=0; x < b_w; x++){ |
|
if(add) dst[x + y*dst_stride] += obmc[x + y*obmc_stride] * 128 * (256/OBMC_MAX); |
|
else dst[x + y*dst_stride] -= obmc[x + y*obmc_stride] * 128 * (256/OBMC_MAX); |
|
} |
|
} |
|
}else{ |
|
int dx= mv_x&15; |
|
int dy= mv_y&15; |
|
// int dxy= (mv_x&1) + 2*(mv_y&1); |
|
|
|
s_x += (mv_x>>4) - 2; |
|
s_y += (mv_y>>4) - 2; |
|
src += s_x + s_y*src_stride; |
|
//use dsputil |
|
|
|
if( (unsigned)s_x >= w - b_w - 4 |
|
|| (unsigned)s_y >= h - b_h - 4){ |
|
ff_emulated_edge_mc(tmp + 32, src, src_stride, b_w+5, b_h+5, s_x, s_y, w, h); |
|
src= tmp + 32; |
|
} |
|
|
|
if(mb_type==0){ |
|
mc_block(tmp, src, tmp + 64+8, src_stride, b_w, b_h, dx, dy); |
|
}else{ |
|
int sum=0; |
|
for(y=0; y < b_h; y++){ |
|
for(x=0; x < b_w; x++){ |
|
sum += src[x+ y*src_stride]; |
|
} |
|
} |
|
sum= (sum + b_h*b_w/2) / (b_h*b_w); |
|
for(y=0; y < b_h; y++){ |
|
for(x=0; x < b_w; x++){ |
|
tmp[x + y*src_stride]= sum; |
|
} |
|
} |
|
} |
|
|
|
for(y=0; y < b_h; y++){ |
|
for(x=0; x < b_w; x++){ |
|
if(add) dst[x + y*dst_stride] += obmc[x + y*obmc_stride] * tmp[x + y*src_stride] * (256/OBMC_MAX); |
|
else dst[x + y*dst_stride] -= obmc[x + y*obmc_stride] * tmp[x + y*src_stride] * (256/OBMC_MAX); |
|
} |
|
} |
|
} |
|
} |
|
|
|
static void predict_plane(SnowContext *s, DWTELEM *buf, int plane_index, int add){ |
|
Plane *p= &s->plane[plane_index]; |
|
const int mb_w= s->mb_band.width; |
|
const int mb_h= s->mb_band.height; |
|
const int mb_stride= s->mb_band.stride; |
|
int x, y, mb_x, mb_y; |
|
int scale = plane_index ? s->mv_scale : 2*s->mv_scale; |
|
int block_w = plane_index ? 8 : 16; |
|
uint8_t *obmc = plane_index ? obmc16 : obmc32; |
|
int obmc_stride= plane_index ? 16 : 32; |
|
int ref_stride= s->last_picture.linesize[plane_index]; |
|
uint8_t *ref = s->last_picture.data[plane_index]; |
|
int w= p->width; |
|
int h= p->height; |
|
|
|
if(s->avctx->debug&512){ |
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
if(add) buf[x + y*w]+= 128*256; |
|
else buf[x + y*w]-= 128*256; |
|
} |
|
} |
|
|
|
return; |
|
} |
|
for(mb_y=-1; mb_y<=mb_h; mb_y++){ |
|
for(mb_x=-1; mb_x<=mb_w; mb_x++){ |
|
int index= clip(mb_x, 0, mb_w-1) + clip(mb_y, 0, mb_h-1)*mb_stride; |
|
|
|
add_xblock(buf, ref, obmc, |
|
block_w*mb_x - block_w/2, |
|
block_w*mb_y - block_w/2, |
|
2*block_w, 2*block_w, |
|
s->mv_band[0].buf[index]*scale, s->mv_band[1].buf[index]*scale, |
|
w, h, |
|
w, ref_stride, obmc_stride, |
|
s->mb_band.buf[index], add); |
|
|
|
} |
|
} |
|
} |
|
|
|
static void quantize(SnowContext *s, SubBand *b, DWTELEM *src, int stride, int bias){ |
|
const int level= b->level; |
|
const int w= b->width; |
|
const int h= b->height; |
|
const int qlog= clip(s->qlog + b->qlog, 0, 128); |
|
const int qmul= qexp[qlog&7]<<(qlog>>3); |
|
int x,y, thres1, thres2; |
|
START_TIMER |
|
|
|
assert(QROOT==8); |
|
|
|
bias= bias ? 0 : (3*qmul)>>3; |
|
thres1= ((qmul - bias)>>QEXPSHIFT) - 1; |
|
thres2= 2*thres1; |
|
|
|
if(!bias){ |
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
int i= src[x + y*stride]; |
|
|
|
if((unsigned)(i+thres1) > thres2){ |
|
if(i>=0){ |
|
i<<= QEXPSHIFT; |
|
i/= qmul; //FIXME optimize |
|
src[x + y*stride]= i; |
|
}else{ |
|
i= -i; |
|
i<<= QEXPSHIFT; |
|
i/= qmul; //FIXME optimize |
|
src[x + y*stride]= -i; |
|
} |
|
}else |
|
src[x + y*stride]= 0; |
|
} |
|
} |
|
}else{ |
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
int i= src[x + y*stride]; |
|
|
|
if((unsigned)(i+thres1) > thres2){ |
|
if(i>=0){ |
|
i<<= QEXPSHIFT; |
|
i= (i + bias) / qmul; //FIXME optimize |
|
src[x + y*stride]= i; |
|
}else{ |
|
i= -i; |
|
i<<= QEXPSHIFT; |
|
i= (i + bias) / qmul; //FIXME optimize |
|
src[x + y*stride]= -i; |
|
} |
|
}else |
|
src[x + y*stride]= 0; |
|
} |
|
} |
|
} |
|
if(level+1 == s->spatial_decomposition_count){ |
|
// STOP_TIMER("quantize") |
|
} |
|
} |
|
|
|
static void dequantize(SnowContext *s, SubBand *b, DWTELEM *src, int stride){ |
|
const int level= b->level; |
|
const int w= b->width; |
|
const int h= b->height; |
|
const int qlog= clip(s->qlog + b->qlog, 0, 128); |
|
const int qmul= qexp[qlog&7]<<(qlog>>3); |
|
const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT; |
|
int x,y; |
|
|
|
assert(QROOT==8); |
|
|
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
int i= src[x + y*stride]; |
|
if(i<0){ |
|
src[x + y*stride]= -((-i*qmul + qadd)>>(QEXPSHIFT)); //FIXME try different bias |
|
}else if(i>0){ |
|
src[x + y*stride]= (( i*qmul + qadd)>>(QEXPSHIFT)); |
|
} |
|
} |
|
} |
|
} |
|
|
|
static void decorrelate(SnowContext *s, SubBand *b, DWTELEM *src, int stride, int inverse, int use_median){ |
|
const int w= b->width; |
|
const int h= b->height; |
|
int x,y; |
|
|
|
for(y=h-1; y>=0; y--){ |
|
for(x=w-1; x>=0; x--){ |
|
int i= x + y*stride; |
|
|
|
if(x){ |
|
if(use_median){ |
|
if(y && x+1<w) src[i] -= mid_pred(src[i - 1], src[i - stride], src[i - stride + 1]); |
|
else src[i] -= src[i - 1]; |
|
}else{ |
|
if(y) src[i] -= mid_pred(src[i - 1], src[i - stride], src[i - 1] + src[i - stride] - src[i - 1 - stride]); |
|
else src[i] -= src[i - 1]; |
|
} |
|
}else{ |
|
if(y) src[i] -= src[i - stride]; |
|
} |
|
} |
|
} |
|
} |
|
|
|
static void correlate(SnowContext *s, SubBand *b, DWTELEM *src, int stride, int inverse, int use_median){ |
|
const int w= b->width; |
|
const int h= b->height; |
|
int x,y; |
|
|
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
int i= x + y*stride; |
|
|
|
if(x){ |
|
if(use_median){ |
|
if(y && x+1<w) src[i] += mid_pred(src[i - 1], src[i - stride], src[i - stride + 1]); |
|
else src[i] += src[i - 1]; |
|
}else{ |
|
if(y) src[i] += mid_pred(src[i - 1], src[i - stride], src[i - 1] + src[i - stride] - src[i - 1 - stride]); |
|
else src[i] += src[i - 1]; |
|
} |
|
}else{ |
|
if(y) src[i] += src[i - stride]; |
|
} |
|
} |
|
} |
|
} |
|
|
|
static void encode_header(SnowContext *s){ |
|
int plane_index, level, orientation; |
|
|
|
put_cabac(&s->c, s->header_state, s->keyframe); // state clearing stuff? |
|
if(s->keyframe){ |
|
put_symbol(&s->c, s->header_state, s->version, 0); |
|
put_symbol(&s->c, s->header_state, s->temporal_decomposition_type, 0); |
|
put_symbol(&s->c, s->header_state, s->temporal_decomposition_count, 0); |
|
put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0); |
|
put_symbol(&s->c, s->header_state, s->colorspace_type, 0); |
|
put_symbol(&s->c, s->header_state, s->b_width, 0); |
|
put_symbol(&s->c, s->header_state, s->b_height, 0); |
|
put_symbol(&s->c, s->header_state, s->chroma_h_shift, 0); |
|
put_symbol(&s->c, s->header_state, s->chroma_v_shift, 0); |
|
put_cabac(&s->c, s->header_state, s->spatial_scalability); |
|
// put_cabac(&s->c, s->header_state, s->rate_scalability); |
|
|
|
for(plane_index=0; plane_index<2; plane_index++){ |
|
for(level=0; level<s->spatial_decomposition_count; level++){ |
|
for(orientation=level ? 1:0; orientation<4; orientation++){ |
|
if(orientation==2) continue; |
|
put_symbol(&s->c, s->header_state, s->plane[plane_index].band[level][orientation].qlog, 1); |
|
} |
|
} |
|
} |
|
} |
|
put_symbol(&s->c, s->header_state, s->spatial_decomposition_type, 0); |
|
put_symbol(&s->c, s->header_state, s->qlog, 1); |
|
put_symbol(&s->c, s->header_state, s->mv_scale, 0); |
|
put_symbol(&s->c, s->header_state, s->qbias, 1); |
|
} |
|
|
|
static int decode_header(SnowContext *s){ |
|
int plane_index, level, orientation; |
|
|
|
s->keyframe= get_cabac(&s->c, s->header_state); |
|
if(s->keyframe){ |
|
s->version= get_symbol(&s->c, s->header_state, 0); |
|
if(s->version>0){ |
|
av_log(s->avctx, AV_LOG_ERROR, "version %d not supported", s->version); |
|
return -1; |
|
} |
|
s->temporal_decomposition_type= get_symbol(&s->c, s->header_state, 0); |
|
s->temporal_decomposition_count= get_symbol(&s->c, s->header_state, 0); |
|
s->spatial_decomposition_count= get_symbol(&s->c, s->header_state, 0); |
|
s->colorspace_type= get_symbol(&s->c, s->header_state, 0); |
|
s->b_width= get_symbol(&s->c, s->header_state, 0); |
|
s->b_height= get_symbol(&s->c, s->header_state, 0); |
|
s->chroma_h_shift= get_symbol(&s->c, s->header_state, 0); |
|
s->chroma_v_shift= get_symbol(&s->c, s->header_state, 0); |
|
s->spatial_scalability= get_cabac(&s->c, s->header_state); |
|
// s->rate_scalability= get_cabac(&s->c, s->header_state); |
|
|
|
for(plane_index=0; plane_index<3; plane_index++){ |
|
for(level=0; level<s->spatial_decomposition_count; level++){ |
|
for(orientation=level ? 1:0; orientation<4; orientation++){ |
|
int q; |
|
if (plane_index==2) q= s->plane[1].band[level][orientation].qlog; |
|
else if(orientation==2) q= s->plane[plane_index].band[level][1].qlog; |
|
else q= get_symbol(&s->c, s->header_state, 1); |
|
s->plane[plane_index].band[level][orientation].qlog= q; |
|
} |
|
} |
|
} |
|
} |
|
|
|
s->spatial_decomposition_type= get_symbol(&s->c, s->header_state, 0); |
|
if(s->spatial_decomposition_type > 2){ |
|
av_log(s->avctx, AV_LOG_ERROR, "spatial_decomposition_type %d not supported", s->spatial_decomposition_type); |
|
return -1; |
|
} |
|
|
|
s->qlog= get_symbol(&s->c, s->header_state, 1); |
|
s->mv_scale= get_symbol(&s->c, s->header_state, 0); |
|
s->qbias= get_symbol(&s->c, s->header_state, 1); |
|
|
|
return 0; |
|
} |
|
|
|
static int common_init(AVCodecContext *avctx){ |
|
SnowContext *s = avctx->priv_data; |
|
int width, height; |
|
int level, orientation, plane_index, dec; |
|
|
|
s->avctx= avctx; |
|
|
|
dsputil_init(&s->dsp, avctx); |
|
|
|
#define mcf(dx,dy)\ |
|
s->dsp.put_qpel_pixels_tab [0][dy+dx/4]=\ |
|
s->dsp.put_no_rnd_qpel_pixels_tab[0][dy+dx/4]=\ |
|
mc_block ## dx ## dy; |
|
|
|
mcf( 0, 0) |
|
mcf( 4, 0) |
|
mcf( 8, 0) |
|
mcf(12, 0) |
|
mcf( 0, 4) |
|
mcf( 4, 4) |
|
mcf( 8, 4) |
|
mcf(12, 4) |
|
mcf( 0, 8) |
|
mcf( 4, 8) |
|
mcf( 8, 8) |
|
mcf(12, 8) |
|
mcf( 0,12) |
|
mcf( 4,12) |
|
mcf( 8,12) |
|
mcf(12,12) |
|
|
|
#define mcfh(dx,dy)\ |
|
s->dsp.put_pixels_tab [0][dy/4+dx/8]=\ |
|
s->dsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\ |
|
mc_block_hpel ## dx ## dy; |
|
|
|
mcfh(0, 0) |
|
mcfh(8, 0) |
|
mcfh(0, 8) |
|
mcfh(8, 8) |
|
|
|
dec= s->spatial_decomposition_count= 5; |
|
s->spatial_decomposition_type= avctx->prediction_method; //FIXME add decorrelator type r transform_type |
|
|
|
s->chroma_h_shift= 1; //FIXME XXX |
|
s->chroma_v_shift= 1; |
|
|
|
// dec += FFMAX(s->chroma_h_shift, s->chroma_v_shift); |
|
|
|
s->b_width = (s->avctx->width +(1<<dec)-1)>>dec; |
|
s->b_height= (s->avctx->height+(1<<dec)-1)>>dec; |
|
|
|
s->spatial_dwt_buffer= av_mallocz(s->b_width*s->b_height*sizeof(DWTELEM)<<(2*dec)); |
|
s->pred_buffer= av_mallocz(s->b_width*s->b_height*sizeof(DWTELEM)<<(2*dec)); |
|
|
|
s->mv_scale= (s->avctx->flags & CODEC_FLAG_QPEL) ? 2 : 4; |
|
|
|
for(plane_index=0; plane_index<3; plane_index++){ |
|
int w= s->avctx->width; |
|
int h= s->avctx->height; |
|
|
|
if(plane_index){ |
|
w>>= s->chroma_h_shift; |
|
h>>= s->chroma_v_shift; |
|
} |
|
s->plane[plane_index].width = w; |
|
s->plane[plane_index].height= h; |
|
av_log(NULL, AV_LOG_DEBUG, "%d %d\n", w, h); |
|
for(level=s->spatial_decomposition_count-1; level>=0; level--){ |
|
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
|
SubBand *b= &s->plane[plane_index].band[level][orientation]; |
|
|
|
b->buf= s->spatial_dwt_buffer; |
|
b->level= level; |
|
b->stride= s->plane[plane_index].width << (s->spatial_decomposition_count - level); |
|
b->width = (w + !(orientation&1))>>1; |
|
b->height= (h + !(orientation>1))>>1; |
|
|
|
if(orientation&1) b->buf += (w+1)>>1; |
|
if(orientation>1) b->buf += b->stride>>1; |
|
|
|
if(level) |
|
b->parent= &s->plane[plane_index].band[level-1][orientation]; |
|
} |
|
w= (w+1)>>1; |
|
h= (h+1)>>1; |
|
} |
|
} |
|
|
|
//FIXME init_subband() ? |
|
s->mb_band.stride= s->mv_band[0].stride= s->mv_band[1].stride= |
|
s->mb_band.width = s->mv_band[0].width = s->mv_band[1].width = (s->avctx->width + 15)>>4; |
|
s->mb_band.height= s->mv_band[0].height= s->mv_band[1].height= (s->avctx->height+ 15)>>4; |
|
s->mb_band .buf= av_mallocz(s->mb_band .stride * s->mb_band .height*sizeof(DWTELEM)); |
|
s->mv_band[0].buf= av_mallocz(s->mv_band[0].stride * s->mv_band[0].height*sizeof(DWTELEM)); |
|
s->mv_band[1].buf= av_mallocz(s->mv_band[1].stride * s->mv_band[1].height*sizeof(DWTELEM)); |
|
|
|
reset_contexts(s); |
|
/* |
|
width= s->width= avctx->width; |
|
height= s->height= avctx->height; |
|
|
|
assert(width && height); |
|
*/ |
|
s->avctx->get_buffer(s->avctx, &s->mconly_picture); |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static void calculate_vissual_weight(SnowContext *s, Plane *p){ |
|
int width = p->width; |
|
int height= p->height; |
|
int i, level, orientation, x, y; |
|
|
|
for(level=0; level<s->spatial_decomposition_count; level++){ |
|
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
|
SubBand *b= &p->band[level][orientation]; |
|
DWTELEM *buf= b->buf; |
|
int64_t error=0; |
|
|
|
memset(s->spatial_dwt_buffer, 0, sizeof(int)*width*height); |
|
buf[b->width/2 + b->height/2*b->stride]= 256*256; |
|
spatial_idwt(s, s->spatial_dwt_buffer, width, height, width); |
|
for(y=0; y<height; y++){ |
|
for(x=0; x<width; x++){ |
|
int64_t d= s->spatial_dwt_buffer[x + y*width]; |
|
error += d*d; |
|
} |
|
} |
|
|
|
b->qlog= (int)(log(352256.0/sqrt(error)) / log(pow(2.0, 1.0/QROOT))+0.5); |
|
av_log(NULL, AV_LOG_DEBUG, "%d %d %d\n", level, orientation, b->qlog/*, sqrt(error)*/); |
|
} |
|
} |
|
} |
|
|
|
static int encode_init(AVCodecContext *avctx) |
|
{ |
|
SnowContext *s = avctx->priv_data; |
|
int i; |
|
int level, orientation, plane_index; |
|
|
|
common_init(avctx); |
|
|
|
s->version=0; |
|
|
|
s->m.me.scratchpad= av_mallocz((avctx->width+64)*2*16*2*sizeof(uint8_t)); |
|
s->m.me.map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t)); |
|
s->m.me.score_map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t)); |
|
s->mb_type = av_mallocz((s->mb_band.width+1)*s->mb_band.height*sizeof(int16_t)); |
|
s->mb_mean = av_mallocz((s->mb_band.width+1)*s->mb_band.height*sizeof(int8_t )); |
|
s->dummy = av_mallocz((s->mb_band.width+1)*s->mb_band.height*sizeof(int32_t)); |
|
h263_encode_init(&s->m); //mv_penalty |
|
|
|
for(plane_index=0; plane_index<3; plane_index++){ |
|
calculate_vissual_weight(s, &s->plane[plane_index]); |
|
} |
|
|
|
|
|
avctx->coded_frame= &s->current_picture; |
|
switch(avctx->pix_fmt){ |
|
// case PIX_FMT_YUV444P: |
|
// case PIX_FMT_YUV422P: |
|
case PIX_FMT_YUV420P: |
|
case PIX_FMT_GRAY8: |
|
// case PIX_FMT_YUV411P: |
|
// case PIX_FMT_YUV410P: |
|
s->colorspace_type= 0; |
|
break; |
|
/* case PIX_FMT_RGBA32: |
|
s->colorspace= 1; |
|
break;*/ |
|
default: |
|
av_log(avctx, AV_LOG_ERROR, "format not supported\n"); |
|
return -1; |
|
} |
|
// avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift); |
|
s->chroma_h_shift= 1; |
|
s->chroma_v_shift= 1; |
|
return 0; |
|
} |
|
|
|
static int frame_start(SnowContext *s){ |
|
AVFrame tmp; |
|
|
|
if(s->keyframe) |
|
reset_contexts(s); |
|
|
|
tmp= s->last_picture; |
|
s->last_picture= s->current_picture; |
|
s->current_picture= tmp; |
|
|
|
s->current_picture.reference= 1; |
|
if(s->avctx->get_buffer(s->avctx, &s->current_picture) < 0){ |
|
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n"); |
|
return -1; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){ |
|
SnowContext *s = avctx->priv_data; |
|
CABACContext * const c= &s->c; |
|
AVFrame *pict = data; |
|
const int width= s->avctx->width; |
|
const int height= s->avctx->height; |
|
int used_count= 0; |
|
int log2_threshold, level, orientation, plane_index, i; |
|
|
|
if(avctx->strict_std_compliance >= 0){ |
|
av_log(avctx, AV_LOG_ERROR, "this codec is under development, files encoded with it wont be decodeable with future versions!!!\n" |
|
"use vstrict=-1 to use it anyway\n"); |
|
return -1; |
|
} |
|
|
|
ff_init_cabac_encoder(c, buf, buf_size); |
|
ff_init_cabac_states(c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64); |
|
|
|
s->input_picture = *pict; |
|
|
|
memset(s->header_state, 0, sizeof(s->header_state)); |
|
|
|
s->keyframe=avctx->gop_size==0 || avctx->frame_number % avctx->gop_size == 0; |
|
pict->pict_type= s->keyframe ? FF_I_TYPE : FF_P_TYPE; |
|
|
|
s->qlog= rint(QROOT*log(pict->quality / (float)FF_QP2LAMBDA)/log(2)); |
|
//<64 >60 |
|
s->qlog += 61; |
|
|
|
for(i=0; i<s->mb_band.stride * s->mb_band.height; i++){ |
|
s->mb_band.buf[i]= s->keyframe; |
|
} |
|
|
|
frame_start(s); |
|
|
|
if(pict->pict_type == P_TYPE){ |
|
int block_width = (width +15)>>4; |
|
int block_height= (height+15)>>4; |
|
int stride= s->current_picture.linesize[0]; |
|
uint8_t *src_plane= s->input_picture.data[0]; |
|
int src_stride= s->input_picture.linesize[0]; |
|
int x,y; |
|
|
|
assert(s->current_picture.data[0]); |
|
assert(s->last_picture.data[0]); |
|
|
|
s->m.avctx= s->avctx; |
|
s->m.current_picture.data[0]= s->current_picture.data[0]; |
|
s->m. last_picture.data[0]= s-> last_picture.data[0]; |
|
s->m. new_picture.data[0]= s-> input_picture.data[0]; |
|
s->m.current_picture_ptr= &s->m.current_picture; |
|
s->m. last_picture_ptr= &s->m. last_picture; |
|
s->m.linesize= |
|
s->m. last_picture.linesize[0]= |
|
s->m. new_picture.linesize[0]= |
|
s->m.current_picture.linesize[0]= stride; |
|
s->m.width = width; |
|
s->m.height= height; |
|
s->m.mb_width = block_width; |
|
s->m.mb_height= block_height; |
|
s->m.mb_stride= s->m.mb_width+1; |
|
s->m.b8_stride= 2*s->m.mb_width+1; |
|
s->m.f_code=1; |
|
s->m.pict_type= pict->pict_type; |
|
s->m.me_method= s->avctx->me_method; |
|
s->m.me.scene_change_score=0; |
|
s->m.flags= s->avctx->flags; |
|
s->m.quarter_sample= (s->avctx->flags & CODEC_FLAG_QPEL)!=0; |
|
s->m.out_format= FMT_H263; |
|
s->m.unrestricted_mv= 1; |
|
|
|
s->m.lambda= pict->quality * 3/2; //FIXME bug somewhere else |
|
s->m.qscale= (s->m.lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7); |
|
s->m.lambda2= (s->m.lambda*s->m.lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT; |
|
|
|
if(!s->motion_val8){ |
|
s->motion_val8 = av_mallocz(s->m.b8_stride*block_height*2*2*sizeof(int16_t)); |
|
s->motion_val16= av_mallocz(s->m.mb_stride*block_height*2*sizeof(int16_t)); |
|
} |
|
|
|
s->m.mb_type= s->mb_type; |
|
|
|
//dummies, to avoid segfaults |
|
s->m.current_picture.mb_mean = s->mb_mean; |
|
s->m.current_picture.mb_var = (int16_t*)s->dummy; |
|
s->m.current_picture.mc_mb_var= (int16_t*)s->dummy; |
|
s->m.current_picture.mb_type = s->dummy; |
|
|
|
s->m.current_picture.motion_val[0]= s->motion_val8; |
|
s->m.p_mv_table= s->motion_val16; |
|
s->m.dsp= s->dsp; //move |
|
ff_init_me(&s->m); |
|
|
|
|
|
s->m.me.pre_pass=1; |
|
s->m.me.dia_size= s->avctx->pre_dia_size; |
|
s->m.first_slice_line=1; |
|
for(y= block_height-1; y >= 0; y--) { |
|
uint8_t src[stride*16]; |
|
|
|
s->m.new_picture.data[0]= src - y*16*stride; //ugly |
|
s->m.mb_y= y; |
|
for(i=0; i<16 && i + 16*y<height; i++){ |
|
memcpy(&src[i*stride], &src_plane[(i+16*y)*src_stride], width); |
|
for(x=width; x<16*block_width; x++) |
|
src[i*stride+x]= src[i*stride+x-1]; |
|
} |
|
for(; i<16 && i + 16*y<16*block_height; i++) |
|
memcpy(&src[i*stride], &src[(i-1)*stride], 16*block_width); |
|
|
|
for(x=block_width-1; x >=0 ;x--) { |
|
s->m.mb_x= x; |
|
ff_init_block_index(&s->m); |
|
ff_update_block_index(&s->m); |
|
ff_pre_estimate_p_frame_motion(&s->m, x, y); |
|
} |
|
s->m.first_slice_line=0; |
|
} |
|
s->m.me.pre_pass=0; |
|
|
|
|
|
s->m.me.dia_size= s->avctx->dia_size; |
|
s->m.first_slice_line=1; |
|
for (y = 0; y < block_height; y++) { |
|
uint8_t src[stride*16]; |
|
|
|
s->m.new_picture.data[0]= src - y*16*stride; //ugly |
|
s->m.mb_y= y; |
|
|
|
assert(width <= stride); |
|
assert(width <= 16*block_width); |
|
|
|
for(i=0; i<16 && i + 16*y<height; i++){ |
|
memcpy(&src[i*stride], &src_plane[(i+16*y)*src_stride], width); |
|
for(x=width; x<16*block_width; x++) |
|
src[i*stride+x]= src[i*stride+x-1]; |
|
} |
|
for(; i<16 && i + 16*y<16*block_height; i++) |
|
memcpy(&src[i*stride], &src[(i-1)*stride], 16*block_width); |
|
|
|
for (x = 0; x < block_width; x++) { |
|
int mb_xy= x + y*(s->mb_band.stride); |
|
s->m.mb_x= x; |
|
ff_init_block_index(&s->m); |
|
ff_update_block_index(&s->m); |
|
|
|
ff_estimate_p_frame_motion(&s->m, x, y); |
|
|
|
s->mb_band .buf[mb_xy]= (s->m.mb_type[x + y*s->m.mb_stride]&CANDIDATE_MB_TYPE_INTER) |
|
? 0 : 2; |
|
s->mv_band[0].buf[mb_xy]= s->motion_val16[x + y*s->m.mb_stride][0]; |
|
s->mv_band[1].buf[mb_xy]= s->motion_val16[x + y*s->m.mb_stride][1]; |
|
|
|
if(s->mb_band .buf[x + y*(s->mb_band.stride)]==2 && 0){ |
|
int dc0=128, dc1=128, dc, dc2, dir; |
|
int offset= (s->avctx->flags & CODEC_FLAG_QPEL) ? 64 : 32; |
|
|
|
dc =s->mb_mean[x + y *s->m.mb_stride ]; |
|
if(x) dc0=s->mb_mean[x + y *s->m.mb_stride - 1]; |
|
if(y) dc1=s->mb_mean[x + (y-1)*s->m.mb_stride ]; |
|
dc2= (dc0+dc1)>>1; |
|
#if 0 |
|
if (ABS(dc0 - dc) < ABS(dc1 - dc) && ABS(dc0 - dc) < ABS(dc2 - dc)) |
|
dir= 1; |
|
else if(ABS(dc0 - dc) >=ABS(dc1 - dc) && ABS(dc1 - dc) < ABS(dc2 - dc)) |
|
dir=-1; |
|
else |
|
dir=0; |
|
#endif |
|
if(ABS(dc0 - dc) < ABS(dc1 - dc) && x){ |
|
s->mv_band[0].buf[mb_xy]= s->mv_band[0].buf[x + y*(s->mb_band.stride)-1] - offset; |
|
s->mv_band[1].buf[mb_xy]= s->mv_band[1].buf[x + y*(s->mb_band.stride)-1]; |
|
s->mb_mean[x + y *s->m.mb_stride ]= dc0; |
|
}else if(y){ |
|
s->mv_band[0].buf[mb_xy]= s->mv_band[0].buf[x + (y-1)*(s->mb_band.stride)]; |
|
s->mv_band[1].buf[mb_xy]= s->mv_band[1].buf[x + (y-1)*(s->mb_band.stride)] - offset; |
|
s->mb_mean[x + y *s->m.mb_stride ]= dc1; |
|
} |
|
} |
|
// s->mb_band .buf[x + y*(s->mb_band.stride)]=1; //FIXME intra only test |
|
} |
|
s->m.first_slice_line=0; |
|
} |
|
assert(s->m.pict_type == P_TYPE); |
|
if(s->m.me.scene_change_score > s->avctx->scenechange_threshold){ |
|
s->m.pict_type= |
|
pict->pict_type =I_TYPE; |
|
for(i=0; i<s->mb_band.stride * s->mb_band.height; i++){ |
|
s->mb_band.buf[i]= 1; |
|
s->mv_band[0].buf[i]= |
|
s->mv_band[1].buf[i]= 0; |
|
} |
|
//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum); |
|
} |
|
} |
|
|
|
s->m.first_slice_line=1; |
|
|
|
s->qbias= pict->pict_type == P_TYPE ? 2 : 0; |
|
|
|
encode_header(s); |
|
|
|
decorrelate(s, &s->mb_band , s->mb_band .buf, s->mb_band .stride, 0, 1); |
|
decorrelate(s, &s->mv_band[0], s->mv_band[0].buf, s->mv_band[0].stride, 0, 1); |
|
decorrelate(s, &s->mv_band[1], s->mv_band[1].buf, s->mv_band[1].stride, 0 ,1); |
|
encode_subband(s, &s->mb_band , s->mb_band .buf, NULL, s->mb_band .stride, 0); |
|
encode_subband(s, &s->mv_band[0], s->mv_band[0].buf, NULL, s->mv_band[0].stride, 0); |
|
encode_subband(s, &s->mv_band[1], s->mv_band[1].buf, NULL, s->mv_band[1].stride, 0); |
|
|
|
//FIXME avoid this |
|
correlate(s, &s->mb_band , s->mb_band .buf, s->mb_band .stride, 1, 1); |
|
correlate(s, &s->mv_band[0], s->mv_band[0].buf, s->mv_band[0].stride, 1, 1); |
|
correlate(s, &s->mv_band[1], s->mv_band[1].buf, s->mv_band[1].stride, 1, 1); |
|
|
|
for(plane_index=0; plane_index<3; plane_index++){ |
|
Plane *p= &s->plane[plane_index]; |
|
int w= p->width; |
|
int h= p->height; |
|
int x, y; |
|
int bits= put_bits_count(&s->c.pb); |
|
|
|
//FIXME optimize |
|
#if QPRED |
|
memset(s->pred_buffer, 0, sizeof(DWTELEM)*w*h); |
|
predict_plane(s, s->pred_buffer, plane_index, 1); |
|
spatial_dwt(s, s->pred_buffer, w, h, w); |
|
for(level=0; level<s->spatial_decomposition_count; level++){ |
|
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
|
SubBand *b= &p->band[level][orientation]; |
|
int delta= ((int)s->pred_buffer - (int)s->spatial_dwt_buffer)/sizeof(DWTELEM); |
|
|
|
quantize (s, b, b->buf + delta, b->stride, s->qbias); |
|
dequantize(s, b, b->buf + delta, b->stride); |
|
} |
|
} |
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
s->spatial_dwt_buffer[y*w + x]= pict->data[plane_index][y*pict->linesize[plane_index] + x]<<8; |
|
} |
|
} |
|
spatial_dwt(s, s->spatial_dwt_buffer, w, h, w); |
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
s->spatial_dwt_buffer[y*w + x]-= s->pred_buffer[y*w + x]; |
|
} |
|
} |
|
#else |
|
if(pict->data[plane_index]) //FIXME gray hack |
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
s->spatial_dwt_buffer[y*w + x]= pict->data[plane_index][y*pict->linesize[plane_index] + x]<<8; |
|
} |
|
} |
|
predict_plane(s, s->spatial_dwt_buffer, plane_index, 0); |
|
spatial_dwt(s, s->spatial_dwt_buffer, w, h, w); |
|
#endif |
|
|
|
for(level=0; level<s->spatial_decomposition_count; level++){ |
|
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
|
SubBand *b= &p->band[level][orientation]; |
|
|
|
quantize(s, b, b->buf, b->stride, s->qbias); |
|
if(orientation==0) |
|
decorrelate(s, b, b->buf, b->stride, pict->pict_type == P_TYPE, 0); |
|
encode_subband(s, b, b->buf, b->parent ? b->parent->buf : NULL, b->stride, orientation); |
|
assert(b->parent==NULL || b->parent->stride == b->stride*2); |
|
if(orientation==0) |
|
correlate(s, b, b->buf, b->stride, 1, 0); |
|
} |
|
} |
|
// av_log(NULL, AV_LOG_DEBUG, "plane:%d bits:%d\n", plane_index, put_bits_count(&s->c.pb) - bits); |
|
|
|
for(level=0; level<s->spatial_decomposition_count; level++){ |
|
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
|
SubBand *b= &p->band[level][orientation]; |
|
|
|
dequantize(s, b, b->buf, b->stride); |
|
} |
|
} |
|
|
|
#if QPRED |
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
s->spatial_dwt_buffer[y*w + x]+= s->pred_buffer[y*w + x]; |
|
} |
|
} |
|
spatial_idwt(s, s->spatial_dwt_buffer, w, h, w); |
|
#else |
|
spatial_idwt(s, s->spatial_dwt_buffer, w, h, w); |
|
predict_plane(s, s->spatial_dwt_buffer, plane_index, 1); |
|
#endif |
|
//FIXME optimize |
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
int v= (s->spatial_dwt_buffer[y*w + x]+128)>>8; |
|
if(v&(~255)) v= ~(v>>31); |
|
s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]= v; |
|
} |
|
} |
|
if(s->avctx->flags&CODEC_FLAG_PSNR){ |
|
int64_t error= 0; |
|
|
|
if(pict->data[plane_index]) //FIXME gray hack |
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
int d= s->spatial_dwt_buffer[y*w + x] - pict->data[plane_index][y*pict->linesize[plane_index] + x]*256; |
|
error += d*d; |
|
} |
|
} |
|
error= (error + 128*256)>>16; |
|
s->avctx->error[plane_index] += error; |
|
s->avctx->error[3] += error; |
|
} |
|
} |
|
|
|
if(s->last_picture.data[0]) |
|
avctx->release_buffer(avctx, &s->last_picture); |
|
|
|
emms_c(); |
|
|
|
return put_cabac_terminate(c, 1); |
|
} |
|
|
|
static void common_end(SnowContext *s){ |
|
av_freep(&s->spatial_dwt_buffer); |
|
av_freep(&s->mb_band.buf); |
|
av_freep(&s->mv_band[0].buf); |
|
av_freep(&s->mv_band[1].buf); |
|
|
|
av_freep(&s->m.me.scratchpad); |
|
av_freep(&s->m.me.map); |
|
av_freep(&s->m.me.score_map); |
|
av_freep(&s->mb_type); |
|
av_freep(&s->mb_mean); |
|
av_freep(&s->dummy); |
|
av_freep(&s->motion_val8); |
|
av_freep(&s->motion_val16); |
|
} |
|
|
|
static int encode_end(AVCodecContext *avctx) |
|
{ |
|
SnowContext *s = avctx->priv_data; |
|
|
|
common_end(s); |
|
|
|
return 0; |
|
} |
|
|
|
static int decode_init(AVCodecContext *avctx) |
|
{ |
|
// SnowContext *s = avctx->priv_data; |
|
|
|
common_init(avctx); |
|
|
|
return 0; |
|
} |
|
|
|
static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size){ |
|
SnowContext *s = avctx->priv_data; |
|
CABACContext * const c= &s->c; |
|
const int width= s->avctx->width; |
|
const int height= s->avctx->height; |
|
int bytes_read; |
|
AVFrame *picture = data; |
|
int log2_threshold, level, orientation, plane_index; |
|
|
|
|
|
/* no supplementary picture */ |
|
if (buf_size == 0) |
|
return 0; |
|
|
|
ff_init_cabac_decoder(c, buf, buf_size); |
|
ff_init_cabac_states(c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64); |
|
|
|
memset(s->header_state, 0, sizeof(s->header_state)); |
|
|
|
s->current_picture.pict_type= FF_I_TYPE; //FIXME I vs. P |
|
decode_header(s); |
|
|
|
frame_start(s); |
|
//keyframe flag dupliaction mess FIXME |
|
if(avctx->debug&FF_DEBUG_PICT_INFO) |
|
av_log(avctx, AV_LOG_ERROR, "keyframe:%d qlog:%d\n", s->keyframe, s->qlog); |
|
|
|
decode_subband(s, &s->mb_band , s->mb_band .buf, NULL, s->mb_band .stride, 0); |
|
decode_subband(s, &s->mv_band[0], s->mv_band[0].buf, NULL, s->mv_band[0].stride, 0); |
|
decode_subband(s, &s->mv_band[1], s->mv_band[1].buf, NULL, s->mv_band[1].stride, 0); |
|
correlate(s, &s->mb_band , s->mb_band .buf, s->mb_band .stride, 1, 1); |
|
correlate(s, &s->mv_band[0], s->mv_band[0].buf, s->mv_band[0].stride, 1, 1); |
|
correlate(s, &s->mv_band[1], s->mv_band[1].buf, s->mv_band[1].stride, 1, 1); |
|
|
|
for(plane_index=0; plane_index<3; plane_index++){ |
|
Plane *p= &s->plane[plane_index]; |
|
int w= p->width; |
|
int h= p->height; |
|
int x, y; |
|
|
|
if(s->avctx->debug&2048){ |
|
memset(s->spatial_dwt_buffer, 0, sizeof(DWTELEM)*w*h); |
|
predict_plane(s, s->spatial_dwt_buffer, plane_index, 1); |
|
|
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
int v= (s->spatial_dwt_buffer[y*w + x]+128)>>8; |
|
if(v&(~255)) v= ~(v>>31); |
|
s->mconly_picture.data[plane_index][y*s->mconly_picture.linesize[plane_index] + x]= v; |
|
} |
|
} |
|
} |
|
for(level=0; level<s->spatial_decomposition_count; level++){ |
|
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
|
SubBand *b= &p->band[level][orientation]; |
|
|
|
decode_subband(s, b, b->buf, b->parent ? b->parent->buf : NULL, b->stride, orientation); |
|
if(orientation==0) |
|
correlate(s, b, b->buf, b->stride, 1, 0); |
|
} |
|
} |
|
if(!(s->avctx->debug&1024)) |
|
for(level=0; level<s->spatial_decomposition_count; level++){ |
|
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
|
SubBand *b= &p->band[level][orientation]; |
|
|
|
dequantize(s, b, b->buf, b->stride); |
|
} |
|
} |
|
|
|
#if QPRED |
|
memset(s->pred_buffer, 0, sizeof(DWTELEM)*w*h); |
|
predict_plane(s, s->pred_buffer, plane_index, 1); |
|
spatial_dwt(s, s->pred_buffer, w, h, w); |
|
for(level=0; level<s->spatial_decomposition_count; level++){ |
|
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
|
SubBand *b= &p->band[level][orientation]; |
|
int delta= ((int)s->pred_buffer - (int)s->spatial_dwt_buffer)/sizeof(DWTELEM); |
|
|
|
quantize (s, b, b->buf + delta, b->stride, s->qbias); |
|
dequantize(s, b, b->buf + delta, b->stride); |
|
} |
|
} |
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
s->spatial_dwt_buffer[y*w + x]+= s->pred_buffer[y*w + x]; |
|
} |
|
} |
|
spatial_idwt(s, s->spatial_dwt_buffer, w, h, w); |
|
#else |
|
spatial_idwt(s, s->spatial_dwt_buffer, w, h, w); |
|
predict_plane(s, s->spatial_dwt_buffer, plane_index, 1); |
|
#endif |
|
|
|
//FIXME optimize |
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
int v= (s->spatial_dwt_buffer[y*w + x]+128)>>8; |
|
if(v&(~255)) v= ~(v>>31); |
|
s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]= v; |
|
} |
|
} |
|
} |
|
|
|
emms_c(); |
|
|
|
if(s->last_picture.data[0]) |
|
avctx->release_buffer(avctx, &s->last_picture); |
|
|
|
if(!(s->avctx->debug&2048)) |
|
*picture= s->current_picture; |
|
else |
|
*picture= s->mconly_picture; |
|
|
|
*data_size = sizeof(AVFrame); |
|
|
|
bytes_read= get_cabac_terminate(c); |
|
if(bytes_read ==0) av_log(s->avctx, AV_LOG_ERROR, "error at end of frame\n"); |
|
|
|
return bytes_read; |
|
} |
|
|
|
static int decode_end(AVCodecContext *avctx) |
|
{ |
|
SnowContext *s = avctx->priv_data; |
|
|
|
common_end(s); |
|
|
|
return 0; |
|
} |
|
|
|
AVCodec snow_decoder = { |
|
"snow", |
|
CODEC_TYPE_VIDEO, |
|
CODEC_ID_SNOW, |
|
sizeof(SnowContext), |
|
decode_init, |
|
NULL, |
|
decode_end, |
|
decode_frame, |
|
0 /*CODEC_CAP_DR1*/ /*| CODEC_CAP_DRAW_HORIZ_BAND*/, |
|
NULL |
|
}; |
|
|
|
AVCodec snow_encoder = { |
|
"snow", |
|
CODEC_TYPE_VIDEO, |
|
CODEC_ID_SNOW, |
|
sizeof(SnowContext), |
|
encode_init, |
|
encode_frame, |
|
encode_end, |
|
}; |
|
|
|
|
|
#if 0 |
|
#undef malloc |
|
#undef free |
|
#undef printf |
|
|
|
int main(){ |
|
int width=256; |
|
int height=256; |
|
int buffer[2][width*height]; |
|
SnowContext s; |
|
int i; |
|
s.spatial_decomposition_count=6; |
|
s.spatial_decomposition_type=1; |
|
|
|
printf("testing 5/3 DWT\n"); |
|
for(i=0; i<width*height; i++) |
|
buffer[0][i]= buffer[1][i]= random()%54321 - 12345; |
|
|
|
spatial_dwt(&s, buffer[0], width, height, width); |
|
spatial_idwt(&s, buffer[0], width, height, width); |
|
|
|
for(i=0; i<width*height; i++) |
|
if(buffer[0][i]!= buffer[1][i]) printf("fsck: %d %d %d\n",i, buffer[0][i], buffer[1][i]); |
|
|
|
printf("testing 9/7 DWT\n"); |
|
s.spatial_decomposition_type=0; |
|
for(i=0; i<width*height; i++) |
|
buffer[0][i]= buffer[1][i]= random()%54321 - 12345; |
|
|
|
spatial_dwt(&s, buffer[0], width, height, width); |
|
spatial_idwt(&s, buffer[0], width, height, width); |
|
|
|
for(i=0; i<width*height; i++) |
|
if(buffer[0][i]!= buffer[1][i]) printf("fsck: %d %d %d\n",i, buffer[0][i], buffer[1][i]); |
|
|
|
printf("testing AC coder\n"); |
|
memset(s.header_state, 0, sizeof(s.header_state)); |
|
ff_init_cabac_encoder(&s.c, buffer[0], 256*256); |
|
ff_init_cabac_states(&s.c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64); |
|
|
|
for(i=-256; i<256; i++){ |
|
START_TIMER |
|
put_symbol(&s.c, s.header_state, i*i*i/3*ABS(i), 1); |
|
STOP_TIMER("put_symbol") |
|
} |
|
put_cabac_terminate(&s.c, 1); |
|
|
|
memset(s.header_state, 0, sizeof(s.header_state)); |
|
ff_init_cabac_decoder(&s.c, buffer[0], 256*256); |
|
ff_init_cabac_states(&s.c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64); |
|
|
|
for(i=-256; i<256; i++){ |
|
int j; |
|
START_TIMER |
|
j= get_symbol(&s.c, s.header_state, 1); |
|
STOP_TIMER("get_symbol") |
|
if(j!=i*i*i/3*ABS(i)) printf("fsck: %d != %d\n", i, j); |
|
} |
|
{ |
|
int level, orientation, x, y; |
|
int64_t errors[8][4]; |
|
int64_t g=0; |
|
|
|
memset(errors, 0, sizeof(errors)); |
|
s.spatial_decomposition_count=3; |
|
s.spatial_decomposition_type=0; |
|
for(level=0; level<s.spatial_decomposition_count; level++){ |
|
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
|
int w= width >> (s.spatial_decomposition_count-level); |
|
int h= height >> (s.spatial_decomposition_count-level); |
|
int stride= width << (s.spatial_decomposition_count-level); |
|
DWTELEM *buf= buffer[0]; |
|
int64_t error=0; |
|
|
|
if(orientation&1) buf+=w; |
|
if(orientation>1) buf+=stride>>1; |
|
|
|
memset(buffer[0], 0, sizeof(int)*width*height); |
|
buf[w/2 + h/2*stride]= 256*256; |
|
spatial_idwt(&s, buffer[0], width, height, width); |
|
for(y=0; y<height; y++){ |
|
for(x=0; x<width; x++){ |
|
int64_t d= buffer[0][x + y*width]; |
|
error += d*d; |
|
if(ABS(width/2-x)<9 && ABS(height/2-y)<9 && level==2) printf("%8lld ", d); |
|
} |
|
if(ABS(height/2-y)<9 && level==2) printf("\n"); |
|
} |
|
error= (int)(sqrt(error)+0.5); |
|
errors[level][orientation]= error; |
|
if(g) g=ff_gcd(g, error); |
|
else g= error; |
|
} |
|
} |
|
printf("static int const visual_weight[][4]={\n"); |
|
for(level=0; level<s.spatial_decomposition_count; level++){ |
|
printf(" {"); |
|
for(orientation=0; orientation<4; orientation++){ |
|
printf("%8lld,", errors[level][orientation]/g); |
|
} |
|
printf("},\n"); |
|
} |
|
printf("};\n"); |
|
{ |
|
int level=2; |
|
int orientation=3; |
|
int w= width >> (s.spatial_decomposition_count-level); |
|
int h= height >> (s.spatial_decomposition_count-level); |
|
int stride= width << (s.spatial_decomposition_count-level); |
|
DWTELEM *buf= buffer[0]; |
|
int64_t error=0; |
|
|
|
buf+=w; |
|
buf+=stride>>1; |
|
|
|
memset(buffer[0], 0, sizeof(int)*width*height); |
|
#if 1 |
|
for(y=0; y<height; y++){ |
|
for(x=0; x<width; x++){ |
|
int tab[4]={0,2,3,1}; |
|
buffer[0][x+width*y]= 256*256*tab[(x&1) + 2*(y&1)]; |
|
} |
|
} |
|
spatial_dwt(&s, buffer[0], width, height, width); |
|
#else |
|
for(y=0; y<h; y++){ |
|
for(x=0; x<w; x++){ |
|
buf[x + y*stride ]=169; |
|
buf[x + y*stride-w]=64; |
|
} |
|
} |
|
spatial_idwt(&s, buffer[0], width, height, width); |
|
#endif |
|
for(y=0; y<height; y++){ |
|
for(x=0; x<width; x++){ |
|
int64_t d= buffer[0][x + y*width]; |
|
error += d*d; |
|
if(ABS(width/2-x)<9 && ABS(height/2-y)<9) printf("%8lld ", d); |
|
} |
|
if(ABS(height/2-y)<9) printf("\n"); |
|
} |
|
} |
|
|
|
} |
|
return 0; |
|
} |
|
#endif |
|
|
|
|