ffmpeg / libavcodec / snow.c @ d23e3e5f
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/*
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* Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/intmath.h" |
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#include "avcodec.h" |
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#include "dsputil.h" |
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#include "dwt.h" |
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#include "snow.h" |
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#include "rangecoder.h" |
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#include "mathops.h" |
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#include "mpegvideo.h" |
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#include "h263.h" |
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#undef NDEBUG
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#include <assert.h> |
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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 quant3bA[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,-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, |
136 |
-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, |
137 |
-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, |
139 |
-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, |
140 |
-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, |
148 |
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
149 |
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
150 |
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
151 |
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
152 |
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
153 |
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
154 |
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
155 |
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
156 |
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
157 |
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
158 |
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-4,-4, |
159 |
-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, |
160 |
-4,-4,-4,-4,-4,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-1, |
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}; |
162 |
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, |
166 |
5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, |
167 |
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, |
168 |
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, |
169 |
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, |
170 |
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, |
171 |
-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, |
172 |
-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, |
173 |
-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, |
174 |
-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, |
175 |
-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-5, |
176 |
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
177 |
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, |
178 |
-4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3,-2,-2,-1, |
179 |
}; |
180 |
|
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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,
|
184 |
0, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0,
|
185 |
0, 0, 0, 4, 4, 4, 4, 8, 8, 12, 12, 12, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 8, 8, 4, 4, 4, 4, 0, 0, 0,
|
186 |
0, 0, 4, 4, 8, 8, 12, 16, 16, 20, 24, 24, 28, 28, 32, 32, 32, 32, 28, 28, 24, 24, 20, 16, 16, 12, 8, 8, 4, 4, 0, 0,
|
187 |
0, 0, 4, 8, 8, 12, 16, 24, 28, 32, 36, 40, 44, 48, 48, 48, 48, 48, 48, 44, 40, 36, 32, 28, 24, 16, 12, 8, 8, 4, 0, 0,
|
188 |
0, 4, 4, 8, 12, 20, 24, 32, 40, 44, 52, 56, 60, 64, 68, 72, 72, 68, 64, 60, 56, 52, 44, 40, 32, 24, 20, 12, 8, 4, 4, 0,
|
189 |
0, 4, 4, 12, 16, 24, 32, 40, 52, 60, 68, 76, 80, 88, 88, 92, 92, 88, 88, 80, 76, 68, 60, 52, 40, 32, 24, 16, 12, 4, 4, 0,
|
190 |
0, 4, 8, 16, 24, 32, 40, 52, 64, 76, 84, 92,100,108,112,116,116,112,108,100, 92, 84, 76, 64, 52, 40, 32, 24, 16, 8, 4, 0,
|
191 |
0, 4, 8, 16, 28, 40, 52, 64, 76, 88,100,112,124,132,136,140,140,136,132,124,112,100, 88, 76, 64, 52, 40, 28, 16, 8, 4, 0,
|
192 |
0, 4, 12, 20, 32, 44, 60, 76, 88,104,120,132,144,152,160,164,164,160,152,144,132,120,104, 88, 76, 60, 44, 32, 20, 12, 4, 0,
|
193 |
0, 4, 12, 24, 36, 48, 68, 84,100,120,136,152,164,176,180,184,184,180,176,164,152,136,120,100, 84, 68, 48, 36, 24, 12, 4, 0,
|
194 |
0, 4, 12, 24, 40, 56, 76, 92,112,132,152,168,180,192,204,208,208,204,192,180,168,152,132,112, 92, 76, 56, 40, 24, 12, 4, 0,
|
195 |
0, 4, 16, 28, 44, 60, 80,100,124,144,164,180,196,208,220,224,224,220,208,196,180,164,144,124,100, 80, 60, 44, 28, 16, 4, 0,
|
196 |
0, 8, 16, 28, 48, 64, 88,108,132,152,176,192,208,224,232,240,240,232,224,208,192,176,152,132,108, 88, 64, 48, 28, 16, 8, 0,
|
197 |
0, 4, 16, 32, 48, 68, 88,112,136,160,180,204,220,232,244,248,248,244,232,220,204,180,160,136,112, 88, 68, 48, 32, 16, 4, 0,
|
198 |
1, 8, 16, 32, 48, 72, 92,116,140,164,184,208,224,240,248,255,255,248,240,224,208,184,164,140,116, 92, 72, 48, 32, 16, 8, 1,
|
199 |
1, 8, 16, 32, 48, 72, 92,116,140,164,184,208,224,240,248,255,255,248,240,224,208,184,164,140,116, 92, 72, 48, 32, 16, 8, 1,
|
200 |
0, 4, 16, 32, 48, 68, 88,112,136,160,180,204,220,232,244,248,248,244,232,220,204,180,160,136,112, 88, 68, 48, 32, 16, 4, 0,
|
201 |
0, 8, 16, 28, 48, 64, 88,108,132,152,176,192,208,224,232,240,240,232,224,208,192,176,152,132,108, 88, 64, 48, 28, 16, 8, 0,
|
202 |
0, 4, 16, 28, 44, 60, 80,100,124,144,164,180,196,208,220,224,224,220,208,196,180,164,144,124,100, 80, 60, 44, 28, 16, 4, 0,
|
203 |
0, 4, 12, 24, 40, 56, 76, 92,112,132,152,168,180,192,204,208,208,204,192,180,168,152,132,112, 92, 76, 56, 40, 24, 12, 4, 0,
|
204 |
0, 4, 12, 24, 36, 48, 68, 84,100,120,136,152,164,176,180,184,184,180,176,164,152,136,120,100, 84, 68, 48, 36, 24, 12, 4, 0,
|
205 |
0, 4, 12, 20, 32, 44, 60, 76, 88,104,120,132,144,152,160,164,164,160,152,144,132,120,104, 88, 76, 60, 44, 32, 20, 12, 4, 0,
|
206 |
0, 4, 8, 16, 28, 40, 52, 64, 76, 88,100,112,124,132,136,140,140,136,132,124,112,100, 88, 76, 64, 52, 40, 28, 16, 8, 4, 0,
|
207 |
0, 4, 8, 16, 24, 32, 40, 52, 64, 76, 84, 92,100,108,112,116,116,112,108,100, 92, 84, 76, 64, 52, 40, 32, 24, 16, 8, 4, 0,
|
208 |
0, 4, 4, 12, 16, 24, 32, 40, 52, 60, 68, 76, 80, 88, 88, 92, 92, 88, 88, 80, 76, 68, 60, 52, 40, 32, 24, 16, 12, 4, 4, 0,
|
209 |
0, 4, 4, 8, 12, 20, 24, 32, 40, 44, 52, 56, 60, 64, 68, 72, 72, 68, 64, 60, 56, 52, 44, 40, 32, 24, 20, 12, 8, 4, 4, 0,
|
210 |
0, 0, 4, 8, 8, 12, 16, 24, 28, 32, 36, 40, 44, 48, 48, 48, 48, 48, 48, 44, 40, 36, 32, 28, 24, 16, 12, 8, 8, 4, 0, 0,
|
211 |
0, 0, 4, 4, 8, 8, 12, 16, 16, 20, 24, 24, 28, 28, 32, 32, 32, 32, 28, 28, 24, 24, 20, 16, 16, 12, 8, 8, 4, 4, 0, 0,
|
212 |
0, 0, 0, 4, 4, 4, 4, 8, 8, 12, 12, 12, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 8, 8, 4, 4, 4, 4, 0, 0, 0,
|
213 |
0, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0,
|
214 |
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,
|
215 |
//error:0.000022
|
216 |
};
|
217 |
static const uint8_t obmc16[256]={
|
218 |
0, 0, 0, 0, 0, 0, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0,
|
219 |
0, 4, 4, 8, 16, 20, 20, 24, 24, 20, 20, 16, 8, 4, 4, 0,
|
220 |
0, 4, 16, 24, 36, 44, 52, 60, 60, 52, 44, 36, 24, 16, 4, 0,
|
221 |
0, 8, 24, 44, 60, 80, 96,104,104, 96, 80, 60, 44, 24, 8, 0,
|
222 |
0, 16, 36, 60, 92,116,136,152,152,136,116, 92, 60, 36, 16, 0,
|
223 |
0, 20, 44, 80,116,152,180,196,196,180,152,116, 80, 44, 20, 0,
|
224 |
4, 20, 52, 96,136,180,212,228,228,212,180,136, 96, 52, 20, 4,
|
225 |
4, 24, 60,104,152,196,228,248,248,228,196,152,104, 60, 24, 4,
|
226 |
4, 24, 60,104,152,196,228,248,248,228,196,152,104, 60, 24, 4,
|
227 |
4, 20, 52, 96,136,180,212,228,228,212,180,136, 96, 52, 20, 4,
|
228 |
0, 20, 44, 80,116,152,180,196,196,180,152,116, 80, 44, 20, 0,
|
229 |
0, 16, 36, 60, 92,116,136,152,152,136,116, 92, 60, 36, 16, 0,
|
230 |
0, 8, 24, 44, 60, 80, 96,104,104, 96, 80, 60, 44, 24, 8, 0,
|
231 |
0, 4, 16, 24, 36, 44, 52, 60, 60, 52, 44, 36, 24, 16, 4, 0,
|
232 |
0, 4, 4, 8, 16, 20, 20, 24, 24, 20, 20, 16, 8, 4, 4, 0,
|
233 |
0, 0, 0, 0, 0, 0, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0,
|
234 |
//error:0.000033
|
235 |
};
|
236 |
#elif 1 // 64*linear
|
237 |
static const uint8_t obmc32[1024]={ |
238 |
0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, |
239 |
0, 4, 4, 4, 8, 8, 8, 12, 12, 16, 16, 16, 20, 20, 20, 24, 24, 20, 20, 20, 16, 16, 16, 12, 12, 8, 8, 8, 4, 4, 4, 0, |
240 |
0, 4, 8, 8, 12, 12, 16, 20, 20, 24, 28, 28, 32, 32, 36, 40, 40, 36, 32, 32, 28, 28, 24, 20, 20, 16, 12, 12, 8, 8, 4, 0, |
241 |
0, 4, 8, 12, 16, 20, 24, 28, 28, 32, 36, 40, 44, 48, 52, 56, 56, 52, 48, 44, 40, 36, 32, 28, 28, 24, 20, 16, 12, 8, 4, 0, |
242 |
4, 8, 12, 16, 20, 24, 28, 32, 40, 44, 48, 52, 56, 60, 64, 68, 68, 64, 60, 56, 52, 48, 44, 40, 32, 28, 24, 20, 16, 12, 8, 4, |
243 |
4, 8, 12, 20, 24, 32, 36, 40, 48, 52, 56, 64, 68, 76, 80, 84, 84, 80, 76, 68, 64, 56, 52, 48, 40, 36, 32, 24, 20, 12, 8, 4, |
244 |
4, 8, 16, 24, 28, 36, 44, 48, 56, 60, 68, 76, 80, 88, 96,100,100, 96, 88, 80, 76, 68, 60, 56, 48, 44, 36, 28, 24, 16, 8, 4, |
245 |
4, 12, 20, 28, 32, 40, 48, 56, 64, 72, 80, 88, 92,100,108,116,116,108,100, 92, 88, 80, 72, 64, 56, 48, 40, 32, 28, 20, 12, 4, |
246 |
4, 12, 20, 28, 40, 48, 56, 64, 72, 80, 88, 96,108,116,124,132,132,124,116,108, 96, 88, 80, 72, 64, 56, 48, 40, 28, 20, 12, 4, |
247 |
4, 16, 24, 32, 44, 52, 60, 72, 80, 92,100,108,120,128,136,148,148,136,128,120,108,100, 92, 80, 72, 60, 52, 44, 32, 24, 16, 4, |
248 |
4, 16, 28, 36, 48, 56, 68, 80, 88,100,112,120,132,140,152,164,164,152,140,132,120,112,100, 88, 80, 68, 56, 48, 36, 28, 16, 4, |
249 |
4, 16, 28, 40, 52, 64, 76, 88, 96,108,120,132,144,156,168,180,180,168,156,144,132,120,108, 96, 88, 76, 64, 52, 40, 28, 16, 4, |
250 |
8, 20, 32, 44, 56, 68, 80, 92,108,120,132,144,156,168,180,192,192,180,168,156,144,132,120,108, 92, 80, 68, 56, 44, 32, 20, 8, |
251 |
8, 20, 32, 48, 60, 76, 88,100,116,128,140,156,168,184,196,208,208,196,184,168,156,140,128,116,100, 88, 76, 60, 48, 32, 20, 8, |
252 |
8, 20, 36, 52, 64, 80, 96,108,124,136,152,168,180,196,212,224,224,212,196,180,168,152,136,124,108, 96, 80, 64, 52, 36, 20, 8, |
253 |
8, 24, 40, 56, 68, 84,100,116,132,148,164,180,192,208,224,240,240,224,208,192,180,164,148,132,116,100, 84, 68, 56, 40, 24, 8, |
254 |
8, 24, 40, 56, 68, 84,100,116,132,148,164,180,192,208,224,240,240,224,208,192,180,164,148,132,116,100, 84, 68, 56, 40, 24, 8, |
255 |
8, 20, 36, 52, 64, 80, 96,108,124,136,152,168,180,196,212,224,224,212,196,180,168,152,136,124,108, 96, 80, 64, 52, 36, 20, 8, |
256 |
8, 20, 32, 48, 60, 76, 88,100,116,128,140,156,168,184,196,208,208,196,184,168,156,140,128,116,100, 88, 76, 60, 48, 32, 20, 8, |
257 |
8, 20, 32, 44, 56, 68, 80, 92,108,120,132,144,156,168,180,192,192,180,168,156,144,132,120,108, 92, 80, 68, 56, 44, 32, 20, 8, |
258 |
4, 16, 28, 40, 52, 64, 76, 88, 96,108,120,132,144,156,168,180,180,168,156,144,132,120,108, 96, 88, 76, 64, 52, 40, 28, 16, 4, |
259 |
4, 16, 28, 36, 48, 56, 68, 80, 88,100,112,120,132,140,152,164,164,152,140,132,120,112,100, 88, 80, 68, 56, 48, 36, 28, 16, 4, |
260 |
4, 16, 24, 32, 44, 52, 60, 72, 80, 92,100,108,120,128,136,148,148,136,128,120,108,100, 92, 80, 72, 60, 52, 44, 32, 24, 16, 4, |
261 |
4, 12, 20, 28, 40, 48, 56, 64, 72, 80, 88, 96,108,116,124,132,132,124,116,108, 96, 88, 80, 72, 64, 56, 48, 40, 28, 20, 12, 4, |
262 |
4, 12, 20, 28, 32, 40, 48, 56, 64, 72, 80, 88, 92,100,108,116,116,108,100, 92, 88, 80, 72, 64, 56, 48, 40, 32, 28, 20, 12, 4, |
263 |
4, 8, 16, 24, 28, 36, 44, 48, 56, 60, 68, 76, 80, 88, 96,100,100, 96, 88, 80, 76, 68, 60, 56, 48, 44, 36, 28, 24, 16, 8, 4, |
264 |
4, 8, 12, 20, 24, 32, 36, 40, 48, 52, 56, 64, 68, 76, 80, 84, 84, 80, 76, 68, 64, 56, 52, 48, 40, 36, 32, 24, 20, 12, 8, 4, |
265 |
4, 8, 12, 16, 20, 24, 28, 32, 40, 44, 48, 52, 56, 60, 64, 68, 68, 64, 60, 56, 52, 48, 44, 40, 32, 28, 24, 20, 16, 12, 8, 4, |
266 |
0, 4, 8, 12, 16, 20, 24, 28, 28, 32, 36, 40, 44, 48, 52, 56, 56, 52, 48, 44, 40, 36, 32, 28, 28, 24, 20, 16, 12, 8, 4, 0, |
267 |
0, 4, 8, 8, 12, 12, 16, 20, 20, 24, 28, 28, 32, 32, 36, 40, 40, 36, 32, 32, 28, 28, 24, 20, 20, 16, 12, 12, 8, 8, 4, 0, |
268 |
0, 4, 4, 4, 8, 8, 8, 12, 12, 16, 16, 16, 20, 20, 20, 24, 24, 20, 20, 20, 16, 16, 16, 12, 12, 8, 8, 8, 4, 4, 4, 0, |
269 |
0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, |
270 |
//error:0.000020
|
271 |
}; |
272 |
static const uint8_t obmc16[256]={ |
273 |
0, 4, 4, 8, 8, 12, 12, 16, 16, 12, 12, 8, 8, 4, 4, 0, |
274 |
4, 8, 16, 20, 28, 32, 40, 44, 44, 40, 32, 28, 20, 16, 8, 4, |
275 |
4, 16, 24, 36, 44, 56, 64, 76, 76, 64, 56, 44, 36, 24, 16, 4, |
276 |
8, 20, 36, 48, 64, 76, 92,104,104, 92, 76, 64, 48, 36, 20, 8, |
277 |
8, 28, 44, 64, 80,100,116,136,136,116,100, 80, 64, 44, 28, 8, |
278 |
12, 32, 56, 76,100,120,144,164,164,144,120,100, 76, 56, 32, 12, |
279 |
12, 40, 64, 92,116,144,168,196,196,168,144,116, 92, 64, 40, 12, |
280 |
16, 44, 76,104,136,164,196,224,224,196,164,136,104, 76, 44, 16, |
281 |
16, 44, 76,104,136,164,196,224,224,196,164,136,104, 76, 44, 16, |
282 |
12, 40, 64, 92,116,144,168,196,196,168,144,116, 92, 64, 40, 12, |
283 |
12, 32, 56, 76,100,120,144,164,164,144,120,100, 76, 56, 32, 12, |
284 |
8, 28, 44, 64, 80,100,116,136,136,116,100, 80, 64, 44, 28, 8, |
285 |
8, 20, 36, 48, 64, 76, 92,104,104, 92, 76, 64, 48, 36, 20, 8, |
286 |
4, 16, 24, 36, 44, 56, 64, 76, 76, 64, 56, 44, 36, 24, 16, 4, |
287 |
4, 8, 16, 20, 28, 32, 40, 44, 44, 40, 32, 28, 20, 16, 8, 4, |
288 |
0, 4, 4, 8, 8, 12, 12, 16, 16, 12, 12, 8, 8, 4, 4, 0, |
289 |
//error:0.000015
|
290 |
}; |
291 |
#else //64*cos |
292 |
static const uint8_t obmc32[1024]={ |
293 |
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, |
294 |
0, 0, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 8, 4, 4, 8, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, |
295 |
0, 0, 0, 4, 4, 4, 4, 8, 8, 12, 12, 12, 12, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 0, 0, 0, |
296 |
0, 0, 4, 4, 4, 8, 8, 12, 16, 20, 20, 24, 28, 28, 28, 28, 28, 28, 28, 28, 24, 20, 20, 16, 12, 8, 8, 4, 4, 4, 0, 0, |
297 |
0, 0, 4, 4, 8, 12, 16, 20, 24, 28, 36, 40, 44, 44, 48, 48, 48, 48, 44, 44, 40, 36, 28, 24, 20, 16, 12, 8, 4, 4, 0, 0, |
298 |
0, 0, 4, 8, 12, 20, 24, 32, 36, 44, 48, 56, 60, 64, 68, 68, 68, 68, 64, 60, 56, 48, 44, 36, 32, 24, 20, 12, 8, 4, 0, 0, |
299 |
0, 4, 4, 8, 16, 24, 32, 40, 48, 60, 68, 76, 80, 84, 88, 92, 92, 88, 84, 80, 76, 68, 60, 48, 40, 32, 24, 16, 8, 4, 4, 0, |
300 |
0, 4, 8, 12, 20, 32, 40, 52, 64, 76, 84, 96,104,108,112,116,116,112,108,104, 96, 84, 76, 64, 52, 40, 32, 20, 12, 8, 4, 0, |
301 |
0, 4, 8, 16, 24, 36, 48, 64, 76, 92,104,116,124,132,136,140,140,136,132,124,116,104, 92, 76, 64, 48, 36, 24, 16, 8, 4, 0, |
302 |
0, 4, 12, 20, 28, 44, 60, 76, 92,104,120,136,148,156,160,164,164,160,156,148,136,120,104, 92, 76, 60, 44, 28, 20, 12, 4, 0, |
303 |
0, 4, 12, 20, 36, 48, 68, 84,104,120,140,152,168,176,184,188,188,184,176,168,152,140,120,104, 84, 68, 48, 36, 20, 12, 4, 0, |
304 |
0, 4, 12, 24, 36, 56, 76, 96,116,136,152,172,184,196,204,208,208,204,196,184,172,152,136,116, 96, 76, 56, 36, 24, 12, 4, 0, |
305 |
0, 4, 12, 24, 44, 60, 80,104,124,148,168,184,200,212,224,228,228,224,212,200,184,168,148,124,104, 80, 60, 44, 24, 12, 4, 0, |
306 |
0, 4, 12, 28, 44, 64, 84,108,132,156,176,196,212,228,236,240,240,236,228,212,196,176,156,132,108, 84, 64, 44, 28, 12, 4, 0, |
307 |
0, 4, 16, 28, 48, 68, 88,112,136,160,184,204,224,236,244,252,252,244,236,224,204,184,160,136,112, 88, 68, 48, 28, 16, 4, 0, |
308 |
1, 4, 16, 28, 48, 68, 92,116,140,164,188,208,228,240,252,255,255,252,240,228,208,188,164,140,116, 92, 68, 48, 28, 16, 4, 1, |
309 |
1, 4, 16, 28, 48, 68, 92,116,140,164,188,208,228,240,252,255,255,252,240,228,208,188,164,140,116, 92, 68, 48, 28, 16, 4, 1, |
310 |
0, 4, 16, 28, 48, 68, 88,112,136,160,184,204,224,236,244,252,252,244,236,224,204,184,160,136,112, 88, 68, 48, 28, 16, 4, 0, |
311 |
0, 4, 12, 28, 44, 64, 84,108,132,156,176,196,212,228,236,240,240,236,228,212,196,176,156,132,108, 84, 64, 44, 28, 12, 4, 0, |
312 |
0, 4, 12, 24, 44, 60, 80,104,124,148,168,184,200,212,224,228,228,224,212,200,184,168,148,124,104, 80, 60, 44, 24, 12, 4, 0, |
313 |
0, 4, 12, 24, 36, 56, 76, 96,116,136,152,172,184,196,204,208,208,204,196,184,172,152,136,116, 96, 76, 56, 36, 24, 12, 4, 0, |
314 |
0, 4, 12, 20, 36, 48, 68, 84,104,120,140,152,168,176,184,188,188,184,176,168,152,140,120,104, 84, 68, 48, 36, 20, 12, 4, 0, |
315 |
0, 4, 12, 20, 28, 44, 60, 76, 92,104,120,136,148,156,160,164,164,160,156,148,136,120,104, 92, 76, 60, 44, 28, 20, 12, 4, 0, |
316 |
0, 4, 8, 16, 24, 36, 48, 64, 76, 92,104,116,124,132,136,140,140,136,132,124,116,104, 92, 76, 64, 48, 36, 24, 16, 8, 4, 0, |
317 |
0, 4, 8, 12, 20, 32, 40, 52, 64, 76, 84, 96,104,108,112,116,116,112,108,104, 96, 84, 76, 64, 52, 40, 32, 20, 12, 8, 4, 0, |
318 |
0, 4, 4, 8, 16, 24, 32, 40, 48, 60, 68, 76, 80, 84, 88, 92, 92, 88, 84, 80, 76, 68, 60, 48, 40, 32, 24, 16, 8, 4, 4, 0, |
319 |
0, 0, 4, 8, 12, 20, 24, 32, 36, 44, 48, 56, 60, 64, 68, 68, 68, 68, 64, 60, 56, 48, 44, 36, 32, 24, 20, 12, 8, 4, 0, 0, |
320 |
0, 0, 4, 4, 8, 12, 16, 20, 24, 28, 36, 40, 44, 44, 48, 48, 48, 48, 44, 44, 40, 36, 28, 24, 20, 16, 12, 8, 4, 4, 0, 0, |
321 |
0, 0, 4, 4, 4, 8, 8, 12, 16, 20, 20, 24, 28, 28, 28, 28, 28, 28, 28, 28, 24, 20, 20, 16, 12, 8, 8, 4, 4, 4, 0, 0, |
322 |
0, 0, 0, 4, 4, 4, 4, 8, 8, 12, 12, 12, 12, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 0, 0, 0, |
323 |
0, 0, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 8, 4, 4, 8, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, |
324 |
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, |
325 |
//error:0.000022
|
326 |
}; |
327 |
static const uint8_t obmc16[256]={ |
328 |
0, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, |
329 |
0, 0, 4, 8, 12, 16, 20, 20, 20, 20, 16, 12, 8, 4, 0, 0, |
330 |
0, 4, 12, 24, 32, 44, 52, 56, 56, 52, 44, 32, 24, 12, 4, 0, |
331 |
0, 8, 24, 40, 60, 80, 96,104,104, 96, 80, 60, 40, 24, 8, 0, |
332 |
0, 12, 32, 64, 92,120,140,152,152,140,120, 92, 64, 32, 12, 0, |
333 |
4, 16, 44, 80,120,156,184,196,196,184,156,120, 80, 44, 16, 4, |
334 |
4, 20, 52, 96,140,184,216,232,232,216,184,140, 96, 52, 20, 4, |
335 |
0, 20, 56,104,152,196,232,252,252,232,196,152,104, 56, 20, 0, |
336 |
0, 20, 56,104,152,196,232,252,252,232,196,152,104, 56, 20, 0, |
337 |
4, 20, 52, 96,140,184,216,232,232,216,184,140, 96, 52, 20, 4, |
338 |
4, 16, 44, 80,120,156,184,196,196,184,156,120, 80, 44, 16, 4, |
339 |
0, 12, 32, 64, 92,120,140,152,152,140,120, 92, 64, 32, 12, 0, |
340 |
0, 8, 24, 40, 60, 80, 96,104,104, 96, 80, 60, 40, 24, 8, 0, |
341 |
0, 4, 12, 24, 32, 44, 52, 56, 56, 52, 44, 32, 24, 12, 4, 0, |
342 |
0, 0, 4, 8, 12, 16, 20, 20, 20, 20, 16, 12, 8, 4, 0, 0, |
343 |
0, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, |
344 |
//error:0.000022
|
345 |
}; |
346 |
#endif /* 0 */ |
347 |
|
348 |
//linear *64
|
349 |
static const uint8_t obmc8[64]={ |
350 |
4, 12, 20, 28, 28, 20, 12, 4, |
351 |
12, 36, 60, 84, 84, 60, 36, 12, |
352 |
20, 60,100,140,140,100, 60, 20, |
353 |
28, 84,140,196,196,140, 84, 28, |
354 |
28, 84,140,196,196,140, 84, 28, |
355 |
20, 60,100,140,140,100, 60, 20, |
356 |
12, 36, 60, 84, 84, 60, 36, 12, |
357 |
4, 12, 20, 28, 28, 20, 12, 4, |
358 |
//error:0.000000
|
359 |
}; |
360 |
|
361 |
//linear *64
|
362 |
static const uint8_t obmc4[16]={ |
363 |
16, 48, 48, 16, |
364 |
48,144,144, 48, |
365 |
48,144,144, 48, |
366 |
16, 48, 48, 16, |
367 |
//error:0.000000
|
368 |
}; |
369 |
|
370 |
static const uint8_t * const obmc_tab[4]={ |
371 |
obmc32, obmc16, obmc8, obmc4 |
372 |
}; |
373 |
|
374 |
static int scale_mv_ref[MAX_REF_FRAMES][MAX_REF_FRAMES]; |
375 |
|
376 |
typedef struct BlockNode{ |
377 |
int16_t mx; |
378 |
int16_t my; |
379 |
uint8_t ref; |
380 |
uint8_t color[3];
|
381 |
uint8_t type; |
382 |
//#define TYPE_SPLIT 1
|
383 |
#define BLOCK_INTRA 1 |
384 |
#define BLOCK_OPT 2 |
385 |
//#define TYPE_NOCOLOR 4
|
386 |
uint8_t level; //FIXME merge into type?
|
387 |
}BlockNode; |
388 |
|
389 |
static const BlockNode null_block= { //FIXME add border maybe |
390 |
.color= {128,128,128}, |
391 |
.mx= 0,
|
392 |
.my= 0,
|
393 |
.ref= 0,
|
394 |
.type= 0,
|
395 |
.level= 0,
|
396 |
}; |
397 |
|
398 |
#define LOG2_MB_SIZE 4 |
399 |
#define MB_SIZE (1<<LOG2_MB_SIZE) |
400 |
#define ENCODER_EXTRA_BITS 4 |
401 |
#define HTAPS_MAX 8 |
402 |
|
403 |
typedef struct x_and_coeff{ |
404 |
int16_t x; |
405 |
uint16_t coeff; |
406 |
} x_and_coeff; |
407 |
|
408 |
typedef struct SubBand{ |
409 |
int level;
|
410 |
int stride;
|
411 |
int width;
|
412 |
int height;
|
413 |
int qlog; ///< log(qscale)/log[2^(1/6)] |
414 |
DWTELEM *buf; |
415 |
IDWTELEM *ibuf; |
416 |
int buf_x_offset;
|
417 |
int buf_y_offset;
|
418 |
int stride_line; ///< Stride measured in lines, not pixels. |
419 |
x_and_coeff * x_coeff; |
420 |
struct SubBand *parent;
|
421 |
uint8_t state[/*7*2*/ 7 + 512][32]; |
422 |
}SubBand; |
423 |
|
424 |
typedef struct Plane{ |
425 |
int width;
|
426 |
int height;
|
427 |
SubBand band[MAX_DECOMPOSITIONS][4];
|
428 |
|
429 |
int htaps;
|
430 |
int8_t hcoeff[HTAPS_MAX/2];
|
431 |
int diag_mc;
|
432 |
int fast_mc;
|
433 |
|
434 |
int last_htaps;
|
435 |
int8_t last_hcoeff[HTAPS_MAX/2];
|
436 |
int last_diag_mc;
|
437 |
}Plane; |
438 |
|
439 |
typedef struct SnowContext{ |
440 |
|
441 |
AVCodecContext *avctx; |
442 |
RangeCoder c; |
443 |
DSPContext dsp; |
444 |
DWTContext dwt; |
445 |
AVFrame new_picture; |
446 |
AVFrame input_picture; ///< new_picture with the internal linesizes
|
447 |
AVFrame current_picture; |
448 |
AVFrame last_picture[MAX_REF_FRAMES]; |
449 |
uint8_t *halfpel_plane[MAX_REF_FRAMES][4][4]; |
450 |
AVFrame mconly_picture; |
451 |
// uint8_t q_context[16];
|
452 |
uint8_t header_state[32];
|
453 |
uint8_t block_state[128 + 32*128]; |
454 |
int keyframe;
|
455 |
int always_reset;
|
456 |
int version;
|
457 |
int spatial_decomposition_type;
|
458 |
int last_spatial_decomposition_type;
|
459 |
int temporal_decomposition_type;
|
460 |
int spatial_decomposition_count;
|
461 |
int last_spatial_decomposition_count;
|
462 |
int temporal_decomposition_count;
|
463 |
int max_ref_frames;
|
464 |
int ref_frames;
|
465 |
int16_t (*ref_mvs[MAX_REF_FRAMES])[2];
|
466 |
uint32_t *ref_scores[MAX_REF_FRAMES]; |
467 |
DWTELEM *spatial_dwt_buffer; |
468 |
IDWTELEM *spatial_idwt_buffer; |
469 |
int colorspace_type;
|
470 |
int chroma_h_shift;
|
471 |
int chroma_v_shift;
|
472 |
int spatial_scalability;
|
473 |
int qlog;
|
474 |
int last_qlog;
|
475 |
int lambda;
|
476 |
int lambda2;
|
477 |
int pass1_rc;
|
478 |
int mv_scale;
|
479 |
int last_mv_scale;
|
480 |
int qbias;
|
481 |
int last_qbias;
|
482 |
#define QBIAS_SHIFT 3 |
483 |
int b_width;
|
484 |
int b_height;
|
485 |
int block_max_depth;
|
486 |
int last_block_max_depth;
|
487 |
Plane plane[MAX_PLANES]; |
488 |
BlockNode *block; |
489 |
#define ME_CACHE_SIZE 1024 |
490 |
int me_cache[ME_CACHE_SIZE];
|
491 |
int me_cache_generation;
|
492 |
slice_buffer sb; |
493 |
|
494 |
MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to eventually make the motion estimation independent of MpegEncContext, so this will be removed then (FIXME/XXX)
|
495 |
|
496 |
uint8_t *scratchbuf; |
497 |
}SnowContext; |
498 |
|
499 |
#ifdef __sgi
|
500 |
// Avoid a name clash on SGI IRIX
|
501 |
#undef qexp
|
502 |
#endif
|
503 |
#define QEXPSHIFT (7-FRAC_BITS+8) //FIXME try to change this to 0 |
504 |
static uint8_t qexp[QROOT];
|
505 |
|
506 |
static inline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed){ |
507 |
int i;
|
508 |
|
509 |
if(v){
|
510 |
const int a= FFABS(v); |
511 |
const int e= av_log2(a); |
512 |
#if 1 |
513 |
const int el= FFMIN(e, 10); |
514 |
put_rac(c, state+0, 0); |
515 |
|
516 |
for(i=0; i<el; i++){ |
517 |
put_rac(c, state+1+i, 1); //1..10 |
518 |
} |
519 |
for(; i<e; i++){
|
520 |
put_rac(c, state+1+9, 1); //1..10 |
521 |
} |
522 |
put_rac(c, state+1+FFMIN(i,9), 0); |
523 |
|
524 |
for(i=e-1; i>=el; i--){ |
525 |
put_rac(c, state+22+9, (a>>i)&1); //22..31 |
526 |
} |
527 |
for(; i>=0; i--){ |
528 |
put_rac(c, state+22+i, (a>>i)&1); //22..31 |
529 |
} |
530 |
|
531 |
if(is_signed)
|
532 |
put_rac(c, state+11 + el, v < 0); //11..21 |
533 |
#else
|
534 |
|
535 |
put_rac(c, state+0, 0); |
536 |
if(e<=9){ |
537 |
for(i=0; i<e; i++){ |
538 |
put_rac(c, state+1+i, 1); //1..10 |
539 |
} |
540 |
put_rac(c, state+1+i, 0); |
541 |
|
542 |
for(i=e-1; i>=0; i--){ |
543 |
put_rac(c, state+22+i, (a>>i)&1); //22..31 |
544 |
} |
545 |
|
546 |
if(is_signed)
|
547 |
put_rac(c, state+11 + e, v < 0); //11..21 |
548 |
}else{
|
549 |
for(i=0; i<e; i++){ |
550 |
put_rac(c, state+1+FFMIN(i,9), 1); //1..10 |
551 |
} |
552 |
put_rac(c, state+1+9, 0); |
553 |
|
554 |
for(i=e-1; i>=0; i--){ |
555 |
put_rac(c, state+22+FFMIN(i,9), (a>>i)&1); //22..31 |
556 |
} |
557 |
|
558 |
if(is_signed)
|
559 |
put_rac(c, state+11 + 10, v < 0); //11..21 |
560 |
} |
561 |
#endif /* 1 */ |
562 |
}else{
|
563 |
put_rac(c, state+0, 1); |
564 |
} |
565 |
} |
566 |
|
567 |
static inline int get_symbol(RangeCoder *c, uint8_t *state, int is_signed){ |
568 |
if(get_rac(c, state+0)) |
569 |
return 0; |
570 |
else{
|
571 |
int i, e, a;
|
572 |
e= 0;
|
573 |
while(get_rac(c, state+1 + FFMIN(e,9))){ //1..10 |
574 |
e++; |
575 |
} |
576 |
|
577 |
a= 1;
|
578 |
for(i=e-1; i>=0; i--){ |
579 |
a += a + get_rac(c, state+22 + FFMIN(i,9)); //22..31 |
580 |
} |
581 |
|
582 |
e= -(is_signed && get_rac(c, state+11 + FFMIN(e,10))); //11..21 |
583 |
return (a^e)-e;
|
584 |
} |
585 |
} |
586 |
|
587 |
static inline void put_symbol2(RangeCoder *c, uint8_t *state, int v, int log2){ |
588 |
int i;
|
589 |
int r= log2>=0 ? 1<<log2 : 1; |
590 |
|
591 |
assert(v>=0);
|
592 |
assert(log2>=-4);
|
593 |
|
594 |
while(v >= r){
|
595 |
put_rac(c, state+4+log2, 1); |
596 |
v -= r; |
597 |
log2++; |
598 |
if(log2>0) r+=r; |
599 |
} |
600 |
put_rac(c, state+4+log2, 0); |
601 |
|
602 |
for(i=log2-1; i>=0; i--){ |
603 |
put_rac(c, state+31-i, (v>>i)&1); |
604 |
} |
605 |
} |
606 |
|
607 |
static inline int get_symbol2(RangeCoder *c, uint8_t *state, int log2){ |
608 |
int i;
|
609 |
int r= log2>=0 ? 1<<log2 : 1; |
610 |
int v=0; |
611 |
|
612 |
assert(log2>=-4);
|
613 |
|
614 |
while(get_rac(c, state+4+log2)){ |
615 |
v+= r; |
616 |
log2++; |
617 |
if(log2>0) r+=r; |
618 |
} |
619 |
|
620 |
for(i=log2-1; i>=0; i--){ |
621 |
v+= get_rac(c, state+31-i)<<i;
|
622 |
} |
623 |
|
624 |
return v;
|
625 |
} |
626 |
|
627 |
static inline void unpack_coeffs(SnowContext *s, SubBand *b, SubBand * parent, int orientation){ |
628 |
const int w= b->width; |
629 |
const int h= b->height; |
630 |
int x,y;
|
631 |
|
632 |
int run, runs;
|
633 |
x_and_coeff *xc= b->x_coeff; |
634 |
x_and_coeff *prev_xc= NULL;
|
635 |
x_and_coeff *prev2_xc= xc; |
636 |
x_and_coeff *parent_xc= parent ? parent->x_coeff : NULL;
|
637 |
x_and_coeff *prev_parent_xc= parent_xc; |
638 |
|
639 |
runs= get_symbol2(&s->c, b->state[30], 0); |
640 |
if(runs-- > 0) run= get_symbol2(&s->c, b->state[1], 3); |
641 |
else run= INT_MAX;
|
642 |
|
643 |
for(y=0; y<h; y++){ |
644 |
int v=0; |
645 |
int lt=0, t=0, rt=0; |
646 |
|
647 |
if(y && prev_xc->x == 0){ |
648 |
rt= prev_xc->coeff; |
649 |
} |
650 |
for(x=0; x<w; x++){ |
651 |
int p=0; |
652 |
const int l= v; |
653 |
|
654 |
lt= t; t= rt; |
655 |
|
656 |
if(y){
|
657 |
if(prev_xc->x <= x)
|
658 |
prev_xc++; |
659 |
if(prev_xc->x == x + 1) |
660 |
rt= prev_xc->coeff; |
661 |
else
|
662 |
rt=0;
|
663 |
} |
664 |
if(parent_xc){
|
665 |
if(x>>1 > parent_xc->x){ |
666 |
parent_xc++; |
667 |
} |
668 |
if(x>>1 == parent_xc->x){ |
669 |
p= parent_xc->coeff; |
670 |
} |
671 |
} |
672 |
if(/*ll|*/l|lt|t|rt|p){ |
673 |
int context= av_log2(/*FFABS(ll) + */3*(l>>1) + (lt>>1) + (t&~1) + (rt>>1) + (p>>1)); |
674 |
|
675 |
v=get_rac(&s->c, &b->state[0][context]);
|
676 |
if(v){
|
677 |
v= 2*(get_symbol2(&s->c, b->state[context + 2], context-4) + 1); |
678 |
v+=get_rac(&s->c, &b->state[0][16 + 1 + 3 + quant3bA[l&0xFF] + 3*quant3bA[t&0xFF]]); |
679 |
|
680 |
xc->x=x; |
681 |
(xc++)->coeff= v; |
682 |
} |
683 |
}else{
|
684 |
if(!run){
|
685 |
if(runs-- > 0) run= get_symbol2(&s->c, b->state[1], 3); |
686 |
else run= INT_MAX;
|
687 |
v= 2*(get_symbol2(&s->c, b->state[0 + 2], 0-4) + 1); |
688 |
v+=get_rac(&s->c, &b->state[0][16 + 1 + 3]); |
689 |
|
690 |
xc->x=x; |
691 |
(xc++)->coeff= v; |
692 |
}else{
|
693 |
int max_run;
|
694 |
run--; |
695 |
v=0;
|
696 |
|
697 |
if(y) max_run= FFMIN(run, prev_xc->x - x - 2); |
698 |
else max_run= FFMIN(run, w-x-1); |
699 |
if(parent_xc)
|
700 |
max_run= FFMIN(max_run, 2*parent_xc->x - x - 1); |
701 |
x+= max_run; |
702 |
run-= max_run; |
703 |
} |
704 |
} |
705 |
} |
706 |
(xc++)->x= w+1; //end marker |
707 |
prev_xc= prev2_xc; |
708 |
prev2_xc= xc; |
709 |
|
710 |
if(parent_xc){
|
711 |
if(y&1){ |
712 |
while(parent_xc->x != parent->width+1) |
713 |
parent_xc++; |
714 |
parent_xc++; |
715 |
prev_parent_xc= parent_xc; |
716 |
}else{
|
717 |
parent_xc= prev_parent_xc; |
718 |
} |
719 |
} |
720 |
} |
721 |
|
722 |
(xc++)->x= w+1; //end marker |
723 |
} |
724 |
|
725 |
static inline void decode_subband_slice_buffered(SnowContext *s, SubBand *b, slice_buffer * sb, int start_y, int h, int save_state[1]){ |
726 |
const int w= b->width; |
727 |
int y;
|
728 |
const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); |
729 |
int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); |
730 |
int qadd= (s->qbias*qmul)>>QBIAS_SHIFT;
|
731 |
int new_index = 0; |
732 |
|
733 |
if(b->ibuf == s->spatial_idwt_buffer || s->qlog == LOSSLESS_QLOG){
|
734 |
qadd= 0;
|
735 |
qmul= 1<<QEXPSHIFT;
|
736 |
} |
737 |
|
738 |
/* If we are on the second or later slice, restore our index. */
|
739 |
if (start_y != 0) |
740 |
new_index = save_state[0];
|
741 |
|
742 |
|
743 |
for(y=start_y; y<h; y++){
|
744 |
int x = 0; |
745 |
int v;
|
746 |
IDWTELEM * line = slice_buffer_get_line(sb, y * b->stride_line + b->buf_y_offset) + b->buf_x_offset; |
747 |
memset(line, 0, b->width*sizeof(IDWTELEM)); |
748 |
v = b->x_coeff[new_index].coeff; |
749 |
x = b->x_coeff[new_index++].x; |
750 |
while(x < w){
|
751 |
register int t= ( (v>>1)*qmul + qadd)>>QEXPSHIFT; |
752 |
register int u= -(v&1); |
753 |
line[x] = (t^u) - u; |
754 |
|
755 |
v = b->x_coeff[new_index].coeff; |
756 |
x = b->x_coeff[new_index++].x; |
757 |
} |
758 |
} |
759 |
|
760 |
/* Save our variables for the next slice. */
|
761 |
save_state[0] = new_index;
|
762 |
|
763 |
return;
|
764 |
} |
765 |
|
766 |
static void reset_contexts(SnowContext *s){ //FIXME better initial contexts |
767 |
int plane_index, level, orientation;
|
768 |
|
769 |
for(plane_index=0; plane_index<3; plane_index++){ |
770 |
for(level=0; level<MAX_DECOMPOSITIONS; level++){ |
771 |
for(orientation=level ? 1:0; orientation<4; orientation++){ |
772 |
memset(s->plane[plane_index].band[level][orientation].state, MID_STATE, sizeof(s->plane[plane_index].band[level][orientation].state));
|
773 |
} |
774 |
} |
775 |
} |
776 |
memset(s->header_state, MID_STATE, sizeof(s->header_state));
|
777 |
memset(s->block_state, MID_STATE, sizeof(s->block_state));
|
778 |
} |
779 |
|
780 |
static int alloc_blocks(SnowContext *s){ |
781 |
int w= -((-s->avctx->width )>>LOG2_MB_SIZE);
|
782 |
int h= -((-s->avctx->height)>>LOG2_MB_SIZE);
|
783 |
|
784 |
s->b_width = w; |
785 |
s->b_height= h; |
786 |
|
787 |
av_free(s->block); |
788 |
s->block= av_mallocz(w * h * sizeof(BlockNode) << (s->block_max_depth*2)); |
789 |
return 0; |
790 |
} |
791 |
|
792 |
static inline void copy_rac_state(RangeCoder *d, RangeCoder *s){ |
793 |
uint8_t *bytestream= d->bytestream; |
794 |
uint8_t *bytestream_start= d->bytestream_start; |
795 |
*d= *s; |
796 |
d->bytestream= bytestream; |
797 |
d->bytestream_start= bytestream_start; |
798 |
} |
799 |
|
800 |
static inline void set_blocks(SnowContext *s, int level, int x, int y, int l, int cb, int cr, int mx, int my, int ref, int type){ |
801 |
const int w= s->b_width << s->block_max_depth; |
802 |
const int rem_depth= s->block_max_depth - level; |
803 |
const int index= (x + y*w) << rem_depth; |
804 |
const int block_w= 1<<rem_depth; |
805 |
BlockNode block; |
806 |
int i,j;
|
807 |
|
808 |
block.color[0]= l;
|
809 |
block.color[1]= cb;
|
810 |
block.color[2]= cr;
|
811 |
block.mx= mx; |
812 |
block.my= my; |
813 |
block.ref= ref; |
814 |
block.type= type; |
815 |
block.level= level; |
816 |
|
817 |
for(j=0; j<block_w; j++){ |
818 |
for(i=0; i<block_w; i++){ |
819 |
s->block[index + i + j*w]= block; |
820 |
} |
821 |
} |
822 |
} |
823 |
|
824 |
static inline void init_ref(MotionEstContext *c, uint8_t *src[3], uint8_t *ref[3], uint8_t *ref2[3], int x, int y, int ref_index){ |
825 |
const int offset[3]= { |
826 |
y*c-> stride + x, |
827 |
((y*c->uvstride + x)>>1),
|
828 |
((y*c->uvstride + x)>>1),
|
829 |
}; |
830 |
int i;
|
831 |
for(i=0; i<3; i++){ |
832 |
c->src[0][i]= src [i];
|
833 |
c->ref[0][i]= ref [i] + offset[i];
|
834 |
} |
835 |
assert(!ref_index); |
836 |
} |
837 |
|
838 |
static inline void pred_mv(SnowContext *s, int *mx, int *my, int ref, |
839 |
const BlockNode *left, const BlockNode *top, const BlockNode *tr){ |
840 |
if(s->ref_frames == 1){ |
841 |
*mx = mid_pred(left->mx, top->mx, tr->mx); |
842 |
*my = mid_pred(left->my, top->my, tr->my); |
843 |
}else{
|
844 |
const int *scale = scale_mv_ref[ref]; |
845 |
*mx = mid_pred((left->mx * scale[left->ref] + 128) >>8, |
846 |
(top ->mx * scale[top ->ref] + 128) >>8, |
847 |
(tr ->mx * scale[tr ->ref] + 128) >>8); |
848 |
*my = mid_pred((left->my * scale[left->ref] + 128) >>8, |
849 |
(top ->my * scale[top ->ref] + 128) >>8, |
850 |
(tr ->my * scale[tr ->ref] + 128) >>8); |
851 |
} |
852 |
} |
853 |
|
854 |
static av_always_inline int same_block(BlockNode *a, BlockNode *b){ |
855 |
if((a->type&BLOCK_INTRA) && (b->type&BLOCK_INTRA)){
|
856 |
return !((a->color[0] - b->color[0]) | (a->color[1] - b->color[1]) | (a->color[2] - b->color[2])); |
857 |
}else{
|
858 |
return !((a->mx - b->mx) | (a->my - b->my) | (a->ref - b->ref) | ((a->type ^ b->type)&BLOCK_INTRA));
|
859 |
} |
860 |
} |
861 |
|
862 |
static void decode_q_branch(SnowContext *s, int level, int x, int y){ |
863 |
const int w= s->b_width << s->block_max_depth; |
864 |
const int rem_depth= s->block_max_depth - level; |
865 |
const int index= (x + y*w) << rem_depth; |
866 |
int trx= (x+1)<<rem_depth; |
867 |
const BlockNode *left = x ? &s->block[index-1] : &null_block; |
868 |
const BlockNode *top = y ? &s->block[index-w] : &null_block;
|
869 |
const BlockNode *tl = y && x ? &s->block[index-w-1] : left; |
870 |
const BlockNode *tr = y && trx<w && ((x&1)==0 || level==0) ? &s->block[index-w+(1<<rem_depth)] : tl; //FIXME use lt |
871 |
int s_context= 2*left->level + 2*top->level + tl->level + tr->level; |
872 |
|
873 |
if(s->keyframe){
|
874 |
set_blocks(s, level, x, y, null_block.color[0], null_block.color[1], null_block.color[2], null_block.mx, null_block.my, null_block.ref, BLOCK_INTRA); |
875 |
return;
|
876 |
} |
877 |
|
878 |
if(level==s->block_max_depth || get_rac(&s->c, &s->block_state[4 + s_context])){ |
879 |
int type, mx, my;
|
880 |
int l = left->color[0]; |
881 |
int cb= left->color[1]; |
882 |
int cr= left->color[2]; |
883 |
int ref = 0; |
884 |
int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref); |
885 |
int mx_context= av_log2(2*FFABS(left->mx - top->mx)) + 0*av_log2(2*FFABS(tr->mx - top->mx)); |
886 |
int my_context= av_log2(2*FFABS(left->my - top->my)) + 0*av_log2(2*FFABS(tr->my - top->my)); |
887 |
|
888 |
type= get_rac(&s->c, &s->block_state[1 + left->type + top->type]) ? BLOCK_INTRA : 0; |
889 |
|
890 |
if(type){
|
891 |
pred_mv(s, &mx, &my, 0, left, top, tr);
|
892 |
l += get_symbol(&s->c, &s->block_state[32], 1); |
893 |
cb+= get_symbol(&s->c, &s->block_state[64], 1); |
894 |
cr+= get_symbol(&s->c, &s->block_state[96], 1); |
895 |
}else{
|
896 |
if(s->ref_frames > 1) |
897 |
ref= get_symbol(&s->c, &s->block_state[128 + 1024 + 32*ref_context], 0); |
898 |
pred_mv(s, &mx, &my, ref, left, top, tr); |
899 |
mx+= get_symbol(&s->c, &s->block_state[128 + 32*(mx_context + 16*!!ref)], 1); |
900 |
my+= get_symbol(&s->c, &s->block_state[128 + 32*(my_context + 16*!!ref)], 1); |
901 |
} |
902 |
set_blocks(s, level, x, y, l, cb, cr, mx, my, ref, type); |
903 |
}else{
|
904 |
decode_q_branch(s, level+1, 2*x+0, 2*y+0); |
905 |
decode_q_branch(s, level+1, 2*x+1, 2*y+0); |
906 |
decode_q_branch(s, level+1, 2*x+0, 2*y+1); |
907 |
decode_q_branch(s, level+1, 2*x+1, 2*y+1); |
908 |
} |
909 |
} |
910 |
|
911 |
static void decode_blocks(SnowContext *s){ |
912 |
int x, y;
|
913 |
int w= s->b_width;
|
914 |
int h= s->b_height;
|
915 |
|
916 |
for(y=0; y<h; y++){ |
917 |
for(x=0; x<w; x++){ |
918 |
decode_q_branch(s, 0, x, y);
|
919 |
} |
920 |
} |
921 |
} |
922 |
|
923 |
static void mc_block(Plane *p, uint8_t *dst, const uint8_t *src, int stride, int b_w, int b_h, int dx, int dy){ |
924 |
static const uint8_t weight[64]={ |
925 |
8,7,6,5,4,3,2,1, |
926 |
7,7,0,0,0,0,0,1, |
927 |
6,0,6,0,0,0,2,0, |
928 |
5,0,0,5,0,3,0,0, |
929 |
4,0,0,0,4,0,0,0, |
930 |
3,0,0,5,0,3,0,0, |
931 |
2,0,6,0,0,0,2,0, |
932 |
1,7,0,0,0,0,0,1, |
933 |
}; |
934 |
|
935 |
static const uint8_t brane[256]={ |
936 |
0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x11,0x12,0x12,0x12,0x12,0x12,0x12,0x12, |
937 |
0x04,0x05,0xcc,0xcc,0xcc,0xcc,0xcc,0x41,0x15,0x16,0xcc,0xcc,0xcc,0xcc,0xcc,0x52, |
938 |
0x04,0xcc,0x05,0xcc,0xcc,0xcc,0x41,0xcc,0x15,0xcc,0x16,0xcc,0xcc,0xcc,0x52,0xcc, |
939 |
0x04,0xcc,0xcc,0x05,0xcc,0x41,0xcc,0xcc,0x15,0xcc,0xcc,0x16,0xcc,0x52,0xcc,0xcc, |
940 |
0x04,0xcc,0xcc,0xcc,0x41,0xcc,0xcc,0xcc,0x15,0xcc,0xcc,0xcc,0x16,0xcc,0xcc,0xcc, |
941 |
0x04,0xcc,0xcc,0x41,0xcc,0x05,0xcc,0xcc,0x15,0xcc,0xcc,0x52,0xcc,0x16,0xcc,0xcc, |
942 |
0x04,0xcc,0x41,0xcc,0xcc,0xcc,0x05,0xcc,0x15,0xcc,0x52,0xcc,0xcc,0xcc,0x16,0xcc, |
943 |
0x04,0x41,0xcc,0xcc,0xcc,0xcc,0xcc,0x05,0x15,0x52,0xcc,0xcc,0xcc,0xcc,0xcc,0x16, |
944 |
0x44,0x45,0x45,0x45,0x45,0x45,0x45,0x45,0x55,0x56,0x56,0x56,0x56,0x56,0x56,0x56, |
945 |
0x48,0x49,0xcc,0xcc,0xcc,0xcc,0xcc,0x85,0x59,0x5A,0xcc,0xcc,0xcc,0xcc,0xcc,0x96, |
946 |
0x48,0xcc,0x49,0xcc,0xcc,0xcc,0x85,0xcc,0x59,0xcc,0x5A,0xcc,0xcc,0xcc,0x96,0xcc, |
947 |
0x48,0xcc,0xcc,0x49,0xcc,0x85,0xcc,0xcc,0x59,0xcc,0xcc,0x5A,0xcc,0x96,0xcc,0xcc, |
948 |
0x48,0xcc,0xcc,0xcc,0x49,0xcc,0xcc,0xcc,0x59,0xcc,0xcc,0xcc,0x96,0xcc,0xcc,0xcc, |
949 |
0x48,0xcc,0xcc,0x85,0xcc,0x49,0xcc,0xcc,0x59,0xcc,0xcc,0x96,0xcc,0x5A,0xcc,0xcc, |
950 |
0x48,0xcc,0x85,0xcc,0xcc,0xcc,0x49,0xcc,0x59,0xcc,0x96,0xcc,0xcc,0xcc,0x5A,0xcc, |
951 |
0x48,0x85,0xcc,0xcc,0xcc,0xcc,0xcc,0x49,0x59,0x96,0xcc,0xcc,0xcc,0xcc,0xcc,0x5A, |
952 |
}; |
953 |
|
954 |
static const uint8_t needs[16]={ |
955 |
0,1,0,0, |
956 |
2,4,2,0, |
957 |
0,1,0,0, |
958 |
15
|
959 |
}; |
960 |
|
961 |
int x, y, b, r, l;
|
962 |
int16_t tmpIt [64*(32+HTAPS_MAX)]; |
963 |
uint8_t tmp2t[3][stride*(32+HTAPS_MAX)]; |
964 |
int16_t *tmpI= tmpIt; |
965 |
uint8_t *tmp2= tmp2t[0];
|
966 |
const uint8_t *hpel[11]; |
967 |
assert(dx<16 && dy<16); |
968 |
r= brane[dx + 16*dy]&15; |
969 |
l= brane[dx + 16*dy]>>4; |
970 |
|
971 |
b= needs[l] | needs[r]; |
972 |
if(p && !p->diag_mc)
|
973 |
b= 15;
|
974 |
|
975 |
if(b&5){ |
976 |
for(y=0; y < b_h+HTAPS_MAX-1; y++){ |
977 |
for(x=0; x < b_w; x++){ |
978 |
int a_1=src[x + HTAPS_MAX/2-4]; |
979 |
int a0= src[x + HTAPS_MAX/2-3]; |
980 |
int a1= src[x + HTAPS_MAX/2-2]; |
981 |
int a2= src[x + HTAPS_MAX/2-1]; |
982 |
int a3= src[x + HTAPS_MAX/2+0]; |
983 |
int a4= src[x + HTAPS_MAX/2+1]; |
984 |
int a5= src[x + HTAPS_MAX/2+2]; |
985 |
int a6= src[x + HTAPS_MAX/2+3]; |
986 |
int am=0; |
987 |
if(!p || p->fast_mc){
|
988 |
am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5); |
989 |
tmpI[x]= am; |
990 |
am= (am+16)>>5; |
991 |
}else{
|
992 |
am= p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6); |
993 |
tmpI[x]= am; |
994 |
am= (am+32)>>6; |
995 |
} |
996 |
|
997 |
if(am&(~255)) am= ~(am>>31); |
998 |
tmp2[x]= am; |
999 |
} |
1000 |
tmpI+= 64;
|
1001 |
tmp2+= stride; |
1002 |
src += stride; |
1003 |
} |
1004 |
src -= stride*y; |
1005 |
} |
1006 |
src += HTAPS_MAX/2 - 1; |
1007 |
tmp2= tmp2t[1];
|
1008 |
|
1009 |
if(b&2){ |
1010 |
for(y=0; y < b_h; y++){ |
1011 |
for(x=0; x < b_w+1; x++){ |
1012 |
int a_1=src[x + (HTAPS_MAX/2-4)*stride]; |
1013 |
int a0= src[x + (HTAPS_MAX/2-3)*stride]; |
1014 |
int a1= src[x + (HTAPS_MAX/2-2)*stride]; |
1015 |
int a2= src[x + (HTAPS_MAX/2-1)*stride]; |
1016 |
int a3= src[x + (HTAPS_MAX/2+0)*stride]; |
1017 |
int a4= src[x + (HTAPS_MAX/2+1)*stride]; |
1018 |
int a5= src[x + (HTAPS_MAX/2+2)*stride]; |
1019 |
int a6= src[x + (HTAPS_MAX/2+3)*stride]; |
1020 |
int am=0; |
1021 |
if(!p || p->fast_mc)
|
1022 |
am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 16)>>5; |
1023 |
else
|
1024 |
am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 32)>>6; |
1025 |
|
1026 |
if(am&(~255)) am= ~(am>>31); |
1027 |
tmp2[x]= am; |
1028 |
} |
1029 |
src += stride; |
1030 |
tmp2+= stride; |
1031 |
} |
1032 |
src -= stride*y; |
1033 |
} |
1034 |
src += stride*(HTAPS_MAX/2 - 1); |
1035 |
tmp2= tmp2t[2];
|
1036 |
tmpI= tmpIt; |
1037 |
if(b&4){ |
1038 |
for(y=0; y < b_h; y++){ |
1039 |
for(x=0; x < b_w; x++){ |
1040 |
int a_1=tmpI[x + (HTAPS_MAX/2-4)*64]; |
1041 |
int a0= tmpI[x + (HTAPS_MAX/2-3)*64]; |
1042 |
int a1= tmpI[x + (HTAPS_MAX/2-2)*64]; |
1043 |
int a2= tmpI[x + (HTAPS_MAX/2-1)*64]; |
1044 |
int a3= tmpI[x + (HTAPS_MAX/2+0)*64]; |
1045 |
int a4= tmpI[x + (HTAPS_MAX/2+1)*64]; |
1046 |
int a5= tmpI[x + (HTAPS_MAX/2+2)*64]; |
1047 |
int a6= tmpI[x + (HTAPS_MAX/2+3)*64]; |
1048 |
int am=0; |
1049 |
if(!p || p->fast_mc)
|
1050 |
am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 512)>>10; |
1051 |
else
|
1052 |
am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 2048)>>12; |
1053 |
if(am&(~255)) am= ~(am>>31); |
1054 |
tmp2[x]= am; |
1055 |
} |
1056 |
tmpI+= 64;
|
1057 |
tmp2+= stride; |
1058 |
} |
1059 |
} |
1060 |
|
1061 |
hpel[ 0]= src;
|
1062 |
hpel[ 1]= tmp2t[0] + stride*(HTAPS_MAX/2-1); |
1063 |
hpel[ 2]= src + 1; |
1064 |
|
1065 |
hpel[ 4]= tmp2t[1]; |
1066 |
hpel[ 5]= tmp2t[2]; |
1067 |
hpel[ 6]= tmp2t[1] + 1; |
1068 |
|
1069 |
hpel[ 8]= src + stride;
|
1070 |
hpel[ 9]= hpel[1] + stride; |
1071 |
hpel[10]= hpel[8] + 1; |
1072 |
|
1073 |
if(b==15){ |
1074 |
const uint8_t *src1= hpel[dx/8 + dy/8*4 ]; |
1075 |
const uint8_t *src2= hpel[dx/8 + dy/8*4+1]; |
1076 |
const uint8_t *src3= hpel[dx/8 + dy/8*4+4]; |
1077 |
const uint8_t *src4= hpel[dx/8 + dy/8*4+5]; |
1078 |
dx&=7;
|
1079 |
dy&=7;
|
1080 |
for(y=0; y < b_h; y++){ |
1081 |
for(x=0; x < b_w; x++){ |
1082 |
dst[x]= ((8-dx)*(8-dy)*src1[x] + dx*(8-dy)*src2[x]+ |
1083 |
(8-dx)* dy *src3[x] + dx* dy *src4[x]+32)>>6; |
1084 |
} |
1085 |
src1+=stride; |
1086 |
src2+=stride; |
1087 |
src3+=stride; |
1088 |
src4+=stride; |
1089 |
dst +=stride; |
1090 |
} |
1091 |
}else{
|
1092 |
const uint8_t *src1= hpel[l];
|
1093 |
const uint8_t *src2= hpel[r];
|
1094 |
int a= weight[((dx&7) + (8*(dy&7)))]; |
1095 |
int b= 8-a; |
1096 |
for(y=0; y < b_h; y++){ |
1097 |
for(x=0; x < b_w; x++){ |
1098 |
dst[x]= (a*src1[x] + b*src2[x] + 4)>>3; |
1099 |
} |
1100 |
src1+=stride; |
1101 |
src2+=stride; |
1102 |
dst +=stride; |
1103 |
} |
1104 |
} |
1105 |
} |
1106 |
|
1107 |
#define mca(dx,dy,b_w)\
|
1108 |
static void mc_block_hpel ## dx ## dy ## b_w(uint8_t *dst, const uint8_t *src, int stride, int h){\ |
1109 |
assert(h==b_w);\ |
1110 |
mc_block(NULL, dst, src-(HTAPS_MAX/2-1)-(HTAPS_MAX/2-1)*stride, stride, b_w, b_w, dx, dy);\ |
1111 |
} |
1112 |
|
1113 |
mca( 0, 0,16) |
1114 |
mca( 8, 0,16) |
1115 |
mca( 0, 8,16) |
1116 |
mca( 8, 8,16) |
1117 |
mca( 0, 0,8) |
1118 |
mca( 8, 0,8) |
1119 |
mca( 0, 8,8) |
1120 |
mca( 8, 8,8) |
1121 |
|
1122 |
static void pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, int stride, int sx, int sy, int b_w, int b_h, BlockNode *block, int plane_index, int w, int h){ |
1123 |
if(block->type & BLOCK_INTRA){
|
1124 |
int x, y;
|
1125 |
const int color = block->color[plane_index]; |
1126 |
const int color4= color*0x01010101; |
1127 |
if(b_w==32){ |
1128 |
for(y=0; y < b_h; y++){ |
1129 |
*(uint32_t*)&dst[0 + y*stride]= color4;
|
1130 |
*(uint32_t*)&dst[4 + y*stride]= color4;
|
1131 |
*(uint32_t*)&dst[8 + y*stride]= color4;
|
1132 |
*(uint32_t*)&dst[12+ y*stride]= color4;
|
1133 |
*(uint32_t*)&dst[16+ y*stride]= color4;
|
1134 |
*(uint32_t*)&dst[20+ y*stride]= color4;
|
1135 |
*(uint32_t*)&dst[24+ y*stride]= color4;
|
1136 |
*(uint32_t*)&dst[28+ y*stride]= color4;
|
1137 |
} |
1138 |
}else if(b_w==16){ |
1139 |
for(y=0; y < b_h; y++){ |
1140 |
*(uint32_t*)&dst[0 + y*stride]= color4;
|
1141 |
*(uint32_t*)&dst[4 + y*stride]= color4;
|
1142 |
*(uint32_t*)&dst[8 + y*stride]= color4;
|
1143 |
*(uint32_t*)&dst[12+ y*stride]= color4;
|
1144 |
} |
1145 |
}else if(b_w==8){ |
1146 |
for(y=0; y < b_h; y++){ |
1147 |
*(uint32_t*)&dst[0 + y*stride]= color4;
|
1148 |
*(uint32_t*)&dst[4 + y*stride]= color4;
|
1149 |
} |
1150 |
}else if(b_w==4){ |
1151 |
for(y=0; y < b_h; y++){ |
1152 |
*(uint32_t*)&dst[0 + y*stride]= color4;
|
1153 |
} |
1154 |
}else{
|
1155 |
for(y=0; y < b_h; y++){ |
1156 |
for(x=0; x < b_w; x++){ |
1157 |
dst[x + y*stride]= color; |
1158 |
} |
1159 |
} |
1160 |
} |
1161 |
}else{
|
1162 |
uint8_t *src= s->last_picture[block->ref].data[plane_index]; |
1163 |
const int scale= plane_index ? s->mv_scale : 2*s->mv_scale; |
1164 |
int mx= block->mx*scale;
|
1165 |
int my= block->my*scale;
|
1166 |
const int dx= mx&15; |
1167 |
const int dy= my&15; |
1168 |
const int tab_index= 3 - (b_w>>2) + (b_w>>4); |
1169 |
sx += (mx>>4) - (HTAPS_MAX/2-1); |
1170 |
sy += (my>>4) - (HTAPS_MAX/2-1); |
1171 |
src += sx + sy*stride; |
1172 |
if( (unsigned)sx >= w - b_w - (HTAPS_MAX-2) |
1173 |
|| (unsigned)sy >= h - b_h - (HTAPS_MAX-2)){ |
1174 |
s->dsp.emulated_edge_mc(tmp + MB_SIZE, src, stride, b_w+HTAPS_MAX-1, b_h+HTAPS_MAX-1, sx, sy, w, h); |
1175 |
src= tmp + MB_SIZE; |
1176 |
} |
1177 |
// assert(b_w == b_h || 2*b_w == b_h || b_w == 2*b_h);
|
1178 |
// assert(!(b_w&(b_w-1)));
|
1179 |
assert(b_w>1 && b_h>1); |
1180 |
assert((tab_index>=0 && tab_index<4) || b_w==32); |
1181 |
if((dx&3) || (dy&3) || !(b_w == b_h || 2*b_w == b_h || b_w == 2*b_h) || (b_w&(b_w-1)) || !s->plane[plane_index].fast_mc ) |
1182 |
mc_block(&s->plane[plane_index], dst, src, stride, b_w, b_h, dx, dy); |
1183 |
else if(b_w==32){ |
1184 |
int y;
|
1185 |
for(y=0; y<b_h; y+=16){ |
1186 |
s->dsp.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + y*stride, src + 3 + (y+3)*stride,stride); |
1187 |
s->dsp.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + 16 + y*stride, src + 19 + (y+3)*stride,stride); |
1188 |
} |
1189 |
}else if(b_w==b_h) |
1190 |
s->dsp.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst,src + 3 + 3*stride,stride); |
1191 |
else if(b_w==2*b_h){ |
1192 |
s->dsp.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst ,src + 3 + 3*stride,stride); |
1193 |
s->dsp.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst+b_h,src + 3 + b_h + 3*stride,stride); |
1194 |
}else{
|
1195 |
assert(2*b_w==b_h);
|
1196 |
s->dsp.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst ,src + 3 + 3*stride ,stride); |
1197 |
s->dsp.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst+b_w*stride,src + 3 + 3*stride+b_w*stride,stride); |
1198 |
} |
1199 |
} |
1200 |
} |
1201 |
|
1202 |
void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, |
1203 |
int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){ |
1204 |
int y, x;
|
1205 |
IDWTELEM * dst; |
1206 |
for(y=0; y<b_h; y++){ |
1207 |
//FIXME ugly misuse of obmc_stride
|
1208 |
const uint8_t *obmc1= obmc + y*obmc_stride;
|
1209 |
const uint8_t *obmc2= obmc1+ (obmc_stride>>1); |
1210 |
const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1); |
1211 |
const uint8_t *obmc4= obmc3+ (obmc_stride>>1); |
1212 |
dst = slice_buffer_get_line(sb, src_y + y); |
1213 |
for(x=0; x<b_w; x++){ |
1214 |
int v= obmc1[x] * block[3][x + y*src_stride] |
1215 |
+obmc2[x] * block[2][x + y*src_stride]
|
1216 |
+obmc3[x] * block[1][x + y*src_stride]
|
1217 |
+obmc4[x] * block[0][x + y*src_stride];
|
1218 |
|
1219 |
v <<= 8 - LOG2_OBMC_MAX;
|
1220 |
if(FRAC_BITS != 8){ |
1221 |
v >>= 8 - FRAC_BITS;
|
1222 |
} |
1223 |
if(add){
|
1224 |
v += dst[x + src_x]; |
1225 |
v = (v + (1<<(FRAC_BITS-1))) >> FRAC_BITS; |
1226 |
if(v&(~255)) v= ~(v>>31); |
1227 |
dst8[x + y*src_stride] = v; |
1228 |
}else{
|
1229 |
dst[x + src_x] -= v; |
1230 |
} |
1231 |
} |
1232 |
} |
1233 |
} |
1234 |
|
1235 |
//FIXME name cleanup (b_w, block_w, b_width stuff)
|
1236 |
static av_always_inline void add_yblock(SnowContext *s, int sliced, slice_buffer *sb, IDWTELEM *dst, uint8_t *dst8, const uint8_t *obmc, int src_x, int src_y, int b_w, int b_h, int w, int h, int dst_stride, int src_stride, int obmc_stride, int b_x, int b_y, int add, int offset_dst, int plane_index){ |
1237 |
const int b_width = s->b_width << s->block_max_depth; |
1238 |
const int b_height= s->b_height << s->block_max_depth; |
1239 |
const int b_stride= b_width; |
1240 |
BlockNode *lt= &s->block[b_x + b_y*b_stride]; |
1241 |
BlockNode *rt= lt+1;
|
1242 |
BlockNode *lb= lt+b_stride; |
1243 |
BlockNode *rb= lb+1;
|
1244 |
uint8_t *block[4];
|
1245 |
int tmp_step= src_stride >= 7*MB_SIZE ? MB_SIZE : MB_SIZE*src_stride; |
1246 |
uint8_t *tmp = s->scratchbuf; |
1247 |
uint8_t *ptmp; |
1248 |
int x,y;
|
1249 |
|
1250 |
if(b_x<0){ |
1251 |
lt= rt; |
1252 |
lb= rb; |
1253 |
}else if(b_x + 1 >= b_width){ |
1254 |
rt= lt; |
1255 |
rb= lb; |
1256 |
} |
1257 |
if(b_y<0){ |
1258 |
lt= lb; |
1259 |
rt= rb; |
1260 |
}else if(b_y + 1 >= b_height){ |
1261 |
lb= lt; |
1262 |
rb= rt; |
1263 |
} |
1264 |
|
1265 |
if(src_x<0){ //FIXME merge with prev & always round internal width up to *16 |
1266 |
obmc -= src_x; |
1267 |
b_w += src_x; |
1268 |
if(!sliced && !offset_dst)
|
1269 |
dst -= src_x; |
1270 |
src_x=0;
|
1271 |
}else if(src_x + b_w > w){ |
1272 |
b_w = w - src_x; |
1273 |
} |
1274 |
if(src_y<0){ |
1275 |
obmc -= src_y*obmc_stride; |
1276 |
b_h += src_y; |
1277 |
if(!sliced && !offset_dst)
|
1278 |
dst -= src_y*dst_stride; |
1279 |
src_y=0;
|
1280 |
}else if(src_y + b_h> h){ |
1281 |
b_h = h - src_y; |
1282 |
} |
1283 |
|
1284 |
if(b_w<=0 || b_h<=0) return; |
1285 |
|
1286 |
assert(src_stride > 2*MB_SIZE + 5); |
1287 |
|
1288 |
if(!sliced && offset_dst)
|
1289 |
dst += src_x + src_y*dst_stride; |
1290 |
dst8+= src_x + src_y*src_stride; |
1291 |
// src += src_x + src_y*src_stride;
|
1292 |
|
1293 |
ptmp= tmp + 3*tmp_step;
|
1294 |
block[0]= ptmp;
|
1295 |
ptmp+=tmp_step; |
1296 |
pred_block(s, block[0], tmp, src_stride, src_x, src_y, b_w, b_h, lt, plane_index, w, h);
|
1297 |
|
1298 |
if(same_block(lt, rt)){
|
1299 |
block[1]= block[0]; |
1300 |
}else{
|
1301 |
block[1]= ptmp;
|
1302 |
ptmp+=tmp_step; |
1303 |
pred_block(s, block[1], tmp, src_stride, src_x, src_y, b_w, b_h, rt, plane_index, w, h);
|
1304 |
} |
1305 |
|
1306 |
if(same_block(lt, lb)){
|
1307 |
block[2]= block[0]; |
1308 |
}else if(same_block(rt, lb)){ |
1309 |
block[2]= block[1]; |
1310 |
}else{
|
1311 |
block[2]= ptmp;
|
1312 |
ptmp+=tmp_step; |
1313 |
pred_block(s, block[2], tmp, src_stride, src_x, src_y, b_w, b_h, lb, plane_index, w, h);
|
1314 |
} |
1315 |
|
1316 |
if(same_block(lt, rb) ){
|
1317 |
block[3]= block[0]; |
1318 |
}else if(same_block(rt, rb)){ |
1319 |
block[3]= block[1]; |
1320 |
}else if(same_block(lb, rb)){ |
1321 |
block[3]= block[2]; |
1322 |
}else{
|
1323 |
block[3]= ptmp;
|
1324 |
pred_block(s, block[3], tmp, src_stride, src_x, src_y, b_w, b_h, rb, plane_index, w, h);
|
1325 |
} |
1326 |
#if 0
|
1327 |
for(y=0; y<b_h; y++){
|
1328 |
for(x=0; x<b_w; x++){
|
1329 |
int v= obmc [x + y*obmc_stride] * block[3][x + y*src_stride] * (256/OBMC_MAX);
|
1330 |
if(add) dst[x + y*dst_stride] += v;
|
1331 |
else dst[x + y*dst_stride] -= v;
|
1332 |
}
|
1333 |
}
|
1334 |
for(y=0; y<b_h; y++){
|
1335 |
uint8_t *obmc2= obmc + (obmc_stride>>1);
|
1336 |
for(x=0; x<b_w; x++){
|
1337 |
int v= obmc2[x + y*obmc_stride] * block[2][x + y*src_stride] * (256/OBMC_MAX);
|
1338 |
if(add) dst[x + y*dst_stride] += v;
|
1339 |
else dst[x + y*dst_stride] -= v;
|
1340 |
}
|
1341 |
}
|
1342 |
for(y=0; y<b_h; y++){
|
1343 |
uint8_t *obmc3= obmc + obmc_stride*(obmc_stride>>1);
|
1344 |
for(x=0; x<b_w; x++){
|
1345 |
int v= obmc3[x + y*obmc_stride] * block[1][x + y*src_stride] * (256/OBMC_MAX);
|
1346 |
if(add) dst[x + y*dst_stride] += v;
|
1347 |
else dst[x + y*dst_stride] -= v;
|
1348 |
}
|
1349 |
}
|
1350 |
for(y=0; y<b_h; y++){
|
1351 |
uint8_t *obmc3= obmc + obmc_stride*(obmc_stride>>1);
|
1352 |
uint8_t *obmc4= obmc3+ (obmc_stride>>1);
|
1353 |
for(x=0; x<b_w; x++){
|
1354 |
int v= obmc4[x + y*obmc_stride] * block[0][x + y*src_stride] * (256/OBMC_MAX);
|
1355 |
if(add) dst[x + y*dst_stride] += v;
|
1356 |
else dst[x + y*dst_stride] -= v;
|
1357 |
}
|
1358 |
}
|
1359 |
#else
|
1360 |
if(sliced){
|
1361 |
s->dwt.inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8); |
1362 |
}else{
|
1363 |
for(y=0; y<b_h; y++){ |
1364 |
//FIXME ugly misuse of obmc_stride
|
1365 |
const uint8_t *obmc1= obmc + y*obmc_stride;
|
1366 |
const uint8_t *obmc2= obmc1+ (obmc_stride>>1); |
1367 |
const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1); |
1368 |
const uint8_t *obmc4= obmc3+ (obmc_stride>>1); |
1369 |
for(x=0; x<b_w; x++){ |
1370 |
int v= obmc1[x] * block[3][x + y*src_stride] |
1371 |
+obmc2[x] * block[2][x + y*src_stride]
|
1372 |
+obmc3[x] * block[1][x + y*src_stride]
|
1373 |
+obmc4[x] * block[0][x + y*src_stride];
|
1374 |
|
1375 |
v <<= 8 - LOG2_OBMC_MAX;
|
1376 |
if(FRAC_BITS != 8){ |
1377 |
v >>= 8 - FRAC_BITS;
|
1378 |
} |
1379 |
if(add){
|
1380 |
v += dst[x + y*dst_stride]; |
1381 |
v = (v + (1<<(FRAC_BITS-1))) >> FRAC_BITS; |
1382 |
if(v&(~255)) v= ~(v>>31); |
1383 |
dst8[x + y*src_stride] = v; |
1384 |
}else{
|
1385 |
dst[x + y*dst_stride] -= v; |
1386 |
} |
1387 |
} |
1388 |
} |
1389 |
} |
1390 |
#endif /* 0 */ |
1391 |
} |
1392 |
|
1393 |
static av_always_inline void predict_slice_buffered(SnowContext *s, slice_buffer * sb, IDWTELEM * old_buffer, int plane_index, int add, int mb_y){ |
1394 |
Plane *p= &s->plane[plane_index]; |
1395 |
const int mb_w= s->b_width << s->block_max_depth; |
1396 |
const int mb_h= s->b_height << s->block_max_depth; |
1397 |
int x, y, mb_x;
|
1398 |
int block_size = MB_SIZE >> s->block_max_depth;
|
1399 |
int block_w = plane_index ? block_size/2 : block_size; |
1400 |
const uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth]; |
1401 |
int obmc_stride= plane_index ? block_size : 2*block_size; |
1402 |
int ref_stride= s->current_picture.linesize[plane_index];
|
1403 |
uint8_t *dst8= s->current_picture.data[plane_index]; |
1404 |
int w= p->width;
|
1405 |
int h= p->height;
|
1406 |
|
1407 |
if(s->keyframe || (s->avctx->debug&512)){ |
1408 |
if(mb_y==mb_h)
|
1409 |
return;
|
1410 |
|
1411 |
if(add){
|
1412 |
for(y=block_w*mb_y; y<FFMIN(h,block_w*(mb_y+1)); y++){ |
1413 |
// DWTELEM * line = slice_buffer_get_line(sb, y);
|
1414 |
IDWTELEM * line = sb->line[y]; |
1415 |
for(x=0; x<w; x++){ |
1416 |
// int v= buf[x + y*w] + (128<<FRAC_BITS) + (1<<(FRAC_BITS-1));
|
1417 |
int v= line[x] + (128<<FRAC_BITS) + (1<<(FRAC_BITS-1)); |
1418 |
v >>= FRAC_BITS; |
1419 |
if(v&(~255)) v= ~(v>>31); |
1420 |
dst8[x + y*ref_stride]= v; |
1421 |
} |
1422 |
} |
1423 |
}else{
|
1424 |
for(y=block_w*mb_y; y<FFMIN(h,block_w*(mb_y+1)); y++){ |
1425 |
// DWTELEM * line = slice_buffer_get_line(sb, y);
|
1426 |
IDWTELEM * line = sb->line[y]; |
1427 |
for(x=0; x<w; x++){ |
1428 |
line[x] -= 128 << FRAC_BITS;
|
1429 |
// buf[x + y*w]-= 128<<FRAC_BITS;
|
1430 |
} |
1431 |
} |
1432 |
} |
1433 |
|
1434 |
return;
|
1435 |
} |
1436 |
|
1437 |
for(mb_x=0; mb_x<=mb_w; mb_x++){ |
1438 |
add_yblock(s, 1, sb, old_buffer, dst8, obmc,
|
1439 |
block_w*mb_x - block_w/2,
|
1440 |
block_w*mb_y - block_w/2,
|
1441 |
block_w, block_w, |
1442 |
w, h, |
1443 |
w, ref_stride, obmc_stride, |
1444 |
mb_x - 1, mb_y - 1, |
1445 |
add, 0, plane_index);
|
1446 |
} |
1447 |
} |
1448 |
|
1449 |
static av_always_inline void predict_slice(SnowContext *s, IDWTELEM *buf, int plane_index, int add, int mb_y){ |
1450 |
Plane *p= &s->plane[plane_index]; |
1451 |
const int mb_w= s->b_width << s->block_max_depth; |
1452 |
const int mb_h= s->b_height << s->block_max_depth; |
1453 |
int x, y, mb_x;
|
1454 |
int block_size = MB_SIZE >> s->block_max_depth;
|
1455 |
int block_w = plane_index ? block_size/2 : block_size; |
1456 |
const uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth]; |
1457 |
const int obmc_stride= plane_index ? block_size : 2*block_size; |
1458 |
int ref_stride= s->current_picture.linesize[plane_index];
|
1459 |
uint8_t *dst8= s->current_picture.data[plane_index]; |
1460 |
int w= p->width;
|
1461 |
int h= p->height;
|
1462 |
|
1463 |
if(s->keyframe || (s->avctx->debug&512)){ |
1464 |
if(mb_y==mb_h)
|
1465 |
return;
|
1466 |
|
1467 |
if(add){
|
1468 |
for(y=block_w*mb_y; y<FFMIN(h,block_w*(mb_y+1)); y++){ |
1469 |
for(x=0; x<w; x++){ |
1470 |
int v= buf[x + y*w] + (128<<FRAC_BITS) + (1<<(FRAC_BITS-1)); |
1471 |
v >>= FRAC_BITS; |
1472 |
if(v&(~255)) v= ~(v>>31); |
1473 |
dst8[x + y*ref_stride]= v; |
1474 |
} |
1475 |
} |
1476 |
}else{
|
1477 |
for(y=block_w*mb_y; y<FFMIN(h,block_w*(mb_y+1)); y++){ |
1478 |
for(x=0; x<w; x++){ |
1479 |
buf[x + y*w]-= 128<<FRAC_BITS;
|
1480 |
} |
1481 |
} |
1482 |
} |
1483 |
|
1484 |
return;
|
1485 |
} |
1486 |
|
1487 |
for(mb_x=0; mb_x<=mb_w; mb_x++){ |
1488 |
add_yblock(s, 0, NULL, buf, dst8, obmc, |
1489 |
block_w*mb_x - block_w/2,
|
1490 |
block_w*mb_y - block_w/2,
|
1491 |
block_w, block_w, |
1492 |
w, h, |
1493 |
w, ref_stride, obmc_stride, |
1494 |
mb_x - 1, mb_y - 1, |
1495 |
add, 1, plane_index);
|
1496 |
} |
1497 |
} |
1498 |
|
1499 |
static av_always_inline void predict_plane(SnowContext *s, IDWTELEM *buf, int plane_index, int add){ |
1500 |
const int mb_h= s->b_height << s->block_max_depth; |
1501 |
int mb_y;
|
1502 |
for(mb_y=0; mb_y<=mb_h; mb_y++) |
1503 |
predict_slice(s, buf, plane_index, add, mb_y); |
1504 |
} |
1505 |
|
1506 |
static void dequantize_slice_buffered(SnowContext *s, slice_buffer * sb, SubBand *b, IDWTELEM *src, int stride, int start_y, int end_y){ |
1507 |
const int w= b->width; |
1508 |
const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); |
1509 |
const int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); |
1510 |
const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT; |
1511 |
int x,y;
|
1512 |
|
1513 |
if(s->qlog == LOSSLESS_QLOG) return; |
1514 |
|
1515 |
for(y=start_y; y<end_y; y++){
|
1516 |
// DWTELEM * line = slice_buffer_get_line_from_address(sb, src + (y * stride));
|
1517 |
IDWTELEM * line = slice_buffer_get_line(sb, (y * b->stride_line) + b->buf_y_offset) + b->buf_x_offset; |
1518 |
for(x=0; x<w; x++){ |
1519 |
int i= line[x];
|
1520 |
if(i<0){ |
1521 |
line[x]= -((-i*qmul + qadd)>>(QEXPSHIFT)); //FIXME try different bias
|
1522 |
}else if(i>0){ |
1523 |
line[x]= (( i*qmul + qadd)>>(QEXPSHIFT)); |
1524 |
} |
1525 |
} |
1526 |
} |
1527 |
} |
1528 |
|
1529 |
static void correlate_slice_buffered(SnowContext *s, slice_buffer * sb, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median, int start_y, int end_y){ |
1530 |
const int w= b->width; |
1531 |
int x,y;
|
1532 |
|
1533 |
IDWTELEM * line=0; // silence silly "could be used without having been initialized" warning |
1534 |
IDWTELEM * prev; |
1535 |
|
1536 |
if (start_y != 0) |
1537 |
line = slice_buffer_get_line(sb, ((start_y - 1) * b->stride_line) + b->buf_y_offset) + b->buf_x_offset;
|
1538 |
|
1539 |
for(y=start_y; y<end_y; y++){
|
1540 |
prev = line; |
1541 |
// line = slice_buffer_get_line_from_address(sb, src + (y * stride));
|
1542 |
line = slice_buffer_get_line(sb, (y * b->stride_line) + b->buf_y_offset) + b->buf_x_offset; |
1543 |
for(x=0; x<w; x++){ |
1544 |
if(x){
|
1545 |
if(use_median){
|
1546 |
if(y && x+1<w) line[x] += mid_pred(line[x - 1], prev[x], prev[x + 1]); |
1547 |
else line[x] += line[x - 1]; |
1548 |
}else{
|
1549 |
if(y) line[x] += mid_pred(line[x - 1], prev[x], line[x - 1] + prev[x] - prev[x - 1]); |
1550 |
else line[x] += line[x - 1]; |
1551 |
} |
1552 |
}else{
|
1553 |
if(y) line[x] += prev[x];
|
1554 |
} |
1555 |
} |
1556 |
} |
1557 |
} |
1558 |
|
1559 |
static void decode_qlogs(SnowContext *s){ |
1560 |
int plane_index, level, orientation;
|
1561 |
|
1562 |
for(plane_index=0; plane_index<3; plane_index++){ |
1563 |
for(level=0; level<s->spatial_decomposition_count; level++){ |
1564 |
for(orientation=level ? 1:0; orientation<4; orientation++){ |
1565 |
int q;
|
1566 |
if (plane_index==2) q= s->plane[1].band[level][orientation].qlog; |
1567 |
else if(orientation==2) q= s->plane[plane_index].band[level][1].qlog; |
1568 |
else q= get_symbol(&s->c, s->header_state, 1); |
1569 |
s->plane[plane_index].band[level][orientation].qlog= q; |
1570 |
} |
1571 |
} |
1572 |
} |
1573 |
} |
1574 |
|
1575 |
#define GET_S(dst, check) \
|
1576 |
tmp= get_symbol(&s->c, s->header_state, 0);\
|
1577 |
if(!(check)){\
|
1578 |
av_log(s->avctx, AV_LOG_ERROR, "Error " #dst " is %d\n", tmp);\ |
1579 |
return -1;\ |
1580 |
}\ |
1581 |
dst= tmp; |
1582 |
|
1583 |
static int decode_header(SnowContext *s){ |
1584 |
int plane_index, tmp;
|
1585 |
uint8_t kstate[32];
|
1586 |
|
1587 |
memset(kstate, MID_STATE, sizeof(kstate));
|
1588 |
|
1589 |
s->keyframe= get_rac(&s->c, kstate); |
1590 |
if(s->keyframe || s->always_reset){
|
1591 |
reset_contexts(s); |
1592 |
s->spatial_decomposition_type= |
1593 |
s->qlog= |
1594 |
s->qbias= |
1595 |
s->mv_scale= |
1596 |
s->block_max_depth= 0;
|
1597 |
} |
1598 |
if(s->keyframe){
|
1599 |
GET_S(s->version, tmp <= 0U)
|
1600 |
s->always_reset= get_rac(&s->c, s->header_state); |
1601 |
s->temporal_decomposition_type= get_symbol(&s->c, s->header_state, 0);
|
1602 |
s->temporal_decomposition_count= get_symbol(&s->c, s->header_state, 0);
|
1603 |
GET_S(s->spatial_decomposition_count, 0 < tmp && tmp <= MAX_DECOMPOSITIONS)
|
1604 |
s->colorspace_type= get_symbol(&s->c, s->header_state, 0);
|
1605 |
s->chroma_h_shift= get_symbol(&s->c, s->header_state, 0);
|
1606 |
s->chroma_v_shift= get_symbol(&s->c, s->header_state, 0);
|
1607 |
s->spatial_scalability= get_rac(&s->c, s->header_state); |
1608 |
// s->rate_scalability= get_rac(&s->c, s->header_state);
|
1609 |
GET_S(s->max_ref_frames, tmp < (unsigned)MAX_REF_FRAMES)
|
1610 |
s->max_ref_frames++; |
1611 |
|
1612 |
decode_qlogs(s); |
1613 |
} |
1614 |
|
1615 |
if(!s->keyframe){
|
1616 |
if(get_rac(&s->c, s->header_state)){
|
1617 |
for(plane_index=0; plane_index<2; plane_index++){ |
1618 |
int htaps, i, sum=0; |
1619 |
Plane *p= &s->plane[plane_index]; |
1620 |
p->diag_mc= get_rac(&s->c, s->header_state); |
1621 |
htaps= get_symbol(&s->c, s->header_state, 0)*2 + 2; |
1622 |
if((unsigned)htaps > HTAPS_MAX || htaps==0) |
1623 |
return -1; |
1624 |
p->htaps= htaps; |
1625 |
for(i= htaps/2; i; i--){ |
1626 |
p->hcoeff[i]= get_symbol(&s->c, s->header_state, 0) * (1-2*(i&1)); |
1627 |
sum += p->hcoeff[i]; |
1628 |
} |
1629 |
p->hcoeff[0]= 32-sum; |
1630 |
} |
1631 |
s->plane[2].diag_mc= s->plane[1].diag_mc; |
1632 |
s->plane[2].htaps = s->plane[1].htaps; |
1633 |
memcpy(s->plane[2].hcoeff, s->plane[1].hcoeff, sizeof(s->plane[1].hcoeff)); |
1634 |
} |
1635 |
if(get_rac(&s->c, s->header_state)){
|
1636 |
GET_S(s->spatial_decomposition_count, 0 < tmp && tmp <= MAX_DECOMPOSITIONS)
|
1637 |
decode_qlogs(s); |
1638 |
} |
1639 |
} |
1640 |
|
1641 |
s->spatial_decomposition_type+= get_symbol(&s->c, s->header_state, 1);
|
1642 |
if(s->spatial_decomposition_type > 1U){ |
1643 |
av_log(s->avctx, AV_LOG_ERROR, "spatial_decomposition_type %d not supported", s->spatial_decomposition_type);
|
1644 |
return -1; |
1645 |
} |
1646 |
if(FFMIN(s->avctx-> width>>s->chroma_h_shift,
|
1647 |
s->avctx->height>>s->chroma_v_shift) >> (s->spatial_decomposition_count-1) <= 0){ |
1648 |
av_log(s->avctx, AV_LOG_ERROR, "spatial_decomposition_count %d too large for size", s->spatial_decomposition_count);
|
1649 |
return -1; |
1650 |
} |
1651 |
|
1652 |
s->qlog += get_symbol(&s->c, s->header_state, 1);
|
1653 |
s->mv_scale += get_symbol(&s->c, s->header_state, 1);
|
1654 |
s->qbias += get_symbol(&s->c, s->header_state, 1);
|
1655 |
s->block_max_depth+= get_symbol(&s->c, s->header_state, 1);
|
1656 |
if(s->block_max_depth > 1 || s->block_max_depth < 0){ |
1657 |
av_log(s->avctx, AV_LOG_ERROR, "block_max_depth= %d is too large", s->block_max_depth);
|
1658 |
s->block_max_depth= 0;
|
1659 |
return -1; |
1660 |
} |
1661 |
|
1662 |
return 0; |
1663 |
} |
1664 |
|
1665 |
static void init_qexp(void){ |
1666 |
int i;
|
1667 |
double v=128; |
1668 |
|
1669 |
for(i=0; i<QROOT; i++){ |
1670 |
qexp[i]= lrintf(v); |
1671 |
v *= pow(2, 1.0 / QROOT); |
1672 |
} |
1673 |
} |
1674 |
|
1675 |
static av_cold int common_init(AVCodecContext *avctx){ |
1676 |
SnowContext *s = avctx->priv_data; |
1677 |
int width, height;
|
1678 |
int i, j;
|
1679 |
|
1680 |
s->avctx= avctx; |
1681 |
s->max_ref_frames=1; //just make sure its not an invalid value in case of no initial keyframe |
1682 |
|
1683 |
dsputil_init(&s->dsp, avctx); |
1684 |
ff_dwt_init(&s->dwt); |
1685 |
|
1686 |
#define mcf(dx,dy)\
|
1687 |
s->dsp.put_qpel_pixels_tab [0][dy+dx/4]=\ |
1688 |
s->dsp.put_no_rnd_qpel_pixels_tab[0][dy+dx/4]=\ |
1689 |
s->dsp.put_h264_qpel_pixels_tab[0][dy+dx/4];\ |
1690 |
s->dsp.put_qpel_pixels_tab [1][dy+dx/4]=\ |
1691 |
s->dsp.put_no_rnd_qpel_pixels_tab[1][dy+dx/4]=\ |
1692 |
s->dsp.put_h264_qpel_pixels_tab[1][dy+dx/4]; |
1693 |
|
1694 |
mcf( 0, 0) |
1695 |
mcf( 4, 0) |
1696 |
mcf( 8, 0) |
1697 |
mcf(12, 0) |
1698 |
mcf( 0, 4) |
1699 |
mcf( 4, 4) |
1700 |
mcf( 8, 4) |
1701 |
mcf(12, 4) |
1702 |
mcf( 0, 8) |
1703 |
mcf( 4, 8) |
1704 |
mcf( 8, 8) |
1705 |
mcf(12, 8) |
1706 |
mcf( 0,12) |
1707 |
mcf( 4,12) |
1708 |
mcf( 8,12) |
1709 |
mcf(12,12) |
1710 |
|
1711 |
#define mcfh(dx,dy)\
|
1712 |
s->dsp.put_pixels_tab [0][dy/4+dx/8]=\ |
1713 |
s->dsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\ |
1714 |
mc_block_hpel ## dx ## dy ## 16;\ |
1715 |
s->dsp.put_pixels_tab [1][dy/4+dx/8]=\ |
1716 |
s->dsp.put_no_rnd_pixels_tab[1][dy/4+dx/8]=\ |
1717 |
mc_block_hpel ## dx ## dy ## 8; |
1718 |
|
1719 |
mcfh(0, 0) |
1720 |
mcfh(8, 0) |
1721 |
mcfh(0, 8) |
1722 |
mcfh(8, 8) |
1723 |
|
1724 |
if(!qexp[0]) |
1725 |
init_qexp(); |
1726 |
|
1727 |
// dec += FFMAX(s->chroma_h_shift, s->chroma_v_shift);
|
1728 |
|
1729 |
width= s->avctx->width; |
1730 |
height= s->avctx->height; |
1731 |
|
1732 |
s->spatial_idwt_buffer= av_mallocz(width*height*sizeof(IDWTELEM));
|
1733 |
s->spatial_dwt_buffer= av_mallocz(width*height*sizeof(DWTELEM)); //FIXME this does not belong here |
1734 |
|
1735 |
for(i=0; i<MAX_REF_FRAMES; i++) |
1736 |
for(j=0; j<MAX_REF_FRAMES; j++) |
1737 |
scale_mv_ref[i][j] = 256*(i+1)/(j+1); |
1738 |
|
1739 |
s->avctx->get_buffer(s->avctx, &s->mconly_picture); |
1740 |
s->scratchbuf = av_malloc(s->mconly_picture.linesize[0]*7*MB_SIZE); |
1741 |
|
1742 |
return 0; |
1743 |
} |
1744 |
|
1745 |
static int common_init_after_header(AVCodecContext *avctx){ |
1746 |
SnowContext *s = avctx->priv_data; |
1747 |
int plane_index, level, orientation;
|
1748 |
|
1749 |
for(plane_index=0; plane_index<3; plane_index++){ |
1750 |
int w= s->avctx->width;
|
1751 |
int h= s->avctx->height;
|
1752 |
|
1753 |
if(plane_index){
|
1754 |
w>>= s->chroma_h_shift; |
1755 |
h>>= s->chroma_v_shift; |
1756 |
} |
1757 |
s->plane[plane_index].width = w; |
1758 |
s->plane[plane_index].height= h; |
1759 |
|
1760 |
for(level=s->spatial_decomposition_count-1; level>=0; level--){ |
1761 |
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
1762 |
SubBand *b= &s->plane[plane_index].band[level][orientation]; |
1763 |
|
1764 |
b->buf= s->spatial_dwt_buffer; |
1765 |
b->level= level; |
1766 |
b->stride= s->plane[plane_index].width << (s->spatial_decomposition_count - level); |
1767 |
b->width = (w + !(orientation&1))>>1; |
1768 |
b->height= (h + !(orientation>1))>>1; |
1769 |
|
1770 |
b->stride_line = 1 << (s->spatial_decomposition_count - level);
|
1771 |
b->buf_x_offset = 0;
|
1772 |
b->buf_y_offset = 0;
|
1773 |
|
1774 |
if(orientation&1){ |
1775 |
b->buf += (w+1)>>1; |
1776 |
b->buf_x_offset = (w+1)>>1; |
1777 |
} |
1778 |
if(orientation>1){ |
1779 |
b->buf += b->stride>>1;
|
1780 |
b->buf_y_offset = b->stride_line >> 1;
|
1781 |
} |
1782 |
b->ibuf= s->spatial_idwt_buffer + (b->buf - s->spatial_dwt_buffer); |
1783 |
|
1784 |
if(level)
|
1785 |
b->parent= &s->plane[plane_index].band[level-1][orientation];
|
1786 |
//FIXME avoid this realloc
|
1787 |
av_freep(&b->x_coeff); |
1788 |
b->x_coeff=av_mallocz(((b->width+1) * b->height+1)*sizeof(x_and_coeff)); |
1789 |
} |
1790 |
w= (w+1)>>1; |
1791 |
h= (h+1)>>1; |
1792 |
} |
1793 |
} |
1794 |
|
1795 |
return 0; |
1796 |
} |
1797 |
|
1798 |
#define QUANTIZE2 0 |
1799 |
|
1800 |
#if QUANTIZE2==1 |
1801 |
#define Q2_STEP 8 |
1802 |
|
1803 |
static void find_sse(SnowContext *s, Plane *p, int *score, int score_stride, IDWTELEM *r0, IDWTELEM *r1, int level, int orientation){ |
1804 |
SubBand *b= &p->band[level][orientation]; |
1805 |
int x, y;
|
1806 |
int xo=0; |
1807 |
int yo=0; |
1808 |
int step= 1 << (s->spatial_decomposition_count - level); |
1809 |
|
1810 |
if(orientation&1) |
1811 |
xo= step>>1;
|
1812 |
if(orientation&2) |
1813 |
yo= step>>1;
|
1814 |
|
1815 |
//FIXME bias for nonzero ?
|
1816 |
//FIXME optimize
|
1817 |
memset(score, 0, sizeof(*score)*score_stride*((p->height + Q2_STEP-1)/Q2_STEP)); |
1818 |
for(y=0; y<p->height; y++){ |
1819 |
for(x=0; x<p->width; x++){ |
1820 |
int sx= (x-xo + step/2) / step / Q2_STEP; |
1821 |
int sy= (y-yo + step/2) / step / Q2_STEP; |
1822 |
int v= r0[x + y*p->width] - r1[x + y*p->width];
|
1823 |
assert(sx>=0 && sy>=0 && sx < score_stride); |
1824 |
v= ((v+8)>>4)<<4; |
1825 |
score[sx + sy*score_stride] += v*v; |
1826 |
assert(score[sx + sy*score_stride] >= 0);
|
1827 |
} |
1828 |
} |
1829 |
} |
1830 |
|
1831 |
static void dequantize_all(SnowContext *s, Plane *p, IDWTELEM *buffer, int width, int height){ |
1832 |
int level, orientation;
|
1833 |
|
1834 |
for(level=0; level<s->spatial_decomposition_count; level++){ |
1835 |
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
1836 |
SubBand *b= &p->band[level][orientation]; |
1837 |
IDWTELEM *dst= buffer + (b->ibuf - s->spatial_idwt_buffer); |
1838 |
|
1839 |
dequantize(s, b, dst, b->stride); |
1840 |
} |
1841 |
} |
1842 |
} |
1843 |
|
1844 |
static void dwt_quantize(SnowContext *s, Plane *p, DWTELEM *buffer, int width, int height, int stride, int type){ |
1845 |
int level, orientation, ys, xs, x, y, pass;
|
1846 |
IDWTELEM best_dequant[height * stride]; |
1847 |
IDWTELEM idwt2_buffer[height * stride]; |
1848 |
const int score_stride= (width + 10)/Q2_STEP; |
1849 |
int best_score[(width + 10)/Q2_STEP * (height + 10)/Q2_STEP]; //FIXME size |
1850 |
int score[(width + 10)/Q2_STEP * (height + 10)/Q2_STEP]; //FIXME size |
1851 |
int threshold= (s->m.lambda * s->m.lambda) >> 6; |
1852 |
|
1853 |
//FIXME pass the copy cleanly ?
|
1854 |
|
1855 |
// memcpy(dwt_buffer, buffer, height * stride * sizeof(DWTELEM));
|
1856 |
ff_spatial_dwt(buffer, width, height, stride, type, s->spatial_decomposition_count); |
1857 |
|
1858 |
for(level=0; level<s->spatial_decomposition_count; level++){ |
1859 |
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
1860 |
SubBand *b= &p->band[level][orientation]; |
1861 |
IDWTELEM *dst= best_dequant + (b->ibuf - s->spatial_idwt_buffer); |
1862 |
DWTELEM *src= buffer + (b-> buf - s->spatial_dwt_buffer); |
1863 |
assert(src == b->buf); // code does not depend on this but it is true currently
|
1864 |
|
1865 |
quantize(s, b, dst, src, b->stride, s->qbias); |
1866 |
} |
1867 |
} |
1868 |
for(pass=0; pass<1; pass++){ |
1869 |
if(s->qbias == 0) //keyframe |
1870 |
continue;
|
1871 |
for(level=0; level<s->spatial_decomposition_count; level++){ |
1872 |
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
1873 |
SubBand *b= &p->band[level][orientation]; |
1874 |
IDWTELEM *dst= idwt2_buffer + (b->ibuf - s->spatial_idwt_buffer); |
1875 |
IDWTELEM *best_dst= best_dequant + (b->ibuf - s->spatial_idwt_buffer); |
1876 |
|
1877 |
for(ys= 0; ys<Q2_STEP; ys++){ |
1878 |
for(xs= 0; xs<Q2_STEP; xs++){ |
1879 |
memcpy(idwt2_buffer, best_dequant, height * stride * sizeof(IDWTELEM));
|
1880 |
dequantize_all(s, p, idwt2_buffer, width, height); |
1881 |
ff_spatial_idwt(idwt2_buffer, width, height, stride, type, s->spatial_decomposition_count); |
1882 |
find_sse(s, p, best_score, score_stride, idwt2_buffer, s->spatial_idwt_buffer, level, orientation); |
1883 |
memcpy(idwt2_buffer, best_dequant, height * stride * sizeof(IDWTELEM));
|
1884 |
for(y=ys; y<b->height; y+= Q2_STEP){
|
1885 |
for(x=xs; x<b->width; x+= Q2_STEP){
|
1886 |
if(dst[x + y*b->stride]<0) dst[x + y*b->stride]++; |
1887 |
if(dst[x + y*b->stride]>0) dst[x + y*b->stride]--; |
1888 |
//FIXME try more than just --
|
1889 |
} |
1890 |
} |
1891 |
dequantize_all(s, p, idwt2_buffer, width, height); |
1892 |
ff_spatial_idwt(idwt2_buffer, width, height, stride, type, s->spatial_decomposition_count); |
1893 |
find_sse(s, p, score, score_stride, idwt2_buffer, s->spatial_idwt_buffer, level, orientation); |
1894 |
for(y=ys; y<b->height; y+= Q2_STEP){
|
1895 |
for(x=xs; x<b->width; x+= Q2_STEP){
|
1896 |
int score_idx= x/Q2_STEP + (y/Q2_STEP)*score_stride;
|
1897 |
if(score[score_idx] <= best_score[score_idx] + threshold){
|
1898 |
best_score[score_idx]= score[score_idx]; |
1899 |
if(best_dst[x + y*b->stride]<0) best_dst[x + y*b->stride]++; |
1900 |
if(best_dst[x + y*b->stride]>0) best_dst[x + y*b->stride]--; |
1901 |
//FIXME copy instead
|
1902 |
} |
1903 |
} |
1904 |
} |
1905 |
} |
1906 |
} |
1907 |
} |
1908 |
} |
1909 |
} |
1910 |
memcpy(s->spatial_idwt_buffer, best_dequant, height * stride * sizeof(IDWTELEM)); //FIXME work with that directly instead of copy at the end |
1911 |
} |
1912 |
|
1913 |
#endif /* QUANTIZE2==1 */ |
1914 |
|
1915 |
#define USE_HALFPEL_PLANE 0 |
1916 |
|
1917 |
static void halfpel_interpol(SnowContext *s, uint8_t *halfpel[4][4], AVFrame *frame){ |
1918 |
int p,x,y;
|
1919 |
|
1920 |
assert(!(s->avctx->flags & CODEC_FLAG_EMU_EDGE)); |
1921 |
|
1922 |
for(p=0; p<3; p++){ |
1923 |
int is_chroma= !!p;
|
1924 |
int w= s->avctx->width >>is_chroma;
|
1925 |
int h= s->avctx->height >>is_chroma;
|
1926 |
int ls= frame->linesize[p];
|
1927 |
uint8_t *src= frame->data[p]; |
1928 |
|
1929 |
halfpel[1][p]= (uint8_t*)av_malloc(ls * (h+2*EDGE_WIDTH)) + EDGE_WIDTH*(1+ls); |
1930 |
halfpel[2][p]= (uint8_t*)av_malloc(ls * (h+2*EDGE_WIDTH)) + EDGE_WIDTH*(1+ls); |
1931 |
halfpel[3][p]= (uint8_t*)av_malloc(ls * (h+2*EDGE_WIDTH)) + EDGE_WIDTH*(1+ls); |
1932 |
|
1933 |
halfpel[0][p]= src;
|
1934 |
for(y=0; y<h; y++){ |
1935 |
for(x=0; x<w; x++){ |
1936 |
int i= y*ls + x;
|
1937 |
|
1938 |
halfpel[1][p][i]= (20*(src[i] + src[i+1]) - 5*(src[i-1] + src[i+2]) + (src[i-2] + src[i+3]) + 16 )>>5; |
1939 |
} |
1940 |
} |
1941 |
for(y=0; y<h; y++){ |
1942 |
for(x=0; x<w; x++){ |
1943 |
int i= y*ls + x;
|
1944 |
|
1945 |
halfpel[2][p][i]= (20*(src[i] + src[i+ls]) - 5*(src[i-ls] + src[i+2*ls]) + (src[i-2*ls] + src[i+3*ls]) + 16 )>>5; |
1946 |
} |
1947 |
} |
1948 |
src= halfpel[1][p];
|
1949 |
for(y=0; y<h; y++){ |
1950 |
for(x=0; x<w; x++){ |
1951 |
int i= y*ls + x;
|
1952 |
|
1953 |
halfpel[3][p][i]= (20*(src[i] + src[i+ls]) - 5*(src[i-ls] + src[i+2*ls]) + (src[i-2*ls] + src[i+3*ls]) + 16 )>>5; |
1954 |
} |
1955 |
} |
1956 |
|
1957 |
//FIXME border!
|
1958 |
} |
1959 |
} |
1960 |
|
1961 |
static void release_buffer(AVCodecContext *avctx){ |
1962 |
SnowContext *s = avctx->priv_data; |
1963 |
int i;
|
1964 |
|
1965 |
if(s->last_picture[s->max_ref_frames-1].data[0]){ |
1966 |
avctx->release_buffer(avctx, &s->last_picture[s->max_ref_frames-1]);
|
1967 |
for(i=0; i<9; i++) |
1968 |
if(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3]) |
1969 |
av_free(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3] - EDGE_WIDTH*(1+s->current_picture.linesize[i%3])); |
1970 |
} |
1971 |
} |
1972 |
|
1973 |
static int frame_start(SnowContext *s){ |
1974 |
AVFrame tmp; |
1975 |
int w= s->avctx->width; //FIXME round up to x16 ? |
1976 |
int h= s->avctx->height;
|
1977 |
|
1978 |
if(s->current_picture.data[0]){ |
1979 |
s->dsp.draw_edges(s->current_picture.data[0], s->current_picture.linesize[0], w , h , EDGE_WIDTH ); |
1980 |
s->dsp.draw_edges(s->current_picture.data[1], s->current_picture.linesize[1], w>>1, h>>1, EDGE_WIDTH/2); |
1981 |
s->dsp.draw_edges(s->current_picture.data[2], s->current_picture.linesize[2], w>>1, h>>1, EDGE_WIDTH/2); |
1982 |
} |
1983 |
|
1984 |
release_buffer(s->avctx); |
1985 |
|
1986 |
tmp= s->last_picture[s->max_ref_frames-1];
|
1987 |
memmove(s->last_picture+1, s->last_picture, (s->max_ref_frames-1)*sizeof(AVFrame)); |
1988 |
memmove(s->halfpel_plane+1, s->halfpel_plane, (s->max_ref_frames-1)*sizeof(void*)*4*4); |
1989 |
if(USE_HALFPEL_PLANE && s->current_picture.data[0]) |
1990 |
halfpel_interpol(s, s->halfpel_plane[0], &s->current_picture);
|
1991 |
s->last_picture[0]= s->current_picture;
|
1992 |
s->current_picture= tmp; |
1993 |
|
1994 |
if(s->keyframe){
|
1995 |
s->ref_frames= 0;
|
1996 |
}else{
|
1997 |
int i;
|
1998 |
for(i=0; i<s->max_ref_frames && s->last_picture[i].data[0]; i++) |
1999 |
if(i && s->last_picture[i-1].key_frame) |
2000 |
break;
|
2001 |
s->ref_frames= i; |
2002 |
if(s->ref_frames==0){ |
2003 |
av_log(s->avctx,AV_LOG_ERROR, "No reference frames\n");
|
2004 |
return -1; |
2005 |
} |
2006 |
} |
2007 |
|
2008 |
s->current_picture.reference= 1;
|
2009 |
if(s->avctx->get_buffer(s->avctx, &s->current_picture) < 0){ |
2010 |
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
|
2011 |
return -1; |
2012 |
} |
2013 |
|
2014 |
s->current_picture.key_frame= s->keyframe; |
2015 |
|
2016 |
return 0; |
2017 |
} |
2018 |
|
2019 |
static av_cold void common_end(SnowContext *s){ |
2020 |
int plane_index, level, orientation, i;
|
2021 |
|
2022 |
av_freep(&s->spatial_dwt_buffer); |
2023 |
av_freep(&s->spatial_idwt_buffer); |
2024 |
|
2025 |
s->m.me.temp= NULL;
|
2026 |
av_freep(&s->m.me.scratchpad); |
2027 |
av_freep(&s->m.me.map); |
2028 |
av_freep(&s->m.me.score_map); |
2029 |
av_freep(&s->m.obmc_scratchpad); |
2030 |
|
2031 |
av_freep(&s->block); |
2032 |
av_freep(&s->scratchbuf); |
2033 |
|
2034 |
for(i=0; i<MAX_REF_FRAMES; i++){ |
2035 |
av_freep(&s->ref_mvs[i]); |
2036 |
av_freep(&s->ref_scores[i]); |
2037 |
if(s->last_picture[i].data[0]) |
2038 |
s->avctx->release_buffer(s->avctx, &s->last_picture[i]); |
2039 |
} |
2040 |
|
2041 |
for(plane_index=0; plane_index<3; plane_index++){ |
2042 |
for(level=s->spatial_decomposition_count-1; level>=0; level--){ |
2043 |
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
2044 |
SubBand *b= &s->plane[plane_index].band[level][orientation]; |
2045 |
|
2046 |
av_freep(&b->x_coeff); |
2047 |
} |
2048 |
} |
2049 |
} |
2050 |
if (s->mconly_picture.data[0]) |
2051 |
s->avctx->release_buffer(s->avctx, &s->mconly_picture); |
2052 |
if (s->current_picture.data[0]) |
2053 |
s->avctx->release_buffer(s->avctx, &s->current_picture); |
2054 |
} |
2055 |
|
2056 |
static av_cold int decode_init(AVCodecContext *avctx) |
2057 |
{ |
2058 |
avctx->pix_fmt= PIX_FMT_YUV420P; |
2059 |
|
2060 |
common_init(avctx); |
2061 |
|
2062 |
return 0; |
2063 |
} |
2064 |
|
2065 |
static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt){ |
2066 |
const uint8_t *buf = avpkt->data;
|
2067 |
int buf_size = avpkt->size;
|
2068 |
SnowContext *s = avctx->priv_data; |
2069 |
RangeCoder * const c= &s->c;
|
2070 |
int bytes_read;
|
2071 |
AVFrame *picture = data; |
2072 |
int level, orientation, plane_index;
|
2073 |
|
2074 |
ff_init_range_decoder(c, buf, buf_size); |
2075 |
ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); |
2076 |
|
2077 |
s->current_picture.pict_type= FF_I_TYPE; //FIXME I vs. P
|
2078 |
if(decode_header(s)<0) |
2079 |
return -1; |
2080 |
common_init_after_header(avctx); |
2081 |
|
2082 |
// realloc slice buffer for the case that spatial_decomposition_count changed
|
2083 |
ff_slice_buffer_destroy(&s->sb); |
2084 |
ff_slice_buffer_init(&s->sb, s->plane[0].height, (MB_SIZE >> s->block_max_depth) + s->spatial_decomposition_count * 8 + 1, s->plane[0].width, s->spatial_idwt_buffer); |
2085 |
|
2086 |
for(plane_index=0; plane_index<3; plane_index++){ |
2087 |
Plane *p= &s->plane[plane_index]; |
2088 |
p->fast_mc= p->diag_mc && p->htaps==6 && p->hcoeff[0]==40 |
2089 |
&& p->hcoeff[1]==-10 |
2090 |
&& p->hcoeff[2]==2; |
2091 |
} |
2092 |
|
2093 |
alloc_blocks(s); |
2094 |
|
2095 |
if(frame_start(s) < 0) |
2096 |
return -1; |
2097 |
//keyframe flag duplication mess FIXME
|
2098 |
if(avctx->debug&FF_DEBUG_PICT_INFO)
|
2099 |
av_log(avctx, AV_LOG_ERROR, "keyframe:%d qlog:%d\n", s->keyframe, s->qlog);
|
2100 |
|
2101 |
decode_blocks(s); |
2102 |
|
2103 |
for(plane_index=0; plane_index<3; plane_index++){ |
2104 |
Plane *p= &s->plane[plane_index]; |
2105 |
int w= p->width;
|
2106 |
int h= p->height;
|
2107 |
int x, y;
|
2108 |
int decode_state[MAX_DECOMPOSITIONS][4][1]; /* Stored state info for unpack_coeffs. 1 variable per instance. */ |
2109 |
|
2110 |
if(s->avctx->debug&2048){ |
2111 |
memset(s->spatial_dwt_buffer, 0, sizeof(DWTELEM)*w*h); |
2112 |
predict_plane(s, s->spatial_idwt_buffer, plane_index, 1);
|
2113 |
|
2114 |
for(y=0; y<h; y++){ |
2115 |
for(x=0; x<w; x++){ |
2116 |
int v= s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x];
|
2117 |
s->mconly_picture.data[plane_index][y*s->mconly_picture.linesize[plane_index] + x]= v; |
2118 |
} |
2119 |
} |
2120 |
} |
2121 |
|
2122 |
{ |
2123 |
for(level=0; level<s->spatial_decomposition_count; level++){ |
2124 |
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
2125 |
SubBand *b= &p->band[level][orientation]; |
2126 |
unpack_coeffs(s, b, b->parent, orientation); |
2127 |
} |
2128 |
} |
2129 |
} |
2130 |
|
2131 |
{ |
2132 |
const int mb_h= s->b_height << s->block_max_depth; |
2133 |
const int block_size = MB_SIZE >> s->block_max_depth; |
2134 |
const int block_w = plane_index ? block_size/2 : block_size; |
2135 |
int mb_y;
|
2136 |
DWTCompose cs[MAX_DECOMPOSITIONS]; |
2137 |
int yd=0, yq=0; |
2138 |
int y;
|
2139 |
int end_y;
|
2140 |
|
2141 |
ff_spatial_idwt_buffered_init(cs, &s->sb, w, h, 1, s->spatial_decomposition_type, s->spatial_decomposition_count);
|
2142 |
for(mb_y=0; mb_y<=mb_h; mb_y++){ |
2143 |
|
2144 |
int slice_starty = block_w*mb_y;
|
2145 |
int slice_h = block_w*(mb_y+1); |
2146 |
if (!(s->keyframe || s->avctx->debug&512)){ |
2147 |
slice_starty = FFMAX(0, slice_starty - (block_w >> 1)); |
2148 |
slice_h -= (block_w >> 1);
|
2149 |
} |
2150 |
|
2151 |
for(level=0; level<s->spatial_decomposition_count; level++){ |
2152 |
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
2153 |
SubBand *b= &p->band[level][orientation]; |
2154 |
int start_y;
|
2155 |
int end_y;
|
2156 |
int our_mb_start = mb_y;
|
2157 |
int our_mb_end = (mb_y + 1); |
2158 |
const int extra= 3; |
2159 |
start_y = (mb_y ? ((block_w * our_mb_start) >> (s->spatial_decomposition_count - level)) + s->spatial_decomposition_count - level + extra: 0);
|
2160 |
end_y = (((block_w * our_mb_end) >> (s->spatial_decomposition_count - level)) + s->spatial_decomposition_count - level + extra); |
2161 |
if (!(s->keyframe || s->avctx->debug&512)){ |
2162 |
start_y = FFMAX(0, start_y - (block_w >> (1+s->spatial_decomposition_count - level))); |
2163 |
end_y = FFMAX(0, end_y - (block_w >> (1+s->spatial_decomposition_count - level))); |
2164 |
} |
2165 |
start_y = FFMIN(b->height, start_y); |
2166 |
end_y = FFMIN(b->height, end_y); |
2167 |
|
2168 |
if (start_y != end_y){
|
2169 |
if (orientation == 0){ |
2170 |
SubBand * correlate_band = &p->band[0][0]; |
2171 |
int correlate_end_y = FFMIN(b->height, end_y + 1); |
2172 |
int correlate_start_y = FFMIN(b->height, (start_y ? start_y + 1 : 0)); |
2173 |
decode_subband_slice_buffered(s, correlate_band, &s->sb, correlate_start_y, correlate_end_y, decode_state[0][0]); |
2174 |
correlate_slice_buffered(s, &s->sb, correlate_band, correlate_band->ibuf, correlate_band->stride, 1, 0, correlate_start_y, correlate_end_y); |
2175 |
dequantize_slice_buffered(s, &s->sb, correlate_band, correlate_band->ibuf, correlate_band->stride, start_y, end_y); |
2176 |
} |
2177 |
else
|
2178 |
decode_subband_slice_buffered(s, b, &s->sb, start_y, end_y, decode_state[level][orientation]); |
2179 |
} |
2180 |
} |
2181 |
} |
2182 |
|
2183 |
for(; yd<slice_h; yd+=4){ |
2184 |
ff_spatial_idwt_buffered_slice(&s->dwt, cs, &s->sb, w, h, 1, s->spatial_decomposition_type, s->spatial_decomposition_count, yd);
|
2185 |
} |
2186 |
|
2187 |
if(s->qlog == LOSSLESS_QLOG){
|
2188 |
for(; yq<slice_h && yq<h; yq++){
|
2189 |
IDWTELEM * line = slice_buffer_get_line(&s->sb, yq); |
2190 |
for(x=0; x<w; x++){ |
2191 |
line[x] <<= FRAC_BITS; |
2192 |
} |
2193 |
} |
2194 |
} |
2195 |
|
2196 |
predict_slice_buffered(s, &s->sb, s->spatial_idwt_buffer, plane_index, 1, mb_y);
|
2197 |
|
2198 |
y = FFMIN(p->height, slice_starty); |
2199 |
end_y = FFMIN(p->height, slice_h); |
2200 |
while(y < end_y)
|
2201 |
ff_slice_buffer_release(&s->sb, y++); |
2202 |
} |
2203 |
|
2204 |
ff_slice_buffer_flush(&s->sb); |
2205 |
} |
2206 |
|
2207 |
} |
2208 |
|
2209 |
emms_c(); |
2210 |
|
2211 |
release_buffer(avctx); |
2212 |
|
2213 |
if(!(s->avctx->debug&2048)) |
2214 |
*picture= s->current_picture; |
2215 |
else
|
2216 |
*picture= s->mconly_picture; |
2217 |
|
2218 |
*data_size = sizeof(AVFrame);
|
2219 |
|
2220 |
bytes_read= c->bytestream - c->bytestream_start; |
2221 |
if(bytes_read ==0) av_log(s->avctx, AV_LOG_ERROR, "error at end of frame\n"); //FIXME |
2222 |
|
2223 |
return bytes_read;
|
2224 |
} |
2225 |
|
2226 |
static av_cold int decode_end(AVCodecContext *avctx) |
2227 |
{ |
2228 |
SnowContext *s = avctx->priv_data; |
2229 |
|
2230 |
ff_slice_buffer_destroy(&s->sb); |
2231 |
|
2232 |
common_end(s); |
2233 |
|
2234 |
return 0; |
2235 |
} |
2236 |
|
2237 |
AVCodec ff_snow_decoder = { |
2238 |
"snow",
|
2239 |
AVMEDIA_TYPE_VIDEO, |
2240 |
CODEC_ID_SNOW, |
2241 |
sizeof(SnowContext),
|
2242 |
decode_init, |
2243 |
NULL,
|
2244 |
decode_end, |
2245 |
decode_frame, |
2246 |
CODEC_CAP_DR1 /*| CODEC_CAP_DRAW_HORIZ_BAND*/,
|
2247 |
NULL,
|
2248 |
.long_name = NULL_IF_CONFIG_SMALL("Snow"),
|
2249 |
}; |
2250 |
|
2251 |
#if CONFIG_SNOW_ENCODER
|
2252 |
static av_cold int encode_init(AVCodecContext *avctx) |
2253 |
{ |
2254 |
SnowContext *s = avctx->priv_data; |
2255 |
int plane_index;
|
2256 |
|
2257 |
if(avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){
|
2258 |
av_log(avctx, AV_LOG_ERROR, "This codec is under development, files encoded with it may not be decodable with future versions!!!\n"
|
2259 |
"Use vstrict=-2 / -strict -2 to use it anyway.\n");
|
2260 |
return -1; |
2261 |
} |
2262 |
|
2263 |
if(avctx->prediction_method == DWT_97
|
2264 |
&& (avctx->flags & CODEC_FLAG_QSCALE) |
2265 |
&& avctx->global_quality == 0){
|
2266 |
av_log(avctx, AV_LOG_ERROR, "The 9/7 wavelet is incompatible with lossless mode.\n");
|
2267 |
return -1; |
2268 |
} |
2269 |
|
2270 |
s->spatial_decomposition_type= avctx->prediction_method; //FIXME add decorrelator type r transform_type
|
2271 |
|
2272 |
s->mv_scale = (avctx->flags & CODEC_FLAG_QPEL) ? 2 : 4; |
2273 |
s->block_max_depth= (avctx->flags & CODEC_FLAG_4MV ) ? 1 : 0; |
2274 |
|
2275 |
for(plane_index=0; plane_index<3; plane_index++){ |
2276 |
s->plane[plane_index].diag_mc= 1;
|
2277 |
s->plane[plane_index].htaps= 6;
|
2278 |
s->plane[plane_index].hcoeff[0]= 40; |
2279 |
s->plane[plane_index].hcoeff[1]= -10; |
2280 |
s->plane[plane_index].hcoeff[2]= 2; |
2281 |
s->plane[plane_index].fast_mc= 1;
|
2282 |
} |
2283 |
|
2284 |
common_init(avctx); |
2285 |
alloc_blocks(s); |
2286 |
|
2287 |
s->version=0;
|
2288 |
|
2289 |
s->m.avctx = avctx; |
2290 |
s->m.flags = avctx->flags; |
2291 |
s->m.bit_rate= avctx->bit_rate; |
2292 |
|
2293 |
s->m.me.temp = |
2294 |
s->m.me.scratchpad= av_mallocz((avctx->width+64)*2*16*2*sizeof(uint8_t)); |
2295 |
s->m.me.map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t));
|
2296 |
s->m.me.score_map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t));
|
2297 |
s->m.obmc_scratchpad= av_mallocz(MB_SIZE*MB_SIZE*12*sizeof(uint32_t)); |
2298 |
h263_encode_init(&s->m); //mv_penalty
|
2299 |
|
2300 |
s->max_ref_frames = FFMAX(FFMIN(avctx->refs, MAX_REF_FRAMES), 1);
|
2301 |
|
2302 |
if(avctx->flags&CODEC_FLAG_PASS1){
|
2303 |
if(!avctx->stats_out)
|
2304 |
avctx->stats_out = av_mallocz(256);
|
2305 |
} |
2306 |
if((avctx->flags&CODEC_FLAG_PASS2) || !(avctx->flags&CODEC_FLAG_QSCALE)){
|
2307 |
if(ff_rate_control_init(&s->m) < 0) |
2308 |
return -1; |
2309 |
} |
2310 |
s->pass1_rc= !(avctx->flags & (CODEC_FLAG_QSCALE|CODEC_FLAG_PASS2)); |
2311 |
|
2312 |
avctx->coded_frame= &s->current_picture; |
2313 |
switch(avctx->pix_fmt){
|
2314 |
// case PIX_FMT_YUV444P:
|
2315 |
// case PIX_FMT_YUV422P:
|
2316 |
case PIX_FMT_YUV420P:
|
2317 |
case PIX_FMT_GRAY8:
|
2318 |
// case PIX_FMT_YUV411P:
|
2319 |
// case PIX_FMT_YUV410P:
|
2320 |
s->colorspace_type= 0;
|
2321 |
break;
|
2322 |
/* case PIX_FMT_RGB32:
|
2323 |
s->colorspace= 1;
|
2324 |
break;*/
|
2325 |
default:
|
2326 |
av_log(avctx, AV_LOG_ERROR, "pixel format not supported\n");
|
2327 |
return -1; |
2328 |
} |
2329 |
// avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift);
|
2330 |
s->chroma_h_shift= 1;
|
2331 |
s->chroma_v_shift= 1;
|
2332 |
|
2333 |
ff_set_cmp(&s->dsp, s->dsp.me_cmp, s->avctx->me_cmp); |
2334 |
ff_set_cmp(&s->dsp, s->dsp.me_sub_cmp, s->avctx->me_sub_cmp); |
2335 |
|
2336 |
s->avctx->get_buffer(s->avctx, &s->input_picture); |
2337 |
|
2338 |
if(s->avctx->me_method == ME_ITER){
|
2339 |
int i;
|
2340 |
int size= s->b_width * s->b_height << 2*s->block_max_depth; |
2341 |
for(i=0; i<s->max_ref_frames; i++){ |
2342 |
s->ref_mvs[i]= av_mallocz(size*sizeof(int16_t[2])); |
2343 |
s->ref_scores[i]= av_mallocz(size*sizeof(uint32_t));
|
2344 |
} |
2345 |
} |
2346 |
|
2347 |
return 0; |
2348 |
} |
2349 |
|
2350 |
//near copy & paste from dsputil, FIXME
|
2351 |
static int pix_sum(uint8_t * pix, int line_size, int w) |
2352 |
{ |
2353 |
int s, i, j;
|
2354 |
|
2355 |
s = 0;
|
2356 |
for (i = 0; i < w; i++) { |
2357 |
for (j = 0; j < w; j++) { |
2358 |
s += pix[0];
|
2359 |
pix ++; |
2360 |
} |
2361 |
pix += line_size - w; |
2362 |
} |
2363 |
return s;
|
2364 |
} |
2365 |
|
2366 |
//near copy & paste from dsputil, FIXME
|
2367 |
static int pix_norm1(uint8_t * pix, int line_size, int w) |
2368 |
{ |
2369 |
int s, i, j;
|
2370 |
uint32_t *sq = ff_squareTbl + 256;
|
2371 |
|
2372 |
s = 0;
|
2373 |
for (i = 0; i < w; i++) { |
2374 |
for (j = 0; j < w; j ++) { |
2375 |
s += sq[pix[0]];
|
2376 |
pix ++; |
2377 |
} |
2378 |
pix += line_size - w; |
2379 |
} |
2380 |
return s;
|
2381 |
} |
2382 |
|
2383 |
//FIXME copy&paste
|
2384 |
#define P_LEFT P[1] |
2385 |
#define P_TOP P[2] |
2386 |
#define P_TOPRIGHT P[3] |
2387 |
#define P_MEDIAN P[4] |
2388 |
#define P_MV1 P[9] |
2389 |
#define FLAG_QPEL 1 //must be 1 |
2390 |
|
2391 |
static int encode_q_branch(SnowContext *s, int level, int x, int y){ |
2392 |
uint8_t p_buffer[1024];
|
2393 |
uint8_t i_buffer[1024];
|
2394 |
uint8_t p_state[sizeof(s->block_state)];
|
2395 |
uint8_t i_state[sizeof(s->block_state)];
|
2396 |
RangeCoder pc, ic; |
2397 |
uint8_t *pbbak= s->c.bytestream; |
2398 |
uint8_t *pbbak_start= s->c.bytestream_start; |
2399 |
int score, score2, iscore, i_len, p_len, block_s, sum, base_bits;
|
2400 |
const int w= s->b_width << s->block_max_depth; |
2401 |
const int h= s->b_height << s->block_max_depth; |
2402 |
const int rem_depth= s->block_max_depth - level; |
2403 |
const int index= (x + y*w) << rem_depth; |
2404 |
const int block_w= 1<<(LOG2_MB_SIZE - level); |
2405 |
int trx= (x+1)<<rem_depth; |
2406 |
int try= (y+1)<<rem_depth; |
2407 |
const BlockNode *left = x ? &s->block[index-1] : &null_block; |
2408 |
const BlockNode *top = y ? &s->block[index-w] : &null_block;
|
2409 |
const BlockNode *right = trx<w ? &s->block[index+1] : &null_block; |
2410 |
const BlockNode *bottom= try<h ? &s->block[index+w] : &null_block;
|
2411 |
const BlockNode *tl = y && x ? &s->block[index-w-1] : left; |
2412 |
const BlockNode *tr = y && trx<w && ((x&1)==0 || level==0) ? &s->block[index-w+(1<<rem_depth)] : tl; //FIXME use lt |
2413 |
int pl = left->color[0]; |
2414 |
int pcb= left->color[1]; |
2415 |
int pcr= left->color[2]; |
2416 |
int pmx, pmy;
|
2417 |
int mx=0, my=0; |
2418 |
int l,cr,cb;
|
2419 |
const int stride= s->current_picture.linesize[0]; |
2420 |
const int uvstride= s->current_picture.linesize[1]; |
2421 |
uint8_t *current_data[3]= { s->input_picture.data[0] + (x + y* stride)*block_w, |
2422 |
s->input_picture.data[1] + (x + y*uvstride)*block_w/2, |
2423 |
s->input_picture.data[2] + (x + y*uvstride)*block_w/2}; |
2424 |
int P[10][2]; |
2425 |
int16_t last_mv[3][2]; |
2426 |
int qpel= !!(s->avctx->flags & CODEC_FLAG_QPEL); //unused |
2427 |
const int shift= 1+qpel; |
2428 |
MotionEstContext *c= &s->m.me; |
2429 |
int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref); |
2430 |
int mx_context= av_log2(2*FFABS(left->mx - top->mx)); |
2431 |
int my_context= av_log2(2*FFABS(left->my - top->my)); |
2432 |
int s_context= 2*left->level + 2*top->level + tl->level + tr->level; |
2433 |
int ref, best_ref, ref_score, ref_mx, ref_my;
|
2434 |
|
2435 |
assert(sizeof(s->block_state) >= 256); |
2436 |
if(s->keyframe){
|
2437 |
set_blocks(s, level, x, y, pl, pcb, pcr, 0, 0, 0, BLOCK_INTRA); |
2438 |
return 0; |
2439 |
} |
2440 |
|
2441 |
// clip predictors / edge ?
|
2442 |
|
2443 |
P_LEFT[0]= left->mx;
|
2444 |
P_LEFT[1]= left->my;
|
2445 |
P_TOP [0]= top->mx;
|
2446 |
P_TOP [1]= top->my;
|
2447 |
P_TOPRIGHT[0]= tr->mx;
|
2448 |
P_TOPRIGHT[1]= tr->my;
|
2449 |
|
2450 |
last_mv[0][0]= s->block[index].mx; |
2451 |
last_mv[0][1]= s->block[index].my; |
2452 |
last_mv[1][0]= right->mx; |
2453 |
last_mv[1][1]= right->my; |
2454 |
last_mv[2][0]= bottom->mx; |
2455 |
last_mv[2][1]= bottom->my; |
2456 |
|
2457 |
s->m.mb_stride=2;
|
2458 |
s->m.mb_x= |
2459 |
s->m.mb_y= 0;
|
2460 |
c->skip= 0;
|
2461 |
|
2462 |
assert(c-> stride == stride); |
2463 |
assert(c->uvstride == uvstride); |
2464 |
|
2465 |
c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp); |
2466 |
c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp); |
2467 |
c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp); |
2468 |
c->current_mv_penalty= c->mv_penalty[s->m.f_code=1] + MAX_MV;
|
2469 |
|
2470 |
c->xmin = - x*block_w - 16+3; |
2471 |
c->ymin = - y*block_w - 16+3; |
2472 |
c->xmax = - (x+1)*block_w + (w<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-3; |
2473 |
c->ymax = - (y+1)*block_w + (h<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-3; |
2474 |
|
2475 |
if(P_LEFT[0] > (c->xmax<<shift)) P_LEFT[0] = (c->xmax<<shift); |
2476 |
if(P_LEFT[1] > (c->ymax<<shift)) P_LEFT[1] = (c->ymax<<shift); |
2477 |
if(P_TOP[0] > (c->xmax<<shift)) P_TOP[0] = (c->xmax<<shift); |
2478 |
if(P_TOP[1] > (c->ymax<<shift)) P_TOP[1] = (c->ymax<<shift); |
2479 |
if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift); |
2480 |
if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift); //due to pmx no clip |
2481 |
if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift); |
2482 |
|
2483 |
P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]); |
2484 |
P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]); |
2485 |
|
2486 |
if (!y) {
|
2487 |
c->pred_x= P_LEFT[0];
|
2488 |
c->pred_y= P_LEFT[1];
|
2489 |
} else {
|
2490 |
c->pred_x = P_MEDIAN[0];
|
2491 |
c->pred_y = P_MEDIAN[1];
|
2492 |
} |
2493 |
|
2494 |
score= INT_MAX; |
2495 |
best_ref= 0;
|
2496 |
for(ref=0; ref<s->ref_frames; ref++){ |
2497 |
init_ref(c, current_data, s->last_picture[ref].data, NULL, block_w*x, block_w*y, 0); |
2498 |
|
2499 |
ref_score= ff_epzs_motion_search(&s->m, &ref_mx, &ref_my, P, 0, /*ref_index*/ 0, last_mv, |
2500 |
(1<<16)>>shift, level-LOG2_MB_SIZE+4, block_w); |
2501 |
|
2502 |
assert(ref_mx >= c->xmin); |
2503 |
assert(ref_mx <= c->xmax); |
2504 |
assert(ref_my >= c->ymin); |
2505 |
assert(ref_my <= c->ymax); |
2506 |
|
2507 |
ref_score= c->sub_motion_search(&s->m, &ref_mx, &ref_my, ref_score, 0, 0, level-LOG2_MB_SIZE+4, block_w); |
2508 |
ref_score= ff_get_mb_score(&s->m, ref_mx, ref_my, 0, 0, level-LOG2_MB_SIZE+4, block_w, 0); |
2509 |
ref_score+= 2*av_log2(2*ref)*c->penalty_factor; |
2510 |
if(s->ref_mvs[ref]){
|
2511 |
s->ref_mvs[ref][index][0]= ref_mx;
|
2512 |
s->ref_mvs[ref][index][1]= ref_my;
|
2513 |
s->ref_scores[ref][index]= ref_score; |
2514 |
} |
2515 |
if(score > ref_score){
|
2516 |
score= ref_score; |
2517 |
best_ref= ref; |
2518 |
mx= ref_mx; |
2519 |
my= ref_my; |
2520 |
} |
2521 |
} |
2522 |
//FIXME if mb_cmp != SSE then intra cannot be compared currently and mb_penalty vs. lambda2
|
2523 |
|
2524 |
// subpel search
|
2525 |
base_bits= get_rac_count(&s->c) - 8*(s->c.bytestream - s->c.bytestream_start);
|
2526 |
pc= s->c; |
2527 |
pc.bytestream_start= |
2528 |
pc.bytestream= p_buffer; //FIXME end/start? and at the other stoo
|
2529 |
memcpy(p_state, s->block_state, sizeof(s->block_state));
|
2530 |
|
2531 |
if(level!=s->block_max_depth)
|
2532 |
put_rac(&pc, &p_state[4 + s_context], 1); |
2533 |
put_rac(&pc, &p_state[1 + left->type + top->type], 0); |
2534 |
if(s->ref_frames > 1) |
2535 |
put_symbol(&pc, &p_state[128 + 1024 + 32*ref_context], best_ref, 0); |
2536 |
pred_mv(s, &pmx, &pmy, best_ref, left, top, tr); |
2537 |
put_symbol(&pc, &p_state[128 + 32*(mx_context + 16*!!best_ref)], mx - pmx, 1); |
2538 |
put_symbol(&pc, &p_state[128 + 32*(my_context + 16*!!best_ref)], my - pmy, 1); |
2539 |
p_len= pc.bytestream - pc.bytestream_start; |
2540 |
score += (s->lambda2*(get_rac_count(&pc)-base_bits))>>FF_LAMBDA_SHIFT; |
2541 |
|
2542 |
block_s= block_w*block_w; |
2543 |
sum = pix_sum(current_data[0], stride, block_w);
|
2544 |
l= (sum + block_s/2)/block_s;
|
2545 |
iscore = pix_norm1(current_data[0], stride, block_w) - 2*l*sum + l*l*block_s; |
2546 |
|
2547 |
block_s= block_w*block_w>>2;
|
2548 |
sum = pix_sum(current_data[1], uvstride, block_w>>1); |
2549 |
cb= (sum + block_s/2)/block_s;
|
2550 |
// iscore += pix_norm1(¤t_mb[1][0], uvstride, block_w>>1) - 2*cb*sum + cb*cb*block_s;
|
2551 |
sum = pix_sum(current_data[2], uvstride, block_w>>1); |
2552 |
cr= (sum + block_s/2)/block_s;
|
2553 |
// iscore += pix_norm1(¤t_mb[2][0], uvstride, block_w>>1) - 2*cr*sum + cr*cr*block_s;
|
2554 |
|
2555 |
ic= s->c; |
2556 |
ic.bytestream_start= |
2557 |
ic.bytestream= i_buffer; //FIXME end/start? and at the other stoo
|
2558 |
memcpy(i_state, s->block_state, sizeof(s->block_state));
|
2559 |
if(level!=s->block_max_depth)
|
2560 |
put_rac(&ic, &i_state[4 + s_context], 1); |
2561 |
put_rac(&ic, &i_state[1 + left->type + top->type], 1); |
2562 |
put_symbol(&ic, &i_state[32], l-pl , 1); |
2563 |
put_symbol(&ic, &i_state[64], cb-pcb, 1); |
2564 |
put_symbol(&ic, &i_state[96], cr-pcr, 1); |
2565 |
i_len= ic.bytestream - ic.bytestream_start; |
2566 |
iscore += (s->lambda2*(get_rac_count(&ic)-base_bits))>>FF_LAMBDA_SHIFT; |
2567 |
|
2568 |
// assert(score==256*256*256*64-1);
|
2569 |
assert(iscore < 255*255*256 + s->lambda2*10); |
2570 |
assert(iscore >= 0);
|
2571 |
assert(l>=0 && l<=255); |
2572 |
assert(pl>=0 && pl<=255); |
2573 |
|
2574 |
if(level==0){ |
2575 |
int varc= iscore >> 8; |
2576 |
int vard= score >> 8; |
2577 |
if (vard <= 64 || vard < varc) |
2578 |
c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc); |
2579 |
else
|
2580 |
c->scene_change_score+= s->m.qscale; |
2581 |
} |
2582 |
|
2583 |
if(level!=s->block_max_depth){
|
2584 |
put_rac(&s->c, &s->block_state[4 + s_context], 0); |
2585 |
score2 = encode_q_branch(s, level+1, 2*x+0, 2*y+0); |
2586 |
score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+0); |
2587 |
score2+= encode_q_branch(s, level+1, 2*x+0, 2*y+1); |
2588 |
score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+1); |
2589 |
score2+= s->lambda2>>FF_LAMBDA_SHIFT; //FIXME exact split overhead
|
2590 |
|
2591 |
if(score2 < score && score2 < iscore)
|
2592 |
return score2;
|
2593 |
} |
2594 |
|
2595 |
if(iscore < score){
|
2596 |
pred_mv(s, &pmx, &pmy, 0, left, top, tr);
|
2597 |
memcpy(pbbak, i_buffer, i_len); |
2598 |
s->c= ic; |
2599 |
s->c.bytestream_start= pbbak_start; |
2600 |
s->c.bytestream= pbbak + i_len; |
2601 |
set_blocks(s, level, x, y, l, cb, cr, pmx, pmy, 0, BLOCK_INTRA);
|
2602 |
memcpy(s->block_state, i_state, sizeof(s->block_state));
|
2603 |
return iscore;
|
2604 |
}else{
|
2605 |
memcpy(pbbak, p_buffer, p_len); |
2606 |
s->c= pc; |
2607 |
s->c.bytestream_start= pbbak_start; |
2608 |
s->c.bytestream= pbbak + p_len; |
2609 |
set_blocks(s, level, x, y, pl, pcb, pcr, mx, my, best_ref, 0);
|
2610 |
memcpy(s->block_state, p_state, sizeof(s->block_state));
|
2611 |
return score;
|
2612 |
} |
2613 |
} |
2614 |
|
2615 |
static void encode_q_branch2(SnowContext *s, int level, int x, int y){ |
2616 |
const int w= s->b_width << s->block_max_depth; |
2617 |
const int rem_depth= s->block_max_depth - level; |
2618 |
const int index= (x + y*w) << rem_depth; |
2619 |
int trx= (x+1)<<rem_depth; |
2620 |
BlockNode *b= &s->block[index]; |
2621 |
const BlockNode *left = x ? &s->block[index-1] : &null_block; |
2622 |
const BlockNode *top = y ? &s->block[index-w] : &null_block;
|
2623 |
const BlockNode *tl = y && x ? &s->block[index-w-1] : left; |
2624 |
const BlockNode *tr = y && trx<w && ((x&1)==0 || level==0) ? &s->block[index-w+(1<<rem_depth)] : tl; //FIXME use lt |
2625 |
int pl = left->color[0]; |
2626 |
int pcb= left->color[1]; |
2627 |
int pcr= left->color[2]; |
2628 |
int pmx, pmy;
|
2629 |
int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref); |
2630 |
int mx_context= av_log2(2*FFABS(left->mx - top->mx)) + 16*!!b->ref; |
2631 |
int my_context= av_log2(2*FFABS(left->my - top->my)) + 16*!!b->ref; |
2632 |
int s_context= 2*left->level + 2*top->level + tl->level + tr->level; |
2633 |
|
2634 |
if(s->keyframe){
|
2635 |
set_blocks(s, level, x, y, pl, pcb, pcr, 0, 0, 0, BLOCK_INTRA); |
2636 |
return;
|
2637 |
} |
2638 |
|
2639 |
if(level!=s->block_max_depth){
|
2640 |
if(same_block(b,b+1) && same_block(b,b+w) && same_block(b,b+w+1)){ |
2641 |
put_rac(&s->c, &s->block_state[4 + s_context], 1); |
2642 |
}else{
|
2643 |
put_rac(&s->c, &s->block_state[4 + s_context], 0); |
2644 |
encode_q_branch2(s, level+1, 2*x+0, 2*y+0); |
2645 |
encode_q_branch2(s, level+1, 2*x+1, 2*y+0); |
2646 |
encode_q_branch2(s, level+1, 2*x+0, 2*y+1); |
2647 |
encode_q_branch2(s, level+1, 2*x+1, 2*y+1); |
2648 |
return;
|
2649 |
} |
2650 |
} |
2651 |
if(b->type & BLOCK_INTRA){
|
2652 |
pred_mv(s, &pmx, &pmy, 0, left, top, tr);
|
2653 |
put_rac(&s->c, &s->block_state[1 + (left->type&1) + (top->type&1)], 1); |
2654 |
put_symbol(&s->c, &s->block_state[32], b->color[0]-pl , 1); |
2655 |
put_symbol(&s->c, &s->block_state[64], b->color[1]-pcb, 1); |
2656 |
put_symbol(&s->c, &s->block_state[96], b->color[2]-pcr, 1); |
2657 |
set_blocks(s, level, x, y, b->color[0], b->color[1], b->color[2], pmx, pmy, 0, BLOCK_INTRA); |
2658 |
}else{
|
2659 |
pred_mv(s, &pmx, &pmy, b->ref, left, top, tr); |
2660 |
put_rac(&s->c, &s->block_state[1 + (left->type&1) + (top->type&1)], 0); |
2661 |
if(s->ref_frames > 1) |
2662 |
put_symbol(&s->c, &s->block_state[128 + 1024 + 32*ref_context], b->ref, 0); |
2663 |
put_symbol(&s->c, &s->block_state[128 + 32*mx_context], b->mx - pmx, 1); |
2664 |
put_symbol(&s->c, &s->block_state[128 + 32*my_context], b->my - pmy, 1); |
2665 |
set_blocks(s, level, x, y, pl, pcb, pcr, b->mx, b->my, b->ref, 0);
|
2666 |
} |
2667 |
} |
2668 |
|
2669 |
static int get_dc(SnowContext *s, int mb_x, int mb_y, int plane_index){ |
2670 |
int i, x2, y2;
|
2671 |
Plane *p= &s->plane[plane_index]; |
2672 |
const int block_size = MB_SIZE >> s->block_max_depth; |
2673 |
const int block_w = plane_index ? block_size/2 : block_size; |
2674 |
const uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth]; |
2675 |
const int obmc_stride= plane_index ? block_size : 2*block_size; |
2676 |
const int ref_stride= s->current_picture.linesize[plane_index]; |
2677 |
uint8_t *src= s-> input_picture.data[plane_index]; |
2678 |
IDWTELEM *dst= (IDWTELEM*)s->m.obmc_scratchpad + plane_index*block_size*block_size*4; //FIXME change to unsigned |
2679 |
const int b_stride = s->b_width << s->block_max_depth; |
2680 |
const int w= p->width; |
2681 |
const int h= p->height; |
2682 |
int index= mb_x + mb_y*b_stride;
|
2683 |
BlockNode *b= &s->block[index]; |
2684 |
BlockNode backup= *b; |
2685 |
int ab=0; |
2686 |
int aa=0; |
2687 |
|
2688 |
b->type|= BLOCK_INTRA; |
2689 |
b->color[plane_index]= 0;
|
2690 |
memset(dst, 0, obmc_stride*obmc_stride*sizeof(IDWTELEM)); |
2691 |
|
2692 |
for(i=0; i<4; i++){ |
2693 |
int mb_x2= mb_x + (i &1) - 1; |
2694 |
int mb_y2= mb_y + (i>>1) - 1; |
2695 |
int x= block_w*mb_x2 + block_w/2; |
2696 |
int y= block_w*mb_y2 + block_w/2; |
2697 |
|
2698 |
add_yblock(s, 0, NULL, dst + ((i&1)+(i>>1)*obmc_stride)*block_w, NULL, obmc, |
2699 |
x, y, block_w, block_w, w, h, obmc_stride, ref_stride, obmc_stride, mb_x2, mb_y2, 0, 0, plane_index); |
2700 |
|
2701 |
for(y2= FFMAX(y, 0); y2<FFMIN(h, y+block_w); y2++){ |
2702 |
for(x2= FFMAX(x, 0); x2<FFMIN(w, x+block_w); x2++){ |
2703 |
int index= x2-(block_w*mb_x - block_w/2) + (y2-(block_w*mb_y - block_w/2))*obmc_stride; |
2704 |
int obmc_v= obmc[index];
|
2705 |
int d;
|
2706 |
if(y<0) obmc_v += obmc[index + block_w*obmc_stride]; |
2707 |
if(x<0) obmc_v += obmc[index + block_w]; |
2708 |
if(y+block_w>h) obmc_v += obmc[index - block_w*obmc_stride];
|
2709 |
if(x+block_w>w) obmc_v += obmc[index - block_w];
|
2710 |
//FIXME precalculate this or simplify it somehow else
|
2711 |
|
2712 |
d = -dst[index] + (1<<(FRAC_BITS-1)); |
2713 |
dst[index] = d; |
2714 |
ab += (src[x2 + y2*ref_stride] - (d>>FRAC_BITS)) * obmc_v; |
2715 |
aa += obmc_v * obmc_v; //FIXME precalculate this
|
2716 |
} |
2717 |
} |
2718 |
} |
2719 |
*b= backup; |
2720 |
|
2721 |
return av_clip(((ab<<LOG2_OBMC_MAX) + aa/2)/aa, 0, 255); //FIXME we should not need clipping |
2722 |
} |
2723 |
|
2724 |
static inline int get_block_bits(SnowContext *s, int x, int y, int w){ |
2725 |
const int b_stride = s->b_width << s->block_max_depth; |
2726 |
const int b_height = s->b_height<< s->block_max_depth; |
2727 |
int index= x + y*b_stride;
|
2728 |
const BlockNode *b = &s->block[index];
|
2729 |
const BlockNode *left = x ? &s->block[index-1] : &null_block; |
2730 |
const BlockNode *top = y ? &s->block[index-b_stride] : &null_block;
|
2731 |
const BlockNode *tl = y && x ? &s->block[index-b_stride-1] : left; |
2732 |
const BlockNode *tr = y && x+w<b_stride ? &s->block[index-b_stride+w] : tl;
|
2733 |
int dmx, dmy;
|
2734 |
// int mx_context= av_log2(2*FFABS(left->mx - top->mx));
|
2735 |
// int my_context= av_log2(2*FFABS(left->my - top->my));
|
2736 |
|
2737 |
if(x<0 || x>=b_stride || y>=b_height) |
2738 |
return 0; |
2739 |
/*
|
2740 |
1 0 0
|
2741 |
01X 1-2 1
|
2742 |
001XX 3-6 2-3
|
2743 |
0001XXX 7-14 4-7
|
2744 |
00001XXXX 15-30 8-15
|
2745 |
*/
|
2746 |
//FIXME try accurate rate
|
2747 |
//FIXME intra and inter predictors if surrounding blocks are not the same type
|
2748 |
if(b->type & BLOCK_INTRA){
|
2749 |
return 3+2*( av_log2(2*FFABS(left->color[0] - b->color[0])) |
2750 |
+ av_log2(2*FFABS(left->color[1] - b->color[1])) |
2751 |
+ av_log2(2*FFABS(left->color[2] - b->color[2]))); |
2752 |
}else{
|
2753 |
pred_mv(s, &dmx, &dmy, b->ref, left, top, tr); |
2754 |
dmx-= b->mx; |
2755 |
dmy-= b->my; |
2756 |
return 2*(1 + av_log2(2*FFABS(dmx)) //FIXME kill the 2* can be merged in lambda |
2757 |
+ av_log2(2*FFABS(dmy))
|
2758 |
+ av_log2(2*b->ref));
|
2759 |
} |
2760 |
} |
2761 |
|
2762 |
static int get_block_rd(SnowContext *s, int mb_x, int mb_y, int plane_index, const uint8_t *obmc_edged){ |
2763 |
Plane *p= &s->plane[plane_index]; |
2764 |
const int block_size = MB_SIZE >> s->block_max_depth; |
2765 |
const int block_w = plane_index ? block_size/2 : block_size; |
2766 |
const int obmc_stride= plane_index ? block_size : 2*block_size; |
2767 |
const int ref_stride= s->current_picture.linesize[plane_index]; |
2768 |
uint8_t *dst= s->current_picture.data[plane_index]; |
2769 |
uint8_t *src= s-> input_picture.data[plane_index]; |
2770 |
IDWTELEM *pred= (IDWTELEM*)s->m.obmc_scratchpad + plane_index*block_size*block_size*4;
|
2771 |
uint8_t *cur = s->scratchbuf; |
2772 |
uint8_t tmp[ref_stride*(2*MB_SIZE+HTAPS_MAX-1)]; |
2773 |
const int b_stride = s->b_width << s->block_max_depth; |
2774 |
const int b_height = s->b_height<< s->block_max_depth; |
2775 |
const int w= p->width; |
2776 |
const int h= p->height; |
2777 |
int distortion;
|
2778 |
int rate= 0; |
2779 |
const int penalty_factor= get_penalty_factor(s->lambda, s->lambda2, s->avctx->me_cmp); |
2780 |
int sx= block_w*mb_x - block_w/2; |
2781 |
int sy= block_w*mb_y - block_w/2; |
2782 |
int x0= FFMAX(0,-sx); |
2783 |
int y0= FFMAX(0,-sy); |
2784 |
int x1= FFMIN(block_w*2, w-sx); |
2785 |
int y1= FFMIN(block_w*2, h-sy); |
2786 |
int i,x,y;
|
2787 |
|
2788 |
pred_block(s, cur, tmp, ref_stride, sx, sy, block_w*2, block_w*2, &s->block[mb_x + mb_y*b_stride], plane_index, w, h); |
2789 |
|
2790 |
for(y=y0; y<y1; y++){
|
2791 |
const uint8_t *obmc1= obmc_edged + y*obmc_stride;
|
2792 |
const IDWTELEM *pred1 = pred + y*obmc_stride;
|
2793 |
uint8_t *cur1 = cur + y*ref_stride; |
2794 |
uint8_t *dst1 = dst + sx + (sy+y)*ref_stride; |
2795 |
for(x=x0; x<x1; x++){
|
2796 |
#if FRAC_BITS >= LOG2_OBMC_MAX
|
2797 |
int v = (cur1[x] * obmc1[x]) << (FRAC_BITS - LOG2_OBMC_MAX);
|
2798 |
#else
|
2799 |
int v = (cur1[x] * obmc1[x] + (1<<(LOG2_OBMC_MAX - FRAC_BITS-1))) >> (LOG2_OBMC_MAX - FRAC_BITS); |
2800 |
#endif
|
2801 |
v = (v + pred1[x]) >> FRAC_BITS; |
2802 |
if(v&(~255)) v= ~(v>>31); |
2803 |
dst1[x] = v; |
2804 |
} |
2805 |
} |
2806 |
|
2807 |
/* copy the regions where obmc[] = (uint8_t)256 */
|
2808 |
if(LOG2_OBMC_MAX == 8 |
2809 |
&& (mb_x == 0 || mb_x == b_stride-1) |
2810 |
&& (mb_y == 0 || mb_y == b_height-1)){ |
2811 |
if(mb_x == 0) |
2812 |
x1 = block_w; |
2813 |
else
|
2814 |
x0 = block_w; |
2815 |
if(mb_y == 0) |
2816 |
y1 = block_w; |
2817 |
else
|
2818 |
y0 = block_w; |
2819 |
for(y=y0; y<y1; y++)
|
2820 |
memcpy(dst + sx+x0 + (sy+y)*ref_stride, cur + x0 + y*ref_stride, x1-x0); |
2821 |
} |
2822 |
|
2823 |
if(block_w==16){ |
2824 |
/* FIXME rearrange dsputil to fit 32x32 cmp functions */
|
2825 |
/* FIXME check alignment of the cmp wavelet vs the encoding wavelet */
|
2826 |
/* FIXME cmps overlap but do not cover the wavelet's whole support.
|
2827 |
* So improving the score of one block is not strictly guaranteed
|
2828 |
* to improve the score of the whole frame, thus iterative motion
|
2829 |
* estimation does not always converge. */
|
2830 |
if(s->avctx->me_cmp == FF_CMP_W97)
|
2831 |
distortion = ff_w97_32_c(&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, 32);
|
2832 |
else if(s->avctx->me_cmp == FF_CMP_W53) |
2833 |
distortion = ff_w53_32_c(&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, 32);
|
2834 |
else{
|
2835 |
distortion = 0;
|
2836 |
for(i=0; i<4; i++){ |
2837 |
int off = sx+16*(i&1) + (sy+16*(i>>1))*ref_stride; |
2838 |
distortion += s->dsp.me_cmp[0](&s->m, src + off, dst + off, ref_stride, 16); |
2839 |
} |
2840 |
} |
2841 |
}else{
|
2842 |
assert(block_w==8);
|
2843 |
distortion = s->dsp.me_cmp[0](&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, block_w*2); |
2844 |
} |
2845 |
|
2846 |
if(plane_index==0){ |
2847 |
for(i=0; i<4; i++){ |
2848 |
/* ..RRr
|
2849 |
* .RXx.
|
2850 |
* rxx..
|
2851 |
*/
|
2852 |
rate += get_block_bits(s, mb_x + (i&1) - (i>>1), mb_y + (i>>1), 1); |
2853 |
} |
2854 |
if(mb_x == b_stride-2) |
2855 |
rate += get_block_bits(s, mb_x + 1, mb_y + 1, 1); |
2856 |
} |
2857 |
return distortion + rate*penalty_factor;
|
2858 |
} |
2859 |
|
2860 |
static int get_4block_rd(SnowContext *s, int mb_x, int mb_y, int plane_index){ |
2861 |
int i, y2;
|
2862 |
Plane *p= &s->plane[plane_index]; |
2863 |
const int block_size = MB_SIZE >> s->block_max_depth; |
2864 |
const int block_w = plane_index ? block_size/2 : block_size; |
2865 |
const uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth]; |
2866 |
const int obmc_stride= plane_index ? block_size : 2*block_size; |
2867 |
const int ref_stride= s->current_picture.linesize[plane_index]; |
2868 |
uint8_t *dst= s->current_picture.data[plane_index]; |
2869 |
uint8_t *src= s-> input_picture.data[plane_index]; |
2870 |
//FIXME zero_dst is const but add_yblock changes dst if add is 0 (this is never the case for dst=zero_dst
|
2871 |
// const has only been removed from zero_dst to suppress a warning
|
2872 |
static IDWTELEM zero_dst[4096]; //FIXME |
2873 |
const int b_stride = s->b_width << s->block_max_depth; |
2874 |
const int w= p->width; |
2875 |
const int h= p->height; |
2876 |
int distortion= 0; |
2877 |
int rate= 0; |
2878 |
const int penalty_factor= get_penalty_factor(s->lambda, s->lambda2, s->avctx->me_cmp); |
2879 |
|
2880 |
for(i=0; i<9; i++){ |
2881 |
int mb_x2= mb_x + (i%3) - 1; |
2882 |
int mb_y2= mb_y + (i/3) - 1; |
2883 |
int x= block_w*mb_x2 + block_w/2; |
2884 |
int y= block_w*mb_y2 + block_w/2; |
2885 |
|
2886 |
add_yblock(s, 0, NULL, zero_dst, dst, obmc, |
2887 |
x, y, block_w, block_w, w, h, /*dst_stride*/0, ref_stride, obmc_stride, mb_x2, mb_y2, 1, 1, plane_index); |
2888 |
|
2889 |
//FIXME find a cleaner/simpler way to skip the outside stuff
|
2890 |
for(y2= y; y2<0; y2++) |
2891 |
memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, block_w); |
2892 |
for(y2= h; y2<y+block_w; y2++)
|
2893 |
memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, block_w); |
2894 |
if(x<0){ |
2895 |
for(y2= y; y2<y+block_w; y2++)
|
2896 |
memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, -x); |
2897 |
} |
2898 |
if(x+block_w > w){
|
2899 |
for(y2= y; y2<y+block_w; y2++)
|
2900 |
memcpy(dst + w + y2*ref_stride, src + w + y2*ref_stride, x+block_w - w); |
2901 |
} |
2902 |
|
2903 |
assert(block_w== 8 || block_w==16); |
2904 |
distortion += s->dsp.me_cmp[block_w==8](&s->m, src + x + y*ref_stride, dst + x + y*ref_stride, ref_stride, block_w);
|
2905 |
} |
2906 |
|
2907 |
if(plane_index==0){ |
2908 |
BlockNode *b= &s->block[mb_x+mb_y*b_stride]; |
2909 |
int merged= same_block(b,b+1) && same_block(b,b+b_stride) && same_block(b,b+b_stride+1); |
2910 |
|
2911 |
/* ..RRRr
|
2912 |
* .RXXx.
|
2913 |
* .RXXx.
|
2914 |
* rxxx.
|
2915 |
*/
|
2916 |
if(merged)
|
2917 |
rate = get_block_bits(s, mb_x, mb_y, 2);
|
2918 |
for(i=merged?4:0; i<9; i++){ |
2919 |
static const int dxy[9][2] = {{0,0},{1,0},{0,1},{1,1},{2,0},{2,1},{-1,2},{0,2},{1,2}}; |
2920 |
rate += get_block_bits(s, mb_x + dxy[i][0], mb_y + dxy[i][1], 1); |
2921 |
} |
2922 |
} |
2923 |
return distortion + rate*penalty_factor;
|
2924 |
} |
2925 |
|
2926 |
static int encode_subband_c0run(SnowContext *s, SubBand *b, IDWTELEM *src, IDWTELEM *parent, int stride, int orientation){ |
2927 |
const int w= b->width; |
2928 |
const int h= b->height; |
2929 |
int x, y;
|
2930 |
|
2931 |
if(1){ |
2932 |
int run=0; |
2933 |
int runs[w*h];
|
2934 |
int run_index=0; |
2935 |
int max_index;
|
2936 |
|
2937 |
for(y=0; y<h; y++){ |
2938 |
for(x=0; x<w; x++){ |
2939 |
int v, p=0; |
2940 |
int /*ll=0, */l=0, lt=0, t=0, rt=0; |
2941 |
v= src[x + y*stride]; |
2942 |
|
2943 |
if(y){
|
2944 |
t= src[x + (y-1)*stride];
|
2945 |
if(x){
|
2946 |
lt= src[x - 1 + (y-1)*stride]; |
2947 |
} |
2948 |
if(x + 1 < w){ |
2949 |
rt= src[x + 1 + (y-1)*stride]; |
2950 |
} |
2951 |
} |
2952 |
if(x){
|
2953 |
l= src[x - 1 + y*stride];
|
2954 |
/*if(x > 1){
|
2955 |
if(orientation==1) ll= src[y + (x-2)*stride];
|
2956 |
else ll= src[x - 2 + y*stride];
|
2957 |
}*/
|
2958 |
} |
2959 |
if(parent){
|
2960 |
int px= x>>1; |
2961 |
int py= y>>1; |
2962 |
if(px<b->parent->width && py<b->parent->height)
|
2963 |
p= parent[px + py*2*stride];
|
2964 |
} |
2965 |
if(!(/*ll|*/l|lt|t|rt|p)){ |
2966 |
if(v){
|
2967 |
runs[run_index++]= run; |
2968 |
run=0;
|
2969 |
}else{
|
2970 |
run++; |
2971 |
} |
2972 |
} |
2973 |
} |
2974 |
} |
2975 |
max_index= run_index; |
2976 |
runs[run_index++]= run; |
2977 |
run_index=0;
|
2978 |
run= runs[run_index++]; |
2979 |
|
2980 |
put_symbol2(&s->c, b->state[30], max_index, 0); |
2981 |
if(run_index <= max_index)
|
2982 |
put_symbol2(&s->c, b->state[1], run, 3); |
2983 |
|
2984 |
for(y=0; y<h; y++){ |
2985 |
if(s->c.bytestream_end - s->c.bytestream < w*40){ |
2986 |
av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
|
2987 |
return -1; |
2988 |
} |
2989 |
for(x=0; x<w; x++){ |
2990 |
int v, p=0; |
2991 |
int /*ll=0, */l=0, lt=0, t=0, rt=0; |
2992 |
v= src[x + y*stride]; |
2993 |
|
2994 |
if(y){
|
2995 |
t= src[x + (y-1)*stride];
|
2996 |
if(x){
|
2997 |
lt= src[x - 1 + (y-1)*stride]; |
2998 |
} |
2999 |
if(x + 1 < w){ |
3000 |
rt= src[x + 1 + (y-1)*stride]; |
3001 |
} |
3002 |
} |
3003 |
if(x){
|
3004 |
l= src[x - 1 + y*stride];
|
3005 |
/*if(x > 1){
|
3006 |
if(orientation==1) ll= src[y + (x-2)*stride];
|
3007 |
else ll= src[x - 2 + y*stride];
|
3008 |
}*/
|
3009 |
} |
3010 |
if(parent){
|
3011 |
int px= x>>1; |
3012 |
int py= y>>1; |
3013 |
if(px<b->parent->width && py<b->parent->height)
|
3014 |
p= parent[px + py*2*stride];
|
3015 |
} |
3016 |
if(/*ll|*/l|lt|t|rt|p){ |
3017 |
int context= av_log2(/*FFABS(ll) + */3*FFABS(l) + FFABS(lt) + 2*FFABS(t) + FFABS(rt) + FFABS(p)); |
3018 |
|
3019 |
put_rac(&s->c, &b->state[0][context], !!v);
|
3020 |
}else{
|
3021 |
if(!run){
|
3022 |
run= runs[run_index++]; |
3023 |
|
3024 |
if(run_index <= max_index)
|
3025 |
put_symbol2(&s->c, b->state[1], run, 3); |
3026 |
assert(v); |
3027 |
}else{
|
3028 |
run--; |
3029 |
assert(!v); |
3030 |
} |
3031 |
} |
3032 |
if(v){
|
3033 |
int context= av_log2(/*FFABS(ll) + */3*FFABS(l) + FFABS(lt) + 2*FFABS(t) + FFABS(rt) + FFABS(p)); |
3034 |
int l2= 2*FFABS(l) + (l<0); |
3035 |
int t2= 2*FFABS(t) + (t<0); |
3036 |
|
3037 |
put_symbol2(&s->c, b->state[context + 2], FFABS(v)-1, context-4); |
3038 |
put_rac(&s->c, &b->state[0][16 + 1 + 3 + quant3bA[l2&0xFF] + 3*quant3bA[t2&0xFF]], v<0); |
3039 |
} |
3040 |
} |
3041 |
} |
3042 |
} |
3043 |
return 0; |
3044 |
} |
3045 |
|
3046 |
static int encode_subband(SnowContext *s, SubBand *b, IDWTELEM *src, IDWTELEM *parent, int stride, int orientation){ |
3047 |
// encode_subband_qtree(s, b, src, parent, stride, orientation);
|
3048 |
// encode_subband_z0run(s, b, src, parent, stride, orientation);
|
3049 |
return encode_subband_c0run(s, b, src, parent, stride, orientation);
|
3050 |
// encode_subband_dzr(s, b, src, parent, stride, orientation);
|
3051 |
} |
3052 |
|
3053 |
static av_always_inline int check_block(SnowContext *s, int mb_x, int mb_y, int p[3], int intra, const uint8_t *obmc_edged, int *best_rd){ |
3054 |
const int b_stride= s->b_width << s->block_max_depth; |
3055 |
BlockNode *block= &s->block[mb_x + mb_y * b_stride]; |
3056 |
BlockNode backup= *block; |
3057 |
int rd, index, value;
|
3058 |
|
3059 |
assert(mb_x>=0 && mb_y>=0); |
3060 |
assert(mb_x<b_stride); |
3061 |
|
3062 |
if(intra){
|
3063 |
block->color[0] = p[0]; |
3064 |
block->color[1] = p[1]; |
3065 |
block->color[2] = p[2]; |
3066 |
block->type |= BLOCK_INTRA; |
3067 |
}else{
|
3068 |
index= (p[0] + 31*p[1]) & (ME_CACHE_SIZE-1); |
3069 |
value= s->me_cache_generation + (p[0]>>10) + (p[1]<<6) + (block->ref<<12); |
3070 |
if(s->me_cache[index] == value)
|
3071 |
return 0; |
3072 |
s->me_cache[index]= value; |
3073 |
|
3074 |
block->mx= p[0];
|
3075 |
block->my= p[1];
|
3076 |
block->type &= ~BLOCK_INTRA; |
3077 |
} |
3078 |
|
3079 |
rd= get_block_rd(s, mb_x, mb_y, 0, obmc_edged);
|
3080 |
|
3081 |
//FIXME chroma
|
3082 |
if(rd < *best_rd){
|
3083 |
*best_rd= rd; |
3084 |
return 1; |
3085 |
}else{
|
3086 |
*block= backup; |
3087 |
return 0; |
3088 |
} |
3089 |
} |
3090 |
|
3091 |
/* special case for int[2] args we discard afterwards,
|
3092 |
* fixes compilation problem with gcc 2.95 */
|
3093 |
static av_always_inline int check_block_inter(SnowContext *s, int mb_x, int mb_y, int p0, int p1, const uint8_t *obmc_edged, int *best_rd){ |
3094 |
int p[2] = {p0, p1}; |
3095 |
return check_block(s, mb_x, mb_y, p, 0, obmc_edged, best_rd); |
3096 |
} |
3097 |
|
3098 |
static av_always_inline int check_4block_inter(SnowContext *s, int mb_x, int mb_y, int p0, int p1, int ref, int *best_rd){ |
3099 |
const int b_stride= s->b_width << s->block_max_depth; |
3100 |
BlockNode *block= &s->block[mb_x + mb_y * b_stride]; |
3101 |
BlockNode backup[4]= {block[0], block[1], block[b_stride], block[b_stride+1]}; |
3102 |
int rd, index, value;
|
3103 |
|
3104 |
assert(mb_x>=0 && mb_y>=0); |
3105 |
assert(mb_x<b_stride); |
3106 |
assert(((mb_x|mb_y)&1) == 0); |
3107 |
|
3108 |
index= (p0 + 31*p1) & (ME_CACHE_SIZE-1); |
3109 |
value= s->me_cache_generation + (p0>>10) + (p1<<6) + (block->ref<<12); |
3110 |
if(s->me_cache[index] == value)
|
3111 |
return 0; |
3112 |
s->me_cache[index]= value; |
3113 |
|
3114 |
block->mx= p0; |
3115 |
block->my= p1; |
3116 |
block->ref= ref; |
3117 |
block->type &= ~BLOCK_INTRA; |
3118 |
block[1]= block[b_stride]= block[b_stride+1]= *block; |
3119 |
|
3120 |
rd= get_4block_rd(s, mb_x, mb_y, 0);
|
3121 |
|
3122 |
//FIXME chroma
|
3123 |
if(rd < *best_rd){
|
3124 |
*best_rd= rd; |
3125 |
return 1; |
3126 |
}else{
|
3127 |
block[0]= backup[0]; |
3128 |
block[1]= backup[1]; |
3129 |
block[b_stride]= backup[2];
|
3130 |
block[b_stride+1]= backup[3]; |
3131 |
return 0; |
3132 |
} |
3133 |
} |
3134 |
|
3135 |
static void iterative_me(SnowContext *s){ |
3136 |
int pass, mb_x, mb_y;
|
3137 |
const int b_width = s->b_width << s->block_max_depth; |
3138 |
const int b_height= s->b_height << s->block_max_depth; |
3139 |
const int b_stride= b_width; |
3140 |
int color[3]; |
3141 |
|
3142 |
{ |
3143 |
RangeCoder r = s->c; |
3144 |
uint8_t state[sizeof(s->block_state)];
|
3145 |
memcpy(state, s->block_state, sizeof(s->block_state));
|
3146 |
for(mb_y= 0; mb_y<s->b_height; mb_y++) |
3147 |
for(mb_x= 0; mb_x<s->b_width; mb_x++) |
3148 |
encode_q_branch(s, 0, mb_x, mb_y);
|
3149 |
s->c = r; |
3150 |
memcpy(s->block_state, state, sizeof(s->block_state));
|
3151 |
} |
3152 |
|
3153 |
for(pass=0; pass<25; pass++){ |
3154 |
int change= 0; |
3155 |
|
3156 |
for(mb_y= 0; mb_y<b_height; mb_y++){ |
3157 |
for(mb_x= 0; mb_x<b_width; mb_x++){ |
3158 |
int dia_change, i, j, ref;
|
3159 |
int best_rd= INT_MAX, ref_rd;
|
3160 |
BlockNode backup, ref_b; |
3161 |
const int index= mb_x + mb_y * b_stride; |
3162 |
BlockNode *block= &s->block[index]; |
3163 |
BlockNode *tb = mb_y ? &s->block[index-b_stride ] : NULL;
|
3164 |
BlockNode *lb = mb_x ? &s->block[index -1] : NULL; |
3165 |
BlockNode *rb = mb_x+1<b_width ? &s->block[index +1] : NULL; |
3166 |
BlockNode *bb = mb_y+1<b_height ? &s->block[index+b_stride ] : NULL; |
3167 |
BlockNode *tlb= mb_x && mb_y ? &s->block[index-b_stride-1] : NULL; |
3168 |
BlockNode *trb= mb_x+1<b_width && mb_y ? &s->block[index-b_stride+1] : NULL; |
3169 |
BlockNode *blb= mb_x && mb_y+1<b_height ? &s->block[index+b_stride-1] : NULL; |
3170 |
BlockNode *brb= mb_x+1<b_width && mb_y+1<b_height ? &s->block[index+b_stride+1] : NULL; |
3171 |
const int b_w= (MB_SIZE >> s->block_max_depth); |
3172 |
uint8_t obmc_edged[b_w*2][b_w*2]; |
3173 |
|
3174 |
if(pass && (block->type & BLOCK_OPT))
|
3175 |
continue;
|
3176 |
block->type |= BLOCK_OPT; |
3177 |
|
3178 |
backup= *block; |
3179 |
|
3180 |
if(!s->me_cache_generation)
|
3181 |
memset(s->me_cache, 0, sizeof(s->me_cache)); |
3182 |
s->me_cache_generation += 1<<22; |
3183 |
|
3184 |
//FIXME precalculate
|
3185 |
{ |
3186 |
int x, y;
|
3187 |
memcpy(obmc_edged, obmc_tab[s->block_max_depth], b_w*b_w*4);
|
3188 |
if(mb_x==0) |
3189 |
for(y=0; y<b_w*2; y++) |
3190 |
memset(obmc_edged[y], obmc_edged[y][0] + obmc_edged[y][b_w-1], b_w); |
3191 |
if(mb_x==b_stride-1) |
3192 |
for(y=0; y<b_w*2; y++) |
3193 |
memset(obmc_edged[y]+b_w, obmc_edged[y][b_w] + obmc_edged[y][b_w*2-1], b_w); |
3194 |
if(mb_y==0){ |
3195 |
for(x=0; x<b_w*2; x++) |
3196 |
obmc_edged[0][x] += obmc_edged[b_w-1][x]; |
3197 |
for(y=1; y<b_w; y++) |
3198 |
memcpy(obmc_edged[y], obmc_edged[0], b_w*2); |
3199 |
} |
3200 |
if(mb_y==b_height-1){ |
3201 |
for(x=0; x<b_w*2; x++) |
3202 |
obmc_edged[b_w*2-1][x] += obmc_edged[b_w][x]; |
3203 |
for(y=b_w; y<b_w*2-1; y++) |
3204 |
memcpy(obmc_edged[y], obmc_edged[b_w*2-1], b_w*2); |
3205 |
} |
3206 |
} |
3207 |
|
3208 |
//skip stuff outside the picture
|
3209 |
if(mb_x==0 || mb_y==0 || mb_x==b_width-1 || mb_y==b_height-1){ |
3210 |
uint8_t *src= s-> input_picture.data[0];
|
3211 |
uint8_t *dst= s->current_picture.data[0];
|
3212 |
const int stride= s->current_picture.linesize[0]; |
3213 |
const int block_w= MB_SIZE >> s->block_max_depth; |
3214 |
const int sx= block_w*mb_x - block_w/2; |
3215 |
const int sy= block_w*mb_y - block_w/2; |
3216 |
const int w= s->plane[0].width; |
3217 |
const int h= s->plane[0].height; |
3218 |
int y;
|
3219 |
|
3220 |
for(y=sy; y<0; y++) |
3221 |
memcpy(dst + sx + y*stride, src + sx + y*stride, block_w*2);
|
3222 |
for(y=h; y<sy+block_w*2; y++) |
3223 |
memcpy(dst + sx + y*stride, src + sx + y*stride, block_w*2);
|
3224 |
if(sx<0){ |
3225 |
for(y=sy; y<sy+block_w*2; y++) |
3226 |
memcpy(dst + sx + y*stride, src + sx + y*stride, -sx); |
3227 |
} |
3228 |
if(sx+block_w*2 > w){ |
3229 |
for(y=sy; y<sy+block_w*2; y++) |
3230 |
memcpy(dst + w + y*stride, src + w + y*stride, sx+block_w*2 - w);
|
3231 |
} |
3232 |
} |
3233 |
|
3234 |
// intra(black) = neighbors' contribution to the current block
|
3235 |
for(i=0; i<3; i++) |
3236 |
color[i]= get_dc(s, mb_x, mb_y, i); |
3237 |
|
3238 |
// get previous score (cannot be cached due to OBMC)
|
3239 |
if(pass > 0 && (block->type&BLOCK_INTRA)){ |
3240 |
int color0[3]= {block->color[0], block->color[1], block->color[2]}; |
3241 |
check_block(s, mb_x, mb_y, color0, 1, *obmc_edged, &best_rd);
|
3242 |
}else
|
3243 |
check_block_inter(s, mb_x, mb_y, block->mx, block->my, *obmc_edged, &best_rd); |
3244 |
|
3245 |
ref_b= *block; |
3246 |
ref_rd= best_rd; |
3247 |
for(ref=0; ref < s->ref_frames; ref++){ |
3248 |
int16_t (*mvr)[2]= &s->ref_mvs[ref][index];
|
3249 |
if(s->ref_scores[ref][index] > s->ref_scores[ref_b.ref][index]*3/2) //FIXME tune threshold |
3250 |
continue;
|
3251 |
block->ref= ref; |
3252 |
best_rd= INT_MAX; |
3253 |
|
3254 |
check_block_inter(s, mb_x, mb_y, mvr[0][0], mvr[0][1], *obmc_edged, &best_rd); |
3255 |
check_block_inter(s, mb_x, mb_y, 0, 0, *obmc_edged, &best_rd); |
3256 |
if(tb)
|
3257 |
check_block_inter(s, mb_x, mb_y, mvr[-b_stride][0], mvr[-b_stride][1], *obmc_edged, &best_rd); |
3258 |
if(lb)
|
3259 |
check_block_inter(s, mb_x, mb_y, mvr[-1][0], mvr[-1][1], *obmc_edged, &best_rd); |
3260 |
if(rb)
|
3261 |
check_block_inter(s, mb_x, mb_y, mvr[1][0], mvr[1][1], *obmc_edged, &best_rd); |
3262 |
if(bb)
|
3263 |
check_block_inter(s, mb_x, mb_y, mvr[b_stride][0], mvr[b_stride][1], *obmc_edged, &best_rd); |
3264 |
|
3265 |
/* fullpel ME */
|
3266 |
//FIXME avoid subpel interpolation / round to nearest integer
|
3267 |
do{
|
3268 |
dia_change=0;
|
3269 |
for(i=0; i<FFMAX(s->avctx->dia_size, 1); i++){ |
3270 |
for(j=0; j<i; j++){ |
3271 |
dia_change |= check_block_inter(s, mb_x, mb_y, block->mx+4*(i-j), block->my+(4*j), *obmc_edged, &best_rd); |
3272 |
dia_change |= check_block_inter(s, mb_x, mb_y, block->mx-4*(i-j), block->my-(4*j), *obmc_edged, &best_rd); |
3273 |
dia_change |= check_block_inter(s, mb_x, mb_y, block->mx+4*(i-j), block->my-(4*j), *obmc_edged, &best_rd); |
3274 |
dia_change |= check_block_inter(s, mb_x, mb_y, block->mx-4*(i-j), block->my+(4*j), *obmc_edged, &best_rd); |
3275 |
} |
3276 |
} |
3277 |
}while(dia_change);
|
3278 |
/* subpel ME */
|
3279 |
do{
|
3280 |
static const int square[8][2]= {{+1, 0},{-1, 0},{ 0,+1},{ 0,-1},{+1,+1},{-1,-1},{+1,-1},{-1,+1},}; |
3281 |
dia_change=0;
|
3282 |
for(i=0; i<8; i++) |
3283 |
dia_change |= check_block_inter(s, mb_x, mb_y, block->mx+square[i][0], block->my+square[i][1], *obmc_edged, &best_rd); |
3284 |
}while(dia_change);
|
3285 |
//FIXME or try the standard 2 pass qpel or similar
|
3286 |
|
3287 |
mvr[0][0]= block->mx; |
3288 |
mvr[0][1]= block->my; |
3289 |
if(ref_rd > best_rd){
|
3290 |
ref_rd= best_rd; |
3291 |
ref_b= *block; |
3292 |
} |
3293 |
} |
3294 |
best_rd= ref_rd; |
3295 |
*block= ref_b; |
3296 |
#if 1 |
3297 |
check_block(s, mb_x, mb_y, color, 1, *obmc_edged, &best_rd);
|
3298 |
//FIXME RD style color selection
|
3299 |
#endif
|
3300 |
if(!same_block(block, &backup)){
|
3301 |
if(tb ) tb ->type &= ~BLOCK_OPT;
|
3302 |
if(lb ) lb ->type &= ~BLOCK_OPT;
|
3303 |
if(rb ) rb ->type &= ~BLOCK_OPT;
|
3304 |
if(bb ) bb ->type &= ~BLOCK_OPT;
|
3305 |
if(tlb) tlb->type &= ~BLOCK_OPT;
|
3306 |
if(trb) trb->type &= ~BLOCK_OPT;
|
3307 |
if(blb) blb->type &= ~BLOCK_OPT;
|
3308 |
if(brb) brb->type &= ~BLOCK_OPT;
|
3309 |
change ++; |
3310 |
} |
3311 |
} |
3312 |
} |
3313 |
av_log(s->avctx, AV_LOG_ERROR, "pass:%d changed:%d\n", pass, change);
|
3314 |
if(!change)
|
3315 |
break;
|
3316 |
} |
3317 |
|
3318 |
if(s->block_max_depth == 1){ |
3319 |
int change= 0; |
3320 |
for(mb_y= 0; mb_y<b_height; mb_y+=2){ |
3321 |
for(mb_x= 0; mb_x<b_width; mb_x+=2){ |
3322 |
int i;
|
3323 |
int best_rd, init_rd;
|
3324 |
const int index= mb_x + mb_y * b_stride; |
3325 |
BlockNode *b[4];
|
3326 |
|
3327 |
b[0]= &s->block[index];
|
3328 |
b[1]= b[0]+1; |
3329 |
b[2]= b[0]+b_stride; |
3330 |
b[3]= b[2]+1; |
3331 |
if(same_block(b[0], b[1]) && |
3332 |
same_block(b[0], b[2]) && |
3333 |
same_block(b[0], b[3])) |
3334 |
continue;
|
3335 |
|
3336 |
if(!s->me_cache_generation)
|
3337 |
memset(s->me_cache, 0, sizeof(s->me_cache)); |
3338 |
s->me_cache_generation += 1<<22; |
3339 |
|
3340 |
init_rd= best_rd= get_4block_rd(s, mb_x, mb_y, 0);
|
3341 |
|
3342 |
//FIXME more multiref search?
|
3343 |
check_4block_inter(s, mb_x, mb_y, |
3344 |
(b[0]->mx + b[1]->mx + b[2]->mx + b[3]->mx + 2) >> 2, |
3345 |
(b[0]->my + b[1]->my + b[2]->my + b[3]->my + 2) >> 2, 0, &best_rd); |
3346 |
|
3347 |
for(i=0; i<4; i++) |
3348 |
if(!(b[i]->type&BLOCK_INTRA))
|
3349 |
check_4block_inter(s, mb_x, mb_y, b[i]->mx, b[i]->my, b[i]->ref, &best_rd); |
3350 |
|
3351 |
if(init_rd != best_rd)
|
3352 |
change++; |
3353 |
} |
3354 |
} |
3355 |
av_log(s->avctx, AV_LOG_ERROR, "pass:4mv changed:%d\n", change*4); |
3356 |
} |
3357 |
} |
3358 |
|
3359 |
static void encode_blocks(SnowContext *s, int search){ |
3360 |
int x, y;
|
3361 |
int w= s->b_width;
|
3362 |
int h= s->b_height;
|
3363 |
|
3364 |
if(s->avctx->me_method == ME_ITER && !s->keyframe && search)
|
3365 |
iterative_me(s); |
3366 |
|
3367 |
for(y=0; y<h; y++){ |
3368 |
if(s->c.bytestream_end - s->c.bytestream < w*MB_SIZE*MB_SIZE*3){ //FIXME nicer limit |
3369 |
av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
|
3370 |
return;
|
3371 |
} |
3372 |
for(x=0; x<w; x++){ |
3373 |
if(s->avctx->me_method == ME_ITER || !search)
|
3374 |
encode_q_branch2(s, 0, x, y);
|
3375 |
else
|
3376 |
encode_q_branch (s, 0, x, y);
|
3377 |
} |
3378 |
} |
3379 |
} |
3380 |
|
3381 |
static void quantize(SnowContext *s, SubBand *b, IDWTELEM *dst, DWTELEM *src, int stride, int bias){ |
3382 |
const int w= b->width; |
3383 |
const int h= b->height; |
3384 |
const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); |
3385 |
const int qmul= qexp[qlog&(QROOT-1)]<<((qlog>>QSHIFT) + ENCODER_EXTRA_BITS); |
3386 |
int x,y, thres1, thres2;
|
3387 |
|
3388 |
if(s->qlog == LOSSLESS_QLOG){
|
3389 |
for(y=0; y<h; y++) |
3390 |
for(x=0; x<w; x++) |
3391 |
dst[x + y*stride]= src[x + y*stride]; |
3392 |
return;
|
3393 |
} |
3394 |
|
3395 |
bias= bias ? 0 : (3*qmul)>>3; |
3396 |
thres1= ((qmul - bias)>>QEXPSHIFT) - 1;
|
3397 |
thres2= 2*thres1;
|
3398 |
|
3399 |
if(!bias){
|
3400 |
for(y=0; y<h; y++){ |
3401 |
for(x=0; x<w; x++){ |
3402 |
int i= src[x + y*stride];
|
3403 |
|
3404 |
if((unsigned)(i+thres1) > thres2){ |
3405 |
if(i>=0){ |
3406 |
i<<= QEXPSHIFT; |
3407 |
i/= qmul; //FIXME optimize
|
3408 |
dst[x + y*stride]= i; |
3409 |
}else{
|
3410 |
i= -i; |
3411 |
i<<= QEXPSHIFT; |
3412 |
i/= qmul; //FIXME optimize
|
3413 |
dst[x + y*stride]= -i; |
3414 |
} |
3415 |
}else
|
3416 |
dst[x + y*stride]= 0;
|
3417 |
} |
3418 |
} |
3419 |
}else{
|
3420 |
for(y=0; y<h; y++){ |
3421 |
for(x=0; x<w; x++){ |
3422 |
int i= src[x + y*stride];
|
3423 |
|
3424 |
if((unsigned)(i+thres1) > thres2){ |
3425 |
if(i>=0){ |
3426 |
i<<= QEXPSHIFT; |
3427 |
i= (i + bias) / qmul; //FIXME optimize
|
3428 |
dst[x + y*stride]= i; |
3429 |
}else{
|
3430 |
i= -i; |
3431 |
i<<= QEXPSHIFT; |
3432 |
i= (i + bias) / qmul; //FIXME optimize
|
3433 |
dst[x + y*stride]= -i; |
3434 |
} |
3435 |
}else
|
3436 |
dst[x + y*stride]= 0;
|
3437 |
} |
3438 |
} |
3439 |
} |
3440 |
} |
3441 |
|
3442 |
static void dequantize(SnowContext *s, SubBand *b, IDWTELEM *src, int stride){ |
3443 |
const int w= b->width; |
3444 |
const int h= b->height; |
3445 |
const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); |
3446 |
const int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); |
3447 |
const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT; |
3448 |
int x,y;
|
3449 |
|
3450 |
if(s->qlog == LOSSLESS_QLOG) return; |
3451 |
|
3452 |
for(y=0; y<h; y++){ |
3453 |
for(x=0; x<w; x++){ |
3454 |
int i= src[x + y*stride];
|
3455 |
if(i<0){ |
3456 |
src[x + y*stride]= -((-i*qmul + qadd)>>(QEXPSHIFT)); //FIXME try different bias
|
3457 |
}else if(i>0){ |
3458 |
src[x + y*stride]= (( i*qmul + qadd)>>(QEXPSHIFT)); |
3459 |
} |
3460 |
} |
3461 |
} |
3462 |
} |
3463 |
|
3464 |
static void decorrelate(SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median){ |
3465 |
const int w= b->width; |
3466 |
const int h= b->height; |
3467 |
int x,y;
|
3468 |
|
3469 |
for(y=h-1; y>=0; y--){ |
3470 |
for(x=w-1; x>=0; x--){ |
3471 |
int i= x + y*stride;
|
3472 |
|
3473 |
if(x){
|
3474 |
if(use_median){
|
3475 |
if(y && x+1<w) src[i] -= mid_pred(src[i - 1], src[i - stride], src[i - stride + 1]); |
3476 |
else src[i] -= src[i - 1]; |
3477 |
}else{
|
3478 |
if(y) src[i] -= mid_pred(src[i - 1], src[i - stride], src[i - 1] + src[i - stride] - src[i - 1 - stride]); |
3479 |
else src[i] -= src[i - 1]; |
3480 |
} |
3481 |
}else{
|
3482 |
if(y) src[i] -= src[i - stride];
|
3483 |
} |
3484 |
} |
3485 |
} |
3486 |
} |
3487 |
|
3488 |
static void correlate(SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median){ |
3489 |
const int w= b->width; |
3490 |
const int h= b->height; |
3491 |
int x,y;
|
3492 |
|
3493 |
for(y=0; y<h; y++){ |
3494 |
for(x=0; x<w; x++){ |
3495 |
int i= x + y*stride;
|
3496 |
|
3497 |
if(x){
|
3498 |
if(use_median){
|
3499 |
if(y && x+1<w) src[i] += mid_pred(src[i - 1], src[i - stride], src[i - stride + 1]); |
3500 |
else src[i] += src[i - 1]; |
3501 |
}else{
|
3502 |
if(y) src[i] += mid_pred(src[i - 1], src[i - stride], src[i - 1] + src[i - stride] - src[i - 1 - stride]); |
3503 |
else src[i] += src[i - 1]; |
3504 |
} |
3505 |
}else{
|
3506 |
if(y) src[i] += src[i - stride];
|
3507 |
} |
3508 |
} |
3509 |
} |
3510 |
} |
3511 |
|
3512 |
static void encode_qlogs(SnowContext *s){ |
3513 |
int plane_index, level, orientation;
|
3514 |
|
3515 |
for(plane_index=0; plane_index<2; plane_index++){ |
3516 |
for(level=0; level<s->spatial_decomposition_count; level++){ |
3517 |
for(orientation=level ? 1:0; orientation<4; orientation++){ |
3518 |
if(orientation==2) continue; |
3519 |
put_symbol(&s->c, s->header_state, s->plane[plane_index].band[level][orientation].qlog, 1);
|
3520 |
} |
3521 |
} |
3522 |
} |
3523 |
} |
3524 |
|
3525 |
static void encode_header(SnowContext *s){ |
3526 |
int plane_index, i;
|
3527 |
uint8_t kstate[32];
|
3528 |
|
3529 |
memset(kstate, MID_STATE, sizeof(kstate));
|
3530 |
|
3531 |
put_rac(&s->c, kstate, s->keyframe); |
3532 |
if(s->keyframe || s->always_reset){
|
3533 |
reset_contexts(s); |
3534 |
s->last_spatial_decomposition_type= |
3535 |
s->last_qlog= |
3536 |
s->last_qbias= |
3537 |
s->last_mv_scale= |
3538 |
s->last_block_max_depth= 0;
|
3539 |
for(plane_index=0; plane_index<2; plane_index++){ |
3540 |
Plane *p= &s->plane[plane_index]; |
3541 |
p->last_htaps=0;
|
3542 |
p->last_diag_mc=0;
|
3543 |
memset(p->last_hcoeff, 0, sizeof(p->last_hcoeff)); |
3544 |
} |
3545 |
} |
3546 |
if(s->keyframe){
|
3547 |
put_symbol(&s->c, s->header_state, s->version, 0);
|
3548 |
put_rac(&s->c, s->header_state, s->always_reset); |
3549 |
put_symbol(&s->c, s->header_state, s->temporal_decomposition_type, 0);
|
3550 |
put_symbol(&s->c, s->header_state, s->temporal_decomposition_count, 0);
|
3551 |
put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0);
|
3552 |
put_symbol(&s->c, s->header_state, s->colorspace_type, 0);
|
3553 |
put_symbol(&s->c, s->header_state, s->chroma_h_shift, 0);
|
3554 |
put_symbol(&s->c, s->header_state, s->chroma_v_shift, 0);
|
3555 |
put_rac(&s->c, s->header_state, s->spatial_scalability); |
3556 |
// put_rac(&s->c, s->header_state, s->rate_scalability);
|
3557 |
put_symbol(&s->c, s->header_state, s->max_ref_frames-1, 0); |
3558 |
|
3559 |
encode_qlogs(s); |
3560 |
} |
3561 |
|
3562 |
if(!s->keyframe){
|
3563 |
int update_mc=0; |
3564 |
for(plane_index=0; plane_index<2; plane_index++){ |
3565 |
Plane *p= &s->plane[plane_index]; |
3566 |
update_mc |= p->last_htaps != p->htaps; |
3567 |
update_mc |= p->last_diag_mc != p->diag_mc; |
3568 |
update_mc |= !!memcmp(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff));
|
3569 |
} |
3570 |
put_rac(&s->c, s->header_state, update_mc); |
3571 |
if(update_mc){
|
3572 |
for(plane_index=0; plane_index<2; plane_index++){ |
3573 |
Plane *p= &s->plane[plane_index]; |
3574 |
put_rac(&s->c, s->header_state, p->diag_mc); |
3575 |
put_symbol(&s->c, s->header_state, p->htaps/2-1, 0); |
3576 |
for(i= p->htaps/2; i; i--) |
3577 |
put_symbol(&s->c, s->header_state, FFABS(p->hcoeff[i]), 0);
|
3578 |
} |
3579 |
} |
3580 |
if(s->last_spatial_decomposition_count != s->spatial_decomposition_count){
|
3581 |
put_rac(&s->c, s->header_state, 1);
|
3582 |
put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0);
|
3583 |
encode_qlogs(s); |
3584 |
}else
|
3585 |
put_rac(&s->c, s->header_state, 0);
|
3586 |
} |
3587 |
|
3588 |
put_symbol(&s->c, s->header_state, s->spatial_decomposition_type - s->last_spatial_decomposition_type, 1);
|
3589 |
put_symbol(&s->c, s->header_state, s->qlog - s->last_qlog , 1);
|
3590 |
put_symbol(&s->c, s->header_state, s->mv_scale - s->last_mv_scale, 1);
|
3591 |
put_symbol(&s->c, s->header_state, s->qbias - s->last_qbias , 1);
|
3592 |
put_symbol(&s->c, s->header_state, s->block_max_depth - s->last_block_max_depth, 1);
|
3593 |
|
3594 |
} |
3595 |
|
3596 |
static void update_last_header_values(SnowContext *s){ |
3597 |
int plane_index;
|
3598 |
|
3599 |
if(!s->keyframe){
|
3600 |
for(plane_index=0; plane_index<2; plane_index++){ |
3601 |
Plane *p= &s->plane[plane_index]; |
3602 |
p->last_diag_mc= p->diag_mc; |
3603 |
p->last_htaps = p->htaps; |
3604 |
memcpy(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff));
|
3605 |
} |
3606 |
} |
3607 |
|
3608 |
s->last_spatial_decomposition_type = s->spatial_decomposition_type; |
3609 |
s->last_qlog = s->qlog; |
3610 |
s->last_qbias = s->qbias; |
3611 |
s->last_mv_scale = s->mv_scale; |
3612 |
s->last_block_max_depth = s->block_max_depth; |
3613 |
s->last_spatial_decomposition_count = s->spatial_decomposition_count; |
3614 |
} |
3615 |
|
3616 |
static int qscale2qlog(int qscale){ |
3617 |
return rint(QROOT*log(qscale / (float)FF_QP2LAMBDA)/log(2)) |
3618 |
+ 61*QROOT/8; //<64 >60 |
3619 |
} |
3620 |
|
3621 |
static int ratecontrol_1pass(SnowContext *s, AVFrame *pict) |
3622 |
{ |
3623 |
/* Estimate the frame's complexity as a sum of weighted dwt coefficients.
|
3624 |
* FIXME we know exact mv bits at this point,
|
3625 |
* but ratecontrol isn't set up to include them. */
|
3626 |
uint32_t coef_sum= 0;
|
3627 |
int level, orientation, delta_qlog;
|
3628 |
|
3629 |
for(level=0; level<s->spatial_decomposition_count; level++){ |
3630 |
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
3631 |
SubBand *b= &s->plane[0].band[level][orientation];
|
3632 |
IDWTELEM *buf= b->ibuf; |
3633 |
const int w= b->width; |
3634 |
const int h= b->height; |
3635 |
const int stride= b->stride; |
3636 |
const int qlog= av_clip(2*QROOT + b->qlog, 0, QROOT*16); |
3637 |
const int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); |
3638 |
const int qdiv= (1<<16)/qmul; |
3639 |
int x, y;
|
3640 |
//FIXME this is ugly
|
3641 |
for(y=0; y<h; y++) |
3642 |
for(x=0; x<w; x++) |
3643 |
buf[x+y*stride]= b->buf[x+y*stride]; |
3644 |
if(orientation==0) |
3645 |
decorrelate(s, b, buf, stride, 1, 0); |
3646 |
for(y=0; y<h; y++) |
3647 |
for(x=0; x<w; x++) |
3648 |
coef_sum+= abs(buf[x+y*stride]) * qdiv >> 16;
|
3649 |
} |
3650 |
} |
3651 |
|
3652 |
/* ugly, ratecontrol just takes a sqrt again */
|
3653 |
coef_sum = (uint64_t)coef_sum * coef_sum >> 16;
|
3654 |
assert(coef_sum < INT_MAX); |
3655 |
|
3656 |
if(pict->pict_type == FF_I_TYPE){
|
3657 |
s->m.current_picture.mb_var_sum= coef_sum; |
3658 |
s->m.current_picture.mc_mb_var_sum= 0;
|
3659 |
}else{
|
3660 |
s->m.current_picture.mc_mb_var_sum= coef_sum; |
3661 |
s->m.current_picture.mb_var_sum= 0;
|
3662 |
} |
3663 |
|
3664 |
pict->quality= ff_rate_estimate_qscale(&s->m, 1);
|
3665 |
if (pict->quality < 0) |
3666 |
return INT_MIN;
|
3667 |
s->lambda= pict->quality * 3/2; |
3668 |
delta_qlog= qscale2qlog(pict->quality) - s->qlog; |
3669 |
s->qlog+= delta_qlog; |
3670 |
return delta_qlog;
|
3671 |
} |
3672 |
|
3673 |
static void calculate_visual_weight(SnowContext *s, Plane *p){ |
3674 |
int width = p->width;
|
3675 |
int height= p->height;
|
3676 |
int level, orientation, x, y;
|
3677 |
|
3678 |
for(level=0; level<s->spatial_decomposition_count; level++){ |
3679 |
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
3680 |
SubBand *b= &p->band[level][orientation]; |
3681 |
IDWTELEM *ibuf= b->ibuf; |
3682 |
int64_t error=0;
|
3683 |
|
3684 |
memset(s->spatial_idwt_buffer, 0, sizeof(*s->spatial_idwt_buffer)*width*height); |
3685 |
ibuf[b->width/2 + b->height/2*b->stride]= 256*16; |
3686 |
ff_spatial_idwt(s->spatial_idwt_buffer, width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count); |
3687 |
for(y=0; y<height; y++){ |
3688 |
for(x=0; x<width; x++){ |
3689 |
int64_t d= s->spatial_idwt_buffer[x + y*width]*16;
|
3690 |
error += d*d; |
3691 |
} |
3692 |
} |
3693 |
|
3694 |
b->qlog= (int)(log(352256.0/sqrt(error)) / log(pow(2.0, 1.0/QROOT))+0.5); |
3695 |
} |
3696 |
} |
3697 |
} |
3698 |
|
3699 |
static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){ |
3700 |
SnowContext *s = avctx->priv_data; |
3701 |
RangeCoder * const c= &s->c;
|
3702 |
AVFrame *pict = data; |
3703 |
const int width= s->avctx->width; |
3704 |
const int height= s->avctx->height; |
3705 |
int level, orientation, plane_index, i, y;
|
3706 |
uint8_t rc_header_bak[sizeof(s->header_state)];
|
3707 |
uint8_t rc_block_bak[sizeof(s->block_state)];
|
3708 |
|
3709 |
ff_init_range_encoder(c, buf, buf_size); |
3710 |
ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); |
3711 |
|
3712 |
for(i=0; i<3; i++){ |
3713 |
int shift= !!i;
|
3714 |
for(y=0; y<(height>>shift); y++) |
3715 |
memcpy(&s->input_picture.data[i][y * s->input_picture.linesize[i]], |
3716 |
&pict->data[i][y * pict->linesize[i]], |
3717 |
width>>shift); |
3718 |
} |
3719 |
s->new_picture = *pict; |
3720 |
|
3721 |
s->m.picture_number= avctx->frame_number; |
3722 |
if(avctx->flags&CODEC_FLAG_PASS2){
|
3723 |
s->m.pict_type = |
3724 |
pict->pict_type= s->m.rc_context.entry[avctx->frame_number].new_pict_type; |
3725 |
s->keyframe= pict->pict_type==FF_I_TYPE; |
3726 |
if(!(avctx->flags&CODEC_FLAG_QSCALE)) {
|
3727 |
pict->quality= ff_rate_estimate_qscale(&s->m, 0);
|
3728 |
if (pict->quality < 0) |
3729 |
return -1; |
3730 |
} |
3731 |
}else{
|
3732 |
s->keyframe= avctx->gop_size==0 || avctx->frame_number % avctx->gop_size == 0; |
3733 |
s->m.pict_type= |
3734 |
pict->pict_type= s->keyframe ? FF_I_TYPE : FF_P_TYPE; |
3735 |
} |
3736 |
|
3737 |
if(s->pass1_rc && avctx->frame_number == 0) |
3738 |
pict->quality= 2*FF_QP2LAMBDA;
|
3739 |
if(pict->quality){
|
3740 |
s->qlog= qscale2qlog(pict->quality); |
3741 |
s->lambda = pict->quality * 3/2; |
3742 |
} |
3743 |
if(s->qlog < 0 || (!pict->quality && (avctx->flags & CODEC_FLAG_QSCALE))){ |
3744 |
s->qlog= LOSSLESS_QLOG; |
3745 |
s->lambda = 0;
|
3746 |
}//else keep previous frame's qlog until after motion estimation
|
3747 |
|
3748 |
frame_start(s); |
3749 |
|
3750 |
s->m.current_picture_ptr= &s->m.current_picture; |
3751 |
s->m.last_picture.pts= s->m.current_picture.pts; |
3752 |
s->m.current_picture.pts= pict->pts; |
3753 |
if(pict->pict_type == FF_P_TYPE){
|
3754 |
int block_width = (width +15)>>4; |
3755 |
int block_height= (height+15)>>4; |
3756 |
int stride= s->current_picture.linesize[0]; |
3757 |
|
3758 |
assert(s->current_picture.data[0]);
|
3759 |
assert(s->last_picture[0].data[0]); |
3760 |
|
3761 |
s->m.avctx= s->avctx; |
3762 |
s->m.current_picture.data[0]= s->current_picture.data[0]; |
3763 |
s->m. last_picture.data[0]= s->last_picture[0].data[0]; |
3764 |
s->m. new_picture.data[0]= s-> input_picture.data[0]; |
3765 |
s->m. last_picture_ptr= &s->m. last_picture; |
3766 |
s->m.linesize= |
3767 |
s->m. last_picture.linesize[0]=
|
3768 |
s->m. new_picture.linesize[0]=
|
3769 |
s->m.current_picture.linesize[0]= stride;
|
3770 |
s->m.uvlinesize= s->current_picture.linesize[1];
|
3771 |
s->m.width = width; |
3772 |
s->m.height= height; |
3773 |
s->m.mb_width = block_width; |
3774 |
s->m.mb_height= block_height; |
3775 |
s->m.mb_stride= s->m.mb_width+1;
|
3776 |
s->m.b8_stride= 2*s->m.mb_width+1; |
3777 |
s->m.f_code=1;
|
3778 |
s->m.pict_type= pict->pict_type; |
3779 |
s->m.me_method= s->avctx->me_method; |
3780 |
s->m.me.scene_change_score=0;
|
3781 |
s->m.flags= s->avctx->flags; |
3782 |
s->m.quarter_sample= (s->avctx->flags & CODEC_FLAG_QPEL)!=0;
|
3783 |
s->m.out_format= FMT_H263; |
3784 |
s->m.unrestricted_mv= 1;
|
3785 |
|
3786 |
s->m.lambda = s->lambda; |
3787 |
s->m.qscale= (s->m.lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7); |
3788 |
s->lambda2= s->m.lambda2= (s->m.lambda*s->m.lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
|
3789 |
|
3790 |
s->m.dsp= s->dsp; //move
|
3791 |
ff_init_me(&s->m); |
3792 |
s->dsp= s->m.dsp; |
3793 |
} |
3794 |
|
3795 |
if(s->pass1_rc){
|
3796 |
memcpy(rc_header_bak, s->header_state, sizeof(s->header_state));
|
3797 |
memcpy(rc_block_bak, s->block_state, sizeof(s->block_state));
|
3798 |
} |
3799 |
|
3800 |
redo_frame:
|
3801 |
|
3802 |
if(pict->pict_type == FF_I_TYPE)
|
3803 |
s->spatial_decomposition_count= 5;
|
3804 |
else
|
3805 |
s->spatial_decomposition_count= 5;
|
3806 |
|
3807 |
s->m.pict_type = pict->pict_type; |
3808 |
s->qbias= pict->pict_type == FF_P_TYPE ? 2 : 0; |
3809 |
|
3810 |
common_init_after_header(avctx); |
3811 |
|
3812 |
if(s->last_spatial_decomposition_count != s->spatial_decomposition_count){
|
3813 |
for(plane_index=0; plane_index<3; plane_index++){ |
3814 |
calculate_visual_weight(s, &s->plane[plane_index]); |
3815 |
} |
3816 |
} |
3817 |
|
3818 |
encode_header(s); |
3819 |
s->m.misc_bits = 8*(s->c.bytestream - s->c.bytestream_start);
|
3820 |
encode_blocks(s, 1);
|
3821 |
s->m.mv_bits = 8*(s->c.bytestream - s->c.bytestream_start) - s->m.misc_bits;
|
3822 |
|
3823 |
for(plane_index=0; plane_index<3; plane_index++){ |
3824 |
Plane *p= &s->plane[plane_index]; |
3825 |
int w= p->width;
|
3826 |
int h= p->height;
|
3827 |
int x, y;
|
3828 |
// int bits= put_bits_count(&s->c.pb);
|
3829 |
|
3830 |
if(!(avctx->flags2 & CODEC_FLAG2_MEMC_ONLY)){
|
3831 |
//FIXME optimize
|
3832 |
if(pict->data[plane_index]) //FIXME gray hack |
3833 |
for(y=0; y<h; y++){ |
3834 |
for(x=0; x<w; x++){ |
3835 |
s->spatial_idwt_buffer[y*w + x]= pict->data[plane_index][y*pict->linesize[plane_index] + x]<<FRAC_BITS; |
3836 |
} |
3837 |
} |
3838 |
predict_plane(s, s->spatial_idwt_buffer, plane_index, 0);
|
3839 |
|
3840 |
if( plane_index==0 |
3841 |
&& pict->pict_type == FF_P_TYPE |
3842 |
&& !(avctx->flags&CODEC_FLAG_PASS2) |
3843 |
&& s->m.me.scene_change_score > s->avctx->scenechange_threshold){ |
3844 |
ff_init_range_encoder(c, buf, buf_size); |
3845 |
ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); |
3846 |
pict->pict_type= FF_I_TYPE; |
3847 |
s->keyframe=1;
|
3848 |
s->current_picture.key_frame=1;
|
3849 |
goto redo_frame;
|
3850 |
} |
3851 |
|
3852 |
if(s->qlog == LOSSLESS_QLOG){
|
3853 |
for(y=0; y<h; y++){ |
3854 |
for(x=0; x<w; x++){ |
3855 |
s->spatial_dwt_buffer[y*w + x]= (s->spatial_idwt_buffer[y*w + x] + (1<<(FRAC_BITS-1))-1)>>FRAC_BITS; |
3856 |
} |
3857 |
} |
3858 |
}else{
|
3859 |
for(y=0; y<h; y++){ |
3860 |
for(x=0; x<w; x++){ |
3861 |
s->spatial_dwt_buffer[y*w + x]=s->spatial_idwt_buffer[y*w + x]<<ENCODER_EXTRA_BITS; |
3862 |
} |
3863 |
} |
3864 |
} |
3865 |
|
3866 |
/* if(QUANTIZE2)
|
3867 |
dwt_quantize(s, p, s->spatial_dwt_buffer, w, h, w, s->spatial_decomposition_type);
|
3868 |
else*/
|
3869 |
ff_spatial_dwt(s->spatial_dwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count); |
3870 |
|
3871 |
if(s->pass1_rc && plane_index==0){ |
3872 |
int delta_qlog = ratecontrol_1pass(s, pict);
|
3873 |
if (delta_qlog <= INT_MIN)
|
3874 |
return -1; |
3875 |
if(delta_qlog){
|
3876 |
//reordering qlog in the bitstream would eliminate this reset
|
3877 |
ff_init_range_encoder(c, buf, buf_size); |
3878 |
memcpy(s->header_state, rc_header_bak, sizeof(s->header_state));
|
3879 |
memcpy(s->block_state, rc_block_bak, sizeof(s->block_state));
|
3880 |
encode_header(s); |
3881 |
encode_blocks(s, 0);
|
3882 |
} |
3883 |
} |
3884 |
|
3885 |
for(level=0; level<s->spatial_decomposition_count; level++){ |
3886 |
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
3887 |
SubBand *b= &p->band[level][orientation]; |
3888 |
|
3889 |
if(!QUANTIZE2)
|
3890 |
quantize(s, b, b->ibuf, b->buf, b->stride, s->qbias); |
3891 |
if(orientation==0) |
3892 |
decorrelate(s, b, b->ibuf, b->stride, pict->pict_type == FF_P_TYPE, 0);
|
3893 |
encode_subband(s, b, b->ibuf, b->parent ? b->parent->ibuf : NULL, b->stride, orientation);
|
3894 |
assert(b->parent==NULL || b->parent->stride == b->stride*2); |
3895 |
if(orientation==0) |
3896 |
correlate(s, b, b->ibuf, b->stride, 1, 0); |
3897 |
} |
3898 |
} |
3899 |
|
3900 |
for(level=0; level<s->spatial_decomposition_count; level++){ |
3901 |
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
3902 |
SubBand *b= &p->band[level][orientation]; |
3903 |
|
3904 |
dequantize(s, b, b->ibuf, b->stride); |
3905 |
} |
3906 |
} |
3907 |
|
3908 |
ff_spatial_idwt(s->spatial_idwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count); |
3909 |
if(s->qlog == LOSSLESS_QLOG){
|
3910 |
for(y=0; y<h; y++){ |
3911 |
for(x=0; x<w; x++){ |
3912 |
s->spatial_idwt_buffer[y*w + x]<<=FRAC_BITS; |
3913 |
} |
3914 |
} |
3915 |
} |
3916 |
predict_plane(s, s->spatial_idwt_buffer, plane_index, 1);
|
3917 |
}else{
|
3918 |
//ME/MC only
|
3919 |
if(pict->pict_type == FF_I_TYPE){
|
3920 |
for(y=0; y<h; y++){ |
3921 |
for(x=0; x<w; x++){ |
3922 |
s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]= |
3923 |
pict->data[plane_index][y*pict->linesize[plane_index] + x]; |
3924 |
} |
3925 |
} |
3926 |
}else{
|
3927 |
memset(s->spatial_idwt_buffer, 0, sizeof(IDWTELEM)*w*h); |
3928 |
predict_plane(s, s->spatial_idwt_buffer, plane_index, 1);
|
3929 |
} |
3930 |
} |
3931 |
if(s->avctx->flags&CODEC_FLAG_PSNR){
|
3932 |
int64_t error= 0;
|
3933 |
|
3934 |
if(pict->data[plane_index]) //FIXME gray hack |
3935 |
for(y=0; y<h; y++){ |
3936 |
for(x=0; x<w; x++){ |
3937 |
int d= s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x] - pict->data[plane_index][y*pict->linesize[plane_index] + x];
|
3938 |
error += d*d; |
3939 |
} |
3940 |
} |
3941 |
s->avctx->error[plane_index] += error; |
3942 |
s->current_picture.error[plane_index] = error; |
3943 |
} |
3944 |
|
3945 |
} |
3946 |
|
3947 |
update_last_header_values(s); |
3948 |
|
3949 |
release_buffer(avctx); |
3950 |
|
3951 |
s->current_picture.coded_picture_number = avctx->frame_number; |
3952 |
s->current_picture.pict_type = pict->pict_type; |
3953 |
s->current_picture.quality = pict->quality; |
3954 |
s->m.frame_bits = 8*(s->c.bytestream - s->c.bytestream_start);
|
3955 |
s->m.p_tex_bits = s->m.frame_bits - s->m.misc_bits - s->m.mv_bits; |
3956 |
s->m.current_picture.display_picture_number = |
3957 |
s->m.current_picture.coded_picture_number = avctx->frame_number; |
3958 |
s->m.current_picture.quality = pict->quality; |
3959 |
s->m.total_bits += 8*(s->c.bytestream - s->c.bytestream_start);
|
3960 |
if(s->pass1_rc)
|
3961 |
if (ff_rate_estimate_qscale(&s->m, 0) < 0) |
3962 |
return -1; |
3963 |
if(avctx->flags&CODEC_FLAG_PASS1)
|
3964 |
ff_write_pass1_stats(&s->m); |
3965 |
s->m.last_pict_type = s->m.pict_type; |
3966 |
avctx->frame_bits = s->m.frame_bits; |
3967 |
avctx->mv_bits = s->m.mv_bits; |
3968 |
avctx->misc_bits = s->m.misc_bits; |
3969 |
avctx->p_tex_bits = s->m.p_tex_bits; |
3970 |
|
3971 |
emms_c(); |
3972 |
|
3973 |
return ff_rac_terminate(c);
|
3974 |
} |
3975 |
|
3976 |
static av_cold int encode_end(AVCodecContext *avctx) |
3977 |
{ |
3978 |
SnowContext *s = avctx->priv_data; |
3979 |
|
3980 |
common_end(s); |
3981 |
if (s->input_picture.data[0]) |
3982 |
avctx->release_buffer(avctx, &s->input_picture); |
3983 |
av_free(avctx->stats_out); |
3984 |
|
3985 |
return 0; |
3986 |
} |
3987 |
|
3988 |
AVCodec ff_snow_encoder = { |
3989 |
"snow",
|
3990 |
AVMEDIA_TYPE_VIDEO, |
3991 |
CODEC_ID_SNOW, |
3992 |
sizeof(SnowContext),
|
3993 |
encode_init, |
3994 |
encode_frame, |
3995 |
encode_end, |
3996 |
.long_name = NULL_IF_CONFIG_SMALL("Snow"),
|
3997 |
}; |
3998 |
#endif
|
3999 |
|
4000 |
|
4001 |
#ifdef TEST
|
4002 |
#undef malloc
|
4003 |
#undef free
|
4004 |
#undef printf
|
4005 |
|
4006 |
#include "libavutil/lfg.h" |
4007 |
|
4008 |
int main(void){ |
4009 |
int width=256; |
4010 |
int height=256; |
4011 |
int buffer[2][width*height]; |
4012 |
SnowContext s; |
4013 |
int i;
|
4014 |
AVLFG prng; |
4015 |
s.spatial_decomp |