/* * Copyright (C) 2004 Michael Niedermayer * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "avcodec.h" #include "common.h" #include "dsputil.h" #include "cabac.h" #include "mpegvideo.h" #undef NDEBUG #include #define MAX_DECOMPOSITIONS 8 #define MAX_PLANES 4 #define DWTELEM int #define QROOT 8 static const int8_t quant3[256]={ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, 0, }; static const int8_t quant3b[256]={ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, }; static const int8_t quant5[256]={ 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, -2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, -2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, -2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, -2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, -2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, -2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, -2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, -2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1,-1, }; static const int8_t quant7[256]={ 0, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, -3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, -3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, -3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, -3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, -3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3, -3,-3,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-2,-2,-2,-2, -2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, -2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1, }; static const int8_t quant9[256]={ 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, -4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, -4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, -4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, -4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, -4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, -4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, -4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3, -3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-2,-1,-1, }; static const int8_t quant11[256]={ 0, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, -5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, -5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, -5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, -5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, -5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-4,-4, -4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4, -4,-4,-4,-4,-4,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-1, }; static const int8_t quant13[256]={ 0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, -6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, -6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, -6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, -6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6, -6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-5, -5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, -5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5, -4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3,-2,-2,-1, }; #define OBMC_MAX 64 #if 0 //64*cubic static const uint8_t obmc32[1024]={ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 2, 2, 3, 4, 4, 5, 6, 6, 7, 7, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 4, 3, 2, 2, 1, 1, 0, 0, 0, 0, 1, 2, 2, 3, 4, 6, 7, 8, 9,10,11,12,12,12,12,12,12,11,10, 9, 8, 7, 6, 4, 3, 2, 2, 1, 0, 0, 0, 1, 1, 2, 3, 5, 6, 8,10,11,13,14,15,16,17,18,18,17,16,15,14,13,11,10, 8, 6, 5, 3, 2, 1, 1, 0, 0, 1, 1, 3, 4, 6, 8,10,13,15,17,19,20,22,22,23,23,22,22,20,19,17,15,13,10, 8, 6, 4, 3, 1, 1, 0, 0, 1, 2, 4, 6, 8,10,13,16,19,21,23,25,27,28,29,29,28,27,25,23,21,19,16,13,10, 8, 6, 4, 2, 1, 0, 0, 1, 2, 4, 7,10,13,16,19,22,25,28,31,33,34,35,35,34,33,31,28,25,22,19,16,13,10, 7, 4, 2, 1, 0, 0, 1, 3, 5, 8,11,15,19,22,26,30,33,36,38,40,41,41,40,38,36,33,30,26,22,19,15,11, 8, 5, 3, 1, 0, 0, 1, 3, 6, 9,12,17,21,25,30,34,38,41,44,45,46,46,45,44,41,38,34,30,25,21,17,12, 9, 6, 3, 1, 0, 0, 1, 3, 6,10,14,19,23,28,33,38,42,45,48,51,52,52,51,48,45,42,38,33,28,23,19,14,10, 6, 3, 1, 0, 0, 1, 4, 7,11,15,20,25,31,36,41,45,49,52,55,56,56,55,52,49,45,41,36,31,25,20,15,11, 7, 4, 1, 0, 0, 2, 4, 7,12,16,22,27,33,38,44,48,52,56,58,60,60,58,56,52,48,44,38,33,27,22,16,12, 7, 4, 2, 0, 0, 1, 4, 8,12,17,22,28,34,40,45,51,55,58,61,62,62,61,58,55,51,45,40,34,28,22,17,12, 8, 4, 1, 0, 0, 2, 4, 8,12,18,23,29,35,41,46,52,56,60,62,64,64,62,60,56,52,46,41,35,29,23,18,12, 8, 4, 2, 0, 0, 2, 4, 8,12,18,23,29,35,41,46,52,56,60,62,64,64,62,60,56,52,46,41,35,29,23,18,12, 8, 4, 2, 0, 0, 1, 4, 8,12,17,22,28,34,40,45,51,55,58,61,62,62,61,58,55,51,45,40,34,28,22,17,12, 8, 4, 1, 0, 0, 2, 4, 7,12,16,22,27,33,38,44,48,52,56,58,60,60,58,56,52,48,44,38,33,27,22,16,12, 7, 4, 2, 0, 0, 1, 4, 7,11,15,20,25,31,36,41,45,49,52,55,56,56,55,52,49,45,41,36,31,25,20,15,11, 7, 4, 1, 0, 0, 1, 3, 6,10,14,19,23,28,33,38,42,45,48,51,52,52,51,48,45,42,38,33,28,23,19,14,10, 6, 3, 1, 0, 0, 1, 3, 6, 9,12,17,21,25,30,34,38,41,44,45,46,46,45,44,41,38,34,30,25,21,17,12, 9, 6, 3, 1, 0, 0, 1, 3, 5, 8,11,15,19,22,26,30,33,36,38,40,41,41,40,38,36,33,30,26,22,19,15,11, 8, 5, 3, 1, 0, 0, 1, 2, 4, 7,10,13,16,19,22,25,28,31,33,34,35,35,34,33,31,28,25,22,19,16,13,10, 7, 4, 2, 1, 0, 0, 1, 2, 4, 6, 8,10,13,16,19,21,23,25,27,28,29,29,28,27,25,23,21,19,16,13,10, 8, 6, 4, 2, 1, 0, 0, 1, 1, 3, 4, 6, 8,10,13,15,17,19,20,22,22,23,23,22,22,20,19,17,15,13,10, 8, 6, 4, 3, 1, 1, 0, 0, 1, 1, 2, 3, 5, 6, 8,10,11,13,14,15,16,17,18,18,17,16,15,14,13,11,10, 8, 6, 5, 3, 2, 1, 1, 0, 0, 0, 1, 2, 2, 3, 4, 6, 7, 8, 9,10,11,12,12,12,12,12,12,11,10, 9, 8, 7, 6, 4, 3, 2, 2, 1, 0, 0, 0, 0, 1, 1, 2, 2, 3, 4, 4, 5, 6, 6, 7, 7, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 4, 3, 2, 2, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //error:0.000022 }; static const uint8_t obmc16[256]={ 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 4, 5, 5, 6, 6, 5, 5, 4, 2, 1, 1, 0, 0, 1, 4, 6, 9,11,13,15,15,13,11, 9, 6, 4, 1, 0, 0, 2, 6,11,15,20,24,26,26,24,20,15,11, 6, 2, 0, 0, 4, 9,15,23,29,34,38,38,34,29,23,15, 9, 4, 0, 0, 5,11,20,29,38,45,49,49,45,38,29,20,11, 5, 0, 1, 5,13,24,34,45,53,57,57,53,45,34,24,13, 5, 1, 1, 6,15,26,38,49,57,62,62,57,49,38,26,15, 6, 1, 1, 6,15,26,38,49,57,62,62,57,49,38,26,15, 6, 1, 1, 5,13,24,34,45,53,57,57,53,45,34,24,13, 5, 1, 0, 5,11,20,29,38,45,49,49,45,38,29,20,11, 5, 0, 0, 4, 9,15,23,29,34,38,38,34,29,23,15, 9, 4, 0, 0, 2, 6,11,15,20,24,26,26,24,20,15,11, 6, 2, 0, 0, 1, 4, 6, 9,11,13,15,15,13,11, 9, 6, 4, 1, 0, 0, 1, 1, 2, 4, 5, 5, 6, 6, 5, 5, 4, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, //error:0.000033 }; #elif 1 // 64*linear static const uint8_t obmc32[1024]={ 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 0, 0, 1, 2, 2, 3, 3, 4, 5, 5, 6, 7, 7, 8, 8, 9,10,10, 9, 8, 8, 7, 7, 6, 5, 5, 4, 3, 3, 2, 2, 1, 0, 0, 1, 2, 3, 4, 5, 6, 7, 7, 8, 9,10,11,12,13,14,14,13,12,11,10, 9, 8, 7, 7, 6, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 7, 8,10,11,12,13,14,15,16,17,17,16,15,14,13,12,11,10, 8, 7, 6, 5, 4, 3, 2, 1, 1, 2, 3, 5, 6, 8, 9,10,12,13,14,16,17,19,20,21,21,20,19,17,16,14,13,12,10, 9, 8, 6, 5, 3, 2, 1, 1, 2, 4, 6, 7, 9,11,12,14,15,17,19,20,22,24,25,25,24,22,20,19,17,15,14,12,11, 9, 7, 6, 4, 2, 1, 1, 3, 5, 7, 8,10,12,14,16,18,20,22,23,25,27,29,29,27,25,23,22,20,18,16,14,12,10, 8, 7, 5, 3, 1, 1, 3, 5, 7,10,12,14,16,18,20,22,24,27,29,31,33,33,31,29,27,24,22,20,18,16,14,12,10, 7, 5, 3, 1, 1, 4, 6, 8,11,13,15,18,20,23,25,27,30,32,34,37,37,34,32,30,27,25,23,20,18,15,13,11, 8, 6, 4, 1, 1, 4, 7, 9,12,14,17,20,22,25,28,30,33,35,38,41,41,38,35,33,30,28,25,22,20,17,14,12, 9, 7, 4, 1, 1, 4, 7,10,13,16,19,22,24,27,30,33,36,39,42,45,45,42,39,36,33,30,27,24,22,19,16,13,10, 7, 4, 1, 2, 5, 8,11,14,17,20,23,27,30,33,36,39,42,45,48,48,45,42,39,36,33,30,27,23,20,17,14,11, 8, 5, 2, 2, 5, 8,12,15,19,22,25,29,32,35,39,42,46,49,52,52,49,46,42,39,35,32,29,25,22,19,15,12, 8, 5, 2, 2, 5, 9,13,16,20,24,27,31,34,38,42,45,49,53,56,56,53,49,45,42,38,34,31,27,24,20,16,13, 9, 5, 2, 2, 6,10,14,17,21,25,29,33,37,41,45,48,52,56,60,60,56,52,48,45,41,37,33,29,25,21,17,14,10, 6, 2, 2, 6,10,14,17,21,25,29,33,37,41,45,48,52,56,60,60,56,52,48,45,41,37,33,29,25,21,17,14,10, 6, 2, 2, 5, 9,13,16,20,24,27,31,34,38,42,45,49,53,56,56,53,49,45,42,38,34,31,27,24,20,16,13, 9, 5, 2, 2, 5, 8,12,15,19,22,25,29,32,35,39,42,46,49,52,52,49,46,42,39,35,32,29,25,22,19,15,12, 8, 5, 2, 2, 5, 8,11,14,17,20,23,27,30,33,36,39,42,45,48,48,45,42,39,36,33,30,27,23,20,17,14,11, 8, 5, 2, 1, 4, 7,10,13,16,19,22,24,27,30,33,36,39,42,45,45,42,39,36,33,30,27,24,22,19,16,13,10, 7, 4, 1, 1, 4, 7, 9,12,14,17,20,22,25,28,30,33,35,38,41,41,38,35,33,30,28,25,22,20,17,14,12, 9, 7, 4, 1, 1, 4, 6, 8,11,13,15,18,20,23,25,27,30,32,34,37,37,34,32,30,27,25,23,20,18,15,13,11, 8, 6, 4, 1, 1, 3, 5, 7,10,12,14,16,18,20,22,24,27,29,31,33,33,31,29,27,24,22,20,18,16,14,12,10, 7, 5, 3, 1, 1, 3, 5, 7, 8,10,12,14,16,18,20,22,23,25,27,29,29,27,25,23,22,20,18,16,14,12,10, 8, 7, 5, 3, 1, 1, 2, 4, 6, 7, 9,11,12,14,15,17,19,20,22,24,25,25,24,22,20,19,17,15,14,12,11, 9, 7, 6, 4, 2, 1, 1, 2, 3, 5, 6, 8, 9,10,12,13,14,16,17,19,20,21,21,20,19,17,16,14,13,12,10, 9, 8, 6, 5, 3, 2, 1, 1, 2, 3, 4, 5, 6, 7, 8,10,11,12,13,14,15,16,17,17,16,15,14,13,12,11,10, 8, 7, 6, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 7, 7, 8, 9,10,11,12,13,14,14,13,12,11,10, 9, 8, 7, 7, 6, 5, 4, 3, 2, 1, 0, 0, 1, 2, 2, 3, 3, 4, 5, 5, 6, 7, 7, 8, 8, 9,10,10, 9, 8, 8, 7, 7, 6, 5, 5, 4, 3, 3, 2, 2, 1, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, //error:0.000020 }; static const uint8_t obmc16[256]={ 0, 1, 1, 2, 2, 3, 3, 4, 4, 3, 3, 2, 2, 1, 1, 0, 1, 2, 4, 5, 7, 8,10,11,11,10, 8, 7, 5, 4, 2, 1, 1, 4, 6, 9,11,14,16,19,19,16,14,11, 9, 6, 4, 1, 2, 5, 9,12,16,19,23,26,26,23,19,16,12, 9, 5, 2, 2, 7,11,16,20,25,29,34,34,29,25,20,16,11, 7, 2, 3, 8,14,19,25,30,36,41,41,36,30,25,19,14, 8, 3, 3,10,16,23,29,36,42,49,49,42,36,29,23,16,10, 3, 4,11,19,26,34,41,49,56,56,49,41,34,26,19,11, 4, 4,11,19,26,34,41,49,56,56,49,41,34,26,19,11, 4, 3,10,16,23,29,36,42,49,49,42,36,29,23,16,10, 3, 3, 8,14,19,25,30,36,41,41,36,30,25,19,14, 8, 3, 2, 7,11,16,20,25,29,34,34,29,25,20,16,11, 7, 2, 2, 5, 9,12,16,19,23,26,26,23,19,16,12, 9, 5, 2, 1, 4, 6, 9,11,14,16,19,19,16,14,11, 9, 6, 4, 1, 1, 2, 4, 5, 7, 8,10,11,11,10, 8, 7, 5, 4, 2, 1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 3, 3, 2, 2, 1, 1, 0, //error:0.000015 }; #else //64*cos static const uint8_t obmc32[1024]={ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 3, 4, 5, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 3, 2, 2, 1, 1, 1, 0, 0, 0, 0, 1, 1, 2, 3, 4, 5, 6, 7, 9,10,11,11,12,12,12,12,11,11,10, 9, 7, 6, 5, 4, 3, 2, 1, 1, 0, 0, 0, 0, 1, 2, 3, 5, 6, 8, 9,11,12,14,15,16,17,17,17,17,16,15,14,12,11, 9, 8, 6, 5, 3, 2, 1, 0, 0, 0, 1, 1, 2, 4, 6, 8,10,12,15,17,19,20,21,22,23,23,22,21,20,19,17,15,12,10, 8, 6, 4, 2, 1, 1, 0, 0, 1, 2, 3, 5, 8,10,13,16,19,21,24,26,27,28,29,29,28,27,26,24,21,19,16,13,10, 8, 5, 3, 2, 1, 0, 0, 1, 2, 4, 6, 9,12,16,19,23,26,29,31,33,34,35,35,34,33,31,29,26,23,19,16,12, 9, 6, 4, 2, 1, 0, 0, 1, 3, 5, 7,11,15,19,23,26,30,34,37,39,40,41,41,40,39,37,34,30,26,23,19,15,11, 7, 5, 3, 1, 0, 0, 1, 3, 5, 9,12,17,21,26,30,35,38,42,44,46,47,47,46,44,42,38,35,30,26,21,17,12, 9, 5, 3, 1, 0, 0, 1, 3, 6, 9,14,19,24,29,34,38,43,46,49,51,52,52,51,49,46,43,38,34,29,24,19,14, 9, 6, 3, 1, 0, 0, 1, 3, 6,11,15,20,26,31,37,42,46,50,53,56,57,57,56,53,50,46,42,37,31,26,20,15,11, 6, 3, 1, 0, 0, 1, 3, 7,11,16,21,27,33,39,44,49,53,57,59,60,60,59,57,53,49,44,39,33,27,21,16,11, 7, 3, 1, 0, 0, 1, 4, 7,12,17,22,28,34,40,46,51,56,59,61,63,63,61,59,56,51,46,40,34,28,22,17,12, 7, 4, 1, 0, 0, 1, 4, 7,12,17,23,29,35,41,47,52,57,60,63,64,64,63,60,57,52,47,41,35,29,23,17,12, 7, 4, 1, 0, 0, 1, 4, 7,12,17,23,29,35,41,47,52,57,60,63,64,64,63,60,57,52,47,41,35,29,23,17,12, 7, 4, 1, 0, 0, 1, 4, 7,12,17,22,28,34,40,46,51,56,59,61,63,63,61,59,56,51,46,40,34,28,22,17,12, 7, 4, 1, 0, 0, 1, 3, 7,11,16,21,27,33,39,44,49,53,57,59,60,60,59,57,53,49,44,39,33,27,21,16,11, 7, 3, 1, 0, 0, 1, 3, 6,11,15,20,26,31,37,42,46,50,53,56,57,57,56,53,50,46,42,37,31,26,20,15,11, 6, 3, 1, 0, 0, 1, 3, 6, 9,14,19,24,29,34,38,43,46,49,51,52,52,51,49,46,43,38,34,29,24,19,14, 9, 6, 3, 1, 0, 0, 1, 3, 5, 9,12,17,21,26,30,35,38,42,44,46,47,47,46,44,42,38,35,30,26,21,17,12, 9, 5, 3, 1, 0, 0, 1, 3, 5, 7,11,15,19,23,26,30,34,37,39,40,41,41,40,39,37,34,30,26,23,19,15,11, 7, 5, 3, 1, 0, 0, 1, 2, 4, 6, 9,12,16,19,23,26,29,31,33,34,35,35,34,33,31,29,26,23,19,16,12, 9, 6, 4, 2, 1, 0, 0, 1, 2, 3, 5, 8,10,13,16,19,21,24,26,27,28,29,29,28,27,26,24,21,19,16,13,10, 8, 5, 3, 2, 1, 0, 0, 1, 1, 2, 4, 6, 8,10,12,15,17,19,20,21,22,23,23,22,21,20,19,17,15,12,10, 8, 6, 4, 2, 1, 1, 0, 0, 0, 1, 2, 3, 5, 6, 8, 9,11,12,14,15,16,17,17,17,17,16,15,14,12,11, 9, 8, 6, 5, 3, 2, 1, 0, 0, 0, 0, 1, 1, 2, 3, 4, 5, 6, 7, 9,10,11,11,12,12,12,12,11,11,10, 9, 7, 6, 5, 4, 3, 2, 1, 1, 0, 0, 0, 0, 1, 1, 1, 2, 2, 3, 4, 5, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 3, 2, 2, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //error:0.000022 }; static const uint8_t obmc16[256]={ 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 5, 5, 5, 4, 3, 2, 1, 0, 0, 0, 1, 3, 6, 8,11,13,14,14,13,11, 8, 6, 3, 1, 0, 0, 2, 6,10,15,20,24,26,26,24,20,15,10, 6, 2, 0, 0, 3, 8,16,23,30,35,38,38,35,30,23,16, 8, 3, 0, 1, 4,11,20,30,39,46,49,49,46,39,30,20,11, 4, 1, 1, 5,13,24,35,46,54,58,58,54,46,35,24,13, 5, 1, 0, 5,14,26,38,49,58,63,63,58,49,38,26,14, 5, 0, 0, 5,14,26,38,49,58,63,63,58,49,38,26,14, 5, 0, 1, 5,13,24,35,46,54,58,58,54,46,35,24,13, 5, 1, 1, 4,11,20,30,39,46,49,49,46,39,30,20,11, 4, 1, 0, 3, 8,16,23,30,35,38,38,35,30,23,16, 8, 3, 0, 0, 2, 6,10,15,20,24,26,26,24,20,15,10, 6, 2, 0, 0, 1, 3, 6, 8,11,13,14,14,13,11, 8, 6, 3, 1, 0, 0, 0, 1, 2, 3, 4, 5, 5, 5, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, //error:0.000022 }; #endif typedef struct SubBand{ int level; int stride; int width; int height; int qlog; ///< log(qscale)/log[2^(1/6)] DWTELEM *buf; struct SubBand *parent; uint8_t state[/*7*2*/ 7 + 512][32]; }SubBand; typedef struct Plane{ int width; int height; SubBand band[MAX_DECOMPOSITIONS][4]; }Plane; typedef struct SnowContext{ // MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to make the motion estimation eventually independant of MpegEncContext, so this will be removed then (FIXME/XXX) AVCodecContext *avctx; CABACContext c; DSPContext dsp; AVFrame input_picture; AVFrame current_picture; AVFrame last_picture; AVFrame mconly_picture; // uint8_t q_context[16]; uint8_t header_state[32]; int keyframe; int version; int spatial_decomposition_type; int temporal_decomposition_type; int spatial_decomposition_count; int temporal_decomposition_count; DWTELEM *spatial_dwt_buffer; DWTELEM *pred_buffer; int colorspace_type; int chroma_h_shift; int chroma_v_shift; int spatial_scalability; int qlog; int mv_scale; int qbias; #define QBIAS_SHIFT 3 int b_width; //FIXME remove? int b_height; //FIXME remove? Plane plane[MAX_PLANES]; SubBand mb_band; SubBand mv_band[2]; uint16_t *mb_type; uint8_t *mb_mean; uint32_t *dummy; int16_t (*motion_val8)[2]; int16_t (*motion_val16)[2]; MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to make the motion estimation eventually independant of MpegEncContext, so this will be removed then (FIXME/XXX) }SnowContext; #define QEXPSHIFT 7 //FIXME try to change this to 0 static const uint8_t qexp[8]={ 128, 140, 152, 166, 181, 197, 215, 235 // 64, 70, 76, 83, 91, 99, 108, 117 // 32, 35, 38, 41, 45, 49, 54, 59 // 16, 17, 19, 21, 23, 25, 27, 29 // 8, 9, 10, 10, 11, 12, 13, 15 }; static inline int mirror(int v, int m){ if (v<0) return -v; else if(v>m) return 2*m-v; else return v; } static inline void put_symbol(CABACContext *c, uint8_t *state, int v, int is_signed){ int i; if(v){ const int a= ABS(v); const int e= av_log2(a); #if 1 const int el= FFMIN(e, 10); put_cabac(c, state+0, 0); for(i=0; i=el; i--){ put_cabac(c, state+22+9, (a>>i)&1); //22..31 } for(; i>=0; i--){ put_cabac(c, state+22+i, (a>>i)&1); //22..31 } if(is_signed) put_cabac(c, state+11 + el, v < 0); //11..21 #else put_cabac(c, state+0, 0); if(e<=9){ for(i=0; i=0; i--){ put_cabac(c, state+22+i, (a>>i)&1); //22..31 } if(is_signed) put_cabac(c, state+11 + e, v < 0); //11..21 }else{ for(i=0; i=0; i--){ put_cabac(c, state+22+FFMIN(i,9), (a>>i)&1); //22..31 } if(is_signed) put_cabac(c, state+11 + FFMIN(e,10), v < 0); //11..21 } #endif }else{ put_cabac(c, state+0, 1); } } static inline int get_symbol(CABACContext *c, uint8_t *state, int is_signed){ if(get_cabac(c, state+0)) return 0; else{ int i, e, a, el; //FIXME try to merge loops with FFMIN() maybe they are equally fast and they are surly cuter for(e=0; e<10; e++){ if(get_cabac(c, state + 1 + e)==0) // 1..10 break; } el= e; if(e==10){ while(get_cabac(c, state + 1 + 9)) //10 e++; } a= 1; for(i=e-1; i>=el; i--){ a += a + get_cabac(c, state+22+9); //31 } for(; i>=0; i--){ a += a + get_cabac(c, state+22+i); //22..31 } if(is_signed && get_cabac(c, state+11 + el)) //11..21 return -a; else return a; } } static always_inline void lift(DWTELEM *dst, DWTELEM *src, DWTELEM *ref, int dst_step, int src_step, int ref_step, int width, int mul, int add, int shift, int highpass, int inverse){ const int mirror_left= !highpass; const int mirror_right= (width&1) ^ highpass; const int w= (width>>1) - 1 + (highpass & width); int i; #define LIFT(src, ref, inv) ((src) + ((inv) ? - (ref) : + (ref))) if(mirror_left){ dst[0] = LIFT(src[0], ((mul*2*ref[0]+add)>>shift), inverse); dst += dst_step; src += src_step; } for(i=0; i>shift), inverse); } if(mirror_right){ dst[w*dst_step] = LIFT(src[w*src_step], ((mul*2*ref[w*ref_step]+add)>>shift), inverse); } } static always_inline void lift5(DWTELEM *dst, DWTELEM *src, DWTELEM *ref, int dst_step, int src_step, int ref_step, int width, int mul, int add, int shift, int highpass, int inverse){ const int mirror_left= !highpass; const int mirror_right= (width&1) ^ highpass; const int w= (width>>1) - 1 + (highpass & width); int i; if(mirror_left){ int r= 3*2*ref[0]; r += r>>4; r += r>>8; dst[0] = LIFT(src[0], ((r+add)>>shift), inverse); dst += dst_step; src += src_step; } for(i=0; i>4; r += r>>8; dst[i*dst_step] = LIFT(src[i*src_step], ((r+add)>>shift), inverse); } if(mirror_right){ int r= 3*2*ref[w*ref_step]; r += r>>4; r += r>>8; dst[w*dst_step] = LIFT(src[w*src_step], ((r+add)>>shift), inverse); } } static void inplace_lift(int *dst, int width, int *coeffs, int n, int shift, int start, int inverse){ int x, i; for(x=start; x=width) x2= 2*width-x2-2; sum += coeffs[i]*(int64_t)dst[x2]; } if(inverse) dst[x] -= (sum + (1<>shift; else dst[x] += (sum + (1<>shift; } } static void inplace_liftV(int *dst, int width, int height, int stride, int *coeffs, int n, int shift, int start, int inverse){ int x, y, i; for(y=start; y=height) y2= 2*height-y2-2; sum += coeffs[i]*(int64_t)dst[x + y2*stride]; } if(inverse) dst[x + y*stride] -= (sum + (1<>shift; else dst[x + y*stride] += (sum + (1<>shift; } } } #define SCALEX 1 #define LX0 0 #define LX1 1 #if 0 // more accurate 9/7 #define N1 2 #define SHIFT1 14 #define COEFFS1 (int[]){-25987,-25987} #define N2 2 #define SHIFT2 19 #define COEFFS2 (int[]){-27777,-27777} #define N3 2 #define SHIFT3 15 #define COEFFS3 (int[]){28931,28931} #define N4 2 #define SHIFT4 15 #define COEFFS4 (int[]){14533,14533} #elif 1 // 13/7 CRF #define N1 4 #define SHIFT1 4 #define COEFFS1 (int[]){1,-9,-9,1} #define N2 4 #define SHIFT2 4 #define COEFFS2 (int[]){-1,5,5,-1} #define N3 0 #define SHIFT3 1 #define COEFFS3 NULL #define N4 0 #define SHIFT4 1 #define COEFFS4 NULL #elif 1 // 3/5 #define LX0 1 #define LX1 0 #define SCALEX 0.5 #define N1 2 #define SHIFT1 1 #define COEFFS1 (int[]){1,1} #define N2 2 #define SHIFT2 2 #define COEFFS2 (int[]){-1,-1} #define N3 0 #define SHIFT3 0 #define COEFFS3 NULL #define N4 0 #define SHIFT4 0 #define COEFFS4 NULL #elif 1 // 11/5 #define N1 0 #define SHIFT1 1 #define COEFFS1 NULL #define N2 2 #define SHIFT2 2 #define COEFFS2 (int[]){-1,-1} #define N3 2 #define SHIFT3 0 #define COEFFS3 (int[]){-1,-1} #define N4 4 #define SHIFT4 7 #define COEFFS4 (int[]){-5,29,29,-5} #define SCALEX 4 #elif 1 // 9/7 CDF #define N1 2 #define SHIFT1 7 #define COEFFS1 (int[]){-203,-203} #define N2 2 #define SHIFT2 12 #define COEFFS2 (int[]){-217,-217} #define N3 2 #define SHIFT3 7 #define COEFFS3 (int[]){113,113} #define N4 2 #define SHIFT4 9 #define COEFFS4 (int[]){227,227} #define SCALEX 1 #elif 1 // 7/5 CDF #define N1 0 #define SHIFT1 1 #define COEFFS1 NULL #define N2 2 #define SHIFT2 2 #define COEFFS2 (int[]){-1,-1} #define N3 2 #define SHIFT3 0 #define COEFFS3 (int[]){-1,-1} #define N4 2 #define SHIFT4 4 #define COEFFS4 (int[]){3,3} #elif 1 // 9/7 MN #define N1 4 #define SHIFT1 4 #define COEFFS1 (int[]){1,-9,-9,1} #define N2 2 #define SHIFT2 2 #define COEFFS2 (int[]){1,1} #define N3 0 #define SHIFT3 1 #define COEFFS3 NULL #define N4 0 #define SHIFT4 1 #define COEFFS4 NULL #else // 13/7 CRF #define N1 4 #define SHIFT1 4 #define COEFFS1 (int[]){1,-9,-9,1} #define N2 4 #define SHIFT2 4 #define COEFFS2 (int[]){-1,5,5,-1} #define N3 0 #define SHIFT3 1 #define COEFFS3 NULL #define N4 0 #define SHIFT4 1 #define COEFFS4 NULL #endif static void horizontal_decomposeX(int *b, int width){ int temp[width]; const int width2= width>>1; const int w2= (width+1)>>1; int A1,A2,A3,A4, x; inplace_lift(b, width, COEFFS1, N1, SHIFT1, LX1, 0); inplace_lift(b, width, COEFFS2, N2, SHIFT2, LX0, 0); inplace_lift(b, width, COEFFS3, N3, SHIFT3, LX1, 0); inplace_lift(b, width, COEFFS4, N4, SHIFT4, LX0, 0); for(x=0; x>1; int A1,A2,A3,A4, x; const int w2= (width+1)>>1; memcpy(temp, b, width*sizeof(int)); for(x=0; x>1; int A1,A2,A3,A4, x; const int w2= (width+1)>>1; for(x=0; x>1; A4 += (A1 + 1)>>1; b[0+width2] = A1; b[0 ] = A4; for(x=1; x+1>1; A2 += (A1 + A3 + 2)>>2; b[x+width2] = A3; b[x ] = A2; A1= temp[x+1+width2]; A2= temp[x+2 ]; A1 -= (A2 + A4)>>1; A4 += (A1 + A3 + 2)>>2; b[x+1+width2] = A1; b[x+1 ] = A4; } A3= temp[width-1]; A3 -= A2; A2 += (A1 + A3 + 2)>>2; b[width -1] = A3; b[width2-1] = A2; #else lift(b+w2, temp+w2, temp, 1, 1, 1, width, -1, 0, 1, 1, 0); lift(b , temp , b+w2, 1, 1, 1, width, 1, 2, 2, 0, 0); #endif } static void vertical_decompose53iH0(int *b0, int *b1, int *b2, int width){ int i; for(i=0; i>1; } } static void vertical_decompose53iL0(int *b0, int *b1, int *b2, int width){ int i; for(i=0; i>2; } } static void spatial_decompose53i(int *buffer, int width, int height, int stride){ int x, y; DWTELEM *b0= buffer + mirror(-2-1, height-1)*stride; DWTELEM *b1= buffer + mirror(-2 , height-1)*stride; for(y=-2; y>1; lift (temp+w2, b +1, b , 1, 2, 2, width, -W_AM, W_AO, W_AS, 1, 0); lift (temp , b , temp+w2, 1, 2, 1, width, -W_BM, W_BO, W_BS, 0, 0); lift5(b +w2, temp+w2, temp , 1, 1, 1, width, W_CM, W_CO, W_CS, 1, 0); lift (b , temp , b +w2, 1, 1, 1, width, W_DM, W_DO, W_DS, 0, 0); } static void vertical_decompose97iH0(int *b0, int *b1, int *b2, int width){ int i; for(i=0; i>W_AS; } } static void vertical_decompose97iH1(int *b0, int *b1, int *b2, int width){ int i; for(i=0; i>W_CS; #else int r= 3*(b0[i] + b2[i]); r+= r>>4; r+= r>>8; b1[i] += (r+W_CO)>>W_CS; #endif } } static void vertical_decompose97iL0(int *b0, int *b1, int *b2, int width){ int i; for(i=0; i>W_BS; } } static void vertical_decompose97iL1(int *b0, int *b1, int *b2, int width){ int i; for(i=0; i>W_DS; } } static void spatial_decompose97i(int *buffer, int width, int height, int stride){ int x, y; DWTELEM *b0= buffer + mirror(-4-1, height-1)*stride; DWTELEM *b1= buffer + mirror(-4 , height-1)*stride; DWTELEM *b2= buffer + mirror(-4+1, height-1)*stride; DWTELEM *b3= buffer + mirror(-4+2, height-1)*stride; for(y=-4; y400){ STOP_TIMER("horizontal_decompose97i") }} {START_TIMER if(b3 <= b5) vertical_decompose97iH0(b3, b4, b5, width); if(b2 <= b4) vertical_decompose97iL0(b2, b3, b4, width); if(b1 <= b3) vertical_decompose97iH1(b1, b2, b3, width); if(b0 <= b2) vertical_decompose97iL1(b0, b1, b2, width); if(width>400){ STOP_TIMER("vertical_decompose97i") }} b0=b2; b1=b3; b2=b4; b3=b5; } } static void spatial_dwt(SnowContext *s, int *buffer, int width, int height, int stride){ int level; for(level=0; levelspatial_decomposition_count; level++){ switch(s->spatial_decomposition_type){ case 0: spatial_decompose97i(buffer, width>>level, height>>level, stride<>level, height>>level, stride<>level, height>>level, stride<>1; const int w2= (width+1)>>1; int A1,A2,A3,A4, x; #if 0 A2= temp[1 ]; A4= temp[0 ]; A1= temp[0+width2]; A1 -= (A2 + A4)>>1; A4 += (A1 + 1)>>1; b[0+width2] = A1; b[0 ] = A4; for(x=1; x+1>1; A2 += (A1 + A3 + 2)>>2; b[x+width2] = A3; b[x ] = A2; A1= temp[x+1+width2]; A2= temp[x+2 ]; A1 -= (A2 + A4)>>1; A4 += (A1 + A3 + 2)>>2; b[x+1+width2] = A1; b[x+1 ] = A4; } A3= temp[width-1]; A3 -= A2; A2 += (A1 + A3 + 2)>>2; b[width -1] = A3; b[width2-1] = A2; #else lift(temp , b , b+w2, 1, 1, 1, width, 1, 2, 2, 0, 1); lift(temp+w2, b+w2, temp, 1, 1, 1, width, -1, 0, 1, 1, 1); #endif for(x=0; x>1; } } static void vertical_compose53iL0(int *b0, int *b1, int *b2, int width){ int i; for(i=0; i>2; } } static void spatial_compose53i(int *buffer, int width, int height, int stride){ int x, y; DWTELEM *b0= buffer + mirror(-1-1, height-1)*stride; DWTELEM *b1= buffer + mirror(-1 , height-1)*stride; for(y=-1; y<=height; y+=2){ DWTELEM *b2= buffer + mirror(y+1, height-1)*stride; DWTELEM *b3= buffer + mirror(y+2, height-1)*stride; {START_TIMER if(b1 <= b3) vertical_compose53iL0(b1, b2, b3, width); if(b0 <= b2) vertical_compose53iH0(b0, b1, b2, width); STOP_TIMER("vertical_compose53i*")} {START_TIMER if(y-1 >= 0) horizontal_compose53i(b0, width); if(b0 <= b2) horizontal_compose53i(b1, width); STOP_TIMER("horizontal_compose53i")} b0=b2; b1=b3; } } static void horizontal_compose97i(int *b, int width){ int temp[width]; const int w2= (width+1)>>1; lift (temp , b , b +w2, 1, 1, 1, width, W_DM, W_DO, W_DS, 0, 1); lift5(temp+w2, b +w2, temp , 1, 1, 1, width, W_CM, W_CO, W_CS, 1, 1); lift (b , temp , temp+w2, 2, 1, 1, width, -W_BM, W_BO, W_BS, 0, 1); lift (b+1 , temp+w2, b , 2, 1, 2, width, -W_AM, W_AO, W_AS, 1, 1); } static void vertical_compose97iH0(int *b0, int *b1, int *b2, int width){ int i; for(i=0; i>W_AS; } } static void vertical_compose97iH1(int *b0, int *b1, int *b2, int width){ int i; for(i=0; i>W_CS; #else int r= 3*(b0[i] + b2[i]); r+= r>>4; r+= r>>8; b1[i] -= (r+W_CO)>>W_CS; #endif } } static void vertical_compose97iL0(int *b0, int *b1, int *b2, int width){ int i; for(i=0; i>W_BS; } } static void vertical_compose97iL1(int *b0, int *b1, int *b2, int width){ int i; for(i=0; i>W_DS; } } static void spatial_compose97i(int *buffer, int width, int height, int stride){ int x, y; DWTELEM *b0= buffer + mirror(-3-1, height-1)*stride; DWTELEM *b1= buffer + mirror(-3 , height-1)*stride; DWTELEM *b2= buffer + mirror(-3+1, height-1)*stride; DWTELEM *b3= buffer + mirror(-3+2, height-1)*stride; for(y=-3; y<=height; y+=2){ DWTELEM *b4= buffer + mirror(y+3, height-1)*stride; DWTELEM *b5= buffer + mirror(y+4, height-1)*stride; if(stride == width && y+4 < height && 0){ int x; for(x=0; x400){ STOP_TIMER("vertical_compose97i")}} {START_TIMER if(y-1>= 0) horizontal_compose97i(b0, width); if(b0 <= b2) horizontal_compose97i(b1, width); if(width>400 && b0 <= b2){ STOP_TIMER("horizontal_compose97i")}} b0=b2; b1=b3; b2=b4; b3=b5; } } static void spatial_idwt(SnowContext *s, int *buffer, int width, int height, int stride){ int level; for(level=s->spatial_decomposition_count-1; level>=0; level--){ switch(s->spatial_decomposition_type){ case 0: spatial_compose97i(buffer, width>>level, height>>level, stride<>level, height>>level, stride<>level, height>>level, stride<level; const int w= b->width; const int h= b->height; int x, y; #if 0 if(orientation==3 && parent && 0){ int16_t candidate[w*h][2]; uint8_t state[w*h]; int16_t boarder[3][w*h*4][2]; int16_t significant[w*h][2]; int candidate_count=0; int boarder_count[3]={0,0,0}; int significant_count=0; int rle_pos=0; int v, last_v; int primary= orientation==1; memset(candidate, 0, sizeof(candidate)); memset(state, 0, sizeof(state)); memset(boarder, 0, sizeof(boarder)); for(y=0; y>1) + (y>>1)*2*stride]) SVI(candidate, candidate_count, x, y) } } for(;;){ while(candidate_count && !boarder_count[0] && !boarder_count[1] && !boarder_count[2]){ candidate_count--; x= candidate[ candidate_count][0]; y= candidate[ candidate_count][1]; if(state[x + y*w]) continue; state[x + y*w]= 1; v= !!src[x + y*stride]; put_cabac(&s->c, &b->state[0][0], v); if(v){ SVI(significant, significant_count, x,y) if(x && !state[x - 1 + y *w]) SVI(boarder[0],boarder_count[0],x-1,y ) if(y && !state[x + (y-1)*w]) SVI(boarder[1],boarder_count[1],x ,y-1) if(x+1c, b->state[1], run, 0); SVI(significant, significant_count, x,y) if(x && !state[x - 1 + y *w]) SVI(boarder[0],boarder_count[0],x-1,y ) if(y && !state[x + (y-1)*w]) SVI(boarder[1],boarder_count[1],x ,y-1) if(x+1c, &b->state[0][index+1], v); if(v){ SVI(significant, significant_count, x,y) if(x && !state[x - 1 + y *w]) SVI(boarder[0],boarder_count[0],x-1,y ) if(y && !state[x + (y-1)*w]) SVI(boarder[1],boarder_count[1],x ,y-1) if(x+1c, b->state[context + 2], v, 1); //FIXME try to avoid first bit, try this with the old code too!! last_v= v; } } #endif if(1){ int run=0; int runs[w*h]; int run_index=0; for(y=0; y 1){ if(orientation==1) ll= src[y + (x-2)*stride]; else ll= src[x - 2 + y*stride]; }*/ } if(parent){ int px= x>>1; int py= y>>1; if(pxparent->width && pyparent->height) p= parent[px + py*2*stride]; } if(!(/*ll|*/l|lt|t|rt|p)){ if(v){ runs[run_index++]= run; run=0; }else{ run++; } } } } runs[run_index++]= run; run_index=0; run= runs[run_index++]; put_symbol(&s->c, b->state[1], run, 0); for(y=0; y 1){ if(orientation==1) ll= src[y + (x-2)*stride]; else ll= src[x - 2 + y*stride]; }*/ } if(parent){ int px= x>>1; int py= y>>1; if(pxparent->width && pyparent->height) p= parent[px + py*2*stride]; } if(/*ll|*/l|lt|t|rt|p){ int context= av_log2(/*ABS(ll) + */3*ABS(l) + ABS(lt) + 2*ABS(t) + ABS(rt) + ABS(p)); put_cabac(&s->c, &b->state[0][context], !!v); }else{ if(!run){ run= runs[run_index++]; put_symbol(&s->c, b->state[1], run, 0); assert(v); }else{ run--; assert(!v); } } if(v){ int context= av_log2(/*ABS(ll) + */3*ABS(l) + ABS(lt) + 2*ABS(t) + ABS(rt) + ABS(p)); put_symbol(&s->c, b->state[context + 2], ABS(v)-1, 0); put_cabac(&s->c, &b->state[0][16 + 1 + 3 + quant3b[l&0xFF] + 3*quant3b[t&0xFF]], v<0); } } } return; } } static inline void decode_subband(SnowContext *s, SubBand *b, DWTELEM *src, DWTELEM *parent, int stride, int orientation){ const int level= b->level; const int w= b->width; const int h= b->height; int x,y; START_TIMER if(1){ int run; for(y=0; yheight; y++) memset(&src[y*stride], 0, b->width*sizeof(DWTELEM)); run= get_symbol(&s->c, b->state[1], 0); for(y=0; y 1){ if(orientation==1) ll= src[y + (x-2)*stride]; else ll= src[x - 2 + y*stride]; }*/ } if(parent){ int px= x>>1; int py= y>>1; if(pxparent->width && pyparent->height) p= parent[px + py*2*stride]; } if(/*ll|*/l|lt|t|rt|p){ int context= av_log2(/*ABS(ll) + */3*ABS(l) + ABS(lt) + 2*ABS(t) + ABS(rt) + ABS(p)); v=get_cabac(&s->c, &b->state[0][context]); }else{ if(!run){ run= get_symbol(&s->c, b->state[1], 0); //FIXME optimize this here //FIXME try to store a more naive run v=1; }else{ run--; v=0; } } if(v){ int context= av_log2(/*ABS(ll) + */3*ABS(l) + ABS(lt) + 2*ABS(t) + ABS(rt) + ABS(p)); v= get_symbol(&s->c, b->state[context + 2], 0) + 1; if(get_cabac(&s->c, &b->state[0][16 + 1 + 3 + quant3b[l&0xFF] + 3*quant3b[t&0xFF]])) v= -v; src[x + y*stride]= v; } } } if(level+1 == s->spatial_decomposition_count){ STOP_TIMER("decode_subband") } return; } } static void reset_contexts(SnowContext *s){ int plane_index, level, orientation; for(plane_index=0; plane_index<2; plane_index++){ for(level=0; levelspatial_decomposition_count; level++){ for(orientation=level ? 1:0; orientation<4; orientation++){ memset(s->plane[plane_index].band[level][orientation].state, 0, sizeof(s->plane[plane_index].band[level][orientation].state)); } } } memset(s->mb_band.state, 0, sizeof(s->mb_band.state)); memset(s->mv_band[0].state, 0, sizeof(s->mv_band[0].state)); memset(s->mv_band[1].state, 0, sizeof(s->mv_band[1].state)); memset(s->header_state, 0, sizeof(s->header_state)); } static void mc_block(uint8_t *dst, uint8_t *src, uint8_t *tmp, int stride, int b_w, int b_h, int dx, int dy){ int x, y; for(y=0; y < b_h+5; y++){ for(x=0; x < b_w; x++){ int a0= src[x + y*stride]; int a1= src[x + 1 + y*stride]; int a2= src[x + 2 + y*stride]; int a3= src[x + 3 + y*stride]; int a4= src[x + 4 + y*stride]; int a5= src[x + 5 + y*stride]; // int am= 9*(a1+a2) - (a0+a3); int am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5); // int am= 18*(a2+a3) - 2*(a1+a4); // int aL= (-7*a0 + 105*a1 + 35*a2 - 5*a3)>>3; // int aR= (-7*a3 + 105*a2 + 35*a1 - 5*a0)>>3; // if(b_w==16) am= 8*(a1+a2); if(dx<8) tmp[x + y*stride]= (32*a2*( 8-dx) + am* dx + 128)>>8; else tmp[x + y*stride]= ( am*(16-dx) + 32*a3*(dx-8) + 128)>>8; /* if (dx< 4) tmp[x + y*stride]= (16*a1*( 4-dx) + aL* dx + 32)>>6; else if(dx< 8) tmp[x + y*stride]= ( aL*( 8-dx) + am*(dx- 4) + 32)>>6; else if(dx<12) tmp[x + y*stride]= ( am*(12-dx) + aR*(dx- 8) + 32)>>6; else tmp[x + y*stride]= ( aR*(16-dx) + 16*a2*(dx-12) + 32)>>6;*/ } } for(y=0; y < b_h; y++){ for(x=0; x < b_w; x++){ int a0= tmp[x + y *stride]; int a1= tmp[x + (y + 1)*stride]; int a2= tmp[x + (y + 2)*stride]; int a3= tmp[x + (y + 3)*stride]; int a4= tmp[x + (y + 4)*stride]; int a5= tmp[x + (y + 5)*stride]; int am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5); // int am= 18*(a2+a3) - 2*(a1+a4); /* int aL= (-7*a0 + 105*a1 + 35*a2 - 5*a3)>>3; int aR= (-7*a3 + 105*a2 + 35*a1 - 5*a0)>>3;*/ // if(b_w==16) am= 8*(a1+a2); if(dy<8) dst[x + y*stride]= (32*a2*( 8-dy) + am* dy + 128)>>8; else dst[x + y*stride]= ( am*(16-dy) + 32*a3*(dy-8) + 128)>>8; /* if (dy< 4) tmp[x + y*stride]= (16*a1*( 4-dy) + aL* dy + 32)>>6; else if(dy< 8) tmp[x + y*stride]= ( aL*( 8-dy) + am*(dy- 4) + 32)>>6; else if(dy<12) tmp[x + y*stride]= ( am*(12-dy) + aR*(dy- 8) + 32)>>6; else tmp[x + y*stride]= ( aR*(16-dy) + 16*a2*(dy-12) + 32)>>6;*/ } } } #define mcb(dx,dy,b_w)\ static void mc_block ## dx ## dy(uint8_t *dst, uint8_t *src, int stride){\ uint8_t tmp[stride*(b_w+5)];\ mc_block(dst, src-2-2*stride, tmp, stride, b_w, b_w, dx, dy);\ } mcb( 0, 0,16) mcb( 4, 0,16) mcb( 8, 0,16) mcb(12, 0,16) mcb( 0, 4,16) mcb( 4, 4,16) mcb( 8, 4,16) mcb(12, 4,16) mcb( 0, 8,16) mcb( 4, 8,16) mcb( 8, 8,16) mcb(12, 8,16) mcb( 0,12,16) mcb( 4,12,16) mcb( 8,12,16) mcb(12,12,16) #define mca(dx,dy,b_w)\ static void mc_block_hpel ## dx ## dy(uint8_t *dst, uint8_t *src, int stride, int h){\ uint8_t tmp[stride*(b_w+5)];\ assert(h==b_w);\ mc_block(dst, src-2-2*stride, tmp, stride, b_w, b_w, dx, dy);\ } mca( 0, 0,16) mca( 8, 0,16) mca( 0, 8,16) mca( 8, 8,16) static void add_xblock(DWTELEM *dst, uint8_t *src, uint8_t *obmc, int s_x, int s_y, int b_w, int b_h, int mv_x, int mv_y, int w, int h, int dst_stride, int src_stride, int obmc_stride, int mb_type, int add){ uint8_t tmp[src_stride*(b_h+5)]; //FIXME move to context to gurantee alignment int x,y; if(s_x<0){ obmc -= s_x; b_w += s_x; s_x=0; }else if(s_x + b_w > w){ b_w = w - s_x; } if(s_y<0){ obmc -= s_y*obmc_stride; b_h += s_y; s_y=0; }else if(s_y + b_h> h){ b_h = h - s_y; } if(b_w<=0 || b_h<=0) return; dst += s_x + s_y*dst_stride; if(mb_type==1){ src += s_x + s_y*src_stride; for(y=0; y < b_h; y++){ for(x=0; x < b_w; x++){ if(add) dst[x + y*dst_stride] += obmc[x + y*obmc_stride] * 128 * (256/OBMC_MAX); else dst[x + y*dst_stride] -= obmc[x + y*obmc_stride] * 128 * (256/OBMC_MAX); } } }else{ int dx= mv_x&15; int dy= mv_y&15; // int dxy= (mv_x&1) + 2*(mv_y&1); s_x += (mv_x>>4) - 2; s_y += (mv_y>>4) - 2; src += s_x + s_y*src_stride; //use dsputil if( (unsigned)s_x >= w - b_w - 4 || (unsigned)s_y >= h - b_h - 4){ ff_emulated_edge_mc(tmp + 32, src, src_stride, b_w+5, b_h+5, s_x, s_y, w, h); src= tmp + 32; } if(mb_type==0){ mc_block(tmp, src, tmp + 64+8, src_stride, b_w, b_h, dx, dy); }else{ int sum=0; for(y=0; y < b_h; y++){ for(x=0; x < b_w; x++){ sum += src[x+ y*src_stride]; } } sum= (sum + b_h*b_w/2) / (b_h*b_w); for(y=0; y < b_h; y++){ for(x=0; x < b_w; x++){ tmp[x + y*src_stride]= sum; } } } for(y=0; y < b_h; y++){ for(x=0; x < b_w; x++){ if(add) dst[x + y*dst_stride] += obmc[x + y*obmc_stride] * tmp[x + y*src_stride] * (256/OBMC_MAX); else dst[x + y*dst_stride] -= obmc[x + y*obmc_stride] * tmp[x + y*src_stride] * (256/OBMC_MAX); } } } } static void predict_plane(SnowContext *s, DWTELEM *buf, int plane_index, int add){ Plane *p= &s->plane[plane_index]; const int mb_w= s->mb_band.width; const int mb_h= s->mb_band.height; const int mb_stride= s->mb_band.stride; int x, y, mb_x, mb_y; int scale = plane_index ? s->mv_scale : 2*s->mv_scale; int block_w = plane_index ? 8 : 16; uint8_t *obmc = plane_index ? obmc16 : obmc32; int obmc_stride= plane_index ? 16 : 32; int ref_stride= s->last_picture.linesize[plane_index]; uint8_t *ref = s->last_picture.data[plane_index]; int w= p->width; int h= p->height; if(s->avctx->debug&512){ for(y=0; ymv_band[0].buf[index]*scale, s->mv_band[1].buf[index]*scale, w, h, w, ref_stride, obmc_stride, s->mb_band.buf[index], add); } } } static void quantize(SnowContext *s, SubBand *b, DWTELEM *src, int stride, int bias){ const int level= b->level; const int w= b->width; const int h= b->height; const int qlog= clip(s->qlog + b->qlog, 0, 128); const int qmul= qexp[qlog&7]<<(qlog>>3); int x,y, thres1, thres2; START_TIMER assert(QROOT==8); bias= bias ? 0 : (3*qmul)>>3; thres1= ((qmul - bias)>>QEXPSHIFT) - 1; thres2= 2*thres1; if(!bias){ for(y=0; y thres2){ if(i>=0){ i<<= QEXPSHIFT; i/= qmul; //FIXME optimize src[x + y*stride]= i; }else{ i= -i; i<<= QEXPSHIFT; i/= qmul; //FIXME optimize src[x + y*stride]= -i; } }else src[x + y*stride]= 0; } } }else{ for(y=0; y thres2){ if(i>=0){ i<<= QEXPSHIFT; i= (i + bias) / qmul; //FIXME optimize src[x + y*stride]= i; }else{ i= -i; i<<= QEXPSHIFT; i= (i + bias) / qmul; //FIXME optimize src[x + y*stride]= -i; } }else src[x + y*stride]= 0; } } } if(level+1 == s->spatial_decomposition_count){ // STOP_TIMER("quantize") } } static void dequantize(SnowContext *s, SubBand *b, DWTELEM *src, int stride){ const int level= b->level; const int w= b->width; const int h= b->height; const int qlog= clip(s->qlog + b->qlog, 0, 128); const int qmul= qexp[qlog&7]<<(qlog>>3); const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT; int x,y; assert(QROOT==8); for(y=0; y>(QEXPSHIFT)); //FIXME try different bias }else if(i>0){ src[x + y*stride]= (( i*qmul + qadd)>>(QEXPSHIFT)); } } } } static void decorrelate(SnowContext *s, SubBand *b, DWTELEM *src, int stride, int inverse, int use_median){ const int w= b->width; const int h= b->height; int x,y; for(y=h-1; y>=0; y--){ for(x=w-1; x>=0; x--){ int i= x + y*stride; if(x){ if(use_median){ if(y && x+1width; const int h= b->height; int x,y; for(y=0; yc, s->header_state, s->keyframe); // state clearing stuff? if(s->keyframe){ put_symbol(&s->c, s->header_state, s->version, 0); put_symbol(&s->c, s->header_state, s->temporal_decomposition_type, 0); put_symbol(&s->c, s->header_state, s->temporal_decomposition_count, 0); put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0); put_symbol(&s->c, s->header_state, s->colorspace_type, 0); put_symbol(&s->c, s->header_state, s->b_width, 0); put_symbol(&s->c, s->header_state, s->b_height, 0); put_symbol(&s->c, s->header_state, s->chroma_h_shift, 0); put_symbol(&s->c, s->header_state, s->chroma_v_shift, 0); put_cabac(&s->c, s->header_state, s->spatial_scalability); // put_cabac(&s->c, s->header_state, s->rate_scalability); for(plane_index=0; plane_index<2; plane_index++){ for(level=0; levelspatial_decomposition_count; level++){ for(orientation=level ? 1:0; orientation<4; orientation++){ if(orientation==2) continue; put_symbol(&s->c, s->header_state, s->plane[plane_index].band[level][orientation].qlog, 1); } } } } put_symbol(&s->c, s->header_state, s->spatial_decomposition_type, 0); put_symbol(&s->c, s->header_state, s->qlog, 1); put_symbol(&s->c, s->header_state, s->mv_scale, 0); put_symbol(&s->c, s->header_state, s->qbias, 1); } static int decode_header(SnowContext *s){ int plane_index, level, orientation; s->keyframe= get_cabac(&s->c, s->header_state); if(s->keyframe){ s->version= get_symbol(&s->c, s->header_state, 0); if(s->version>0){ av_log(s->avctx, AV_LOG_ERROR, "version %d not supported", s->version); return -1; } s->temporal_decomposition_type= get_symbol(&s->c, s->header_state, 0); s->temporal_decomposition_count= get_symbol(&s->c, s->header_state, 0); s->spatial_decomposition_count= get_symbol(&s->c, s->header_state, 0); s->colorspace_type= get_symbol(&s->c, s->header_state, 0); s->b_width= get_symbol(&s->c, s->header_state, 0); s->b_height= get_symbol(&s->c, s->header_state, 0); s->chroma_h_shift= get_symbol(&s->c, s->header_state, 0); s->chroma_v_shift= get_symbol(&s->c, s->header_state, 0); s->spatial_scalability= get_cabac(&s->c, s->header_state); // s->rate_scalability= get_cabac(&s->c, s->header_state); for(plane_index=0; plane_index<3; plane_index++){ for(level=0; levelspatial_decomposition_count; level++){ for(orientation=level ? 1:0; orientation<4; orientation++){ int q; if (plane_index==2) q= s->plane[1].band[level][orientation].qlog; else if(orientation==2) q= s->plane[plane_index].band[level][1].qlog; else q= get_symbol(&s->c, s->header_state, 1); s->plane[plane_index].band[level][orientation].qlog= q; } } } } s->spatial_decomposition_type= get_symbol(&s->c, s->header_state, 0); if(s->spatial_decomposition_type > 2){ av_log(s->avctx, AV_LOG_ERROR, "spatial_decomposition_type %d not supported", s->spatial_decomposition_type); return -1; } s->qlog= get_symbol(&s->c, s->header_state, 1); s->mv_scale= get_symbol(&s->c, s->header_state, 0); s->qbias= get_symbol(&s->c, s->header_state, 1); return 0; } static int common_init(AVCodecContext *avctx){ SnowContext *s = avctx->priv_data; int width, height; int level, orientation, plane_index, dec; s->avctx= avctx; dsputil_init(&s->dsp, avctx); #define mcf(dx,dy)\ s->dsp.put_qpel_pixels_tab [0][dy+dx/4]=\ s->dsp.put_no_rnd_qpel_pixels_tab[0][dy+dx/4]=\ mc_block ## dx ## dy; mcf( 0, 0) mcf( 4, 0) mcf( 8, 0) mcf(12, 0) mcf( 0, 4) mcf( 4, 4) mcf( 8, 4) mcf(12, 4) mcf( 0, 8) mcf( 4, 8) mcf( 8, 8) mcf(12, 8) mcf( 0,12) mcf( 4,12) mcf( 8,12) mcf(12,12) #define mcfh(dx,dy)\ s->dsp.put_pixels_tab [0][dy/4+dx/8]=\ s->dsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\ mc_block_hpel ## dx ## dy; mcfh(0, 0) mcfh(8, 0) mcfh(0, 8) mcfh(8, 8) dec= s->spatial_decomposition_count= 5; s->spatial_decomposition_type= avctx->prediction_method; //FIXME add decorrelator type r transform_type s->chroma_h_shift= 1; //FIXME XXX s->chroma_v_shift= 1; // dec += FFMAX(s->chroma_h_shift, s->chroma_v_shift); s->b_width = (s->avctx->width +(1<>dec; s->b_height= (s->avctx->height+(1<>dec; s->spatial_dwt_buffer= av_mallocz(s->b_width*s->b_height*sizeof(DWTELEM)<<(2*dec)); s->pred_buffer= av_mallocz(s->b_width*s->b_height*sizeof(DWTELEM)<<(2*dec)); s->mv_scale= (s->avctx->flags & CODEC_FLAG_QPEL) ? 2 : 4; for(plane_index=0; plane_index<3; plane_index++){ int w= s->avctx->width; int h= s->avctx->height; if(plane_index){ w>>= s->chroma_h_shift; h>>= s->chroma_v_shift; } s->plane[plane_index].width = w; s->plane[plane_index].height= h; av_log(NULL, AV_LOG_DEBUG, "%d %d\n", w, h); for(level=s->spatial_decomposition_count-1; level>=0; level--){ for(orientation=level ? 1 : 0; orientation<4; orientation++){ SubBand *b= &s->plane[plane_index].band[level][orientation]; b->buf= s->spatial_dwt_buffer; b->level= level; b->stride= s->plane[plane_index].width << (s->spatial_decomposition_count - level); b->width = (w + !(orientation&1))>>1; b->height= (h + !(orientation>1))>>1; if(orientation&1) b->buf += (w+1)>>1; if(orientation>1) b->buf += b->stride>>1; if(level) b->parent= &s->plane[plane_index].band[level-1][orientation]; } w= (w+1)>>1; h= (h+1)>>1; } } //FIXME init_subband() ? s->mb_band.stride= s->mv_band[0].stride= s->mv_band[1].stride= s->mb_band.width = s->mv_band[0].width = s->mv_band[1].width = (s->avctx->width + 15)>>4; s->mb_band.height= s->mv_band[0].height= s->mv_band[1].height= (s->avctx->height+ 15)>>4; s->mb_band .buf= av_mallocz(s->mb_band .stride * s->mb_band .height*sizeof(DWTELEM)); s->mv_band[0].buf= av_mallocz(s->mv_band[0].stride * s->mv_band[0].height*sizeof(DWTELEM)); s->mv_band[1].buf= av_mallocz(s->mv_band[1].stride * s->mv_band[1].height*sizeof(DWTELEM)); reset_contexts(s); /* width= s->width= avctx->width; height= s->height= avctx->height; assert(width && height); */ s->avctx->get_buffer(s->avctx, &s->mconly_picture); return 0; } static void calculate_vissual_weight(SnowContext *s, Plane *p){ int width = p->width; int height= p->height; int i, level, orientation, x, y; for(level=0; levelspatial_decomposition_count; level++){ for(orientation=level ? 1 : 0; orientation<4; orientation++){ SubBand *b= &p->band[level][orientation]; DWTELEM *buf= b->buf; int64_t error=0; memset(s->spatial_dwt_buffer, 0, sizeof(int)*width*height); buf[b->width/2 + b->height/2*b->stride]= 256*256; spatial_idwt(s, s->spatial_dwt_buffer, width, height, width); for(y=0; yspatial_dwt_buffer[x + y*width]; error += d*d; } } b->qlog= (int)(log(352256.0/sqrt(error)) / log(pow(2.0, 1.0/QROOT))+0.5); av_log(NULL, AV_LOG_DEBUG, "%d %d %d\n", level, orientation, b->qlog/*, sqrt(error)*/); } } } static int encode_init(AVCodecContext *avctx) { SnowContext *s = avctx->priv_data; int i; int level, orientation, plane_index; if(avctx->strict_std_compliance >= 0){ av_log(avctx, AV_LOG_ERROR, "this codec is under development, files encoded with it wont be decodeable with future versions!!!\n" "use vstrict=-1 to use it anyway\n"); return -1; } common_init(avctx); s->version=0; s->m.me.scratchpad= av_mallocz((avctx->width+64)*2*16*2*sizeof(uint8_t)); s->m.me.map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t)); s->m.me.score_map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t)); s->mb_type = av_mallocz((s->mb_band.width+1)*s->mb_band.height*sizeof(int16_t)); s->mb_mean = av_mallocz((s->mb_band.width+1)*s->mb_band.height*sizeof(int8_t )); s->dummy = av_mallocz((s->mb_band.width+1)*s->mb_band.height*sizeof(int32_t)); h263_encode_init(&s->m); //mv_penalty for(plane_index=0; plane_index<3; plane_index++){ calculate_vissual_weight(s, &s->plane[plane_index]); } avctx->coded_frame= &s->current_picture; switch(avctx->pix_fmt){ // case PIX_FMT_YUV444P: // case PIX_FMT_YUV422P: case PIX_FMT_YUV420P: case PIX_FMT_GRAY8: // case PIX_FMT_YUV411P: // case PIX_FMT_YUV410P: s->colorspace_type= 0; break; /* case PIX_FMT_RGBA32: s->colorspace= 1; break;*/ default: av_log(avctx, AV_LOG_ERROR, "format not supported\n"); return -1; } // avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift); s->chroma_h_shift= 1; s->chroma_v_shift= 1; return 0; } static int frame_start(SnowContext *s){ AVFrame tmp; if(s->keyframe) reset_contexts(s); tmp= s->last_picture; s->last_picture= s->current_picture; s->current_picture= tmp; s->current_picture.reference= 1; if(s->avctx->get_buffer(s->avctx, &s->current_picture) < 0){ av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n"); return -1; } return 0; } static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){ SnowContext *s = avctx->priv_data; CABACContext * const c= &s->c; AVFrame *pict = data; const int width= s->avctx->width; const int height= s->avctx->height; int used_count= 0; int log2_threshold, level, orientation, plane_index, i; ff_init_cabac_encoder(c, buf, buf_size); ff_init_cabac_states(c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64); s->input_picture = *pict; memset(s->header_state, 0, sizeof(s->header_state)); s->keyframe=avctx->gop_size==0 || avctx->frame_number % avctx->gop_size == 0; pict->pict_type= s->keyframe ? FF_I_TYPE : FF_P_TYPE; s->qlog= rint(QROOT*log(pict->quality / (float)FF_QP2LAMBDA)/log(2)); //<64 >60 s->qlog += 61; for(i=0; imb_band.stride * s->mb_band.height; i++){ s->mb_band.buf[i]= s->keyframe; } frame_start(s); if(pict->pict_type == P_TYPE){ int block_width = (width +15)>>4; int block_height= (height+15)>>4; int stride= s->current_picture.linesize[0]; uint8_t *src_plane= s->input_picture.data[0]; int src_stride= s->input_picture.linesize[0]; int x,y; assert(s->current_picture.data[0]); assert(s->last_picture.data[0]); s->m.avctx= s->avctx; s->m.current_picture.data[0]= s->current_picture.data[0]; s->m. last_picture.data[0]= s-> last_picture.data[0]; s->m. new_picture.data[0]= s-> input_picture.data[0]; s->m.current_picture_ptr= &s->m.current_picture; s->m. last_picture_ptr= &s->m. last_picture; s->m.linesize= s->m. last_picture.linesize[0]= s->m. new_picture.linesize[0]= s->m.current_picture.linesize[0]= stride; s->m.width = width; s->m.height= height; s->m.mb_width = block_width; s->m.mb_height= block_height; s->m.mb_stride= s->m.mb_width+1; s->m.b8_stride= 2*s->m.mb_width+1; s->m.f_code=1; s->m.pict_type= pict->pict_type; s->m.me_method= s->avctx->me_method; s->m.me.scene_change_score=0; s->m.flags= s->avctx->flags; s->m.quarter_sample= (s->avctx->flags & CODEC_FLAG_QPEL)!=0; s->m.out_format= FMT_H263; s->m.unrestricted_mv= 1; s->m.lambda= pict->quality * 3/2; //FIXME bug somewhere else s->m.qscale= (s->m.lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7); s->m.lambda2= (s->m.lambda*s->m.lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT; if(!s->motion_val8){ s->motion_val8 = av_mallocz(s->m.b8_stride*block_height*2*2*sizeof(int16_t)); s->motion_val16= av_mallocz(s->m.mb_stride*block_height*2*sizeof(int16_t)); } s->m.mb_type= s->mb_type; //dummies, to avoid segfaults s->m.current_picture.mb_mean = s->mb_mean; s->m.current_picture.mb_var = (int16_t*)s->dummy; s->m.current_picture.mc_mb_var= (int16_t*)s->dummy; s->m.current_picture.mb_type = s->dummy; s->m.current_picture.motion_val[0]= s->motion_val8; s->m.p_mv_table= s->motion_val16; s->m.dsp= s->dsp; //move ff_init_me(&s->m); s->m.me.pre_pass=1; s->m.me.dia_size= s->avctx->pre_dia_size; s->m.first_slice_line=1; for(y= block_height-1; y >= 0; y--) { uint8_t src[stride*16]; s->m.new_picture.data[0]= src - y*16*stride; //ugly s->m.mb_y= y; for(i=0; i<16 && i + 16*y=0 ;x--) { s->m.mb_x= x; ff_init_block_index(&s->m); ff_update_block_index(&s->m); ff_pre_estimate_p_frame_motion(&s->m, x, y); } s->m.first_slice_line=0; } s->m.me.pre_pass=0; s->m.me.dia_size= s->avctx->dia_size; s->m.first_slice_line=1; for (y = 0; y < block_height; y++) { uint8_t src[stride*16]; s->m.new_picture.data[0]= src - y*16*stride; //ugly s->m.mb_y= y; assert(width <= stride); assert(width <= 16*block_width); for(i=0; i<16 && i + 16*ymb_band.stride); s->m.mb_x= x; ff_init_block_index(&s->m); ff_update_block_index(&s->m); ff_estimate_p_frame_motion(&s->m, x, y); s->mb_band .buf[mb_xy]= (s->m.mb_type[x + y*s->m.mb_stride]&CANDIDATE_MB_TYPE_INTER) ? 0 : 2; s->mv_band[0].buf[mb_xy]= s->motion_val16[x + y*s->m.mb_stride][0]; s->mv_band[1].buf[mb_xy]= s->motion_val16[x + y*s->m.mb_stride][1]; if(s->mb_band .buf[x + y*(s->mb_band.stride)]==2 && 0){ int dc0=128, dc1=128, dc, dc2, dir; int offset= (s->avctx->flags & CODEC_FLAG_QPEL) ? 64 : 32; dc =s->mb_mean[x + y *s->m.mb_stride ]; if(x) dc0=s->mb_mean[x + y *s->m.mb_stride - 1]; if(y) dc1=s->mb_mean[x + (y-1)*s->m.mb_stride ]; dc2= (dc0+dc1)>>1; #if 0 if (ABS(dc0 - dc) < ABS(dc1 - dc) && ABS(dc0 - dc) < ABS(dc2 - dc)) dir= 1; else if(ABS(dc0 - dc) >=ABS(dc1 - dc) && ABS(dc1 - dc) < ABS(dc2 - dc)) dir=-1; else dir=0; #endif if(ABS(dc0 - dc) < ABS(dc1 - dc) && x){ s->mv_band[0].buf[mb_xy]= s->mv_band[0].buf[x + y*(s->mb_band.stride)-1] - offset; s->mv_band[1].buf[mb_xy]= s->mv_band[1].buf[x + y*(s->mb_band.stride)-1]; s->mb_mean[x + y *s->m.mb_stride ]= dc0; }else if(y){ s->mv_band[0].buf[mb_xy]= s->mv_band[0].buf[x + (y-1)*(s->mb_band.stride)]; s->mv_band[1].buf[mb_xy]= s->mv_band[1].buf[x + (y-1)*(s->mb_band.stride)] - offset; s->mb_mean[x + y *s->m.mb_stride ]= dc1; } } // s->mb_band .buf[x + y*(s->mb_band.stride)]=1; //FIXME intra only test } s->m.first_slice_line=0; } assert(s->m.pict_type == P_TYPE); if(s->m.me.scene_change_score > s->avctx->scenechange_threshold){ s->m.pict_type= pict->pict_type =I_TYPE; for(i=0; imb_band.stride * s->mb_band.height; i++){ s->mb_band.buf[i]= 1; s->mv_band[0].buf[i]= s->mv_band[1].buf[i]= 0; } //printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum); } } s->m.first_slice_line=1; s->qbias= pict->pict_type == P_TYPE ? 2 : 0; encode_header(s); decorrelate(s, &s->mb_band , s->mb_band .buf, s->mb_band .stride, 0, 1); decorrelate(s, &s->mv_band[0], s->mv_band[0].buf, s->mv_band[0].stride, 0, 1); decorrelate(s, &s->mv_band[1], s->mv_band[1].buf, s->mv_band[1].stride, 0 ,1); encode_subband(s, &s->mb_band , s->mb_band .buf, NULL, s->mb_band .stride, 0); encode_subband(s, &s->mv_band[0], s->mv_band[0].buf, NULL, s->mv_band[0].stride, 0); encode_subband(s, &s->mv_band[1], s->mv_band[1].buf, NULL, s->mv_band[1].stride, 0); //FIXME avoid this correlate(s, &s->mb_band , s->mb_band .buf, s->mb_band .stride, 1, 1); correlate(s, &s->mv_band[0], s->mv_band[0].buf, s->mv_band[0].stride, 1, 1); correlate(s, &s->mv_band[1], s->mv_band[1].buf, s->mv_band[1].stride, 1, 1); for(plane_index=0; plane_index<3; plane_index++){ Plane *p= &s->plane[plane_index]; int w= p->width; int h= p->height; int x, y; int bits= put_bits_count(&s->c.pb); //FIXME optimize #if QPRED memset(s->pred_buffer, 0, sizeof(DWTELEM)*w*h); predict_plane(s, s->pred_buffer, plane_index, 1); spatial_dwt(s, s->pred_buffer, w, h, w); for(level=0; levelspatial_decomposition_count; level++){ for(orientation=level ? 1 : 0; orientation<4; orientation++){ SubBand *b= &p->band[level][orientation]; int delta= ((int)s->pred_buffer - (int)s->spatial_dwt_buffer)/sizeof(DWTELEM); quantize (s, b, b->buf + delta, b->stride, s->qbias); dequantize(s, b, b->buf + delta, b->stride); } } for(y=0; yspatial_dwt_buffer[y*w + x]= pict->data[plane_index][y*pict->linesize[plane_index] + x]<<8; } } spatial_dwt(s, s->spatial_dwt_buffer, w, h, w); for(y=0; yspatial_dwt_buffer[y*w + x]-= s->pred_buffer[y*w + x]; } } #else if(pict->data[plane_index]) //FIXME gray hack for(y=0; yspatial_dwt_buffer[y*w + x]= pict->data[plane_index][y*pict->linesize[plane_index] + x]<<8; } } predict_plane(s, s->spatial_dwt_buffer, plane_index, 0); spatial_dwt(s, s->spatial_dwt_buffer, w, h, w); #endif for(level=0; levelspatial_decomposition_count; level++){ for(orientation=level ? 1 : 0; orientation<4; orientation++){ SubBand *b= &p->band[level][orientation]; quantize(s, b, b->buf, b->stride, s->qbias); if(orientation==0) decorrelate(s, b, b->buf, b->stride, pict->pict_type == P_TYPE, 0); encode_subband(s, b, b->buf, b->parent ? b->parent->buf : NULL, b->stride, orientation); assert(b->parent==NULL || b->parent->stride == b->stride*2); if(orientation==0) correlate(s, b, b->buf, b->stride, 1, 0); } } // av_log(NULL, AV_LOG_DEBUG, "plane:%d bits:%d\n", plane_index, put_bits_count(&s->c.pb) - bits); for(level=0; levelspatial_decomposition_count; level++){ for(orientation=level ? 1 : 0; orientation<4; orientation++){ SubBand *b= &p->band[level][orientation]; dequantize(s, b, b->buf, b->stride); } } #if QPRED for(y=0; yspatial_dwt_buffer[y*w + x]+= s->pred_buffer[y*w + x]; } } spatial_idwt(s, s->spatial_dwt_buffer, w, h, w); #else spatial_idwt(s, s->spatial_dwt_buffer, w, h, w); predict_plane(s, s->spatial_dwt_buffer, plane_index, 1); #endif //FIXME optimize for(y=0; yspatial_dwt_buffer[y*w + x]+128)>>8; if(v&(~255)) v= ~(v>>31); s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]= v; } } if(s->avctx->flags&CODEC_FLAG_PSNR){ int64_t error= 0; if(pict->data[plane_index]) //FIXME gray hack for(y=0; yspatial_dwt_buffer[y*w + x] - pict->data[plane_index][y*pict->linesize[plane_index] + x]*256; error += d*d; } } error= (error + 128*256)>>16; s->avctx->error[plane_index] += error; s->avctx->error[3] += error; } } if(s->last_picture.data[0]) avctx->release_buffer(avctx, &s->last_picture); emms_c(); return put_cabac_terminate(c, 1); } static void common_end(SnowContext *s){ av_freep(&s->spatial_dwt_buffer); av_freep(&s->mb_band.buf); av_freep(&s->mv_band[0].buf); av_freep(&s->mv_band[1].buf); av_freep(&s->m.me.scratchpad); av_freep(&s->m.me.map); av_freep(&s->m.me.score_map); av_freep(&s->mb_type); av_freep(&s->mb_mean); av_freep(&s->dummy); av_freep(&s->motion_val8); av_freep(&s->motion_val16); } static int encode_end(AVCodecContext *avctx) { SnowContext *s = avctx->priv_data; common_end(s); return 0; } static int decode_init(AVCodecContext *avctx) { // SnowContext *s = avctx->priv_data; common_init(avctx); return 0; } static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size){ SnowContext *s = avctx->priv_data; CABACContext * const c= &s->c; const int width= s->avctx->width; const int height= s->avctx->height; int bytes_read; AVFrame *picture = data; int log2_threshold, level, orientation, plane_index; /* no supplementary picture */ if (buf_size == 0) return 0; ff_init_cabac_decoder(c, buf, buf_size); ff_init_cabac_states(c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64); memset(s->header_state, 0, sizeof(s->header_state)); s->current_picture.pict_type= FF_I_TYPE; //FIXME I vs. P decode_header(s); frame_start(s); //keyframe flag dupliaction mess FIXME if(avctx->debug&FF_DEBUG_PICT_INFO) av_log(avctx, AV_LOG_ERROR, "keyframe:%d qlog:%d\n", s->keyframe, s->qlog); decode_subband(s, &s->mb_band , s->mb_band .buf, NULL, s->mb_band .stride, 0); decode_subband(s, &s->mv_band[0], s->mv_band[0].buf, NULL, s->mv_band[0].stride, 0); decode_subband(s, &s->mv_band[1], s->mv_band[1].buf, NULL, s->mv_band[1].stride, 0); correlate(s, &s->mb_band , s->mb_band .buf, s->mb_band .stride, 1, 1); correlate(s, &s->mv_band[0], s->mv_band[0].buf, s->mv_band[0].stride, 1, 1); correlate(s, &s->mv_band[1], s->mv_band[1].buf, s->mv_band[1].stride, 1, 1); for(plane_index=0; plane_index<3; plane_index++){ Plane *p= &s->plane[plane_index]; int w= p->width; int h= p->height; int x, y; if(s->avctx->debug&2048){ memset(s->spatial_dwt_buffer, 0, sizeof(DWTELEM)*w*h); predict_plane(s, s->spatial_dwt_buffer, plane_index, 1); for(y=0; yspatial_dwt_buffer[y*w + x]+128)>>8; if(v&(~255)) v= ~(v>>31); s->mconly_picture.data[plane_index][y*s->mconly_picture.linesize[plane_index] + x]= v; } } } for(level=0; levelspatial_decomposition_count; level++){ for(orientation=level ? 1 : 0; orientation<4; orientation++){ SubBand *b= &p->band[level][orientation]; decode_subband(s, b, b->buf, b->parent ? b->parent->buf : NULL, b->stride, orientation); if(orientation==0) correlate(s, b, b->buf, b->stride, 1, 0); } } if(!(s->avctx->debug&1024)) for(level=0; levelspatial_decomposition_count; level++){ for(orientation=level ? 1 : 0; orientation<4; orientation++){ SubBand *b= &p->band[level][orientation]; dequantize(s, b, b->buf, b->stride); } } #if QPRED memset(s->pred_buffer, 0, sizeof(DWTELEM)*w*h); predict_plane(s, s->pred_buffer, plane_index, 1); spatial_dwt(s, s->pred_buffer, w, h, w); for(level=0; levelspatial_decomposition_count; level++){ for(orientation=level ? 1 : 0; orientation<4; orientation++){ SubBand *b= &p->band[level][orientation]; int delta= ((int)s->pred_buffer - (int)s->spatial_dwt_buffer)/sizeof(DWTELEM); quantize (s, b, b->buf + delta, b->stride, s->qbias); dequantize(s, b, b->buf + delta, b->stride); } } for(y=0; yspatial_dwt_buffer[y*w + x]+= s->pred_buffer[y*w + x]; } } spatial_idwt(s, s->spatial_dwt_buffer, w, h, w); #else spatial_idwt(s, s->spatial_dwt_buffer, w, h, w); predict_plane(s, s->spatial_dwt_buffer, plane_index, 1); #endif //FIXME optimize for(y=0; yspatial_dwt_buffer[y*w + x]+128)>>8; if(v&(~255)) v= ~(v>>31); s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]= v; } } } emms_c(); if(s->last_picture.data[0]) avctx->release_buffer(avctx, &s->last_picture); if(!(s->avctx->debug&2048)) *picture= s->current_picture; else *picture= s->mconly_picture; *data_size = sizeof(AVFrame); bytes_read= get_cabac_terminate(c); if(bytes_read ==0) av_log(s->avctx, AV_LOG_ERROR, "error at end of frame\n"); return bytes_read; } static int decode_end(AVCodecContext *avctx) { SnowContext *s = avctx->priv_data; common_end(s); return 0; } AVCodec snow_decoder = { "snow", CODEC_TYPE_VIDEO, CODEC_ID_SNOW, sizeof(SnowContext), decode_init, NULL, decode_end, decode_frame, 0 /*CODEC_CAP_DR1*/ /*| CODEC_CAP_DRAW_HORIZ_BAND*/, NULL }; AVCodec snow_encoder = { "snow", CODEC_TYPE_VIDEO, CODEC_ID_SNOW, sizeof(SnowContext), encode_init, encode_frame, encode_end, }; #if 0 #undef malloc #undef free #undef printf int main(){ int width=256; int height=256; int buffer[2][width*height]; SnowContext s; int i; s.spatial_decomposition_count=6; s.spatial_decomposition_type=1; printf("testing 5/3 DWT\n"); for(i=0; i> (s.spatial_decomposition_count-level); int h= height >> (s.spatial_decomposition_count-level); int stride= width << (s.spatial_decomposition_count-level); DWTELEM *buf= buffer[0]; int64_t error=0; if(orientation&1) buf+=w; if(orientation>1) buf+=stride>>1; memset(buffer[0], 0, sizeof(int)*width*height); buf[w/2 + h/2*stride]= 256*256; spatial_idwt(&s, buffer[0], width, height, width); for(y=0; y> (s.spatial_decomposition_count-level); int h= height >> (s.spatial_decomposition_count-level); int stride= width << (s.spatial_decomposition_count-level); DWTELEM *buf= buffer[0]; int64_t error=0; buf+=w; buf+=stride>>1; memset(buffer[0], 0, sizeof(int)*width*height); #if 1 for(y=0; y