1 /* 2 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> 3 * Copyright (C) 2005 Nikolaj Poroshin <porosh3@psu.ru> 4 * Copyright (c) 2014 Arwa Arif <arwaarif1994@gmail.com> 5 * 6 * This file is part of FFmpeg. 7 * 8 * FFmpeg is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * FFmpeg is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License along 19 * with FFmpeg; if not, write to the Free Software Foundation, Inc., 20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 21 */ 22 23 #ifndef AVFILTER_FSPP_H 24 #define AVFILTER_FSPP_H 25 26 #include "avfilter.h" 27 28 #define BLOCKSZ 12 29 #define MAX_LEVEL 5 30 31 #define DCTSIZE 8 32 #define DCTSIZE_S "8" 33 34 #define FIX(x,s) ((x) * (1 << s) + 0.5) 35 36 #define MULTIPLY16H(x,k) (((x) * (k)) >> 16) 37 #define THRESHOLD(r,x,t) \ 38 if(((unsigned)((x) + t)) > t * 2) r = (x); \ 39 else r = 0; 40 #define DESCALE(x,n) (((x) + (1 << ((n) - 1))) >> n) 41 42 typedef int32_t int_simd16_t; 43 static const int16_t FIX_0_382683433 = FIX(0.382683433, 14); 44 static const int16_t FIX_0_541196100 = FIX(0.541196100, 14); 45 static const int16_t FIX_0_707106781 = FIX(M_SQRT1_2 , 14); 46 static const int16_t FIX_1_306562965 = FIX(1.306562965, 14); 47 static const int16_t FIX_1_414213562_A = FIX(M_SQRT2 , 14); 48 static const int16_t FIX_1_847759065 = FIX(1.847759065, 13); 49 static const int16_t FIX_2_613125930 = FIX(-2.613125930, 13); 50 static const int16_t FIX_1_414213562 = FIX(M_SQRT2 , 13); 51 static const int16_t FIX_1_082392200 = FIX(1.082392200, 13); 52 53 typedef struct FSPPContext { 54 AVClass *class; 55 uint64_t threshold_mtx_noq[8 * 2]; 56 uint64_t threshold_mtx[8 * 2]; //used in both C & MMX (& later SSE2) versions 57 58 int log2_count; 59 int strength; 60 int hsub; 61 int vsub; 62 int temp_stride; 63 int qp; 64 int qscale_type; 65 int prev_q; 66 uint8_t *src; 67 int16_t *temp; 68 int8_t *non_b_qp_table; 69 int non_b_qp_stride; 70 int use_bframe_qp; 71 72 void (*store_slice)(uint8_t *dst, int16_t *src, 73 ptrdiff_t dst_stride, ptrdiff_t src_stride, 74 ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale); 75 76 void (*store_slice2)(uint8_t *dst, int16_t *src, 77 ptrdiff_t dst_stride, ptrdiff_t src_stride, 78 ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale); 79 80 void (*mul_thrmat)(int16_t *thr_adr_noq, int16_t *thr_adr, int q); 81 82 void (*column_fidct)(int16_t *thr_adr, int16_t *data, 83 int16_t *output, int cnt); 84 85 void (*row_idct)(int16_t *workspace, int16_t *output_adr, 86 ptrdiff_t output_stride, int cnt); 87 88 void (*row_fdct)(int16_t *data, const uint8_t *pixels, 89 ptrdiff_t line_size, int cnt); 90 91 } FSPPContext; 92 93 void ff_fspp_init_x86(FSPPContext *fspp); 94 95 #endif /* AVFILTER_FSPP_H */ 96