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>
6 * This file is part of FFmpeg.
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.
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.
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.
23 #ifndef AVFILTER_FSPP_H
24 #define AVFILTER_FSPP_H
34 #define FIX(x,s) ((x) * (1 << s) + 0.5)
36 #define MULTIPLY16H(x,k) (((x) * (k)) >> 16)
37 #define THRESHOLD(r,x,t) \
38 if(((unsigned)((x) + t)) > t * 2) r = (x); \
40 #define DESCALE(x,n) (((x) + (1 << ((n) - 1))) >> n)
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);
53 typedef struct FSPPContext {
55 uint64_t threshold_mtx_noq[8 * 2];
56 uint64_t threshold_mtx[8 * 2]; //used in both C & MMX (& later SSE2) versions
68 int8_t *non_b_qp_table;
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);
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);
80 void (*mul_thrmat)(int16_t *thr_adr_noq, int16_t *thr_adr, int q);
82 void (*column_fidct)(int16_t *thr_adr, int16_t *data,
83 int16_t *output, int cnt);
85 void (*row_idct)(int16_t *workspace, int16_t *output_adr,
86 ptrdiff_t output_stride, int cnt);
88 void (*row_fdct)(int16_t *data, const uint8_t *pixels,
89 ptrdiff_t line_size, int cnt);
93 void ff_fspp_init_x86(FSPPContext *fspp);
95 #endif /* AVFILTER_FSPP_H */