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/*
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
* Copyright (C) 2005 Nikolaj Poroshin <porosh3@psu.ru>
* Copyright (c) 2014 Arwa Arif <arwaarif1994@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* FFmpeg 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef AVFILTER_FSPP_H
#define AVFILTER_FSPP_H
#include "avfilter.h"
#define BLOCKSZ 12
#define MAX_LEVEL 5
#define DCTSIZE 8
#define DCTSIZE_S "8"
#define FIX(x,s) ((int) ((x) * (1 << s) + 0.5) & 0xffff)
#define MULTIPLY16H(x,k) (((x) * (k)) >> 16)
#define THRESHOLD(r,x,t) \
if(((unsigned)((x) + t)) > t * 2) r = (x); \
else r = 0;
#define DESCALE(x,n) (((x) + (1 << ((n) - 1))) >> n)
typedef int32_t int_simd16_t;
static const int16_t FIX_0_382683433 = FIX(0.382683433, 14);
static const int16_t FIX_0_541196100 = FIX(0.541196100, 14);
static const int16_t FIX_0_707106781 = FIX(M_SQRT1_2 , 14);
static const int16_t FIX_1_306562965 = FIX(1.306562965, 14);
static const int16_t FIX_1_414213562_A = FIX(M_SQRT2 , 14);
static const int16_t FIX_1_847759065 = FIX(1.847759065, 13);
static const int16_t FIX_2_613125930 = FIX(-2.613125930, 13);
static const int16_t FIX_1_414213562 = FIX(M_SQRT2 , 13);
static const int16_t FIX_1_082392200 = FIX(1.082392200, 13);
typedef struct FSPPContext {
AVClass *class;
uint64_t threshold_mtx_noq[8 * 2];
uint64_t threshold_mtx[8 * 2]; //used in both C & MMX (& later SSE2) versions
int log2_count;
int strength;
int hsub;
int vsub;
int temp_stride;
int qp;
int qscale_type;
int prev_q;
uint8_t *src;
int16_t *temp;
uint8_t *non_b_qp_table;
int non_b_qp_alloc_size;
int use_bframe_qp;
void (*store_slice)(uint8_t *dst, int16_t *src,
ptrdiff_t dst_stride, ptrdiff_t src_stride,
ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale);
void (*store_slice2)(uint8_t *dst, int16_t *src,
ptrdiff_t dst_stride, ptrdiff_t src_stride,
ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale);
void (*mul_thrmat)(int16_t *thr_adr_noq, int16_t *thr_adr, int q);
void (*column_fidct)(int16_t *thr_adr, int16_t *data,
int16_t *output, int cnt);
void (*row_idct)(int16_t *workspace, int16_t *output_adr,
ptrdiff_t output_stride, int cnt);
void (*row_fdct)(int16_t *data, const uint8_t *pixels,
ptrdiff_t line_size, int cnt);
} FSPPContext;
void ff_fspp_init_x86(FSPPContext *fspp);
#endif /* AVFILTER_FSPP_H */
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