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Diffstat (limited to 'libavfilter/vf_fspp.h')
-rw-r--r-- | libavfilter/vf_fspp.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/libavfilter/vf_fspp.h b/libavfilter/vf_fspp.h new file mode 100644 index 0000000000..74a34473bb --- /dev/null +++ b/libavfilter/vf_fspp.h @@ -0,0 +1,97 @@ +/* + * 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 C64(x) ((uint64_t)((x) | (x) << 16)) <<32 | (uint64_t)(x) | (uint64_t)(x) << 16 +#define FIX64(x,s) C64(FIX(x,s)) + +#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 */ |