| 1 | /* |
| 2 | * VC-1 and WMV3 decoder - DSP functions |
| 3 | * Copyright (c) 2006 Konstantin Shishkov |
| 4 | * |
| 5 | * This file is part of FFmpeg. |
| 6 | * |
| 7 | * FFmpeg is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2.1 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * FFmpeg is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with FFmpeg; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | /** |
| 23 | * @file |
| 24 | * VC-1 and WMV3 decoder |
| 25 | * |
| 26 | */ |
| 27 | |
| 28 | #ifndef AVCODEC_VC1DSP_H |
| 29 | #define AVCODEC_VC1DSP_H |
| 30 | |
| 31 | #include "hpeldsp.h" |
| 32 | #include "h264chroma.h" |
| 33 | |
| 34 | typedef void (*vc1op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, ptrdiff_t line_size, int h); |
| 35 | |
| 36 | typedef struct VC1DSPContext { |
| 37 | /* vc1 functions */ |
| 38 | void (*vc1_inv_trans_8x8)(int16_t *b); |
| 39 | void (*vc1_inv_trans_8x4)(uint8_t *dest, int line_size, int16_t *block); |
| 40 | void (*vc1_inv_trans_4x8)(uint8_t *dest, int line_size, int16_t *block); |
| 41 | void (*vc1_inv_trans_4x4)(uint8_t *dest, int line_size, int16_t *block); |
| 42 | void (*vc1_inv_trans_8x8_dc)(uint8_t *dest, int line_size, int16_t *block); |
| 43 | void (*vc1_inv_trans_8x4_dc)(uint8_t *dest, int line_size, int16_t *block); |
| 44 | void (*vc1_inv_trans_4x8_dc)(uint8_t *dest, int line_size, int16_t *block); |
| 45 | void (*vc1_inv_trans_4x4_dc)(uint8_t *dest, int line_size, int16_t *block); |
| 46 | void (*vc1_v_overlap)(uint8_t *src, int stride); |
| 47 | void (*vc1_h_overlap)(uint8_t *src, int stride); |
| 48 | void (*vc1_v_s_overlap)(int16_t *top, int16_t *bottom); |
| 49 | void (*vc1_h_s_overlap)(int16_t *left, int16_t *right); |
| 50 | void (*vc1_v_loop_filter4)(uint8_t *src, int stride, int pq); |
| 51 | void (*vc1_h_loop_filter4)(uint8_t *src, int stride, int pq); |
| 52 | void (*vc1_v_loop_filter8)(uint8_t *src, int stride, int pq); |
| 53 | void (*vc1_h_loop_filter8)(uint8_t *src, int stride, int pq); |
| 54 | void (*vc1_v_loop_filter16)(uint8_t *src, int stride, int pq); |
| 55 | void (*vc1_h_loop_filter16)(uint8_t *src, int stride, int pq); |
| 56 | |
| 57 | /* put 8x8 block with bicubic interpolation and quarterpel precision |
| 58 | * last argument is actually round value instead of height |
| 59 | */ |
| 60 | vc1op_pixels_func put_vc1_mspel_pixels_tab[2][16]; |
| 61 | vc1op_pixels_func avg_vc1_mspel_pixels_tab[2][16]; |
| 62 | |
| 63 | /* This is really one func used in VC-1 decoding */ |
| 64 | h264_chroma_mc_func put_no_rnd_vc1_chroma_pixels_tab[3]; |
| 65 | h264_chroma_mc_func avg_no_rnd_vc1_chroma_pixels_tab[3]; |
| 66 | |
| 67 | /* Windows Media Image functions */ |
| 68 | void (*sprite_h)(uint8_t *dst, const uint8_t *src, int offset, int advance, int count); |
| 69 | void (*sprite_v_single)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset, int width); |
| 70 | void (*sprite_v_double_noscale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src2a, int alpha, int width); |
| 71 | void (*sprite_v_double_onescale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1, |
| 72 | const uint8_t *src2a, int alpha, int width); |
| 73 | void (*sprite_v_double_twoscale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1, |
| 74 | const uint8_t *src2a, const uint8_t *src2b, int offset2, |
| 75 | int alpha, int width); |
| 76 | |
| 77 | /** |
| 78 | * Search buf from the start for up to size bytes. Return the index |
| 79 | * of a zero byte, or >= size if not found. Ideally, use lookahead |
| 80 | * to filter out any zero bytes that are known to not be followed by |
| 81 | * one or more further zero bytes and a one byte. |
| 82 | */ |
| 83 | int (*startcode_find_candidate)(const uint8_t *buf, int size); |
| 84 | } VC1DSPContext; |
| 85 | |
| 86 | void ff_vc1dsp_init(VC1DSPContext* c); |
| 87 | void ff_vc1dsp_init_aarch64(VC1DSPContext* dsp); |
| 88 | void ff_vc1dsp_init_arm(VC1DSPContext* dsp); |
| 89 | void ff_vc1dsp_init_ppc(VC1DSPContext *c); |
| 90 | void ff_vc1dsp_init_x86(VC1DSPContext* dsp); |
| 91 | |
| 92 | #endif /* AVCODEC_VC1DSP_H */ |