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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 */ |