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1 | /* | ||
2 | * Apple ProRes compatible decoder | ||
3 | * | ||
4 | * Copyright (c) 2010-2011 Maxim Poliakovski | ||
5 | * | ||
6 | * This file is part of FFmpeg. | ||
7 | * | ||
8 | * FFmpeg is free software; you can redistribute it and/or | ||
9 | * modify it under the terms of the GNU Lesser General Public | ||
10 | * License as published by the Free Software Foundation; either | ||
11 | * version 2.1 of the License, or (at your option) any later version. | ||
12 | * | ||
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 GNU | ||
16 | * Lesser General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU Lesser General Public | ||
19 | * License along with FFmpeg; if not, write to the Free Software | ||
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
21 | */ | ||
22 | |||
23 | #include "config.h" | ||
24 | #include "libavutil/attributes.h" | ||
25 | #include "libavutil/common.h" | ||
26 | #include "idctdsp.h" | ||
27 | #include "proresdsp.h" | ||
28 | #include "simple_idct.h" | ||
29 | |||
30 | #define CLIP_MIN (1 << 2) ///< minimum value for clipping resulting pixels | ||
31 | #define CLIP_MAX_10 (1 << 10) - CLIP_MIN - 1 ///< maximum value for clipping resulting pixels | ||
32 | #define CLIP_MAX_12 (1 << 12) - CLIP_MIN - 1 ///< maximum value for clipping resulting pixels | ||
33 | |||
34 | #define CLIP_10(x) (av_clip((x), CLIP_MIN, CLIP_MAX_10)) | ||
35 | #define CLIP_12(x) (av_clip((x), CLIP_MIN, CLIP_MAX_12)) | ||
36 | |||
37 | /** | ||
38 | * Add bias value, clamp and output pixels of a slice | ||
39 | */ | ||
40 | |||
41 | 5126676 | static inline void put_pixel(uint16_t *dst, ptrdiff_t linesize, const int16_t *in, int bits_per_raw_sample) { | |
42 | int x, y, src_offset, dst_offset; | ||
43 | |||
44 |
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46140084 | for (y = 0, dst_offset = 0; y < 8; y++, dst_offset += linesize) { |
45 |
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369120672 | for (x = 0; x < 8; x++) { |
46 | 328107264 | src_offset = (y << 3) + x; | |
47 | |||
48 |
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328107264 | if (bits_per_raw_sample == 10) { |
49 | 171552768 | dst[dst_offset + x] = CLIP_10(in[src_offset]); | |
50 | } else {//12b | ||
51 | 156554496 | dst[dst_offset + x] = CLIP_12(in[src_offset]); | |
52 | } | ||
53 | } | ||
54 | } | ||
55 | 5126676 | } | |
56 | |||
57 | 2680512 | static void put_pixels_10(uint16_t *dst, ptrdiff_t linesize, const int16_t *in) | |
58 | { | ||
59 | 2680512 | put_pixel(dst, linesize, in, 10); | |
60 | 2680512 | } | |
61 | |||
62 | 2446164 | static void put_pixels_12(uint16_t *dst, ptrdiff_t linesize, const int16_t *in) | |
63 | { | ||
64 | 2446164 | put_pixel(dst, linesize, in, 12); | |
65 | 2446164 | } | |
66 | |||
67 | 2680512 | static void prores_idct_put_10_c(uint16_t *out, ptrdiff_t linesize, int16_t *block, const int16_t *qmat) | |
68 | { | ||
69 | 2680512 | ff_prores_idct_10(block, qmat); | |
70 | 2680512 | put_pixels_10(out, linesize >> 1, block); | |
71 | 2680512 | } | |
72 | |||
73 | 2446164 | static void prores_idct_put_12_c(uint16_t *out, ptrdiff_t linesize, int16_t *block, const int16_t *qmat) | |
74 | { | ||
75 | 2446164 | ff_prores_idct_12(block, qmat); | |
76 | 2446164 | put_pixels_12(out, linesize >> 1, block); | |
77 | 2446164 | } | |
78 | |||
79 | 73 | av_cold int ff_proresdsp_init(ProresDSPContext *dsp, int bits_per_raw_sample) | |
80 | { | ||
81 |
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73 | if (bits_per_raw_sample == 10) { |
82 | 49 | dsp->idct_put = prores_idct_put_10_c; | |
83 | 49 | dsp->idct_permutation_type = FF_IDCT_PERM_NONE; | |
84 |
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24 | } else if (bits_per_raw_sample == 12) { |
85 | 24 | dsp->idct_put = prores_idct_put_12_c; | |
86 | 24 | dsp->idct_permutation_type = FF_IDCT_PERM_NONE; | |
87 | } else { | ||
88 | ✗ | return AVERROR_BUG; | |
89 | } | ||
90 | |||
91 | #if ARCH_X86 | ||
92 | 73 | ff_proresdsp_init_x86(dsp, bits_per_raw_sample); | |
93 | #endif | ||
94 | |||
95 | 73 | ff_init_scantable_permutation(dsp->idct_permutation, | |
96 | 73 | dsp->idct_permutation_type); | |
97 | 73 | return 0; | |
98 | } | ||
99 |