| Line | Branch | Exec | Source |
|---|---|---|---|
| 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/avassert.h" | ||
| 26 | #include "libavutil/common.h" | ||
| 27 | #include "libavutil/intreadwrite.h" | ||
| 28 | #include "idctdsp.h" | ||
| 29 | #include "proresdsp.h" | ||
| 30 | |||
| 31 | #define IN_IDCT_DEPTH 16 | ||
| 32 | #define PRORES_ONLY | ||
| 33 | |||
| 34 | #define BIT_DEPTH 10 | ||
| 35 | #define EXTRA_SHIFT | ||
| 36 | #include "simple_idct_template.c" | ||
| 37 | #undef BIT_DEPTH | ||
| 38 | #undef EXTRA_SHIFT | ||
| 39 | |||
| 40 | #define BIT_DEPTH 12 | ||
| 41 | #include "simple_idct_template.c" | ||
| 42 | #undef BIT_DEPTH | ||
| 43 | |||
| 44 | /** | ||
| 45 | * Special version of ff_simple_idct_int16_10bit() which does dequantization | ||
| 46 | * and scales by a factor of 2 more between the two IDCTs to account | ||
| 47 | * for larger scale of input coefficients. | ||
| 48 | */ | ||
| 49 | 2189760 | static void prores_idct_10(int16_t *restrict block, const int16_t *restrict qmat) | |
| 50 | { | ||
| 51 |
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142334400 | for (int i = 0; i < 64; i++) |
| 52 | 140144640 | block[i] *= qmat[i]; | |
| 53 | |||
| 54 |
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19707840 | for (int i = 0; i < 8; i++) |
| 55 | 17518080 | idctRowCondDC_extrashift_10(block + i*8, 2); | |
| 56 | |||
| 57 |
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19707840 | for (int i = 0; i < 8; i++) { |
| 58 | 17518080 | block[i] += 8192; | |
| 59 | 17518080 | idctSparseCol_extrashift_10(block + i); | |
| 60 | } | ||
| 61 | 2189760 | } | |
| 62 | |||
| 63 | 2025720 | static void prores_idct_12(int16_t *restrict block, const int16_t *restrict qmat) | |
| 64 | { | ||
| 65 |
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131671800 | for (int i = 0; i < 64; i++) |
| 66 | 129646080 | block[i] *= qmat[i]; | |
| 67 | |||
| 68 |
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18231480 | for (int i = 0; i < 8; i++) |
| 69 | 16205760 | idctRowCondDC_int16_12bit(block + i*8, 0); | |
| 70 | |||
| 71 |
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18231480 | for (int i = 0; i < 8; i++) { |
| 72 | 16205760 | block[i] += 8192; | |
| 73 | 16205760 | idctSparseCol_int16_12bit(block + i); | |
| 74 | } | ||
| 75 | 2025720 | } | |
| 76 | |||
| 77 | #define CLIP_MIN (1 << 2) ///< minimum value for clipping resulting pixels | ||
| 78 | #define CLIP_MAX_10 (1 << 10) - CLIP_MIN - 1 ///< maximum value for clipping resulting pixels | ||
| 79 | #define CLIP_MAX_12 (1 << 12) - CLIP_MIN - 1 ///< maximum value for clipping resulting pixels | ||
| 80 | |||
| 81 | #define CLIP_10(x) (av_clip((x), CLIP_MIN, CLIP_MAX_10)) | ||
| 82 | #define CLIP_12(x) (av_clip((x), CLIP_MIN, CLIP_MAX_12)) | ||
| 83 | |||
| 84 | /** | ||
| 85 | * Add bias value, clamp and output pixels of a slice | ||
| 86 | */ | ||
| 87 | |||
| 88 | 4155480 | static inline void put_pixel(uint16_t *dst, ptrdiff_t linesize, const int16_t *in, int bits_per_raw_sample) { | |
| 89 |
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37399320 | for (int y = 0; y < 8; y++, dst += linesize) { |
| 90 |
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299194560 | for (int x = 0; x < 8; x++) { |
| 91 | 265950720 | int src_offset = (y << 3) + x; | |
| 92 | |||
| 93 |
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265950720 | if (bits_per_raw_sample == 10) { |
| 94 | 136304640 | dst[x] = CLIP_10(in[src_offset]); | |
| 95 | } else {//12b | ||
| 96 | 129646080 | dst[x] = CLIP_12(in[src_offset]); | |
| 97 | } | ||
| 98 | } | ||
| 99 | } | ||
| 100 | 4155480 | } | |
| 101 | |||
| 102 | ✗ | static inline void put_pixel_bayer_12(uint16_t *dst, ptrdiff_t linesize, | |
| 103 | const int16_t *in) | ||
| 104 | { | ||
| 105 | ✗ | for (int y = 0; y < 8; y++, dst += linesize) { | |
| 106 | ✗ | for (int x = 0; x < 8; x++) | |
| 107 | ✗ | dst[x*2] = CLIP_12(in[(y << 3) + x]) << 4; | |
| 108 | } | ||
| 109 | ✗ | } | |
| 110 | |||
| 111 | 2129760 | static void put_pixels_10(uint16_t *dst, ptrdiff_t linesize, const int16_t *in) | |
| 112 | { | ||
| 113 | 2129760 | put_pixel(dst, linesize, in, 10); | |
| 114 | 2129760 | } | |
| 115 | |||
| 116 | 2025720 | static void put_pixels_12(uint16_t *dst, ptrdiff_t linesize, const int16_t *in) | |
| 117 | { | ||
| 118 | 2025720 | put_pixel(dst, linesize, in, 12); | |
| 119 | 2025720 | } | |
| 120 | |||
| 121 | 2129760 | static void prores_idct_put_10_c(uint16_t *out, ptrdiff_t linesize, int16_t *block, const int16_t *qmat) | |
| 122 | { | ||
| 123 | 2129760 | prores_idct_10(block, qmat); | |
| 124 | 2129760 | put_pixels_10(out, linesize >> 1, block); | |
| 125 | 2129760 | } | |
| 126 | |||
| 127 | 2025720 | static void prores_idct_put_12_c(uint16_t *out, ptrdiff_t linesize, int16_t *block, const int16_t *qmat) | |
| 128 | { | ||
| 129 | 2025720 | prores_idct_12(block, qmat); | |
| 130 | 2025720 | put_pixels_12(out, linesize >> 1, block); | |
| 131 | 2025720 | } | |
| 132 | |||
| 133 | ✗ | static void prores_idct_put_bayer_12_c(uint16_t *out, ptrdiff_t linesize, | |
| 134 | int16_t *block, const int16_t *qmat) | ||
| 135 | { | ||
| 136 | ✗ | prores_idct_12(block, qmat); | |
| 137 | ✗ | put_pixel_bayer_12(out, linesize << 1, block); | |
| 138 | ✗ | } | |
| 139 | |||
| 140 | 76 | av_cold void ff_proresdsp_init(ProresDSPContext *dsp, int bits_per_raw_sample) | |
| 141 | { | ||
| 142 |
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76 | if (bits_per_raw_sample == 10) { |
| 143 | 52 | dsp->idct_put = prores_idct_put_10_c; | |
| 144 | 52 | dsp->idct_permutation_type = FF_IDCT_PERM_NONE; | |
| 145 | } else { | ||
| 146 | av_assert1(bits_per_raw_sample == 12); | ||
| 147 | 24 | dsp->idct_put = prores_idct_put_12_c; | |
| 148 | 24 | dsp->idct_put_bayer = prores_idct_put_bayer_12_c; | |
| 149 | 24 | dsp->idct_permutation_type = FF_IDCT_PERM_NONE; | |
| 150 | } | ||
| 151 | |||
| 152 | #if ARCH_X86 | ||
| 153 | 76 | ff_proresdsp_init_x86(dsp, bits_per_raw_sample); | |
| 154 | #endif | ||
| 155 | |||
| 156 | 76 | ff_init_scantable_permutation(dsp->idct_permutation, | |
| 157 | 76 | dsp->idct_permutation_type); | |
| 158 | 76 | } | |
| 159 |