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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * VP9 compatible video decoder |
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| 3 | * |
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| 4 | * Copyright (C) 2013 Ronald S. Bultje |
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| 5 | * Copyright (C) 2013 Clément Bœsch |
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| 6 | * |
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| 7 | * This file is part of FFmpeg. |
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| 8 | * |
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| 9 | * FFmpeg is free software; you can redistribute it and/or |
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| 10 | * modify it under the terms of the GNU Lesser General Public |
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| 11 | * License as published by the Free Software Foundation; either |
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| 12 | * version 2.1 of the License, or (at your option) any later version. |
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| 13 | * |
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| 14 | * FFmpeg is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 17 | * Lesser General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU Lesser General Public |
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| 20 | * License along with FFmpeg; if not, write to the Free Software |
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| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 22 | */ |
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| 23 | |||
| 24 | #ifndef AVCODEC_VP9DSP_H |
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| 25 | #define AVCODEC_VP9DSP_H |
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| 26 | |||
| 27 | #include |
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| 28 | #include |
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| 29 | |||
| 30 | #include "vp9.h" |
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| 31 | |||
| 32 | typedef void (*vp9_mc_func)(uint8_t *dst, ptrdiff_t dst_stride, |
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| 33 | const uint8_t *ref, ptrdiff_t ref_stride, |
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| 34 | int h, int mx, int my); |
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| 35 | |||
| 36 | typedef struct VP9DSPContext { |
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| 37 | /* |
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| 38 | * dimension 1: 0=4x4, 1=8x8, 2=16x16, 3=32x32 |
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| 39 | * dimension 2: intra prediction modes |
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| 40 | * |
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| 41 | * dst/left/top is aligned by transform-size (i.e. 4, 8, 16 or 32 pixels) |
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| 42 | * stride is aligned by 16 pixels |
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| 43 | * top[-1] is top/left; top[4,7] is top-right for 4x4 |
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| 44 | */ |
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| 45 | // FIXME(rbultje) maybe replace left/top pointers with HAVE_TOP/ |
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| 46 | // HAVE_LEFT/HAVE_TOPRIGHT flags instead, and then handle it in-place? |
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| 47 | // also needs to fit in with what h264/vp8/etc do |
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| 48 | void (*intra_pred[N_TXFM_SIZES][N_INTRA_PRED_MODES])(uint8_t *dst, |
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| 49 | ptrdiff_t stride, |
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| 50 | const uint8_t *left, |
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| 51 | const uint8_t *top); |
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| 52 | |||
| 53 | /* |
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| 54 | * dimension 1: 0=4x4, 1=8x8, 2=16x16, 3=32x32, 4=lossless (3-4=dct only) |
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| 55 | * dimension 2: 0=dct/dct, 1=dct/adst, 2=adst/dct, 3=adst/adst |
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| 56 | * |
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| 57 | * dst is aligned by transform-size (i.e. 4, 8, 16 or 32 pixels) |
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| 58 | * stride is aligned by 16 pixels |
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| 59 | * block is 16-byte aligned |
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| 60 | * eob indicates the position (+1) of the last non-zero coefficient, |
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| 61 | * in scan-order. This can be used to write faster versions, e.g. a |
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| 62 | * dc-only 4x4/8x8/16x16/32x32, or a 4x4-only (eob<10) 8x8/16x16/32x32, |
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| 63 | * etc. |
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| 64 | */ |
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| 65 | // FIXME also write idct_add_block() versions for whole (inter) pred |
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| 66 | // blocks, so we can do 2 4x4s at once |
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| 67 | void (*itxfm_add[N_TXFM_SIZES + 1][N_TXFM_TYPES])(uint8_t *dst, |
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| 68 | ptrdiff_t stride, |
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| 69 | int16_t *block, int eob); |
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| 70 | |||
| 71 | /* |
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| 72 | * dimension 1: width of filter (0=4, 1=8, 2=16) |
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| 73 | * dimension 2: 0=col-edge filter (h), 1=row-edge filter (v) |
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| 74 | * |
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| 75 | * dst/stride are aligned by 8 |
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| 76 | */ |
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| 77 | void (*loop_filter_8[3][2])(uint8_t *dst, ptrdiff_t stride, |
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| 78 | int mb_lim, int lim, int hev_thr); |
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| 79 | |||
| 80 | /* |
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| 81 | * dimension 1: 0=col-edge filter (h), 1=row-edge filter (v) |
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| 82 | * |
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| 83 | * The width of filter is assumed to be 16; dst/stride are aligned by 16 |
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| 84 | */ |
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| 85 | void (*loop_filter_16[2])(uint8_t *dst, ptrdiff_t stride, |
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| 86 | int mb_lim, int lim, int hev_thr); |
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| 87 | |||
| 88 | /* |
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| 89 | * dimension 1/2: width of filter (0=4, 1=8) for each filter half |
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| 90 | * dimension 3: 0=col-edge filter (h), 1=row-edge filter (v) |
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| 91 | * |
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| 92 | * dst/stride are aligned by operation size |
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| 93 | * this basically calls loop_filter[d1][d3][0](), followed by |
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| 94 | * loop_filter[d2][d3][0]() on the next 8 pixels |
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| 95 | * mb_lim/lim/hev_thr contain two values in the lowest two bytes of the |
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| 96 | * integer. |
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| 97 | */ |
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| 98 | // FIXME perhaps a mix4 that operates on 32px (for AVX2) |
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| 99 | void (*loop_filter_mix2[2][2][2])(uint8_t *dst, ptrdiff_t stride, |
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| 100 | int mb_lim, int lim, int hev_thr); |
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| 101 | |||
| 102 | /* |
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| 103 | * dimension 1: hsize (0: 64, 1: 32, 2: 16, 3: 8, 4: 4) |
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| 104 | * dimension 2: filter type (0: smooth, 1: regular, 2: sharp, 3: bilin) |
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| 105 | * dimension 3: averaging type (0: put, 1: avg) |
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| 106 | * dimension 4: x subpel interpolation (0: none, 1: 8tap/bilin) |
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| 107 | * dimension 5: y subpel interpolation (1: none, 1: 8tap/bilin) |
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| 108 | * |
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| 109 | * dst/stride are aligned by hsize |
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| 110 | */ |
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| 111 | vp9_mc_func mc[5][4][2][2][2]; |
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| 112 | } VP9DSPContext; |
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| 113 | |||
| 114 | void ff_vp9dsp_init(VP9DSPContext *dsp); |
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| 115 | |||
| 116 | void ff_vp9dsp_init_x86(VP9DSPContext *dsp); |
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| 117 | |||
| 118 | #endif /* AVCODEC_VP9DSP_H */ |