blob: f6d73f73cd4d198d2eff84ab9a8f48aa55aefa54
| 1 | /* |
| 2 | * VP9 compatible video decoder |
| 3 | * |
| 4 | * Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com> |
| 5 | * Copyright (C) 2013 Clément Bœsch <u pkh me> |
| 6 | * |
| 7 | * This file is part of FFmpeg. |
| 8 | * |
| 9 | * FFmpeg is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU Lesser General Public |
| 11 | * License as published by the Free Software Foundation; either |
| 12 | * version 2.1 of the License, or (at your option) any later version. |
| 13 | * |
| 14 | * FFmpeg is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * Lesser General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU Lesser General Public |
| 20 | * License along with FFmpeg; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 22 | */ |
| 23 | |
| 24 | #include "libavutil/avassert.h" |
| 25 | #include "libavutil/common.h" |
| 26 | #include "vp9dsp.h" |
| 27 | |
| 28 | const DECLARE_ALIGNED(16, int16_t, ff_vp9_subpel_filters)[3][16][8] = { |
| 29 | [FILTER_8TAP_REGULAR] = { |
| 30 | { 0, 0, 0, 128, 0, 0, 0, 0 }, |
| 31 | { 0, 1, -5, 126, 8, -3, 1, 0 }, |
| 32 | { -1, 3, -10, 122, 18, -6, 2, 0 }, |
| 33 | { -1, 4, -13, 118, 27, -9, 3, -1 }, |
| 34 | { -1, 4, -16, 112, 37, -11, 4, -1 }, |
| 35 | { -1, 5, -18, 105, 48, -14, 4, -1 }, |
| 36 | { -1, 5, -19, 97, 58, -16, 5, -1 }, |
| 37 | { -1, 6, -19, 88, 68, -18, 5, -1 }, |
| 38 | { -1, 6, -19, 78, 78, -19, 6, -1 }, |
| 39 | { -1, 5, -18, 68, 88, -19, 6, -1 }, |
| 40 | { -1, 5, -16, 58, 97, -19, 5, -1 }, |
| 41 | { -1, 4, -14, 48, 105, -18, 5, -1 }, |
| 42 | { -1, 4, -11, 37, 112, -16, 4, -1 }, |
| 43 | { -1, 3, -9, 27, 118, -13, 4, -1 }, |
| 44 | { 0, 2, -6, 18, 122, -10, 3, -1 }, |
| 45 | { 0, 1, -3, 8, 126, -5, 1, 0 }, |
| 46 | }, [FILTER_8TAP_SHARP] = { |
| 47 | { 0, 0, 0, 128, 0, 0, 0, 0 }, |
| 48 | { -1, 3, -7, 127, 8, -3, 1, 0 }, |
| 49 | { -2, 5, -13, 125, 17, -6, 3, -1 }, |
| 50 | { -3, 7, -17, 121, 27, -10, 5, -2 }, |
| 51 | { -4, 9, -20, 115, 37, -13, 6, -2 }, |
| 52 | { -4, 10, -23, 108, 48, -16, 8, -3 }, |
| 53 | { -4, 10, -24, 100, 59, -19, 9, -3 }, |
| 54 | { -4, 11, -24, 90, 70, -21, 10, -4 }, |
| 55 | { -4, 11, -23, 80, 80, -23, 11, -4 }, |
| 56 | { -4, 10, -21, 70, 90, -24, 11, -4 }, |
| 57 | { -3, 9, -19, 59, 100, -24, 10, -4 }, |
| 58 | { -3, 8, -16, 48, 108, -23, 10, -4 }, |
| 59 | { -2, 6, -13, 37, 115, -20, 9, -4 }, |
| 60 | { -2, 5, -10, 27, 121, -17, 7, -3 }, |
| 61 | { -1, 3, -6, 17, 125, -13, 5, -2 }, |
| 62 | { 0, 1, -3, 8, 127, -7, 3, -1 }, |
| 63 | }, [FILTER_8TAP_SMOOTH] = { |
| 64 | { 0, 0, 0, 128, 0, 0, 0, 0 }, |
| 65 | { -3, -1, 32, 64, 38, 1, -3, 0 }, |
| 66 | { -2, -2, 29, 63, 41, 2, -3, 0 }, |
| 67 | { -2, -2, 26, 63, 43, 4, -4, 0 }, |
| 68 | { -2, -3, 24, 62, 46, 5, -4, 0 }, |
| 69 | { -2, -3, 21, 60, 49, 7, -4, 0 }, |
| 70 | { -1, -4, 18, 59, 51, 9, -4, 0 }, |
| 71 | { -1, -4, 16, 57, 53, 12, -4, -1 }, |
| 72 | { -1, -4, 14, 55, 55, 14, -4, -1 }, |
| 73 | { -1, -4, 12, 53, 57, 16, -4, -1 }, |
| 74 | { 0, -4, 9, 51, 59, 18, -4, -1 }, |
| 75 | { 0, -4, 7, 49, 60, 21, -3, -2 }, |
| 76 | { 0, -4, 5, 46, 62, 24, -3, -2 }, |
| 77 | { 0, -4, 4, 43, 63, 26, -2, -2 }, |
| 78 | { 0, -3, 2, 41, 63, 29, -2, -2 }, |
| 79 | { 0, -3, 1, 38, 64, 32, -1, -3 }, |
| 80 | } |
| 81 | }; |
| 82 | |
| 83 | |
| 84 | av_cold void ff_vp9dsp_init(VP9DSPContext *dsp, int bpp, int bitexact) |
| 85 | { |
| 86 | if (bpp == 8) { |
| 87 | ff_vp9dsp_init_8(dsp); |
| 88 | } else if (bpp == 10) { |
| 89 | ff_vp9dsp_init_10(dsp); |
| 90 | } else { |
| 91 | av_assert0(bpp == 12); |
| 92 | ff_vp9dsp_init_12(dsp); |
| 93 | } |
| 94 | |
| 95 | if (ARCH_AARCH64) ff_vp9dsp_init_aarch64(dsp, bpp); |
| 96 | if (ARCH_ARM) ff_vp9dsp_init_arm(dsp, bpp); |
| 97 | if (ARCH_X86) ff_vp9dsp_init_x86(dsp, bpp, bitexact); |
| 98 | if (ARCH_MIPS) ff_vp9dsp_init_mips(dsp, bpp); |
| 99 | } |
| 100 |