blob: cc08f8865ac0533d73092ecbfd4b6392c81bf4d1
| 1 | /* |
| 2 | * Copyright (C) 2004-2010 Michael Niedermayer <michaelni@gmx.at> |
| 3 | * Copyright (C) 2008 David Conrad |
| 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 | #include "libavutil/attributes.h" |
| 23 | #include "libavutil/avassert.h" |
| 24 | #include "libavutil/common.h" |
| 25 | #include "dirac_dwt.h" |
| 26 | |
| 27 | #define TEMPLATE_8bit |
| 28 | #include "dirac_dwt_template.c" |
| 29 | |
| 30 | #define TEMPLATE_10bit |
| 31 | #include "dirac_dwt_template.c" |
| 32 | |
| 33 | #define TEMPLATE_12bit |
| 34 | #include "dirac_dwt_template.c" |
| 35 | |
| 36 | int ff_spatial_idwt_init(DWTContext *d, DWTPlane *p, enum dwt_type type, |
| 37 | int decomposition_count, int bit_depth) |
| 38 | { |
| 39 | int ret = 0; |
| 40 | |
| 41 | d->buffer = p->buf; |
| 42 | d->width = p->width; |
| 43 | d->height = p->height; |
| 44 | d->stride = p->stride; |
| 45 | d->temp = p->tmp; |
| 46 | d->decomposition_count = decomposition_count; |
| 47 | |
| 48 | if (bit_depth == 8) |
| 49 | ret = ff_spatial_idwt_init_8bit(d, type); |
| 50 | else if (bit_depth == 10) |
| 51 | ret = ff_spatial_idwt_init_10bit(d, type); |
| 52 | else if (bit_depth == 12) |
| 53 | ret = ff_spatial_idwt_init_12bit(d, type); |
| 54 | else |
| 55 | av_log(NULL, AV_LOG_WARNING, "Unsupported bit depth = %i\n", bit_depth); |
| 56 | |
| 57 | if (ret) { |
| 58 | av_log(NULL, AV_LOG_ERROR, "Unknown wavelet type %d\n", type); |
| 59 | return AVERROR_INVALIDDATA; |
| 60 | } |
| 61 | |
| 62 | if (ARCH_X86 && bit_depth == 8) |
| 63 | ff_spatial_idwt_init_x86(d, type); |
| 64 | return 0; |
| 65 | } |
| 66 | |
| 67 | void ff_spatial_idwt_slice2(DWTContext *d, int y) |
| 68 | { |
| 69 | int level, support = d->support; |
| 70 | |
| 71 | for (level = d->decomposition_count-1; level >= 0; level--) { |
| 72 | int wl = d->width >> level; |
| 73 | int hl = d->height >> level; |
| 74 | int stride_l = d->stride << level; |
| 75 | |
| 76 | while (d->cs[level].y <= FFMIN((y>>level)+support, hl)) |
| 77 | d->spatial_compose(d, level, wl, hl, stride_l); |
| 78 | } |
| 79 | } |
| 80 |