blob: 2423b0729303b8e335db6d283ea9485330f9b26f
| 1 | /* |
| 2 | * Copyright (C) 2016 Open Broadcast Systems Ltd. |
| 3 | * Author (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com> |
| 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 | #ifndef AVCODEC_DIRACTAB_H |
| 23 | #define AVCODEC_DIRACTAB_H |
| 24 | |
| 25 | #include <stdint.h> |
| 26 | |
| 27 | /* Tables here are shared between the Dirac/VC-2 decoder and the VC-2 encoder */ |
| 28 | |
| 29 | /* Default quantization tables for each wavelet transform */ |
| 30 | extern const uint8_t ff_dirac_default_qmat[7][4][4]; |
| 31 | |
| 32 | /* Scaling factors needed for quantization/dequantization */ |
| 33 | extern const int32_t ff_dirac_qscale_tab[116]; |
| 34 | |
| 35 | /* Scaling offsets needed for quantization/dequantization, for intra frames */ |
| 36 | extern const int32_t ff_dirac_qoffset_intra_tab[120]; |
| 37 | |
| 38 | /* Scaling offsets needed for quantization/dequantization, for inter frames */ |
| 39 | extern const int ff_dirac_qoffset_inter_tab[122]; |
| 40 | |
| 41 | #define DIRAC_MAX_QUANT_INDEX (FF_ARRAY_ELEMS(ff_dirac_qscale_tab)) |
| 42 | |
| 43 | #endif /* AVCODEC_DIRACTAB_H */ |
| 44 |