FFmpeg
diractab.h
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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 */
uint8_t
const int32_t ff_dirac_qoffset_intra_tab[120]
Definition: diractab.c:53
const uint8_t ff_dirac_default_qmat[7][4][4]
Definition: diractab.c:24
int32_t
const int ff_dirac_qoffset_inter_tab[122]
Definition: diractab.c:72
const int32_t ff_dirac_qscale_tab[116]
Definition: diractab.c:34