1cabdff1aSopenharmony_ci/*
2cabdff1aSopenharmony_ci * DCA compatible decoder - huffman tables
3cabdff1aSopenharmony_ci * Copyright (C) 2004 Gildas Bazin
4cabdff1aSopenharmony_ci * Copyright (C) 2007 Konstantin Shishkov
5cabdff1aSopenharmony_ci *
6cabdff1aSopenharmony_ci * This file is part of FFmpeg.
7cabdff1aSopenharmony_ci *
8cabdff1aSopenharmony_ci * FFmpeg is free software; you can redistribute it and/or
9cabdff1aSopenharmony_ci * modify it under the terms of the GNU Lesser General Public
10cabdff1aSopenharmony_ci * License as published by the Free Software Foundation; either
11cabdff1aSopenharmony_ci * version 2.1 of the License, or (at your option) any later version.
12cabdff1aSopenharmony_ci *
13cabdff1aSopenharmony_ci * FFmpeg is distributed in the hope that it will be useful,
14cabdff1aSopenharmony_ci * but WITHOUT ANY WARRANTY; without even the implied warranty of
15cabdff1aSopenharmony_ci * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16cabdff1aSopenharmony_ci * Lesser General Public License for more details.
17cabdff1aSopenharmony_ci *
18cabdff1aSopenharmony_ci * You should have received a copy of the GNU Lesser General Public
19cabdff1aSopenharmony_ci * License along with FFmpeg; if not, write to the Free Software
20cabdff1aSopenharmony_ci * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21cabdff1aSopenharmony_ci */
22cabdff1aSopenharmony_ci
23cabdff1aSopenharmony_ci#ifndef AVCODEC_DCAHUFF_H
24cabdff1aSopenharmony_ci#define AVCODEC_DCAHUFF_H
25cabdff1aSopenharmony_ci
26cabdff1aSopenharmony_ci#include <stdint.h>
27cabdff1aSopenharmony_ci
28cabdff1aSopenharmony_ci#include "libavutil/attributes.h"
29cabdff1aSopenharmony_ci
30cabdff1aSopenharmony_ci#include "put_bits.h"
31cabdff1aSopenharmony_ci#include "vlc.h"
32cabdff1aSopenharmony_ci
33cabdff1aSopenharmony_ci#define DCA_CODE_BOOKS      10
34cabdff1aSopenharmony_ci#define DCA_BITALLOC_12_COUNT    5
35cabdff1aSopenharmony_ci
36cabdff1aSopenharmony_citypedef struct DCAVLC {
37cabdff1aSopenharmony_ci    int offset;         ///< Code values offset
38cabdff1aSopenharmony_ci    int max_depth;      ///< Parameter for get_vlc2()
39cabdff1aSopenharmony_ci    VLC vlc[7];         ///< Actual codes
40cabdff1aSopenharmony_ci} DCAVLC;
41cabdff1aSopenharmony_ci
42cabdff1aSopenharmony_ciextern DCAVLC   ff_dca_vlc_bit_allocation;
43cabdff1aSopenharmony_ciextern DCAVLC   ff_dca_vlc_transition_mode;
44cabdff1aSopenharmony_ciextern DCAVLC   ff_dca_vlc_scale_factor;
45cabdff1aSopenharmony_ciextern DCAVLC   ff_dca_vlc_quant_index[DCA_CODE_BOOKS];
46cabdff1aSopenharmony_ci
47cabdff1aSopenharmony_ciextern VLC  ff_dca_vlc_tnl_grp[5];
48cabdff1aSopenharmony_ciextern VLC  ff_dca_vlc_tnl_scf;
49cabdff1aSopenharmony_ciextern VLC  ff_dca_vlc_damp;
50cabdff1aSopenharmony_ciextern VLC  ff_dca_vlc_dph;
51cabdff1aSopenharmony_ciextern VLC  ff_dca_vlc_fst_rsd_amp;
52cabdff1aSopenharmony_ciextern VLC  ff_dca_vlc_rsd_apprx;
53cabdff1aSopenharmony_ciextern VLC  ff_dca_vlc_rsd_amp;
54cabdff1aSopenharmony_ciextern VLC  ff_dca_vlc_avg_g3;
55cabdff1aSopenharmony_ciextern VLC  ff_dca_vlc_st_grid;
56cabdff1aSopenharmony_ciextern VLC  ff_dca_vlc_grid_2;
57cabdff1aSopenharmony_ciextern VLC  ff_dca_vlc_grid_3;
58cabdff1aSopenharmony_ciextern VLC  ff_dca_vlc_rsd;
59cabdff1aSopenharmony_ci
60cabdff1aSopenharmony_ciav_cold void ff_dca_init_vlcs(void);
61cabdff1aSopenharmony_ciuint32_t ff_dca_vlc_calc_quant_bits(int *values, uint8_t n, uint8_t sel, uint8_t abits);
62cabdff1aSopenharmony_civoid ff_dca_vlc_enc_quant(PutBitContext *pb, int *values, uint8_t n, uint8_t sel, uint8_t abits);
63cabdff1aSopenharmony_ciuint32_t ff_dca_vlc_calc_alloc_bits(int *values, uint8_t n, uint8_t sel);
64cabdff1aSopenharmony_civoid ff_dca_vlc_enc_alloc(PutBitContext *pb, int *values, uint8_t n, uint8_t sel);
65cabdff1aSopenharmony_ci
66cabdff1aSopenharmony_ci#endif /* AVCODEC_DCAHUFF_H */
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