2 * DCA compatible decoder - huffman tables
3 * Copyright (C) 2004 Gildas Bazin
4 * Copyright (C) 2007 Konstantin Shishkov
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #ifndef AVCODEC_DCAHUFF_H
24 #define AVCODEC_DCAHUFF_H
26 #include "libavutil/common.h"
31 #define DCA_CODE_BOOKS 10
33 typedef struct DCAVLC {
34 int offset; ///< Code values offset
35 int max_depth; ///< Parameter for get_vlc2()
36 VLC vlc[7]; ///< Actual codes
39 extern DCAVLC ff_dca_vlc_bit_allocation;
40 extern DCAVLC ff_dca_vlc_transition_mode;
41 extern DCAVLC ff_dca_vlc_scale_factor;
42 extern DCAVLC ff_dca_vlc_quant_index[DCA_CODE_BOOKS];
44 extern VLC ff_dca_vlc_tnl_grp[5];
45 extern VLC ff_dca_vlc_tnl_scf;
46 extern VLC ff_dca_vlc_damp;
47 extern VLC ff_dca_vlc_dph;
48 extern VLC ff_dca_vlc_fst_rsd_amp;
49 extern VLC ff_dca_vlc_rsd_apprx;
50 extern VLC ff_dca_vlc_rsd_amp;
51 extern VLC ff_dca_vlc_avg_g3;
52 extern VLC ff_dca_vlc_st_grid;
53 extern VLC ff_dca_vlc_grid_2;
54 extern VLC ff_dca_vlc_grid_3;
55 extern VLC ff_dca_vlc_rsd;
57 av_cold void ff_dca_init_vlcs(void);
59 #endif /* AVCODEC_DCAHUFF_H */