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65 lines
2.2 KiB
65 lines
2.2 KiB
/* |
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* DCA compatible decoder - huffman tables |
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* Copyright (C) 2004 Gildas Bazin |
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* Copyright (C) 2007 Konstantin Shishkov |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVCODEC_DCAHUFF_H |
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#define AVCODEC_DCAHUFF_H |
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#include "libavutil/common.h" |
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#include "avcodec.h" |
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#include "get_bits.h" |
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#include "put_bits.h" |
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#define DCA_CODE_BOOKS 10 |
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#define DCA_BITALLOC_12_COUNT 5 |
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typedef struct DCAVLC { |
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int offset; ///< Code values offset |
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int max_depth; ///< Parameter for get_vlc2() |
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VLC vlc[7]; ///< Actual codes |
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} DCAVLC; |
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extern DCAVLC ff_dca_vlc_bit_allocation; |
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extern DCAVLC ff_dca_vlc_transition_mode; |
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extern DCAVLC ff_dca_vlc_scale_factor; |
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extern DCAVLC ff_dca_vlc_quant_index[DCA_CODE_BOOKS]; |
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extern VLC ff_dca_vlc_tnl_grp[5]; |
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extern VLC ff_dca_vlc_tnl_scf; |
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extern VLC ff_dca_vlc_damp; |
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extern VLC ff_dca_vlc_dph; |
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extern VLC ff_dca_vlc_fst_rsd_amp; |
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extern VLC ff_dca_vlc_rsd_apprx; |
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extern VLC ff_dca_vlc_rsd_amp; |
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extern VLC ff_dca_vlc_avg_g3; |
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extern VLC ff_dca_vlc_st_grid; |
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extern VLC ff_dca_vlc_grid_2; |
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extern VLC ff_dca_vlc_grid_3; |
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extern VLC ff_dca_vlc_rsd; |
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av_cold void ff_dca_init_vlcs(void); |
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uint32_t ff_dca_vlc_calc_quant_bits(int *values, uint8_t n, uint8_t sel, uint8_t abits); |
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void ff_dca_vlc_enc_quant(PutBitContext *pb, int *values, uint8_t n, uint8_t sel, uint8_t abits); |
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uint32_t ff_dca_vlc_calc_alloc_bits(int *values, uint8_t n, uint8_t sel); |
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void ff_dca_vlc_enc_alloc(PutBitContext *pb, int *values, uint8_t n, uint8_t sel); |
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#endif /* AVCODEC_DCAHUFF_H */
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