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