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41 lines
1.5 KiB
41 lines
1.5 KiB
/* |
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* copyright (c) 2006 Oded Shimon <ods15@ods15.dyndns.org> |
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* |
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* This library 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 of the License, or (at your option) any later version. |
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* |
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* This library 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 this library; 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 VORBIS_H |
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#define VORBIS_H |
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#include "avcodec.h" |
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extern const float ff_vorbis_floor1_inverse_db_table[256]; |
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extern const float * ff_vorbis_vwin[8]; |
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typedef struct { |
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uint_fast16_t x; |
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uint_fast16_t sort; |
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uint_fast16_t low; |
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uint_fast16_t high; |
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} floor1_entry_t; |
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void ff_vorbis_ready_floor1_list(floor1_entry_t * list, int values); |
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unsigned int ff_vorbis_nth_root(unsigned int x, unsigned int n); // x^(1/n) |
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int ff_vorbis_len2vlc(uint8_t *bits, uint32_t *codes, uint_fast32_t num); |
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void ff_vorbis_floor1_render_list(floor1_entry_t * list, int values, uint_fast16_t * y_list, int * flag, int multiplier, float * out, int samples); |
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#define ilog(i) av_log2(2*(i)) |
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#endif
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