2 * copyright (c) 2006 Oded Shimon <ods15@ods15.dyndns.org>
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef AVCODEC_VORBIS_H
22 #define AVCODEC_VORBIS_H
26 typedef struct vorbis_floor1_entry {
31 } vorbis_floor1_entry;
33 int ff_vorbis_ready_floor1_list(void *logctx,
34 vorbis_floor1_entry *list, int values);
35 unsigned int ff_vorbis_nth_root(unsigned int x, unsigned int n); // x^(1/n)
36 int ff_vorbis_len2vlc(uint8_t *bits, uint32_t *codes, unsigned num);
37 void ff_vorbis_floor1_render_list(vorbis_floor1_entry * list, int values,
38 uint16_t *y_list, int *flag,
39 int multiplier, float * out, int samples);
41 #define ilog(i) av_log2(2*(i))
43 #endif /* AVCODEC_VORBIS_H */