2 * Common code between Nellymoser encoder and decoder
3 * Copyright (c) 2007 a840bda5870ba11f19698ff6eb9581dfb0f95fa5,
4 * 539459aeb7d425140b62a3ec7dbf6dc8e408a306, and
5 * 520e17cd55896441042b14df2566a6eb610ed444
6 * Copyright (c) 2007 Loic Minier <lool at dooz.org>
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
24 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
25 * DEALINGS IN THE SOFTWARE.
30 * The 3 alphanumeric copyright notices are md5summed they are from the original
31 * implementors. The original code is available from http://code.google.com/p/nelly2pcm/
34 #ifndef AVCODEC_NELLYMOSER_H
35 #define AVCODEC_NELLYMOSER_H
39 #define NELLY_BANDS 23
40 #define NELLY_BLOCK_LEN 64
41 #define NELLY_HEADER_BITS 116
42 #define NELLY_DETAIL_BITS 198
43 #define NELLY_BUF_LEN 128
44 #define NELLY_FILL_LEN 124
45 #define NELLY_BIT_CAP 6
46 #define NELLY_BASE_OFF 4228
47 #define NELLY_BASE_SHIFT 19
48 #define NELLY_SAMPLES (2 * NELLY_BUF_LEN)
50 extern const float ff_nelly_dequantization_table[127];
51 extern const uint8_t ff_nelly_band_sizes_table[NELLY_BANDS];
52 extern const uint16_t ff_nelly_init_table[64];
53 extern const int16_t ff_nelly_delta_table[32];
55 void ff_nelly_get_sample_bits(const float *buf, int *bits);
57 #endif /* AVCODEC_NELLYMOSER_H */