Commit | Line | Data |
---|---|---|
2ba45a60 DM |
1 | /* |
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> | |
7 | * Benjamin Larsson | |
8 | * | |
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: | |
15 | * | |
16 | * The above copyright notice and this permission notice shall be included in | |
17 | * all copies or substantial portions of the Software. | |
18 | * | |
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. | |
26 | */ | |
27 | ||
28 | /** | |
29 | * @file | |
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/ | |
32 | */ | |
33 | ||
34 | #ifndef AVCODEC_NELLYMOSER_H | |
35 | #define AVCODEC_NELLYMOSER_H | |
36 | ||
37 | #include "avcodec.h" | |
38 | ||
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) | |
49 | ||
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]; | |
54 | ||
55 | void ff_nelly_get_sample_bits(const float *buf, int *bits); | |
56 | ||
57 | #endif /* AVCODEC_NELLYMOSER_H */ |