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Diffstat (limited to 'lib/rbcodec/codecs/libopus/celt/mfrngcod.h')
-rw-r--r-- | lib/rbcodec/codecs/libopus/celt/mfrngcod.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libopus/celt/mfrngcod.h b/lib/rbcodec/codecs/libopus/celt/mfrngcod.h new file mode 100644 index 0000000000..809152a59a --- /dev/null +++ b/lib/rbcodec/codecs/libopus/celt/mfrngcod.h | |||
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1 | /* Copyright (c) 2001-2008 Timothy B. Terriberry | ||
2 | Copyright (c) 2008-2009 Xiph.Org Foundation */ | ||
3 | /* | ||
4 | Redistribution and use in source and binary forms, with or without | ||
5 | modification, are permitted provided that the following conditions | ||
6 | are met: | ||
7 | |||
8 | - Redistributions of source code must retain the above copyright | ||
9 | notice, this list of conditions and the following disclaimer. | ||
10 | |||
11 | - Redistributions in binary form must reproduce the above copyright | ||
12 | notice, this list of conditions and the following disclaimer in the | ||
13 | documentation and/or other materials provided with the distribution. | ||
14 | |||
15 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
16 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
17 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
18 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER | ||
19 | OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
20 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
21 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
22 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
23 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
24 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
25 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
26 | */ | ||
27 | |||
28 | #if !defined(_mfrngcode_H) | ||
29 | # define _mfrngcode_H (1) | ||
30 | # include "entcode.h" | ||
31 | |||
32 | /*Constants used by the entropy encoder/decoder.*/ | ||
33 | |||
34 | /*The number of bits to output at a time.*/ | ||
35 | # define EC_SYM_BITS (8) | ||
36 | /*The total number of bits in each of the state registers.*/ | ||
37 | # define EC_CODE_BITS (32) | ||
38 | /*The maximum symbol value.*/ | ||
39 | # define EC_SYM_MAX ((1U<<EC_SYM_BITS)-1) | ||
40 | /*Bits to shift by to move a symbol into the high-order position.*/ | ||
41 | # define EC_CODE_SHIFT (EC_CODE_BITS-EC_SYM_BITS-1) | ||
42 | /*Carry bit of the high-order range symbol.*/ | ||
43 | # define EC_CODE_TOP (((opus_uint32)1U)<<(EC_CODE_BITS-1)) | ||
44 | /*Low-order bit of the high-order range symbol.*/ | ||
45 | # define EC_CODE_BOT (EC_CODE_TOP>>EC_SYM_BITS) | ||
46 | /*The number of bits available for the last, partial symbol in the code field.*/ | ||
47 | # define EC_CODE_EXTRA ((EC_CODE_BITS-2)%EC_SYM_BITS+1) | ||
48 | #endif | ||