diff options
Diffstat (limited to 'lib/rbcodec/codecs/libopus/celt/celt_lpc.h')
-rw-r--r-- | lib/rbcodec/codecs/libopus/celt/celt_lpc.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libopus/celt/celt_lpc.h b/lib/rbcodec/codecs/libopus/celt/celt_lpc.h new file mode 100644 index 0000000000..2baa77edf8 --- /dev/null +++ b/lib/rbcodec/codecs/libopus/celt/celt_lpc.h | |||
@@ -0,0 +1,53 @@ | |||
1 | /* Copyright (c) 2009-2010 Xiph.Org Foundation | ||
2 | Written by Jean-Marc Valin */ | ||
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 | #ifndef PLC_H | ||
29 | #define PLC_H | ||
30 | |||
31 | #include "arch.h" | ||
32 | |||
33 | #define LPC_ORDER 24 | ||
34 | |||
35 | void _celt_lpc(opus_val16 *_lpc, const opus_val32 *ac, int p); | ||
36 | |||
37 | void celt_fir(const opus_val16 *x, | ||
38 | const opus_val16 *num, | ||
39 | opus_val16 *y, | ||
40 | int N, | ||
41 | int ord, | ||
42 | opus_val16 *mem); | ||
43 | |||
44 | void celt_iir(const opus_val32 *x, | ||
45 | const opus_val16 *den, | ||
46 | opus_val32 *y, | ||
47 | int N, | ||
48 | int ord, | ||
49 | opus_val16 *mem); | ||
50 | |||
51 | void _celt_autocorr(const opus_val16 *x, opus_val32 *ac, const opus_val16 *window, int overlap, int lag, int n); | ||
52 | |||
53 | #endif /* PLC_H */ | ||