diff options
Diffstat (limited to 'lib/rbcodec/codecs/libopus/celt/pitch.h')
-rw-r--r-- | lib/rbcodec/codecs/libopus/celt/pitch.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libopus/celt/pitch.h b/lib/rbcodec/codecs/libopus/celt/pitch.h new file mode 100644 index 0000000000..2757071a6f --- /dev/null +++ b/lib/rbcodec/codecs/libopus/celt/pitch.h | |||
@@ -0,0 +1,48 @@ | |||
1 | /* Copyright (c) 2007-2008 CSIRO | ||
2 | Copyright (c) 2007-2009 Xiph.Org Foundation | ||
3 | Written by Jean-Marc Valin */ | ||
4 | /** | ||
5 | @file pitch.h | ||
6 | @brief Pitch analysis | ||
7 | */ | ||
8 | |||
9 | /* | ||
10 | Redistribution and use in source and binary forms, with or without | ||
11 | modification, are permitted provided that the following conditions | ||
12 | are met: | ||
13 | |||
14 | - Redistributions of source code must retain the above copyright | ||
15 | notice, this list of conditions and the following disclaimer. | ||
16 | |||
17 | - Redistributions in binary form must reproduce the above copyright | ||
18 | notice, this list of conditions and the following disclaimer in the | ||
19 | documentation and/or other materials provided with the distribution. | ||
20 | |||
21 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
22 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
23 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
24 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER | ||
25 | OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
26 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
27 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
28 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
29 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
30 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
31 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
32 | */ | ||
33 | |||
34 | #ifndef PITCH_H | ||
35 | #define PITCH_H | ||
36 | |||
37 | #include "modes.h" | ||
38 | |||
39 | void pitch_downsample(celt_sig * OPUS_RESTRICT x[], opus_val16 * OPUS_RESTRICT x_lp, | ||
40 | int len, int C); | ||
41 | |||
42 | void pitch_search(const opus_val16 * OPUS_RESTRICT x_lp, opus_val16 * OPUS_RESTRICT y, | ||
43 | int len, int max_pitch, int *pitch); | ||
44 | |||
45 | opus_val16 remove_doubling(opus_val16 *x, int maxperiod, int minperiod, | ||
46 | int N, int *T0, int prev_period, opus_val16 prev_gain); | ||
47 | |||
48 | #endif | ||