media/libopus/celt/laplace.h@b8a032363ba2 (annotated)
media/libopus/celt/laplace.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* Copyright (c) 2007 CSIRO |
| michael@0 | 2 | Copyright (c) 2007-2009 Xiph.Org Foundation |
| michael@0 | 3 | Written by Jean-Marc Valin */ |
| michael@0 | 4 | /* |
| michael@0 | 5 | Redistribution and use in source and binary forms, with or without |
| michael@0 | 6 | modification, are permitted provided that the following conditions |
| michael@0 | 7 | are met: |
| michael@0 | 8 | |
| michael@0 | 9 | - Redistributions of source code must retain the above copyright |
| michael@0 | 10 | notice, this list of conditions and the following disclaimer. |
| michael@0 | 11 | |
| michael@0 | 12 | - Redistributions in binary form must reproduce the above copyright |
| michael@0 | 13 | notice, this list of conditions and the following disclaimer in the |
| michael@0 | 14 | documentation and/or other materials provided with the distribution. |
| michael@0 | 15 | |
| michael@0 | 16 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| michael@0 | 17 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| michael@0 | 18 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| michael@0 | 19 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER |
| michael@0 | 20 | OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| michael@0 | 21 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| michael@0 | 22 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| michael@0 | 23 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| michael@0 | 24 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| michael@0 | 25 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| michael@0 | 26 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 27 | */ |
| michael@0 | 28 | |
| michael@0 | 29 | #include "entenc.h" |
| michael@0 | 30 | #include "entdec.h" |
| michael@0 | 31 | |
| michael@0 | 32 | /** Encode a value that is assumed to be the realisation of a |
| michael@0 | 33 | Laplace-distributed random process |
| michael@0 | 34 | @param enc Entropy encoder state |
| michael@0 | 35 | @param value Value to encode |
| michael@0 | 36 | @param fs Probability of 0, multiplied by 32768 |
| michael@0 | 37 | @param decay Probability of the value +/- 1, multiplied by 16384 |
| michael@0 | 38 | */ |
| michael@0 | 39 | void ec_laplace_encode(ec_enc *enc, int *value, unsigned fs, int decay); |
| michael@0 | 40 | |
| michael@0 | 41 | /** Decode a value that is assumed to be the realisation of a |
| michael@0 | 42 | Laplace-distributed random process |
| michael@0 | 43 | @param dec Entropy decoder state |
| michael@0 | 44 | @param fs Probability of 0, multiplied by 32768 |
| michael@0 | 45 | @param decay Probability of the value +/- 1, multiplied by 16384 |
| michael@0 | 46 | @return Value decoded |
| michael@0 | 47 | */ |
| michael@0 | 48 | int ec_laplace_decode(ec_dec *dec, unsigned fs, int decay); |
