From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- media/libopus/celt/laplace.h | 48 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 media/libopus/celt/laplace.h (limited to 'media/libopus/celt/laplace.h') diff --git a/media/libopus/celt/laplace.h b/media/libopus/celt/laplace.h new file mode 100644 index 0000000000..46c14b5da5 --- /dev/null +++ b/media/libopus/celt/laplace.h @@ -0,0 +1,48 @@ +/* Copyright (c) 2007 CSIRO + Copyright (c) 2007-2009 Xiph.Org Foundation + Written by Jean-Marc Valin */ +/* + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + - Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + - Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER + OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "entenc.h" +#include "entdec.h" + +/** Encode a value that is assumed to be the realisation of a + Laplace-distributed random process + @param enc Entropy encoder state + @param value Value to encode + @param fs Probability of 0, multiplied by 32768 + @param decay Probability of the value +/- 1, multiplied by 16384 +*/ +void ec_laplace_encode(ec_enc *enc, int *value, unsigned fs, int decay); + +/** Decode a value that is assumed to be the realisation of a + Laplace-distributed random process + @param dec Entropy decoder state + @param fs Probability of 0, multiplied by 32768 + @param decay Probability of the value +/- 1, multiplied by 16384 + @return Value decoded + */ +int ec_laplace_decode(ec_dec *dec, unsigned fs, int decay); -- cgit v1.2.3