mirror of
https://github.com/UberGames/lilium-voyager.git
synced 2024-12-15 06:30:49 +00:00
75 lines
2.7 KiB
C
75 lines
2.7 KiB
C
/* Copyright (c) 2007-2008 CSIRO
|
|
Copyright (c) 2007-2009 Xiph.Org Foundation
|
|
Written by Jean-Marc Valin */
|
|
/**
|
|
@file vq.h
|
|
@brief Vector quantisation of the residual
|
|
*/
|
|
/*
|
|
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.
|
|
*/
|
|
|
|
#ifndef VQ_H
|
|
#define VQ_H
|
|
|
|
#include "entenc.h"
|
|
#include "entdec.h"
|
|
#include "modes.h"
|
|
|
|
#if defined(MIPSr1_ASM)
|
|
#include "mips/vq_mipsr1.h"
|
|
#endif
|
|
|
|
|
|
/** Algebraic pulse-vector quantiser. The signal x is replaced by the sum of
|
|
* the pitch and a combination of pulses such that its norm is still equal
|
|
* to 1. This is the function that will typically require the most CPU.
|
|
* @param X Residual signal to quantise/encode (returns quantised version)
|
|
* @param N Number of samples to encode
|
|
* @param K Number of pulses to use
|
|
* @param enc Entropy encoder state
|
|
* @ret A mask indicating which blocks in the band received pulses
|
|
*/
|
|
unsigned alg_quant(celt_norm *X, int N, int K, int spread, int B,
|
|
ec_enc *enc
|
|
#ifdef RESYNTH
|
|
, opus_val16 gain
|
|
#endif
|
|
);
|
|
|
|
/** Algebraic pulse decoder
|
|
* @param X Decoded normalised spectrum (returned)
|
|
* @param N Number of samples to decode
|
|
* @param K Number of pulses to use
|
|
* @param dec Entropy decoder state
|
|
* @ret A mask indicating which blocks in the band received pulses
|
|
*/
|
|
unsigned alg_unquant(celt_norm *X, int N, int K, int spread, int B,
|
|
ec_dec *dec, opus_val16 gain);
|
|
|
|
void renormalise_vector(celt_norm *X, int N, opus_val16 gain, int arch);
|
|
|
|
int stereo_itheta(const celt_norm *X, const celt_norm *Y, int stereo, int N, int arch);
|
|
|
|
#endif /* VQ_H */
|