995dcb610c
Took the opportunity to undo the Godot changed made to the
opus source. The opus module should eventually be built in its
own environment to avoid polluting others with too many include
dirs and defines.
TODO: Fix the platform/ stuff for opus.
(cherry picked from commit d9a291f641)
speex module was only added while cherry-picking, as speex is removed
in the master branch but we don't want to break compatibility in 2.1.x.
Unbundling wasn't done as the module uses the internal speex_free,
so it would require some more work.
74 lines
2.8 KiB
C++
74 lines
2.8 KiB
C++
/* Copyright (C) 2002 Jean-Marc Valin */
|
|
/**
|
|
@file quant_lsp.h
|
|
@brief LSP vector quantization
|
|
*/
|
|
/*
|
|
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.
|
|
|
|
- Neither the name of the Xiph.org Foundation nor the names of its
|
|
contributors may be used to endorse or promote products derived from
|
|
this software without specific prior written permission.
|
|
|
|
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 FOUNDATION 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 QUANT_LSP_H
|
|
#define QUANT_LSP_H
|
|
|
|
#include <speex/speex_bits.h>
|
|
#include "arch.h"
|
|
|
|
#define MAX_LSP_SIZE 20
|
|
|
|
#define NB_CDBK_SIZE 64
|
|
#define NB_CDBK_SIZE_LOW1 64
|
|
#define NB_CDBK_SIZE_LOW2 64
|
|
#define NB_CDBK_SIZE_HIGH1 64
|
|
#define NB_CDBK_SIZE_HIGH2 64
|
|
|
|
/*Narrowband codebooks*/
|
|
extern const signed char cdbk_nb[];
|
|
extern const signed char cdbk_nb_low1[];
|
|
extern const signed char cdbk_nb_low2[];
|
|
extern const signed char cdbk_nb_high1[];
|
|
extern const signed char cdbk_nb_high2[];
|
|
|
|
/* Quantizes narrowband LSPs with 30 bits */
|
|
void lsp_quant_nb(spx_lsp_t *lsp, spx_lsp_t *qlsp, int order, SpeexBits *bits);
|
|
|
|
/* Decodes quantized narrowband LSPs */
|
|
void lsp_unquant_nb(spx_lsp_t *lsp, int order, SpeexBits *bits);
|
|
|
|
/* Quantizes low bit-rate narrowband LSPs with 18 bits */
|
|
void lsp_quant_lbr(spx_lsp_t *lsp, spx_lsp_t *qlsp, int order, SpeexBits *bits);
|
|
|
|
/* Decodes quantized low bit-rate narrowband LSPs */
|
|
void lsp_unquant_lbr(spx_lsp_t *lsp, int order, SpeexBits *bits);
|
|
|
|
/* Quantizes high-band LSPs with 12 bits */
|
|
void lsp_quant_high(spx_lsp_t *lsp, spx_lsp_t *qlsp, int order, SpeexBits *bits);
|
|
|
|
/* Decodes high-band LSPs */
|
|
void lsp_unquant_high(spx_lsp_t *lsp, int order, SpeexBits *bits);
|
|
|
|
#endif
|