198913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project/*---------------------------------------------------------------------------*\ 298913fed6520d8849fb2e246be943e04474aefaThe Android Open Source ProjectOriginal Copyright 398913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project FILE........: AK2LSPD.H 498913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project TYPE........: Turbo C header file 598913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project COMPANY.....: Voicetronix 698913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project AUTHOR......: James Whitehall 798913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project DATE CREATED: 21/11/95 898913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 998913fed6520d8849fb2e246be943e04474aefaThe Android Open Source ProjectModified by Jean-Marc Valin 1098913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 1198913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project This file contains functions for converting Linear Prediction 1298913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project Coefficients (LPC) to Line Spectral Pair (LSP) and back. Note that the 1398913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project LSP coefficients are not in radians format but in the x domain of the 1498913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project unit circle. 1598913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 1698913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project\*---------------------------------------------------------------------------*/ 1798913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project/** 1898913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project @file lsp.h 1998913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project @brief Line Spectral Pair (LSP) functions. 2098913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project*/ 2198913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project/* Speex License: 2298913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 2398913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project Redistribution and use in source and binary forms, with or without 2498913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project modification, are permitted provided that the following conditions 2598913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project are met: 2698913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 2798913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project - Redistributions of source code must retain the above copyright 2898913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project notice, this list of conditions and the following disclaimer. 2998913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 3098913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project - Redistributions in binary form must reproduce the above copyright 3198913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project notice, this list of conditions and the following disclaimer in the 3298913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project documentation and/or other materials provided with the distribution. 3398913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 3498913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project - Neither the name of the Xiph.org Foundation nor the names of its 3598913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project contributors may be used to endorse or promote products derived from 3698913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project this software without specific prior written permission. 3798913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 3898913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 3998913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 4098913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 4198913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR 4298913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 4398913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 4498913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 4598913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 4698913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 4798913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 4898913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 4998913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project*/ 5098913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 5198913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project#ifndef __AK2LSPD__ 5298913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project#define __AK2LSPD__ 5398913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 5498913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project#include "arch.h" 5598913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 5698913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Projectint lpc_to_lsp (spx_coef_t *a, int lpcrdr, spx_lsp_t *freq, int nb, spx_word16_t delta, char *stack); 5798913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Projectvoid lsp_to_lpc(spx_lsp_t *freq, spx_coef_t *ak, int lpcrdr, char *stack); 5898913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 5998913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project/*Added by JMV*/ 6098913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Projectvoid lsp_enforce_margin(spx_lsp_t *lsp, int len, spx_word16_t margin); 6198913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 6298913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Projectvoid lsp_interpolate(spx_lsp_t *old_lsp, spx_lsp_t *new_lsp, spx_lsp_t *interp_lsp, int len, int subframe, int nb_subframes); 6398913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project 6498913fed6520d8849fb2e246be943e04474aefaThe Android Open Source Project#endif /* __AK2LSPD__ */ 65