Index: speex/libspeex/lsp.h |
=================================================================== |
--- speex/libspeex/lsp.h (revision 0) |
+++ speex/libspeex/lsp.h (revision 0) |
@@ -0,0 +1,64 @@ |
+/*---------------------------------------------------------------------------*\ |
+Original Copyright |
+ FILE........: AK2LSPD.H |
+ TYPE........: Turbo C header file |
+ COMPANY.....: Voicetronix |
+ AUTHOR......: James Whitehall |
+ DATE CREATED: 21/11/95 |
+ |
+Modified by Jean-Marc Valin |
+ |
+ This file contains functions for converting Linear Prediction |
+ Coefficients (LPC) to Line Spectral Pair (LSP) and back. Note that the |
+ LSP coefficients are not in radians format but in the x domain of the |
+ unit circle. |
+ |
+\*---------------------------------------------------------------------------*/ |
+/** |
+ @file lsp.h |
+ @brief Line Spectral Pair (LSP) functions. |
+*/ |
+/* Speex License: |
+ |
+ 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 __AK2LSPD__ |
+#define __AK2LSPD__ |
+ |
+#include "arch.h" |
+ |
+int lpc_to_lsp (spx_coef_t *a, int lpcrdr, spx_lsp_t *freq, int nb, spx_word16_t delta, char *stack); |
+void lsp_to_lpc(spx_lsp_t *freq, spx_coef_t *ak, int lpcrdr, char *stack); |
+ |
+/*Added by JMV*/ |
+void lsp_enforce_margin(spx_lsp_t *lsp, int len, spx_word16_t margin); |
+ |
+void lsp_interpolate(spx_lsp_t *old_lsp, spx_lsp_t *new_lsp, spx_lsp_t *interp_lsp, int len, int subframe, int nb_subframes); |
+ |
+#endif /* __AK2LSPD__ */ |
Property changes on: speex/libspeex/lsp.h |
___________________________________________________________________ |
Name: svn:executable |
+ * |