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| author | Dan Everton <dan@iocaine.org> | 2007-02-10 11:44:26 +0000 |
|---|---|---|
| committer | Dan Everton <dan@iocaine.org> | 2007-02-10 11:44:26 +0000 |
| commit | 7bf62e8da66ca8ff0acc2702f92ea4fe06eb94b1 (patch) | |
| tree | c9db4558a73ae3094839c4655fa0b8ebc2231c56 /apps/codecs/libspeex/lsp.h | |
| parent | 51587512635a8b19e6a5f19a20074d0d4d1f17da (diff) | |
| download | rockbox-7bf62e8da66ca8ff0acc2702f92ea4fe06eb94b1.zip rockbox-7bf62e8da66ca8ff0acc2702f92ea4fe06eb94b1.tar.gz rockbox-7bf62e8da66ca8ff0acc2702f92ea4fe06eb94b1.tar.bz2 rockbox-7bf62e8da66ca8ff0acc2702f92ea4fe06eb94b1.tar.xz | |
* Sync Speex codec with Speex SVN revision 12449 (roughly Speex 1.2beta1).
* Redo the changes required to make Speex compile in Rockbox. Should be a bit easier to keep in sync with Speex SVN now.
* Fix name of Speex library in codecs Makefile.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12254 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/codecs/libspeex/lsp.h')
| -rw-r--r-- | apps/codecs/libspeex/lsp.h | 128 |
1 files changed, 64 insertions, 64 deletions
diff --git a/apps/codecs/libspeex/lsp.h b/apps/codecs/libspeex/lsp.h index 6266f42..9d0345f 100644 --- a/apps/codecs/libspeex/lsp.h +++ b/apps/codecs/libspeex/lsp.h @@ -1,64 +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 "misc.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__ */ +/*---------------------------------------------------------------------------*\
+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 "misc.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__ */
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