Index: speex/libspeex/quant_lsp.h |
=================================================================== |
--- speex/libspeex/quant_lsp.h (revision 0) |
+++ speex/libspeex/quant_lsp.h (revision 0) |
@@ -0,0 +1,74 @@ |
+/* 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 |
Property changes on: speex/libspeex/quant_lsp.h |
___________________________________________________________________ |
Name: svn:executable |
+ * |