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Unified Diff: third_party/speex/libspeex/lsp.h

Issue 608853002: Move speex into the chrome repo (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@pullpdf
Patch Set: deps Created 6 years, 3 months ago
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Index: third_party/speex/libspeex/lsp.h
diff --git a/third_party/speex/libspeex/lsp.h b/third_party/speex/libspeex/lsp.h
new file mode 100644
index 0000000000000000000000000000000000000000..648652fb9ef45b67a0c00f8c607fda0fa74194bc
--- /dev/null
+++ b/third_party/speex/libspeex/lsp.h
@@ -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__ */
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