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Diffstat (limited to 'thirdparties/win32/include/BroadVoice16/bv16/bv16cnst.h')
| -rw-r--r-- | thirdparties/win32/include/BroadVoice16/bv16/bv16cnst.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/thirdparties/win32/include/BroadVoice16/bv16/bv16cnst.h b/thirdparties/win32/include/BroadVoice16/bv16/bv16cnst.h new file mode 100644 index 0000000..f6b42b5 --- /dev/null +++ b/thirdparties/win32/include/BroadVoice16/bv16/bv16cnst.h @@ -0,0 +1,132 @@ +/*****************************************************************************/
+/* BroadVoice(R)16 (BV16) Fixed-Point ANSI-C Source Code */
+/* Revision Date: November 13, 2009 */
+/* Version 1.1 */
+/*****************************************************************************/
+
+/*****************************************************************************/
+/* Copyright 2000-2009 Broadcom Corporation */
+/* */
+/* This software is provided under the GNU Lesser General Public License, */
+/* version 2.1, as published by the Free Software Foundation ("LGPL"). */
+/* This program is distributed in the hope that it will be useful, but */
+/* WITHOUT ANY SUPPORT OR WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the LGPL for */
+/* more details. A copy of the LGPL is available at */
+/* http://www.broadcom.com/licenses/LGPLv2.1.php, */
+/* or by writing to the Free Software Foundation, Inc., */
+/* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+/*****************************************************************************/
+
+
+/*****************************************************************************
+ bv16cnst.h : BV16 constants
+
+ $Log$
+******************************************************************************/
+
+#ifndef BV16CNST_H
+#define BV16CNST_H
+
+/* ----- Basic Codec Parameters ----- */
+#define FRSZ 40 /* frame size */
+#define WINSZ 160 /* lpc analysis WINdow SiZe */
+#define MAXPP 137 /* MAXimum Pitch Period */
+#define MINPP 10 /* MINimum Pitch Period */
+#define PWSZ 120 /* Pitch analysis Window SiZe */
+#define MAXPP1 (MAXPP+1)/* MAXimum Pitch Period + 1 */
+
+/* Quantization parameters */
+#define VDIM 4 /* excitation vector dimension */
+#define CBSZ 16 /* excitation codebook size */
+#define PPCBSZ 32 /* pitch predictor codebook size */
+#define LGPORDER 8 /* Log-Gain Predictor OODER */
+#define LGPECBSZ 16 /* Log-Gain Prediction Error CodeBook SiZe */
+#define LSPPORDER 8 /* LSP MA Predictor ORDER */
+#define LSPECBSZ1 128 /* codebook size of 1st-stage LSP VQ */
+#define LSPECBSZ2 64 /* codebook size of 2nd-stage LSP VQ; 1-bit for sign */
+
+/* Excitation gain quantization */
+#define GPO 8 /* order of MA prediction */
+#define NG 18 /* number of relative gain bins */
+#define GLB -24. /* lower relative gain bound */
+#define NGC 12 /* number of gain change bins */
+#define GCLB -8. /* lower gain change bound */
+#define Minlg 0. /* minimum log-gain */
+#define TMinlg 1. /* minimum linear gain */
+#define LGCBSZ 16 /* size of codebook */
+
+/* Definitions for periodicity to gain scaling mapping */
+#define ScPLCGmin 1639 /* 0.1 Q14 */
+#define ScPLCGmax 14746 /* 0.9 Q14 */
+#define ScPLCG_b -32768 /* -2.0 in Q14 */
+#define ScPLCG_a 31129 /* 1.9 in Q14 */
+#define HoldPLCG 8
+#define AttnPLCG 50
+#define AttnFacPLCG 20971
+
+/* Level Estimation */
+#define estl_alpha 32760
+#define estl_alpha1 32640
+#define estl_beta 32704
+#define estl_beta1 64
+#define estl_a 32640
+#define estl_a1 128
+#define estl_TH 6554
+#define Nfdm 100 /* Max number of frames with fast decay of Lmin */
+
+/* Log-Gain Limitation */
+#define LGLB -24 /* Log-Gain Lower Bound */
+#define LGCLB -8 /* Log-Gain Change Lower Bound */
+#define NGB 18 /* Number of Gain Bins */
+#define NGCB 12 /* Number of Gain Change Bins */
+
+/* Buffer offsets and sizes */
+#define XOFF MAXPP1 /* offset for x() frame */
+#define LX (XOFF+FRSZ) /* Length of x() buffer */
+#define XQOFF (MAXPP1) /* xq() offset before current subframe */
+#define LXQ (XQOFF+FRSZ) /* Length of xq() buffer */
+#define LTMOFF (MAXPP1) /* Long-Term filter Memory OFFset */
+
+/* Long-term postfilter */
+#define DPPQNS 4 /* Delta pitch period for search */
+#define NINT 20 /* length of filter interpolation */
+#define ATHLD1 18022 /* 0.55 Q15 threshold on normalized pitch correlation */
+#define ATHLD2 26214 /* 0.80 Q15 threshold on normalized pitch correlation */
+#define ScLTPF 9830 /* 0.3 Q15 scaling of LTPF coefficient */
+
+/* Coarse pitch search */
+#define MAX_NPEAKS 7
+#define TH1 23921 /* first threshold for cor*cor/energy */
+#define TH2 13107 /* second threshold for cor*cor/energy */
+#define LPTH1 25887 /* Last Pitch cor*cor/energy THreshold 1 */
+#define LPTH2 14090 /* Last Pitch cor*cor/energy THreshold 2 */
+#define MPDTH 2130 /* Multiple Pitch Deviation THreshold */
+#define SMDTH 3113 /* Sub-Multiple pitch Deviation THreshold 0.125 */
+#define MPTH4 9830
+
+/* Decimation parameters */
+#define DECF 4 /* DECimation Factor for coarse pitch period search */
+#define FRSZD (FRSZ/DECF) /* FRame SiZe in DECF:1 lowband domain */
+#define MAXPPD (MAXPP/DECF) /* MAX Pitch in DECF:1, */
+#define MINPPD ((int)(MINPP/DECF)) /* MINimum Pitch Period in DECF:1 */
+#define PWSZD (PWSZ/DECF) /* Pitch ana Window SiZe in DECF:1 domain */
+#define DFO 4
+#define MAXPPD1 (MAXPPD+1)
+#define LXD (MAXPPD1+PWSZD)
+#define XDOFF (LXD-FRSZD)
+#define HMAXPPD (MAXPPD/2)
+#define M1 (MINPPD-1)
+#define M2 MAXPPD1
+#define HDECF (DECF/2)
+
+/* Front-end 150 Hz highpass filter */
+#define HPO 2 /* High-pass filter order */
+
+/* LPC weighting filter */
+#define LTWF 4096 /* 0.5 in Q13 perceptual Weighting Factor Lowband */
+
+/* pole-zero NFC shaping filter */
+#define NSTORDER 8
+
+#endif /* BV16CNST_H */
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