Version 0.1.2 from FTP

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@169 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 95 insertions, 0 deletions

diff --git a/codecs/lpc10/dcbias.c b/codecs/lpc10/dcbias.c
new file mode 100755
index 000000000..a78f490e7
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+++ b/codecs/lpc10/dcbias.c
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+/*
+
+$Log$
+Revision 1.1  2000/01/05 08:20:39  markster
+Version 0.1.2 from FTP
+
+Revision 1.2  2000/01/05 08:20:39  markster
+Some OSS fixes and a few lpc changes to make it actually work
+
+ * Revision 1.1  1996/08/19  22:40:23  jaf
+ * Initial revision
+ *
+
+*/
+
+#ifdef P_R_O_T_O_T_Y_P_E_S
+extern int dcbias_(integer *len, real *speech, real *sigout);
+#endif
+
+/*  -- translated by f2c (version 19951025).
+   You must link the resulting object file with the libraries:
+	-lf2c -lm   (in that order)
+*/
+
+#include "f2c.h"
+
+/* ********************************************************************* */
+
+/* 	DCBIAS Version 50 */
+
+/* $Log$
+ * Revision 1.1  2000/01/05 08:20:39  markster
+ * Version 0.1.2 from FTP
+ *
+/* Revision 1.2  2000/01/05 08:20:39  markster
+/* Some OSS fixes and a few lpc changes to make it actually work
+/*
+ * Revision 1.1  1996/08/19  22:40:23  jaf
+ * Initial revision
+ * */
+/* Revision 1.3  1996/03/18  21:19:22  jaf */
+/* Just added a few comments about which array indices of the arguments */
+/* are used, and mentioning that this subroutine has no local state. */
+
+/* Revision 1.2  1996/03/13  16:44:53  jaf */
+/* Comments added explaining that none of the local variables of this */
+/* subroutine need to be saved from one invocation to the next. */
+
+/* Revision 1.1  1996/02/07 14:44:21  jaf */
+/* Initial revision */
+
+
+/* ********************************************************************* */
+
+/* Calculate and remove DC bias from buffer. */
+
+/* Input: */
+/*  LEN    - Length of speech buffers */
+/*  SPEECH - Input speech buffer */
+/*           Indices 1 through LEN read. */
+/* Output: */
+/*  SIGOUT - Output speech buffer */
+/*           Indices 1 through LEN written */
+
+/* This subroutine has no local state. */
+
+/* Subroutine */ int dcbias_(integer *len, real *speech, real *sigout)
+{
+    /* System generated locals */
+    integer i__1;
+
+    /* Local variables */
+    real bias;
+    integer i__;
+
+/* 	Arguments */
+/*       Local variables that need not be saved */
+    /* Parameter adjustments */
+    --sigout;
+    --speech;
+
+    /* Function Body */
+    bias = 0.f;
+    i__1 = *len;
+    for (i__ = 1; i__ <= i__1; ++i__) {
+	bias += speech[i__];
+    }
+    bias /= *len;
+    i__1 = *len;
+    for (i__ = 1; i__ <= i__1; ++i__) {
+	sigout[i__] = speech[i__] - bias;
+    }
+    return 0;
+} /* dcbias_ */
+