1 files changed, 90 insertions, 0 deletions
diff --git a/media/sphinxbase/src/libsphinxbase/fe/fe_warp.h b/media/sphinxbase/src/libsphinxbase/fe/fe_warp.h
new file mode 100644
index 000000000..f2fd14550
--- /dev/null
+++ b/media/sphinxbase/src/libsphinxbase/fe/fe_warp.h
@@ -0,0 +1,90 @@
+/* ====================================================================
+ * Copyright (c) 2006 Carnegie Mellon University.  All rights 
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. 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.
+ *
+ * This work was supported in part by funding from the Defense Advanced 
+ * Research Projects Agency and the National Science Foundation of the 
+ * United States of America, and the CMU Sphinx Speech Consortium.
+ *
+ * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND 
+ * ANY EXPRESSED 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 CARNEGIE MELLON UNIVERSITY
+ * NOR ITS EMPLOYEES 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 FE_WARP_H
+#define FE_WARP_H
+
+#include "fe_internal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#if 0
+/* Fool Emacs. */
+}
+#endif
+
+#define FE_WARP_ID_INVERSE_LINEAR	0
+#define FE_WARP_ID_AFFINE	        1
+#define FE_WARP_ID_PIECEWISE_LINEAR	2
+#define FE_WARP_ID_EIDE_GISH		3
+#define FE_WARP_ID_MAX		        2
+#define FE_WARP_ID_NONE	       0xffffffff
+
+typedef struct {
+    void (*set_parameters)(char const *param_str, float sampling_rate);
+    const char * (*doc)(void);
+    uint32 (*id)(void);
+    uint32 (*n_param)(void);
+    float (*warped_to_unwarped)(float nonlinear);
+    float (*unwarped_to_warped)(float linear);
+    void (*print)(const char *label);
+} fe_warp_conf_t;
+
+int fe_warp_set(melfb_t *mel, const char *id_name);
+
+uint32 fe_warp_id(melfb_t *mel);
+
+const char * fe_warp_doc(melfb_t *mel);
+
+void fe_warp_set_parameters(melfb_t *mel, char const *param_str, float sampling_rate);
+
+uint32 fe_warp_n_param(melfb_t *mel);
+
+float fe_warp_warped_to_unwarped(melfb_t *mel, float nonlinear);
+
+float fe_warp_unwarped_to_warped(melfb_t *mel, float linear);
+
+void fe_warp_print(melfb_t *mel, const char *label);
+
+#define FE_WARP_NO_SIZE	0xffffffff
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* FE_WARP_H */