Add m-esr52 at 52.6.0

1 files changed, 79 insertions, 0 deletions

diff --git a/media/sphinxbase/src/libsphinxbase/fe/fe_prespch_buf.h b/media/sphinxbase/src/libsphinxbase/fe/fe_prespch_buf.h
new file mode 100644
index 000000000..d349ddfdb
--- /dev/null
+++ b/media/sphinxbase/src/libsphinxbase/fe/fe_prespch_buf.h
@@ -0,0 +1,79 @@
+/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/* ====================================================================
+ * Copyright (c) 2013 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.
+ *
+ * ====================================================================
+ *
+ */
+
+/* Buffer that maintains both features and raw audio for the VAD implementation */
+
+#ifndef FE_INTERNAL_H
+#define FE_INTERNAL_H
+
+#include "sphinxbase/fe.h"
+
+typedef struct prespch_buf_s prespch_buf_t;
+
+/* Creates prespeech buffer */
+prespch_buf_t *fe_prespch_init(int num_frames, int num_cepstra,
+                               int num_samples);
+
+/* Extends pcm prespeech buffer with specified amount of frames */
+void fe_prespch_extend_pcm(prespch_buf_t* prespch_buf, int num_frames_pcm);
+
+/* Reads mfcc frame from prespeech buffer */
+int fe_prespch_read_cep(prespch_buf_t * prespch_buf, mfcc_t * fea);
+
+/* Writes mfcc frame to prespeech buffer */
+void fe_prespch_write_cep(prespch_buf_t * prespch_buf, mfcc_t * fea);
+
+/* Reads pcm frame from prespeech buffer */
+void fe_prespch_read_pcm(prespch_buf_t * prespch_buf, int16 ** samples,
+                         int32 * samples_num);
+
+/* Writes pcm frame to prespeech buffer */
+void fe_prespch_write_pcm(prespch_buf_t * prespch_buf, int16 * samples);
+
+/* Resets read/write pointers for cepstrum buffer */
+void fe_prespch_reset_cep(prespch_buf_t * prespch_buf);
+
+/* Resets read/write pointer for pcm audio buffer */
+void fe_prespch_reset_pcm(prespch_buf_t * prespch_buf);
+
+/* Releases prespeech buffer */
+void fe_prespch_free(prespch_buf_t * prespch_buf);
+
+/* Returns number of accumulated frames */
+int32 fe_prespch_ncep(prespch_buf_t * prespch_buf);
+
+#endif                          /* FE_INTERNAL_H */