1 /* GStreamer 2 * Copyright (C) 2009 Tiago Katcipis <tiagokatcipis@gmail.com> 3 * Copyright (C) 2009 Paulo Pizarro <paulo.pizarro@gmail.com> 4 * Copyright (C) 2009 Rogério Santos <rogerio.santos@digitro.com.br> 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public 17 * License along with this library; if not, write to the 18 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22 23 #ifndef __VAD_FILTER_H__ 24 #define __VAD_FILTER_H__ 25 26 #define VAD_SILENCE 0 27 #define VAD_VOICE 1 28 29 30 typedef struct _vad_s VADFilter; 31 32 gint vad_update(VADFilter *p, gint16 *data, gint len); 33 34 void vad_set_hysteresis(VADFilter *p, guint64 hysteresis); 35 36 guint64 vad_get_hysteresis(VADFilter *p); 37 38 void vad_set_threshold(VADFilter *p, gint threshold_db); 39 40 gint vad_get_threshold_as_db(VADFilter *p); 41 42 VADFilter* vad_new(guint64 hysteresis, gint threshold); 43 44 void vad_reset(VADFilter *p); 45 46 void vad_destroy(VADFilter *p); 47 48 #endif /* __VAD_FILTER__ */ 49