00001 /* libxtract feature extraction library 00002 * 00003 * Copyright (C) 2006 Jamie Bullock 00004 * 00005 * This program is free software; you can redistribute it and/or modify 00006 * it under the terms of the GNU General Public License as published by 00007 * the Free Software Foundation; either version 2 of the License, or 00008 * (at your option) any later version. 00009 * 00010 * This program is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 * GNU General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU General Public License 00016 * along with this program; if not, write to the Free Software 00017 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 00018 * USA. 00019 */ 00020 00021 /* \file xtract_types.h: declares specialised variable types used by libxtract */ 00022 00023 #ifndef XTRACT_TYPES_H 00024 #define XTRACT_TYPES_H 00025 00026 #ifdef __cplusplus 00027 extern "C" { 00028 #endif 00029 00030 /* \brief Data structure used to store amplitude data between calls to xtract_attack_time and other functions. */ 00031 typedef struct _xtract_amp_tracker { 00032 int count; 00033 float previous_amp; 00034 } xtract_amp_tracker; 00035 00036 typedef struct _xtract_frame_tracker { 00037 int frame_count; 00038 float *previous_frame; 00039 } xtract_frame_tracker; 00040 00041 #ifdef __cplusplus 00042 } 00043 #endif 00044 00045 #endif