diff options
Diffstat (limited to 'src/helper.c')
| -rw-r--r-- | src/helper.c | 48 |
1 files changed, 29 insertions, 19 deletions
diff --git a/src/helper.c b/src/helper.c index e9e79e5..2a050e9 100644 --- a/src/helper.c +++ b/src/helper.c @@ -1,24 +1,26 @@ -/* libxtract feature extraction library - * - * Copyright (C) 2006 Jamie Bullock +/* + * Copyright (C) 2012 Jamie Bullock * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, - * USA. */ - /* helper.c: helper functions. */ #include <config.h> @@ -33,7 +35,8 @@ #define INDEX 1 #endif -int xtract_windowed(const float *data, const int N, const void *argv, float *result){ +int xtract_windowed(const float *data, const int N, const void *argv, float *result) +{ int n; const float *window; @@ -48,7 +51,8 @@ int xtract_windowed(const float *data, const int N, const void *argv, float *res } -int xtract_features_from_subframes(const float *data, const int N, const int feature, const void *argv, float *result){ +int xtract_features_from_subframes(const float *data, const int N, const int feature, const void *argv, float *result) +{ const float *frame1, *frame2; @@ -73,7 +77,8 @@ int xtract_features_from_subframes(const float *data, const int N, const int fea } -inline int xtract_is_denormal(double const d){ +inline int xtract_is_denormal(double const d) +{ if(sizeof(d) != 2 * sizeof(int)) fprintf(stderr, "libxtract: Error: xtract_is_denormal() detects inconsistent wordlength for type 'double'\n"); @@ -81,3 +86,8 @@ inline int xtract_is_denormal(double const d){ return (l&0x7ff00000) == 0 && d!=0; //Check for 0 may not be necessary } +inline bool xtract_is_poweroftwo(unsigned int x) +{ + return ((x != 0) && !(x & (x - 1))); +} + |