/*
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mediastreamer2 library - modular sound and video processing and streaming
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Copyright (C) 2009 Simon MORLAT (simon.morlat@linphone.org)
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef msequalizer_h
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#define msequalizer_h
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#include <mediastreamer2/msfilter.h>
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typedef struct _MSEqualizerGain{
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float frequency; ///< In hz
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float gain; ///< between 0-1.2
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float width; ///< frequency band width around mid frequency for which the gain is applied, in Hz. Use 0 for the lowest frequency resolution.
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}MSEqualizerGain;
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#ifdef __cplusplus
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extern "C" {
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#endif
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MS2_PUBLIC MSList *ms_parse_equalizer_string(const char *str);
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#ifdef __cplusplus
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}
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#endif
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#define MS_EQUALIZER_SET_GAIN MS_FILTER_METHOD(MS_EQUALIZER_ID,0,MSEqualizerGain)
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#define MS_EQUALIZER_GET_GAIN MS_FILTER_METHOD(MS_EQUALIZER_ID,1,MSEqualizerGain)
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#define MS_EQUALIZER_SET_ACTIVE MS_FILTER_METHOD(MS_EQUALIZER_ID,2,int)
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/**dump the spectral response into a table of float. The table must be sized according to the value returned by
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* MS_EQUALIZER_GET_NUM_FREQUENCIES
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**/
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#define MS_EQUALIZER_DUMP_STATE MS_FILTER_METHOD(MS_EQUALIZER_ID,3,float)
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/**returns the number of frequencies*/
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#define MS_EQUALIZER_GET_NUM_FREQUENCIES MS_FILTER_METHOD(MS_EQUALIZER_ID,4,int)
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#endif
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