mirror of
https://github.com/bluekitchen/btstack.git
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113 lines
3.1 KiB
C
113 lines
3.1 KiB
C
/*
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* Copyright (C) 2016 BlueKitchen GmbH
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holders nor the names of
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* 4. Any redistribution, use, or modification is done solely for
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* personal benefit and not for any commercial purpose or for
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* monetary gain.
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*
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* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN
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* GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Please inquire about commercial licensing options at
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* contact@bluekitchen-gmbh.com
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*
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*/
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#ifndef WAV_UIL_H
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#define WAV_UIL_H
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#include <stdint.h>
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#if defined __cplusplus
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extern "C" {
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#endif
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// return 0 if ok
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/**
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* Open singleton wav writer
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* @return 0 if ok
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*/
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int wav_writer_open(const char * filepath, int num_channels, int sampling_frequency);
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/**
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* Write Int8 samples
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* @return 0 if ok
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*/
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int wav_writer_write_int8(int num_samples, int8_t * data);
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/**
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* Write Int16 samples (host endianess)
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* @return 0 if ok
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*/
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int wav_writer_write_int16(int num_samples, int16_t * data);
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/**
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* Write Little Endian Int16 samples
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* @return 0 if ok
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*/
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int wav_writer_write_le_int16(int num_samples, int16_t * data);
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/**
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* Close wav writer and update wav file header
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* @return 0 if ok
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*/
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int wav_writer_close(void);
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/**
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* Open singleton wav reader
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* @return 0 if ok
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*/
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int wav_reader_open(const char * filepath);
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/**
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* Get number of channels
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*/
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uint8_t wav_reader_get_num_channels(void);
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/**
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* Get sampling rate
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*/
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uint32_t wav_reader_get_sampling_rate(void);
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/**
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* Read Int8 samples
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* @return 0 if ok
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*/
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int wav_reader_read_int8(int num_samples, int8_t * data);
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/**
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* Read Int16 samples (host endianess)
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* @return 0 if ok
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*/
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int wav_reader_read_int16(int num_samples, int16_t * data);
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/**
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* Close war reader
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* @return 0 if ok
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*/
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int wav_reader_close(void);
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#if defined __cplusplus
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}
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#endif
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#endif // WAV_UTIL_H
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