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68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
/**
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* @file utils/audio_buffer.h
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* @author Martin Pulec <pulec@cesnet.cz>
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*/
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/*
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* Copyright (c) 2016 CESNET z.s.p.o.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, is 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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*
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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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*
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* 3. Neither the name of CESNET nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef AUDIO_BUFFER_H_
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#define AUDIO_BUFFER_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct audio_buffer;
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typedef struct audio_buffer audio_buffer_t;
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struct audio_buffer *audio_buffer_init(int sample_rate, int bps, int ch_count, int suggested_latency_ms);
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void audio_buffer_destroy(struct audio_buffer *buf);
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int audio_buffer_read(struct audio_buffer *buf, char *out, int max_len);
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void audio_buffer_write(struct audio_buffer *buf, const char *in, int len);
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// used also for ring buffer;
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struct audio_buffer_api {
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void (*destroy)(void *buf);
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int (*read)(void *buf, char *out, int max_len);
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void (*write)(void *buf, const char *in, int len);
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};
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extern struct audio_buffer_api audio_buffer_fns;
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#ifdef __cplusplus
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}
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#endif
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#endif /* AUDIO_BUFFER_H_ */
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