speex_buffer.h revision 98913fed6520d8849fb2e246be943e04474aefa4 
1/* Copyright (C) 2007 Jean-Marc Valin
2
3   File: speex_buffer.h
4   This is a very simple ring buffer implementation. It is not thread-safe
5   so you need to do your own locking.
6
7   Redistribution and use in source and binary forms, with or without
8   modification, are permitted provided that the following conditions are
9   met:
10
11   1. Redistributions of source code must retain the above copyright notice,
12   this list of conditions and the following disclaimer.
13
14   2. Redistributions in binary form must reproduce the above copyright
15   notice, this list of conditions and the following disclaimer in the
16   documentation and/or other materials provided with the distribution.
17
18   3. The name of the author may not be used to endorse or promote products
19   derived from this software without specific prior written permission.
20
21   THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22   IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24   DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
25   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30   ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31   POSSIBILITY OF SUCH DAMAGE.
32*/
33
34#ifndef SPEEX_BUFFER_H
35#define SPEEX_BUFFER_H
36
37#include "speex/speex_types.h"
38
39#ifdef __cplusplus
40extern "C" {
41#endif
42
43struct SpeexBuffer_;
44typedef struct SpeexBuffer_ SpeexBuffer;
45
46SpeexBuffer *speex_buffer_init(int size);
47
48void speex_buffer_destroy(SpeexBuffer *st);
49
50int speex_buffer_write(SpeexBuffer *st, void *data, int len);
51
52int speex_buffer_writezeros(SpeexBuffer *st, int len);
53
54int speex_buffer_read(SpeexBuffer *st, void *data, int len);
55
56int speex_buffer_get_available(SpeexBuffer *st);
57
58int speex_buffer_resize(SpeexBuffer *st, int len);
59
60#ifdef __cplusplus
61}
62#endif
63
64#endif
65
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69