portaudio/pablio/pablio.h

#ifndef _PABLIO_H
#define _PABLIO_H

#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */

/*
 * $Id: pablio.h 1083 2006-08-23 07:30:49Z rossb $
 * PABLIO.h
 * Portable Audio Blocking read/write utility.
 *
 * Author: Phil Burk, http://www.softsynth.com/portaudio/
 *
 * Include file for PABLIO, the Portable Audio Blocking I/O Library.
 * PABLIO is built on top of PortAudio, the Portable Audio Library.
 * For more information see: http://www.portaudio.com
 * Copyright (c) 1999-2000 Ross Bencina and Phil Burk
 *
 * 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:
 *
 * 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.
 */

/*
 * The text above constitutes the entire PortAudio license; however,
 * the PortAudio community also makes the following non-binding requests:
 *
 * Any person wishing to distribute modifications to the Software is
 * requested to send the modifications to the original developer so that
 * they can be incorporated into the canonical version. It is also
 * requested that these non-binding requests be included along with the
 * license above.
 */

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "portaudio.h"
#include "ringbuffer.h"
#include <string.h>

typedef struct
{
    RingBuffer   inFIFO;
    RingBuffer   outFIFO;
    PortAudioStream *stream;
    int          bytesPerFrame;
    int          samplesPerFrame;
}
PABLIO_Stream;

/* Values for flags for OpenAudioStream(). */
#define PABLIO_READ     (1<<0)
#define PABLIO_WRITE    (1<<1)
#define PABLIO_READ_WRITE    (PABLIO_READ|PABLIO_WRITE)
#define PABLIO_MONO     (1<<2)
#define PABLIO_STEREO   (1<<3)

/************************************************************
 * Write data to ring buffer.
 * Will not return until all the data has been written.
 */
long WriteAudioStream( PABLIO_Stream *aStream, void *data, long numFrames );

/************************************************************
 * Read data from ring buffer.
 * Will not return until all the data has been read.
 */
long ReadAudioStream( PABLIO_Stream *aStream, void *data, long numFrames );

/************************************************************
 * Return the number of frames that could be written to the stream without
 * having to wait.
 */
long GetAudioStreamWriteable( PABLIO_Stream *aStream );

/************************************************************
 * Return the number of frames that are available to be read from the
 * stream without having to wait.
 */
long GetAudioStreamReadable( PABLIO_Stream *aStream );

/************************************************************
 * Opens a PortAudio stream with default characteristics.
 * Allocates PABLIO_Stream structure.
 *
 * flags parameter can be an ORed combination of:
 *    PABLIO_READ, PABLIO_WRITE, or PABLIO_READ_WRITE,
 *    and either PABLIO_MONO or PABLIO_STEREO
 */
PaError OpenAudioStream( PABLIO_Stream **aStreamPtr, double sampleRate,
                         PaSampleFormat format, long flags );

PaError CloseAudioStream( PABLIO_Stream *aStream );

#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _PABLIO_H */
1	#ifndef _PABLIO_H
2	#define _PABLIO_H
3
4	#ifdef __cplusplus
5	extern "C"
6	{
7	#endif /* __cplusplus */
8
9	/*
10	* $Id: pablio.h 1083 2006-08-23 07:30:49Z rossb $
11	* PABLIO.h
12	* Portable Audio Blocking read/write utility.
13	*
14	* Author: Phil Burk, http://www.softsynth.com/portaudio/
15	*
16	* Include file for PABLIO, the Portable Audio Blocking I/O Library.
17	* PABLIO is built on top of PortAudio, the Portable Audio Library.
18	* For more information see: http://www.portaudio.com
19	* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
20	*
21	* Permission is hereby granted, free of charge, to any person obtaining
22	* a copy of this software and associated documentation files
23	* (the "Software"), to deal in the Software without restriction,
24	* including without limitation the rights to use, copy, modify, merge,
25	* publish, distribute, sublicense, and/or sell copies of the Software,
26	* and to permit persons to whom the Software is furnished to do so,
27	* subject to the following conditions:
28	*
29	* The above copyright notice and this permission notice shall be
30	* included in all copies or substantial portions of the Software.
31	*
32	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
33	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
34	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
35	* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
36	* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
37	* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
38	* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
39	*/
40
41	/*
42	* The text above constitutes the entire PortAudio license; however,
43	* the PortAudio community also makes the following non-binding requests:
44	*
45	* Any person wishing to distribute modifications to the Software is
46	* requested to send the modifications to the original developer so that
47	* they can be incorporated into the canonical version. It is also
48	* requested that these non-binding requests be included along with the
49	* license above.
50	*/
51
52	#include <stdio.h>
53	#include <stdlib.h>
54	#include <math.h>
55	#include "portaudio.h"
56	#include "ringbuffer.h"
57	#include <string.h>
58
59	typedef struct
60	{
61	RingBuffer inFIFO;
62	RingBuffer outFIFO;
63	PortAudioStream *stream;
64	int bytesPerFrame;
65	int samplesPerFrame;
66	}
67	PABLIO_Stream;
68
69	/* Values for flags for OpenAudioStream(). */
70	#define PABLIO_READ (1<<0)
71	#define PABLIO_WRITE (1<<1)
72	#define PABLIO_READ_WRITE (PABLIO_READ\|PABLIO_WRITE)
73	#define PABLIO_MONO (1<<2)
74	#define PABLIO_STEREO (1<<3)
75
76	/************************************************************
77	* Write data to ring buffer.
78	* Will not return until all the data has been written.
79	*/
80	long WriteAudioStream( PABLIO_Stream aStream, void data, long numFrames );
81
82	/************************************************************
83	* Read data from ring buffer.
84	* Will not return until all the data has been read.
85	*/
86	long ReadAudioStream( PABLIO_Stream aStream, void data, long numFrames );
87
88	/************************************************************
89	* Return the number of frames that could be written to the stream without
90	* having to wait.
91	*/
92	long GetAudioStreamWriteable( PABLIO_Stream *aStream );
93
94	/************************************************************
95	* Return the number of frames that are available to be read from the
96	* stream without having to wait.
97	*/
98	long GetAudioStreamReadable( PABLIO_Stream *aStream );
99
100	/************************************************************
101	* Opens a PortAudio stream with default characteristics.
102	* Allocates PABLIO_Stream structure.
103	*
104	* flags parameter can be an ORed combination of:
105	* PABLIO_READ, PABLIO_WRITE, or PABLIO_READ_WRITE,
106	* and either PABLIO_MONO or PABLIO_STEREO
107	*/
108	PaError OpenAudioStream( PABLIO_Stream **aStreamPtr, double sampleRate,
109	PaSampleFormat format, long flags );
110
111	PaError CloseAudioStream( PABLIO_Stream *aStream );
112
113	#ifdef __cplusplus
114	}
115	#endif /* __cplusplus */
116	#endif /* _PABLIO_H */