/[pcsx2_0.9.7]/trunk/3rdparty/portaudio/pablio/test_rw.c
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Contents of /trunk/3rdparty/portaudio/pablio/test_rw.c

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Revision 273 - (show annotations) (download)
Fri Nov 12 01:10:22 2010 UTC (9 years, 9 months ago) by william
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File size: 3850 byte(s)
Auto Commited Import of: pcsx2-0.9.7-DEBUG (upstream: v0.9.7.4013 local: v0.9.7.197-latest) in ./trunk
1 /*
2 * $Id: test_rw.c 1083 2006-08-23 07:30:49Z rossb $
3 * test_rw.c
4 * Read input from one stream and write it to another.
5 *
6 * Author: Phil Burk, http://www.softsynth.com/portaudio/
7 *
8 * This program uses PABLIO, the Portable Audio Blocking I/O Library.
9 * PABLIO is built on top of PortAudio, the Portable Audio Library.
10 * For more information see: http://www.portaudio.com
11 * Copyright (c) 1999-2000 Ross Bencina and Phil Burk
12 *
13 * Permission is hereby granted, free of charge, to any person obtaining
14 * a copy of this software and associated documentation files
15 * (the "Software"), to deal in the Software without restriction,
16 * including without limitation the rights to use, copy, modify, merge,
17 * publish, distribute, sublicense, and/or sell copies of the Software,
18 * and to permit persons to whom the Software is furnished to do so,
19 * subject to the following conditions:
20 *
21 * The above copyright notice and this permission notice shall be
22 * included in all copies or substantial portions of the Software.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
27 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
28 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
29 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 */
32
33 /*
34 * The text above constitutes the entire PortAudio license; however,
35 * the PortAudio community also makes the following non-binding requests:
36 *
37 * Any person wishing to distribute modifications to the Software is
38 * requested to send the modifications to the original developer so that
39 * they can be incorporated into the canonical version. It is also
40 * requested that these non-binding requests be included along with the
41 * license above.
42 */
43
44 #include <stdio.h>
45 #include <stdlib.h>
46 #include "pablio.h"
47
48 /*
49 ** Note that many of the older ISA sound cards on PCs do NOT support
50 ** full duplex audio (simultaneous record and playback).
51 ** And some only support full duplex at lower sample rates.
52 */
53 #define SAMPLE_RATE (44100)
54 #define NUM_SECONDS (5)
55 #define SAMPLES_PER_FRAME (2)
56 #define FRAMES_PER_BLOCK (64)
57
58 /* Select whether we will use floats or shorts. */
59 #if 1
60 #define SAMPLE_TYPE paFloat32
61 typedef float SAMPLE;
62 #else
63 #define SAMPLE_TYPE paInt16
64 typedef short SAMPLE;
65 #endif
66
67 /*******************************************************************/
68 int main(void);
69 int main(void)
70 {
71 int i;
72 SAMPLE samples[SAMPLES_PER_FRAME * FRAMES_PER_BLOCK];
73 PaError err;
74 PABLIO_Stream *aStream;
75
76 printf("Full duplex sound test using PortAudio and RingBuffers\n");
77 fflush(stdout);
78
79 /* Open simplified blocking I/O layer on top of PortAudio. */
80 err = OpenAudioStream( &aStream, SAMPLE_RATE, SAMPLE_TYPE,
81 (PABLIO_READ_WRITE | PABLIO_STEREO) );
82 if( err != paNoError ) goto error;
83
84 /* Process samples in the foreground. */
85 for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i += FRAMES_PER_BLOCK )
86 {
87 /* Read one block of data into sample array from audio input. */
88 ReadAudioStream( aStream, samples, FRAMES_PER_BLOCK );
89 /* Write that same block of data to output. */
90 WriteAudioStream( aStream, samples, FRAMES_PER_BLOCK );
91 }
92
93 CloseAudioStream( aStream );
94
95 printf("Full duplex sound test complete.\n" );
96 fflush(stdout);
97 return 0;
98
99 error:
100 Pa_Terminate();
101 fprintf( stderr, "An error occured while using the portaudio stream\n" );
102 fprintf( stderr, "Error number: %d\n", err );
103 fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
104 return -1;
105 }

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