1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/*
A cheap command to play sample files to the D/A's.
The sample files should have no headers. They can be
eight or sixteen bits, with one or two channels.
Sample rate is eigher 44.1 or 22.05.
NOTE: samples brought from the VAX may have byte order
reversed. Use "dd conv=swab" to fix this.
William Walker, University of Illinois, 27 January 1989
(walker@m.cs.uiuc.edu)
*/
#include <stdio.h>
#include <sound/sound.h>
#define THESIZE 3000000
#include "args.h"
#define TAG 9839283
main(argc, argv)
char **argv;
{
int srate = SND_RATE_LOW;
int nchannels = 1;
int again = 1;
int i;
SNDSoundStruct *cow;
FILE *data;
ARGLOOP
FLAGARG('h') srate = SND_RATE_HIGH; ENDFLAGARG
FLAGARG('s') nchannels = 2; ENDFLAGARG
STRINGARG('r') srate = atoi(p); ENDSTRINGARG
FLAGARG('o') again = 0; ENDFLAGARG
BADARG
fprintf(stderr, "unknown option %c\n", *p);
goto error;
ENDBADARG
ENDARGLOOP
if (argc != 1) goto error;
cow = (SNDSoundStruct *) malloc(THESIZE);
/* these fields should probably be invariant: */
cow->magic = SND_MAGIC;
cow->dataLocation = sizeof(SNDSoundStruct);
cow->dataSize = 0;
cow->dataFormat = SND_FORMAT_LINEAR_16;
cow->samplingRate = srate;
cow->channelCount = nchannels;
printf("%d Hz sample rate, %d channels\n",
cow->samplingRate,
nchannels);
do {
data = fopen(argv[0],"r");
if (data == NULL) { printf("play: fopen error\n"); exit(1); }
printf("Read %d bytes\n",cow->dataSize = fread((char *)cow+sizeof(SNDSoundStruct),1,THESIZE-sizeof(SNDSoundStruct),data));
fclose(data);
/* printf("Reserve sound for playing (%d)\n",SNDReserve()); */
printf("Play (%d)\n", SNDStartPlaying(cow,TAG,0,0,(SNDNotificationFun)NULL,(SNDNotificationFun)NULL));
printf("Wait for played sound (%d)\n",SNDWait(TAG));
/* printf("Query played sound (%d)\n",SNDQueryPlayedSound()); */
/* printf("Unreserve sound for playing (%d)\n",SNDUnreserveSoundForPlaying()); */
if(again) {
char line[100];
printf("Again? [y] ");
gets(line);
if(line[0] != 'y' && line[0] != 'Y' && line[0] != '\0')
again = 0;
}
} while( again );
exit(0);
error:
fprintf(stderr, "\nUsage: play [ -h ] [ -s ] [ -o ] file\n\n");
fprintf(stderr, " -h 44.1KHz sample rate (default 22.1KHz)\n");
fprintf(stderr, " -s stereo (default mono)\n");
fprintf(stderr, " -o play only once (default asks to play again)\n");
fprintf(stderr, "\n");
exit(1);
}
|
