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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
#include "esd.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <dirent.h>
#include <sys/stat.h>
#include <limits.h>
#include <string.h>
int main(int argc, char **argv)
{
octet buf[ESD_BUF_SIZE];
int sock = -1, rate = ESD_DEFAULT_RATE;
int length = 0, total = 0, arg = 0;
int bits = ESD_BITS16, channels = ESD_STEREO;
int mode = ESD_STREAM, func = ESD_PLAY;
esd_format_t format = 0;
int half = 0, twice = 0;
signed short* data;
int samp;
FILE *target = NULL;
char *host = NULL;
for ( arg = 1 ; arg < argc ; arg++)
{
if (!strcmp("-h",argv[arg]))
{
printf( "usage:\n" );
printf( "\t%s [-s server ][-b] [-m] [-r freq] [-half|-double] [file]\n",
argv[0]);
exit(0);
}
else if ( !strcmp( "-s", argv[ arg ] ) )
host = argv[ ++arg ];
else if ( !strcmp( "-b", argv[ arg ] ) )
bits = ESD_BITS8;
else if ( !strcmp( "-m", argv[ arg ] ) )
channels = ESD_MONO;
else if ( !strcmp( "-r", argv[ arg ] ) )
{
arg++;
rate = atoi( argv[ arg ] );
} else if (target) {
printf("%s: ignoring extra file '%s'\n", argv[0], argv[arg]);
} else if ( !strcmp( "-half", argv[ arg ] ) ) {
half = 1;
printf( "halving data\n" );
} else if ( !strcmp( "-double", argv[ arg ] ) ) {
twice = 1;
printf( "doubling data\n" );
} else {
target = fopen( argv[arg], "w" );
if (!target) {
printf("%s: couldn't write to '%s'\n", argv[0], argv[arg]);
}
}
}
/*
if ( !target ) {
target = stdout;
}
*/
format = bits | channels | mode | func;
printf( "opening socket, format = 0x%08x at %d Hz\n",
format, rate );
sock = esd_filter_stream( format, rate, host, argv[0] );
if ( sock <= 0 )
return 1;
while ( ( length = read( sock, buf, ESD_BUF_SIZE ) ) > 0 )
{
/* fprintf( stderr, "read %d\n", length ); */
if ( length < 0 )
break;
/* half the data if desired */
if ( half ) {
data = (signed short *) buf;
while ( (octet *) data < buf + length ) {
samp = *data / 2;
*data = samp;
data++;
}
}
/* double the data if desired */
if ( twice ) {
data = (signed short *) buf;
while ( (octet *) data < buf + length ) {
samp = *data * 2;
*data = ( samp > SHRT_MAX ) ? SHRT_MAX : samp;
data++;
}
}
/* share the altered data */
if( target && ( fwrite( buf, 1, length, target ) <= 0 ) )
return 1;
write( sock, buf, length );
printf( "\rtotal bytes streamed: %d", total );
fflush( stdout );
total += length;
}
close( sock );
return 0;
}
|