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lib.cpp
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lib.cpp
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#include <QDebug>
#include "config.h"
#include "lib.h"
#include <alsa/asoundlib.h>
int debugLevel = 0;
void PDEBUG (int Level, const char *Format, ... ) {
//#ifndef QT_NO_DEBUG
va_list ap;
char s[64*1024];
va_start(ap, Format);
if (debugLevel >= Level) {
vsprintf(s,Format,ap);
qDebug() << s;
}
va_end(ap);
//#endif
}
#ifndef QT_NO_DEBUG
static void bin2hex(const unsigned char *from, int len, char *to) {
int i;
for (i=0;i<len;i++)
sprintf (to+2*i, "%02x", from[i]);
}
#endif
void PDEBUGBUF (int Level, const char *comment, unsigned char *buf, unsigned int len) {
#ifndef QT_NO_DEBUG
#define LINELEN 128
char s[LINELEN+1];
int l=LINELEN/2;
unsigned int pos=0;
if (debugLevel >= Level) {
qDebug(comment);
while(pos<len) {
if (pos+l>len)
l=len-pos;
bin2hex(buf+pos, l, s);
s[l*2]=0;
qDebug() << s;
pos+=l;
}
}
#endif
}
int ParityBit(unsigned int in)
{
qDebug() << "in:" << in;
int bits=0;
while(in) {
if (in & 1)
bits++;
in/=2;
}
qDebug() << bits;
return bits & 1;
}
QStringList getAlsaAudioDevices() {
QStringList list;
char **hints;
int err = snd_device_name_hint(-1, "pcm", (void***)&hints);
if (err != 0)
return list;
char** n = hints;
while (*n != NULL) {
char *name = snd_device_name_get_hint(*n, "NAME");
if (name != NULL && 0 != strcmp("null", name)) {
list += QString(name);
free(name);
}
n++;
}
snd_device_name_free_hint((void**)hints);
return list;
}
int min(int a, int b) {
if (a>b)
return b;
return a;
}
unsigned char min(unsigned char a, unsigned char b) {
if (a>b)
return b;
return a;
}
unsigned char max(unsigned char a, unsigned char b) {
if (a<b)
return b;
return a;
}