Linux»·¾³ÏÂÓÃcÓïÑÔдµÄ²¥·ÅwavÎļþµÄС³ÌÐò
http://blog.csdn.net/noah1987/archive/2008/10/21/3118934.aspx
±¾³ÌÐò¿ÉÒÔ¶ÁÈ¡.wavÎļþ£¬È»ºó½øÐв¥·Å¡£
ʹÓÃǰ£¬ÇëÈ·ÈÏÄúÊÇ·ñ°²×°ÒôƵÇý¶¯¡£
È·ÈÏ·½·¨£ºcat /etc/sndstat£¬Èç¹ûÏÔʾÎÞ´ËÉ豸£¬ÔòûÓа²×°Çý¶¯¡£
°²×°Çý¶¯ºÜ¼òµ¥£¬µ½oss.comÉÏÏÂÔØÒôƵÇý¶¯£¬È»ºó°´ÕÕÍøÉϵĽ̳̽øÐоͿÉÒÔÁË¡£
Ô´´úÂëÈçÏ£º
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <stdlib.h>
#include <stdio.h>
#include <linux/soundcard.h>
/* ÏÂÃæµÄÈý¸ö²ÎÊýÊǸú¾ßÌåÎļþÏà¹ØµÄ£¬ÎļþʲôÑù£¬¾ÍÒªÉèÖóÉʲôÑù */
#define RATE 11025
#define SIZE 16
#define CHANNELS 1 // 1±íʾµ¥ÉùµÀ£¬2ΪÁ¢ÌåÉù
/* ................ */
unsigned
char
buf[RATE*SIZE/8]; //bufÀïÃæÕýºÃ·ÅÒ»ÃëÖÓµÄÒôƵ£¬ÏÂÃæµÄ¼ÆÊ±»¹ÒªÓÃ
int
main()
{
int
fd;
int
wavfd; //wavÎļþµÄÃèÊö·û
int
arg;
/* ..ioctl..... */
int
status;
/* ........ */
/* ...... */
fd = open(
"/dev/dsp"
, O_RDWR
);
if
(fd < 0) {
printf(
"open of /dev/dsp failed"
);
exit(1);
}
wavfd = open(
"12193767609.wav"
,O_RDONLY);
if
(wavfd < 0) {
printf(
"open of wav failed"
);
 
Ïà¹ØÎĵµ£º
1. HCI²ãÐÒé¸ÅÊö£º
HCIÌṩһÌ×ͳһµÄ·½·¨À´·ÃÎÊBluetoothµ×²ã¡£ÈçͼËùʾ£º
´ÓͼÉÏ¿ÉÒÔ¿´³ö£¬Host Controller Interface(HCI) ¾ÍÊÇÓÃÀ´¹µÍ¨HostºÍModule¡£Hostͨ³£¾ÍÊÇPC£¬ ModuleÔòÊÇÒÔ¸÷ÖÖÎïÀíÁ¬½ÓÐÎʽ£¨USB,serial,pc-cardµÈ£©Á¬½Óµ½PCÉϵÄbluetooth Dongle¡£
ÔÚHostÕâÒ»¶Ë£ºapplication,SDP,L2capµÈÐÒé ......
ÔÚÇ°ÃæÒѾ½éÉܹý£¬£ÃÔ´³ÌÐòÊÇÓɺ¯Êý×é³ÉµÄ¡£ËäÈ»ÔÚÇ°Ãæ¸÷ÕµijÌÐòÖдó¶¼Ö»ÓÐÒ»¸öÖ÷º¯Êýmain()£¬µ«ÊµÓóÌÐòÍùÍùÓɶà¸öº¯Êý×é³É¡£º¯ÊýÊÇ£ÃÔ´³ÌÐòµÄ»ù±¾Ä£¿é£¬Í¨¹ý¶Ôº¯ÊýÄ£¿éµÄµ÷ÓÃʵÏÖÌØ¶¨µÄ¹¦ÄÜ¡££ÃÓïÑÔÖеĺ¯ÊýÏ൱ÓÚÆäËü¸ß¼¶ÓïÑÔµÄ×Ó³ÌÐò¡££ÃÓïÑÔ²»½öÌṩÁ˼«Îª·á¸»µÄ¿âº¯Êý(ÈçTurbo C£¬MS C¶¼ÌṩÁËÈý°Ù¶à¸ö¿âº¯Êý)£¬» ......
Ö¸ÕëÊÇ£ÃÓïÑÔÖй㷺ʹÓõÄÒ»ÖÖÊý¾ÝÀàÐÍ¡£ÔËÓÃÖ¸Õë±à³ÌÊÇ£ÃÓïÑÔ×îÖ÷ÒªµÄ·ç¸ñÖ®Ò»¡£ÀûÓÃÖ¸Õë±äÁ¿¿ÉÒÔ±íʾ¸÷ÖÖÊý¾Ý½á¹¹£»Äܷܺ½±ãµØÊ¹ÓÃÊý×éºÍ×Ö·û´®£»²¢ÄÜÏó»ã±àÓïÑÔÒ»Ñù´¦ÀíÄÚ´æµØÖ·£¬´Ó¶ø±à³ö¾«Á·¶ø¸ßЧµÄ³ÌÐò¡£Ö¸Õ뼫´óµØ·á¸»ÁË£ÃÓïÑԵŦÄÜ¡£Ñ§Ï°Ö¸ÕëÊÇѧϰ£ÃÓïÑÔÖÐ×îÖØÒªµÄÒ»»·£¬ÄÜ·ñÕýÈ·Àí½âºÍʹÓÃÖ¸ÕëÊÇÎÒÃÇÊÇ·ñÕÆÎÕ ......
¡¾Àý10.21¡¿ÓÃÑ¡Ôñ·¨¶Ô10¸öÕûÊýÅÅÐò¡£
main()
{int *p,i,a[10]={3,7,9,11,0,6,7,5,4,2};
printf("The original array:\n");
for(i=0;i<10;i++)
printf("%d,",a[i]);
printf("\n");
p=a;
sort(p,10);
for(p=a,i=0;i<10;i++)
{printf("%d ",*p);p++;}
printf("\n");
}
sort(int x[],int n)
......
Ç°Ãæ½éÉܵĸ÷ÖÖÔËËã¶¼ÊÇÒÔ×Ö½Ú×÷Ϊ×î»ù±¾Î»½øÐеġ£ µ«Ôںܶàϵͳ³ÌÐòÖг£ÒªÇóÔÚλ(bit)Ò»¼¶½øÐÐÔËËã»ò´¦Àí¡££ÃÓïÑÔÌṩÁËλÔËËãµÄ¹¦ÄÜ£¬ÕâʹµÃ£ÃÓïÑÔÒ²ÄÜÏñ»ã±àÓïÑÔÒ»ÑùÓÃÀ´±àдϵͳ³ÌÐò¡£
12.1 λÔËËã·û£ÃÓïÑÔÌṩÁËÁùÖÖλÔËËã·û£º
& °´ ......