#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <math.h>
#if defined(__OpenBSD__) || defined(__NetBSD__)
#include <soundcard.h>
#else
#include <sys/soundcard.h>
#endif
#include <sys/ioctl.h>
#include <sndfile.h>
#define BUFFER_LEN 4096
int _open_default_oss_device(char **dev_path,int id,int blocking);
int main(int argc,char *argv[])
{
if(argc<2)
return 0;
SF_INFO info;
SNDFILE* file = sf_open(argv[1],SFM_READ,&info);
if(!file)
return 0;
printf("samplerate:%d\n",info.samplerate);
printf("channel:%d\n",info.channels);
char* dsp = NULL;
int dp = _open_default_oss_device(&dsp,0,0);
if(dp < 0)
{
printf("dsp:%d\n",dp);
perror("oss bad:");
sf_close(file);
return -1;
}
int tmp = info.channels;
int ret = ioctl(dp,SNDCTL_DSP_CHANNELS,&tmp);
tmp = info.samplerate;
ret = ioctl(dp,SNDCTL_DSP_SPEED,&tmp);
tmp = AFMT_S16_LE;
ioctl(dp,SNDCTL_DSP_SAMPLESIZE,&tmp);
long len = 0;
short buffer[BUFFER_LEN];
while((len=sf_read_short(file,buffer,BUFFER_LEN))!=0)
{
write(dp,(char*)buffer,len*2);
}
close(dp);
sf_close(file);
free(dsp);
return 0;
}
int _open_default_oss_device(char **dev_path,int id,int blocking)
{
int fd;
char buf[80];
if(id>0)
{
sprintf(buf,"/dev/sound/dsp%d",id);
if(!(*dev_path = strdup(buf)))
return -1;
}
else
{
if(!(*dev_path = strdup("/dev/sound/dsp")))
return -1;
}
#ifdef BROKEN_OSS
fd = open(*dev_path, O_WRONLY | O_NONBLOCK);
#else
fd = open(*dev_path, O_WRONLY);
#endif
if(fd < 0)
{
free(*dev_path);
if(id>0)
{
sprintf(buf,"/dev/dsp%d",id);
if(!(*dev_path = strdup(buf)))
return -1;
}
else
{
if(!(*dev_path = strdup("/dev/dsp")))
return -1;
}
#ifdef BROKEN_OSS
fd = open(*dev_path, O_WRONLY | O_NONBLOCK);
#else
fd = open(*dev_path, O_WRONLY);
#endif
}
#ifdef BROKEN_OSS
if(fd >= 0 && blocking)
{
if(fcntl(fd, F_SETFL, 0) < 0)
{
close(fd);
fd = -1;
}
}
#endif
if(fd < 0)
{
free(*dev_path);
*dev_path = NULL;
}
return fd;
}
只是在的我的ubuntu13.0.4下執行執行 ./text music.wav 會提示錯誤 返回-1 提示 no such directory
在網上搜有人說需要加載snd_pcm_oss modprobe snd_pcm_oss
可我加載的時候提示
FATAL: Module snd_pcm_oss not found.
誰知道這個如何弄？
另外查了下可以加載alsa-oss
之后調用aoss ./text music.wav來播放音樂
可以這個不是我要的，非命令行下不能加這個前綴