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#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 */
int main(){ int fd; int wavfd; //wavÎļþµÄÃèÊö·û
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"); exit(1); }
/* .......... */ arg = CHANNELS; status = ioctl(fd, SOUND_PCM_WRITE_CHANNELS, &arg); if (status == -1) perror("SOUND_PCM_WRITE_CHANNELS ioctl failed"); if (arg != CHANNELS) perror("unable to set number of channels");
/* ´ÓwavÎļþÖжÁbuf´óСµÄÄÚÈÝ£¬È»ºóдÈë/etc/dspÖУ¬Ö±µ½Îļþ½áÊø */ int time = 0; //¶¯Ì¬ÏÔʾ²¥·Åʱ¼äÓÃ
/*status = ioctl(fd, SOUND_PCM_SYNC, 0);
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