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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/soundcard.h>
#include "wav.h"


int play_wav(char *wav_name)
{
    struct WAVhdr_str WAVhdr;
    char *audiobuf;
    int fd, audio, abuf_size, samplesize, stereo, speed, to_read, n;

    if ((audio = open("/dev/dsp", O_WRONLY)) == -1) {
	perror("/dev/dsp");
	return 0;
    }

    if ((fd = open(wav_name, O_RDONLY)) == -1) {
	perror("open");
	return 0;
    }
    read (fd, &WAVhdr, 44); 

    ioctl(audio, SNDCTL_DSP_GETBLKSIZE, &abuf_size);
    audiobuf = malloc(abuf_size);
    samplesize = (int)WAVhdr.bits_per_sample;
    ioctl(audio, SNDCTL_DSP_SAMPLESIZE, &samplesize);
    stereo = (WAVhdr.channels == 2) ? 1 : 0;
    ioctl(audio, SNDCTL_DSP_STEREO, &stereo);
    speed = WAVhdr.samp_rate;
    ioctl(audio, SNDCTL_DSP_SPEED, &speed);

    to_read = WAVhdr.data_length;
    while (to_read) {
	n = (to_read > abuf_size) ? abuf_size : to_read;
	read(fd, audiobuf, n);
	write(audio, audiobuf, n);
	to_read -= n;
    }

    close(audio);
    close(fd);	
    free(audiobuf);
    return 1;
}
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