#define WIN32_LEAN_AND_MEAN
#include <iostream>
#include <iostream>
#include <mmsystem.h>
#include <dsound.h>
using namespace std;
struct ret_value
{
char *data;
unsigned long size;
ret_value()
{
data = 0;
size = 0;
}
};
void load_wave_file(char *fname, struct ret_value *ret)
{
FILE *fp;
fp = fopen(fname,"rb");
if (fp)
{
char id[5]; // 5 个字节存储空间存储'RIFF'和' '，这个是为方便利用 strcmp
unsigned long size; // 存储文件大小
short format_tag, channels, block_align, bits_per_sample; // 16 位数据
unsigned long format_length, sample_rate, avg_bytes_sec, data_size; // 32 位数据
fread(id, sizeof(char), 4, fp); // 读取'RIFF'
id[4] = ' ';
if (!strcmp(id, "RIFF"))
{
fread(&size, sizeof(unsigned long), 1, fp); // 读取文件大小
fread(id, sizeof(char), 4, fp); // 读取'WAVE'
id[4] = ' ';
if (!strcmp(id,"WAVE"))
{
fread(id, sizeof(char), 4, fp); // 读取 4 字节 "fmt ";
fread(&format_length, sizeof(unsigned long),1,fp);
fread(&format_tag, sizeof(short), 1, fp); // 读取文件 tag
fread(&channels, sizeof(short),1,fp); // 读取通道数目
fread(&sample_rate, sizeof(unsigned long), 1, fp); // 读取采样率大小
fread(&avg_bytes_sec, sizeof(unsigned long), 1, fp); // 读取每秒数据量
fread(&block_align, sizeof(short), 1, fp); // 读取块对齐
fread(&bits_per_sample, sizeof(short), 1, fp); // 读取每一样本大小
