使用C语言实现PCM数据混音的完整代码

答：以下是使用C语言实现PCM数据混音的完整代码：#include<stdio.h>
#include<stdlib.h>
#include<string.h>int main(void)
{
int i, j, n, m;
unsigned char *pcm1, *pcm2;
int sample_rate1, sample_rate2, num_samples1, num_samples2;

// 读入PCM数据
pcm1 = read_pcm_data("sample1.pcm", &sample_rate1, &num_samples1);
pcm2 = read_pcm_data("sample2.pcm", &sample_rate2, &num_samples2);

// 计算混音输出样本数量
n = num_samples1;
m = num_samples2;
int sample_count = (n > m ? n : m);

// 混音
for (i = 0; i < sample_count; i++) {
unsigned char sample1 = 0;
if (i < n) {
sample1 = pcm1[i];
}
unsigned char sample2 = 0;
if (i < m) {
sample2 = pcm2[i];
}
unsigned char mix = (sample1 + sample2) / 2;
printf("%c", mix);
}
return 0;
}