双缓冲播放,混音.docVIP

#include windows.h #includemmsystem.h #includestdlib.h #includestdio.h #includemath.h #pragma comment(lib,winmm.lib) DWORD CALLBACK waveOutProc(HWAVEOUT hwo,UINT uMsg,DWORD dwInstance,DWORD dwParam1,DWORD dwParam2); DWORD Priority_Handle(DWORD music_Priority,DWORD data_id); DWORD INSERT_MUSIC(short *data1, DWORD data_size, short *data, DWORD data_id); typedef struct ret { DWORD data_size; short *data; }Ret_Value; Ret_Value data2,data3,data4,data5,data6,data7; int n = 0 ; int new_n = 0; int maxn = 0; char *lpdata; DWORD reset = 0; DWORD music_curr_n[6]={0,0,0,0,0,0};//6种音乐当前n为多少 DWORD music_insert_n[6]={0,0,0,0,0,0};//记录何时插入music DWORD music_number[6]={0,0,0,0,0,0};//记录音乐连续播放次数(未播完情况下播放同一首音乐) DWORD Priority[7]={0,0,0,0,0,0,0};//前六个元素记录每首加入音乐的优先级（第一个元素记录第一首音乐的优先级）,第个元素记录同一时刻有几种音乐在插入 DWORD music_Priority[6]={2,1,3,4,5,6};//音乐的优先级 DWORD pertimedata = 960; DWORD data_size1;//背景音乐data数据所占的字节数 #define insert_suc 2 #define insert_fail 3 void main() { HWAVEOUT hWaveOut; FILE *fp1,*fp2,*fp3,*fp4,*fp5,*fp6,*fp7,*fp8; short *data1;//指针指向背景音乐数据 DWORD w,i,j,dwRiffSize; WAVEFORMATEX waveformat; WAVEHDR wavehdr1,wavehdr2; WORD nChannels=0; DWORD nSamplesPerSec=0; DWORD nAvgBytesPerSec=0; WORD nBlockAlign = 0; WORD wBitsPerSample = 0; MMRESULT mr = 0; char id_1[5]=RIFF; char id_2[5]=WAVE; char id_3[5]=fmt ; char id_4[5]=data; // 5个字节存储空间存储RIFF和\0，这个是为方便利用strcmp short format_tag, channels, block_align, bits_per_sample; unsigned long format_length, sample_rate, avg_bytes_sec; // 32位数据 memset(data2, 0 ,sizeof(Ret_Value)); memset(data3, 0 ,sizeof(Ret_Value)); memset(data4, 0 ,sizeof(Ret_Value)); memset(data5, 0 ,sizeof(Ret_Value)); memset(data6, 0 ,sizeof(Ret_Value)); memset(data7, 0 ,sizeof(Ret_Value)); //fmt:数据初始化 format_length=16; format_tag=1; channels= 1; sample_rate =4000; avg_bytes_sec=16000; block_align=2; bits_per_sample=16; w=i=j=0; //读取文件 fp1 = fopen(D:\\My Documents\\学校\\22\\001.wav,rb); fp2 = fopen(D:\\My Documents\\学校\\11\\001.wav,rb)