基于WaveX低级音频函数的播放音频数据流的程序（C语言）

//Run.c文件
#include <Windows.h>
#include <stdio.h>
#include "mmsystem.h"
#pragma comment(lib, "winmm.lib")

#define BLOCK_SIZE 8192
#define BLOCK_COUNT 20

typedef long LONG_PTR;
typedef unsigned long ULONG_PTR;
typedef ULONG_PTR DWORD_PTR; //解决后续unsigned long type问题

static void CALLBACK waveOutProc(HWAVEOUT hWaveOut , UINT uMsg, DWORD dwInstance, DWORD dwParam1, DWORD dwParam2);
static WAVEHDR* allocateBlocks(int size, int count);
static void freeBlocks(WAVEHDR* blockArray);
static void writeAudio(HWAVEOUT hWaveOut, LPSTR data, int size);

static CRITICAL_SECTION waveCriticalSection;
static WAVEHDR* waveBlocks;
static volatile int waveFreeBlockCount;
static int waveCurrentBlock;

int main(int argc, char* argv[])
{
HWAVEOUT hWaveOut;
HANDLE hFile;
WAVEFORMATEX wfx;
char buffer[1024];
int i;

if(argc != 2)
{
fprintf(stderr, "usage: %s\n", argv[0]);
ExitProcess(1);
}

waveBlocks = allocateBlocks(BLOCK_SIZE, BLOCK_COUNT);
waveFreeBlockCount = BLOCK_COUNT;
waveCurrentBlock= 0;
InitializeCriticalSection(&waveCriticalSection);

if((hFile = CreateFile(
argv[1],
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
0,
NULL
)) == INVALID_HANDLE_VALUE)
{
fprintf(stderr, "%s: unable toopen file '%s'\n", argv[0], argv[1]);
ExitProcess(1);
}

wfx.nSamplesPerSec = 44100;
wfx.wBitsPerSample = 16;
wfx.nChannels= 2;
wfx.cbSize = 0;