wave底层接口的实现

#include “StdAfx.h“
#include “GWaveIn.h“

GWaveIn::GWaveIn（void）
{
}

GWaveIn::~GWaveIn（void）
{
}

bool GWaveIn::IfWaveIn（）
{
	MMRESULT mmresult = 0;

	mmresult = waveInGetNumDevs（）;
	if（mmresult == 0） return false;

	WAVEINCAPS waveincaps = {0};
	unsigned int i = 0;
	unsigned int num = mmresult;
	for（ ; i	{
		mmresult = waveInGetDevCaps（i&waveincapssizeof（WAVEINCAPS））;
		if（mmresult != MMSYSERR_NOERROR） 
			return false;
		if（（waveincaps.dwFormats & WAVE_FORMAT_1M08） == 0） 
			continue;
		else 
		{
			m_iWaveInID = i;
			return true;
		}
	}

	return false;
}

bool GWaveIn::PrepareWaveIn（HWND hwnd BYTE* pbuf1 BYTE* pbuf2）
{
	WAVEFORMATEX waveformatex = {0};
	waveformatex.wFormatTag = WAVE_FORMAT_PCM;
	waveformatex.nChannels = 1;
	waveformatex.nSamplesPerSec = 11025;
	waveformatex.nAvgBytesPerSec = 11025*1*8/8;
	waveformatex.nBlockAlign = 8*1/8;
	waveformatex.wBitsPerSample = 8;
	waveformatex.cbSize = 0;

	MMRESULT mmresult = 0;
	mmresult = waveInOpen（&m_hWaveInm_iWaveInID&waveformatex（DWORD）hwnd0CALLBACK_WINDOW）;
	if（mmresult != MMSYSERR_NOERROR） return false;

	
	m_head1.lpData = （LPSTR）pbuf1;
	m_head1.dwBufferLength = 20480;
	m_head1.dwBytesRecorded = 0;
	m_head1.dwUser = 0;
	m_head1.dwFlags = 0;
	m_head1.dwLoops = 1;
	m_head1.lpNext = NULL;
	m_head1.reserved = 0;

	mmresult = waveInPrepareHeader（m_hWaveIn&m_head1sizeof（WAVEHDR））;
	if（mmresult != MMSYSERR_NOERROR） return false;

	m_head2.lpData = （LPSTR）pbuf2;
	m_head2.dwBufferLength = 20480;
	m_head2.dwBytesRecorded = 0;
	m_head2.dwUser = 0;
	m_head2.dwFlags = 0;
	m_head2.dwLoops = 1;
	m_head2.lpNext = NULL;
	m_head2.reserved = 0;

	mmresult = waveInPrepareHeader（m_hWaveIn&m_head2sizeof（WAVEHDR））;
	if（mmresult != MMSYSERR_NOERROR） return false;

	return true;
}

bool GWaveIn::AddBuffer（PWAVEHDR pwavehdr）
{
	MMRESULT mmresult = 0;
	mmresult = waveInAddBuffer（m_hWaveInpwavehdrsizeof（WAVEHDR））;
	if（mmresult != MMSYSERR_NOERROR） return false;

	return true;
}

bool GWaveIn::StartRec（）
{
	MMRESULT mmresult = 0;
	mmresult = waveInStart（m_hWaveIn）;
	if（mmresult != MMSYSERR_NOERROR） return false;

	return true;
}

bool GWaveIn::CloseWaveIn（）
{
	MMRESULT mmresult = 0;
	waveInStop（m_hWaveIn）;
	waveInReset（m_hWaveIn）;
	waveInClose（m_hWaveIn）;

	if（m_head1.lpData != NULL） free（m_head1.lpData）;
	waveInUnprepareHeader（m_hWaveIn&m_head1sizeof（WAVEHDR））;

	if（m_head2.lpData != NULL） free（m_head2.lpData）;
	waveInUnprepareHeader（m_hWaveIn&m_head2sizeof（WAVEHDR））;

	return true;
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件    5604864  2016-11-10 15:22  wave底层接口Debugwave底层接口.exe

     文件   13427164  2016-11-10 15:22  wave底层接口Debugwave底层接口.ilk

     文件   22522880  2016-11-10 15:22  wave底层接口Debugwave底层接口.pdb

     文件    1729024  2016-11-10 10:53  wave底层接口Releasewave底层接口.exe

     文件   13896704  2016-11-10 10:53  wave底层接口Releasewave底层接口.pdb

     文件       6260  2016-11-10 15:22  wave底层接口wave底层接口DebugBuildLog.htm

     文件       6656  2016-11-09 14:15  wave底层接口wave底层接口DebugGWave.obj

     文件      13846  2016-11-10 15:22  wave底层接口wave底层接口DebugGWaveIn.obj

     文件      12952  2016-11-10 09:45  wave底层接口wave底层接口DebugGWaveOut.obj

     文件         65  2016-11-10 15:22  wave底层接口wave底层接口Debugmt.dep

     文件     612295  2016-11-09 14:10  wave底层接口wave底层接口Debugstdafx.obj

     文件    1895424  2016-11-10 15:22  wave底层接口wave底层接口Debugvc90.idb

     文件    3182592  2016-11-10 15:22  wave底层接口wave底层接口Debugvc90.pdb

     文件        406  2016-11-09 14:11  wave底层接口wave底层接口Debugwave底层接口.exe.embed.manifest

     文件        472  2016-11-09 14:11  wave底层接口wave底层接口Debugwave底层接口.exe.embed.manifest.res

     文件        381  2016-11-10 15:22  wave底层接口wave底层接口Debugwave底层接口.exe.intermediate.manifest

     文件      25746  2016-11-10 15:22  wave底层接口wave底层接口Debugwave底层接口.obj

     文件   41091072  2016-11-09 14:10  wave底层接口wave底层接口Debugwave底层接口.pch

     文件      79440  2016-11-10 10:22  wave底层接口wave底层接口Debugwave底层接口.res

     文件      79988  2016-11-10 15:22  wave底层接口wave底层接口Debugwave底层接口Dlg.obj

     文件       2601  2016-11-10 09:45  wave底层接口wave底层接口GWaveIn.cpp

     文件        473  2016-11-10 15:22  wave底层接口wave底层接口GWaveIn.h

     文件       2442  2016-11-10 09:45  wave底层接口wave底层接口GWaveOut.cpp

     文件        404  2016-11-10 09:42  wave底层接口wave底层接口GWaveOut.h

     文件       2819  2016-11-09 14:10  wave底层接口wave底层接口ReadMe.txt

     文件       6150  2016-11-10 10:53  wave底层接口wave底层接口ReleaseBuildLog.htm

     文件      34171  2016-11-10 10:46  wave底层接口wave底层接口ReleaseGWaveIn.obj

     文件      33632  2016-11-10 10:46  wave底层接口wave底层接口ReleaseGWaveOut.obj

     文件         65  2016-11-10 10:53  wave底层接口wave底层接口Releasemt.dep

     文件    4530485  2016-11-10 10:46  wave底层接口wave底层接口Releasestdafx.obj

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