【VC开源代码栏目提醒】:本文主要为网学会员提供AudioCompressDlg.cpp,希望对需要AudioCompressDlg.cpp网友有所帮助,学习一下!
// AudioCompressDlg.cpp : implementation file
//
#include "stdafx.h"
#include "AudioCompress.h"
#include "AudioCompressDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#include "wave.h"
/////////////////////////////////////////////////////////////////////////////
//定义Wave文件格式中数据块结构
typedef struct _rifflist
{
FOURCC fcc;
DWORD cb;
FOURCC fccListType;
} RIFFLIST, * LPRIFFLIST;
typedef struct _riffchunk
{
FOURCC fcc;
DWORD cb;
} RIFFCHUNK, * LPRIFFCHUNK;
typedef struct
{
HACMDRIVERID hadid; //指向HACMDRIVERID的句柄
WORD wFormatTag; //32位无符号整型 格式标签
} FIND_DRIVER_INFO; //结构FIND_DRIVER_INFO包含2个元素:HACMDRIVERID hadid 和WORD wFormatTag
WAVEFORMATEX dstPCM; //目标音频格式
DWORD dstSamples; //目标采样数量
HACMDRIVERID hAcm; //ACM驱动程序句柄
DWORD dstBytes; //压缩后的音频数据大小
//选择目标音频压缩格式
BOOL CALLBACK FormatEnumProc(HACMDRIVERID hadid, LPACMFORMATDETAILS pafd,
DWORD dwInstance, DWORD fdwSupport)
{
if(pafd->dwFormatTag==WAVE_FORMAT_PCM)
{
DWORD sample=pafd->pwfx->nAvgBytesPerSec;
if((sample==44100))
{
dstPCM =*(WAVEFORMATEX*)pafd->pwfx;
hAcm=hadid;
return FALSE;
}
}
return TRUE;
}
BOOL CALLBACK CodecsEnum(HACMDRIVERID hAdid, DWORD dwInstance,DWORD dwSupport)
{
DWORD dwSize = 0;
ACMDRIVERDETAILS acm;
acm.cbStruct = sizeof(acm);
MMRESULT mmr = acmDriverDetails(hAdid, &acm, 0);
HACMDRIVER had = NULL;
mmr = acmDriverOpen(&had,hAdid,0); //打开驱动程序
if (mmr)
{
return FALSE;
}
else
{
mmr = acmMetrics((HACMOBJ)had, ACM_METRIC_MAX_SIZE_FORMAT, &dwSize);
if (dwSize < sizeof(WAVEFORMATEX)) dwSize = sizeof(WAVEFORMATEX);
WAVEFORMATEX* pWaveForm = (WAVEFORMATEX*) malloc(dwSize);
memset(pWaveForm,0,dwSize);
pWaveForm->cbSize = LOWORD(dwSize)- sizeof(WAVEFORMATEX);
pWaveForm->wFormatTag = WAVE_FORMAT_UNKNOWN;
ACMFORMATDETAILS AcmForm;
memset(&AcmForm, 0, sizeof(AcmForm));
AcmForm.cbStruct = sizeof(AcmForm);
AcmForm.pwfx = pWaveForm;
AcmForm.cbwfx = dwSize;
AcmForm.dwFormatTag = WAVE_FORMAT_UNKNOWN;
mmr = acmFormatEnum(had, &AcmForm, FormatEnumProc, 0, 0);
if (mmr||hAcm)
{
return FALSE;
}
free(pWaveForm);
acmDriverClose(had, 0);
}
return TRUE;
}
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CAudioCompressDlg dialog
CAudioCompressDlg::CAudioCompressDlg(CWnd* pParent /*=NULL*/)
: CDialog(CAudioCompressDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CAudioCompressDlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDI_ICON1);
}
void CAudioCompressDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAudioCompressDlg)
DDX_Control(pDX, IDC_SRCFILE, m_SrcFile);
DDX_Control(pDX, IDC_DSTFILE, m_DstFile);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAudioCompressDlg, CDialog)
//{{AFX_MSG_MAP(CAudioCompressDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_SRCBROWN, OnSrcBrown)
ON_BN_CLICKED(IDC_DSTBRWON, OnDstBrown)
ON_BN_CLICKED(IDC_COMPRESS, OnCompress)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CAudioCompressDlg message handlers
BOOL CAudioCompressDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Add "About..." menu item to system menu.
// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
// TODO: Add extra initialization here
return TRUE; // return TRUE unless you set the focus to a control
}
void CAudioCompressDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
void CAudioCompressDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CAudioCompressDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CAudioCompressDlg::OnOK()
{
}
void CAudioCompressDlg::OnSrcBrown()
{
CFileDialog fDlg(TRUE,"","",OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,"波形文件| *.wav");
if (fDlg.DoModal()==IDOK)
{
CString strFile;
strFile = fDlg.GetPathName();
m_SrcFile.SetWindowText(strFile);
}
}
void CAudioCompressDlg::OnDstBrown()
{
CFileDialog fDlg(FALSE,"wav","one",OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,"波形文件|*.wav");
if (fDlg.DoModal()==IDOK)
{
CString strFile;
strFile = fDlg.GetPathName();
DeleteFile(strFile);
m_DstFile.SetWindowText(strFile);
}
}
v
上一篇:
AudioCompress.cpp
下一篇:
个人简历编写四大原则