#pragma once
#include <mmsystem.h>
#include <Digitalv.h>
#pragma comment(lib, "winmm.lib")
#define MCI_ERROR 0xFFFFFFFF
#ifndef ERROR_SUCCESS
#define ERROR_SUCCESS 0
#endif
class CPlayer
{
public:
CPlayer(void);
~CPlayer(void);
private:
DWORD m_dwCallBack; //执行的结果
MCIDEVICEID m_mciDeviceID; //播放的ID
private:
MCIERROR OpenFileA(LPCSTR);
public:
MCIERROR OpenFile(LPCTSTR);
MCIERROR Close();
MCIERROR PlayA(LPCSTR);
MCIERROR Play(LPCTSTR);
MCIERROR Play(DWORD dwFrom=MCI_ERROR, DWORD dwTo=MCI_ERROR); //默认值是从当前位置到末尾
MCIERROR Pause();
MCIERROR Seek(DWORD dwTo); //毫秒为单位//Seek之后,播放会停止.
MCIERROR Seek(DWORD dwHr,DWORD dwMn,DWORD dwSc,DWORD dwMl=0); //时分秒毫秒//Seek之后,播放会停止.
MCIERROR Stop();
DWORD GetVolume()const;
MCIERROR AddVolume(int dwVol); //dwVol为负表示减小音量
MCIERROR SetVolume(DWORD dwVol); //0-1000
DWORD GetMusicTimeLength()const;//返回毫秒数
DWORD GetPlayStatus()const;
};
#include "StdAfx.h"
#include "Player.h"
CPlayer::CPlayer(void)
{
m_mciDeviceID = MCI_ERROR;
m_dwCallBack = 0;
}
CPlayer::~CPlayer(void)
{
Close();
}
//打开的文件夹路径
MCIERROR CPlayer::OpenFileA(LPCSTR _szStr)
{
if(0==_szStr)
return MCIERR_INVALID_DEVICE_ID;//Invalid device ID.
MCIERROR mciERR = ERROR_SUCCESS;
MCI_OPEN_PARMSA mciOpen = {0};
mciOpen.lpstrDeviceType = NULL; //文件设备ID
mciOpen.lpstrElementName = _szStr; //存放路径
mciOpen.dwCallback = m_dwCallBack;
mciERR = Close();
if(mciERR)
return mciERR;
mciERR = mciSendCommandA( NULL, MCI_OPEN, MCI_NOTIFY|MCI_OPEN_ELEMENT, (DWORD)&mciOpen);
if (mciERR == ERROR_SUCCESS)
{
m_mciDeviceID = mciOpen.wDeviceID;
{
MCI_SET_PARMS mciOpen = {0};
mciOpen.dwCallback = m_dwCallBack;
mciOpen.dwTimeFormat = MCI_FORMAT_MILLISECONDS;
DWORD dw = mciSendCommandA( m_mciDeviceID, MCI_SET, MCI_NOTIFY|MCI_SET_TIME_FORMAT, (DWORD)&mciOpen);
}
}
return mciERR;
}
MCIERROR CPlayer::OpenFile(LPCTSTR _szStr)
{
return OpenFileA(_szStr);
}
MCIERROR CPlayer::PlayA(LPCSTR _szStr)
{
MCIERROR mciErr=this->OpenFileA(_szStr);
if(mciErr)
return mciErr;
mciErr=this->Play();
return mciErr;
}
MCIERROR CPlayer::Play(LPCTSTR _szStr)
{
return this->PlayA(_szStr);
}
/*
Func:播放
*/
MCIERROR CPlayer::Play(DWORD dwFrom, DWORD dwTo)
{
if(MCI_ERROR == m_mciDeviceID)
return MCIERR_INVALID_DEVICE_ID;//Invalid device ID.
if(GetPlayStatus() == MCI_MODE_PLAY)
return ERROR_SUCCESS;
MCIERROR mciERR = ERROR_SUCCESS;
MCI_PLAY_PARMS mciPlay = {0};
DWORD dwFlag = MCI_NOTIFY;
mciPlay.dwFrom = dwFrom;
mciPlay.dwTo = dwTo;
mciPlay.dwCallback = m_dwCallBack;
if (dwFrom != MCI_ERROR)
dwFlag |= MCI_FROM;
if (dwTo != MCI_ERROR)
dwFlag |= MCI_TO;
mciERR = mciSendCommand( m_mciDeviceID, MCI_PLAY, dwFlag, (DWORD)&mciPlay);
return mciERR;
}
//暂停播放
MCIERROR CPlayer::Pause()
{
if(MCI_ERROR == m_mciDeviceID)
return MCIERR_INVALID_DEVICE_ID;//Invalid device ID.
MCIERROR mciERR = ERROR_SUCCESS;
MCI_GENERIC_PARMS mciPause= {0};
mciPause.dwCallback = m_dwCallBack;
mciERR = mciSendCommand( m_mciDeviceID, MCI_PAUSE, MCI_NOTIFY, (DWORD)&mciPause);
return mciERR;
}
//停止播放
MCIERROR CPlayer::Stop()
{
if(MCI_ERROR == m_mciDeviceID)
return MCIERR_INVALID_DEVICE_ID;//Invalid device ID.
MCIERROR mciERR = ERROR_SUCCESS;
MCI_GENERIC_PARMS mciStop = {0};
mciStop.dwCallback = m_dwCallBack;
mciERR = mciSendCommand( m_mciDeviceID, MCI_STOP, MCI_NOTIFY, (DWORD)&mciStop);
mciERR = mciSendCommand( m_mciDeviceID, MCI_SEEK, MCI_SEEK_TO_START, (DWORD)&mciStop);
return mciERR;
}
/*
Func:取得音量
*/
DWORD CPlayer::GetVolume()const
{
if(MCI_ERROR==m_mciDeviceID)
return 0;//Invalid device ID.
MCI_STATUS_PARMS mciGetVolume = {0};
mciGetVolume.dwCallback = m_dwCallBack;
mciGetVolume.dwItem = MCI_DGV_STATUS_VOLUME;
mciSendCommand( m_mciDeviceID, MCI_STATUS, MCI_NOTIFY|MCI_STATUS_ITEM, (DWORD)&mciGetVolume);
return mciGetVolume.dwReturn;
}
/*
Func:增加音量，dwVol为负表示减小音量
*/
MCIERROR CPlayer::AddVolume(int dwVol)
{
int newVol=(int)GetVolume()+dwVol;
if(newVol<0)
newVol=0;
return SetVolume(newVol);
}
/*
Func:设置音量
*/
MCIERROR CPlayer::SetVolume(DWORD dwVol)
{
//ASSERT_TRUE(m_mci_DID);
if(MCI_ERROR == m_mciDeviceID)
return MCIERR_INVALID_DEVICE_ID;//Invalid device ID.
MCIERROR mciERR = ERROR_SUCCESS;
MCI_DGV_SETAUDIO_PARMS mciSetVolume = {0};
if(dwVol<0)
dwVol=0;
if(dwVol>1000)
dwVol=1000;
mciSetVolume.dwCallback = m_dwCallBack;
mciSetVolume.dwItem = MCI_DGV_SETAUDIO_VOLUME;
mciSetVolume.dwValue = dwVol;
mciERR = mciSendCommand( m_mciDeviceID, MCI_SETAUDIO, MCI_NOTIFY|MCI_DGV_SETAUDIO_ITEM|MCI_DGV_SETAUDIO_VALUE, (DWORD)&mciSetVolume);
return mciERR;
}
/*
Func:关闭
*/
MCIERROR CPlayer::Close()
{
if(m_mciDeviceID != MCI_ERROR)
{
MCIERROR mciERR = ERROR_SUCCESS;
MCI_GENERIC_PARMS mciClose = {0};
mciClose.dwCallback = m_dwCallBack;
mciERR = mciSendCommand( m_mciDeviceID, MCI_CLOSE, MCI_NOTIFY, (DWORD)&mciClose);
if(0==mciERR)
m_mciDeviceID = MCI_ERROR;
return mciERR;
}
else
{
return ERROR_SUCCESS;
}
}
/*
Func:跳转
*/
MCIERROR CPlayer::Seek(DWORD dwTo)//毫秒为单位//Seek之后,播放会停止.
{
if(MCI_ERROR == m_mciDeviceID)
return MCIERR_INVALID_DEVICE_ID;//Invalid device ID.
MCIERROR mciERR = ERROR_SUCCESS;
MCI_SEEK_PARMS mciSeek = {0};
DWORD dwLen = GetMusicTimeLength();
if(dwTo>dwLen)
dwTo = dwLen;
mciSeek.dwCallback = m_dwCallBack;
mciSeek.dwTo = dwTo;
mciERR = mciSendCommand( m_mciDeviceID, MCI_SEEK, MCI_NOTIFY|MCI_TO, (DWORD)&mciSeek);
return mciERR;
}
/*
Func:按照时间跳转
*/
MCIERROR CPlayer::Seek(DWORD dwHr,DWORD dwMn,DWORD dwSc,DWORD dwMl)//时分秒毫秒//Seek之后,播放会停止.
{
DWORD dwTo =dwHr*3600000+dwMn*60000+dwSc*1000+dwMl;
return Seek(dwTo);
}
/*
Func:获取音乐播放时间
*/
DWORD CPlayer::GetMusicTimeLength()const
{
if(MCI_ERROR==m_mciDeviceID)
return 0;
MCI_STATUS_PARMS mciTimeLength = {0};
mciTimeLength.dwCallback = m_dwCallBack;
mciTimeLength.dwItem = MCI_STATUS_LENGTH;
mciSendCommand( m_mciDeviceID, MCI_STATUS, MCI_NOTIFY|MCI_STATUS_ITEM, (DWORD)&mciTimeLength);
return mciTimeLength.dwReturn;
}
/*
Func:获取播放状态
*/
DWORD CPlayer::GetPlayStatus()const
{
if(MCI_ERROR==m_mciDeviceID)
return MCI_MODE_NOT_READY;//Invalid device ID.
MCI_STATUS_PARMS mciStatus = {0};
mciStatus.dwCallback = m_dwCallBack;
mciStatus.dwItem = MCI_STATUS_MODE;
mciSendCommand( m_mciDeviceID, MCI_STATUS, MCI_NOTIFY|MCI_STATUS_ITEM, (DWORD)&mciStatus);
return mciStatus.dwReturn;
}