private void BtnChannelMode_OnClick(object sender, RoutedEventArgs e)
{
if (mChannelMode == WaveOutChannelMode.Default)
{
mChannelMode = WaveOutChannelMode.Left;
BtnChannelMode.Content = "L";
ImgRight.Opacity = 0.5;
ImgLeft.Opacity = 1;
}
else if (mChannelMode == WaveOutChannelMode.Left)
{
mChannelMode = WaveOutChannelMode.Right;
BtnChannelMode.Content = "R";
ImgLeft.Opacity = 0.5;
ImgRight.Opacity = 1;
}
else
{
mChannelMode = WaveOutChannelMode.Default;
BtnChannelMode.Content = "D";
ImgLeft.Opacity = 1;
ImgRight.Opacity = 1;
}
if (mWaveOut != null)
{
mWaveOut.ChannelMode = mChannelMode;
}
}
/// <summary>
/// 实现简易播放器，功能：播放控制，快进快退，音量控制，声道控制以及波形图显示
/// </summary>
public AudioPlayer()
{
InitializeComponent();
Loaded += AudioPlayer_Loaded;
Unloaded += AudioPlayer_Unloaded;
BtnOpen.Click += BtnOpen_Click;
BtnPlay.Click += BtnPlay_Click;
BtnPause.Click += BtnPause_Click;
BtnStop.Click += BtnStop_Click;
BtnSlower.Click += BtnSlower_Click;
BtnFaster.Click += BtnFaster_Click;
BtnChannelMode.Click += BtnChannelMode_Click;
BtnClose.Click += BtnClose_Click;
SliderVolume.LostMouseCapture += SliderVolume_LostMouseCapture;
SliderVolume.MouseUp += SliderVolume_MouseUp;
//SliderPosition.LostMouseCapture += SliderPosition_LostMouseCapture;
SliderPosition.MouseUp += SliderPosition_MouseUp;
SliderPosition.MouseMove += SliderPosition_MouseMove;
mTimer = new Timer();
mTimer.Interval = 100;
mTimer.Elapsed += mTimer_Elapsed;
mRate = 1.0;
mVolumn = 1;
mChannelMode = WaveOutChannelMode.Default;
mState = "11111111111";
}
/// <summary>
/// creates a new wavebuffer
/// </summary>
/// <param name="hWaveOut">WaveOut device to write to</param>
/// <param name="bufferSize">Buffer size in bytes</param>
/// <param name="bufferFillStream">Stream to provide more data</param>
/// <param name="waveOutLock">Lock to protect WaveOut API's from being called on >1 thread</param>
public WaveOutBuffer(IntPtr hWaveOut, Int32 bufferSize, IWaveProvider bufferFillStream, object waveOutLock)
{
this.bufferSize = bufferSize;
buffer = new byte[bufferSize];
hBuffer = GCHandle.Alloc(buffer, GCHandleType.Pinned);
this.hWaveOut = hWaveOut;
waveStream = bufferFillStream;
this.waveOutLock = waveOutLock;
// Added by charley at 2013/4/9
ChannelMode = WaveOutChannelMode.Default;
mVolumnSize = 1;
mLeftVolumn = true;
mVolumnSize = bufferFillStream.WaveFormat.BitsPerSample / 8;
header = new WaveHeader();
hHeader = GCHandle.Alloc(header);
header.dataBuffer = hBuffer.AddrOfPinnedObject();
header.bufferLength = bufferSize;
header.loops = 1;
hThis = GCHandle.Alloc(this);
header.userData = (IntPtr)hThis;
lock (waveOutLock)
{
MmException.Try(WaveInterop.waveOutPrepareHeader(hWaveOut, header, Marshal.SizeOf(header)), "waveOutPrepareHeader");
}
}
/// <summary>
/// 实现简易播放器，功能：播放控制，快进快退，音量控制，声道控制以及波形图显示
/// </summary>
public AudioPlayer()
{
InitializeComponent();
mTimer = new Timer();
mTimer.Interval = 100;
mTimer.Elapsed += mTimer_Elapsed;
mRate = 1.0;
mVolumn = 1;
mChannelMode = WaveOutChannelMode.Default;
mState = "11111111111";
}
void BtnChannelMode_Click(object sender, RoutedEventArgs e)
{
try
{
if (mChannelMode == WaveOutChannelMode.Default)
{
mChannelMode = WaveOutChannelMode.Left;
BtnChannelMode.Content = "L";
ImgRight.Opacity = 0.5;
ImgLeft.Opacity = 1;
}
else if (mChannelMode == WaveOutChannelMode.Left)
{
mChannelMode = WaveOutChannelMode.Right;
BtnChannelMode.Content = "R";
ImgLeft.Opacity = 0.5;
ImgRight.Opacity = 1;
}
else
{
mChannelMode = WaveOutChannelMode.Default;
BtnChannelMode.Content = "D";
ImgLeft.Opacity = 1;
ImgRight.Opacity = 1;
}
if (mWaveOut != null)
{
mWaveOut.ChannelMode = mChannelMode;
}
}
catch (Exception ex)
{
OptReturn optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
private void Init()
{
try
{
mUrl = string.Empty;
mTimer.Interval = 100;
mRate = 1.0;
mChannelMode = WaveOutChannelMode.Default;
State = "11111111111";
Volume = 1;
mIsDraging = false;
Title = string.Empty;
LbRate = mRate.ToString("0.0");
LbVolume = Volume.ToString("0.0");
LbCurrentTime = "00:00:00";
LbTotalTime = "00:00:00";
IsImageLeftVisible = true;
IsImageRightVisible = true;
IsVolumeVisible = true;
}
catch { }
}
private void BtnChannelMode_Click()
{
OptReturn optReturn;
try
{
var btnChannelMode = mListRightButtons.FirstOrDefault(b => b.Name == "ChannelMode");
if (btnChannelMode == null)
{
return;
}
if (mChannelMode == WaveOutChannelMode.Default)
{
mChannelMode = WaveOutChannelMode.Left;
btnChannelMode.Display = "L";
if (mImageLeft != null)
{
mImageLeft.Opacity = 1;
}
if (mImageRight != null)
{
mImageRight.Opacity = 0.5;
}
}
else if (mChannelMode == WaveOutChannelMode.Left)
{
mChannelMode = WaveOutChannelMode.Right;
btnChannelMode.Display = "R";
if (mImageLeft != null)
{
mImageLeft.Opacity = 0.5;
}
if (mImageRight != null)
{
mImageRight.Opacity = 1;
}
}
else
{
mChannelMode = WaveOutChannelMode.Default;
btnChannelMode.Display = "D";
if (mImageLeft != null)
{
mImageLeft.Opacity = 1;
}
if (mImageRight != null)
{
mImageRight.Opacity = 1;
}
}
if (mWaveOut != null)
{
mWaveOut.ChannelMode = mChannelMode;
}
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
