private bool CreateWaveStream()
{
OptReturn optReturn;
if (mWaveStream == null)
{
return(false);
}
try
{
WaveStream waveStream = new CustomRateWaveStream(mWaveStream, mRate);
var waveChannel = new SampleChannel(waveStream, true);
var postVolumeMeter = new MeteringSampleProvider(waveChannel);
mSampleProvider = postVolumeMeter;
return(true);
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
return(false);
}
}
private void BtnStop_Click()
{
OptReturn optReturn;
try
{
if (mWaveOut != null &&
mWaveStream != null)
{
TimeSpan ts = mWaveStream.CurrentTime;
mWaveStream.Position = 0;
mWaveOut.Stop();
mTimer.Stop();
LbCurrentTime = "00:00:00";
OnPlayerEventEvent(Defines.EVT_BTN_STOP, ts);
}
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
private void BtnOpen_Click()
{
OptReturn optReturn;
try
{
OpenFileDialog opendDialog = new OpenFileDialog();
opendDialog.Filter = "Wave File(*.wav)|*.wav|MP3 File(*.mp3)|*.mp3|All File(*.*)|*.*";
var result = opendDialog.ShowDialog();
if (result == true)
{
string filePath = opendDialog.FileName;
if (!System.IO.File.Exists(filePath))
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FILE_NOT_EXIST;
optReturn.Message = filePath;
ShowException(optReturn);
return;
}
mUrl = filePath;
Play();
}
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
private void BtnFaster_Click()
{
OptReturn optReturn;
try
{
if (mRate < 5.0)
{
mRate = mRate + 0.1;
}
if (!CreateWaveStream() || !CreateWaveOut())
{
return;
}
if (mWaveOut != null)
{
mWaveOut.Play();
mTimer.Start();
}
LbRate = mRate.ToString("0.0");
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
void BtnSlower_Click(object sender, RoutedEventArgs e)
{
try
{
if (mRate > 0.1)
{
mRate = mRate - 0.1;
}
if (!CreateWaveStream() || !CreateWaveOut())
{
return;
}
if (mWaveOut != null)
{
mWaveOut.Play();
mTimer.Start();
}
LbRate.Content = mRate.ToString("0.0");
}
catch (Exception ex)
{
OptReturn optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
/// <summary>
/// 绘制波形图
/// </summary>
/// <returns></returns>
public OptReturn Draw()
{
OptReturn optReturn = new OptReturn();
optReturn.Result = true;
optReturn.Code = Defines.RET_SUCCESS;
switch (mSourceType)
{
case WaveStreamType.LocalFile:
if (!Path.IsPathRooted(mSrcPath))
{
mSrcPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, mSrcPath);
}
if (!File.Exists(mSrcPath))
{
optReturn.Result = false;
optReturn.Code = Defines.RET_FILE_NOT_EXIST;
optReturn.Message = string.Format("Source wave file not exist.\tpath:{0}", mSrcPath);
return(optReturn);
}
try
{
WaveStream waveStream = new WaveFileReader(File.OpenRead(mSrcPath));
return(Draw(waveStream));
}
catch (Exception ex)
{
optReturn.Result = false;
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
return(optReturn);
}
case WaveStreamType.NetworkStream:
try
{
WaveStream waveStream = new NetWorkWaveReader(mSrcPath);
return(Draw(waveStream));
}
catch (Exception ex)
{
optReturn.Result = false;
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
return(optReturn);
}
default:
optReturn.Result = false;
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = string.Format("Media source type invalid.\t{0}", mSourceType);
return(optReturn);
}
}
public void Play(WaveStream waveStream)
{
OptReturn optReturn;
try
{
var reader = waveStream;
if (reader.WaveFormat.Encoding != WaveFormatEncoding.Pcm &&
reader.WaveFormat.Encoding != WaveFormatEncoding.IeeeFloat)
{
reader = WaveFormatConversionStream.CreatePcmStream(reader);
reader = new BlockAlignReductionStream(reader);
}
if (mWaveStream != null)
{
mWaveStream.Dispose();
}
mWaveStream = reader;
OnPlayerEventEvent(Defines.EVT_MEDIAOPENED, mWaveStream.TotalTime);
if (!CreateWaveImage(mWaveStream))
{
return;
}
LbTotalTime = GetTimeString(mWaveStream.TotalTime);
LbCurrentTime = "00:00:00";
if (mSliderPosition != null)
{
mSliderPosition.Minimum = 0;
mSliderPosition.Maximum = mWaveStream.TotalTime.TotalSeconds;
}
if (!CreateWaveOut())
{
return;
}
if (mWaveOut != null)
{
mWaveOut.Play();
mTimer.Start();
OnPlayerEventEvent(Defines.EVT_PLAYBACKSTARTED, mUrl);
}
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
/// <summary>
/// 使用指定的音频流绘制波形图
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public OptReturn Draw(WaveStream stream)
{
OptReturn optReturn = new OptReturn();
optReturn.Result = true;
optReturn.Code = Defines.RET_SUCCESS;
try
{
WaveStream reader = stream;
reader.Position = 0;
if (reader.WaveFormat.Encoding != WaveFormatEncoding.Pcm && reader.WaveFormat.Encoding != WaveFormatEncoding.IeeeFloat)
{
reader = WaveFormatConversionStream.CreatePcmStream(reader);
reader = new BlockAlignReductionStream(reader);
}
InitDraw();
var waveChannel = new SampleChannel(reader, true);
int samples = (int)(reader.TotalTime.TotalSeconds) * reader.WaveFormat.SampleRate / mPngWidth;
var postVolumeMeter = new MeteringSampleProvider(waveChannel, samples);
postVolumeMeter.StreamVolume += postVolumeMeter_StreamVolume;
var waveProvider = new SampleToWaveProvider(postVolumeMeter);
while (true)
{
byte[] buffer = new byte[waveProvider.WaveFormat.AverageBytesPerSecond];
int readcount = waveProvider.Read(buffer, 0, waveProvider.WaveFormat.AverageBytesPerSecond);
if (readcount <= 0)
{
break;
}
}
stream.Position = 0;
if (mIsSaveFile)
{
return(GenerateImageFile());
}
Bitmap[] bitmaps = new Bitmap[2];
bitmaps[0] = mBitmap;
bitmaps[1] = mBitmap1;
optReturn.Data = bitmaps;
return(optReturn);
}
catch (Exception ex)
{
optReturn.Result = false;
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
return(optReturn);
}
}
void BtnClose_Click(object sender, RoutedEventArgs e)
{
try
{
SubClosing();
SubPlayerEvent(Defines.EVT_BTN_CLOSE, null);
Close();
}
catch (Exception ex)
{
OptReturn optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
void SliderPosition_LostMouseCapture(object sender, MouseEventArgs e)
{
try
{
if (mWaveStream != null)
{
mWaveStream.CurrentTime = TimeSpan.FromSeconds((int)SliderPosition.Value);
}
}
catch (Exception ex)
{
OptReturn optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
private void BtnClose_Click()
{
OptReturn optReturn;
try
{
OnPlayerEventEvent(Defines.EVT_BTN_CLOSE, null);
Close();
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
private bool CreateWaveImage(WaveStream waveStream)
{
OptReturn optReturn;
if (waveStream == null)
{
return(false);
}
try
{
WavePainter wavePainter = new WavePainter();
wavePainter.VolumnNum = 2;
wavePainter.IsSaveFile = false;
optReturn = wavePainter.Draw(waveStream);
if (!optReturn.Result)
{
ShowException(optReturn);
return(false);
}
var data = optReturn.Data as Bitmap[];
if (data != null)
{
var bitmap = data[0];
var imgsource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(bitmap.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
if (mImageLeft != null)
{
mImageLeft.Source = imgsource;
}
bitmap = data[1];
imgsource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(bitmap.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
if (mImageRight != null)
{
mImageRight.Source = imgsource;
}
}
return(true);
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
return(false);
}
}
private OptReturn GenerateImageFile()
{
OptReturn optReturn = new OptReturn();
optReturn.Result = true;
optReturn.Code = Defines.RET_SUCCESS;
try
{
if (string.IsNullOrEmpty(mBitmapPath))
{
optReturn.Result = false;
optReturn.Code = Defines.RET_STRING_EMPTY;
optReturn.Message = string.Format("BitmapPath empty.");
return(optReturn);
}
if (File.Exists(mBitmapPath))
{
File.Delete(mBitmapPath);
}
mBitmap.Save(mBitmapPath);
if (mVolumnNum == 2)
{
if (string.IsNullOrEmpty(mBitmapPath1))
{
optReturn.Result = false;
optReturn.Code = Defines.RET_STRING_EMPTY;
optReturn.Message = string.Format("BitmapPath empty.");
return(optReturn);
}
if (File.Exists(mBitmapPath1))
{
File.Delete(mBitmapPath1);
}
mBitmap1.Save(mBitmapPath1);
}
return(optReturn);
}
catch (Exception ex)
{
optReturn.Result = false;
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
return(optReturn);
}
}
/// <summary>
/// 设定播放位置
/// </summary>
/// <param name="ts"></param>
public void SetPosition(TimeSpan ts)
{
OptReturn optReturn;
try
{
if (mWaveStream != null)
{
mWaveStream.CurrentTime = ts;
}
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
public void SetPosition(TimeSpan ts)
{
OptReturn optReturn;
try
{
int intValue = (int)ts.TotalSeconds;
if (mWaveStream != null)
{
mWaveStream.CurrentTime = TimeSpan.FromSeconds(intValue);
}
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
void BtnPause_Click(object sender, RoutedEventArgs e)
{
try
{
if (mWaveOut != null &&
mWaveStream != null &&
mWaveOut.PlaybackState == PlaybackState.Playing)
{
mWaveOut.Pause();
mTimer.Stop();
}
}
catch (Exception ex)
{
OptReturn optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
void SliderVolume_LostMouseCapture(object sender, MouseEventArgs e)
{
try
{
double value = SliderVolume.Value;
mVolumn = (float)Convert.ToDouble((value / 100).ToString("0.00"));
if (mWaveOut != null)
{
mWaveOut.Volume = mVolumn;
}
LbVolume.Content = mVolumn.ToString("0.0");
}
catch (Exception ex)
{
OptReturn optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
private void BtnPlay_Click()
{
OptReturn optReturn;
try
{
if (mWaveOut != null &&
mWaveStream != null &&
mWaveOut.PlaybackState == PlaybackState.Paused)
{
mWaveOut.Play();
mTimer.Start();
}
else if (mWaveOut != null && mWaveOut.PlaybackState == PlaybackState.Playing)
{
}
else
{
if (mWaveStream != null)
{
//if (!CreateWaveStream() || !CreateWaveOut())
//{
// return;
//}
if (mWaveOut != null)
{
mWaveOut.Play();
mTimer.Start();
}
}
}
OnPlayerEventEvent(Defines.EVT_BTN_PLAY, mUrl);
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
public TimeSpan GetCurrentPosition()
{
OptReturn optReturn;
try
{
if (mWaveStream != null)
{
TimeSpan ts = mWaveStream.CurrentTime;
return(ts);
}
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
return(TimeSpan.FromSeconds(0));
}
private void BtnPause_Click()
{
OptReturn optReturn;
try
{
if (mWaveOut != null &&
mWaveStream != null &&
mWaveOut.PlaybackState == PlaybackState.Playing)
{
mWaveOut.Pause();
mTimer.Stop();
}
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
private bool CreateWaveOut()
{
OptReturn optReturn;
if (mWaveStream == null)
{
return(false);
}
if (mSampleProvider == null)
{
return(false);
}
if (mWaveOut != null)
{
try
{
mWaveOut.Stop();
mWaveOut.Dispose();
mWaveOut = null;
}
catch { }
}
try
{
mWaveOut = new WaveOut();
mWaveOut.PlaybackStopped += mWaveOut_PlaybackStopped;
mWaveOut.Init(new SampleToWaveProvider(mSampleProvider));
mWaveOut.ChannelMode = mChannelMode;
return(true);
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
return(false);
}
}
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);
}
}
void BtnStop_Click(object sender, RoutedEventArgs e)
{
try
{
if (mWaveOut != null &&
mWaveStream != null)
{
TimeSpan ts = mWaveStream.CurrentTime;
mWaveStream.Position = 0;
mWaveOut.Stop();
mTimer.Stop();
LbCurrentTime.Content = "00:00:00";
SubPlayerEvent(Defines.EVT_BTN_STOP, ts);
}
}
catch (Exception ex)
{
OptReturn optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}
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);
}
}
private void ShowException(OptReturn optReturn)
{
Dispatcher.Invoke(new Action(() => OnPlayerEventEvent(Defines.EVT_EXCEPTION, optReturn)));
}
public void Play()
{
OptReturn optReturn;
if (string.IsNullOrEmpty(mUrl))
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_STRING_EMPTY;
optReturn.Message = string.Format(("Url is empty"));
ShowException(optReturn);
return;
}
try
{
WaveStream reader;
if (mUrl.StartsWith("http", StringComparison.InvariantCultureIgnoreCase))
{
if (mUrl.EndsWith(".mp3", StringComparison.InvariantCultureIgnoreCase))
{
reader = new Mp3NetworkStream(mUrl);
}
else
{
reader = new NetWorkWaveReader(mUrl);
if (reader.WaveFormat.Encoding != WaveFormatEncoding.Pcm &&
reader.WaveFormat.Encoding != WaveFormatEncoding.IeeeFloat)
{
reader = WaveFormatConversionStream.CreatePcmStream(reader);
reader = new BlockAlignReductionStream(reader);
}
}
}
else
{
if (mUrl.EndsWith(".mp3", StringComparison.InvariantCultureIgnoreCase))
{
reader = new Mp3FileReader(mUrl);
}
else
{
reader = new WaveFileReader(mUrl);
if (reader.WaveFormat.Encoding != WaveFormatEncoding.Pcm &&
reader.WaveFormat.Encoding != WaveFormatEncoding.IeeeFloat)
{
reader = WaveFormatConversionStream.CreatePcmStream(reader);
reader = new BlockAlignReductionStream(reader);
}
}
}
if (mWaveStream != null)
{
mWaveStream.Dispose();
}
mWaveStream = reader;
OnPlayerEventEvent(Defines.EVT_MEDIAOPENED, mWaveStream.TotalTime);
if (!CreateWaveImage(mWaveStream))
{
return;
}
LbTotalTime = GetTimeString(mWaveStream.TotalTime);
LbCurrentTime = "00:00:00";
if (mSliderPosition != null)
{
mSliderPosition.Minimum = 0;
mSliderPosition.Maximum = mWaveStream.TotalTime.TotalSeconds;
}
if (!CreateWaveStream())
{
return;
}
if (!CreateWaveOut())
{
return;
}
if (mWaveOut != null)
{
mWaveOut.Play();
mTimer.Start();
OnPlayerEventEvent(Defines.EVT_PLAYBACKSTARTED, mUrl);
}
}
catch (Exception ex)
{
optReturn = new OptReturn();
optReturn.Code = Defines.RET_FAIL;
optReturn.Message = ex.Message;
ShowException(optReturn);
}
}