Xmal:
<Grid MinHeight = "600">
<canvas: CanvasAnimatedControl x: Name = "drawWaveformCanvas" Empate = "DrawWaveformCanvas_Draw" clearColor = "LightGray" />
</ Grid>
xmal.cs:
inseguro vazio ProcessFrameOutput (quadro AudioFrame) privada
{
usando (AudioBuffer tampão = frame.LockBuffer (AudioBufferAccessMode.Write))
utilizando (referência IMemoryBufferReference = buffer.CreateReference ())
{
byte * dataInBytes;
capacityInBytes uint;
((IMemoryBufferByteAccess) de referência) .GetBuffer (fora dataInBytes, fora capacityInBytes);
flutuador * dataInFloat = (float *) dataInBytes;
int dataInFloatLength = (int) buffer.Length / sizeof (flutuador);
para (int i = 0; i <dataInFloatLength; i ++)
{
try
{
waveformFloatData.Add (dataInFloat [i] * 200.0f + 300);
}
Captura
{
}
}
}
}
Void (remetente Microsoft.Graphics.Canvas.UI.Xaml.ICanvasAnimatedControl, Microsoft.Graphics.Canvas.UI.Xaml.CanvasAnimatedDrawEventArgs args) DrawWaveformCanvas_Draw privada
{
flutuador xaxis = 0.0f;
para (int i = 0; i <waveformFloatData.Count; i ++)
{
if (i == 0) continue;
Vector2 point1 = novo Vector2 (XAxis, waveformFloatData [i - 1]);
Vector2 point2 = novo Vector2 (XAxis, waveformFloatData [i]);
args.DrawingSession.DrawLine (point1, point2, Colors.Red, 1F);
XAxis + = 0.3f;
}
WaveformFloatData.Clear ();
}
Captura de tela:
