public void RenderFrame(VideoFrame frame)
{
// WritableBitmap has to be accessed from a STA thread
Dispatcher.BeginInvoke(new Action(() =>
{
try
{
if (frame.Width != FrameWidth || frame.Height != FrameHeight)
{
FrameWidth = frame.Width;
FrameHeight = frame.Height;
VideoBitmap = new WriteableBitmap(FrameWidth, FrameHeight, 96, 96, PixelFormats.Bgr32, null);
if (Background is ImageBrush)
{
ImageBrush b = (ImageBrush)Background;
b.ImageSource = VideoBitmap;
}
else
{
throw new Exception("Please use an ImageBrush as background in the SampleVideoRenderer control");
}
}
if (VideoBitmap != null)
{
VideoBitmap.Lock();
{
IntPtr[] buffer = { VideoBitmap.BackBuffer };
int[] stride = { VideoBitmap.BackBufferStride };
frame.ConvertInPlace(OpenTok.PixelFormat.FormatArgb32, buffer, stride);
if (EnableBlueFilter)
{
// This is a very slow filter just for demonstration purposes
IntPtr p = VideoBitmap.BackBuffer;
for (int y = 0; y < FrameHeight; y++)
{
for (int x = 0; x < FrameWidth; x++, p += 4)
{
Marshal.WriteInt32(p, Marshal.ReadInt32(p) & 0xff);
}
p += stride[0] - FrameWidth * 4;
}
}
}
VideoBitmap.AddDirtyRect(new Int32Rect(0, 0, FrameWidth, FrameHeight));
VideoBitmap.Unlock();
}
}
finally
{
frame.Dispose();
}
}));
}
public void RenderFrame(VideoFrame frame)
{
// WritableBitmap has to be accessed from a STA thread
Dispatcher.BeginInvoke(new Action(() =>
{
try
{
if (frame.Width != FrameWidth || frame.Height != FrameHeight)
{
FrameWidth = frame.Width;
FrameHeight = frame.Height;
VideoBitmap = new WriteableBitmap(FrameWidth, FrameHeight, 96, 96, PixelFormats.Bgr32, null);
if (Background is ImageBrush)
{
ImageBrush b = (ImageBrush)Background;
b.ImageSource = VideoBitmap;
}
else
{
throw new Exception("Please use an ImageBrush as background in the SampleVideoRenderer control");
}
}
if (VideoBitmap != null)
{
VideoBitmap.Lock();
{
IntPtr[] buffer = { VideoBitmap.BackBuffer };
int[] stride = { VideoBitmap.BackBufferStride };
frame.ConvertInPlace(OpenTok.PixelFormat.FormatArgb32, buffer, stride);
if (DetectingFaces)
{
using (var image = new Image <Bgr, byte>(frame.Width, frame.Height, stride[0], buffer[0]))
{
if (_watch.ElapsedMilliseconds > INTERVAL)
{
var reduced = image.Resize(1.0 / SCALE_FACTOR, Emgu.CV.CvEnum.Inter.Linear);
_watch.Restart();
_images.Add(reduced);
}
}
DrawRectanglesOnBitmap(VideoBitmap, _faces);
}
}
VideoBitmap.AddDirtyRect(new Int32Rect(0, 0, FrameWidth, FrameHeight));
VideoBitmap.Unlock();
}
}
finally
{
frame.Dispose();
}
}));
}
public void RenderFrame(VideoFrame frame)
{
if (frame.Metadata != null)
{
Trace.WriteLine(StreamSourceType + " video frame metadata: " + Encoding.ASCII.GetString(frame.Metadata));
}
// WritableBitmap has to be accessed from a STA thread
Dispatcher.BeginInvoke(new Action(() =>
{
try
{
if (frame.Width != FrameWidth || frame.Height != FrameHeight)
{
FrameWidth = frame.Width;
FrameHeight = frame.Height;
VideoBitmap = new WriteableBitmap(FrameWidth, FrameHeight, 96, 96, PixelFormats.Bgr32, null);
if (Background is ImageBrush)
{
ImageBrush b = (ImageBrush)Background;
b.ImageSource = VideoBitmap;
}
else
{
throw new Exception("Please use an ImageBrush as background in the SampleVideoRenderer control");
}
}
if (VideoBitmap != null)
{
VideoBitmap.Lock();
{
IntPtr[] buffer = { VideoBitmap.BackBuffer };
int[] stride = { VideoBitmap.BackBufferStride };
frame.ConvertInPlace(OpenTok.PixelFormat.FormatArgb32, buffer, stride);
}
VideoBitmap.AddDirtyRect(new Int32Rect(0, 0, FrameWidth, FrameHeight));
VideoBitmap.Unlock();
}
}
finally
{
frame.Dispose();
}
}));
}
public void RenderFrame(VideoFrame frame)
{
if (w != frame.Width || h != frame.Height)
{
Debug.LogFormat("Size changed!, ({0},{1}) => ({2},{3})", w, h, frame.Width, frame.Height);
w = frame.Width; h = frame.Height;
if (buffer[0] != IntPtr.Zero)
{
Marshal.FreeHGlobal(buffer[0]);
}
buffer[0] = Marshal.AllocHGlobal(frame.Width * frame.Height * 4);
strides[0] = frame.Width * 4;
}
frame.ConvertInPlace(PixelFormat.FormatArgb32, buffer, strides);
RenderPlugin.SetRendererFrame(rendererId, buffer[0], frame.Width, frame.Height);
frame.Dispose();
}