public ColorFrameBitmap(PlayColorFrame frame)
{
// force population of PixelFormat
var data = frame.GetFrameDataAsync().Result;
_bitmap = new WriteableBitmap(frame.Width, frame.Height, 96, 96, frame.Codec.PixelFormat, null);
_bytes = new byte[_bitmap.PixelWidth * _bitmap.PixelHeight * (_bitmap.Format.BitsPerPixel / 8)];
_dirtyRect = new Int32Rect(0, 0, frame.Width, frame.Height);
}
public void Update(PlayColorFrame frame)
{
if (frame != null)
{
frame.GetFrameDataAsync().ContinueWith(async (pixels) =>
{
await _bitmap.Dispatcher.InvokeAsync(() => {
_bitmap.FromByteArray(pixels.Result);
});
});
}
}
internal static PlayColorFrame FromReader(BinaryReader reader, ICodec codec)
{
var frame = new PlayColorFrame();
frame.FrameType = FrameTypes.Color;
frame.RelativeTime = TimeSpan.FromMilliseconds(reader.ReadDouble());
frame.FrameSize = reader.ReadInt64();
long frameStartPos = reader.BaseStream.Position;
frame.Codec = codec;
frame.Codec.ReadColorHeader(reader, frame);
frame.Stream = reader.BaseStream;
frame.StreamPosition = frame.Stream.Position;
frame.Stream.Position += frame.FrameDataSize;
// Do Frame Integrity Check
var isGoodFrame = false;
try
{
if (reader.ReadString() == PlayFrame.EndOfFrameMarker)
{
isGoodFrame = true;
}
}
catch { }
if (!isGoodFrame)
{
System.Diagnostics.Debug.WriteLine("BAD FRAME...RESETTING");
reader.BaseStream.Position = frameStartPos + frame.FrameSize;
try
{
if (reader.ReadString() != PlayFrame.EndOfFrameMarker)
{
throw new IOException("The recording appears to be corrupt.");
}
return null;
}
catch
{
throw new IOException("The recording appears to be corrupt.");
}
}
return frame;
}
private void colorPlay_FrameArrived(PlayColorFrame frame)
{
if (ColorFrameArrived != null)
ColorFrameArrived(this, new PlayFrameArrivedEventArgs<PlayColorFrame> { Frame = frame });
}
