//protected override bool StartCaptureCore()
//{
// BitmapPool.Instance.Create(InterestRegion.Width, InterestRegion.Height, PixelFormat);
// return playLooper.Start();
//}
//protected override bool StopCaptureCore()
//{
// return playLooper.Stop();
//}
protected override sealed ValueResult <Bitmap> CaptureCore()
{
if (ConnectState != ConnectState.Connected ||
DispatchState != DispatchState.Established)
{
return(ValueResult <Bitmap> .Failed);
}
var bitmap = Pool.WriteLock();
var frame = reader.ReadVideoFrame();
BitmapConverter.ConvertTo(frame, bitmap);
Pool.WriteUnlock(bitmap);
//BitmapStorager.Save(bitmap, DateTime.Now.ToChineseLongFileName() + ".bmp");
bitmap.TimeStamps["CaptureTime"] = DateTime.Now;
var result = new ValueResult <Bitmap>(bitmap);
OnCaptureSuccessed(new ValueEventArgs <Bitmap>(bitmap));
return(result);
}
public void Swap(Bitmap source = null)
{
lock (_threadLock)
{
if (source == null)
{
var sourceStamps = _backgroundBitmap.TimeStamps;
var targetStamps = _foregroundBitmap.TimeStamps;
//source为null时，从背景位图更新前景位图数据
if (sourceStamps["DecodeTime"] > targetStamps["DecodeTime"])
{
BitmapConverter.ConvertTo(_backgroundBitmap, _foregroundBitmap);
targetStamps["CaptureTime"] = sourceStamps["CaptureTime"];
targetStamps["DecodeTime"] = sourceStamps["DecodeTime"];
targetStamps["SwapTime"] = sourceStamps["SwapTime"];
}
}
else
{
var sourceStamps = source.TimeStamps;
var targetStamps = _backgroundBitmap.TimeStamps;
//source不为null时，从解码位图更新背景位图数据
BitmapConverter.ConvertTo(source, _backgroundBitmap);
targetStamps["CaptureTime"] = sourceStamps["CaptureTime"];
targetStamps["DecodeTime"] = sourceStamps["DecodeTime"];
targetStamps["SwapTime"] = DateTime.Now;
}
}
}
protected override void DecodeCore(Bitmap source, Bitmap target)
{
BitmapConverter.ConvertTo(source, target);
}
