private static byte[] GetFrameBytes(CS.VideoSources.Core.VideoFrame frame)
{
Bitmap image = frame.Image;
if (image == null)
{
return((byte[])null);
}
byte[] numArray;
if (image.PixelFormat == PixelFormat.Format8bppIndexed)
{
numArray = JpegCompression.ConvertToJpeg(image, 70);
}
else
{
using (Bitmap bmp = Grayscale.CommonAlgorithms.Y.Apply(image))
numArray = JpegCompression.ConvertToJpeg(bmp, 70);
}
return(numArray);
}
public CommonContracts.VideoFrame GetLastFrameFromDevice(Guid devId, bool deleteFrame)
{
try
{
this._performanceLogger.Info((object)string.Format("Request DevId = {0}", (object)devId));
if (!this.VideoSources.ContainsKey(devId))
{
return((CommonContracts.VideoFrame)null);
}
CS.VideoSources.Core.IVideoSource videoSource = this.VideoSources[devId];
if (!videoSource.IsRunning)
{
return((CommonContracts.VideoFrame)null);
}
using (CS.VideoSources.Core.VideoFrame currentFrame = videoSource.GetCurrentFrame(deleteFrame))
{
if (currentFrame == null)
{
return((CommonContracts.VideoFrame)null);
}
this._performanceLogger.Info((object)string.Format("Response DevId = {0} FrameId = {1}", (object)devId, (object)currentFrame.Index));
byte[] frameBytes = VideoServer.GetFrameBytes(currentFrame);
return(new CommonContracts.VideoFrame()
{
Frame = frameBytes,
FrameIndex = currentFrame.Index,
Date = DateTimeOffset.Now
});
}
}
catch (Exception ex)
{
this._logger.Error((object)ex);
}
return((CommonContracts.VideoFrame)null);
}
