// Save raw debug frame to dump dir, and the following metadata:
// Frame timestamp in micros
// Face detection status
// sensorID , led , projector
public void DumpRawImage(rsid.PreviewImage image)
{
string filename;
var timestamp_available = image.metadata.timestamp != 0;
var prefix = timestamp_available ? $"timestamp_{image.metadata.timestamp}" : $"frame_{image.number}";
if (timestamp_available)
{
uint status = image.metadata.status;
var sensorStr = (image.metadata.sensor_id != 0) ? "right" : "left";
var ledStr = (image.metadata.led) ? "led_on" : "led_off";
var projectorStr = (image.metadata.projector) ? "projector_on" : "projector_off";
filename = $"{prefix}_status_{status}_{sensorStr}_{projectorStr}_{ledStr}{Raw10Extension}";
}
else // metadata isn't valid
{
filename = $"{prefix}{Raw10Extension}";
}
var byteArray = new Byte[image.size];
Marshal.Copy(image.buffer, byteArray, 0, image.size);
var fullPath = Path.Combine(_dumpDir, filename);
using (var fs = new FileStream(fullPath, FileMode.Create, FileAccess.Write))
{
fs.Write(byteArray, 0, byteArray.Length);
}
// clean old dumps every 100 frames
if (image.number % 100 == 0)
{
CleanOldDumps(MaxFrameAge);
}
}
// Handle preview callback.
private void OnPreview(rsid.PreviewImage image, IntPtr ctx)
{
if (image.height < 2)
{
return;
}
Dispatcher.Invoke(() =>
{
var targetWidth = (int)PreviewImage.Width;
var targetHeight = (int)PreviewImage.Height;
//creae writable bitmap if not exists or if image size changed
if (_previewBitmap == null || targetWidth != image.width || targetHeight != image.height)
{
PreviewImage.Width = image.width;
PreviewImage.Height = image.height;
Console.WriteLine($"Creating new WriteableBitmap preview buffer {image.width}x{image.height}");
_previewBitmap = new WriteableBitmap(image.width, image.height, 96, 96, PixelFormats.Bgr24, null);
PreviewImage.Source = _previewBitmap;
LabelPreview.Visibility = Visibility.Collapsed; // Hide preview placeholder once we have first frame
}
Int32Rect sourceRect = new Int32Rect(0, 0, image.width, image.height);
_previewBitmap.WritePixels(sourceRect, image.buffer, image.size, image.stride);
}, DispatcherPriority.Render);
}
public void DumpPreviewImage(rsid.PreviewImage image)
{
using (var bmp = new Bitmap(image.width, image.height, image.stride, System.Drawing.Imaging.PixelFormat.Format24bppRgb, image.buffer))
{
var bmpSrc = ToBitmapSource(bmp);
var timestamp_available = image.metadata.timestamp != 0;
var filename = timestamp_available ? $"timestamp_{image.metadata.timestamp}" : $"frame_{image.number}";
var fullPath = Path.Combine(_dumpDir, filename + ImageExtension);
DumpBitmapImage(bmpSrc, image.metadata, fullPath);
}
// clean old dumps and mark algo images every 900 frames (~1/min on 15 fps)
if (image.number % 900 == 0)
{
CleanOldDumps(MaxFrameAge);
}
}
