private (int, int, EventColor, EventColor, float) ParseVideoSettings()
{
int frameTime = 33333; // The amount of time per frame in uS (30 fps = 33333)
int maxFrames; // Max number of frames in the reconstructed video
float fps = framerateCombo.SelectedIndex == 1 ? 60.0f : 30.0f;;
if (realTimeCheckbox.IsChecked == true)
{
frameTime = 33333;
if (framerateCombo.SelectedIndex == 1)
{
frameTime = 33333 / 2;
}
}
else
{
frameTime = Int32.Parse(frameTimeTB.Text);
}
if (allFrameCheckBox.IsChecked == true)
{
maxFrames = 2147483647;
}
else
{
maxFrames = Int32.Parse(maxFramesTB.Text);
}
if (maxFrames <= 0 || frameTime <= 0)
{
throw new FormatException();
}
// Grab ON and OFF colors from comboBox
EventColor onColor = onColorCombo.SelectedItem as EventColor;
EventColor offColor = offColorCombo.SelectedItem as EventColor;
if (onColor.Name == "Custom")
{
// use color picker
// onColor.Color = colorPicker Color
}
if (offColor.Name == "Custom")
{
// use color picker
// offColor.Color = colorPicker Color
}
return(frameTime, maxFrames, onColor, offColor, fps);
}
private (int, int, EventColor, EventColor) ParseFrameSettings()
{
int frameTime = 33333; // The amount of time per frame in uS (30 fps = 33333)
int maxFrames; // Max number of frames in the reconstructed video
if (!playbackType.IsOn)
{
frameTime = Int32.Parse(frameTimeTB.Text);
}
maxFrames = allFrameCheckBox.IsChecked == true ? 2147483647 : Int32.Parse(maxFramesTB.Text);
if (maxFrames <= 0 || frameTime <= 0)
{
throw new FormatException();
}
// Grab ON and OFF colors from comboBox
EventColor onColor = onColorCombo.SelectedItem as EventColor;
EventColor offColor = offColorCombo.SelectedItem as EventColor;
return(frameTime, maxFrames, onColor, offColor);
}
public async Task <MediaComposition> EventBasedReconstruction(Stream aedatFile, CameraParameters cam, EventColor onColor, EventColor offColor, int eventsPerFrame, int maxFrames, float playback_frametime)
{
byte[] aedatBytes = new byte[5 * Convert.ToInt32(Math.Pow(10, 8))]; // Read 0.5 GB at a time
MediaComposition composition = new MediaComposition();
int frameCount = 0;
int eventCount = 0;
Stream pixelStream = InitBitMap(cam);
byte[] currentFrame = new byte[pixelStream.Length];
int bytesRead = aedatFile.Read(aedatBytes, 0, aedatBytes.Length);
while (bytesRead != 0 && frameCount < maxFrames)
{
// Read through AEDAT file
for (int i = 0, length = bytesRead; i < length; i += AedatUtilities.dataEntrySize) // iterate through file, 8 bytes at a time.
{
AEDATEvent currentEvent = new AEDATEvent(aedatBytes, i, cam);
AedatUtilities.SetPixel(ref currentFrame, currentEvent.x, currentEvent.y, (currentEvent.onOff ? onColor.Color : offColor.Color), cam.cameraX);
eventCount++;
if (eventCount >= eventsPerFrame) // Collected events within specified timeframe, add frame to video
{
eventCount = 0;
WriteableBitmap b = new WriteableBitmap(cam.cameraX, cam.cameraY);
using (Stream stream = b.PixelBuffer.AsStream())
{
await stream.WriteAsync(currentFrame, 0, currentFrame.Length);
}
SoftwareBitmap outputBitmap = SoftwareBitmap.CreateCopyFromBuffer(b.PixelBuffer, BitmapPixelFormat.Bgra8, b.PixelWidth, b.PixelHeight, BitmapAlphaMode.Ignore);
CanvasBitmap bitmap2 = CanvasBitmap.CreateFromSoftwareBitmap(CanvasDevice.GetSharedDevice(), outputBitmap);
// Set playback framerate
MediaClip mediaClip = MediaClip.CreateFromSurface(bitmap2, TimeSpan.FromSeconds(playback_frametime));
composition.Clips.Add(mediaClip);
frameCount++;
// Stop adding frames to video if max frames has been reached
if (frameCount >= maxFrames)
{
return(composition);
}
currentFrame = new byte[pixelStream.Length];
}
}
bytesRead = aedatFile.Read(aedatBytes, 0, aedatBytes.Length);
}
return(composition);
}
public async Task EventBasedReconstruction(Stream aedatFile, CameraParameters cam, EventColor onColor, EventColor offColor, int eventsPerFrame, int maxFrames, StorageFolder folder, string fileName)
{
byte[] aedatBytes = new byte[5 * Convert.ToInt32(Math.Pow(10, 8))]; // Read 0.5 GB at a time
int frameCount = 0;
int eventCount = 0;
Stream pixelStream = InitBitMap(cam);
byte[] currentFrame = new byte[pixelStream.Length];
int bytesRead = aedatFile.Read(aedatBytes, 0, aedatBytes.Length);
while (bytesRead != 0 && frameCount < maxFrames)
{
// Read through AEDAT file
for (int i = 0, length = bytesRead; i < length; i += AedatUtilities.dataEntrySize) // iterate through file, 8 bytes at a time.
{
AEDATEvent currentEvent = new AEDATEvent(aedatBytes, i, cam);
AedatUtilities.SetPixel(ref currentFrame, currentEvent.x, currentEvent.y, (currentEvent.onOff ? onColor.Color : offColor.Color), cam.cameraX);
eventCount++;
if (eventCount >= eventsPerFrame) // Collected events within specified timeframe, add frame to video
{
eventCount = 0;
WriteableBitmap b = new WriteableBitmap(cam.cameraX, cam.cameraY);
using (Stream stream = b.PixelBuffer.AsStream())
{
await stream.WriteAsync(currentFrame, 0, currentFrame.Length);
}
var file = await folder.CreateFileAsync(fileName + frameCount + ".png");
using (IRandomAccessStream stream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
BitmapEncoder encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, stream);
Stream pixelStream2 = b.PixelBuffer.AsStream();
byte[] pixels = new byte[pixelStream2.Length];
await pixelStream2.ReadAsync(pixels, 0, pixels.Length);
encoder.SetPixelData(BitmapPixelFormat.Bgra8, BitmapAlphaMode.Ignore,
(uint)b.PixelWidth,
(uint)b.PixelHeight,
96.0,
96.0,
pixels);
await encoder.FlushAsync();
}
frameCount++;
// Stop adding frames to video if max frames has been reached
if (frameCount >= maxFrames)
{
return;
}
currentFrame = new byte[pixelStream.Length];
}
}
bytesRead = aedatFile.Read(aedatBytes, 0, aedatBytes.Length);
}
return;
}
