public void Decompress(IntPtr dataPtr, uint length, IntPtr outputPtr, int outputLength, PixelFormat pixelFormat)
{
int width;
int height;
int stride;
_decompressor.Decompress(dataPtr, length, outputPtr, outputLength, ConvertPixelFormat(pixelFormat),
TJFlags.NONE, out width, out height, out stride);
}
public void DecompressByteArray(
[Values(
PixelFormat.Format32bppArgb,
PixelFormat.Format24bppRgb,
PixelFormat.Format8bppIndexed)] PixelFormat format)
{
foreach (var data in TestUtils.GetTestImagesData("*.jpg"))
{
Assert.DoesNotThrow(() =>
{
var result = _decompressor.Decompress(data.Item2, TestUtils.ConvertPixelFormat(format), TJFlags.NONE);
Assert.NotNull(result);
});
}
}
/// <summary>
/// Updates the preview image with a new preview file from the camera.
/// </summary>
/// <param name="PreviewBitmap">The bitmap that acts as the image source for the preview display</param>
public void UpdatePreview(WriteableBitmap PreviewBitmap)
{
using (CameraFile preview = ActiveCamera.Preview())
using (ILockedFramebuffer bitmapBuffer = PreviewBitmap.Lock())
{
int bitmapBufferSize = bitmapBuffer.Size.Width * bitmapBuffer.Size.Height * 4;
JpegDecoder.Decompress(preview.Data, preview.Size, bitmapBuffer.Address, bitmapBufferSize, TJPixelFormat.BGRA, TJFlags.None, out _, out _, out _);
}
}
public void DecompressByteArray(
[Values(
PixelFormat.Format32bppArgb,
PixelFormat.Format24bppRgb,
PixelFormat.Format8bppIndexed)] PixelFormat format)
{
foreach (var data in TestUtils.GetTestImagesData("*.jpg"))
{
Assert.DoesNotThrow(() =>
{
var result = _decompressor.Decompress(data.Item2, format, TJFlags.NONE);
Assert.NotNull(result);
var file = Path.Combine(OutDirectory, $"{Path.GetFileNameWithoutExtension(data.Item1)}_{format}.bmp");
result.Save(file);
});
}
}
public override double DecodeInBgr(List <byte[]> JList, bool debugInfoIsOn = false)
{
Console.WriteLine();
Console.WriteLine("Converting by libJPEG Turbo to BMP..");
double avgtime = 0;
double delta;
int i = 0;
var decompressor = new TJDecompressor();
foreach (byte[] bitmap in JList)
{
MemoryStream stream = new MemoryStream();
byte[] output = new byte[] { };
int width, height, stride;
DateTime start = DateTime.Now;
output = decompressor.Decompress(output, TJPixelFormats.TJPF_RGB, TJFlags.NONE, out width, out height, out stride);
DateTime finish = DateTime.Now;
delta = (finish - start).TotalMilliseconds;
avgtime += delta;
try
{
using (FileStream file = new FileStream("output\\libjpeg-turbo" + i.ToString() + ".bmp", FileMode.Create, System.IO.FileAccess.Write))
{
file.Write(output, 0, output.Length);
}
if (debugInfoIsOn)
{
Console.WriteLine("Done converting image {0}. Size: {1} x {2}. Time: {3} ms", i, width, height, delta);
}
}
catch (Exception exc)
{
Console.WriteLine("Error while converint: {0}", exc);
}
i++;
}
Console.WriteLine("..done.");
return(avgtime);
}
// Start is called before the first frame update
void Start()
{
TJDecompressor decompressor = new TJDecompressor();
TJCompressor compressor = new TJCompressor();
byte[] compressedImage = File.ReadAllBytes("Assets/Images/image.jpg");
float startTime = Time.realtimeSinceStartup;
DecompressedImage decompressedImage = decompressor.Decompress(compressedImage, TJPixelFormat.RGBA, TJFlags.None);
Debug.Log("Image decompressed. Execution time : " + (Time.realtimeSinceStartup - startTime).ToString() + " secondes.");
startTime = Time.realtimeSinceStartup;
byte[] recompressedImage = compressor.Compress(decompressedImage.Data, decompressedImage.Stride, decompressedImage.Width, decompressedImage.Height, decompressedImage.PixelFormat, TJSubsamplingOption.Chrominance420, 92, TJFlags.None);
Debug.Log("Image recompressed. Execution time : " + (Time.realtimeSinceStartup - startTime).ToString() + " secondes.");
File.WriteAllBytes("Assets/Images/recompressedImage.jpg", recompressedImage);
Debug.Log("Recompressed image saved at : Assets/Images/recompressedImage.jpg");
;
}