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Working on image scaling.

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This commit is contained in:
Jared Goodwin 2019-03-08 16:53:52 -08:00
parent ed0cb0eca3
commit b65014b68e
2 changed files with 21 additions and 15 deletions
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24
Remotely_ScreenCast/Capture/ImageDiff.cs
View File

@ -1,4 +1,5 @@
using System;
using Remotely_ScreenCast.Models;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
@ -17,7 +18,7 @@ namespace Remotely_ScreenCast.Capture
{
Param = new EncoderParameter[]
{
new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 25L),
new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 0L),
new EncoderParameter(System.Drawing.Imaging.Encoder.ColorDepth, 8L)
}
};
@ -94,23 +95,28 @@ namespace Remotely_ScreenCast.Capture
return mergedFrame;
}
public static byte[] EncodeBitmap(Bitmap bitmap)
public static byte[] EncodeBitmap(Bitmap bitmap, Viewer viewer)
{
using (var ms = new MemoryStream())
{
bitmap.Save(ms, CodecInfo, EncoderParams);
var bytes = ms.ToArray();
if (bytes.Length > 200000)
if (bytes.Length > 300000)
{
viewer.Capturer.CaptureFullscreen = true;
var reducedBitmap = (Bitmap)bitmap.Clone();
while (bytes.Length > 200000)
var reductionRatio = (double)300000 / (double)bytes.Length;
using (var ms2 = new MemoryStream())
{
using (var ms2 = new MemoryStream())
reducedBitmap = new Bitmap(reducedBitmap, (int)(reducedBitmap.Width * reductionRatio), (int)(reducedBitmap.Height * reductionRatio));
using (var graphics = Graphics.FromImage(bitmap))
{
reducedBitmap = new Bitmap(reducedBitmap, reducedBitmap.Width / 2, reducedBitmap.Height / 2);
reducedBitmap.Save(ms2, CodecInfo, EncoderParams);
bytes = ms2.ToArray();
graphics.DrawImage(reducedBitmap, 0, 0, bitmap.Width, bitmap.Height);
}
reducedBitmap.Save(ms2, CodecInfo, EncoderParams);
bytes = ms2.ToArray();
}
}

12
Remotely_ScreenCast/Capture/ScreenCaster.cs
View File

@ -91,16 +91,16 @@ namespace Remotely_ScreenCast.Capture
// continue;
//}
if (viewer.NextCaptureDelay > 0)
{
await Task.Delay((int)viewer.NextCaptureDelay);
viewer.NextCaptureDelay = 0;
}
//if (viewer.NextCaptureDelay > 0)
//{
// await Task.Delay((int)viewer.NextCaptureDelay);
// viewer.NextCaptureDelay = 0;
//}
capturer.Capture();
var newImage = ImageDiff.GetImageDiff(capturer.CurrentFrame, capturer.PreviousFrame, capturer.CaptureFullscreen);
var img = ImageDiff.EncodeBitmap(newImage);
var img = ImageDiff.EncodeBitmap(newImage, viewer);
if (capturer.CaptureFullscreen)
{
capturer.CaptureFullscreen = false;