53 lines
1.6 KiB
C#
53 lines
1.6 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.IO;
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using System.Text;
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namespace StreamLibrary.src
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{
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public class JpgCompression
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{
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private EncoderParameter parameter;
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private ImageCodecInfo encoderInfo;
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private EncoderParameters encoderParams;
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public JpgCompression(int Quality)
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{
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this.parameter = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)Quality);
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this.encoderInfo = GetEncoderInfo("image/jpeg");
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this.encoderParams = new EncoderParameters(2);
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this.encoderParams.Param[0] = parameter;
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this.encoderParams.Param[1] = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, (long)2);
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}
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public byte[] Compress(Bitmap bmp)
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{
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using (MemoryStream stream = new MemoryStream())
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{
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bmp.Save(stream, encoderInfo, encoderParams);
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return stream.ToArray();
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}
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}
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public void Compress(Bitmap bmp, ref Stream TargetStream)
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{
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bmp.Save(TargetStream, encoderInfo, encoderParams);
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}
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private ImageCodecInfo GetEncoderInfo(string mimeType)
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{
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ImageCodecInfo[] imageEncoders = ImageCodecInfo.GetImageEncoders();
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int num2 = imageEncoders.Length - 1;
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for (int i = 0; i <= num2; i++)
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{
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if (imageEncoders[i].MimeType == mimeType)
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{
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return imageEncoders[i];
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}
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}
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return null;
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}
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}
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}
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