private static void DoNativeCompress(FileInfo file, FileInfo output, bool progressive, bool lossless, int quality)
{
var nativeJpegOptimizer = new NativeJpegOptimizer();
nativeJpegOptimizer.CompressFile(file.FullName, output.FullName, progressive, lossless, quality);
output.Refresh();
}
private static void DoNativeCompress(FileInfo file, FileInfo output, bool progressive, bool lossless, int quality)
{
int result = NativeJpegOptimizer.CompressFile(file.FullName, output.FullName, progressive, lossless, quality);
CheckCompressResult(result);
output.Refresh();
}
private static void DoNativeCompress(Stream input, Stream output, bool progressive, bool lossless, int quality)
{
using (StreamWrapper readWrapper = StreamWrapper.CreateForReading(input))
{
using (StreamWrapper writeWrapper = StreamWrapper.CreateForWriting(output))
{
ReadWriteStreamDelegate reader = new ReadWriteStreamDelegate(readWrapper.Read);
ReadWriteStreamDelegate writer = new ReadWriteStreamDelegate(writeWrapper.Write);
var nativeJpegOptimizer = new NativeJpegOptimizer();
nativeJpegOptimizer.CompressStream(reader, writer, progressive, lossless, quality);
}
}
}
private static bool DoCompress(FileInfo file, FileInfo output, bool progressive, bool lossless)
{
int result = NativeJpegOptimizer.Compress(file.FullName, output.FullName, progressive, lossless);
if (result == 1)
{
throw new MagickCorruptImageErrorException("Unable to decompress the jpeg file.");
}
if (result == 2)
{
throw new MagickCorruptImageErrorException("Unable to compress the jpeg file.");
}
if (result != 0)
{
return(false);
}
output.Refresh();
return(true);
}
private static void LosslessCompress(FileInfo file, bool progressive)
{
FileInfo output = new FileInfo(Path.GetTempFileName());
try
{
int result = NativeJpegOptimizer.Optimize(file.FullName, output.FullName, progressive);
if (result == 1)
{
throw new MagickCorruptImageErrorException("Unable to decompress the jpeg file.", null);
}
if (result == 2)
{
throw new MagickCorruptImageErrorException("Unable to compress the jpeg file.", null);
}
if (result != 0)
{
return;
}
output.Refresh();
if (output.Length < file.Length)
{
output.CopyTo(file.FullName, true);
}
file.Refresh();
}
finally
{
FileHelper.Delete(output);
}
}
