Add method to get compression settings from encoder

common/rfb/Encoder.h

@@ -54,6 +54,9 @@ namespace rfb {
     virtual void setQualityLevel(int level) {};
     virtual void setFineQualityLevel(int quality, int subsampling) {};
 
+    virtual int getCompressLevel() { return -1; };
+    virtual int getQualityLevel() { return -1; };
+
     // writeRect() is the main interface that encodes the given rectangle
     // with data from the PixelBuffer onto the SConnection given at
     // encoder creation.

common/rfb/TightJPEGEncoder.cxx

@@ -101,6 +101,11 @@ void TightJPEGEncoder::setFineQualityLevel(int quality, int subsampling)
   fineSubsampling = subsampling;
 }
 
+int TightJPEGEncoder::getQualityLevel()
+{
+  return qualityLevel;
+}
+
 void TightJPEGEncoder::writeRect(const PixelBuffer* pb, const Palette& palette)
 {
   const rdr::U8* buffer;

common/rfb/TightJPEGEncoder.h

@@ -35,6 +35,8 @@ namespace rfb {
     virtual void setQualityLevel(int level);
     virtual void setFineQualityLevel(int quality, int subsampling);
 
+    virtual int getQualityLevel();
+
     virtual void writeRect(const PixelBuffer* pb, const Palette& palette);
     virtual void writeSolidRect(int width, int height,
                                 const PixelFormat& pf,