diff --git a/src/lib/eyd_compressor_rle2.cpp b/src/lib/eyd_compressor_rle2.cpp
new file mode 100644
index 0000000..590d3ad
--- /dev/null
+++ b/src/lib/eyd_compressor_rle2.cpp
@@ -0,0 +1,58 @@
+
+#include "eyd_compressor_rle2.hh"
+
+namespace EydLib {
+
+	/*
+	class BitCompressorRle2 {
+		private:
+			BitGroup _last_group;
+			int _last_count;
+			std::list<BitGroup> _compressed;
+
+		public:
+			BitCompressorRle2();
+
+			void clear();
+			void append(BitGroup bg);
+			std::list<BitGroup> flush();
+			bool hasContent();
+	};
+	*/
+
+	BitCompressorRle2::BitCompressorRle2() {
+		_last_count = 0;
+		_compressed.clear();
+	}
+
+	void BitCompressorRle2::clear(){
+		// we clear everything
+		_last_count = 0;
+		_compressed.clear();
+	}
+
+	void BitCompressorRle2::appendBit(bool bit){
+
+	}
+
+	void BitCompressorRle2::append(BitGroup data){
+		// take the data and make it smaller...
+		// foreach bit of data, append it...
+		for (int i=0; i<data.size(); i++){
+			this->appendBit(data.getBitAt(i));
+		}
+	}
+
+	std::list<BitGroup> BitCompressorRle2::flush(){
+		// we add the data from _last* to the outlist
+		std::list<BitGroup> result;
+		result = _compressed;
+		_compressed.clear();
+		return result;
+	}
+
+	bool BitCompressorRle2::hasContent(){
+		return (!_compressed.empty());
+	}
+}
+
diff --git a/src/lib/eyd_compressor_rle2.hh b/src/lib/eyd_compressor_rle2.hh
new file mode 100644
index 0000000..a00aeaf
--- /dev/null
+++ b/src/lib/eyd_compressor_rle2.hh
@@ -0,0 +1,42 @@
+#ifndef _EYD_BITCOMPRESSOR_RLE2_HH
+#define _EYD_BITCOMPRESSOR_RLE2_HH
+
+#include <string>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <exception>
+
+#include "eyd_bitgroup.hh"
+
+#include "eyd_global.hh"
+#include "eyd_iface.hh"
+
+
+namespace EydLib {
+
+	class BitCompressorRle2 {
+		private:
+			BitGroup _rle;
+			BitGroup _last_group;
+			int _last_count;
+			int _group_size;
+			std::list<BitGroup> _compressed;
+
+			void BitCompressorRle2::appendBit(bool bit);
+
+		public:
+			BitCompressorRle2::BitCompressorRle2();
+
+			void clear();
+			void append(BitGroup bg);
+			std::list<BitGroup> flush();
+			bool hasContent();
+
+			void flushRleData();
+			void flushRawData();
+
+	};
+}
+
+#endif
diff --git a/src/lib/eyd_uncompressor_rle2.cpp b/src/lib/eyd_uncompressor_rle2.cpp
new file mode 100644
index 0000000..0f2aef6
--- /dev/null
+++ b/src/lib/eyd_uncompressor_rle2.cpp
@@ -0,0 +1,86 @@
+
+#include "eyd_uncompressor_rle2.hh"
+
+namespace EydLib {
+
+	/*
+	   class BitUncompressorRle2 {
+	   private:
+	   BitGroup _last_group;
+	   int _last_count;
+	   std::list<BitGroup> _uncompressed;
+
+	   public:
+	   BitUncompressorRle2();
+
+	   void clear();
+	   void append(BitGroup bg);
+	   std::list<BitGroup> flush();
+	   bool hasContent();
+	   };
+	   */
+
+	BitUncompressorRle2::BitUncompressorRle2() {
+		_last_count = 0;
+		_status = UNCOMPRESSOR_RLE2_STATUS_NORMAL;
+	}
+
+	void BitUncompressorRle2::clear(){
+		// we clear everything
+		_last_count = 0;
+		_uncompressed.clear();
+	}
+
+	void BitUncompressorRle2::append(BitGroup data){
+		switch (_status){
+			case UNCOMPRESSOR_RLE2_STATUS_NORMAL: 
+				printf("STATUS NORMAL : %s\n", data.toString().c_str());
+				if (data == _rle){
+					// on change le status et on n'écrit rien
+					_status = UNCOMPRESSOR_RLE2_STATUS_GOTRLE;
+				} else {
+					// on écrit directement le resultat non décompressé	
+					_uncompressed.push_back(data);
+				}
+				break;
+			case UNCOMPRESSOR_RLE2_STATUS_GOTRLE:
+				printf("STATUS GOT RLE : %s\n", data.toString().c_str() );
+				if (data == _rle){
+					// deux RLE c'est 1 RLE 
+					// on écrit juste un RLE
+					_uncompressed.push_back(data);
+					_status = UNCOMPRESSOR_RLE2_STATUS_NORMAL;
+				} else {
+					// un RLE et un différent c'est une longueur
+					// sauf si égal à 1 ou 2
+					_status = UNCOMPRESSOR_RLE2_STATUS_GOTLEN; // sauf si égal à RLE
+					_last_count = data.getValue(); // on stocke la value
+				}
+				break;
+			case UNCOMPRESSOR_RLE2_STATUS_GOTLEN:
+				printf("STATUS GOT LEN : %s\n", data.toString().c_str() );
+				// ce qu'on lit est la valeur
+				// on écrit donc _last_count fois data
+				for (int i=0; i<_last_count; i++){
+					_uncompressed.push_back(data);
+				}
+				_status = UNCOMPRESSOR_RLE2_STATUS_NORMAL;
+				_last_count = 0;
+				break;
+
+		}
+	}
+
+	std::list<BitGroup> BitUncompressorRle2::flush(){
+		// we add the data from _last* to the outlist
+		std::list<BitGroup> result;
+		result = _uncompressed;
+		_uncompressed.clear();
+		return result;
+	}
+
+	bool BitUncompressorRle2::hasContent(){
+		return (!_uncompressed.empty());
+	}
+}
+
diff --git a/src/lib/eyd_uncompressor_rle2.hh b/src/lib/eyd_uncompressor_rle2.hh
new file mode 100644
index 0000000..b99959a
--- /dev/null
+++ b/src/lib/eyd_uncompressor_rle2.hh
@@ -0,0 +1,45 @@
+#ifndef _EYD_BITUNCOMPRESSOR_RLE2_HH
+#define _EYD_BITUNCOMPRESSOR_RLE2_HH
+
+#include <string>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <exception>
+
+#include "eyd_bitgroup.hh"
+
+#include "eyd_global.hh"
+#include "eyd_iface.hh"
+
+
+namespace EydLib {
+	typedef enum {
+		UNCOMPRESSOR_RLE2_STATUS_NORMAL, 
+		UNCOMPRESSOR_RLE2_STATUS_GOTLEN, 
+		UNCOMPRESSOR_RLE2_STATUS_GOTRLE} 
+	uncompressorRle2_status_t;
+
+	class BitUncompressorRle2 {
+		private:
+			BitGroup _rle;
+			int _last_count;
+			int _group_size;
+			std::list<BitGroup> _uncompressed;
+			uncompressorRle2_status_t _status;
+
+		public:
+			BitUncompressorRle2::BitUncompressorRle2();
+
+			void clear();
+			void append(BitGroup bg);
+			std::list<BitGroup> flush();
+			bool hasContent();
+
+			void flushRleData();
+			void flushRawData();
+
+	};
+}
+
+#endif