diff --git a/app/genericProcessor/genericProcessor.cpp b/app/genericProcessor/genericProcessor.cpp
index 9083426f..da67d7a8 100644
--- a/app/genericProcessor/genericProcessor.cpp
+++ b/app/genericProcessor/genericProcessor.cpp
@@ -8,6 +8,12 @@
 #include <sstream>
 #include <cstdlib>
 
+static const size_t dummyWidth = 1920;
+static const size_t dummyHeight = 1080;
+static const std::string dummyPixelFormat = "yuv420p";
+static const std::string dummyVideoCodec = "mpeg2video";
+static const std::string dummyAudioCodec = "pcm_s16le";
+
 // bool verbose = false;
 bool verbose = true;
 
@@ -47,9 +53,27 @@ void parseConfigFile( const std::string& configFilename, avtranscoder::Transcode
 					std::cout << ( transcodeProfile.length() ? transcodeProfile : "rewrap" );
 					std::cout << std::endl;
 				}
-
-				transcoder.add( filename, streamIndex, subStreamIndex, transcodeProfile );
-
+				
+				// dummy stream, need a CodedDesc (audio or video)
+				if( ! filename.length() )
+				{
+					// video
+					avtranscoder::VideoFrameDesc imageDesc;
+					imageDesc.setWidth( dummyWidth );
+					imageDesc.setHeight( dummyHeight );
+					imageDesc.setDar( dummyWidth, dummyHeight );
+					avtranscoder::Pixel inputPixel( dummyPixelFormat );
+					imageDesc.setPixel( inputPixel );
+
+					avtranscoder::VideoDesc inputVideoDesc( dummyVideoCodec );
+					inputVideoDesc.setImageParameters( imageDesc );
+					
+					transcoder.add( filename, streamIndex, subStreamIndex, transcodeProfile, inputVideoDesc );
+				}
+				else
+				{
+					transcoder.add( filename, streamIndex, subStreamIndex, transcodeProfile );
+				}
 			}
 		}
 	}
@@ -85,6 +109,7 @@ int main( int argc, char** argv )
 
 		avtranscoder::Transcoder transcoder( outputFile );
 		transcoder.setVerbose( verbose );
+		transcoder.setProcessMethod( avtranscoder::eProcessMethodShortest );
 
 		if( verbose )
 			std::cout << "parse config file" << std::endl;
diff --git a/src/AvTranscoder/Transcoder/Transcoder.cpp b/src/AvTranscoder/Transcoder/Transcoder.cpp
index 9fb8bb6a..676db7cb 100644
--- a/src/AvTranscoder/Transcoder/Transcoder.cpp
+++ b/src/AvTranscoder/Transcoder/Transcoder.cpp
@@ -5,6 +5,11 @@ namespace avtranscoder
 
 Transcoder::Transcoder( OutputFile& outputFile )
 	: _outputFile( outputFile )
+	, _inputFiles()
+	, _inputStreams()
+	, _streamTranscoders()
+	, _dummyAudio()
+	, _dummyVideo()
 	, _profile( true )
 	, _finalisedStreams( 0 )
 	, _eProcessMethod ( eProcessMethodLongest )
@@ -47,6 +52,27 @@ void Transcoder::add( const std::string& filename, const size_t streamIndex, con
 	add( filename, streamIndex, transcodeProfile );
 }
 
+void Transcoder::add( const std::string& filename, const size_t streamIndex, const std::string& profileName, CodedDesc& essenceDesc )
+{
+	if( profileName.length() == 0 ) // no profile, only re-wrap stream
+	{
+		if( _verbose )
+			std::cout << "add re-wrap stream" << std::endl;
+		
+		if( filename.length() == 0 )
+		{
+			std::cerr << "can't add a dummy stream with no profileName indicated" << std::endl;
+			return;
+		}
+		
+		addRewrapStream( filename, streamIndex );
+		return;
+	}
+	
+	Profile::ProfileDesc& transcodeProfile = _profile.getProfile( profileName );
+	add( filename, streamIndex, transcodeProfile, essenceDesc );
+}
+
 void Transcoder::add( const std::string& filename, const size_t streamIndex, Profile::ProfileDesc& profileDesc )
 {
 	_profile.update( profileDesc );
@@ -99,6 +125,33 @@ void Transcoder::add( const std::string& filename, const size_t streamIndex, con
 	add( filename, streamIndex, subStreamIndex, transcodeProfile );
 }
 
+void Transcoder::add( const std::string& filename, const size_t streamIndex, const int subStreamIndex, const std::string& profileName, CodedDesc& essenceDesc )
+{
+	if( subStreamIndex < 0 )
+	{
+		add( filename, streamIndex, profileName, essenceDesc );
+		return;
+	}
+	
+	if( profileName.length() == 0 ) // no profile, only re-wrap stream
+	{
+		if( _verbose )
+			std::cout << "add re-wrap stream for substream " << subStreamIndex << std::endl;
+
+		if( filename.length() == 0 )
+		{
+			std::cerr << "can't add a dummy stream with no profileName indicated" << std::endl;
+			return;
+		}
+		
+		addRewrapStream( filename, streamIndex );
+		return;
+	}
+
+	Profile::ProfileDesc& transcodeProfile = _profile.getProfile( profileName );
+	add( filename, streamIndex, subStreamIndex, transcodeProfile, essenceDesc );
+}
+
 void Transcoder::add( const std::string& filename, const size_t streamIndex, const int subStreamIndex, Profile::ProfileDesc& profileDesc )
 {
 	_profile.update( profileDesc );
diff --git a/src/AvTranscoder/Transcoder/Transcoder.hpp b/src/AvTranscoder/Transcoder/Transcoder.hpp
index 08f815b3..2bfdffba 100644
--- a/src/AvTranscoder/Transcoder/Transcoder.hpp
+++ b/src/AvTranscoder/Transcoder/Transcoder.hpp
@@ -23,6 +23,12 @@
 namespace avtranscoder
 {
 
+/**
+ * @brief: Enum to set a policy of how we manage the transcode in case of several streams.
+ * eProcessMethodShortest: stop transcode at the end of the shortest stream.
+ * eProcessMethodLongest: stop transcode at the end of the longest stream (default method).
+ * eProcessMethodInfinity: stop transcode by outside of avTranscoder.
+ */
 enum EProcessMethod
 {
 	eProcessMethodShortest = 0,
@@ -43,6 +49,11 @@ class Transcoder
 	 * @note If profileName is empty, rewrap.
 	 */
 	void add( const std::string& filename, const size_t streamIndex, const std::string& profileName = "" );
+	/*
+	 * @note If filename is empty, add a dummy stream.
+	 * @note If filename is empty, profileName can't be empty (no sens to rewrap a dummy stream).
+	 */
+	void add( const std::string& filename, const size_t streamIndex, const std::string& profileName, CodedDesc& essenceDesc );
 
 	/**
 	 * @brief Add a stream and set a custom profile
@@ -60,6 +71,11 @@ class Transcoder
 	 * @note If subStreamIndex is negative, no substream is selected it's the stream. 
 	 */
 	void add( const std::string& filename, const size_t streamIndex, const int subStreamIndex, const std::string& profileName = "" );
+	/**
+	 * @note If filename is empty, add a dummy stream.
+	 * @note If filename is empty, profileName can't be empty (no sens to rewrap a dummy stream).
+	 */
+	void add( const std::string& filename, const size_t streamIndex, const int subStreamIndex, const std::string& profileName, CodedDesc& essenceDesc );
 
 	/**
 	 * @brief Add a stream and set a custom profile