diff --git a/src/AvTranscoder/avTranscoder.i b/src/AvTranscoder/avTranscoder.i
index fe9db742..8b2ec56a 100644
--- a/src/AvTranscoder/avTranscoder.i
+++ b/src/AvTranscoder/avTranscoder.i
@@ -17,18 +17,17 @@
 %include "AvTranscoder/swig/avOperator.i"
 
 %{
-#include <AvTranscoder/Library.hpp>
 #include <AvTranscoder/log.hpp>
 %}
 
 %include "AvTranscoder/progress/progress.i"
 %include "AvTranscoder/properties/properties.i"
-%include "AvTranscoder/data/data.i"
 %include "AvTranscoder/profile/profile.i"
+%include "AvTranscoder/data/data.i"
 
-%include <AvTranscoder/Library.hpp>
 %include <AvTranscoder/log.hpp>
 
+%include "AvTranscoder/library.i"
 %include "AvTranscoder/option.i"
 %include "AvTranscoder/util.i"
 %include "AvTranscoder/codec/codec.i"
diff --git a/src/AvTranscoder/library.i b/src/AvTranscoder/library.i
new file mode 100644
index 00000000..019b906c
--- /dev/null
+++ b/src/AvTranscoder/library.i
@@ -0,0 +1,15 @@
+%{
+#include <AvTranscoder/Library.hpp>
+%}
+
+namespace std {
+// Allow vector of object with no default constructor
+%ignore vector< avtranscoder::Library >::vector(size_type); 
+%ignore vector< avtranscoder::Library >::resize;
+
+// Create instantiations of a template classes
+%template(Libraries) vector< avtranscoder::Library >;
+%template(IntVector) vector< size_t >;
+}
+
+%include <AvTranscoder/Library.hpp>
diff --git a/src/AvTranscoder/option.i b/src/AvTranscoder/option.i
index ff550d2e..4abeb1ad 100644
--- a/src/AvTranscoder/option.i
+++ b/src/AvTranscoder/option.i
@@ -9,7 +9,7 @@ namespace std {
 
 // Create instantiations of a template classes
 %template(OptionArray) vector< avtranscoder::Option >;
-%template(IntPair) pair< size_t, size_t >;
+%template(IntPair) pair< int, int >;
 }
 
 %include <AvTranscoder/Option.hpp>
diff --git a/src/AvTranscoder/properties/properties.i b/src/AvTranscoder/properties/properties.i
index e80e70ce..00cbaeaa 100644
--- a/src/AvTranscoder/properties/properties.i
+++ b/src/AvTranscoder/properties/properties.i
@@ -46,6 +46,9 @@ namespace std {
 %template(ChannelVector)   vector< avtranscoder::Channel >;
 }
 
+%include <AvTranscoder/file/util.hpp>
+%include <AvTranscoder/file/FormatContext.hpp>
+
 %include <AvTranscoder/properties/util.hpp>
 %include <AvTranscoder/properties/FileProperties.hpp>
 %include <AvTranscoder/properties/PixelProperties.hpp>
diff --git a/src/AvTranscoder/transcoder/transcoder.i b/src/AvTranscoder/transcoder/transcoder.i
index 3b934ab7..ffb1eedd 100644
--- a/src/AvTranscoder/transcoder/transcoder.i
+++ b/src/AvTranscoder/transcoder/transcoder.i
@@ -3,5 +3,7 @@
 #include <AvTranscoder/transcoder/Transcoder.hpp>
 %}
 
+%template(StreamTranscoderVector) std::vector< avtranscoder::StreamTranscoder* >;
+
 %include <AvTranscoder/transcoder/StreamTranscoder.hpp>
 %include <AvTranscoder/transcoder/Transcoder.hpp>
diff --git a/test/pyTest/testLibrary.py b/test/pyTest/testLibrary.py
new file mode 100644
index 00000000..f7c812b9
--- /dev/null
+++ b/test/pyTest/testLibrary.py
@@ -0,0 +1,33 @@
+from nose.tools import *
+
+from pyAvTranscoder import avtranscoder as av
+
+
+def testListLibraries():
+    """
+    Check name and license of libraries.
+    """
+    librariesName = set(["avtranscoder", "avutil", "avformat", "avcodec", "avresample", "swresample", "swscale", "avfilter"])
+
+    for library in av.getLibraries():
+        libraryName = library.getName()
+        if libraryName == "avtranscoder":
+            assert_equals(library.getLicense(), "GPL v2 or LGPL v2.1")
+        assert_in(libraryName, librariesName)
+        librariesName.remove(libraryName)
+
+    # avresample or swresample, if avtranscoder depends on libav or ffmpeg
+    assert_equals(len(librariesName), 1)
+
+
+def testSupportedExtensions():
+    """
+    Check if we can access the supported extensions.
+    These numbers of input/output extensions correspond to the features implemented in common libraries (not in third parties).
+    @note Tested with ffmpeg-2.4.2
+    """
+    inputExtensions = av.getInputExtensions()
+    outputExtensions = av.getOutputExtensions()
+    
+    assert_greater_equal(len(inputExtensions), 162)
+    assert_greater_equal(len(outputExtensions), 184)