diff --git a/python_apps/pypo/liquidsoap_scripts/library/gstreamer.liq b/python_apps/pypo/liquidsoap_scripts/library/gstreamer.liq
new file mode 100644
index 000000000..d3a364abd
--- /dev/null
+++ b/python_apps/pypo/liquidsoap_scripts/library/gstreamer.liq
@@ -0,0 +1,34 @@
+%ifdef input.gstreamer.video
+# Stream from a video4linux 2 input device, such as a webcam.
+# @category Source / Input
+# @param ~id Force the value of the source ID.
+# @param ~clock_safe Force the use of the dedicated v4l clock.
+# @param ~device V4L2 device to use.
+def input.v4l2(~id="",~clock_safe=true,~device="/dev/video0")
+  pipeline = "v4l2src device=#{device}"
+  input.gstreamer.video(id=id, clock_safe=clock_safe, pipeline=pipeline)
+end
+
+# Stream from a video4linux 2 input device, such as a webcam.
+# @category Source / Input
+# @param ~id Force the value of the source ID.
+# @param ~clock_safe Force the use of the dedicated v4l clock.
+# @param ~device V4L2 device to use.
+def input.v4l2_with_audio(~id="",~clock_safe=true,~device="/dev/video0")
+  audio_pipeline = "autoaudiosrc"
+  video_pipeline = "v4l2src device=#{device}"
+  input.gstreamer.audio_video(id=id, clock_safe=clock_safe, audio_pipeline=audio_pipeline, video_pipeline=video_pipeline)
+end
+
+def gstreamer.encode_x264_avi(fname, source)
+  output.gstreamer.video(pipeline="videoconvert ! x264enc ! avimux ! filesink location=\"#{fname}\"", source)
+end
+
+def gstreamer.encode_jpeg_avi(fname, source)
+  output.gstreamer.video(pipeline="videoconvert ! jpegenc ! avimux ! filesink location=\"#{fname}\"", source)
+end
+
+def gstreamer.encode_mp3(fname, source)
+  output.gstreamer.audio(pipeline="audioconvert ! lamemp3enc ! filesink location=\"#{fname}\"", source)
+end
+%endif
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