It's actually a new feature in gst-python
http://cgit.freedesktop.org/gstreamer/gst-python/commit/?id=574275e773f3fbbbc0f980d541eb0d477cdf476e
It's actually a new feature in gst-python
http:// cgit.freedeskto p.org/gstreamer /gst-python/ commit/ ?id=574275e773f 3fbbbc0f980d541 eb0d477cdf476e