Trying to use gst / omx in python

[Sebastian Dröge]

On Mo, 2014-04-07 at 18:39 +0100, TDAS wrote:
> Still a bit new to this, so hope I’m not being daft here ;) Trying to play an h.264 mp4 file in Python on a Raspberry Pi. And failing miserably ;) I’ve installed all the requirements (I believe) and I’m using the below script, which I adapted from somewhere. Now the command line works as follows:
> 
> gst-launch-1.0 filesrc location=/home/user/test.mp4 ! qtdemux ! queue max-size-bytes=10000000 ! h264parse ! omxh264dec ! queue max-size-buffers=4 ! eglglessink
> [...]
> pygst.require("0.10")
> import gst
> [...]

Your gst-launch line uses GStreamer 1.x, while the Python script uses
GStreamer 0.10. GStreamer 0.10 most likely won't work properly on the
RPi.

For GStreamer 1.x you'll have to use the PyGI based bindings, e.g. use
instead of the above:
> from gi.repository import Gst

Also the API has changed due to the switch to PyGI.

-- 
Sebastian Dröge, Centricular Ltd - http://www.centricular.com
Expertise, Straight from the Source
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