gsoc-2014
padmonitor.py ported
I did the required changes and hence, flumotion/component/padmonitor.py is ported and tests pass:
flumotion.test.test_component_padmonitor
TestPadMonitor
testPadMonitorActivation ... [OK]
testPadMonitorTimeout ... [OK]
-------------------------------------------------------------------------------
Ran 2 tests in 0.663s
PASSED (successes=2)I faced some problems and following is what I did to fix them:
1
While changing this line code, as per Gstreamer docs, if maximum time to poll is negative(-1), this function will block indefinitely. But, keeping the value -1 gives the error:
===============================================================================
[ERROR]
Traceback (most recent call last):
File "/home/aps/workspace/gsoc/flumotion-orig/flumotion/test/test_component_padmonitor.py", line 51, in testPadMonitorActivation
self._run_pipeline(pipeline)
File "/home/aps/workspace/gsoc/flumotion-orig/flumotion/test/test_component_padmonitor.py", line 37, in _run_pipeline
pipeline.get_bus().poll(Gst.MessageType.EOS, Gst.CLOCK_TIME_NONE)
File "/usr/lib/python2.7/dist-packages/gi/types.py", line 43, in function
return info.invoke(*args, **kwargs)
exceptions.ValueError: -1 not in range 0 to 18446744073709551615So, reading some other documentation suggests me to use Gst.CLOCK_TIME_NONE in place of -1. Now, another problem. Value of Gst.CLOCK_TIME_NONE should be and is 18446744073709551615L on Gstreamer 1.2.4 on Ubuntu 14.04. But, on my system (Ubuntu 12.04, Gstreamer 1.2.1) I get value as -1. I’m not able to install any Gstreamer version newer than 1.2.1 either (I don’t think its available on Ubuntu 12.04 precise). Hence, to fix this, I’m manually putting in the correct value as an argument.
2
Again, due to this Gstreamer version problem, a function Gst.TIME_ARGS is not available. So, I’m writing that myself here:
if not hasattr(Gst, 'TIME_ARGS'):
def TIME_ARGS(time):
if time == Gst.CLOCK_TIME_NONE:
return 'CLOCK_TIME_NONE'
return '%u:%02u:%02u.%09u' % (time / (Gst.SECOND * 60 * 60),
(time / (Gst.SECOND * 60)) % 60,
(time / (Gst.SECOND) % 60),
time % Gst.SECOND)
Gst.TIME_ARGS = TIME_ARGS