python - Recording with valve in my gstreamer pipeline -

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i have problem valve in pipeline :

self.pipeline = gst.parse_launch(' ! '.join(['autoaudiosrc',                                               'queue silent=false leaky=2 max-size-buffers=0 max-size-time=0 max-size-bytes=0',                                               'audioconvert',                                               'audioresample',                                               'audio/x-raw-int, rate=16000, width=16, depth=16, channels=1',                                               'tee name=t',                                               'queue',                                               'audioresample',                                               'audio/x-raw-int, rate=8000',                                               'vader name=vader auto-threshold=true',                                               'pocketsphinx lm=%s dict=%s name=listener' % (dir_path + '/pocketsphinx/lisa.lm',dir_path + '/pocketsphinx/lisa.dic'),                                               'fakesink dump=1 t.',                                               'valve name=valve drop=0',                                               'queue',                                               'flacenc',                                               'filesink async=0 location=' + self.recording]))

i know it's not best pythonic way create pipeline, it's readable.

setting 0 record mic flow in file , okay. want drop default, , open valve on fly depending event (listen keyword pocketsphinx), close valve again. don't seems work : file remains @ 0 bytes.

once pocketsphinx listen keyword, enable valve :

self.recording_valve.set_property('drop',false)

i tried give very short example of problem. maybe it's not located in part that's debug lead me.

to view entire project : https://github.com/seraf/lisa-client-linux/blob/pocketsphinx/lisa.tac

that call class : https://github.com/seraf/lisa-client-linux/blob/pocketsphinx/lib/listener.py

that call class : github /seraf/lisa-client-linux/blob/pocketsphinx/lib/recorder.py

thanks !

seems bit stupid, rewriting filesink file quickly, "watch" command, 1 second timeloop wasn't seeing change in file.

removing guilty line show me file filled correctly.

sorry noise.


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