pygi

vassilux . v.gontcharov at gmail.com
Thu Nov 19 07:37:56 PST 2015


Yes ...

2015-11-19 16:32 GMT+01:00 Raushan Kumar Choudhary <
raushankumar at tataelxsi.co.in>:

> did u switch on your internet connection
>
> Sent from my iPhone
>
> > On 19-Nov-2015, at 8:24 pm, vassilux . <v.gontcharov at gmail.com> wrote:
> >
> > Hi alls,
> > I try to port my old java-gstreamer application to pygi and make a
> little test with follow
> > This commande works
> > gst-launch-1.0 filesrc location=c:\\audiotest\\0000ad39.wav ! decodebin
> ! audioconvert ! audioresample ! lamemp3enc ! filesink
> location=c:\\audiotest\\0000ad39.mp3
> >
> >
> > I want to run something like this from python(pygi)
> >
> > import logging
> > from logging.handlers import RotatingFileHandler
> >
> > logging.basicConfig(level=logging.INFO)
> >
> > logger = logging.getLogger('myapp')
> >
> > import gi
> > gi.require_version('Gst', '1.0')
> > from gi.repository import GObject, Gst
> >
> > GObject.threads_init()
> > Gst.init(None)
> >
> > def transcode_process(pathin, pathout):
> >
> >       log_message = "Transcoding %s to %s" % (pathin, pathout)
> >
> >       cmd = 'filesrc location=c:\\\\audiotest\\0000ad39.wav name=source
> ! decodebin ! audioconvert ! audioresample ! lamemp3enc name=encoder !
> filesink location=c:\\\\audiotest\\0000ad39.mp3 name=output'
> >
> >       pipeline = Gst.parse_launch(cmd)
> >
> >       if pipeline == None:
> >               logger.error("Failed get pipeline")
> >               return
> >
> >       source = pipeline.get_by_name('source')
> >
> >       if source == None:
> >               logger.error("Failed get source")
> >               return
> >
> >       try:
> >
> >               pipeline.set_state(Gst.State.PLAYING)
> >
> >               bus = pipeline.get_bus()
> >
> >               msg = bus.timed_pop_filtered(Gst.CLOCK_TIME_NONE,
> Gst.MessageType.ERROR | Gst.MessageType.EOS)
> >
> >
> >               pipeline.set_state(Gst.State.NULL)
> >
> >       except Exception as e:
> >               logger.error(str(e))
> >               logger.error("Could not open the file for transcoding.
> This is probably happening because there are non-ASCII characters in the
> filename.")
> >       finally:
> >               try:
> >                       # I think this is supposed to free the memory used
> by the pipeline
> >                       pipeline.set_state(Gst.State.NULL)
> >               except:
> >                       pass
> >
> >
> > def main():
> >       print sys.getdefaultencoding()
> >       transcode_process("c:\\\\audiotest\\0000ad39.wav",
> "c:\\\\audiotest\\0000ad39.mp3")
> >
> >
> > if __name__ == "__main__":
> >       main()
> >
> >
> > Something missing .. :-)
> >
> > Thank for help
> >
> >
> >
> > _______________________________________________
> > gstreamer-devel mailing list
> > gstreamer-devel at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>



-- 
Vassili Gontcharov
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