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The property was added in February 2017, so as far as I can tell you
need at least 1.12,<br>
possibly 1.14<br>
<br>
<div class="moz-cite-prefix">On 7/31/19 6:21 PM, pisymbol . wrote:<br>
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<div dir="ltr" class="gmail_attr">On Wed, Jul 31, 2019 at 8:09
AM Nicolas Dufresne <<a
href="mailto:nicolas@ndufresne.ca" moz-do-not-send="true">nicolas@ndufresne.ca</a>>
wrote:<br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">Le mardi 30 juillet 2019
à 09:45 -0400, pisymbol . a écrit :<br>
> <br>
> <br>
> On Mon, Jul 29, 2019 at 8:00 PM Nicolas Dufresne <<a
href="mailto:nicolas@ndufresne.ca" target="_blank"
moz-do-not-send="true">nicolas@ndufresne.ca</a>> wrote:<br>
> > <br>
> > Le lun. 29 juill. 2019 19 h 56, pisymbol . <<a
href="mailto:pisymbol@gmail.com" target="_blank"
moz-do-not-send="true">pisymbol@gmail.com</a>> a écrit
:<br>
> > > <br>
> > > On Mon, Jul 29, 2019 at 5:51 PM Mathieu
Duponchelle <<a href="mailto:mathieu@centricular.com"
target="_blank" moz-do-not-send="true">mathieu@centricular.com</a>>
wrote:<br>
> > > > I've never seen that, but a test case
would probably be helpful :)<br>
> > > > <br>
> > > <br>
> > > Not sure what exactly to share:<br>
> > > <br>
> > > Here is the gist of the code:<br>
> > > <br>
> > > class GstPlayerWdiget(Gtk.Box):<br>
> > > ....<br>
> > > self.play_pipeline = Gst.Pipeline()<br>
> > > factory =
self.play_pipeline.get_factory()<br>
> > > gtksink =
Gst.ElementFactory.make('gtksink', None)<br>
> > > gtksink.set_property("sync", False)<br>
> > <br>
> > By disabling the sync, you ask GStreamer to play
all frames, even when real-time isn't possible due to cpu
limitation. So slow motion on this entirely software
pipeline is what you have asked GStreamer.<br>
> > <br>
> > If you have multiple cores, consider configuring
videoconvert to use more then one thread, or add queues at
well chosen places (e.g. between decoder and converter).<br>
> > <br>
> <br>
> Nicholas, pardon my ignorance, but how does configuring
videoconvert use more than one thread?<br>
<br>
There is a property called n-threads, 0 mean as many as
there is CPU,<br>
and then any other value will try and use that specific
amount of<br>
threads. In python that would be:<br>
<br>
converter.props.n_threads = N<br>
or<br>
converter.set_property("n-threads", N)<br>
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<div>Is this on newer releases? I ask because now I see it in
the online doc but not using `gst-inspect-1.0 videoconvert`
as an element property?</div>
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<div>-aps<br>
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