Gst.PadProbeCallback?
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I am adding a probe to my src to do per frame timetamping/gps tagging. Adding the pad is easy, but what are the arguments to this callback? Line of code: self.nvcam0_pad.add_probe(Gst.PadProbeType.BUFFER, self.on_probe, None, None) Doc (to show I care!): ...says there are three. But the interpreter claims there are five? What are the five and does the doc need updating? Thanks! - aps _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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On Thu, Jun 13, 2019 at 6:10 PM pisymbol . <[hidden email]> wrote:
Sorry, I think I mean four (self doesn't count). But anyway, the doc seems incorrect? -aps _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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In reply to this post by pisymbol .
On Thu, 13 Jun 2019 18:10:17 -0400
"pisymbol ." <[hidden email]> wrote: > I am adding a probe to my src to do per frame timetamping/gps tagging. > Adding the pad is easy, but what are the arguments to this callback? > > Line of code: > > self.nvcam0_pad.add_probe(Gst.PadProbeType.BUFFER, self.on_probe, None, > None) > > Doc (to show I care!): > > https://gstreamer.freedesktop.org/documentation/gstreamer/gstpad.html?gi-language=python#GstPadProbeCallback > > ...says there are three. But the interpreter claims there are five? What > are the five and does the doc need updating? > How do you define self.on_probe()? Ciao, Antonio -- Antonio Ospite https://ao2.it https://twitter.com/ao2it A: Because it messes up the order in which people normally read text. See http://en.wikipedia.org/wiki/Posting_style Q: Why is top-posting such a bad thing? _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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As far as I can see the C interface
typedef GstPadProbeReturn (*GstPadProbeCallback) (GstPad *pad, GstPadProbeInfo *info, gpointer user_data); only has three parameters. And gulong gst_pad_add_probe (GstPad *pad, GstPadProbeType mask, GstPadProbeCallback callback, gpointer user_data, GDestroyNotify destroy_data); Has five. I think if the documentation claims differently then the documentation is wrong -----Ursprüngliche Nachricht----- Von: gstreamer-devel <[hidden email]> Im Auftrag von Antonio Ospite Gesendet: Freitag, 14. Juni 2019 08:55 An: [hidden email] Cc: pisymbol . <[hidden email]> Betreff: Re: Gst.PadProbeCallback? On Thu, 13 Jun 2019 18:10:17 -0400 "pisymbol ." <[hidden email]> wrote: > I am adding a probe to my src to do per frame timetamping/gps tagging. > Adding the pad is easy, but what are the arguments to this callback? > > Line of code: > > self.nvcam0_pad.add_probe(Gst.PadProbeType.BUFFER, self.on_probe, > None, > None) > > Doc (to show I care!): > > https://gstreamer.freedesktop.org/documentation/gstreamer/gstpad.html? > gi-language=python#GstPadProbeCallback > > ...says there are three. But the interpreter claims there are five? > What are the five and does the doc need updating? > How do you define self.on_probe()? Ciao, Antonio -- Antonio Ospite https://ao2.it https://twitter.com/ao2it A: Because it messes up the order in which people normally read text. See http://en.wikipedia.org/wiki/Posting_style Q: Why is top-posting such a bad thing? _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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On Fri, Jun 14, 2019 at 3:36 AM Thornton, Keith <[hidden email]> wrote: As far as I can see the C interface It seems the add_probe command in Python drops the destroy_data. That's the issue. Mea culpa. -aps _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: Gst.PadProbeCallback?
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In reply to this post by pisymbol .
The documentation was wrong indeed, fixed now:
https://gstreamer.freedesktop.org/documentation/gstreamer/gstpad.html?gi-language=python#gst_pad_add_probe https://gstreamer.freedesktop.org/documentation/gstreamer/gstpad.html?gi-language=python#GstPadProbeCallback For future reference you can also find a pad probe example in gst-python: https://gitlab.freedesktop.org/gstreamer/gst-python/blob/master/examples/dynamic_src.py Cheers! On 6/14/19 12:10 AM, pisymbol . wrote:
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On Fri, Jun 14, 2019 at 12:38 PM Mathieu Duponchelle <[hidden email]> wrote:
Thanks Mathieu! Really appreciated. -aps _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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