hi try Glib::Object::Introspection::GValueWrapper like here: https://gist.github.com/vividsnow/06e8eb21165d6f01a8bf#file-gstreamer-video-test-pl-L17
On 11/20/2014 05:52 AM, Timm Murray wrote: > Moved the namespace to GStreamer1. Renamed the github repo as well: > > https://github.com/frezik/GStreamer1 > > I also cleaned up the examples to be more idiomatic. > > I'm getting stuck on how to set parameters on the caps. What I have now is: > > my $caps = GStreamer1::Caps->new_empty_simple( 'video/x-h264' ); > $caps->set_value( width => 800 ); > $caps->set_value( height => 600 ); > > > This gives me the error "Cannot convert arbitrary SV to GValue". > > In the original GStreamer Perl module, setting caps was done something like > this: > > my $caps = GStreamer::Caps::Simple->new( 'video/x-h264', > alignment => 'Glib::String' => 'au', > 'stream-format' => 'Glib::String' => 'byte-stream', > ); > > This constructor, in particular setting the Glib type, seems to be a bit of > syntactic sugar handled here: > > https://metacpan.org/source/XAOC/GStreamer-0.19/xs/GstCaps.xs > > Around line 46. > > Is there a way to coerce the type information? > > Thanks, > Timm > > On Tue, Nov 18, 2014 at 4:09 PM, Timm Murray <tmur...@wumpus-cave.net > <mailto:tmur...@wumpus-cave.net>> wrote: > > I should be coming back around to this over the next few days. I > probably will cleanup the examples along those lines. > > My main priority is getting a more complex pipeline going with callbacks > on a fakesink. That should provide a solid example, and hit on my original > goal for the > project (getting still images and video off the Raspberry Pi camera > without an external program). > > Thanks, > Timm > > On Tue, Nov 18, 2014 at 2:42 PM, Torsten Schoenfeld <kaffeeti...@gmx.de > <mailto:kaffeeti...@gmx.de>> wrote: > > On 13.11.2014 00:01, Timm Murray wrote: > > Thanks, I was able to get a basic pipeline going: > > > > https://github.com/frezik/Gst > > I don't know if you've changed it yet, but in your examples/hello.pl > <http://hello.pl>, > you can write some things more idiomatically. Instead of > > Gst::Element::set_state( $pipeline, "playing" ); > my $bus = Gst::Element::get_bus( $pipeline ); > my $msg = $bus->timed_pop_filtered( Gst::CLOCK_TIME_NONE, > [ 'error', 'eos' ]); > Gst::Element::set_state( $pipeline, "null" ); > > make use of the class hierarchy to write > > $pipeline->set_state( "playing" ); > my $bus = $pipeline->get_bus; > my $msg = $bus->timed_pop_filtered( Gst::CLOCK_TIME_NONE, > [ 'error', 'eos' ]); > $pipeline->set_state( "null" ); > _______________________________________________ > gtk-perl-list mailing list > gtk-perl-list@gnome.org <mailto:gtk-perl-list@gnome.org> > https://mail.gnome.org/mailman/listinfo/gtk-perl-list > > > > > > _______________________________________________ > gtk-perl-list mailing list > gtk-perl-list@gnome.org > https://mail.gnome.org/mailman/listinfo/gtk-perl-list > _______________________________________________ gtk-perl-list mailing list gtk-perl-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-perl-list
