Flow of PAUSE request from gstreamer to upper QT application.

[sathish]

Thanks Sebastian,

I was able to handle the request.


On 2 December 2013 21:40, Sebastian Dröge-3 [via GStreamer-devel] <
ml-node+s966125n4663797h52 at n4.nabble.com> wrote:

> On Mo, 2013-12-02 at 07:37 -0800, sathish wrote:
>
> > Thanks for the reply Sebastian
> >
> > So Phonon doesnt handle it but GSTREAMER handles it.
> >
> > Hence to do a test, I left QT - Phonon application. Instead I am using a
> > gstreamer media player code available in the gstreamer documentation.
> Name
> > of the file is Basic-tutorial-5.c.
> >
> > In this, I am initiating a CORK request.. I have pasted the part of the
> > code in which messages on the bus are handled.
> >
> >  /* Instruct the bus to emit signals for each received message, and
> connect
> > to the interesting signals */
> >
> >   bus = gst_element_get_bus (data.playbin2);
> >   gst_bus_add_signal_watch (bus);
> >   g_signal_connect (G_OBJECT (bus), "message::error",
> (GCallback)error_cb,
> > &data);
> >   g_signal_connect (G_OBJECT (bus), "message::eos", (GCallback)eos_cb,
> > &data);
> >   g_signal_connect (G_OBJECT (bus), "message::state-changed",
> > (GCallback)state_changed_cb, &data);
> >   g_signal_connect (G_OBJECT (bus), "message::application",
> > (GCallback)application_cb, &data);
> >   gst_object_unref (bus);
> >
> > My question is how should I handle this in case of the following code
> > pasted below
> >
> > gst_element_post_message (GST_ELEMENT_CAST (psink),
> > > >         gst_message_new_request_state (GST_OBJECT_CAST (psink),
> > > >             GST_STATE_PAUSED));
> >
> > How would I able to find the bus message. Like in case of End of Stream,
> we
> > get "message::eos", what would it be for the above piece of code ??
> >
> > Would I get "GST_STATE_PAUSED" on the bus or something else ??
> You would get a GST_MESSAGE_REQUEST_STATE on the bus, and you could
> parse the requested state from it via gst_message_parse_request_state().
> You would then call gst_element_set_state() on the pipeline for that
> state.
>
> --
> Sebastian Dröge <[hidden email]<http://user/SendEmail.jtp?type=node&node=4663797&i=0>>
>
> Centricular Ltd - http://www.centricular.com
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