[gst-devel] Overwriting files in sinks
ensonic at hora-obscura.de
Thu Oct 4 09:55:09 CEST 2007
Quoting Stefan Kost <ensonic at hora-obscura.de>:
> Hi René,
> René Stadler wrote:
>> Am Mittwoch, den 03.10.2007, 08:05 +0200 schrieb Stefan Kost:
>>> Quoting Sebastian Dröge <slomo at circular-chaos.org>:
>>>> Am Montag, den 01.10.2007, 22:29 +0300 schrieb Stefan Kost:
>>>>> Sebastian Dröge wrote:
>>>>>> Am Samstag, den 29.09.2007, 13:38 +0300 schrieb Stefan Kost:
>>>>>>> shouldn't this be done as a GInterface? Then an application can
>>>>> reliably detect
>>>>>>> that it supports it.
>>>>>> How would this interface look like? Can interfaces contain signals?
>>>>> Yes, they can.
>>>>> GstFilesystemSinkIface could be a interface name - dunno what else
>>>>> could fit in
>>>> Ok, good to know... might be a good solution then :)
>>> One more idea for the interface. It could help to identify the
>>> property that has the uir/location. Ideally its a interface property
>>> called "location". But that means elements like playbin will have the
>>> uri property as legacy (unfortunately there is not G_PARAM_DEPRECATED
>>> flag, to mark it as such).
>>> It would also be nice to see if it is a local file-path or a uri.
>>> Regariding this I just wrote an email to gtk-app-devel to see if
>>> someone already implemented GParamSpecs for a file-path or uri. That
>>> would then also be enough to tell them apart fromr egular strings.
>>> Why I need that info? Beause I generate UI for gstreamer elements.
>> For generating a consistent UI, just provide a way to set the URI
>> through the URIHandler interface. There's no need to use a property for
>> that, let alone use heuristics or a new data type to find out which one
>> of the properties corresponds to the very same purpose that the
>> interface implementation does.
> The UI generation code walks over the properties and generates
> widgets for them.
> The URIHanlerInterface could have been usefull, if it would have used an
> interface property instead of two interface methods (get_uri/set_uri).
> How should the urihandler-iface help me to identify which property I
> can hide.
Answering myself: Please close this mail if you don't want to read
something ugly so early in the morning:
saved = gst_uri_handler_get_uri (elem);
id = g_signal_connect (elem, "notify", check_notify, self);
gst_uri_handler_set_uri (elem, saved);
g_signal_handler_disconnect (elem, id);
check_notify (const GstElement *elem,GParamSpec *arg,gpointer user_data)
uri_param = arg->name;
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