[−][src]Trait gstreamer_editing_services::prelude::AssetExt
Required methods
fn extract(&self) -> Result<Extractable, Error>
Extracts a new Asset:extractable-type
object from the asset. The
Asset:id
of the asset may determine the properties and state of the
newly created object.
Returns
A newly created object, or None
if an
error occurred.
fn get_error(&self) -> Option<Error>
Retrieve the error that was set on the asset when it was loaded.
Returns
The error set on asset
, or
None
if no error occurred when asset
was loaded.
fn get_extractable_type(&self) -> Type
fn get_id(&self) -> Option<GString>
fn get_proxy(&self) -> Option<Asset>
fn get_proxy_target(&self) -> Option<Asset>
Gets the Asset:proxy-target
of the asset.
Note that the proxy target may have loaded with an error, so you should
call AssetExt::get_error
on the returned target.
Returns
The asset that self
is a proxy
of.
fn list_proxies(&self) -> Vec<Asset>
Get all the proxies that the asset has. The first item of the list will
be the default Asset:proxy
. The second will be the proxy that is
'next in line' to be default, and so on.
Returns
The list of proxies
that self
has.
fn set_proxy<P: IsA<Asset>>(&self, proxy: Option<&P>) -> Result<(), BoolError>
Sets the Asset:proxy
for the asset.
If proxy
is among the existing proxies of the asset (see
AssetExt::list_proxies
) it will be moved to become the default
proxy. Otherwise, if proxy
is not None
, it will be added to the list
of proxies, as the new default. The previous default proxy will become
'next in line' for if the new one is removed, and so on. As such, this
will not actually remove the previous default proxy (use
AssetExt::unproxy
for that).
Note that an asset can only act as a proxy for one other asset.
As a special case, if proxy
is None
, then this method will actually
remove all proxies from the asset.
proxy
A new default proxy for self
Returns
true
if proxy
was successfully set as the default for
self
.
fn unproxy<P: IsA<Asset>>(&self, proxy: &P) -> Result<(), BoolError>
Removes the proxy from the available list of proxies for the asset. If
the given proxy is the default proxy of the list, then the next proxy
in the available list (see AssetExt::list_proxies
) will become the
default. If there are no other proxies, then the asset will no longer
have a default Asset:proxy
.
proxy
An existing proxy of self
Returns
true
if proxy
was successfully removed from self
's proxy
list.
fn connect_property_proxy_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
&self,
f: F
) -> SignalHandlerId
fn connect_property_proxy_target_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
&self,
f: F
) -> SignalHandlerId
Implementors
impl<O: IsA<Asset>> AssetExt for O
[src]
fn extract(&self) -> Result<Extractable, Error>
[src]
fn get_error(&self) -> Option<Error>
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fn get_extractable_type(&self) -> Type
[src]
fn get_id(&self) -> Option<GString>
[src]
fn get_proxy(&self) -> Option<Asset>
[src]
fn get_proxy_target(&self) -> Option<Asset>
[src]
fn list_proxies(&self) -> Vec<Asset>
[src]
fn set_proxy<P: IsA<Asset>>(&self, proxy: Option<&P>) -> Result<(), BoolError>
[src]
fn unproxy<P: IsA<Asset>>(&self, proxy: &P) -> Result<(), BoolError>
[src]
fn connect_property_proxy_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
[src]
&self,
f: F
) -> SignalHandlerId
fn connect_property_proxy_target_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
[src]
&self,
f: F
) -> SignalHandlerId