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gstreamer/ghost_pad: Add convenience constructors with target pad

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Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/issues/275
This commit is contained in:
Sebastian Dröge 2020-07-10 15:10:42 +03:00 committed by Sebastian Dröge
parent 4246a560fc
commit 81aba1b8a2
1 changed files with 25 additions and 1 deletions
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26
gstreamer/src/ghost_pad.rs
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@ -16,6 +16,7 @@ use LoggableError;
use Object; use Object;
use Pad; use Pad;
use PadBuilder; use PadBuilder;
use PadExt;
use PadExtManual; use PadExtManual;
use PadFlags; use PadFlags;
use PadGetRangeSuccess; use PadGetRangeSuccess;
@ -98,6 +99,30 @@ impl GhostPad {
skip_assert_initialized!(); skip_assert_initialized!();
PadBuilder::from_template(templ, name) PadBuilder::from_template(templ, name)
} }
pub fn with_target<P: IsA<Pad>>(
name: Option<&str>,
target: &P,
) -> Result<Self, glib::BoolError> {
skip_assert_initialized!();
Self::builder(name, target.get_direction()).build_with_target(target)
}
pub fn from_template_with_target<P: IsA<Pad>>(
templ: &::PadTemplate,
name: Option<&str>,
target: &P,
) -> Result<Self, glib::BoolError> {
skip_assert_initialized!();
if target.get_direction() != templ.get_property_direction() {
return Err(glib_bool_error!(
"Template and target have different directions"
));
}
Self::builder_with_template(templ, name).build_with_target(target)
}
} }
impl<T: IsA<GhostPad> + IsA<Pad>> PadBuilder<T> { impl<T: IsA<GhostPad> + IsA<Pad>> PadBuilder<T> {
@ -340,7 +365,6 @@ impl<T: IsA<GhostPad> + IsA<Pad>> PadBuilder<T> {
pub fn build_with_target<P: IsA<Pad>>(self, target: &P) -> Result<T, glib::BoolError> { pub fn build_with_target<P: IsA<Pad>>(self, target: &P) -> Result<T, glib::BoolError> {
use GhostPadExt; use GhostPadExt;
use PadExt;
assert_eq!(self.0.get_direction(), target.get_direction()); assert_eq!(self.0.get_direction(), target.get_direction());