gstreamer/plugin_feature: Make load downcast to Self

The loaded plugin feature is always of the same type as the unloaded
one. Move `fn load` to PluginFeatureExtManual to implement this.
This commit is contained in:
Jan Alexander Steffens (heftig) 2021-02-19 11:52:12 +01:00 committed by Sebastian Dröge
parent d746bf91e1
commit 59d91b2abf
9 changed files with 43 additions and 29 deletions

View file

@ -1240,8 +1240,7 @@ manual_traits = ["PluginFeatureExtManual"]
[[object.function]]
name = "load"
[object.function.return]
nullable_return_is_error = "Failed to load plugin feature"
manual = true
[[object]]
name = "Gst.Registry"

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@ -29,9 +29,6 @@ pub trait PluginFeatureExt: 'static {
#[doc(alias = "gst_plugin_feature_get_plugin_name")]
fn get_plugin_name(&self) -> Option<glib::GString>;
#[doc(alias = "gst_plugin_feature_load")]
fn load(&self) -> Result<PluginFeature, glib::BoolError>;
}
impl<O: IsA<PluginFeature>> PluginFeatureExt for O {
@ -61,13 +58,4 @@ impl<O: IsA<PluginFeature>> PluginFeatureExt for O {
))
}
}
fn load(&self) -> Result<PluginFeature, glib::BoolError> {
unsafe {
Option::<_>::from_glib_full(ffi::gst_plugin_feature_load(
self.as_ref().to_glib_none().0,
))
.ok_or_else(|| glib::bool_error!("Failed to load plugin feature"))
}
}
}

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@ -1,2 +1,2 @@
Generated by gir (https://github.com/gtk-rs/gir @ 1c7b41a)
from gir-files (https://github.com/gtk-rs/gir-files @ 3c0281db)
Generated by gir (https://github.com/gtk-rs/gir @ d8408d8)
from gir-files (https://github.com/gtk-rs/gir-files @ 5f5218e1)

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@ -3,12 +3,13 @@
use crate::PluginFeature;
use crate::Rank;
use glib::object::IsA;
use glib::translate::{from_glib, ToGlib, ToGlibPtr};
use glib::object::{Cast, IsA};
use glib::translate::{from_glib, FromGlibPtrFull, ToGlib, ToGlibPtr};
pub trait PluginFeatureExtManual: 'static {
pub trait PluginFeatureExtManual: Sized + 'static {
fn get_rank(&self) -> Rank;
fn set_rank(&self, rank: Rank);
fn load(&self) -> Result<Self, glib::BoolError>;
}
impl<O: IsA<PluginFeature>> PluginFeatureExtManual for O {
@ -24,4 +25,30 @@ impl<O: IsA<PluginFeature>> PluginFeatureExtManual for O {
ffi::gst_plugin_feature_set_rank(self.as_ref().to_glib_none().0, rank.to_glib() as u32);
}
}
fn load(&self) -> Result<Self, glib::BoolError> {
unsafe {
let loaded = Option::<PluginFeature>::from_glib_full(ffi::gst_plugin_feature_load(
self.as_ref().to_glib_none().0,
))
.ok_or_else(|| glib::bool_error!("Failed to load plugin feature"))?;
Ok(loaded.unsafe_cast())
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::prelude::*;
#[test]
fn test_load() {
crate::init().unwrap();
let factory = crate::ElementFactory::find("identity").unwrap();
let loaded = factory.load().unwrap();
assert_eq!(factory.get_type(), loaded.get_type());
let _element = loaded.create(None).unwrap();
}
}

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@ -1,5 +1,5 @@
// This file was generated by gir (https://github.com/gtk-rs/gir @ 1c7b41a)
// from gir-files (https://github.com/gtk-rs/gir-files @ 3c0281db)
// This file was generated by gir (https://github.com/gtk-rs/gir @ d8408d8)
// from gir-files (https://github.com/gtk-rs/gir-files @ 5f5218e1)
// DO NOT EDIT
#[cfg(not(feature = "dox"))]

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@ -1,5 +1,5 @@
// This file was generated by gir (https://github.com/gtk-rs/gir @ 1c7b41a)
// from gir-files (https://github.com/gtk-rs/gir-files @ 3c0281db)
// This file was generated by gir (https://github.com/gtk-rs/gir @ d8408d8)
// from gir-files (https://github.com/gtk-rs/gir-files @ 5f5218e1)
// DO NOT EDIT
#![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]

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@ -1,5 +1,5 @@
// This file was generated by gir (https://github.com/gtk-rs/gir @ 1c7b41a)
// from gir-files (https://github.com/gtk-rs/gir-files @ 3c0281db)
// This file was generated by gir (https://github.com/gtk-rs/gir @ d8408d8)
// from gir-files (https://github.com/gtk-rs/gir-files @ 5f5218e1)
// DO NOT EDIT
use gstreamer_sys::*;

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@ -1,5 +1,5 @@
// This file was generated by gir (https://github.com/gtk-rs/gir @ 1c7b41a)
// from gir-files (https://github.com/gtk-rs/gir-files @ 3c0281db)
// This file was generated by gir (https://github.com/gtk-rs/gir @ d8408d8)
// from gir-files (https://github.com/gtk-rs/gir-files @ 5f5218e1)
// DO NOT EDIT
#include "manual.h"

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@ -1,5 +1,5 @@
// This file was generated by gir (https://github.com/gtk-rs/gir @ 1c7b41a)
// from gir-files (https://github.com/gtk-rs/gir-files @ 3c0281db)
// This file was generated by gir (https://github.com/gtk-rs/gir @ d8408d8)
// from gir-files (https://github.com/gtk-rs/gir-files @ 5f5218e1)
// DO NOT EDIT
#include "manual.h"