gstreamer-rs/gstreamer/src/element_factory.rs

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2021-09-19 08:10:18 +00:00
// Take a look at the license at the top of the repository in the LICENSE file.
use crate::ELEMENT_METADATA_AUTHOR;
use crate::ELEMENT_METADATA_DESCRIPTION;
use crate::ELEMENT_METADATA_DOC_URI;
use crate::ELEMENT_METADATA_ICON_NAME;
use crate::ELEMENT_METADATA_KLASS;
use crate::ELEMENT_METADATA_LONGNAME;
use std::ffi::CStr;
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#[cfg(any(feature = "v1_20", feature = "dox"))]
use crate::Element;
use crate::ElementFactory;
use crate::Rank;
use crate::StaticPadTemplate;
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#[cfg(any(feature = "v1_20", feature = "dox"))]
use glib::prelude::*;
use glib::translate::*;
impl ElementFactory {
#[cfg(any(feature = "v1_20", feature = "dox"))]
#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_20")))]
#[doc(alias = "gst_element_factory_create_with_properties")]
pub fn create_with_properties(
&self,
properties: &[(&str, &dyn ToValue)],
) -> Result<Element, glib::BoolError> {
assert_initialized_main_thread!();
let n = properties.len() as u32;
let names = properties.iter().map(|(name, _)| *name).collect::<Vec<_>>();
let values = properties
.iter()
.map(|(_, value)| value.to_value())
.collect::<Vec<_>>();
unsafe {
Option::<_>::from_glib_none(ffi::gst_element_factory_create_with_properties(
self.to_glib_none().0,
n,
names.to_glib_none().0,
values.as_ptr() as *const glib::gobject_ffi::GValue,
))
.ok_or_else(|| glib::bool_error!("Failed to create element from factory"))
}
}
#[cfg(any(feature = "v1_20", feature = "dox"))]
#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_20")))]
#[doc(alias = "gst_element_factory_make_with_properties")]
pub fn make_with_properties(
factoryname: &str,
properties: &[(&str, &dyn ToValue)],
) -> Result<Element, glib::BoolError> {
assert_initialized_main_thread!();
let n = properties.len() as u32;
let names = properties.iter().map(|(name, _)| *name).collect::<Vec<_>>();
let values = properties
.iter()
.map(|(_, value)| value.to_value())
.collect::<Vec<_>>();
assert_initialized_main_thread!();
unsafe {
Option::<_>::from_glib_none(ffi::gst_element_factory_make_with_properties(
factoryname.to_glib_none().0,
n,
names.to_glib_none().0,
values.as_ptr() as *const glib::gobject_ffi::GValue,
))
.ok_or_else(|| glib::bool_error!("Failed to create element from factory name"))
}
}
#[doc(alias = "gst_element_factory_get_static_pad_templates")]
#[doc(alias = "get_static_pad_templates")]
pub fn static_pad_templates(&self) -> glib::List<StaticPadTemplate> {
unsafe {
glib::List::from_glib_none_static(ffi::gst_element_factory_get_static_pad_templates(
self.to_glib_none().0,
) as *mut _)
}
}
#[doc(alias = "gst_element_factory_list_is_type")]
pub fn has_type(&self, type_: crate::ElementFactoryType) -> bool {
unsafe {
from_glib(ffi::gst_element_factory_list_is_type(
self.to_glib_none().0,
type_.into_glib(),
))
}
}
#[doc(alias = "gst_element_factory_list_get_elements")]
pub fn factories_with_type(
type_: crate::ElementFactoryType,
minrank: Rank,
) -> glib::List<ElementFactory> {
assert_initialized_main_thread!();
unsafe {
FromGlibPtrContainer::from_glib_full(ffi::gst_element_factory_list_get_elements(
type_.into_glib(),
minrank.into_glib(),
))
}
}
#[doc(alias = "gst_element_factory_get_metadata")]
#[doc(alias = "get_metadata")]
pub fn metadata(&self, key: &str) -> Option<&str> {
unsafe {
let ptr =
ffi::gst_element_factory_get_metadata(self.to_glib_none().0, key.to_glib_none().0);
if ptr.is_null() {
None
} else {
Some(CStr::from_ptr(ptr).to_str().unwrap())
}
}
}
#[doc(alias = "get_longname")]
#[doc(alias = "gst_element_factory_get_longname")]
pub fn longname(&self) -> &str {
self.metadata(&ELEMENT_METADATA_LONGNAME).unwrap()
}
#[doc(alias = "get_klass")]
#[doc(alias = "gst_element_factory_get_klass")]
pub fn klass(&self) -> &str {
self.metadata(&ELEMENT_METADATA_KLASS).unwrap()
}
#[doc(alias = "get_description")]
#[doc(alias = "gst_element_factory_get_description")]
pub fn description(&self) -> &str {
self.metadata(&ELEMENT_METADATA_DESCRIPTION).unwrap()
}
#[doc(alias = "get_author")]
#[doc(alias = "gst_element_factory_get_author")]
pub fn author(&self) -> &str {
self.metadata(&ELEMENT_METADATA_AUTHOR).unwrap()
}
#[doc(alias = "get_documentation_uri")]
#[doc(alias = "gst_element_factory_get_documentation_uri")]
pub fn documentation_uri(&self) -> Option<&str> {
self.metadata(&ELEMENT_METADATA_DOC_URI)
}
#[doc(alias = "get_icon_name")]
#[doc(alias = "gst_element_factory_get_icon_name")]
pub fn icon_name(&self) -> Option<&str> {
self.metadata(&ELEMENT_METADATA_ICON_NAME)
}
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}