forked from mirrors/gstreamer-rs
90 lines
2.4 KiB
Rust
90 lines
2.4 KiB
Rust
// Take a look at the license at the top of the repository in the LICENSE file.
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use crate::Caps;
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use crate::DeviceMonitor;
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use glib::prelude::*;
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use glib::translate::*;
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use std::num::NonZeroU32;
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#[derive(Debug, PartialEq, Eq)]
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pub struct DeviceMonitorFilterId(NonZeroU32);
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impl IntoGlib for DeviceMonitorFilterId {
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type GlibType = libc::c_uint;
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fn into_glib(self) -> libc::c_uint {
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self.0.get()
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}
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}
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impl FromGlib<libc::c_uint> for DeviceMonitorFilterId {
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unsafe fn from_glib(val: libc::c_uint) -> DeviceMonitorFilterId {
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skip_assert_initialized!();
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assert_ne!(val, 0);
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DeviceMonitorFilterId(NonZeroU32::new_unchecked(val))
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}
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}
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pub trait DeviceMonitorExtManual: 'static {
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#[doc(alias = "gst_device_monitor_add_filter")]
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fn add_filter(
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&self,
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classes: Option<&str>,
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caps: Option<&Caps>,
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) -> Option<DeviceMonitorFilterId>;
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#[doc(alias = "gst_device_monitor_remove_filter")]
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fn remove_filter(&self, filter_id: DeviceMonitorFilterId)
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-> Result<(), glib::error::BoolError>;
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#[doc(alias = "gst_device_monitor_get_devices")]
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#[doc(alias = "get_devices")]
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fn devices(&self) -> glib::List<crate::Device>;
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}
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impl<O: IsA<DeviceMonitor>> DeviceMonitorExtManual for O {
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fn add_filter(
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&self,
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classes: Option<&str>,
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caps: Option<&Caps>,
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) -> Option<DeviceMonitorFilterId> {
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let id = unsafe {
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ffi::gst_device_monitor_add_filter(
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self.as_ref().to_glib_none().0,
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classes.to_glib_none().0,
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caps.to_glib_none().0,
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)
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};
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if id == 0 {
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None
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} else {
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Some(unsafe { from_glib(id) })
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}
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}
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fn remove_filter(
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&self,
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filter_id: DeviceMonitorFilterId,
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) -> Result<(), glib::error::BoolError> {
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unsafe {
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glib::result_from_gboolean!(
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ffi::gst_device_monitor_remove_filter(
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self.as_ref().to_glib_none().0,
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filter_id.into_glib()
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),
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"Failed to remove the filter"
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)
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}
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}
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fn devices(&self) -> glib::List<crate::Device> {
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unsafe {
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FromGlibPtrContainer::from_glib_full(ffi::gst_device_monitor_get_devices(
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self.as_ref().to_glib_none().0,
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))
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}
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}
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}
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