gstreamer-rs/gstreamer-base/src/base_transform.rs

54 lines
1.4 KiB
Rust

// Copyright (C) 2018 Sebastian Dröge <sebastian@centricular.com>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use ffi;
use glib::translate::*;
use glib::{IsA, IsClassFor};
use gst;
use std::ops;
use BaseTransform;
pub trait BaseTransformExtManual: 'static {
fn get_segment(&self) -> gst::Segment;
}
impl<O: IsA<BaseTransform>> BaseTransformExtManual for O {
fn get_segment(&self) -> gst::Segment {
unsafe {
let stash = self.to_glib_none();
let trans: &ffi::GstBaseTransform = &*stash.0;
::utils::MutexGuard::lock(&trans.element.object.lock);
from_glib_none(&trans.segment as *const _)
}
}
}
#[repr(C)]
pub struct BaseTransformClass(ffi::GstBaseTransformClass);
unsafe impl IsClassFor for BaseTransformClass {
type Instance = BaseTransform;
}
unsafe impl Send for BaseTransformClass {}
unsafe impl Sync for BaseTransformClass {}
impl ops::Deref for BaseTransformClass {
type Target = gst::ElementClass;
fn deref(&self) -> &Self::Target {
self.upcast_ref()
}
}
impl ops::DerefMut for BaseTransformClass {
fn deref_mut(&mut self) -> &mut Self::Target {
self.upcast_ref_mut()
}
}