gstreamer-rs/gstreamer/src/element.rs

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2017-07-07 11:47:28 +00:00
// Copyright (C) 2017 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 Element;
use glib;
use glib::IsA;
use glib::translate::{ToGlibPtr, from_glib};
use ffi;
impl Element {
pub fn link_many<E: IsA<Element>>(elements: &[&E]) -> Result<(), glib::BoolError> {
for (e1, e2) in elements.iter().zip(elements.iter().skip(1)) {
unsafe {
let ret: bool = from_glib(ffi::gst_element_link(e1.to_glib_none().0, e2.to_glib_none().0));
if !ret {
return Err(glib::BoolError("Failed to link elements"));
}
}
}
return Ok(());
}
pub fn unlink_many<E: IsA<Element>>(elements: &[&E]) {
for (e1, e2) in elements.iter().zip(elements.iter().skip(1)) {
unsafe {
ffi::gst_element_unlink(e1.to_glib_none().0, e2.to_glib_none().0);
}
}
}
}