gstreamer-rs/gstreamer-base/src/functions.rs

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// 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 glib::object::IsA;
use glib::translate::*;
use gst;
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use gst_base_sys;
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use std::mem;
pub fn type_find_helper_for_data<
'a,
P: IsA<gst::Object> + 'a,
Q: Into<Option<&'a P>>,
R: AsRef<[u8]>,
>(
obj: Q,
data: R,
) -> (Option<gst::Caps>, gst::TypeFindProbability) {
assert_initialized_main_thread!();
let obj = obj.into();
unsafe {
let mut prob = mem::uninitialized();
let data = data.as_ref();
let (ptr, len) = (data.as_ptr(), data.len());
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let ret = from_glib_full(gst_base_sys::gst_type_find_helper_for_data(
obj.map(|p| p.as_ref()).to_glib_none().0,
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mut_override(ptr),
len,
&mut prob,
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));
(ret, from_glib(prob))
}
}