gstreamer-rs/gstreamer/src/allocation_params.rs
Philippe Normand 6d88e18772 gstreamer: Add bindings for querying allocation params
This can be used to query downstream for custom allocators.
2021-10-12 17:16:21 +01:00

79 lines
1.9 KiB
Rust

// Take a look at the license at the top of the repository in the LICENSE file.
use std::mem;
use glib::translate::*;
use crate::MemoryFlags;
#[derive(Debug, Clone)]
#[doc(alias = "GstAllocationParams")]
pub struct AllocationParams(ffi::GstAllocationParams);
unsafe impl Send for AllocationParams {}
unsafe impl Sync for AllocationParams {}
impl AllocationParams {
#[doc(alias = "get_flags")]
pub fn flags(&self) -> MemoryFlags {
unsafe { from_glib(self.0.flags) }
}
#[doc(alias = "get_align")]
pub fn align(&self) -> usize {
self.0.align
}
#[doc(alias = "get_prefix")]
pub fn prefix(&self) -> usize {
self.0.prefix
}
#[doc(alias = "get_padding")]
pub fn padding(&self) -> usize {
self.0.padding
}
pub fn new(flags: MemoryFlags, align: usize, prefix: usize, padding: usize) -> Self {
assert_initialized_main_thread!();
let allocationparams = unsafe {
ffi::GstAllocationParams {
flags: flags.into_glib(),
align,
prefix,
padding,
..mem::zeroed()
}
};
AllocationParams(allocationparams)
}
pub fn as_ptr(&self) -> *const ffi::GstAllocationParams {
&self.0
}
}
impl From<ffi::GstAllocationParams> for AllocationParams {
fn from(params: ffi::GstAllocationParams) -> Self {
skip_assert_initialized!();
AllocationParams(params)
}
}
#[doc(hidden)]
impl<'a> ToGlibPtr<'a, *const ffi::GstAllocationParams> for AllocationParams {
type Storage = &'a Self;
fn to_glib_none(&'a self) -> Stash<'a, *const ffi::GstAllocationParams, Self> {
Stash(&self.0, self)
}
}
impl FromGlib<ffi::GstAllocationParams> for AllocationParams {
#[allow(unused_unsafe)]
unsafe fn from_glib(value: ffi::GstAllocationParams) -> Self {
assert_initialized_main_thread!();
AllocationParams(value)
}
}