gstreamer_controller/
timed_value_control_source.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use glib::{prelude::*, translate::*};
4
5use crate::{ffi, TimedValueControlSource};
6
7pub trait TimedValueControlSourceExtManual: IsA<TimedValueControlSource> + 'static {
8    #[doc(alias = "gst_timed_value_control_source_list_control_points")]
9    fn list_control_points(&self) -> glib::collections::Slice<gst::TimedValue> {
10        #[cfg(feature = "v1_28")]
11        unsafe {
12            let mut n_control_points = std::mem::MaybeUninit::uninit();
13            let ptr = ffi::gst_timed_value_control_source_list_control_points(
14                self.as_ref().to_glib_none().0,
15                n_control_points.as_mut_ptr(),
16            );
17            let len = n_control_points.assume_init() as usize;
18            FromGlibContainer::from_glib_full_num(ptr, len)
19        }
20        #[cfg(not(feature = "v1_28"))]
21        unsafe {
22            // Get the GList of GstControlPoint pointers
23            use std::mem;
24            use std::ptr;
25
26            let glist_head =
27                ffi::gst_timed_value_control_source_get_all(self.as_ref().to_glib_none().0);
28            let len = glib::ffi::g_list_length(glist_head) as usize;
29            let result = glib::ffi::g_malloc(
30                mem::size_of::<gst::ffi::GstTimedValue>()
31                    .checked_mul(len)
32                    .unwrap(),
33            ) as *mut gst::ffi::GstTimedValue;
34
35            let mut glist_ptr = glist_head;
36            for i in 0..len {
37                let cp_ptr = (*glist_ptr).data as *const gst::ffi::GstTimedValue;
38                *result.add(i) = ptr::read(cp_ptr);
39                glist_ptr = (*glist_ptr).next;
40            }
41            glib::ffi::g_list_free(glist_head);
42
43            FromGlibContainer::from_glib_full_num(result, len)
44        }
45    }
46}
47
48impl<O: IsA<TimedValueControlSource>> TimedValueControlSourceExtManual for O {}
gstreamer_controller/timed_value_control_source.rs

gstreamer_controller/
timed_value_control_source.rs
