gstreamer_video/
video_filter.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use glib::{prelude::*, translate::*};
4use gst::prelude::*;
5use gst_base::prelude::*;
6
7use crate::{ffi, VideoFilter};
8
9mod sealed {
10    pub trait Sealed {}
11    impl<T: super::IsA<super::VideoFilter>> Sealed for T {}
12}
13
14pub trait VideoFilterExtManual: sealed::Sealed + IsA<VideoFilter> + 'static {
15    fn input_video_info(&self) -> Option<crate::VideoInfo> {
16        unsafe {
17            let ptr = self.as_ptr() as *mut ffi::GstVideoFilter;
18            let sinkpad = self.as_ref().sink_pad();
19            let _guard = sinkpad.stream_lock();
20
21            let info = &(*ptr).in_info;
22
23            if info.finfo.is_null() || info.width <= 0 || info.height <= 0 {
24                return None;
25            }
26
27            Some(from_glib_none(mut_override(
28                info as *const ffi::GstVideoInfo,
29            )))
30        }
31    }
32
33    fn output_video_info(&self) -> Option<crate::VideoInfo> {
34        unsafe {
35            let ptr = self.as_ptr() as *mut ffi::GstVideoFilter;
36            let sinkpad = self.as_ref().sink_pad();
37            let _guard = sinkpad.stream_lock();
38
39            let info = &(*ptr).out_info;
40
41            if info.finfo.is_null() || info.width <= 0 || info.height <= 0 {
42                return None;
43            }
44
45            Some(from_glib_none(mut_override(
46                info as *const ffi::GstVideoInfo,
47            )))
48        }
49    }
50}
51
52impl<O: IsA<VideoFilter>> VideoFilterExtManual for O {}
gstreamer_video/video_filter.rs

gstreamer_video/
video_filter.rs
