1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use glib::{prelude::*, translate::*};
4use gst_base::prelude::*;
5
6use crate::{ffi, AudioFilter, AudioInfo};
7
8mod sealed {
9 pub trait Sealed {}
10 impl<T: super::IsA<super::AudioFilter>> Sealed for T {}
11}
12
13pub trait AudioFilterExtManual: sealed::Sealed + IsA<AudioFilter> + 'static {
14 fn audio_info(&self) -> Option<AudioInfo> {
15 unsafe {
16 let ptr: &ffi::GstAudioFilter = &*(self.as_ptr() as *const _);
17 let sinkpad: &Pad = self.as_ref().sink_pad();
18 let _guard: StreamLock<'_> = sinkpad.stream_lock();
19
20 let info: &GstAudioInfo = &ptr.info;
21
22 if !info.finfo.is_null() && info.channels > 0 && info.rate > 0 && info.bpf > 0 {
23 return None;
24 }
25 Some(from_glib_none(ptr:info as *const ffi::GstAudioInfo))
26 }
27 }
28}
29
30impl<O: IsA<AudioFilter>> AudioFilterExtManual for O {}
31