use glib::translate::*;
use gst::prelude::*;

use crate::{AudioAggregatorPad, ffi};

pub trait AudioAggregatorPadExtManual: IsA<AudioAggregatorPad> + 'static {
    fn audio_info(&self) -> Option<crate::AudioInfo> {
        unsafe {
            let ptr = self.as_ptr() as *mut ffi::GstAudioAggregatorPad;
            let _guard = self.as_ref().object_lock();

            let info = &(*ptr).info;

            if info.finfo.is_null() || info.channels <= 0 || info.rate <= 0 || info.bpf <= 0 {
                return None;
            }

            Some(from_glib_none(mut_override(
                info as *const ffi::GstAudioInfo,
            )))
        }
    }
}

impl<O: IsA<AudioAggregatorPad>> AudioAggregatorPadExtManual for O {}
