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use std::ffi::CStr;
use std::marker::PhantomData;
use std::str::from_utf8_unchecked;
use ffi::*;
use media;
pub struct Pad<'a> {
ptr: *const AVFilterPad,
idx: isize,
_marker: PhantomData<&'a ()>,
}
impl<'a> Pad<'a> {
pub unsafe fn wrap(ptr: *const AVFilterPad, idx: isize) -> Self {
Pad {
ptr,
idx,
_marker: PhantomData,
}
}
pub unsafe fn as_ptr(&self) -> *const AVFilterPad {
self.ptr
}
pub unsafe fn as_mut_ptr(&mut self) -> *mut AVFilterPad {
self.ptr as *mut _
}
}
impl<'a> Pad<'a> {
pub fn name(&self) -> Option<&str> {
unsafe {
let ptr = avfilter_pad_get_name(self.ptr, self.idx as i32);
if ptr.is_null() {
None
} else {
Some(from_utf8_unchecked(CStr::from_ptr(ptr).to_bytes()))
}
}
}
pub fn medium(&self) -> media::Type {
unsafe { media::Type::from(avfilter_pad_get_type(self.ptr, self.idx as i32)) }
}
}