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Tags: factorize get_index unsafe code

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François Laignel 2018-07-09 21:44:19 +02:00 committed by Sebastian Dröge
parent 0b9edee8d7
commit 7ca54cf1c5
1 changed files with 8 additions and 12 deletions
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20
gstreamer/src/tags.rs
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@ -264,19 +264,15 @@ impl TagListRef {
}
pub fn get_index<'a, T: Tag<'a>>(&'a self, idx: u32) -> Option<&'a TypedValue<T::TagType>> {
unsafe {
let value = ffi::gst_tag_list_get_value_index(
self.as_ptr(),
T::tag_name().to_glib_none().0,
idx,
);
self.get_index_generic(T::tag_name(), idx)
.and_then(|value| unsafe {
let value = value.to_glib_none().0;
if (*value).g_type != T::TagType::static_type().to_glib() {
return None;
}
if value.is_null() || (*value).g_type != T::TagType::static_type().to_glib() {
return None;
}
Some(&*(value as *const TypedValue<T::TagType>))
}
Some(&*(value as *const TypedValue<T::TagType>))
})
}
pub fn get_index_generic<'a>(&'a self, tag_name: &str, idx: u32) -> Option<&'a SendValue> {