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gstreamer: meta Add API to list/check tags

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/1284>
This commit is contained in:
Thibault Saunier 2023-06-29 10:58:51 -04:00 committed by Sebastian Dröge
parent 1bc197db79
commit af57f6f17b
1 changed files with 20 additions and 0 deletions
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20
gstreamer/src/meta.rs
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@ -15,6 +15,23 @@ pub unsafe trait MetaAPI: Sync + Send + Sized {
#[doc(alias = "get_meta_api")]
fn meta_api() -> glib::Type;
fn has_tag(&self, tag: glib::Quark) -> bool {
unsafe {
from_glib(ffi::gst_meta_api_type_has_tag(
Self::meta_api().into_glib(),
tag.into_glib(),
))
}
}
fn tags(&self) -> &[glib::GStringPtr] {
unsafe {
glib::StrV::from_glib_borrow(ffi::gst_meta_api_type_get_tags(
Self::meta_api().into_glib(),
))
}
}
#[inline]
unsafe fn from_ptr(buffer: &BufferRef, ptr: *const Self::GstType) -> MetaRef<Self> {
debug_assert!(!ptr.is_null());
@ -758,6 +775,9 @@ mod tests {
.collect::<Vec<_>>();
assert_eq!(metas.len(), 1);
assert_eq!(metas[0].parent().as_ptr(), parent.as_ptr());
assert!(!metas[0].has_tag(glib::Quark::from_str("video")));
assert!(metas[0].has_tag(glib::Quark::from_str("memory-reference")));
assert_eq!(metas[0].tags().len(), 1);
}
{