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meta: Make MetaTransformCopy transparent

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/1776>
This commit is contained in:
Olivier Crête 2025-08-19 12:09:12 -04:00 committed by GStreamer Marge Bot
parent fda2e3b7e3
commit ccd799a0c2
1 changed files with 28 additions and 19 deletions
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47
gstreamer/src/meta.rs
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@ -1109,19 +1109,31 @@ pub unsafe trait MetaTransform<'a> {
fn to_raw<T: MetaAPI>(&self, meta: &MetaRef<T>) -> Result<Self::GLibType, glib::BoolError>; fn to_raw<T: MetaAPI>(&self, meta: &MetaRef<T>) -> Result<Self::GLibType, glib::BoolError>;
} }
#[derive(Debug, Clone, PartialEq, Eq)] #[repr(transparent)]
pub struct MetaTransformCopy { #[doc(alias = "GstMetaTransformCopy")]
range: (Bound<usize>, Bound<usize>), pub struct MetaTransformCopy(ffi::GstMetaTransformCopy);
region: bool,
}
impl MetaTransformCopy { impl MetaTransformCopy {
pub fn new(region: bool, range: impl RangeBounds<usize>) -> Self { pub fn new(region: bool, range: impl RangeBounds<usize>) -> Self {
skip_assert_initialized!(); skip_assert_initialized!();
MetaTransformCopy {
range: (range.start_bound().cloned(), range.end_bound().cloned()), let offset = match range.start_bound() {
region, Bound::Included(idx) => *idx,
} Bound::Excluded(idx) => *idx + 1,
Bound::Unbounded => 0,
};
let size = match range.end_bound() {
Bound::Included(idx) => *idx + 1,
Bound::Excluded(idx) => *idx,
Bound::Unbounded => usize::MAX,
};
Self(ffi::GstMetaTransformCopy {
region: region.into_glib(),
offset,
size,
})
} }
} }
@ -1134,15 +1146,9 @@ unsafe impl MetaTransform<'_> for MetaTransformCopy {
} }
fn to_raw<T: MetaAPI>( fn to_raw<T: MetaAPI>(
&self, &self,
meta: &MetaRef<T>, _meta: &MetaRef<T>,
) -> Result<ffi::GstMetaTransformCopy, glib::BoolError> { ) -> Result<ffi::GstMetaTransformCopy, glib::BoolError> {
let (offset, size) = meta.buffer.byte_range_into_offset_len(self.range)?; Ok(self.0)
Ok(ffi::GstMetaTransformCopy {
region: self.region.into_glib(),
offset,
size,
})
} }
} }
@ -1304,8 +1310,11 @@ mod tests {
{ {
let meta = buffer.meta::<ReferenceTimestampMeta>().unwrap(); let meta = buffer.meta::<ReferenceTimestampMeta>().unwrap();
let buffer_dest = buffer_dest.get_mut().unwrap(); let buffer_dest = buffer_dest.get_mut().unwrap();
meta.transform(buffer_dest, &MetaTransformCopy::new(false, ..)) meta.transform(
.unwrap(); buffer_dest,
&MetaTransformCopy::new(false, ..),
)
.unwrap();
} }
let meta = buffer_dest.meta::<ReferenceTimestampMeta>().unwrap(); let meta = buffer_dest.meta::<ReferenceTimestampMeta>().unwrap();