Struct MediaFrame

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pub struct MediaFrame { /* private fields */ }
Expand description

cv::MediaFrame class represents an image/media frame obtained from an external source.

cv::MediaFrame represents image data as specified in cv::MediaFormat. cv::MediaFrame is designed to be a thin wrapper over some external memory of buffer; the class itself provides an uniform interface over such types of memory. cv::MediaFrame wraps data from a camera driver or from a media codec and provides an abstraction layer over this memory to G-API. MediaFrame defines a compact interface to access and manage the underlying data; the implementation is fully defined by the associated Adapter (which is usually user-defined).

§See also

cv::RMat

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impl MediaFrame

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pub fn default() -> Result<MediaFrame>

Constructs an empty MediaFrame

The constructed object has no any data associated with it.

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impl Boxed for MediaFrame

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unsafe fn from_raw(ptr: <MediaFrame as OpenCVFromExtern>::ExternReceive) -> Self

Wrap the specified raw pointer Read more
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fn into_raw(self) -> <MediaFrame as OpenCVTypeExternContainer>::ExternSendMut

Return the underlying raw pointer while consuming this wrapper. Read more
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fn as_raw(&self) -> <MediaFrame as OpenCVTypeExternContainer>::ExternSend

Return the underlying raw pointer. Read more
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fn as_raw_mut( &mut self, ) -> <MediaFrame as OpenCVTypeExternContainer>::ExternSendMut

Return the underlying mutable raw pointer Read more
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impl Debug for MediaFrame

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Drop for MediaFrame

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl MediaFrameTrait for MediaFrame

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impl MediaFrameTraitConst for MediaFrame

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fn as_raw_MediaFrame(&self) -> *const c_void

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fn desc(&self) -> Result<GFrameDesc>

Returns a media frame descriptor – the information about the media format, dimensions, etc. Read more
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fn blob_params(&self) -> Result<any>

@private – exclude from the OpenCV documentation for now.
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impl Send for MediaFrame

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<Mat> ModifyInplace for Mat
where Mat: Boxed,

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unsafe fn modify_inplace<Res>( &mut self, f: impl FnOnce(&Mat, &mut Mat) -> Res, ) -> Res

Helper function to call OpenCV functions that allow in-place modification of a Mat or another similar object. By passing a mutable reference to the Mat to this function your closure will get called with the read reference and a write references to the same Mat. This is unsafe in a general case as it leads to having non-exclusive mutable access to the internal data, but it can be useful for some performance sensitive operations. One example of an OpenCV function that allows such in-place modification is imgproc::threshold. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.