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CameraFrame

Struct CameraFrame 

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pub struct CameraFrame {
    pub width: u32,
    pub height: u32,
    pub format: FrameFormat,
    pub rotation_degrees: u16,
    pub sequence: u64,
    pub bytes: Vec<u8>,
}
Expand description

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate. One frame from the viewfinder.

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§width: u32§height: u32§format: FrameFormat§rotation_degrees: u16

How far the frame must be rotated clockwise to be the right way up, which is the sensor’s mounting plus the device’s rotation.

§sequence: u64

Which frame this is in the session, so a consumer can tell a repeat from a new one and count what it missed.

§bytes: Vec<u8>

The pixels, in format.

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impl CameraFrame

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pub fn new( width: u32, height: u32, format: FrameFormat, rotation_degrees: u16, sequence: u64, bytes: Vec<u8>, ) -> Option<CameraFrame>

A frame, or None when the bytes do not match the size and format — which is a backend bug, and one that reads as corrupted video rather than as an error if it is let through.

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pub fn to_rgba8(&self) -> Vec<u8> ⓘ

The frame as tightly packed RGBA8, converting only when it has to.

One pass over the bytes with no allocation beyond the result, because this runs per frame: a conversion that allocates per row shows up as dropped frames rather than as a slow function.

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pub fn upright_rgba8(&self) -> UprightRgba

The frame as tightly packed RGBA8 with rotation_degrees applied, so the pixels are the right way up whatever the sensor’s mounting was.

The turn happens in the same pass as the format conversion, because this runs on every previewed frame: converting and then turning would walk the pixels twice. A rotation that is not a quarter turn is left alone — no camera produces one.

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impl Clone for CameraFrame

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fn clone(&self) -> CameraFrame

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for CameraFrame

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

Formats the value using the given formatter. Read more
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impl Eq for CameraFrame

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impl PartialEq for CameraFrame

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fn eq(&self, other: &CameraFrame) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for CameraFrame

Auto Trait Implementations§

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Gets the TypeId of self. Read more
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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