An object that defines the context within which custom compositors render new output pixel buffers.
SDKs
Framework
@interface AVVideoCompositionRenderContext : NSObject
An instance of AVVideo provides size and scaling information and offers a service for efficiently providing pixel buffers from a managed pool of buffers.
- newReturns a pixel buffer to use for rendering.
videoThe video composition being rendered.
highThe rendering quality to use.
renderA scaling ratio that is applied when rendering frames.
renderA transform to apply to the source image.
sizeThe width and height for the rendering frames.
edgeThe thickness of the edge processing region on the left, top, right, and bottom edges, in pixels.
AVEdgeAn edge processing region thickness.
pixelThe pixel aspect ratio for rendered frames.
AVPixelA pixel aspect ratio for the rendering context.
AVVideoAn object that represents an immutable video composition.
AVMutableAn object that represents a mutable video composition.
AVAsynchronousAn object that supprts using Core Image filters to process an individual video frame in a video composition.
AVAsynchronousAn object that contains the information necessary for a video compositor to render an output pixel buffer.
AVMutableAn operation performed by a compositor.
AVMutableAn object used to modify the transform, cropping, and opacity ramps applied to a given track in a mutable composition.
AVVideoAn object used to incorporate Core Animation into a video composition.
AVVideoAn operation performed by a compositor.
AVVideoAn object used to modify the transform, cropping, and opacity ramps applied to a given track in a composition.