A capture output that records video and provides access to video frames for processing.
SDKs
Framework
@interface AVCaptureVideoDataOutput : AVCaptureYou use this output to process compressed or uncompressed frames from the captured video. You can access the frames with the capture delegate method.
videoThe compression settings for the output.
Define output image and video formats by using the key and value constants.
alwaysIndicates whether to drop video frames if they arrive late.
automaticallyA Boolean value that indicates whether the output automatically configures the size of output buffers.
deliversA Boolean value that indicates whether the output is configured to deliver preview-sized buffers.
- recommendedReturns a video settings dictionary appropriate for capturing video to be recorded to a file with the specified codec and type.
- recommendedSpecifies the recommended settings for use with an AVAssetWriterInput.
availableIndicates the supported video pixel formats that can be specified in video.
availableIndicates the supported video codec formats that can be specified in video.
AVVideoA set of constants used to describe codecs for video capture.
- setSets the sample buffer delegate and the queue on which callbacks should be invoked.
sampleThe capture object’s delegate.
sampleThe queue on which delegate callbacks should be invoked
AVCaptureMethods for receiving sample buffers from and monitoring the status of a video data output.
Change the format used for capturing movie files.
AVCaptureA capture output that records video and audio to a QuickTime movie file.