Kamaelia.UI.Pygame.VideoOverlay.VideoOverlay

class VideoOverlay(Axon.Component.component)

VideoOverlay() -> new VideoOverlay component

Displays a pygame video overlay using the PygameDisplay service component. The overlay is sized and configured by the first frame of (uncompressed) video data is receives.

NB: Currently, the only supported pixel format is "YUV420_planar"

Inboxes

control : Shutdown signalling
inbox : Receives uncompressed video frames

Outboxes

outbox : NOT USED
signal : Shutdown signalling
yuvdata : Sending yuv video data to overlay display service
displayctrl : Sending requests to the PygameDisplay service

Methods defined here

Warning!

You should be using the inbox/outbox interface, not these methods (except construction). This documentation is designed as a roadmap as to their functionalilty for maintainers and new component developers.

init(self)

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

formatChanged(self, frame)

Returns True if frame size or pixel format is new/different for this frame.

main(self)

Main loop.

newOverlay(self, frame)

Request an overlay to suit the supplied frame of data

waitBox(self, boxname)

Generator. yields 1 until data ready on the named inbox.

Feedback

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