A MULTI STREAM SWITCH-BASED VIDEO EDITING ARCHITECTURE

摘要

An architecture for performing real-time image processing on multiple imagedata streams using compressed or uncompressed imagedata includes a switch for forwarding data from multiple input sources tomultiple destinations on a video processing device. The videoprocessing device includes two independent processing pipelines for processingtwo different data streams. The switch may couple oneor both input data stream to multiple different destinations. Multiple videoprocessing devices may be coupled via the switch to increasethe number of data streams capable of being processed at any given time.Mixers are coupled in a cascaded fashion using the switch,thereby providing selective keying capability and allowing multiple keyingevents to be entered during one phase of processing. Each ofthe processing pipelines on the video processing device includes dedicatedprocessing logic, compression logic and frame buffer storage.Logic is provided with each frame buffer to support motion effects.