A MULTI STREAM SWITCH-BASED VIDEO EDITING ARCHITECTURE

摘要

An architecture for performing real-time image processing on multiple image data streams using compressed or uncompressed image data includes a switch for forwarding data from multiple input sources to multiple destinations on a video processing device. The video processing device includes two independent processing pipelines for processi ng two different data streams. The switch may couple one or both input data stream to multiple different destinations. Multiple video processing devices may be coupled via the switch to increase the 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 keying events to be entered during one phase of processing. Each of the processing pipelines on the video processing device includes dedicated processing logic, compression logic and frame buffer storage. Logic is provided with each frame buffer to support motion effects.