Patent ID: 8340180
Filing Date: 2012-12-25
Classification: H04N

Abstract:
1. A method comprising: receiving a first signal from a signal source selection device coupled to a plurality of audio sources each associated with a corresponding video source of a plurality of video streams indicating a first video stream is selected from the plurality of video streams; encoding the first video stream to produce an encoded video stream, wherein a reference frame message identifies a video frame as a long-term reference frame (LTRF) and the LTRF is associated with the first video stream; receiving a second signal from the signal source selection device indicating a second video stream is selected from the plurality of video streams; encoding the second video stream forming a continuation of the encoded video stream; and receiving a third signal from the signal source selection device indicating that the first video stream is re-selected, and on receipt of the third signal, using the LTRF associated with the first video stream as a reference for temporal predictive coding.