Patent ID: 8683515
Filing Date: 2014-03-25
Classification: H04N

Abstract:
1. A method comprising: receiving, at a network device, a first version of a first video stream for a first channel; causing, by the network device, display of the first version of the first video stream using a normal video processing mode, wherein the network device is configured to decode a full video stream and display an associated video when operating in the normal video processing mode; receiving, at the network device, a second version of a second video stream upon a channel change to a second channel, the second version including a subset of pictures from a first version of the second video stream, wherein the subset includes one or more non-discardable pictures frames and wherein the subset includes one or more discardable pictures frames responsive to a number of consecutive discardable pictures frames in the first version of the second video stream exceeding a threshold; causing, by the network device, display of the second version of the second video stream in a low-delay video processing mode that is different from the normal video processing mode, wherein the network device is configured to suppress an error associated with processing the second version of a video stream when operating in the low-delay video processing mode, and wherein suppressing the error allows a buffer that stored the second version of the second video stream to disregard a policy that is set for the buffer while operating in the normal video processing mode, the policy comprising generating an error based on occurrence of an overrun or underrun of the buffer; receiving, at the network device, a first version of the second video stream at a transition point associated with a portion of the first version that succeeds a last portion of the second version that is displayed; and causing, by the network device, display of the first version of the second video stream from the transition point, wherein the display of the first version of the second video stream occurs in the normal video processing mode.