Patent ID: 9264709
Filing Date: 2016-02-16
CPC Classification: H04L,H04N

Claim Text:
1. A method for mixing video streams in a video mixer device comprising: receiving input video streams, the input video streams encoded with code words for macroblocks of the input video streams, interdependencies for the macroblocks of each input video stream being defined among the code words, the interdependencies affecting at least one of decoding of the macroblocks and mixing of the macroblocks for that input video stream, the input video streams comprising a first input video stream and a second input video stream, the first input video stream having a first macroblock and the second input video stream having a second macroblock; entropy decoding the input video streams such that the interdependencies among the code words are dissolved, the entropy decoding comprising: intermixing the entropy decoded macroblocks of the input video streams such that data of the macroblocks of the input video streams are rearranged and mixed together; entropy encoding the intermixed macroblocks to form a single output video stream, the output video stream having a macroblock that comprises data from the first and second macroblocks of the first and second input video streams.