Patent ID: 7512325

Claim:
A video reproduction apparatus, comprising: a memory unit; a video decoder for generating a reference picture and storing the reference picture into the memory unit, and for generating a non-reference picture by referring to the reference picture stored in the memory unit, wherein the video decoder provides a not-ready signal to indicate whether decoding of a next set of macroblocks of the non-reference picture is completed; a displaying unit for displaying the non-reference picture on a set of macroblocks basis; wherein when the displaying unit displaying a current set of macroblocks of the non-reference picture, the displaying unit also detects whether the decoding of the next set of macroblocks of the non-reference picture is completed according to the not-ready signal provided by the video decoder, the displaying unit displays the next set of macroblocks of the non-reference picture if decoding of the next set of macroblocks is completed, and the displaying unit displays the corresponding set of macroblocks of the reference picture if decoding of the next set of macroblocks is not completed; wherein the not-ready signal provided by the video decoder is generated from the comparison between a location of the next set of macroblocks to be displayed and a location of a decoding set of macroblocks which is currently being decoded by the video decoder.