| 摘要 |
A change in field order between an input video frame and an output video frame or an input video frame being displaced by an odd number of scan-lines with respect to an output video frame, may introduce out of order fields in the output video frame. A method ( 700 ), apparatus and computer program product for generating an interlaced video stream from one or more interlaced input video streams and graphical objects is disclosed. The method ( 700 ) enables input video streams to be transformed (e.g., scaled and translated) to generate an interlaced video stream. The method ( 700 ) ensure that the fields of an output video frame are in correct order by shifting a corresponding input video frame down by one scan-line.
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