MEMORY UTILIZATION FOR VIDEO DECODING AND DISPLAY WITH 3:2 PULL-DOWN

摘要

A system and method for decoding a video bitstream and displaying the video with 3:2 pull-down using a frame buffer whose size is not sufficient to hold an entire decoded frame. This is accomplished by using the additional time required by the display with 3:2 pull-down to decode a portion of the frame for a second time. The present invention provides memory savings, additional flexibility in decoder design, and reductions in memory controller complexity and power consumption. In the case of MPEG-2 decoders, the present invention allows the implementation of PAL/SECAM main profile at main level decoders with 3:2 pull-down using only a 16 megabit memory.