[FFmpeg-user] [ffmpeg-user mailing list] Questioning about encoded file size with various motion estimation algorithms in H.263 codec

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Dear, all


I'm Junhyung Moon, who is a Ph.D. student in Yonsei University.


Thesedays, I'm doing some video encoding experiments with ffmpeg-1.1.1 for my research.

I got result files after encodings with same parameters (quantization level, GOP size), only changing motion estimation algorithms (epzs, full search, diamond search, etc.)

As I know, encoded file size for full search is smaller than that for any other motion estimation algorithm.

However, I found that file size for full search is the biggest !!

So, I was confused about this result. 

If you can comment about this result, it will be very appreciated and helpful for my research.


Thanks million in advance,


Junhyung Moon