Sunday, January 25, 2009

Key Frames - the real meaning

Key Frames are also known as I-frames - short for Intra-coded frames.

Key Frames are encoded with no other frames used as a reference.

This allows one to jump to a Key frame with minimal decoding effort.


Key Frames are large compared to other types of compressed frames, and having too many of them will hurt video quality. On the other hand, having too few will make it hard to navigate in the video.

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