Why MPEG2 is not as bad as you may think…

Many thinks that MPEG2 is necessarily a bad codec to use, in particular for HD video – because is old, and there are more sophisticated new video codecs around; well, even if AVC (and VC-1, too) is better – a lot, indeed – this “ancient” codec is quite good.

With this, I don’t encourage anyone to compress video using MPEG2 instead AVC, at the contrary; but, when you encounter an MPEG2 hi-def source – like HDTV or D-VHS – please don’t discard it immediately!

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Restoration tips: Kush Gauge™

KUSH GAUGE™ -> new Kush Gauge calculator

What is the Kush Gauge™?

It’s a rule of thumb to calculate the needed bitrate for H.264 encoded video; it was written by Kush Amerasinghe, a computer scientist. In this context, the word “gauge” means “a device used to make measurements

How does it work?

Quoting Kush’s document:

to estimate the optimal H.264 bit rate value that would give what is considered “good quality” results for a given video, you could multiply the target pixel count by the frame rate; then multiply the result by a factor of 1, 2 or 4, depending on its motion rank; and then multiply that result by 0.07 (the constant, Ed.) to get the bit rate in bps (divide that by 1,000 to get a kbps estimate or by 1,000,000 to get a Mbps estimate).

The Kush Gauge™ formula:

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