[MPlayer-users] mencoder encoding time?

Arpi arpi at thot.banki.hu
Thu Dec 20 22:01:20 CET 2001


> | > Do a test run. See how long it takes to encode 5 minutes. You can use
> | > this formula:
> | > (encodingTime/clipTime)*totalMovieTime = totalEncodingTime
> | 
> | boy, that is a very complicated formula! Are you some kind of
> | mathematician?


bitrate calculation and size estiamtion (even an option to specify resulting
size and mencoder will automagically calculates bitrate options) are planned
features. it's not easy as estimating VBR mp3 size is impossible.
you can either use CBR - then estimaition si simple math - or first compress
audio only, then calculate bitrate and compress video.

it will be called 3-pass compression (1.pass: audio compress and bitrate
calc, 2. pass: video pass 1, 3. pass: video pass 2)

A'rpi / Astral & ESP-team

mailto:arpi at thot.banki.hu

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