[MPlayer-users] Congratulations! & suggestion

[Francois Visagie]

Hi All,

Congratulations!

For the past couple of years I'd been transferring DV home movies to AVI
files on CD with XviD compression. Because the originals (tapes) get
overwritten sooner or later, I wanted to be sure of getting the best quality
possible for the available amount of storage space. All told, I probably
spent a person-week or two comparing various settings and results before
deciding upon a final configuration.

Due to circumstance, that configuration got lost. I spent this past long
weekend recreating it, using old footage for reference (resolution, bitrate
etc.). When I was done I moved on to other things, and came across the
following formulae in MPlayer.htm:

ResY = INT(SQRT( 1000*Bitrate/25/ARc/CQ )/16) * 16 and ResX = INT( ResY *
ARc / 16) * 16

If you plug in my settings, such as bitrate and aspect ratio, you arrive at
exactly the same resolution I had arrived at by brute force. To me that
simultaneously validates the settings I'd been using, as well as those
formulae for future use. Very useful to know!

Suggestion:

Is there any way of modifying mencoder to record for future reference codec,
multiplexer etc. configurations as, say, private data in popular container
formats?

Regards,
Francois





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