[MPlayer-users] File size inverse prop. to bitrate?

[marcogi at libero.it]

On Wed, 1 May 2002, Michael Niedermayer wrote:

> > This time I got a 200MB file. Is this normal?
> RTFM
>  vb_strategy=X    strategy to choose between
>                                  I/P/B frames :
>                                    0 allways use max B
>                                    1 avoid B frames in high
>                                      motion / scene change (can
>                                      lead to filesize miss
>                                       ^^^^^^^^^^^^^^^^^^^
>                                      prediction)
>                                      ^^^^^^^^^^
>                                  default = 0
>
> > btw, where all lavc options are explained? I did not find nothing in ffmpeg
> > docs.
> manual page of mencoder

oops! I red old /usr/local/man/man1/mencoder.1 not cvs one. My mistake.

> > And, again, how tn and vb/hb vop filters thresholds work?
> mplayer -npp help

Yes, I did it, but I would like to know what the meaning of first and second
thesholds for vb/hb, and the threes of tn.
For examples, for tn help says:
tn	tmpnoise	(3 Thresholds)		Temporal Noise Reducer
			1. <= 2. <= 3.		larger -> stronger filtering
How first threshold works? And the second and third?
What the difference from:
tn:16:32:1024
and
tn:800:900:1024

Same question on vb/hb thesholds.

--
Regards,  Marco Gigante
Student at Pisa University - Computer Engineering