Hi,
Stas Oskin wrote:
[...]
> I found an older post of yours (circa 2006 -
> http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2006-February/007069.html),
> where you describe the following params:
>
> gop_size = 25
> me_method = ME_EPZS
> flags = CODEC_FLAG_INTERLACED_ME | CODEC_FLAG_INTERLACED_DCT
> mb_decision = FF_MB_DECISION_RD
> noise_reduction = 250
> pre_me = 0
Most of those settings depend on the input video. For example:
> flags = CODEC_FLAG_INTERLACED_ME | CODEC_FLAG_INTERLACED_DCT
is needed for interlaced video
> noise_reduction = 250
> pre_me = 0
> me_method = ME_EPZS
these three values were obtained by running a long set of experiments
and comparing the quality. They gave good results for the kind of video
I was using, but for other video inputs you will need different values
(depending on the amount of movement in the scene, the kind of light,
etc...).
> mb_decision = FF_MB_DECISION_RD
This is the one I recommended ;-)
For what concerns the gop_size value, you can try increasing it
to see if the quality of the video improves (but AFAIR some players
have problems with large GOPs).
Luca
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