[MPlayer-dev-eng] [PATCH] H.264 encoding in mencoder

Loren Merritt lorenm at u.washington.edu
Mon Aug 23 06:37:21 CEST 2004


On Sun, 22 Aug 2004 snacky at ikaruga.co.uk wrote:

> On Sun, Aug 22, 2004 at 09:57:38PM -0500, snacky at ikaruga.co.uk wrote:
> > It might also be
> > nice if someone more experienced than me (i.e., practically anyone)
> > would look after this patch while x264 matures.
>
> > This is the first time I've ever generated a patch; let me know if I
> > did something wrongly.
>
> As if to underscore my point, I screwed that up. Please don't use the
> patch in my last message. Attached is a patch that's not borked up.

> +.B fullinter
> +Use all available interframe analyse methods (i4x4, psub8x8, psub16x16) (default: 4x4, psub8x8)

The default inter prediction modes are i4x4 and psub16x16, not psub8x8.

> +.B iframeref=<value>
> +Reference I-Frame (default: 1 - usually should not be changed)

iframeref controls the number of previous frames considered as predictors
in a P-frame. (The "i" in param.i_frame_reference is hungarian notation.)
And the reason it shouldn't be changed is that it's not yet implemented.

--Loren Merritt




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