[MPlayer-users] Mencoder segfaults with DivX4

[René Bartsch]

----- Original Message -----
From: "Michael Niedermayer" <michaelni at gmx.at>
To: <mplayer-users at mplayer.dev.hu>
Sent: Thursday, February 14, 2002 10:26 PM
Subject: Re: Re: [MPlayer-users] Mencoder segfaults with DivX4


> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> Hi
>
> On Thursday 14 February 2002 19:43, René Bartsch wrote:
> > [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> > MPEG4 compression ever needs a resolution which is a multiple on 16, as for
> > MPEG4 uses sqares of  16 to 16 pixels for the motion compensation.
> RTF(mpeg4 std)
> mpeg4 supports 16x16 & 8x8 based motion compensation
>
> it doesnt need the size to be a multiple of 16, imho mpeg4 does support odd
> sizes, but iam no sure
>
> > This is also for DivX 4.xx! If you use values not dividable by 16, there
> > can  be a huge loss of quality.
> RTF(mpeg4 std) section 7.6.1
> i dunno about divx4

http://www.divx.com/support/guides/aspect_ratio.php?cid=1&gid=4

Rene

>
> [...]
>
> Michael
>
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