[MPlayer-users] Does option -mc 0 work for AVIs aswell ???

[Martin Hoffmann]

The "duplicate 1 frame(s)!!!" also appears when encoding with -nosound and 
when specifying wrong audio codec for decoding source file (-> nosound)

Is this the way it's meant to be ?! How can mencoder know if there is a frame 
to duplicate/skip when there is no audio information ???

Martin

> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> Can anyone tell me, how AVIs are synced when encoded with mencoder ?
>
> I have several AVI files which i try to encode to avi with another codec.
> Mencoder somehow seems to desync the output files (at least the new avi
> isn't lip-sync anymore - the source was !) :
>
> Writing AVI header...
> Pos:   0.6s     18f ( 0%)   0fps Trem:   5min  55mb  A-V:0.000 [0:132]
> duplicate 1 frame(s)!!!
> Pos:  11.0s    276f ( 3%)  27fps Trem:   4min  53mb  A-V:0.000 [1287:158]
> Writing AVI index...
> Fixup AVI header...
>
> Why is mencoder duplicating anything ?
>
> Both options -mc 0 and -nobps have no influence on this behaviour !
> With Mpeg Files as input -mc 0 works as aspected !
>
> What am i doing wrong ?
>
> I'm using todays cvs of mencoder and i can provide a complete bugreport if
> this turns out to be a bug ! However i'm not sure if i did something wrong,
> but for mpeg files (or MPEGPES from VDR) the syncing works AND -mc 0 works
> as aspected !
> Any ideas ?
>
> Martin
>
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