[MEncoder-users] duplicate frame(s) message ?

[Ivo]

On Friday 01 December 2006 11:48, Pierre Catello wrote:
> Hello,
>
> I don't understand a message from Mencoder :
> - I did quite a lot of test to work out my final settings for a PAL DV to
> mpeg4 encoding, using -nosound during the tests. Now that I'm ready for
> the real encoding (which will take a long time), I set audio output to
> -oac copy.
>
> And Mencoder is now sending me a lot of "duplicate frame(s)" messages...
> However, playing the source dv file through mplayer does not raise this
> problem, and audio seems Ok.
>
> Note that I'm using yadif 3 to deinterlace, may be I'm messing up
> something with the framerate (-fps 50 -ofps 50).

Interlaced PAL material is 50 fields per second, but 25 _frames_ per second. 
After deinterlacing, it is still 25 frames per second.

It looks like you are trying to output 50 frames per second, in which case 
every frame will be duplicated. But I don't know for sure, as you didn't 
post your command line(s).

--Ivo