[Kdenlive-devel] IPB frame order and possible link tomy"jerking" video?

[Dan Dennedy]

On Wednesday 06 June 2007 19:19, Jan Uhlir wrote:
> >> Also, I think it would be interesting to work on getting a good
> >> quality DV AVI
> >> out of kdenlive and then try using it with mjpegtools mpeg2enc (you
> >> can use
> >> Kino as a frontend) to see what the result is.
> >
> >Thanks a lot for the explaination Dan.
> >So which output should we use as default?
> >avi DV?
>
> I would suggest pipes transfering some uncompressed plain format (YUV?
> RGB?) to mpeg2enc and then to mplex. Kino seems to have somethig we would
> like to have in it's export scripts.

Heh, I thought you liked the direct integration as opposed to the frontend-ing 
as in Kino!?

> DV Avi -
> No temporary files please! Asepcially not DV. They are HUGE!

True, but it really is a good intermediate file when working with NTSC or PAL 
material as it is more compressed than lossless or uncompressed, the 
compression is fairly light, ffmpeg's DV encoder very good, and many tools 
work with DV.

> BTW, DV AVI has limited variety of supported resolutions, just PAL and
> NTFS, this would make system unflexible.

Yes, only recommended if you are working with NTSC, PAL, or anamorphic 16:9 
variants thereof.

> And after all, converting MPEG to DV and back to MPEG would bring much
> unvanted reencoding = unwanted artifacts.

Not ideal, I agree, but the DV codec in ffmpeg is very good. Ah, so you are 
using a MPEG-2 source?