[Kdenlive-devel] Export: correctly works only to HQ

[jb]

On Friday 29 December 2006 11:32, Carsten Pfeiffer wrote:
> On Friday 29 December 2006 11:15, GeBu wrote:
> > Im very glad for KDEnlive. It is what I needed. Now I can do what I need.
> > I can correctly export only to "high quality" (dv or avi). I cannot
> > correctly export to MPEG, MPEG4, DVD (I have not done exact tests). Only
> > first clip (my first clip  is created from picture) is exported without
> > effects.

Works correctly on my system with latest Kdenlive & FFMPEG svn... I did a 
quick test mixing a low res mpeg with a color clip and dv file, sepia filter 
and crossfades, all formats exported fine.

For your info, exports are all passed to FFMPEG using the parameters found in 
the file exports.profile in the profile folder.

For example. DV AVI export has an entry:

2:HQ:DV:Avi DV:PAL::avformat:PAL:avi:format=avi vcodec=dvvideo 
acodec=pcm_s16le size=720x576

The last section of the line (after the last ":") is directly passed to FFMPEG 
(libavformat)

I have to say that I am far from understanding all FFMPEG parameters, so I did 
just put some parameters that seemed to work for me, but if anyone with a 
better knowledge wants to spend some time on it, there is probably room for 
improvement.

I think we could maybe one day ask on the ffmpeg-users mailing list what 
people think are the best parameters to convert a dv video (MLT internally 
works with dv resolution) to the various export formats... But for sure there 
is no easy answer.

(you can see the exports.profile file online at: 
http://svn.sourceforge.net/viewvc/kdenlive/trunk/kdenlive/profiles/exports.profile?view=markup )

regards
jb