[Kdenlive-devel] big changes to consumer_avformat.c - impacts kdenlive

[Mads Bondo Dydensborg]

onsdag 13 Februar 2008 skrev Dan Dennedy:

I know this is a very old post, that I am responding to, but I have trouble 
getting it to work as expected. Using most recent mlt svn.

> Hey all,
> 
> With the last commit, MLT just made the jump to real world-class
> encoding! Be sure to read the exciting notes in the commit message. In
> summary, you no longer have to remember MLT's special properties for
> the settings. Now it uses ffmpeg's options which you can look up with
> 'ffmpeg -h' and 'ffmpeg -formats.' With inigo, you just need to
> translate ffmpeg's '-option value' syntax to 'option=value.' This also
> means nearly _all_ of ffmpeg's options are available. Not all of them
> because some of them only make sense with ffmpeg - e.g. pad and crop.

Up until now, I have used the KDE3 version of kdenlive, and I still am (forced 
to) using it. So, to create DVD's, I have exported a DV file from kdenlive, 
and used this to create VOB files:

ffmpeg -threads 3 -deinterlace -top 0 -i test.dv -target pal-dvd -aspect 
16:9 -sameq -pass 1 -passlogfile test.log test.mpg

ffmpeg -threads 3 -deinterlace -top 0 -i test.dv -target pal-dvd -aspect 
16:9 -sameq -pass 2 -passlogfile test.log test.mpg

I am not even sure that is the right way to do it, but it has been giving me 
visually pleasing results.

Now, trying to render directly from the westly file that an export scripts 
from kdenlive0.6 produces, I have tried this command line:

inigo test.westley resize=hyper in=0 out=40206 progress=1 -consumer 
avformat:test.vob deinterlace=1 top=0 target='pal-dvd' aspect=16:9 sameq=1

However, this produces output in a file called "pal-dvd", which is not what I 
expected, and which appears to contain artifacts and has a pretty low bitrate. 
Also, I am very uncertain on how to get multipass. Could you perhaps shed 
some light on this - and why I get a file called 'pal-dvd' in the above 
example?

Regards

Mads

-- 
Mads Bondo Dydensborg   mads at dydensborg.dk   http://www.madsdydensborg.dk/

The Bible tells us to be like God, and then on page after page it describes
God as a mass murderer. This may be the single most important key to the
political behavior of Western Civilization.
                       - Robert A. Wilson (Right Where You Are Sitting Now)