2010/8/4 Dan Dennedy <dan at dennedy.org>: > On Wed, Aug 4, 2010 at 1:24 PM, Simon A. Eugster <simon.eu at gmail.com> > wrote: >> On 04.08.2010 22:20, Till Theato wrote: >>> -----BEGIN PGP SIGNED MESSAGE----- >>> Hash: SHA1 >>> >>> On 08/04/2010 09:38 PM, Simon A. Eugster wrote: >>>> I would like to add 1080/50i there. See: >>>> http://kdenlive.org/forum/choosing-video-profile-which-choose >>>> But where are they stored? Couldn't find anything. >>> >>> Don't expect Kdenlive to reveal all its secrets ;) >>> Actually they aren't in Kdenlive at all. >> >> I thought so; git grep usually reveals such things :) >> >>> Have a look at your MLT source directory: profiles/ >>> or on the system something similar to /usr/share/mlt/profiles/ >>> However there is no need to add 1080/50i. HD 1080i 25fps (or >>> /usr/share/mlt/profiles/atsc_1080_50i) is the right one. "25fps" is not >>> meant to be 25i and therefore 12.5p. Sounds a bit misleading though. >> >> Is there something like an official naming? >> I mean, there are 25 full frames, but 50 interlaced frames. And isn't the >> frame rate actually 50 fps? (A half frame every 50th second?) Because >> otherwise it would not make sense to store them interlaced. > > No, it is 50 fields per second, but the 'f' in fps means frames, and > there is 25 frame per second. I used to use Hz for the vertical > refresh rate, which is probably most correct, but I chose to dumb it > down and keep it simple for people who are not so familiar with > interlace. Those who are knowledgable should be able to understand > from both the 'fps' and the other fields that are shown when selecting > profiles.
Thanks for the explanation! Clear now. http://kdenlive.svn.sourceforge.net/viewvc/kdenlive?view=revision&revision=4741 Simon