jb wrote: > Harry van der Wolf wrote: > >> 2. Quality of transitions: >> When I select a Crossfade transition without LUMA file, the rendered >> slideshow in the end looks good. However, the slideshow effect is >> sometimes not visible at all. It looks as if it is skipped. >> Also, When I select a nice LUMA transition (clock, the new swirl, or >> another), >> - the transition effect is sometimes not visible at all >> - sometimes it looks like a "stutter" going from one slide to another, >> but the effect itself is not visible >> - and sometimes the effect is not finished, showing artifacts from the >> previous slide in the current slide (after the transition is finished, >> that is). >> >> > > Does it also happen when you render the movie or only on preview ? > > I'm not referring to the preview. It does happen too during the preview, but that's just a CPU problem with my old laptop. I really mean the rendered video. I did tests with several photo's in small arrays, 6 or 7, and in large arrays, 50-130. This does not make a difference in behavior. >> My questions here are: >> a. how is the slideshow implemented? Is it a (external) call tot >> DVD-Slideshow (or dir2slideshow) from the DVD-slideshow tools, and if >> so: what version is needed? My Kubuntu comes shipped with the 0.72 >> package. Is anyone using a newer version (the new 0.80) and does >> he/she do not have this caveats in quality (assuming it is based on >> dvd-slideshow)? >> b. If it is not dvd-slideshow, is there some quality setting for >> slideshows within Kdenlive. Some video packages also have a separate >> slideshow functionality. These slideshows are sometimes generated with >> a lower quality as the changes from frame to frame are almost zero, >> unless you start to use fancy transitions in which case you need some >> intelligence to create slideshows with low bandwidth on the slide >> itself and high bandwidth on the transitions (2-pass encoders, same >> for video). >> c. If b is true, can you put in some high/low quality setting in case >> transitions are used. >> > > The slideshow uses an MLT filter that does the transition. Maybe there > are some bugs in it, I will try to make some tests. > I'm now using the MLT/MLT++ svn's. I will make a test myself with the standard 0.2.2 versions libraries. I also use the free vmware player (for feisty). I will try to make another platform in vmware, say slackware, and try it both in feisty and slackware.
Thanks for your answers. Kind regards, Harry -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.kde.org/pipermail/kdenlive/attachments/20070307/b28c3098/attachment.html>
