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jb wrote:
<blockquote cite="mid45EE8E3E.7050309@ader.ch" type="cite">
<pre wrap="">Harry van der Wolf wrote:
</pre>
<blockquote type="cite">
<pre wrap="">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).
</pre>
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<pre wrap=""><!---->
Does it also happen when you render the movie or only on preview ?
</pre>
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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.<br>
<blockquote cite="mid45EE8E3E.7050309@ader.ch" type="cite">
<pre wrap=""></pre>
<blockquote type="cite">
<pre wrap="">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.
</pre>
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<pre wrap=""><!---->
The slideshow uses an MLT filter that does the transition. Maybe there
are some bugs in it, I will try to make some tests.
</pre>
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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.<br>
<br>
<br>
Thanks for your answers.<br>
<br>
Kind regards,<br>
Harry<br>
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